RESUMO
This study investigated subjective biopsychosocial effects of coronary heart disease (CHD), coping strategies and social support in patients undergoing cardiac rehabilitation (CR) and having extensive work-related problems. A qualitative investigation was performed in 17 patients (48.9±7.0 y, 13 male) with extensive work-related problems (SIMBO-C>30). All patients were interviewed with structured surveys. Data analysis was performed using a software that is based on the content analysis approach of Mayring. In regard to effects of disease, patients indicated social aspects including occupational aspects (62%) more often than physical or mental factors (9 or 29%). Applied coping strategies and support services are mainly focused on physical impairments (70 or 45%). The development of appropriate coping strategies was insufficient although social effects of disease were subjectively meaningful for patients in CR.
Assuntos
Reabilitação Cardíaca/psicologia , Doença da Artéria Coronariana/psicologia , Doença da Artéria Coronariana/reabilitação , Retorno ao Trabalho/psicologia , Licença Médica/estatística & dados numéricos , Ajustamento Social , Apoio Social , Adaptação Psicológica , Reabilitação Cardíaca/estatística & dados numéricos , Doença da Artéria Coronariana/epidemiologia , Feminino , Alemanha/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Qualidade de Vida/psicologia , Retorno ao Trabalho/estatística & dados numéricos , Fatores de RiscoRESUMO
BACKGROUND: After weaning failure, patients who are transferred from intensive care units to early rehabilitation centers (ERC) not only suffer from motor deficits but also from cognitive deficits. It is still uncertain which patient factors have an impact on cognitive outcome at the end of early rehabilitation. OBJECTIVE: Investigation of predictors of cognitive performance for initially ventilated early rehabilitation patients. METHODS: A total of 301 patients (mean age 68.3 ± 11.4 years, 67% male) were consecutively enrolled in an ERC for a prospective observational study between January 2014 and December 2015. To investigate influencing factors on cognitive outcome operationalized by the neuromental index (NMI), we collected sociodemographic data, parameters about the critical illness, comorbidities, weaning and decannulation as well as different functional scores at admission and discharge and carried out multivariate analyses by ANCOVA. RESULTS: Of the patients 248 (82%) were successfully weaned, 155 (52%) decannulated and 75 patients (25%) died of whom 39 (13%) were under palliative treatment. For the survivors (n = 226) we could identify independent predictors of the NMI at discharge from the ERC in the final sex and age-adjusted statistical model: alertness and decannulation were positively associated with the NMI whereas hypoxia, cerebral infarction and traumatic brain injury had a negative impact on cognitive ability. The model justifies 57% of the variance of the NMI (R2 = 0.568) and therefore has a high quality of explanation. CONCLUSION: Because of increased risk of cognitive deficits at discharge of ERC, all patients who suffered from hypoxia, cerebral infarction or traumatic brain injury should be intensively treated by neuropsychologists. Since decannulation is also associated with positive cognitive outcome, a rapid decannulation procedure should also be an important therapeutic target, especially in alert patients.
Assuntos
Dano Encefálico Crônico/reabilitação , Transtornos Cognitivos/reabilitação , Intervenção Médica Precoce , Unidades de Terapia Intensiva , Desmame do Respirador , Idoso , Idoso de 80 Anos ou mais , Dano Encefálico Crônico/diagnóstico , Dano Encefálico Crônico/mortalidade , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/mortalidade , Feminino , Alemanha , Mortalidade Hospitalar , Humanos , Masculino , Entrevista Psiquiátrica Padronizada , Pessoa de Meia-Idade , Exame Neurológico , Avaliação de Processos e Resultados em Cuidados de Saúde , Estudos Prospectivos , Medição de Risco , TraqueotomiaRESUMO
AIMS: This study investigated the incidence of hypertensive target organ damage (TOD), control of cardiovascular risk factors, and the short-term prognosis in hypertensive patients under contemporary guideline-oriented therapy. PATIENTS AND METHODS: A total of 1,377 consecutive patients (mean age 58.2 ± 9.9 years, 82.2 % male) with arterial hypertension were included in the ESTher (Endorganschäden, Therapie und Verlauf - target organ damage, therapy, and course) registry at 15 rehabilitation clinics within the framework of the National Genome Research Network. Cardiovascular risk factors, medication, comorbidities, and glomerular filtration rate (GFR) were assessed. Left ventricular hypertrophy (LVH), left ventricular mass (LVM), left ventricular mass index (LVMI), and left ventricular ejection fraction (LVEF) were determined by two-dimensional echocardiography. The mean follow-up was 513 ± 159 days. Changes in continuous parameters were tested by the t test, changes in discrete characteristics are presented by means of transition tables and tested with the McNemar test. RESULTS: The mean LVEF was 59.3 ± 9.9 %, both mean LVM (238.6 ± 101.5 g) and LVMI (54.0 ± 23.6 g/m(2.7)) were increased while relative wall thickness (RWT, 0.46 ± 0.18) indicated the presence of concentric LVH. Of the patients, 10.2 % displayed renal dysfunction (estimated GFR < 60 ml/min/1.73 m(2)). The 1.5-year overall mortality was 1.2 %. Compared with discharge, at follow-up the proportion of patients with blood pressure (BP) values < 140/90 mmHg decreased from 68.7 % to 55.0 % (p < 0.001) and with low-density lipoprotein (LDL) values < 100 mg/dl from 62.6 % to 38.1 % (p < 0.001). At follow-up significantly more patients displayed a GFR value of < 60 ml/min/1.73 m(2) (10.2 % vs. 16.0 %, p < 0.001). CONCLUSION: A significant proportion of hypertensive rehabilitation participants displayed TOD including LVH and renal dysfunction. Even after stringent BP reduction, a considerable increase in nephropathy could be found after 18 months.
Assuntos
Hipertensão/mortalidade , Hipertrofia Ventricular Esquerda/mortalidade , Sistema de Registros , Insuficiência Renal/mortalidade , Disfunção Ventricular Esquerda/mortalidade , Comorbidade , Medicina Baseada em Evidências , Feminino , Alemanha/epidemiologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Órgãos em Risco , Fatores de Risco , Taxa de SobrevidaRESUMO
BACKGROUND: So far, for center comparisons in inpatient cardiac rehabilitation (CR), the objective outcome quality was neglected because of challenges in quantifying the overall success of CR. In this article, a multifactorial benchmark model measuring the individual rehabilitation success is presented. METHODS: In 21 rehabilitation centers, 5123 patients were consecutively enrolled between 01/2010 and 12/2012 in the prospective multicenter registry EVA-Reha (®) Cardiology. Changes in 13 indicators in the areas cardiovascular risk factors, physical performance and subjective health during rehabilitation were evaluated according to levels of severity. Changes were only rated for patients who needed a medical intervention. Additionally, the changes had to be clinically relevant. Therefore Minimal Important Differences (MID) were predefined. Ratings were combined to a single score, the multiple outcome criterion (MEK). RESULTS: The MEK was determined for all patients (71.7 ± 7.4 years, 76.9% men) and consisted of an average of 5.6 indicators. After risk adjustment for sociodemographic and clinical baseline parameters, MEK was used for center ranking. In addition, individual results of indicators were compared with means of all study sites. CONCLUSION: With the method presented here, the outcome quality can be quantified and outcome-based comparisons of providers can be made.
Assuntos
Pessoas com Deficiência/reabilitação , Cardiopatias/diagnóstico , Cardiopatias/reabilitação , Hospitalização/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde/normas , Garantia da Qualidade dos Cuidados de Saúde/normas , Idoso , Alemanha , Humanos , Avaliação de Resultados em Cuidados de Saúde/métodos , Garantia da Qualidade dos Cuidados de Saúde/métodos , Indicadores de Qualidade em Assistência à Saúde/normas , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Resultado do TratamentoRESUMO
UNLABELLED: Objective Patients who suffered from an acute coronary syndrome (ACS) boast a low exercise capacity (EC). To enhance EC is a core component of cardiac rehabilitation (CR). The aim of the study was to investigate predictors of exercise capacity to optimize the rehabilitation process in untrained subgroups. METHOD: 47 286 patients (mean age 64±11.62, 74.5% male) were enclosed in the TROL registry. All patients underwent a bicycle stress test at admission and discharge. The dependent variable for the univariate analysis and multivariate logistic regression was the increase of EC during CR, with a cutoff of 15 Watts (pre/post design). Furthermore comorbidities and physical activity before the index event were analyzed. RESULTS: Exercise capacity enhancement differs between active and inactive patients significantly (21.84 Watt vs. 16.35 Watt; p<0.001). While a male gender (OR 1.62 [95% CI: 1.51-1.74]) and physical activity before rehabilitation (OR 1.85 [95% CI: 1.75-1.97]) were positive, comorbidities and age (OR 0.82 [95% CI: 0.74-0.90]) were negative predictors. CONCLUSION: In cardiac rehabilitation settings special exercise training programs for elderly and comorbid patients are needed, to enhance their exercise capacity sufficiently.
Assuntos
Síndrome Coronariana Aguda/fisiopatologia , Síndrome Coronariana Aguda/reabilitação , Tolerância ao Exercício , Hospitalização/estatística & dados numéricos , Aptidão Física , Sistema de Registros , Síndrome Coronariana Aguda/epidemiologia , Distribuição por Idade , Teste de Esforço/estatística & dados numéricos , Feminino , Alemanha/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Prognóstico , Medição de Risco , Distribuição por Sexo , Resultado do TratamentoRESUMO
INTRODUCTION: Cardiac rehabilitation is designed for patients suffering from cardiovascular diseases or functional disabilities. The aim of a cardiac rehabilitation is to improve overall physical health, psychological well-being, physical function, the ability to participate in social life and help patients to change their habits. Regarding the heterogeneity of these aims measuring of the effect of cardiac rehabilitation is still a challenge. This study recommends a concept to assess the effects of cardiac rehabilitation regarding the individual change of relevant quality indicators. METHODS: With "EVA-Reha; cardiac rehabilitation" the Medical Advisory Service of Statutory Health Insurance Funds in Rhineland-Palatinate, Alzey (MDK Rheinland-Pfalz) developed a software to collect data set including sociodemographic and diagnostic data and also the results of specific assessments. The project was funded by the Techniker Krankenkasse, Hamburg, and supported by participating rehabilitation centers. From 01. July 2010 to 30. June 2011 1309 patients (age 71.5 years, 76.1% men) from 13 rehabilitation centers were consecutively enrolled. 13 quality indicators in 3 scales were developed for evaluation of cardiac rehabilitation: 1) cardiovascular risk factors (blood pressure, LDL cholesterol, triglycerides), 2) exercise capacity (resting heart rate, maximal exercise capacity, maximal walking distance, heart failure [NYHA classification], and angina pectoris [CCS classification]) and 3) subjective health (IRES-24: pain, somatic health, psychological wellbeing and depression as well as anxiety on the HADS). The study was prospective; data of patients were assessed at entry and discharge of rehabilitation. To measure the success of rehabilitation each parameter was graded in severity classes at entry and discharge. For each of the 13 quality indicators changes of severity class were rated in a rating matrix. For indicators without a requirement for medical care neither at entry nor at discharge no rating was performed. RESULTS: The grading into severity classes as well as the minimal important differences were given for the 13 quality indicators. The result of rehabilitation can be demonstrated in suitable form by means of rating of the 13 quality indicators according to a clinical population. The rating model differs well between clinically changed and unchanged patients for the quality indicators. CONCLUSION: The result of cardiac rehabilitation can be assessed with 13 quality indicators measured at entry and discharge of the rehabilitation program. If a change into a more favorable category at the end of rehabilitation could be achieved it was counted as a success. The 13 quality indicators can be used to assess the individual result as well as the result of a population--e. g. all patients of a clinic in a specific time period. In addition, the assessment and rating of relevant quality indicators can be used for comparisons of rehabilitation centers.
Assuntos
Cardiopatias/diagnóstico , Cardiopatias/reabilitação , Avaliação de Resultados em Cuidados de Saúde/métodos , Avaliação de Resultados em Cuidados de Saúde/normas , Avaliação de Resultados da Assistência ao Paciente , Indicadores de Qualidade em Assistência à Saúde/normas , Índice de Gravidade de Doença , Idoso , Algoritmos , Feminino , Alemanha , Humanos , Masculino , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e EspecificidadeRESUMO
On August 30, 2010, the German Network for Health Services Research [Deutsches Netzwerk Versorgungsforschung e. V. (DNVF e. V.)] approved the Memorandum III "Methods for Health Services Research", supported by the member societies mentioned as authors and published in this Journal [Gesundheitswesen 2010; 72: 739-748]. The present paper focuses on methodological issues of economic evaluation of health care technologies. It complements the Memorandum III "Methods for Health Services Research", part 2. First, general methodological principles of the economic evaluations of health care technologies are outlined. In order to adequately reflect costs and outcomes of health care interventions in the routine health care, data from different sources are required (e. g., comparative efficacy or effectiveness studies, registers, administrative data, etc.). Therefore, various data sources, which might be used for economic evaluations, are presented, and their strengths and limitations are stated. Finally, the need for methodological advancement with regard to data collection and analysis and issues pertaining to communication and dissemination of results of health economic evaluations are discussed.
Assuntos
Tecnologia Biomédica/economia , Custos de Cuidados de Saúde/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde/métodos , Modelos Econômicos , AlemanhaRESUMO
Oral anticoagulation using vitamin K antagonists has been established for over 50 years. Although it is highly effective in preventing thromboembolic incidents, its therapeutic control still remains problematic. Therefore, a computer-aided approach is recommended for deriving dosages. Up to now, the dosage is often based on the visual inspection of previous INR measurements, average weekly doses, and the INR target range. Statistical variations of measurement results and time-delayed effects of dosages, however, frequently result in the misinterpretation of data and suggest pseudo-trends. Treating physicians are not only responsible for determining the patient-specific maintenance dose, but must also respond to deviating INR values, overdosage or underdosage, initiate the oral anticoagulation therapy, and control the INR level in case of a new target range (bridging). Instructive examples are provided to illustrate the described difficulties. A computer-aided expert system is currently developed to ensure the therapeutic safety under the specified conditions. We present preliminary results from a study designed to validate mathematical models underlying such expert systems.
Assuntos
Anticoagulantes/uso terapêutico , Femprocumona/uso terapêutico , Administração Oral , Anticoagulantes/administração & dosagem , Anticoagulantes/metabolismo , Relação Dose-Resposta a Droga , Quimioterapia Assistida por Computador/métodos , Humanos , Coeficiente Internacional Normatizado , Cinética , Femprocumona/administração & dosagem , Femprocumona/metabolismo , SegurançaRESUMO
Many years of practical use and intensive scientific research have allowed vitamin K antagonists to become a cornerstone of treatment of internal diseases. Nevertheless, limitations in pharmacokinetics and -dynamics of vitamin K antagonists and the availability of new drugs in regard to a targeted anticoagulation therapy ask for a new review of the situation. Proof of effectiveness for the perioperative prophylaxis of venous thrombosis after hip and knee replacement has already been achieved for the direct thrombin inhibitor dabigatran etexilate as well as for the factor Xa inhibitors rivaroxaban und apixaban compared to low molecular weight heparins. These new drugs are now also investigated in patients with internal diseases. For the long-term application (6 or 12 months) concerning the treatment of venous thrombosis and/or stroke prophylaxis in patients with atrial fibrillation data is already available for the direct thrombin inhibitor dabigatran etexilate. Depending on its dosage its effectiveness in comparison with vitamin K antagonists is equal or even better without disadvantages in safety. However, vitamin K antagonists will remain the standard oral anticoagulation until open questions regarding e.g. insufficient therapy adherence (with termination rates up to 20%) or problems with drug interactions of the new competitive products have been completely answered.
Assuntos
Anticoagulantes/uso terapêutico , Proteínas Antitrombina/uso terapêutico , Complicações Pós-Operatórias/prevenção & controle , Acidente Vascular Cerebral/prevenção & controle , Trombose Venosa/prevenção & controle , Vitamina K/antagonistas & inibidores , Anticoagulantes/efeitos adversos , Proteínas Antitrombina/efeitos adversos , Artroplastia de Quadril , Artroplastia do Joelho , Fibrilação Atrial/complicações , Benzimidazóis/efeitos adversos , Benzimidazóis/uso terapêutico , Dabigatrana , Humanos , Morfolinas/efeitos adversos , Morfolinas/uso terapêutico , Pirazóis/efeitos adversos , Pirazóis/uso terapêutico , Piridinas/efeitos adversos , Piridinas/uso terapêutico , Piridonas/efeitos adversos , Piridonas/uso terapêutico , Rivaroxabana , Tiofenos/efeitos adversos , Tiofenos/uso terapêuticoRESUMO
The recommendations for anticoagulation in over 80 years old patients are based on the thromboembolic/bleeding risk relation. They add to the published recommendations for the specific indications. Low-molecular-weight heparin (LMWH) is used to prevent thromboembolism postoperatively. Compression stockings and/or intermittent pneumatic compression are used if bleeding risk is very high. The dose is increased starting at day two if the thromboembolic risk is very high. Bleeding and thromboembolic risks are re-evaluted daily. The antithrombotic therapy is adjusted accordingly. Prophylaxis of thromboembolism in patients with acute illnesses and bedrest is performed according postoperative care. Two-thirds of therapeutic doses of low-molecular-weight heparin are used to treat acute venous thromboembolism. Reduced renal function (creatinine clearance <30 ml/ min for most LMWHs or <20 ml/min for tinzaparin) should result in a further reduction of dose. Intensity and duration of prophylaxis of recurrent events with vitamin K antagonist or LMWH in malignancy follow current or herein described recommendations. Patients with atrial fibrillation are treated with vitamin K antagonists adjusted to an INR of 2-3 for prophylaxis of embolism. Further details of anticoagulant therapy should be in agreement with the national or international recommendations.
Assuntos
Anticoagulantes/efeitos adversos , Anticoagulantes/uso terapêutico , Hemorragia/induzido quimicamente , Tromboembolia/tratamento farmacológico , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Relação Dose-Resposta a Droga , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Coeficiente Internacional Normatizado , Testes de Função Renal , Neoplasias/complicações , Complicações Pós-Operatórias/tratamento farmacológico , Fatores de Risco , Prevenção Secundária , Meias de Compressão , Vitamina K/antagonistas & inibidoresRESUMO
Nearly every second patient, who needs an oral anticoagulation with vitamin K antagonists, is feasible to perform INR-self-management after participation in a structured teaching program. Patient self-testing or measuring the INR value by relatives or nurses would increase this method of control by the aid of telemedicine systems. An accurately, weekly measurement leads to an optimal therapeutic control of anticoagulation intensity, which results in an impressive risk reduction up to 50%. This depends not on the underlying heart disease and had been demonstrated in patients older than 60 years. Due to the small INR variability and therefore a higher percentage in target range, a lower anticoagulation intensity in patients with mechanical heart valve prosthesis should be justifiable. For the next decade, INR self-management/self-testing should be the method of choice, even direct thrombin inhibitors or factor Xa antagonists would be available. An advantage of INR self-management is the control of drug adherence, which could be an unresolved problem for new anticoagulants.
Assuntos
Anticoagulantes/uso terapêutico , Coagulação Sanguínea/fisiologia , Coeficiente Internacional Normatizado/métodos , Autocuidado , Idoso , Humanos , Pessoa de Meia-Idade , Monitorização Fisiológica/métodos , Monitorização Fisiológica/tendências , Reprodutibilidade dos Testes , Autocuidado/tendências , Telemedicina/tendênciasRESUMO
BACKGROUND: In long-term mechanically ventilated patients, dysphagia is a common and potentially life-threatening complication, which can lead to aspiration and pneumonia. Nevertheless, many intensive care unit (ICU) patients are fed by mouth without evaluation of their deglutition capability. OBJECTIVE: The goal of this work was to evaluate the prevalence of aspiration due to swallowing disorders in long-term ventilated patients who were fed orally in the ICU while having a blocked tracheotomy tube. METHODS: In all, 43 patients participated-each underwent a fiberoptic investigation of deglutition on the day of admission to the rehabilitation clinic. RESULTS: A total of 65 % of the patients aspirated, 71 % of these silently. There were no associations between aspiration and any of the following: gender, indication for mechanical ventilation (underlying disease) or the duration of intubation and ventilation by tracheotomy tube. However, the association between aspiration and age was statistically significant (p = 0.041). Aspirating patients were older (arithmetic mean = 70 years, median = 74 years) than patients who did not aspirate (arithmetic mean = 66 years, median = 67 years). CONCLUSION: Intubation and add-on tracheotomies can lead to potentially life-threatening swallowing disorders that cause aspiration, independent of the underlying disease. Before feeding long-term mechanically ventilated patients by mouth, their ability to swallow needs to be investigated using fiberoptic endoscopic evaluation of swallowing (FEES) or a saliva dye test, if a cuff deflation and the use of a speaking valve are possible during spontaneous respiration.
Assuntos
Transtornos de Deglutição/epidemiologia , Transtornos de Deglutição/prevenção & controle , Nutrição Enteral/efeitos adversos , Unidades de Terapia Intensiva , Pneumonia Aspirativa/epidemiologia , Pneumonia Aspirativa/prevenção & controle , Centros de Reabilitação , Traqueotomia/efeitos adversos , Desmame do Respirador , Fatores Etários , Idoso , Estudos Transversais , Feminino , Alemanha , Humanos , Assistência de Longa Duração , Masculino , Pessoa de Meia-IdadeRESUMO
Direct comparison of the utility of dipyridamole stress echocardiography and dobutamine stress echocardiography was performed to identify patients at risk of future cardiac events in 134 patients with suspected or known coronary artery disease. The predictive values of dobutamine and dipyridamole were remarkably similar.
Assuntos
Agonistas Adrenérgicos beta , Doença das Coronárias/diagnóstico por imagem , Dipiridamol , Dobutamina , Ecocardiografia/métodos , Teste de Esforço/métodos , Simpatomiméticos , Vasodilatadores , Doença das Coronárias/fisiopatologia , Seguimentos , Humanos , Valor Preditivo dos Testes , Prognóstico , Análise de Sobrevida , Fatores de TempoRESUMO
This study assessed and compared the diagnostic potential of submaximal exercise, transesophageal atrial pacing, dipyridamole, and dobutamine-atropine stress echocardiography tests shortly after acute myocardial infarction. In 121 study patients, 325 digital echocardiographic stress tests were attempted 10 to 11 days after acute myocardial infarction: 83 submaximal exercise tests, 121 high-dose dipyridamole echocardiography tests (DET), 69 transesophageal atrial pacing tests (< 150 beats/min), and 52 dobutamine tests, starting at 10 microgram/kg per minute, increasing stepwise to 40 microgram kg/min, and coadministering atropine in 12 patients (dobutamine-atropine stress echocardiography [DASE]). Results were correlated to a coronary artery diameter stenosis > or = 50% as determined by quantitative angiography. Feasibility to perform submaximal exercise echocardiography, atrial pacing echocardiography, DET, and DASE was 89%, 52%, 98%, and 88%, respectively. Atrial pacing was not tolerated by 18 patients and refused by 6 (9%). Severe but not life-threatening side effects were hypotension in DET (2%) and tachyarrhythmias in DASE (6%). Test positivity in multivessel disease with submaximal exercise, DET, and DASE was 55%, 93%, and 90%, respectively, and in 1-vessel disease 47%, 65%, 71%, and for atrial pacing, 82%, respectively. We conclude that submaximal exercise has limited sensitivity and atrial pacing limited feasibility. The pharmacologic stressors provide a useful, safe diagnostic approach: DET with slightly lower sensitivity in 1-vessel disease and DASE with insignificantly less feasibility.
Assuntos
Ecocardiografia/métodos , Teste de Esforço/métodos , Infarto do Miocárdio/diagnóstico por imagem , Atropina , Estimulação Cardíaca Artificial/efeitos adversos , Estimulação Cardíaca Artificial/métodos , Cardiotônicos , Constrição Patológica , Dipiridamol/efeitos adversos , Dobutamina/efeitos adversos , Humanos , Sensibilidade e Especificidade , VasodilatadoresRESUMO
Exercise testing is generally accepted for prognostic assessment of patients after infarction, but the prognostic value of transient myocardial ischemia during ambulatory electrocardiographic monitoring remains controversial. Of 281 consecutive postinfarction patients, 173 patients (132 men, 41 women) were prospectively studied with 24-hour Holter monitoring 14 +/- 5 days after acute myocardial infarction, and with submaximal exercise testing after 15 +/- 7 days. Patients with either conduction disturbances or pacemaker rhythm and 71 patients with digitalis medication were excluded. Myocardial ischemia was defined as horizontal or descending ST depressions or transient ST elevations > or = 0.1 mV with or without angina pectoris. The follow-up period was 1 year. Myocardial ischemia was observed in 40 patients (23%) during Holter monitoring, and 96% of the episodes were asymptomatic. Ischemia occurred during exercise testing in 46 patients (27%), two thirds of whom had no symptoms. Ischemia was detected by both methods (group A) in 19 patients (11%), with exercise testing only (group B) in 27 patients (16%), and with Holter monitoring only (group C) in 21 patients (12%). In 106 patients (61%), ischemia could not be ascertained at all. The 4 groups were comparable with regard to sex and age distribution, coronary risk factors, and medication. During follow-up, 50 patients (29%) experienced clinical cardiac events: 6 patients died, 7 had recurrent myocardial infarction, 14 developed unstable angina pectoris and required immediate revascularization, and 23 patients had recurrent but stable angina.(ABSTRACT TRUNCATED AT 250 WORDS)
Assuntos
Eletrocardiografia Ambulatorial , Teste de Esforço , Infarto do Miocárdio/complicações , Isquemia Miocárdica/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/mortalidade , Isquemia Miocárdica/etiologia , Prognóstico , Estudos Prospectivos , Recidiva , Análise de SobrevidaRESUMO
There is still controversy as to the manner in which Doppler-derived transmitral filling patterns change because of myocardial ischemia. To evaluate the effects of exercise-induced ischemia on Doppler-derived filling patterns, 28 patients were examined at rest and during three stages of supine bicycle exercise (0.5, 1.0, and 1.5 W/kg). The peak early (E) and integrated early (Ei) and peak late (A) and integrated late (Ai) diastolic flow velocities, as well as their ratios (E/A, Ei/Ai), were compared between patients with exercise-induced ischemia but no wall-motion abnormalities at rest (ischemia group, n = 13) and those with akinetic scars from previous infarction but no exercise ischemia (scar group, n = 15). Normal subjects with no evidence of heart disease served as a control group (n = 11). At maximal workload the ischemia group showed a significantly lower peak flow velocity at atrial contraction than the control and scar group (0.74 +/- 0.18 vs 1.08 +/- 0.25 and 0.89 +/- 0.19 m/sec, respectively; p < 0.05) and also a significantly lower flow velocity integral at atrial contraction (8.24 +/- 2.2 vs 12.81 +/- 4.8 and 11.32 +/- 3.6 cm, respectively; p < 0.05). Therefore, the atrial contribution to filling was diminished during ischemia (36.2% +/- 9.2% vs 47.3% +/- 6.4% and 48.4% +/- 13.8%, respectively; p < 0.05). By maintaining the early filling rate during ischemia, the reduced atrial contribution resulted in a significantly higher E/A ratio (1.48 +/- 0.31 vs 1.05 +/- 0.15 and 1.16 +/- 0.44, respectively) and Ei/Ai ratio (2.0 +/- 1.06 vs 1.09 +/- 0.26 and 1.24 +/- 0.79, respectively). The assessment of Doppler-derived transmitral filling during exercise-induced ischemia shows mainly early diastolic filling, which is in contrast to the profile of impaired relaxation usually associated with ischemia. Evidence of exercise-induced ischemia leading to greater increases in left atrial pressure suggests that transmitral filling patterns are more closely related to hemodynamic status than to diastolic function.
Assuntos
Ecocardiografia Doppler , Hemodinâmica , Valva Mitral/fisiopatologia , Isquemia Miocárdica/fisiopatologia , Esforço Físico , Idoso , Função do Átrio Esquerdo , Velocidade do Fluxo Sanguíneo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valva Mitral/diagnóstico por imagem , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/fisiopatologia , Isquemia Miocárdica/diagnóstico por imagem , Isquemia Miocárdica/etiologia , Pressão Propulsora PulmonarRESUMO
AIM: To investigate the frequency and prognostic impact of early recurrent ST-segment elevation after initial ST-segment resolution in patients with acute myocardial infarction who had been treated with intravenous thrombolysis. METHODS: Eighty-one patients with acute myocardial infarction underwent 24 h Holter monitoring of the infarct-related ST-segment elevation, at the initiation of thrombolytic therapy. Angiography was performed in 88% of the patients 9 +/- 4 days after infarction. RESULTS: Resolution of the ST-segment elevation during the first 4 h, suggestive of early reperfusion, occurred in 67 (83%) patients (group 1). Of these, 31 (46%) had subsequent re-elevations (group 1a), 26 during the first 4 h, and 20 later. Thirty-six (54%) patients had no recurrence of the ST-segment elevation (group 1b). During follow-up, patients in group 1a experienced more in-hospital reinfarctions (26 versus 6%, P = 0.04) and had a higher rate of occluded infarct-related vessels at angiography than patients in group 1b (40 versus 17%, P = 0.01). CONCLUSION: During the first 24 h after initiation of thrombolytic therapy, recurrences of ST-segment elevation are frequent in myocardial infarction patients with ECG signs of an initially reperfused infarct-related artery. Recurrence of ST-segment elevation indicates a higher risk of reinfarction during hospitalization and of long-term occlusion of the infarct artery.
Assuntos
Eletrocardiografia Ambulatorial , Infarto do Miocárdio/diagnóstico , Terapia Trombolítica , Grau de Desobstrução Vascular , Idoso , Vasos Coronários/fisiopatologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/tratamento farmacológico , Reperfusão Miocárdica , Prognóstico , Recidiva , RiscoRESUMO
BACKGROUND: It is essential to understand the pathogenesis of ischemic stroke to ensure rational acute therapy and secondary prevention. We wanted to know the distribution of pathogenesis in patients of a city hospital and the differences in risk factors, neurologic deficits, disability, and delay in clinical admittance. PATIENTS AND METHODS: During a period of one year, 222 patients (mean age 76.6 years; 59% women) with complete acute ischemic stroke were admitted and underwent complete clinical and diagnostic procedures: CCT/MRI; Doppler- and color-coded duplex and transcranial sonography; echocardiography; use of the NINCDS stroke scale and the Oxford disability scale; study of risk factors, and exploration of delay in admittance. RESULTS: The following percentages of etiologies were evident: 31% cardiogenic embolism (60% with atrial fibrillation), 13% microangiopathy, 9% macroangiopathy, 11% cerebellar or brain stem infarction, 18% more than one cause and 18% no cause found. The patients with cardiogenic embolism showed significantly the highest scores on the stroke scale and the disability scale and had the shortest delay in admittance (57% were admitted within 3 hours). CONCLUSIONS: In a city hospital, cardiogenic embolism is the main cause of ischemic stroke. These patients suffer significantly the most severe neurologic deficits, dependence, and requirement of daily nursing care. These patients have the shortest delay in clinical admittance and the best chance of benefitting from acute therapy and early secondary prevention.