METHOD FOR THE MODELING AND STRUCTURING OF COMPUTERIZED NURSING IN INTENSIVE CARE

Hybrid study of technological production and methodological research aimed at restructuring and organize data and information from the Computerized Nursing Process, based on the International Classification for Nursing Practice (ICNP®) version 2.0 for Intensive Care Units. Study carried out in four stages: review of conceptual modeling and system logic; grouping of clinical situations in order of increasing complexity; determination of diagnoses and interventions for each clinical situation and; selection and registration of diagnoses and nursing interventions in the computerized system. As a result, 1,349 possibilities for clinical evaluations, 949 diagnoses and 438 nursing interventions were organized, restructured and divided into nine human body systems. The Computerized Nursing Process based on ICNP® can measure results, is adaptable to any reality and allows nurses to use this tool as a structured knowledge base. DESCRIPTORS: Nursing informatics. Nursing process. Classification. Point-of-Care systems. Intensive care units. METODOLOGÍA PARA EL MODELADO Y ESTRUCTURA DEL PROCESO DE ENFERMERÍA COMPUTARIZADO EN CUIDADOS INTENSIVOS RESUMEN: Estudio híbrido de producción tecnológica e investigación metodológica que tuvo por objetivo reestructurar y organizar los datos e información del Proceso de Enfermería Computarizada de la Clasificación Internacional para la Práctica de Enfermería (CIPE®) Versión 2.0 en unidades de cuidados intensivos. Estudio realizado en cuatro etapas: revisión de modelado conceptual y lógica del sistema; agrupación de situaciones clínicas en orden de complejidad creciente; determinar los diagnósticos e intervenciones para cada situación clínica y; selección y registro de diagnósticos e intervenciones de enfermería en el sistema informatizado. Se obtuvo como resultado la organización de 1.349 posibilidades para las evaluaciones clínicas, 949 diagnósticos y 438 intervenciones de enfermería, reestructurados y distribuidas en nueve sistemas del cuerpo humano. El Proceso de Enfermería Informatizado basado en CIPE® puede medir los resultados, es adaptable a cualquier realidad y permite a las enfermeras a utilizar esta herramienta como base estructura de su conocimiento. DESCRIPTORES: Informática aplicada a la enfermería. Procesos de enfermería. Clasificación. Sistemas de atención de punto. Unidades de terapia intensiva. http://dx.doi.org/10.1590/0104-07072016002380015


INTRODUCTION
Health care faces new and complex challenges around the world.Among these, the continuing growth in the number of people is highlighted, which has accompanied the advancement of technologies and knowledge in health, aiming to improve the prevention processes of diseases, health promotion, treatment and rehabilitation.This development pressures the health care system to improve the quality and reduce the costs.To achieve such ambitious target, among other aspects, information systems and informatics technologies are needed, which efficiently integrate the cooperation among different health professionals in the targets to improve the population's health and in the highest quality levels of the patients' treatment process.
In the age of information and communication technologies (ICTs), computers have become fundamental in health services, especially due to: the need to process a large amount of information in a short time interval; speed and safety in the access to and organization of the information, independently of the time and place; and improvement in the organization of the patient data and information.][3][4][5] Nursing can use the ICTs to establish, in the care environment, the Computerized Nursing Process (CNP) in intensive care.At a sector like the Intensive Care Unit (ICU), the CNP integrates, organizes and guarantees the continuity of the nursing team's information; it permits efficacy and effectiveness assessments, modifications according to the outcomes of patient recovery; and provides a permanent background for nursing education, research and management. 2,6] In this context, the International Classification for Nursing Practice (ICNP ® ), elaborated by the International Council of Nurses (ICN), stands out because of its standardization and structure ready for computerization, consisting of terms and definitions that permit the construction of nursing diagnoses, interventions and outcomes to document nursing care.It is also highlighted that this classification adopts the standard ISO 18.104, published in 2003, which addresses the reference terminology model for nursing diagnoses and actions.][11][12] In view of these considerations, since 1999, several studies have developed, improved and assessed the CNP in accordance with the ICNP ® .4] In this study, the CNP for ICUs is structured based on version 2, the most recent version translated to Portuguese by the Portuguese Order of Nurses, in 2011.
With the positive assessment of nurses, computer and/or intensive care expert teachers and system programmers, new recommendations for future studies were suggested, including the updating and restructuring of the data and information from the CNP for the web and mobile devices.In that sense, the goal in this study was to restructure and organize the data and information from a CNP based on ICNP ® version 2.0 for ICUs.

METHOD
Hybrid study of technological production and methodological research 15 on the restructuring of the data and information from the CNP for ICUs, available via web in desktop environments and in mobile devices.The data and information were restructured and organized to update, complement and adapt the CNP for the purpose of better application and use in adult ICUs.
The Catarina and received approval without any exemptions (protocol 947/10).It is highlighted that this study refers to one of the specific objectives of the research, entitled "Computerized nursing process and patient safety in intensive care based on the ICNP ® version 1.0: clinical evidence for care".In the phases after the modeling and structuring of the computer system, nurses, teachers and system programmers assessed the study, therefore requiring preliminary approval by the Etichal Research Committee.
The study was developed between May and August 2011 in four phases, explained next: 1 st phase: review of the conceptual and logical modeling of the computer system.These two structures were developed simultaneously.The data modeling followed the conceptual entity-relationship model, containing 35 entities in a structure represented by the tables (which demonstrate the relationship between the data), operations, and by the relationships, using the Structured Query Language (SQL).This is a declarative research language for a relational database.This relational database model defines ways to store, manipulate and recover data solely structure in the form of tables, appropriate to serve as the underlying model of a Database Management System. 16o give an example, the primary keys representing the attributes that identify the entity, used in the structure of this database, were: id_prontuário; id_avaliações; id_diagnósticos; id_intervenções (for the different human systems), id_fluidoterapia, among others.The foreign key, in turn, which can also be one or several attributes, is used to refer to entities in other tables and considers the values of the primary key in the referred table.Examples are: id_avaliacões or id_ alterações for the primary key, id_diagnósticos and so forth.Therefore, all entities in the conceptual model turned into tables in the logical project and tables were also added to feed the data forms.
2 nd phase: grouping of different clinical situations in order of complexity/severity, used for the association, articulation and restructuring of the data, aiming to address all items o the patient's clinical assessment.Three to four groups of clinical situations were structured for each human system, specified as follows: three clinical situations for the musculoskeletal, integumentary, biopsychosocial, gastrointestinal, male reproductive and female reproductive systems and four for the respiratory, cardiovascular, neurological and renal systems.
The latter human systems considered four clinical situations, especially due to the larger data volume and clinical assessment information.The grouping of the clinical situations for each human system was based on cases of patients hospitalized at the ICU.This phase was developed based on the study participants' professional experience, reasoning and clinical judgment, being therefore a theoreticalconceptual cluster.
3 rd phase: determination of a group of nursing diagnoses and interventions based on the ICNP ® version 2.0 for each clinical situation elaborated.This phase was developed through weekly meetings and again required that the nurses integrated professional practice and theory, the development of clinical reasoning and clinical judgment, through the countless possible associations that could be made in accordance with each clinical condition of patients in critical health conditions.
4 th phase: selection and registration of nursing diagnoses and interventions directly in the computer system.For each diagnosis, in each human system, the corresponding interventions were selected and registered.It should be highlighted that, for countless nursing diagnoses, different interventions could be selected, which could address one or more diagnoses.Thus, a detailed reading of all interventions was needed for each diagnosis registered in the CNP.The number of interventions varied according to the nursing diagnosis.In this phase, a wide-ranging and in-depth review of the data, diagnoses and interventions in the CNP was done.The system was immediately updated, so that diagnoses without corresponding or with repeated and/or outdated interventions were excluded.

RESULTS
After the updates and restructuring of the CNP, that is, the association and registration of the clinical assessment, nursing diagnosis and intervention data, the system went through significant, relevant and innovative modifications for nursing care in ICUs.When the nurse selects the clinical assessment data and information from a certain human system, the CNP offers a group of possible diagnoses for the clinical assessment made, thus supporting his/her decision making.It is highlighted that the other diagnoses the system did not address or suggest are available for research in a link at the end of the diagnoses listed.
Barra DCC, Almeida SRW, Sasso GTMD, Paese F, Rios GC 4/8 The same restructuring was undertaken for the nursing diagnoses, that is, when a diagnosis is selected, the system offers the interventions corresponding to that diagnosis.The nurse can disregard an intervention if the patient, because of some characteristic and/or clinical change, does not need that intervention.Like on the diagnosis screen, at the bottom of the nursing interventions screen, a link is displayed to access the other human system interventions.Thus, as the data and information structure was organized, it was immediately restructured and incorporated in the system design, as can be observed in Figures 1 and 2

Florianópolis-SC, 2011
To permit the electronic assignation of the nursing interventions, to the left of each intervention, space was provided for the nurse to click and access a box with figures from 1 to 24, representing the time.The nurse chooses at what time that intervention is necessary, and these times are immediately transferred to the specific space of the intervention.
The restructuring and organization of the CNP resulted in 1,349 clinical assessment possibilities, 949 diagnoses and 438 nursing interventions, in accordance with the ICNP ® 2.0, distributed among the nine human body systems, as shown in Table 1.It is highlighted that, due to the scientific and technological advances, evidence-based practice and the consequent complexity of ICU care, many updated nursing interventions were added to the CNP.To give an example, the nursing interventions related to the verification of intra-abdominal pressure are mentioned.This procedure is relatively recent in nursing care and was not part of the data and information in the system yet.Two diagnoses and four interventions related to this care were added.

DISCUSSION
The ICTs have turned into a very important tool to improve the access to, cost and quality of health care.The ICTs support the systematic documentation of care and permit the filing of data on the health care services, resources and patient outcomes in repositories that can be accessed and analyzed to assess the health care and produce new knowledge.The ICTs also facilitate the nurses' access to the data and to evidence. 16he complexity of the information in the globalized world is redefining and creating new characteristics of health care, representing a current challenge for health and nursing.Therefore, the data and information from the CNP need to be assessed and modified whenever necessary, with a view to the development of safe and evidence-based nursing care. 6he data and information on the clinical assessment, nursing diagnoses and interventions were associated and restructured according to the experience of the professionals who were part of the study and were confirmed through an exhaustive search in recent reference literature, in search of new scientific evidence.][21][22] Based on the modeling, restructuring and organization of the computerized data and information, the nurse can deliver better quality and safer care, as the largest possible number of clinical assessments, nursing diagnoses and interventions could be related and integrated.This restructuring permitted a range of suggestions for assessment, diagnostic and interventions items or care for the purpose of support and decision making in the clinical practice of ICU nurses.
The development, application and assessment of a nursing terminology integrated into the electronic health record are priorities for the development of nursing.The aggregation of a standardized terminology like the ICNP Ò enables the nurse to test the validity and reliability of the knowledge representation.This knowledge representation, through the extraction of data and information, is used to support clinical decision making and the development of specific nursing resarch. 23In a study developed in Sweden with 85 nurses, it was concluded that one of the prerequisites to enhance the quality of care is the maintained quality of standardized care plans through computerization. 246][27][28][29] In other words, each technology that is added to care and to the organization system increases the complexity of nursing work, although it also makes possible the reduction of the workload, improving the quality of care and reducing errors and adverse events. 30n the methodological phases adopted for the modeling, restructuring and organization of the system, phase 2 involved the elaboration of specific clinical situations, involving a ranking of complexity of a fictitious patient's clinical problems.In other words, clinical situation 1 always referred to a patient with his compensated clinical functions (in each human system), which resulted in few nursing diagnoses and interventions); in the final situation (situation 3 or 4, according to the human system assessed), the patient presented severe problems or decompensations in his clinical functions, resulting in various nursing diagnoses and interventions.
In the third phase, the composition and review of the nursing diagnoses was organized in compliance with the declaration of the ICNP ® Catalogue recommends the inclusion of at least one term from the Focus Axis and one term from the Judgment Axis.The same happened with the review of the nursing interventions, that is, the declaration of the ICNP ® Catalogue was complied with, including one term from the Action Axis and at least one term from any of the other axes, except for the Judgment Axis. 17After this review and the composition of new 7/8 and updated nursing diagnoses and interventions, the researchers determined the proper clusters for each human system.In this phase, the number of interventions for each diagnosis greatly varied.As an example of this variation, it was observed that, for the nursing diagnosis "mild amnesia" (neurological system), only one intervention was registered.For the nursing diagnosis "severe ischemic pain" (cardiovascular system), 23 interventions were registered.
To cluster and associate the clinical situations with the respective nursing diagnoses and interventions, clinical reasoning and judgment were continuously used, based on the clinical experience of each research participants.Thus, the intent was to dynamically develop schematic and logical reasoning to analyze and make decisions on the different clinical situations and contexts of complex patient care.
It is highlighted that, based on the method for the modeling and structuring of the computerized nursing process in intensive care developed in this study, in a subsequent phase, the usability, ergonomics, cognitive workload and time spent to practice the nursing process based on the ICNP ® 2.0 could be analyzed.

CONCLUSIONS
The restructuring and organization of the CNP resulted in 1,349 possible clinical assessments, 949 diagnoses and 438 interventions, distributed among the nine human body systems, evidencing that the nursing process based on the ICNP ® version 2.0 can not only be computerized and measure outcomes, but can also be adapted to any reality and allows the nurse to use this tool as a structured knowledge base.
When using the ICNP ® , it is considered that, by concretely associating the clinical assessments, Nursing diagnoses, interventions and outcomes, the nurses organize and develop clinical reasoning in the care process of ICU patients.
It is highlighted that the application of the current structure and modeling of the CNP is focused on ICUs and Emergency services.Nevertheless, the structured database permits the expansion of the system to the other nursing care environments.The data and information stored permit future studies, such as: construction and measuring of quality indicators for patient safety; integration with different hospital information systems through the electronic patient file and; measuring of the outcomes of nurs-ing interventions in patients' different clinical situations based on diagnostic changes. .