Eight patients with coronary heart disease were studied during two periods of exercise separated by 30 min of rest; workload was increased in a stepwise fashion every minute of exercise up to a level that produced limiting symptoms of angina, fatigue, or dyspnea. The magnitude of ST-segment depression and the central aortic pressure were measured during exercise and recovery periods, and myocar...

OBJECTIVE To investigate the effects of spinal cord stimulation on myocardial ischaemia, coronary blood flow, and myocardial oxygen consumption in angina pectoris induced by atrial pacing. DESIGN The heart was paced to angina during a control phase and treatment with spinal cord stimulation. Blood samples were drawn from a peripheral artery and the coronary sinus. SETTING Multidisciplinary ...

Twenty-six men and women, aged 36-65 years, were studied 8-12 weeks after the first myocardial infarction with regard to silent ischemic ST-segment depression and heart rate by using 24-hour ambulatory electrocardiography and bicycle exercise testing. In 22 patients ambulatory ST-segment recordings revealed 81 episodes of ST-segment depression, including 34 (41.9%) painful and 47 (58.1%) painle...

To assess the relative prognostic merits of 15 clinical and 10 predischarge exercise test variables, 226 patients who had sustained an acute myocardial infarction were studied. A submaximal treadmill test was performed on 205 patients to a mean work load of 5.7 +/- 2.9 METS. Testing was performed an average of 11.7 (range 6 to 33) days after myocardial infarction. During the first year of obser...

BACKGROUND Myocardial ischemia attributed to coronary steal may occur in some patients receiving pharmacological coronary vasodilation. ECG ST-segment depression is a marker of myocardial ischemia in these patients, but the factors determining the presence or absence of ischemia are not well known. METHODS AND RESULTS To examine the angiographic, hemodynamic, and scintigraphic determinants of...

Introduction Evaluation of anxiety and depression in cardiac patients is an area of nursing practice that is frequently neglected. The aim of the study was to explore anxiety and depression in hospitalized patients with their first episode of acute myocardial infarction. Material and methods The study sample included 148 hospitalized patients who had a first episode of acute myocardial infarc...

In acute myocardial infarction depression of the ST segment in leads distant from those showing ST elevation has been considered to be "reciprocal" but might reflect local ischaemia. To examine this possibility 103 consecutive patients who underwent exercise testing early after myocardial infarction were reviewed. Treadmill exercise testing was performed a mean of 12 (range 5-30) days after inf...

Objective: Myocardial infarction is a life-threatening condition that occurs unexpectedly and can cause posttraumatic stress disorder (PTSD) symptoms. The aim of this study was to investigate the frequency predictors PTSD symptoms for patients with myocardial relationship between cognitions Method: This included 152 history infarction. were administered Impact Event Scale assess symptoms, Postt...

Introduction Septic patients with myocardial depression are routinely treated with dobutamine [1]. Whether this strategy is desirable is questionable, as catecholamines increase cardiac work, reduce myocardial efficiency, and are cardiotoxic [2]. We can accurately predict mortality in a 72-hour fluid-resuscitated rat model of faecal peritonitis as early as 6 hours, based on the degree of myocar...

OBJECTIVES We examined the prognostic significance of precordial ST segment depression among patients with an acute inferior myocardial infarction. BACKGROUND Although precordial ST segment depression has been associated with a poor prognosis, this correlation has not been adequately quantified, partly because of small sample sizes and methodologic limitations in previous studies. METHODS W...