Acessibilidade / Reportar erro

Refusal of beds and triage of patients admitted to intensive care units in Brazil: a cross-sectional national survey

ABSTRACT

Objective:

To obtain data on bed refusal in intensive care units in Brazil and to evaluate the use of triage systems by professionals.

Methods:

A cross-sectional survey. Using the Delphi methodology, a questionnaire was created contemplating the objectives of the study. Physicians and nurses enrolled in the research network of the Associação de Medicina Intensiva Brasileira (AMIBnet) were invited to participate. A web platform (SurveyMonkey®) was used to distribute the questionnaire. The variables in this study were measured in categories and expressed as proportions. The chi-square test or Fisher’s exact test was used to verify associations. The significance level was set at 5%.

Results:

In total, 231 professionals answered the questionnaire, representing all regions of the country. The national intensive care units had an occupancy rate of more than 90% always or frequently for 90.8% of the participants. Among the participants, 84.4% had already refused admitting patients to the intensive care unit due to the capacity of the unit. Half of the Brazilian institutions (49.7%) did not have triage protocols for admission to intensive beds.

Conclusions:

Bed refusal due to high occupancy rates is common in Brazilian intensive care units. Even so, half of the services in Brazil do not adopt protocols for triage of beds.

Keywords:
Bed occupancy; Critical care; Triage; Surveys and questionnaires; Intensive care units

RESUMO

Objetivo:

Conhecer dados sobre recusa de leitos nas unidades intensivas no Brasil, assim como avaliar o uso de sistemas de triagem pelos profissionais atuantes.

Métodos:

Estudo transversal do tipo survey. Com a metodologia Delphi, foi criado um questionário contemplando os objetivos do trabalho. Foram convidados médicos e enfermeiros inscritos na rede de pesquisa da Associação de Medicina Intensiva Brasileira (AMIBnet). Uma plataforma da web (SurveyMonkey®) foi a forma de aplicação do questionário. As variáveis deste trabalho foram mensuradas em categorias e expressas como proporção. Foram usados o teste do qui-quadrado ou o teste exato de Fisher, para verificar associações. O nível de significância foi de 5%.

Resultados:

No total, 231 profissionais responderam o questionário, representando todas as regiões do país. As unidades intensivas nacionais tinham mais de 90% de taxa de ocupação sempre ou frequentemente para 90,8% dos participantes. Dentre os participantes, 84,4% já deixaram de admitir pacientes em leito intensivo devido à lotação da unidade. Metade das instituições brasileiras (49,7%) não possuía protocolos de triagem de leitos intensivos instituídos.

Conclusão:

A recusa de leito pela alta taxa de ocupação é frequente nas unidades de terapia intensiva do Brasil. Ainda assim, metade dos serviços do Brasil não adota protocolos para triagem de leitos.

Descritores:
Ocupação de leitos; Cuidados críticos; Triagem; Inquéritos e questionários; Unidades de terapia intensiva

INTRODUCTION

With the advancement of medical sciences, the emergence of more complex procedures and the increase in life expectancy, there is naturally a greater demand for health services. The growing need for intensive care beds fits into this scenario, and such demand often exceeds supply. The cost is impressive, particularly after the outbreak of coronavirus disease 2019 (COVID-19). In Brazil, it is estimated that a patient in an intensive care unit (ICU) bed costs approximately R$2,000.00 (approximately US$500.00) per day.(11 Silva AC, Porto F. Custos das diárias de unidade de terapia intensiva no Sistema Único de Saúde na COVID-19. J Manag Prim Health Care. 2020;12(spec).)

In intensive care, when the admission rate of patients falls, the outcomes are worse for them.(22 Kim SH, Chan CW, Olivares M, Escobar GJ. Association among ICU congestion, ICU admission decision, and patient outcomes. Crit Care Med. 2016;44(10):1814-21.) It is known that ICU admission refusal is associated with higher death rates(33 Metcalfe MA, Sloggett A, McPherson K. Mortality among appropriately referred patients refused admission to intensive-care units. Lancet. 1997;350(9070):7-11.

4 Sprung CL, Geber D, Eidelman LA, Baras M, Pizov R, Nimrod A, et al. Evaluation of triage decisions for intensive care admission. Crit Care Med. 1999;27(6):1073-9.
-55 Edbrooke DL, Minelli C, Mills GH, Iapichino G, Pezzi A, Corbella D, et al. Implications of ICU triage decisions on patient mortality: a cost-effectiveness analysis. Crit Care. 2011;15(1):R56.) and that, more specifically, for critically ill patients, there is a 1.5% increase in the risk of death for each hour of delay in ICU admission.(66 Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.) Due to these factors, refusing and screening ICU beds are invariably complex decisions that must take into account several aspects, from clinical to ethical to meeting the wishes of patients and family members.

Aiming to help with this difficult decision-making process, several specialized medical societies have developed guidelines that aid in triage. The North American Society of Critical Care Medicine (SCCM)(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.) and the task force of the World Federation of Societies of Intensive and Critical Care Medicine (WFSICCM)(88 Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.) updated their guidelines in 2016. In the same year, the Brazilian Federal Council of Medicine (CFM - Conselho Federal de Medicina) published its resolution 2156/2016(99 Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
https://sistemas.cfm.org.br/normas/visua...
) regulating the admission priorities of patients to ICU beds. The guidelines of the specialized societies and CFM Brazil are similar in many aspects, and all recommend that the intensive care services of each institution develop their own protocols, based both on the specialized recommendations and on the individuality of each service. Even so, in the daily routine of ICUs, refusal and triage decisions are regularly based not on scientific evidence but on clinical experience.(1010 Ramos JG, Passos RH, Baptista PB, Forte DN. Fatores potencialmente associados à decisão de admissão à unidade de terapia intensiva em um país em desenvolvimento: um levantamento de médicos brasileiros. Rev Bras Ter Intensiva. 2017;29(2):154-62.)

In the literature, data regarding triage and refusal of ICU beds in Brazil are scarce. The reality of Brazilian intensive care Medicine in these aspects is uncertain, as few studies have been published with this objective.(66 Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.,1010 Ramos JG, Passos RH, Baptista PB, Forte DN. Fatores potencialmente associados à decisão de admissão à unidade de terapia intensiva em um país em desenvolvimento: um levantamento de médicos brasileiros. Rev Bras Ter Intensiva. 2017;29(2):154-62.) It is not known whether Brazilian ICUs have their own protocols or if they follow any of the published guidelines. In addition, Brazilian data is scarce regarding the occupancy rate of intensive care units, frequency of bed refusal, training of professionals in triage or whether there are differences between public, private and mixed services. There is also no clear knowledge about which professional should be responsible for refusal and triage, how long critical patients usually wait for intensive beds in other sectors of the hospital, or whether regional differences exist.

In view of this, the objective of this study is to obtain data on the refusal of beds in ICUs in Brazil, as well as to evaluate the use of triage systems by professionals.

METHODS

A cross-sectional survey was conducted with a questionnaire. This type of evaluation is increasingly used as a tool to access data in various areas, including health care, as well as to translate scientific research into clinical practice.(1111 Pellegrini JA, Cordioli RL, Grumann AC, Ziegelmann PK, Taniguchi LU. Poin-of-care ultrasonography in Brazilian intensive care units: a national survey. Ann Intensive Care. 2018;8(1):50.)

The questions were selected using the Delphi method. A list of questions of interest to the study was developed and sent to five specialists in the field of intensive care medicine (certified intensivists) for consideration and suggestions for changes. After each evaluation, the suggestions were incorporated into the questionnaire and sent for a new round of evaluation. The rounds ended when a consensus of at least 80% approval was reached for each question.(1212 Marques JB, Freitas D. Método DELPHI: caracterização e potencialidades na pesquisa em educação. Pro-Posições. 2018;19(2):389-415.)

The final questionnaire consisted of 58 questions. Questions 1 to 14 referred to the profile of the interviewees; 15 to 36 to the profile of the institution (hospital/ICU); and 37 to 58 to the refusal and triage of ICU beds (Supplementary material). The information on the profile of the interviewees was self-declarations, and no definition of the questions was offered. The variables were categorized according to the suggestions of the experts in the Delphi methodology who helped prepare the questionnaire.

A web platform (SurveyMonkey®) was used to distribute the questionnaire.(1313 Burns KE, Duffett M, Kho ME, Meade MO, Adhikari NK, Sinuff T, Cook DJ; ACCADEMY Group. A guide for the design and conduct of self-administered surveys of clinicians. CMAJ. 2008;179(3):245-52.) The research was conducted by invitation to physicians and nurses working in intensive care units and emergency departments enrolled in the virtual network of the Associação de Medicina Intensiva Brasileira (AMIBnet) via its own network platform. The questionnaire was made available from February to August 2021, and potential participants were sent two reminders during this period.

When accessing the link, the interviewee was initially presented with the Free and Informed Consent Form for participation in the study. The second page provided guidelines for completing the questionnaire, stating that there would be 58 questions answered in approximately 8 minutes. If working in more than one ICU, the participant was asked to respond to questions based on experiences in the ICU where he or she most often worked. On the third page, the questions began. Participants responded to each question until the questionnaire was completed.

All the variables in this study were measured in categories and expressed as proportions. The chi-square test or Fisher’s exact test (when more than 20% of the cells had an expected frequency lower than 5%) was used to verify the association between these variables. A multinomial logistic regression analysis was performed to investigate possible factors associated with the daily frequency of non-admission to the ICU. The significance level used was 5%. The analyses were performed using the IBM Statistical Package for the Social Sciences software (SPSS; IBM Corp. Armonk, NY), version 19.

The research project was presented to the Research Ethics Committee of the Universidade Estadual de Londrina, registered under number 23246919.9.0000.5231 and approved by opinion 3,698,448, published on November 11, 2019.

RESULTS

At the end of the study, 231 physicians and nurses working in the field of intensive care completed the questionnaire. Among them, 87.4% self-reported as intensivist physicians or nurses. The majority worked exclusively in ICUs (74.0%), in more than one unit (55.8%) and for more than 10 years in this sector (62.8%). Eighty-eight of the 231 (38.3%) were technical coordinators, and 109 were the day care intensivist (47.4%) (Table 1).

Table 1
Demographic, educational and professional characteristics of the participants

Regarding the profile of the institution, 50.6% were public, 22.6% were private, and 26.8% were mixed. The largest number was located in the Southeast (87; 37.7%), while 14 (6.1%) were in the North. Of the total, 66.7% were ICUs in cities with more than 500,000 inhabitants, 79.7% of the hospitals had more than 50 general beds, and 62.8% were university hospitals. Most of these institutions did not have semi-intensive care services (179; 77.5%) or a Rapid Response Team (135; 58.4%), but the majority had organ donation teams (143; 62.4%). Most ICUs had established clinical protocols (194; 84.3%) (Table 2).

Table 2
Profile of the institutions participating in the study

In these services, the request for a vacancy in the ICU was made by the patient’s attending physician (74; 32.2%) or by a physician in the emergency department (69; 30.0%). The request was usually electronic (107; 46.3%) or verbal (86; 37.2%). In 40.3% of the cases, participants reported that the institution had never promoted general refresher courses or classes, and 71.3% responded that they had never participated in courses or classes on bed triage.

According to the perception of the participants, more than 90% of their beds were always (48.4%) or frequently (42.2%) occupied, and 195 (84.4%) reported having failed to admit patients to the unit due to capacity. This occurred daily for 54 (23.4%) of them. Patients who were waiting for intensive care beds were often in the hospital emergency room (158; 69.3%) under the care of the sector team (117; 50.6%). The waiting time outside the ICU was variable - from less than 6 hours to more than 24 hours - and there was a similar proportion in the responses obtained (Table 3). The units with bed occupancy rates greater than 90% most of the time were public or mixed ICUs. In these institutions, the frequency of non-admission was higher. The frequency of more than one patient waiting for a bed outside the ICU was also higher, as was the waiting time outside the ICU (Table 3).

Table 3
Waiting time for admission to intensive care units according to their occupancy rates

When asked if they had received guidance regarding the triage of intensive beds, most participants answered no - both for verbal guidance (60.6%) and for written or e-mail guidance (73.6%) (Table 1S - Supplementary material). Nevertheless, most knew the CFM (71.0%) and SCCM (53.2%) triage guidelines; 37.2% knew the WFSICCM guidelines.

Among the interviewees, 49.8% reported that there was no triage protocol established in the ICU. Among the 78 participants who reported having a protocol in place, 62 (79.4%) considered themselves familiar with this protocol, which was generally based on the CFM guidelines (39.0%) or was a protocol specific to the service (24.1%). Triage was the responsibility of the day care physician or ICU coordinator in 40.6% of cases. When there was no protocol, physicians based their decisions on the severity of the case (28.3%) or prognosis (20.4%). The following options obtained lower numbers of responses: chronological order of request, other factors, patient age, organ donation and underlying pathology.

When comparing data related to the presence of triage protocols with the number of general hospital beds, the number of inhabitants in the city, the fact that the hospital is a reference for other regions, the fact that the hospital is a teaching hospital, the location of the service in the various regions of the country and the public‒private nature of the ICU, no associations were found. There was an association between the presence of triage protocols and clinical protocols established in the ICU (p = 0.004). An association was also observed between the adoption of triage protocols and a higher frequency of more than one patient waiting for an ICU bed (Table 2S - Supplementary material). Specialists in intensive care medicine, certified by the Associação de Medicina Intensiva Brasileira (AMIB), technical coordinators or day care intensivists were more familiar with the triage guidelines of specialized societies (Table 3S - Supplementary material).

No associations were found between the profile of the institutions (presence of semi-intensive care unit, Rapid Response Team, availability of complementary exams or physical therapy) and the presence of triage protocols or triage guidelines and the location of the ICUs (North, Northeast, Central-West, Southeast and South).

In the public or mixed ICUs, failure to admit a patient due to unit capacity was more frequent, and the frequency of non-admission was also higher. In these institutions, the wait time of critically ill patients outside the ICU was also usually longer and was more common when more than one patient was waiting for a place in the intensive care unit (Table 4).

Table 4
Admission and triage in intensive care units according to their types of administration

In the multivariate analysis, the independent variables associated with the daily frequency of non-admission were the type of ICU (public, private or mixed), the fact that the hospital was a university hospital and a referral center (Table 5).

Table 5
Multinomial logistic regression analysis for factors associated with the frequency of non-admission due to lack of beds

DISCUSSION

The frequency of bed refusal due to the capacity of intensive care units is high in Brazilian hospitals, especially in public institutions, university hospitals and reference units for referrals. In agreement with this finding, the wait times of critically ill patients outside the ICU is also long. Approximately half of the Brazilian institutions participating in this study do not have triage protocols for intensive care admissions. The findings of this study may have been influenced by the change in the health care structure that occurred during the COVID-19 pandemic. Although the questionnaire was administered 1 year after the onset of the pandemic, the incidence of cases in Brazil was still high, and this may have affected the results.(1414 Brasil. Ministério da Saúde. COVID-19 no Brasil. Disponível em: https://infoms.saude.gov.br/extensions/covid-19_html/covid-19_html.html.
https://infoms.saude.gov.br/extensions/c...
)

The presence of protocols is of crucial importance, as health professionals have low accuracy in predicting outcomes for critically ill patients, especially in acute clinical worsening and ICU request.(1515 Ramos JG, Forte DN. Responsabilidade pela razoabilidade e critérios de admissão, triagem e alta em unidades de terapia intensiva: uma análise das recomendações éticas atuais. Rev Bras Ter Intensiva. 2021;33(1):38-47.) Based on the results of the present study, it was possible to observe an association between the number of patients waiting for a vacancy and the adoption of triage protocols, possibly because the pressure of increased demand led to the need for better organization of the unit.

Among the units that have protocols, most are based on the CFM, and some have developed their own protocols. Authors suggest the standardization of triage with local protocols(1616 Myers LC, Escobar G, Liu VX. Goldilocks, the three bears and intensive care unit utilization: delivering enough intensive care but not too much. A narrative review. Pulm Ther. 2020;6(1):23-33.) based on the CFM, SCCM and WFSICCM.(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.

8 Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.
-99 Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
https://sistemas.cfm.org.br/normas/visua...
) However, even when a hospital has an established protocol, it is not always applied in clinical practice.(1717 Oerlemans AJ, Wollersheim H, van Sluisveld N, van der Hoeven JG, Dekkers WJ, Zegers M. Rationing in the intensive care unit in case of full bed occupancy: a survey among intensive care unit physicians. BMC Anesthesiol. 2016;16(1):25.) In the Netherlands, the results of an online questionnaire from 2016 showed that, even though they were familiar with it, only 47% of respondents reported that the established protocol was sufficient for decision-making.(1717 Oerlemans AJ, Wollersheim H, van Sluisveld N, van der Hoeven JG, Dekkers WJ, Zegers M. Rationing in the intensive care unit in case of full bed occupancy: a survey among intensive care unit physicians. BMC Anesthesiol. 2016;16(1):25.) Bed triage is one of the most stressful aspects of ICU work.(1818 Robert R, Reignier J, Tournoux-Facon C, Boulain T, Lesieur O, Gissot V, Souday V, Hamrouni M, Chapon C, Gouello JP; Association des Réanimateurs du Centre Ouest Group. Refusal of intensive care unit admission due to a full unit: impact on mortality. Am J Respir Crit Care Med. 2012;185(10):1081-7.)

Several studies have shown that the availability of ICU beds affects the admission decision and triage of patients. In the United States, a 2014 study conducted in New York and a 2018 study in New Orleans agree in this regard.(1919 Orsini J, Blaak C, Yeh A, Fonseca X, Helm T, Butala A, et al. Triage of patients consulted for ICU admission during times of ICU-bed shortage. J Clin Med Res. 2014;6(6):463-8.,2020 Mathews KS, Durst MS, Vargas-Torres C, Olson AD, Mazumdar M, Richardson LD. Effect of emergency department and ICU occupancy on admission decisions and outcomes for critically ill patients. Crit Care Med. 2018;46(5):720-7.) In Tunisia, a 2018 publication showed that refusal due to lack of beds is a common occurrence.(2121 Bouneb R, Mellouli M, Dardouri M, Soltane HB, Chouchene I, Boussarsar M. Determinants and outcomes associated with decisions to deny intensive care unit admission in Tunisian ICU. Pan Afr Med J. 2018;29:176.) In Morocco, another country with an economy similar to Brazil, the general refusal rate is 35%, and the lack of beds is the main cause for this refusal.(2222 Louriz M, Abidi K, Akkaoui M, Madani N, Chater K, Belayachi J, et al. Determinants and outcomes associated with decisions to deny or to delay intensive care unit admission in Morocco. Intensive Care Med. 2012;38(5):830-7.) A study in Australia and New Zealand found values between 25 and 30% for refusal.(2323 Young PJ, Arnold R. Intensive care triage in Australia and New Zealand. N Z Med J. 2010;123(1316):33-46.) In Hong Kong, one publication reported 38% refusal,(2424 Joynt GM, Gomersall CD, Tan P, Lee A, Cheng CA, Wong EL. Prospective evaluation of patients refused admission to an intensive care unit: triage, futility and outcome. Intensive Care Med. 2001;27(9):1459-65.) whereas in a French multicenter study, this rate was 23%, and within this general percentage, only 6.5% were due to full units.(2525 Ramos JG, Ranzani OT, Dias RD, Forte DN. Impacto de fatores não clínicos nas decisões relacionadas à admissão em unidade de terapia intensiva: um ensaio randomizado com base em vinhetas (V-TRIAGE). Rev Bras Ter Intensiva. 2021;33(2):219-30.) Another European multicenter study found an overall refusal rate of 15%, and among the causes of refusal, 47% were due to lack of beds.(2626 Iapichino G, Corbella D, Minelli C, Mills GH, Artigas A, Edbooke DL, et al. Reasons for refusal of admission to intensive care and impact on mortality. Intensive Care Med. 2010;36(10):1772-9.)

In Brazil, Caldeira et al. analyzed 359 patients and observed a 30% refusal. The factors that influenced the decision were age and priority, according to the SCCM criteria.(2727 Caldeira VM, Silva Júnior JM, Oliveira AM, Rezende S, Araújo LA, Santana MR, et al. Critérios para admissão de pacientes na unidade de terapia intensiva e mortalidade. Rev Assoc Med Bras. 2010;56(5):528-34.) A Brazilian study by Rocco et al. showed a 44% refusal rate, with age, comorbidities and severity as determinants.(2828 Rocco JR, Soares M, Gago MF. Pacientes clínicos referenciados, mas não internados na unidade de terapia intensiva: prevalência, características clínicas e prognóstico. Rev Bras Ter Intensiva. 2006;18(2):114-20.)

The ICUs in the present study always had or frequently had high occupancy rates. These data agree with other data from Brazilian studies, such as a 2011 cohort study, in which the overall bed occupancy rate was 97.3%.(66 Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.) The World Health Organization (WHO) recommends that this rate be below 80% for intensive care units.(66 Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.)

The CFM, in Article 2 of its resolution that guides ICU admission, establishes that admission and discharge are the responsibility of the intensivist.(99 Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
https://sistemas.cfm.org.br/normas/visua...
) Data collected by this questionnaire show that the responsibility for refusing or triaging patients often lies with the daily physician or ICU coordinator, corroborating the specialized guidelines.

More than half of the participants reported never having received guidance regarding the triage of ICU beds where they worked. There are few national or international studies on the training of triage intensive beds in the literature. Training or receiving specific guidance can significantly change the choice of professional at the critical moment of triage. This choice is invariably difficult, and intensivists can carry the weight of this choice for a long time in their professional journey.(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.) Ramos et al. describe that having received training regarding triage promotes a higher classification of patient-related factors at the time of decision-making.(1010 Ramos JG, Passos RH, Baptista PB, Forte DN. Fatores potencialmente associados à decisão de admissão à unidade de terapia intensiva em um país em desenvolvimento: um levantamento de médicos brasileiros. Rev Bras Ter Intensiva. 2017;29(2):154-62.) The current questionnaire revealed that, even without specific training, many professionals reported knowledge of the guidelines regarding triage. The data collected indicate that, in Brazil, specialists in intensive care medicine are more knowledgeable about these guidelines when compared to nonspecialists.

Regarding the wait time outside the ICU, results with similar proportions appeared among all the alternatives proposed, from less than 6 hours to more than 24 hours. Cardoso et al. also found much variability in this aspect, with patients waiting for ICU beds in other sectors of the hospital from 2 hours to 3.5 days.(66 Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.)

In the present study, patients from public or mixed institutions waited longer for ICU admission than patients from private institutions. It was also evident that the most frequent occurrence is the occupation of more than 90% of the ICU beds and, consequently, refusal because of capacity in public hospitals, university hospitals and services that are references for referrals. It is reasonable to assume that this is associated with the known overload of patients requiring ICU beds in these units. Ramos et al. concluded that factors related to the shortage of beds were considered more relevant by physicians working in public ICUs (number of beds available, number of occupied operating rooms). In the private ICUs, management factors were more relevant for decision-making (pressure from the requesting physician and fear of lawsuits due to malpractice).(1010 Ramos JG, Passos RH, Baptista PB, Forte DN. Fatores potencialmente associados à decisão de admissão à unidade de terapia intensiva em um país em desenvolvimento: um levantamento de médicos brasileiros. Rev Bras Ter Intensiva. 2017;29(2):154-62.)

Most of the institutions where the interviewees in the present study worked did not have semi-intensive care services. A 2010 multicenter study showed that the availability of intermediate units improves the prognosis of critically ill patients.(2626 Iapichino G, Corbella D, Minelli C, Mills GH, Artigas A, Edbooke DL, et al. Reasons for refusal of admission to intensive care and impact on mortality. Intensive Care Med. 2010;36(10):1772-9.) In the same vein, both the CFM and SCCM guidelines, as well as those of the WFSICCM, warn about the importance of the semi-intensive care unit for the proper management of severe cases.(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.

8 Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.
-99 Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
https://sistemas.cfm.org.br/normas/visua...
) In addition, Rapid Response Teams play an important role in the evaluation and triage of patients waiting for intensive care units. In the presence of these teams, patients with higher severity scores and more comorbidities are more often admitted to the ICU.(2929 Jäderling G, Bell M, Martling CR, Ekbom A, Bottai M, Konrad D. ICU admittance by a rapid response team versus conventional admittance, characteristics, and outcome. Crit Care Med. 2013;41(3):725-31.)

According to the guidelines of specialized societies, the possibility of organ donation is a factor that can change the priority of ICU admission.(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.

8 Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.
-99 Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
https://sistemas.cfm.org.br/normas/visua...
) Even so, this factor is a conflicting point in medical practice. A study showed that professionals tend to admit a patient with little chance of survival more often than a potential organ donor.(3030 Kohn R, Rubenfeld GD, Levy MM, Ubel PA, Halpern SD. Rule of rescue or the good of the many? An analysis of physicians’ and nurses’ preferences for allocating ICU beds. Intensive Care Med. 2011;37(7):1210-7.)

In the literature, 88% of the institutions have a triage protocol in place, but only 25% make regular use of the guidelines.(3131 Walter KL, Siegler M, Hall JB. How decisions are made to admit patients to medical intensive care units (MICUs): a survey of MICU directors at academic medical centers across the United States. Crit Care Med. 2008;36(2):414-20.) In the present study, there was an association between the presence of protocols for triage of critical beds and the presence of established clinical protocols. This finding demonstrates that the policy of establishing protocols is an important point in these services, both in the general clinic and in the intensive care environment. The protocol-based work policy improves patient outcomes.(77 Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.,88 Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.)

The strength of this study derives from its wide coverage of the national territory in a highly relevant topic regarding the refusal and triage of ICU beds, considering the shortage of beds in most of the country. The limitation of the survey design with the application of a structured questionnaire is the restriction of access to data from the ICUs evaluated by the study. The information collected on structural and institutional issues was based on the perceptions of the research participants, not on direct observations. It is also possible that more than one participant responded about the same institution, leading to a greater representation of this institution in the survey results. Another limitation of the study was the fact that the sample was nonrandom and, therefore, may not be representative of the entire country. There may have been a recall bias in the responses to the questionnaire, a limitation inherent to the type of design. However, such a design can be considered adequate for the initial investigation of the scientific question.

CONCLUSION

Refusal of a bed in the intensive care unit due to the lack of capacity of the unit is frequent in Brazilian intensive care units. The decision falls, in most cases, on the physicians on duty and the day care worker/coordinator of the intensive care unit. Many services in Brazil do not have an intensive care unit bed triage system. In addition, most physicians working in intensive care units do not receive training regarding triage criteria or methods.

ACKNOWLEDGMENTS

The present study was conducted with the support of AMIBnet, the clinical research and scientific development network of the Associação de Medicina Intensiva Brasileira.

REFERÊNCIAS

  • 1
    Silva AC, Porto F. Custos das diárias de unidade de terapia intensiva no Sistema Único de Saúde na COVID-19. J Manag Prim Health Care. 2020;12(spec).
  • 2
    Kim SH, Chan CW, Olivares M, Escobar GJ. Association among ICU congestion, ICU admission decision, and patient outcomes. Crit Care Med. 2016;44(10):1814-21.
  • 3
    Metcalfe MA, Sloggett A, McPherson K. Mortality among appropriately referred patients refused admission to intensive-care units. Lancet. 1997;350(9070):7-11.
  • 4
    Sprung CL, Geber D, Eidelman LA, Baras M, Pizov R, Nimrod A, et al. Evaluation of triage decisions for intensive care admission. Crit Care Med. 1999;27(6):1073-9.
  • 5
    Edbrooke DL, Minelli C, Mills GH, Iapichino G, Pezzi A, Corbella D, et al. Implications of ICU triage decisions on patient mortality: a cost-effectiveness analysis. Crit Care. 2011;15(1):R56.
  • 6
    Cardoso LT, Grion CM, Matsuo T, Anami EH, Kauss IA, Seko L, et al. Impact of delayed admission to intensive care units on mortality of critically ill patients: a cohort study. Crit Care. 2011;15(1):R28.
  • 7
    Nates JL, Nunnally M, Kleinpell R, Blosser S, Goldner J, Birriel B, et al. ICU admission, discharge, and triage guidelines: a framework to enhance clinical operations, development of institutional policies, and further research. Crit Care Med. 2016;44(8):1553-602.
  • 8
    Blanch L, Abillama FF, Amin P, Christian M, Joynt GM, Myburgh J, Nates JL, Pelosi P, Sprung C, Topeli A, Vincent JL, Yeager S, Zimmerman J; Council of the World Federation of Societies of Intensive and Critical Care Medicine. Triage decisions for ICU admission: Report from the Task Force of the World Federation of Societies of Intensive and Critical Care Medicine. J Crit Care. 2016;36:301-5.
  • 9
    Brasil. Conselho Federal de Medicina (CFM). Resolução CFM N° 2156/2016. Estabelece os critérios de admissão e alta em unidade de terapia intensiva. Publicada no Diário Oficial da União de 17 de novembro de 2016, seção I, p. 138-139. Disponível em: https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
    » https://sistemas.cfm.org.br/normas/visualizar/resolucoes/BR/2016/2156
  • 10
    Ramos JG, Passos RH, Baptista PB, Forte DN. Fatores potencialmente associados à decisão de admissão à unidade de terapia intensiva em um país em desenvolvimento: um levantamento de médicos brasileiros. Rev Bras Ter Intensiva. 2017;29(2):154-62.
  • 11
    Pellegrini JA, Cordioli RL, Grumann AC, Ziegelmann PK, Taniguchi LU. Poin-of-care ultrasonography in Brazilian intensive care units: a national survey. Ann Intensive Care. 2018;8(1):50.
  • 12
    Marques JB, Freitas D. Método DELPHI: caracterização e potencialidades na pesquisa em educação. Pro-Posições. 2018;19(2):389-415.
  • 13
    Burns KE, Duffett M, Kho ME, Meade MO, Adhikari NK, Sinuff T, Cook DJ; ACCADEMY Group. A guide for the design and conduct of self-administered surveys of clinicians. CMAJ. 2008;179(3):245-52.
  • 14
    Brasil. Ministério da Saúde. COVID-19 no Brasil. Disponível em: https://infoms.saude.gov.br/extensions/covid-19_html/covid-19_html.html
    » https://infoms.saude.gov.br/extensions/covid-19_html/covid-19_html.html
  • 15
    Ramos JG, Forte DN. Responsabilidade pela razoabilidade e critérios de admissão, triagem e alta em unidades de terapia intensiva: uma análise das recomendações éticas atuais. Rev Bras Ter Intensiva. 2021;33(1):38-47.
  • 16
    Myers LC, Escobar G, Liu VX. Goldilocks, the three bears and intensive care unit utilization: delivering enough intensive care but not too much. A narrative review. Pulm Ther. 2020;6(1):23-33.
  • 17
    Oerlemans AJ, Wollersheim H, van Sluisveld N, van der Hoeven JG, Dekkers WJ, Zegers M. Rationing in the intensive care unit in case of full bed occupancy: a survey among intensive care unit physicians. BMC Anesthesiol. 2016;16(1):25.
  • 18
    Robert R, Reignier J, Tournoux-Facon C, Boulain T, Lesieur O, Gissot V, Souday V, Hamrouni M, Chapon C, Gouello JP; Association des Réanimateurs du Centre Ouest Group. Refusal of intensive care unit admission due to a full unit: impact on mortality. Am J Respir Crit Care Med. 2012;185(10):1081-7.
  • 19
    Orsini J, Blaak C, Yeh A, Fonseca X, Helm T, Butala A, et al. Triage of patients consulted for ICU admission during times of ICU-bed shortage. J Clin Med Res. 2014;6(6):463-8.
  • 20
    Mathews KS, Durst MS, Vargas-Torres C, Olson AD, Mazumdar M, Richardson LD. Effect of emergency department and ICU occupancy on admission decisions and outcomes for critically ill patients. Crit Care Med. 2018;46(5):720-7.
  • 21
    Bouneb R, Mellouli M, Dardouri M, Soltane HB, Chouchene I, Boussarsar M. Determinants and outcomes associated with decisions to deny intensive care unit admission in Tunisian ICU. Pan Afr Med J. 2018;29:176.
  • 22
    Louriz M, Abidi K, Akkaoui M, Madani N, Chater K, Belayachi J, et al. Determinants and outcomes associated with decisions to deny or to delay intensive care unit admission in Morocco. Intensive Care Med. 2012;38(5):830-7.
  • 23
    Young PJ, Arnold R. Intensive care triage in Australia and New Zealand. N Z Med J. 2010;123(1316):33-46.
  • 24
    Joynt GM, Gomersall CD, Tan P, Lee A, Cheng CA, Wong EL. Prospective evaluation of patients refused admission to an intensive care unit: triage, futility and outcome. Intensive Care Med. 2001;27(9):1459-65.
  • 25
    Ramos JG, Ranzani OT, Dias RD, Forte DN. Impacto de fatores não clínicos nas decisões relacionadas à admissão em unidade de terapia intensiva: um ensaio randomizado com base em vinhetas (V-TRIAGE). Rev Bras Ter Intensiva. 2021;33(2):219-30.
  • 26
    Iapichino G, Corbella D, Minelli C, Mills GH, Artigas A, Edbooke DL, et al. Reasons for refusal of admission to intensive care and impact on mortality. Intensive Care Med. 2010;36(10):1772-9.
  • 27
    Caldeira VM, Silva Júnior JM, Oliveira AM, Rezende S, Araújo LA, Santana MR, et al. Critérios para admissão de pacientes na unidade de terapia intensiva e mortalidade. Rev Assoc Med Bras. 2010;56(5):528-34.
  • 28
    Rocco JR, Soares M, Gago MF. Pacientes clínicos referenciados, mas não internados na unidade de terapia intensiva: prevalência, características clínicas e prognóstico. Rev Bras Ter Intensiva. 2006;18(2):114-20.
  • 29
    Jäderling G, Bell M, Martling CR, Ekbom A, Bottai M, Konrad D. ICU admittance by a rapid response team versus conventional admittance, characteristics, and outcome. Crit Care Med. 2013;41(3):725-31.
  • 30
    Kohn R, Rubenfeld GD, Levy MM, Ubel PA, Halpern SD. Rule of rescue or the good of the many? An analysis of physicians’ and nurses’ preferences for allocating ICU beds. Intensive Care Med. 2011;37(7):1210-7.
  • 31
    Walter KL, Siegler M, Hall JB. How decisions are made to admit patients to medical intensive care units (MICUs): a survey of MICU directors at academic medical centers across the United States. Crit Care Med. 2008;36(2):414-20.

Edited by

Responsible editor: Leandro Utino Taniguchi

Data availability

Publication Dates

  • Publication in this collection
    03 Mar 2023
  • Date of issue
    Oct-Dec 2022

History

  • Received
    26 July 2022
  • Accepted
    27 Nov 2022
Associação de Medicina Intensiva Brasileira - AMIB Rua Arminda, 93 - Vila Olímpia, CEP 04545-100 - São Paulo - SP - Brasil, Tel.: (11) 5089-2642 - São Paulo - SP - Brazil
E-mail: rbti.artigos@amib.com.br