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1.
São Paulo med. j ; 137(1): 54-59, Jan.-Feb. 2019. tab, graf
Article in English | LILACS | ID: biblio-1004747

ABSTRACT

ABSTRACT BACKGROUND: The chest pain classifications that are currently in use are based on studies that are several decades old. Various studies have indicated that these classifications are not sufficient for determining the origin of chest pain without additional diagnostic tests or tools. We describe a new chest pain scoring system that examines the relationship between chest pain and ischemic heart disease (IHD). DESIGN AND SETTING: Cross-sectional study conducted in a tertiary-level university hospital and two public hospitals. METHODS: Chest pain scores were assigned to 484 patients. These patients then underwent a treadmill stress test, followed by myocardial perfusion scintigraphy if necessary. Coronary angiography was then carried out on the patients whose tests had been interpreted as positive for ischemia. Afterwards, the relationship between myocardial ischemia and the test score results was investigated. RESULTS: The median chest pain score was 2 (range: 0-7) among the patients without IHD and 6 (1-8) among those with IHD. The median score of patients with IHD was significantly higher than that of patients without IHD (P = 0.001). Receiver operating characteristic analysis showed that the score had sensitivity of 97% and specificity of 87.5% for detecting IHD. CONCLUSION: We developed a pre-test chest pain score that uses a digital scoring system to assess whether or not the pain was caused by IHD. This scoring system can be applied easily and swiftly by healthcare professionals and can prevent the confusion that is caused by other classification and scoring systems.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Chest Pain/diagnosis , Pain Measurement/methods , Myocardial Ischemia/diagnosis , Severity of Illness Index , Chest Pain/physiopathology , Cross-Sectional Studies , Reproducibility of Results , Risk Factors , Sensitivity and Specificity , Myocardial Ischemia/physiopathology , Statistics, Nonparametric , Risk Assessment/methods , Area Under Curve , Tertiary Care Centers , Hospitals, Public
2.
Arq. bras. cardiol ; 103(3): 183-191, 09/2014. tab, graf
Article in English | LILACS | ID: lil-723821

ABSTRACT

Background: Data from over 4 decades have reported a higher incidence of silent infarction among patients with diabetes mellitus (DM), but recent publications have shown conflicting results regarding the correlation between DM and presence of pain in patients with acute coronary syndromes (ACS). Objective: Our primary objective was to analyze the association between DM and precordial pain at hospital arrival. Secondary analyses evaluated the association between hyperglycemia and precordial pain at presentation, and the subgroup of patients presenting within 6 hours of symptom onset. Methods: We analyzed a prospectively designed registry of 3,544 patients with ACS admitted to a Coronary Care Unit of a tertiary hospital. We developed multivariable models to adjust for potential confounders. Results: Patients with precordial pain were less likely to have DM (30.3%) than those without pain (34.0%; unadjusted p = 0.029), but this difference was not significant after multivariable adjustment, for the global population (p = 0.84), and for subset of patients that presented within 6 hours from symptom onset (p = 0.51). In contrast, precordial pain was more likely among patients with hyperglycemia (41.2% vs 37.0% without hyperglycemia, p = 0.035) in the overall population and also among those who presented within 6 hours (41.6% vs. 32.3%, p = 0.001). Adjusted models showed an independent association between hyperglycemia and pain at presentation, especially among patients who presented within 6 hours (OR = 1.41, p = 0.008). Conclusion: In this non-selected ACS population, there was no correlation between DM and hospital presentation without precordial pain. Moreover, hyperglycemia correlated significantly with pain at presentation, especially in the population that arrived within 6 hours from symptom onset. .


Fundamento: Dados de mais de 4 décadas relataram maior incidência de infarto silencioso entre os pacientes com diabetes mellitus (DM), mas publicações recentes mostraram resultados conflitantes quanto à correlação entre DM e presença de dor em pacientes com síndromes coronárias agudas (SCA). Objetivo: Nosso objetivo principal foi analisar a associação entre dor precordial e DM na chegada ao hospital. Análises secundárias avaliaram a associação entre hiperglicemia e dor precordial na apresentação, e o subgrupo de pacientes que se apresentaram em até 6 horas após o início dos sintomas. Métodos: Analisamos um registro prospectivo de 3.544 pacientes com SCA internados em unidade coronária de um hospital terciário. Desenvolvemos modelos multivariados para ajustar potenciais fatores de confusão. Resultados: Os pacientes com dor precordial eram menos propensos a ter DM (30,3%) do que aqueles sem dor (34,0 %, p não ajustado = 0,029), mas essa diferença não foi significativa após ajuste multivariado, para a população global (p = 0,84), e para o subgrupo de pacientes que se apresentaram dentro do período de 6 horas após o início dos sintomas (p = 0,51). Em contraste, a dor precordial era mais provável entre os pacientes com hiperglicemia (41,2% vs. 37,0% sem hiperglicemia, p = 0,035) na população total, e também entre aqueles que se apresentaram no período de 6 horas (41,6% vs. 32,3%, p = 0,001). Modelos ajustados mostraram uma associação independente entre hiperglicemia e dor na apresentação, especialmente entre os pacientes que se apresentaram no período de até 6 horas (OR = 1,41, p = 0,008). Conclusão: Nesta população não-selecionada com SCA, não houve correlação entre DM e a ...


Subject(s)
Aged , Female , Humans , Male , Middle Aged , Acute Coronary Syndrome/physiopathology , Chest Pain/physiopathology , Diabetic Cardiomyopathies/physiopathology , Pain Threshold/physiology , Chest Pain/etiology , Hospital Mortality , Multivariate Analysis , Patient Admission , Risk Factors , Statistics, Nonparametric , Time Factors
3.
Rev. bras. cir. cardiovasc ; 27(1): 103-109, jan.-mar. 2012. tab
Article in English | LILACS | ID: lil-638657

ABSTRACT

OBJECTIVE: To evaluate respiratory muscle strength, oxygenation and chest pain in patients undergoing off-pump coronary artery bypass (OPCAB) using internal thoracic artery grafts comparing pleural drain insertion site at the subxyphoid region versus the lateral region. METHODS: Forty patients were randomized into two groups in accordance with the pleural drain site. Group II (n = 19) -pleural drain exteriorized in the intercostal space; group (SI) (n = 21) chest tube exteriorized at the subxyphoid region. All patients underwent assessment of respiratory muscle strength (inspiratory and expiratory) on the pre, 1, 3 and 5 postoperative days (POD). Arterial blood gas analysis was collected on the pre and POD1. The chest pain sensation was measured 1, 3 and 5 POD. RESULTS: A significant decrease in respiratory muscle strength (inspiratory and expiratory) was seen in both groups until POD5 (P <0.05). When compared, the difference between groups remained significant with greater decrease in the II (P <0.05). The blood arterial oxygenation fell in both groups (P <0.05), but the oxygenation was lower in the II (P <0.05). Referred chest pain was higher 1, 3 and 5 POD in the II group (P <0.05). The orotracheal intubation time and postoperative length of hospital stay were higher in the II group (P <0.05). CONCLUSION: Patients submitted to subxyphoid pleural drainage showed less decrease in respiratory muscle strength, better preservation of blood oxygenation and reduced thoracic pain compared to patients with intercostal drain on early OPCAB postoperative.


OBJETIVO: Avaliar a força muscular respiratória, oxigenação e dor torácica em pacientes submetidos à cirurgia de revascularização miocárdica (RM) sem circulação extracorpórea (CEC) comparando o local de inserção do dreno pleural na região subxifoidea versus lateral. MÉTODOS: Quarenta pacientes foram randomizados em dois grupos Grupo (II - n = 19) - dreno pleural exteriorizado na região intercostal; Grupo (SI - n = 21) dreno pleural exteriorizado na região subxifoidea. Os pacientes foram submetidos à avaliação da força muscular respiratória no pré, 1º, 3ºe 5º dias de pós-operatório (PO). Gasometria arterial foi coletada no pré e 1º dia do PO. A dor torácica foi avaliada no 1º, 3º e 5º dias de PO. RESULTADOS: Ambos os grupos apresentaram diminuição significante da força muscular respiratória até o quinto dia do PO (P <0,05). A diferença entre os grupos manteve-se significante com maior decréscimo no grupo II (P <0,05). Houve queda na pressão arterial de oxigênio em ambos os grupos (P <0,05), mas quando comparado à queda foi maior no grupo II (P <0,05). A dor torácica no 1º, 2º e 5º dia do PO foi maior grupo II (P <0,05). O tempo de intubação orotraqueal e permanência hospitalar no PO foram maiores no grupo II (P<0,05). CONCLUSÃO: Pacientes submetidos a drenagem pleural subxifoidea apresentaram menor queda na força muscular respiratória, melhor preservação da oxigenação arterial e menos dor comparado aos pacientes com inserção do dreno na região intercostal no PO precoce de cirurgia de RM sem CEC.


Subject(s)
Female , Humans , Male , Middle Aged , Coronary Artery Bypass, Off-Pump , Chest Pain/physiopathology , Drainage/methods , Muscle Strength/physiology , Oxygen/blood , Pleura , Respiratory Muscles/physiology , Epidemiologic Methods , Postoperative Period , Pain, Referred/physiopathology , Xiphoid Bone
6.
Arq. gastroenterol ; 46(3): 233-240, jul.-set. 2009. ilus, tab
Article in Portuguese | LILACS | ID: lil-530065

ABSTRACT

CONTEXTO: Dor torácica não-cardiogênica ou dor torácica funcional é síndrome clínica com elevada prevalência no mundo ocidental, podendo estar presente entre 15 por cento a 30 por cento dos pacientes com coronariografias normais. Tem importante impacto na qualidade de vida dos pacientes e associa-se com considerável aumento da utilização dos serviços de saúde. FONTES DE INFORMAÇÃO: Para esta revisão, foram utilizadas as seguintes bases de dados: Medline, the Cochrane Library, LILACS e livros nacionais. Das publicações dos últimos 5 anos foram selecionadas fontes relevantes como artigos originais, artigos de revisão, consensos, diretrizes e revisões sistemáticas de literatura com meta-análise. Publicações relevantes anteriores ao período de tempo analisado, foram também incluídas. RESULTADOS: Foram incluídas 44 publicações, sendo 28 artigos originais, 12 trabalhos de revisão, 2 diretrizes, 1 meta-análise e 1 consenso. CONCLUSÕES: A dor torácica não-cardiogênica abrange a investigação do trato digestório, do aparelho musculoesquelético, do aparelho respiratório e de distúrbios psicológicos. O objetivo do tratamento é o alívio ou eliminação do sintoma e deve estar voltado para o principal mecanismo gerador. A base do tratamento é medicamentosa, entretanto, pode ser necessária intervenção de natureza psicológica e, nos pacientes com acalásia a terapia endoscópica ou cirúrgica. Considerando-se que a maioria dos pacientes apresentarão causas relacionadas ao esôfago, sendo as principais, a doença do refluxo gastroesofágico e distúrbios motores, as principais medicações utilizadas no controle da dor torácica não-cardiogênica são os inibidores da bomba de prótons e os antidepressivos tricíclicos. Recentemente, novas modalidades diagnósticas e também formas de tratamento, tais como, a injeção por endoscopia de toxina botulínica no esôfago e a hipnose, estão em investigação e algumas poderão ocupar lugar no cenário do tratamento destes pacientes.


CONTEXT: Non-cardiac chest pain or functional chest pain is a syndrome with high prevalence in ocidental world. Findings on 15 percent-30 percent of coronary angiograms performed in patients with chest pain are normal. Causes significant impact in quality of life of patients and is associated with increased use of the health care facilities. DATA SOURCES: To this review the following data base were accessed: Medline, the Cochrane Library, LILACS. The limit was the last 5 years publications and were selected relevant original articles, reviews, consensus, guidelines and meta-analysis. RESULTS: Forty-four papers were selected, 28 original articles, 12 reviews, 2 guidelines, 1 consensus and 1 meta-analysis. CONCLUSIONS: Exclusion of cardiac disease is of crucial importance. On the other hand non-cardiac chest pain could be related to gastrointestinal, muscular and respiratory causes and/or psychological disturbances. Treatment aims to attack mechanism generator in order to relieve or to eliminate symptoms. Drugs are the cornerstone of treatment, exception to achalasia patients because those have better response to dilation of the esophagus or surgery, and to those who need intensive pyschological therapy. The most important drugs used are proton pump inhibitors and triciclic antidepressants, the latter, to modulate central signal process (visceral hypersensitivity) and autonomic response. Recently, new diagnostic facilities, and also therapeutic modalities, such as esophageal botulin toxin injection and hypnosis are under investigations. In the near future, maybe some of them would take a place in the therapeutic scenario of these patients.


Subject(s)
Humans , Chest Pain , Algorithms , Chest Pain/diagnosis , Chest Pain/etiology , Chest Pain/physiopathology , Chest Pain/therapy
8.
Article in English | IMSEAR | ID: sea-94302

ABSTRACT

BACKGROUND: Chest pain is a common emergency. Some patients have dynamic ECG changes with chest pain. Purpose of study was to find out the incidence of coronary artery disease (CAD) in patients presenting with chest pain and dynamic ECG changes. MATERIAL AND RESULTS: Seventy two patients presenting with chest pain and dynamic ECG changes were subjected to coronary angiography. Thirty nine patients had typical angina/unstable angina (USA). Twenty seven were males and 12 were females. Mean age was 57.28 +/- 8.91 years. 36 (92.3%) of these were found to have CAD. Only three patients of these had normal coronaries. Thirty three patients had atypical chest pain. Twenty two were females and 11 were males. Mean age was 45.15 +/- 10.18 years. Only two (6%) of these patients had CAD. Thirty one (94%) patients had normal coronaries. CONCLUSION: History of typical angina with dynamic ECG changes is highly suggestive of CAD as a cause of chest pain. Patients with atypical chest pain with dynamic ECG changes have low likelihood of CAD. Young patients and females may have dynamic ECG changes without CAD.


Subject(s)
Chest Pain/physiopathology , Coronary Angiography , Coronary Artery Disease/diagnosis , Diagnosis, Differential , Electrocardiography , Female , Health Status Indicators , Humans , Incidence , Male , Middle Aged , Prospective Studies
9.
Tunisie Medicale [La]. 2007; 85 (11): 909-912
in French | IMEMR | ID: emr-134718

ABSTRACT

Non cardiac chest pain is a frequent symptom in general population. Gastroesophageal reflux disease is the first cause of chest pain without cardiac etiology. This review aimed to determine the specific mechanisms for esophageal-induced chest pain, to evaluate the results of the available methods of diagnosis, and to precise the therapeutic options in these patients. Literature Review. Gastroesophageal reflux disease is the most frequent etiology of "DTPA" .The mecanism of pathogemy is complex. After eliminatring coronary disease, diagnosis is based on esophagus phmetry and markers. Therapeutic test with PPI would be an alternative option to phmcttry. Treatment is based on PPI with appropriate dose and duration. Surgical treatement is indicated only for selected patients


Subject(s)
Humans , Gastroesophageal Reflux/diagnosis , Gastroesophageal Reflux/therapy , Chest Pain/etiology , Chest Pain/physiopathology , Chest Pain/diagnosis , Chest Pain/therapy , Esophageal pH Monitoring , Fundoplication
10.
Arq. bras. cardiol ; 86(5): 346-352, maio 2006. tab
Article in Portuguese | LILACS | ID: lil-428255

ABSTRACT

OBJETIVO: Estudar o valor prognóstico das variáveis do teste ergométrico em pacientes idosos com doença aterosclerótica coronariana e isquemia induzida pelo esforço. MÉTODOS: Foram estudados 64 pacientes idosos (61 homens, idade de 73 ± 5 anos) com doença aterosclerótica coronariana, comprovada por coronariografia, clinicamente estável, fração de ejeção de ventrículo esquerdo maior ou igual a 0,40 e isquemia miocárdica durante o teste ergométrico. A cada seis meses, os pacientes foram avaliados para eventos cardíacos (morte, infarto do miocárdio, angina instável, angioplastia e revascularização do miocárdio). RESULTADOS: Após seguimento médio de 48 meses, 23 (36 por cento) pacientes sofreram eventos cardíacos. Não houve diferença clínica e angiográfica entre os pacientes que sofreram o evento e os que não o sofreram. Pela análise multivariada, a presença de dor precordial durante o teste ergométrico (risco relativo de 2,668 e p = 0,031) e a freqüência cardíaca no início da isquemia (risco relativo de 0,966 e p = 0,009) foram associadas a eventos cardíacos. CONCLUSÃO: Nessa população idosa, a presença de dor precordial durante o teste ergométrico e a freqüência cardíaca no início da isquemia foram associadas a eventos cardíacos. Essas variáveis podem ser úteis para avaliação do risco de pacientes com doença aterosclerótica coronariana estável.


Subject(s)
Humans , Male , Aged , Coronary Artery Disease/physiopathology , Exercise Test/adverse effects , Myocardial Ischemia/diagnosis , Angina, Unstable/diagnosis , Angina, Unstable/psychology , Chest Pain/diagnosis , Chest Pain/etiology , Chest Pain/physiopathology , Follow-Up Studies , Heart Rate/physiology , Multivariate Analysis , Myocardial Revascularization , Myocardial Ischemia/etiology , Myocardial Ischemia/physiopathology , Prognosis , Risk Factors , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/physiopathology
11.
Rev. SOCERJ ; 18(6): 573-576, nov.-dez. 2005. ilus
Article in Portuguese | LILACS | ID: lil-434761

ABSTRACT

A descrição de relatos de caso tem o objetivo de mostraro os números diagnósticos possíveis numa determinada situação clínica, bem como o raciocínio e os métodos de investigação que foram utilizados pela equipe médica envolvida. Será discutido o diagnóstico de formação expansiva mediastinal que surgiu após angioplastia percutânea.


Subject(s)
Humans , Male , Aged , Angioplasty/instrumentation , Angioplasty/methods , Chest Pain/complications , Chest Pain/diagnosis , Chest Pain/physiopathology , Myocardial Revascularization/instrumentation , Myocardial Revascularization/methods , Tomography, X-Ray Computed/instrumentation , Tomography, X-Ray Computed/methods
13.
Rev. méd. Chile ; 133(5): 570-574, mayo 2005. ilus, tab
Article in Spanish | LILACS | ID: lil-429059

ABSTRACT

We report three patients with pre-excitation syndrome that resembled an acute coronary syndrome. A 65 years old woman, consulting in the emergency room for palpitations and retrosternal pain. EKG showed regular tachycardia and ST depression that reverted spontaneously after an episode of vomiting. A subsequent EKG demonstrated a pre-excitation syndrome and the accessory pathway was fulgurated. A 18 years old male presenting with tachycardia and chest pain elicited during exercise. An EKG showed a pre-excitation syndrome and ST segment elevation in V2 and V3. A coronary angiogram was normal. The accessory pathway successfully fulgurated. A 63 years old woman that presented tachycardia while exercising. She was subjected to an electrical cardioversion. An electrophysiological study showed an accessory pathway that was successfully fulgurated.


Subject(s)
Adolescent , Aged , Female , Humans , Male , Middle Aged , Chest Pain/etiology , Heart Conduction System/abnormalities , Pre-Excitation Syndromes/complications , Chest Pain/physiopathology , Electrocardiography , Heart Atria/physiopathology , Heart Conduction System/physiopathology , Heart Ventricles/physiopathology , Myocardium/enzymology , Pre-Excitation Syndromes/physiopathology
14.
Rev. SOCERJ ; 17(2): 140-147, abr.-jun. 2004. ilus, graf
Article in Portuguese | LILACS | ID: lil-400618

ABSTRACT

Objetivos: verificar o quantitativo de Unidades de Dor Torácica no Brasil e identificar as suas características de operacionalidade. Métodos: análise de questionário enviado em 2002 a todas as Unidades de Dor Torácica do Brasil conhecidas e rastreadas pelos pesquisadores, contendo perguntas sobre diversas características dos hospitais/clínicas onde estão instaladas e sobre o funcionamento de suas respectivas salas de emergência. Resultados: foram contatadas 47 Unidades de Dor Torácica; destas, 42 estavam em funcionamento e responderam ao questionário. A maior parte delas está localizada na região sul-sudeste e 37 em instituições privadas. Angioplastia e cirurgia cardíaca são realizadas na grande maioria destes centros e 1/3 deles realizam angioplastia primária. Nas unidades que administram fibrinolítico, o tempo porta-agulha mediano é de 30 minutos. A maioria das unidades realiza um teste de estresse pré-alta nos pacientes com dor torácica sem síndrome coronariana aguda. Muitas instituições informaram não conseguir pagamento dos atendimentos realizados na Unidade de Dor Torácica por parte das diversas fontes pagadoras. Conclusões: desde 1996, o crescimento das Unidades de Dor Torácica no Brasil tem sido constante, apesar de o quantitativo ainda ser pequeno. O atendimento médico prestado por estas unidades parece ser mais rápido e de melhor qualidade e eficiência que o padrão assistencial médio nacional, e por isso deve ser um modelo a ser buscado pelos gestores de saúde e fontes pagadoras.


Subject(s)
Chest Pain/physiopathology , Chest Pain/prevention & control , Thorax/abnormalities , Pain/prevention & control
16.
Rev. méd. Chile ; 124(12): 1423-30, dic. 1996. graf
Article in Spanish | LILACS | ID: lil-194789

ABSTRACT

In 807 consecutive patients from the Chilean National Registry of Acute Myocardial Infarction we analyzed the resolution of chest pain and ST segment elevation over 50 percent within the first 90 min, abrupt CK rise within 8 h and T wave inversion in infarct related EKG leads within the first 24 h after thrombolysis. Global in-hospital mortality was 12.1 percent. Mortality of patients with the presence of 3 or 4 markers of coronary artery patency was 5.1 percent, in those with resolution of ST elevation and abrupt CK rise was 6.25 percent and in those with T wave inversion it was 3.9 percent (p<0.001). Multivariate analysis, adjusted by age, gender, risk factors, Killip class and infarct location showed that early T wave inversion was the better predictor of a low in-hospital mortality and its combination with other markers of coronary artery patency did not increase its prognostic power. Early CK rise and the presence of 3 out of 4 reperfusion criteria were also independent predictors of a low mortality. Non invasive markers of coronary artery patency are associated with a lower in-hospital mortality and may serve as surrogate end points in clinical trials


Subject(s)
Humans , Male , Female , Myocardial Infarction/therapy , Myocardial Reperfusion/methods , Thrombolytic Therapy/methods , Streptokinase/administration & dosage , Chest Pain/physiopathology , Chest Pain/therapy , Prospective Studies , Myocardial Infarction/mortality , Prognosis
17.
Trib. méd. (Bogotá) ; 94(3): 143-51, sept. 1996. ilus, tab
Article in Spanish | LILACS | ID: lil-294094

ABSTRACT

EL esófago puede ser la fuente de dolor torácico hasta en el 50 porciento de los pacientes en quienes se descarta enfermedad coronaria


Subject(s)
Humans , Chest Pain/diagnosis , Chest Pain/etiology , Chest Pain/physiopathology
18.
Rev. méd. (La Paz) ; 3(1): 251-60, ene.-mar. 1996. tab
Article in Spanish | LILACS | ID: lil-196504

ABSTRACT

35 pacientes (20 hombres, 15 mujeres) con edad media de 61 (29-91) con factores de riesgo, clinica, radiografia, de torax y electrocardiograma caracteristico de TEP. Fueron divididos en 2 grupos: el primero con 10 pacientes, que tenian gamagrafia pulmonar y 1 arteriografia pulmonar. Grupo 2 con 24 casos que carecian de esos metodos confirmatorios. Los resultados en el grupo 1; la disnea, dolor toracico y tos fueron sintomas mas frecuentes; estertores y condensacion pulmonar cianosis, fueron los signos mas predominantes. En la radiologia, se presento mas frecuentemente: zonas hipovasculares opacidades y cardiomegalia. en el electrocardiograma, la isquemia subepicardica, dextrorotacion e imagen S1Q3T3m se ibservaron mas frecuentemente. Los factores de riesgo mas frecuentes en ambos grupos fueron: trombosis venosa, inmovilización y edad mayor a 50 años. No se encontro diferencias estadisticamente significativas entre los 2 grupos, cuando se comparo la frecuencia de alteraciones radiologicas o electrocardiograficas, factores de riesgo o manifestaciones clinicas. 4 pacientes tuvieron recidivas y fallecieron 13 (37,1]. Como conclusion el TEP, se debe sospechar, cuando exista cuadro clinico, radiologico y electrocargiografico, caracteristico, procurando confirmar con la gamagrafia o arteriografia pulmonar.


Subject(s)
Humans , Male , Female , Pulmonary Embolism/physiopathology , Tachycardia/physiopathology , Heart Diseases/physiopathology , Radiology/trends , Chest Pain/physiopathology , Angiography , Echocardiography , Cough/physiopathology , Dyspnea/physiopathology , Clinical Diagnosis , Electrocardiography , Lung/physiopathology
19.
Indian Heart J ; 1996 Jan-Feb; 48(1): 81
Article in English | IMSEAR | ID: sea-4766
20.
In. Schiabel, Homero; Slaets, Annie France Frère; Costa, Luciano da Fontoura; Baffa Filho, Oswaldo; Marques, Paulo Mazzoncini de Azevedo. Anais do III Fórum Nacional de Ciência e Tecnologia em Saúde. Säo Carlos, s.n, 1996. p.729-730.
Monography in Portuguese | LILACS | ID: lil-233953

ABSTRACT

Este trabalho descreve a implementação do sistema DoToR para o apoio ao diagnóstico de dor torácica aguda de origem não-traumática. O paradigma central utilizado é o raciocínio por analogia com protótipos de doenças, onde uma inferência é realizada computando-se o grau de similaridade entre um protótipo e um caso real. O sistema desenvolvido é capaz de diagnosticar 12 diferentes patologias, cujo sintoma comum é a dor torácica, incluindo diversas potencialmente letais. Um sistema de aprendizado é utilizado para aumentar o desempenho do sistema DoToR simulando o aprendizado qualitativo.


Subject(s)
Chest Pain/physiopathology , Expert Systems , Diagnosis, Differential , Algorithms , Medical History Taking
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