SciELO - Scientific Electronic Library Online

vol.71 issue6Predictive factors of the interruption of exclusive breastfeeding in premature infants: a prospective cohortExperience of adults with cystic fibrosis: a perspective based on social phenomenology author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Enfermagem

Print version ISSN 0034-7167On-line version ISSN 1984-0446

Rev. Bras. Enferm. vol.71 no.6 Brasília Nov./Dec. 2018 


Clinical-epidemiological aspects of patients submitted to Percutaneous Coronary Intervention in a university hospital

Aspectos clínico-epidemiológicos de pacientes sometidos a la Intervención Coronaria Percutánea en un hospital universitario

Maria Solange Moreira de LimaI 

Rodrigo Assis Neves DantasI 

Neyse Patrícia do Nascimento MendesI 

Louise Constância de Melo AlvesI 

Tamara Taynah Medeiros da SilvaI 

Andréa Gomes da Rocha BritoI 

Daniele Vieira DantasI 

IUniversidade Federal do Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil.



To outline the clinical-epidemiological profile of patients submitted to Percutaneous Coronary Intervention in a Reference Hospital in Urgent Cardiology Clinic of the state of Rio Grande do Norte.


This is a descriptive, exploratory, prospective study with a quantitative approach developed in a Brazilian University Hospital with patients submitted to Percutaneous Coronary Intervention. Data collection occurred between April and October 2017.


The sample consisted of 222 patients, of whom 58.10% underwent Elective Percutaneous Coronary Intervention and 41.89% were primary, 65.3% males, with a mean age of 62.7. In comorbidities “Hypertension”, “Acute Myocardial Infarction”, “Current Smoking” and “Physical Inactivity” were highlighted.


In the elective patients, there was a high prevalence of risk factors and in patients with urgent cases, high time of total ischemia. It is necessary to create strategies to structure the care line, to improve the effectiveness of treatment and to minimize adverse outcomes.

Descriptors: Cardiovascular Diseases; Myocardial Infarction; Percutaneous Coronary Intervention; Angioplasty; Risk Factors



Trazar el perfil clínico-epidemiológico de los pacientes sometidos a la Intervención Coronaria Percutánea en un Hospital de referencia en urgencia cardiológica del estado de Rio Grande do Norte.


Se trata de un estudio descriptivo, exploratorio, prospectivo con abordaje cuantitativo, desarrollado en un Hospital Universitario brasileño con pacientes sometidos a la Intervención Coronaria Percutánea. La recolección de datos ocurrió entre abril y octubre de 2017.


La muestra compuesta por 222 pacientes. De esos, 58,10% fueron sometidos a la Intervención Coronaria Percutánea electiva y el 41,89% a la primaria, el 65,3% del sexo masculino; la media de edad fue de 62,7. En las comorbilidades, se destacaron Hipertensión Arterial Sistémica, Infarto Agudo de Miocardio previo, tabaquismo actual y sedentarismo.


En los pacientes electivos, hubo alta prevalencia de factores de riesgo y en los pacientes de urgencia, elevado tiempo de isquemia total. Se hace necesario la creación de estrategias para estructurar la línea de cuidado, mejorar la eficacia del tratamiento y minimizar los resultados adversos.

Descriptores: Enfermedades Cardiovasculares; Infarto de Miocardio; Intervención Coronaria Percutánea; Angioplastia; Factores de Riesgo



Traçar o perfil clínico-epidemiológico dos pacientes submetidos à Intervenção Coronária Percutânea em um Hospital de referência em urgência cardiológica do estado do Rio Grande do Norte.


Trata-se de um estudo descritivo, exploratório, prospectivo, com abordagem quantitativa, desenvolvido em um Hospital Universitário brasileiro com pacientes submetidos à Intervenção Coronária Percutânea. A coleta de dados ocorreu entre abril e outubro de 2017.


Amostra composta por 222 pacientes, destes, 58,10% foram submetidos à Intervenção Coronária Percutânea eletiva e 41,89% à primária, 65,3% do sexo masculino, com média de idade de 62,7. Nas comorbidades, destacaram-se “Hipertensão Arterial Sistêmica”, “Infarto Agudo do Miocárdio Prévio”, “Tabagismo Atual” e “Sedentarismo”.


Nos pacientes eletivos, houve alta prevalência de fatores de risco e nos pacientes da urgência, elevado tempo de isquemia total. Faz-se necessário a criação de estratégias para estruturar a linha de cuidado, melhorar a eficácia do tratamento e minimizar os desfechos adversos.

Descritores: Doenças Cardiovasculares; Infarto do Miocárdio; Intervenção Coronária Percutânea; Angioplastia; Fatores de Risco


Cardiovascular Diseases (CVD) are the leading cause of death in Brazil and worldwide. According to the World Health Organization (WHO)(1) in 2015, about eight million people died of ischemic heart disease. In Brazil, from 2004 to 2014, 8.80% of all deaths were caused by ischemic heart diseases, including Coronary Heart Disease (CHD), which includes Acute Coronary Syndromes. The increasing number of these diseases is an expressive public health problem(2-3).

Acute Coronary Syndromes (ACS) can be understood as an imbalance between supply and consumption of oxygen that can result in myocardial necrosis if there is no immediate intervention. The main etiology of ACS is the rupture of atherosclerotic plaque followed by thrombosis, which may result in partial or total occlusion of a coronary artery(4).

The diagnosis of SCA is based on clinical findings, results of biochemical markers, electrocardiogram analysis, as well as through the Cardiac Catheterization and Coronary Angiography, an invasive diagnostic method that identifies the presence, extent, and severity of coronary atherosclerotic disease. Therefore, the therapeutic approach aims to stabilize the patient and minimize myocardial damage through reperfusion, either through the use of pharmacological therapy with thrombolytics or through invasive treatment through Percutaneous Coronary Intervention (PCI)(4-5).

PCI is a procedure performed through the insertion of catheters through an arterial access path that has the purpose of remodeling the atherosclerotic plaque and alleviating the stenosis of the vessel. Currently, PCI associated with stent implantation (metal structures that are positioned in the injured area with the objective of maintaining arterial power and restoring blood flow) is the main form of myocardial revascularization, since PCI can reestablish coronary flow in about 90% of patients(4,6).

It is known that the Brazilian population profile has changed in recent years, resulting in an increase in life expectancy and consequently in a relevant increase in the elderly population, which is predominantly more subject to PCI. They are often male, elderly, low schooling, and multiple associated risk factors(7).

The Brazilian Unified Health System (SUS - Sistema Único de Saúde) is responsible for performing about 80% of PCI in Brazil and Onofre Lopes University Hospital (HUOL - Hospital Universitário Onofre Lopes), is the only public institution in Rio Grande do Norte State, reference in the care line for patients with acute myocardial infarction(8).

In this context, it is questioned: What are the epidemiological and clinical aspects of the patients submitted to Percutaneous Coronary Intervention served at a Reference Hospital in Urgent Cardiology Clinic of Rio Grande do Norte State?

In view of the above, the following objectives were elaborated: To outline the epidemiological and clinical profile of the patients submitted to Percutaneous Coronary Intervention in a Reference Hospital in Urgent Cardiology Clinic of Rio Grande do Norte State; To characterize the sociodemographic aspects of patients submitted to Percutaneous Coronary Intervention in an elective and urgent manner; To identify the clinical aspects and associated comorbidities, and describe the outcome of the patient’s recovery after PCI.


To outline the epidemiological and clinical profile of patients submitted to Percutaneous Coronary Intervention in a Reference Hospital in Urgent Cardiology Clinic in Rio Grande do Norte State; To characterize the sociodemographic aspects of patients submitted to Percutaneous Coronary Intervention in an elective and urgent manner; Identify the clinical aspects and associated comorbidities and describe the outcome of the patient regarding their recovery after PCI.


Ethical aspects

Assuming that the research involved human beings, it followed Resolution 466 of December 12, 2012, of the National Health Council (Conselho Nacional de Saúde)(9). In addition, it was pointed out that prior authorization was obtained from the institution for data collection and the project was approved by the Research Ethics Committee of the Onofre Lopes University Hospital (HUOL - Hospital Universitário Onofre Lopes) of Natal/RN.

Design, place of study and period

This is a descriptive, exploratory, quantitative approach and prospective data. For the definition of the sample, a simple random sample of probabilistic type was used and for convenience. Based on the number of procedures performed in 2015, the sample was calculated, with a tolerable error of 5%, reaching a sample of 222 patients.

Data were collected between April and October 2017 in the Hemodynamics, Cardiology Unit and Intensive Care Units.

Population or sample; criteria of inclusion and exclusion

The HUOL was selected because it is currently the only public reference institution to meet the demand of patients with St-Elevation Myocardial Infarction (STEMI). According to the established flow, after first attendance and diagnosis in institutions that are open door or through the Brazilian Emergency Medical Services (SAMU - Serviço de Atendimento Móvel de Urgência), followed by the initial care that is constituted by the administration of adjuvant therapy and election of the strategy of reperfusion that depends on the availability and experience of each center, the institution contacts the HUOL Hemodynamics sector and performs the regulation, after confirming the diagnosis by the cardiologist-hemodynamicist. Having confirmed the ICU bed from the rear, the patient is referred to perform the Cardiac Catheterization and Coronary Angiography and primary PCI. In addition, HUOL is the largest teaching hospital in the RN and is aimed at training professionals in medicine, dentistry, nutrition, pharmacy, nursing, among other areas(10).

Inclusion criteria were patients older than 18 years and the signing of the Informed Consent Term. Patients who died during the procedure were excluded from the study.

Study protocol

The data were collected through the computerized and printed medical record, being recorded in a previously prepared tool. The following variables were selected for the analysis: demographic data (event date, gender, schooling, ethnicity, marital status, age, origin, occupation, income); clinical aspects and comorbidities (nature of the event, time of pain, changes in electrocardiogram, medications used in the emergency, hypertension, diabetes, previous history of infarction, previous cerebrovascular accident, previous revascularization surgery, smoking, Physical Inactivity; aspects of the procedure (puncture site, treated coronary arteries, stents used) and evolution aspects (discharge to the ward or discharge to the ICU).

For this study, door-to-balloon time was considered as the time variation between the first contact with a health service and the balloon inflation in the hemodynamic room, as well as the Primary PCI, such as the use of a catheter balloon to reestablish coronary flow, without previous use of fibrinolytics. Regarding adjuvant therapy, the registry of the administration of antiplatelet therapy, antithrombotics, nitrates, analgesia and oxygen therapy was considered(11).

Analysis of results and statistics

The data were categorized into an Excel spreadsheet and imported into the Statistical Package for the Social Sciences (SPSS) (version 22.0 for Windows), in which they were tabulated and analyzed from descriptive and inferential statistics, and presented in the form of tables.

In the statistical analysis, the significance level of 5% was used for all statistical tests (p <0.05). To describe the epidemiological profile of patients submitted to PCI, a descriptive analysis of the data was conducted, using central (mean and median) and dispersion (standard deviation) measures for the numerical variables, while the categorical variables were measured by the frequency of occurrences.

The Kolmogorov-Sminorv test was used to evaluate if the numerical variables present a normal distribution and consequently to define the inferential statistics, which indicated an asymmetric distribution of the data (p <0.05). Therefore, the Mann-Whitney test (U) was used to compare the numerical variables of patients submitted to elective and emergency PCI. In addition, Pearson’s Chi-square test was used to verify associations between the intervention modalities (urgency and elective) and variables of clinical aspects, comorbidities, risk factors, medication in use, PCI characteristics and recovery. X2).


A total of 222 patients were included in the study, of whom 58.10% underwent Elective Percutaneous Coronary Intervention and 41.89% were primary PCI. Regarding the origin of the patients, the regulation of Hospitals of all regions of the State prevailed with 85 (38.3%), followed by Emergency Care Units (UPA - Unidades de Pronto Atendimento), residences of the state capital and residences of the countryside of the State, 68 (30.6%), 37 (16.7%), 32 (14.5%), respectively.

In Table 1, 65.3% of the patients were men, the mean age was 62.7 (± 11.7) and the brown population prevailed, with 52.7% patients. Table 1 and 2 describe the main demographic and socioeconomic characteristics, respectively.

Table 1 Demographic characteristics of patients submitted to Percutaneous Coronary Intervention, Natal, Rio Grande do Norte, Brazil, 2017 

General sample(n = 222) Elective PCI (n = 129) Primary PCI(n = 93)
Age (years) Mean ± SD 62.77±11.78 63.58±11.30 61.64±12.39
Male, n (%) 145 (65.3) 85 (65.3) 60 (64.5)
Female, n (%) 77 (34.7) 44 (34.1) 33 (35.5)
Age group
> 40 years, n (%) 5 (2.3) 3 (2.3) 2 (2.2)
40 - 50 years, n (%) 22 (9.9) 9 (7.0) 13 (14.0)
50 - 60 years, n (%) 59 (26.6) 35 (27.1) 24 (25.8)
60 - 70 years, n (%) 72 (32.4) 43 (33.3) 29 (31.2)
70 - 80 years, n (%) 49 (22.1) 32 (24.8) 17 (18.3)
≥ 80 years, n (%) 15 (6.8) 7 (5.4) 8 (8.6)
White, n (%) 59 (26.6) 38 (29.5) 21 (22.6)
Black, n (%) 44 (19.8) 26 (20.2) 18 (19.4)
Brown, n (%) 117 (52.7) 64 (49.6) 53 (57.0)
Yellow, n (%) 2 (0.9) 1 (0.8) 1 (1.1)

Note: SD: Standard Deviation; PCI: Percutaneous Coronary Intervention.

Table 2 Socioeconomic characteristics of patients undergoing Percutaneous Coronary Intervention, Natal, Rio Grande do Norte, Brazil, 2017 

General sample(n= 222) Elective PCI(n = 129) Primary PCI (n = 93)
Non-literate, n (%) 66 (29.7) 35 (27.1) 31 (33.3)
1st Incomplete degree , n (%) 71 (32.0) 45 (34.9) 26 (28.0)
1st Complete degree, n (%) 35 (15.8) 20 (15.5) 15 (16.1)
2nd Incomplete degree, n (%) 4 (1.8) 2 (1.6) 2 (2.2)
2nd Complete degree, n (%) 37 (16.7) 24 (18.6) 13 (14.0)
Incomplete higher education, n (%) 3 (1.4) 1 (0.8) 2 (2.2)
Complete higher education, n (%) 6 (2.7) 2 (1.6) 4 (4.3)
Marital Status
Single, Widow (er) or Divorced, n (%) 80 (36.0) 46 (35.7) 34 (36.6)
Married, n (%) 142 (64.0) 83 (64.3) 59 (63.4)
Total income per residence (minimum wage)*
< 1 minimum wage, n (%) 33 (14.9) 21 (16.3) 12 (12.9)
1 - 3 minimum wages, n (%) 170 (76.6) 97 (75.2) 73 (78.5)
> 3 minimum wages, n (%) 19 (8.6) 11 (8.5) 8 (8.6)
Other occupations/ poorly defined, n (%)** 115 (51.8) 70 (54.3) 45 (48.4)
Provision of Services, n (%) 31 (14.0) 19 (14.7) 12 (12.9)
Agricultural and livestock, extractive plant and animal production, n (%) 22 (9.9) 10 (7.8) 12 (12.9)
Manufacturing Industries and civil construction, n (%) 15 (6.8) 7 (5.4) 8 (8.6)
Technical, scientific, artistic and similar, n (%) 10 (4.5) 3 (2.3) 7(7.5)
Trade and assistance activities, n (%) 11 (5.0) 9 (7.0) 2 (2.2)
Transportation and communication, n (%) 11 (5.0) 5 (3.9) 6 (6.5)
Administrative, n (%) 5 (2.3) 4 (3.1) 1 (1.1)
National defense and public safety, n (%) 1 (0.5) 1 (0.8) -
Unemployed, n (%) 1 (0.5) 1 (0.8) -



**Housewives, students, retirees, pensioners, self-employed and sex workers; PCI: Percutaneous Coronary Intervention.

It is worth noting the level of schooling (Table 2), where the number of non-literate and incomplete elementary students was 29.7% and 32%, respectively. 64.0% were married, 76.6% had income from one to three minimum wages and 51.8% were in other occupations/poorly defined.

All patients regulated by the care line underwent adjuvant therapy. In relation to the door-to-balloon time (Table 3), 11.8% reached the time less than 90 minutes, being the shortest time, 1 hour and the largest, 48 hours.

Table 3 Numerical indicators of the door-to-balloon time related to the electrocardiogram, Natal, Rio Grande do Norte, Brazil, 2017 

Primary PCI (n= 93)
Door-to-balloon time
< 90 minutes, n (%) 11 (11.8)
91 - 360 minutes, n (%) 24 (25.8)
361 - 720 minutes, n (%) 40 (43.0)
> 720 minutes, n (%) 18(19.4)
ECG wth/ ST, n (%) 65 (69.9)
ECG wth/ ST + enzymes, n (%) 28 (30.1)

Note: PCI: Percutaneous Coronary Intervention; ECG: electrocardiogram.

The clinical characteristics are summarized in Table 4. All the patients presented antecedents, independent of the accomplishment of the PCI in elective character or urgency. However, only “Hypertension” (HT) comorbidity presented a meaningful association (p= 0.00) among patients submitted to PCI on an emergency and elective basis, 68.8% and 88.4%, respectively. These data, based on the Chance Factor, indicate that the possibility for elective patients to be affected by HT was 3.45 higher than for those submitted to primary PCI.

Table 4 Clinical characteristics of patients submitted to Percutaneous Coronary Intervention on an elective and urgent basis, Natal, Rio Grande do Norte, Brazil, 2017 

Elective PCI (n = 129) Primary PCI (n = 93) pvalue
Hypertension, n (%) 114(88.4) 64 (68.8) 0.00a.b
Diabetes Mellitus, n (%) 50 (38.8) 35 (37.6) 0.489b
Acute Myocardial Infarction, n (%) 71 (55.0) 20 (21.5) 0.00a.b
Coronary Artery Bypass Surgery, n (%) (anterior), n (%) 5 (3.9) 0 (0.0) 0.064b
Stroke, n (%) 8 (6.2) 7 (7.5) 0.789b
BMI of adult patients 0.248b
Overweight, n (%) 19 (40.4) 19 (48.7)
Obesity, n (%) 9 (19.2) 8 (20.5)
BMI of elderly patients 0.575b
Overweight (levels 1, 2 and 3), n (%) 34 (41.5) 23 (42.6)
Family History, n (%) 47 (36.4) 38 (40.9) 0.298b
Life Habits
Alcoholism, n (%) 29 (22.5) 19 (20.4) 0.422b
Current Smoking, n (%) 31 (24.0) 32 (34.4) 0.06b
Previous Smoking, n (%) 35 (27.1) 23 (24.7) 0.404b
Physical Inactivity, n (%) 119 (92.2) 83 (89.2) 0.295b
Physical Activity, n (%) 10 (7.8) 10 (10.8) 0.295b


ap <0.05;

bp-value for Pearson’s Chi-square; PCI: Percutaneous Coronary Intervention.

It was also identified that the “Current Smoking” factor had a marginally meaningful association (p = 0.06), and tobacco use was more frequent in patients with urgent cases when compared to the electives (34.4% vs. 24.0%).

Regarding the angiographic characteristics, the type of stent variable had a meaningful association between patients submitted to PCI on an emergency and elective basis (p = 0.002), the conventional one being the most used in emergency procedures 57.0%, while in the electives, pharmacological use 61.2%. In addition, the Chance Factor of an elective patient receiving pharmacological stent is 2.74 times greater than a patient attended on an emergency basis. For this calculation, patients who received stents of both types (Table 5) were excluded.

Table 5 Angiographic and procedure characteristics, Natal, Rio Grande do Norte, Brazil, 2017 

Elective PCI (n = 129) Primary PCI (n = 93) pvalue
Stents 0.00a.b
Conventional, n (%) 43 (33.3) 53 (57.0)
Pharmacological, n (%) 79 (61.2) 36 (38.7)
Conventional and pharmacological, n (%) 7 (5.4) 4 (4.3)
Number of Stents 0.33b
One, n (%) 86 (66.7) 54 (58.0)
Two, n (%) 30 (23.3) 30 (32.3)
Three or more, n (%) 13 (10.0) 9 (9.7)
Coronary artery treated 0.26b
Right Coronary Artery, n (%) 38 (29.5) 28 (30.1)
Circumflex Artery, n (%) 13 (10.1) 12 (12.9)
Mid Left Anterior Descending Artery, n (%) 47 (36.4) 39 (41.9)
Others n (%) 12 (9.3) 2 (2.2)
More than one treated, n (%) 19 (14.7) 12 (12.9)
Punction site 0.10b
Radial 41 (32.0) 38 (40.9)
Femoral 83 (64.8) 55 (59.1)
Brachial 4 (3.1) 0 (0.0)
Percentage of injury (mean ± SD) 89.43±9.57 97.53±6.02 0.00a.c
Complications, n (%) 8 (6.2) 8 (8.6) 0.33b
Recovery 0.00a.b
Nursing, n (%) 106 (82.2) 0 (0.0)
Intensive Care Unit, n (%) 23 (17.8) 93 (100.0)

Note: Own research; p < 0.05;

bp-value for Pearson’s Chi-square; cp-value for the Mann-Whitney test; SD: Standard Deviation; PCI: Percutaneous Coronary Intervention.

Regarding the percentage of the lesion, a meaningful difference was identified (U = 1982.5; p = 0.00). Patients submitted to emergency PCI had a meaningfully higher lesion than the elective ones (97.53 versus 89.43). Regarding recovery, we identified an important association between patients submitted to primary and elective PCI, and the recovery modality of these patients (p = 0.00), indicating a high effect of association between the outcome and the mode of care (Cramer’s V of 0.80, p = 0.00). These data indicate that primary PCI is strongly related to the consequent hospitalization in the Intensive Care Unit (Table 5).


In this study, male patients prevailed (65.3%). As for females, the percentage of 34.7% of the total sample was found. Of these, 93.6% were older than 50 years. Analyzes conducted in the UK with 1,271 patients found that 79.5% were males and 20.5% females, in view of this, the comparative study shows that 48.1% of the female population had age group over 70 years, whereas in men this percentage was only 28.6%(12).

Thus, research indicates that cardiovascular events in women have a lower incidence, probably due to the protective function of estradiol. However, the sudden decrease in estrogen levels in the postmenopausal period is associated with a high cardiovascular risk(13).

In the population of this study, low education and income, marital status, brown and in relation to the profession predominated, 51.8% were among other occupations/poorly defined. Research performed at a Hospital in the Northwest Region of Rio Grande do Sul State also showed low schooling, since 72.9% had incomplete elementary school and 6.3% were not literate. In addition, the same study stated that 58.3% receive less than 3 minimum wages per month, 70.8% were married, 37.5% retired and 83.3% are white(13).

According to the Brazilian Institute of Geography and Statistics (IBGE - Instituto Brasileiro de Geografia e Estatística)(14), the year 2016 showed that in the northeast of Brazil, approximately 26.4% of the population is white and 73% are blacks, while in the percentage of black-and-white-brown can reach 76.7% and 22.5%, respectively.

These divergences in the ethnicity/color indicator are possibly due to the regional difference in the surveys. Low socioeconomic conditions are related to the increased risk of Cardiovascular Diseases. In addition, studies indicate that Hypertension, Diabetes Mellitus, Smoking, Obesity and Alcoholism are more frequent in individuals of lower socioeconomic level, and schooling is one of the indicators of socioeconomic level that more satisfactorily correlates with the periodicity and intensity of risk factors cardiovascular(15).

The deluge for the effectiveness of reperfusion therapy in St-Elevation Myocardial Infarction is shown as an unfavorable prognostic predictor. In this study, it was observed that door-to-balloon time for PCI was extensive; countering what is considered the current Brazilian guideline for the treatment of St-Elevation Myocardial Infarction, in which the ideal door-to-balloon time should be less than 90 minutes. Such data can be justified due to the existence of only one center to meet all state demand, as well as the absence of care protocols, delay in diagnosis and little articulation between the various points of the care network(11,16).

In this study, a door-to-balloon time between 360-720 minutes prevailed (40%). Comparing with a study carried out in Southeast Asia with 1,268 patients, in which 16% had a 120 minute balloon port delay(17). Such research has shown that the main causes of delay were the delay in emergency service, atypical clinical presentation and unstable condition requiring stabilization, also affirming that these delays are the major causes of death.

Research in databases has shown that strategies for reducing door-to-balloon time are still performed in isolation, among the strategies, is the electrocardiogram in the prehospital care, early activation of the hemodynamic service and multiprofessional communication in the process of Percutaneous Coronary Intervention. In the city of Belo Horizonte/MG, a meaningful reduction (12.3% to 7.1%) in the mortality rate was observed, after the implantation of the AMI care line, with the integration of services, training for the professionals involved(18-19).

With respect to the comorbidities presented by the patients in the present study, there was prevalence of Arterial Hypertension followed by Diabetes Mellitus. Corroborating our results, which showed a higher incidence of hypertension in women (88.3%) than in men (75.9%), an analysis of 2,426 patients in hospitals in South-East Asia demonstrated the prevalence of hypertension in 81.4% in women and 57.3% in men, and in Diabetes Mellitus in 65.6% of women and 43.6% in men(20).

Table 4 shows that the highest prevalence of previous Acute Myocardial Infarction (AMI) was in elective patients. A study(21) performed with 586 patients submitted to primary PCI, only 5.8% presented such comorbidity, being one of the factors responsible for possible PCI death. A national study developed in the United Kingdom pointed out that of 1,271 patients submitted to PCI, 54.5% between men and women already had previous MI(12).

As for the previous Coronary Artery Bypass Surgery (CABS), a prevalence of only 3.9% was observed in elective patients in the study population. Analysis of 5,664 patients from an Iranian Hospital showed that only 4% had undergone surgery(22). In the city of Porto Alegre/RS, 4% of 1,108 patients from the survey had this history of CABS(23).

Regarding Stroke, the percentage found in this study (6.7%) among elective and patients with urgent cases was higher than in other studies, which indicated percentages from 3.3% to 4.7%(12,19,24).

A survey conducted in a city of São Paulo State with 489 patients showed that 35.5% were overweight(24). Studies in Iran and Germany also showed that overweight was predominant in the patients analyzed(22,25). Another study conducted in Kuala Lumpur and Malaysia showed that of 28,472 patients analyzed, 43.8% were overweight and 36.6% were obese(26). A survey conducted in several hospitals in Japan showed that of 10,142 patients analyzed, 30.5% were overweight and 6.2% were obese(27). Similarly, Table 4 of this study shows that a meaningful number of adult patients were overweight and an important amount of obesity was observed in the elderly.

Family history is one more factor contributing to the manifestation of Cardiovascular Diseases, and in this study, there were a considerable number of patients with such comorbidity. Some authors confirm this data, revealing meaningful numbers of patients with Family History(12,21-22,24,26).

In the current study, Current Smoking is a relevant data, being one of the most present risk factors in patients with Cardiovascular Diseases, as it leads to an imbalance of prothrombotic antithrombotic factors(25). In the study in Bosnia and Herzegovina, of the 586 patients in the study, 64.7% smoked(21). In the United Kingdom, of 1,271, 65.4% are smokers(12). Many other studies have shown that a large proportion of patients undergoing PCI are active smokers(13,16,22-24). In the same way that the current smoker is more predisposed to having Cardiovascular Diseases, the former smoker is also a risk factor to be considered(15). Considering this, we observed in Table 4 considerable percentages in both elective and emergency patients, respectively 27.1% and 24.7%.

It can be observed in the results that 99.9% of the total number of patients was physically inactive. Therefore, studies(13) conducted confirm that the number of physically inactive patients in PCI is high, with 91.7% of the 48 patients analyzed. In addition, an analysis performed in the Northern region of Paraná State showed that 52.5% of patients submitted to PCI were physically inactive(28). Another study indicated that 71% of patients who underwent coronary angioplasty had Physical Inactivity(29).

A Brazilian study(24) with 489 patients submitted to PCI in the city of Marília, SP, showed a higher prevalence in the use of conventional stents (98.6%), contrary to what was found in the present study, which indicates greater use of stents of the pharmacological type when compared to the number of elective patients (61.2%). However, in relation to patients with urgent cases, it is still observed the predominant use of conventional stents (57%).

Analysis of 5,664 patients performed in Tehran, the main city of the Islamic Republic of Iran, the number of “one” stents predominated (71.3%)(22). These data corroborate with those found in Table 5, where the majority of elective and emergency patients received a stent. In relation to the treated coronary, the Mid Left Anterior Descending Artery (elective and urgency), followed by the Right Coronary Artery, predominated. Studies have confirmed that the most commonly treated coronary artery in patients performing PCI is the Mid Left Anterior Descending Artery and secondly the Right Coronary Artery(21-24).

The femoral artery was the most commonly used puncture site (Table 5), followed by the radial one. According to research done in Rio Grande do Sul State, the femoral route was more prevalent. However, a survey conducted in Bosnia and Herzegovina and another one conducted in the city of Marília - SP, the radial route predominated, respectively 70.8% and 94.3%(23-24). Analysis performed in the United States has shown that the radial approach is safer than the femoral approach, since they are less likely to cause complications, such as hemorrhage, hematoma formation, thrombophlebitis, ecchymosis and pseudoaneurysm(30).

Study limitations

This study has limitations because it is observational, unicentric and has a limited sample. In relation to the times used, the possibility of bias is admitted, since they were obtained through the records in medical records.

Contributions to the sectors of Nursing, Health or Public Policy

It is believed that papers of this nature can contribute, in particular, to the creation of strategies aimed at the prevention of these diseases, as well as collaborate in the formulation of health policies aimed at strengthening the quality of care offered, as well as to enable the implementation of the line of care that allows harm reduction, through the training of professionals and integration of services.


It is observed that there is a predominance of men, elderly, brown, married, with low level of education. Regarding the origin, the hospitals originated in all regions of the State, followed by the Emergency Care Units (Unidades de Pronto Atendimento), located in the metropolitan region. Individuals who underwent elective PCI had a high prevalence of risk factors and those who underwent PCI had a high time of ischemia. It is believed that the creation of strategies aimed at the prevention of these diseases, as well as the formulation of health policies that contemplate the structuring of the care line in the state and the strengthening of the quality of care offered through the integration of the various services of the network are to reduce future events, minimize adverse outcomes, and improve treatment efficacy.


1 Organização Mundial da Saúde-OMS. The top 10 causes of death[Internet]. 2017[cited 2017 Dec 07]. Available from: ]

2 Brasil. Ministério da Saúde. Plano Nacional de Saúde PNS 2016-2019[Internet]. 2016[cited 2016 Sep 03]. Available from: ]

3 Issa AFC, Oliveira GMM, Abreu LM, Rocha RM, Esporcatte R. MAC: Manual de Atualização e Conduta : Síndrome Coronariana Aguda (SCA). Rio de Janeiro: Planmark; 2015. [ Links ]

4 Guimarães HP, Lopes RD, Zazula AD, Berwanger O. Guia Prático de Síndromes Coronárias Agudas. São Paulo: Atheneu; 2013. [ Links ]

5 Araújo DF, Araújo ERM, Silva MRV, Silva NC, Guimarães MSO, Amorim Neta FL. Perfil clínico e epidemiológico de pacientes com síndrome coronariana aguda. Rev Enferm UFPI[Internet]. 2014[cited 2016 Sep 03];2(3):78-84. Available from: ]

6 Kuhn OT, Bueno JFB, Loro MM, Kolankiewicz ACB, Rosanelli CLSP, Winkelmann ER. Perfil de pacientes submetidos a cateterismo cardíaco e angioplastia em um Hospital Geral. Rev Contexto Saúde[Internet]. 2015[cited 2016 Sep 08];15(29):4-14. Available from: ]

7 Ferreira AG, Coelho Filho CD, Lourenço RA, Esporcatte R. A doença arterial coronariana e o envelhecimento populacional: como enfrentar esse desafio? Med HUPE-UERJ[Internet]. 2013[cited 2017 Jan 01];12(supl1):13-24. Available from: ]

8 Piegas LS, Haddad N. Intervenção coronariana percutânea no Brasil: resultados do Sistema Único de Saúde. Arq Bras Cardiol[Internet]. 2011[cited 2016 Oct 30];96(4):317-24. Available from: ]

9 Brasil. Conselho Nacional de Saúde. Resolução nº 466, de 12 de dezembro de 2012. Aprova diretrizes e normas regulamentadoras de pesquisas envolvendo seres humanos[Internet]. Diário Oficial[da] República Federativa do Brasil. 12 de dezembro, 2012[cited 2015 Apr 15]. Available from: ]

10 Hospital Universitário Onofre Lopes-HUOL. Infraestrutura[Internet]. Rio Grande do Norte. 2016[cited 2016 Sep 18]. Available from: ]

11 Piegas LS, Timerman A, Feitosa GS, Nicolau JC, Mattos LAP, Andrade MD, et al. V Diretriz da Sociedade Brasileira de Cardiologia sobre Tratamento do Infarto Agudo do Miocárdio com Supradesnível do Segmento ST. Arq Bras Cardiol[Internet]. 2015[cited 2017 Nov 25];105(2):1-105. Available from: ]

12 Sharma V, Wilson W, Smith W, McEntergart M, Oldroyd K, Sidik N, et al. Comparison of characteristics and complications in men versus women undergoing chronic total occlusion percutaneous intervention. Am J Cardiol[Internet]. 2016[cited 2017 Dec 02];119:535-41. Available from: ]

13 Mertins SM, Kolankiewicz ACB, Rosanelli CLSP, Loro MM, Poli G, Winkelmann ER, et al. Prevalência de fatores de risco em pacientes com infarto agudo do miocárdio. Av Enferm[Internet]. 2016[cited 2017 Dec 02];34(1):30-8. Available from: ]

14 Brasil. Instituto Brasileiro de Geografia e Estatística-IBGE. Síntese de Indicadores Sociais - SIS[Internet]. 2016[cited 2017 Dec 04]. Available from: ]

15 Martin RSS, Franco RJS, Martin AS. Influência do nível socioeconômico sobre os fatores de risco cardiovascular. J Bras Med[Internet]. 2014[cited 2017 Dec 01];102(2):34-7. Available from: ]

16 Barbosa RR, Cesar FB, Serpa RG, Bayerl DMR, Mauro VF, Veloso WUG, et al. Results of primary percutaneous coronary intervention according to the total ischemic time. Rev Bras Cardiol Invasiva[Internet]. 2014[cited 2017 Nov 29];22(2):137-42. Available from: ]

17 Sim WJ, Ang AS, Tan MC, Xiang WW, Foo D, Loh KK, et al. Causes of delay in door-to-balloon time in South-East Asian patients undergoing primary percutaneous coronary intervention. PLoS One[Internet]. 2017[cited 2017 Dec 01];12(9):e0185186. Available from: ]

18 Pinto LLN, Corrêa AR, Donoso MTV, Matos SS, Manzo BF. Estratégias para reduzir o tempo porta-balão nos pacientes com infarto agudo do miocárdio. Rev Min Enferm[Internet]. 2016 [cited 2018 Feb 18];20:e954(1):1-10. Available from: ]

19 Marcolino MS, Brant LCC, Araujo JG, Nascimento BR, Castro LRA, Martins P, et al. Implantação da Linha de Cuidado do Infarto Agudo do Miocárdio no Município de Belo Horizonte. Arq Bras Cardiol[Internet]. 2012[cited 2017 Nov 27];8(5):327-45. Available from: ]

20 Jarrah MI, Hammoudeh AJ, Al-Natour DB, Khader YS, Tabbalat RA, Alhaddad IA, et al. Gender differences in risk profile and outcome of Middle Eastern patients undergoing percutaneous coronary intervention. Saudi Med J[Internet]. 2017[cited 2017 Dec 05];38(2):149-55. Available from: ]

21 Jahic E. Experience and outcomes of primary percutaneous coronary intervention for patients with ST-Segment Elevation Myocardial Infarction of Tertiary Care Center in Bosnia and Herzegovina. Med Arch[Internet]. 2017[cited 2017 Dec 02];71(3):183-7. Available from: ]

22 Ghoreyshi-Hefzabad SM, Kassaian SE, Kheirkhah-Sabetghadam S, Jalali A, Poorhosseini H, Movahed MR, et al. Impact of sex on long-term clinical outcomes after percutaneous coronary intervention. Crit Pathw Cardiol[Internet]. 2017[cited 2017 Dec 01];16(4):161-6. Available from: ]

23 Cardoso CO, Lana DD, Bess G, Sebben JC, Mattos E, Baldissera FA, et al. Resultados das intervenções coronárias percutâneas primárias realizadas nos horários diurno e noturno. Rev Bras Cardiol Invasiva[Internet]. 2014[cited 2017 Nov 30];22(1):10-5. Available from: ]

24 Andrade PB, Rinaldi FS, Bienert IRC, Barbosa RA, Bergonso MH, Matos MPB, et al. Perfil clínico e angiográfico de pacientes jovens submetidos à intervenção coronária percutânea primária. Rev Bras Cardiol Invasiva[Internet]. 2015[cited 2017 Dec 01];23(2):91-5. Available from: ]

25 Reinstadler SJ, Eitel C, Fuernau G, Waha S, Desch S, Mende M, et al. Association of smoking with myocardial injury and clinical outcome in patients undergoing mechanical reperfusion for ST-elevation myocardial infarction. Int J Cardiovasc Imaging[Internet]. 2017[cited 2017 Nov 30];18:39-45. Available from: ]

26 Azhari Z, Ismail MD, Zuhdi ASM, Sari NM, Abidin IZ, Ahmad WAW. Association between body mass index and outcomes after percutaneous coronary intervention in multiethnic South East Asian population: a retrospective analysis of the Malaysian National Cardiovascular Disease Database - Percutaneous Coronary Intervention (NCVD-PCI) registry. Br Med J Open[Internet]. 2017[cited 2017 Dec 24];0:e017794. Available from: ]

27 Numasawa Y, Kohsaka S, Miyata H, Kawamura A, Noma S, Suzuki M, et al. Impact of body mass index on in-hospital complications in patients undergoing percutaneous coronary intervention in a Japanese Real-World Multicenter Registry. PloS One[Internet]. 2015[cited 2017 Dec 24];10(4):e0124399. Available from: ]

28 Gallo AM, Laurenti R. Mudança de hábitos e atitudes em sobreviventes de infarto agudo do miocárdio e angioplastia primária. Saúde[Internet]. 2014[cited 2017 Dec 29];40(2):59-66. Available from: ]

29 Lima FMA, Simonetti JP. Atividade educativa com pacientes submetidos à angioplastia coronariana. Rev Enferm UFPE[Internet]. 2017[cited 2017 Dec 29];11(8):3072-8. Available from: ]

30 Bhat FA, Changal KH, Raina H, Tramboo NA, Rather HA. Transradial versus transfemoral approach for coronary angiography and angioplasty: a prospective, randomized comparison. BMC Cardiovasc Disord[Internet]. 2017[cited 2017 Dec 25];17(23):7. Available from: ]

Received: January 09, 2018; Accepted: March 01, 2018

CORRESPONDING AUTHOR: Maria Solange Moreira de Lima. E-mail:

Creative Commons License This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.