Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0151744 (myocardial ischemia)
 31,282 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In cardiovascular diseases increased fibrinogen concentration is usually observed. Fibrinogen is involved in platelet aggregation, affects blood coagulation and has direct on the vascular wall. Epidemiological studies identify fibrinogen as a major independent risk factor for ischemic heart disease.
Acta Haematol Pol 1994
PMID:[Role of fibrinogen in cardiovascular diseases]. 799 75

Study was designed to investigate the effect of prolonged application of captopril on pulmonary ventilation in patients with chronic congestive heart failure (CCHF) without hypertension. Studies were carried out in 13 men aged 54-65 yrs with CCHF due to ischaemic heart disease. They were classified hemodynamically as III or IV stage according to the NYHA classification. Two periods of management were investigated. In the 1st period, lasting at least one month, cardiac glycosides, diuretics, nitrates, as well as diet and restricted physical activity were applied. In the 2nd period, lasting 21 days, additionally captopril was given in a daily dose of 2 x 12.5 or 2 x 25 mg depending on the drug tolerance. When the periods were terminated pulmonary ventilation was measured. The following indices were determined: FEF25, FEF50, FEF75, FEF25-75, FEV1, FVC,FEV1/FVC, SVC, FIVC, FIF25, FIF50, FIF75, FIF25-75. No significant effect of captopril upon pulmonary ventilation was found (p < 0.05). In any of the patients captopril-induced cough was not observed. It is concluded that prolonged management with captopril in patients with CCHF without hypertension has no disadvantageous influence upon pulmonary ventilation with exception of patients who are hypersensitive to the drug.
Pol Arch Med Wewn 1994 Feb
PMID:[Influence of prolonged application of captopril upon pulmonary ventilation in patients with chronic congestive heart failure]. 800 21

The study group included 30 middle-aged patients (mean = 47.0 +/- 0.6 years) with chronic heart failure (NYHA class III and IV) in the course of primary dilated cardiomyopathy and ischemic heart disease. Enalapril in a dose of 5-10 mg/day was added to previous therapy with digitalis and diuretics. The patients were submitted for noninvasive cardiac and biochemical studies initially and at 3 months. Twenty-four patients completed the planned therapy. In 5 patients the drug had been withdrawn due to hypotension, and one patient died on the fourteenth day of observation because of heart failure worsening. After enalapril therapy 18 patients improved in NYHA functional classes. All patients showed left ventricular improvement based upon left ventricular systolic time intervals, 18 patients showed reduced peripheral vascular resistance, and in 9 patients echocardiography revealed a significant improvement of EF, CI and mVCF. Renal function also improved based upon the decrease in urea and uric acid.
Pol Arch Med Wewn 1994 Jan
PMID:[Enalapril in treatment of severe heart failure in patients with dilated cardiomyopathy]. 819 Jun 55

The study was undertaken to assess the usefulness of TEE for evaluation of morphology and flow in coronary arteries. TEE (2D, spectral and color Doppler imaging) and coronary angiography were performed in 75 patients (pts)-41 with valvular heart disease and 34 with ischemic heart disease. Proximal coronary artery stenosis was detected by coronarography in 11 pts (9--left main coronary artery, 2--right coronary artery). TEE visualization of proximal coronary arteries was possible in all pts. Echocardiographic features of artery stenosis were: the narrowing of the vessel in 2D image (9 pts), high flow velocity spectral Doppler (4 pts, mean 135 cm/s vs 55 cm/s in normal arteries) and mosaic, turbulent flow in color Doppler (10 pts). Sensitivity and specificity of TEE for coronary artery stenosis detection was respectively 81%/98% for 2D imaging and 90%/100% for color Doppler. TEE is a new, noninvasive and safe method for the evaluation of proximal coronary arteries. Detection of LMCA stenosis prior to catheterization may enhance the safety of coronary angiography.
Kardiol Pol 1993 Aug
PMID:[Transesophageal echocardiograph in the evaluation of proximal segments of coronary arteries]. 823 Oct 9

To test the sensitivity and specificity of noninvasive tests for detecting myocardial ischemia, 78 patients undergoing cardiac catheterisation for suspected coronary artery disease (CAD) were studied in prospective blinded manner with exercise echocardiography (EE), ecg stress test (ET) and 24-hour Holter monitoring for analysis of ST-segment changes (HM). All noninvasive tests were repeated after one year follow-up period. Exercise was performed in a supine position using a bicycle ergometer. Real time 2-DE examinations were performed in the left lateral position: at rest, at the peak of exercise and immediately after exercise testing. The sensitivity and specificity of EE, ET and HM for detection of CAD were: 76%, 92%; 90%, 48%; and 80%, 71% respectively. In a group of 48 pts with the narrowing of coronary artery (CA) < 50%, the follow-up EE was negative in 45. In a group of 30 pts with significant narrowing of CA, 10 were asymptomatic within one year after PTCA or CABG; in 9 of them the follow-up EE as well as ET were negative. HM less correlated with clinical course in asymptomatic subjects: in 4 patients it was negative and in 6 - positive. The reminding 20 patients with CAD treated medically, with PTCA or CABG were symptomatic after one year. The follow-up EE, ET and HM studies were positive in 17, 19 and 17 cases respectively. We conclude that sensitivity of EE in diagnosis of CAD is comparable to ET and HM, but its specificity is higher.(ABSTRACT TRUNCATED AT 250 WORDS)
Kardiol Pol 1993 Sep
PMID:[Sensitivity of exercise echocardiography, electrocardiographic exercise test and 24-hour ekg monitoring in diagnosing and evaluating the efficacy of coronary disease treatment]. 823 Oct 12

A quantitative and qualitative analysis of ventricular arrhythmia was performed in 120 patients (64 men and 56 women, mean age 54 +/- 16) who suffered from arterial hypertension or congestive heart failure in the course of organic heart disease or ischaemic heart disease. 60 of them were treated with diuretics and the other 60 were control group. Neither antiarrhythmic drugs nor digitalis were used. There were no signs of left ventricular hypertrophy. Most patients treated with diuretics received potassium supplementation. Besides clinical examination all patients underwent 24 hours monitoring of Holter ECG. 38 patients treated with diuretics were evaluated before and after 6 months of therapy. In the diuretic group significantly higher percentage of patients with greater density of premature ventricular beats (count of premature ventricular beats [PVB]/100,000 heart evolutions) was observed. Number of patients with complex ventricular arrhythmia (Lown IVa and IVb) was also greater in this group. Serum levels of potassium and magnesium fell within the normal range, but the latter was significantly lower (p < 0.05) in those treated with diuretics.
Pol Arch Med Wewn 1993 Sep
PMID:[Ventricular arrhythmia in patients treated with diuretics]. 828 46

Coronary angiography as the "golden standard" in diagnostic imaging, guiding and assessing the results of interventional therapy has well known limitations inherent to the two dimensional imaging of three dimensional structures. Intravascular ultrasonography provides cross-sectional images of coronary artery, allowing an accurate calculation of cross-sectional luminal area and assessment of the degree of eccentricity of plaque and its structure including fissures, dissections and intracoronary thrombi. Case 1: Coronary angiography was performed in a 60 y. male patient with unstable angina revealing only a 40% stenosis in proximal LAD. The inconsistency of clinical presentation with angiography findings led to perform an intravascular ultrasound (IVUS) examination of LAD. The angiographic 40% stenosis was found to be over 80% on IVUS. Subsequent PTCA procedure led to a good IVUS and clinical result with no obvious changes in angiography. Case 2: PTCA of 80% Cx stenosis was performed with good immediate angiographic result, without dissection nor residual stenosis. However, IVUS immediately after PTCA assessed a dissection of the plaque with a flap protruding into the lumen. The patient was sent back to coronary angiography several hours later with clinical and ecg symptoms of acute myocardial ischemia. An important, occlusive dissection was found at the PTCA site. Angioplasty was performed again restoring a wide lumen at intervention site. IVUS was able to clarify the ambiguous angiographic findings with an important impact on interventional therapy. The immediate results of invasive procedures were readily and safely assessed by intravascular ultrasound.
Kardiol Pol 1993 Nov
PMID:[Coronary ultrasonography. More exact than coronary angiography? Description of two case histories]. 830 69

The local coronary flow in 42 patients (mean age: 59 +/- 9 years) with ischemic heart disease was assessed by means of an 0.018" intracoronary Doppler guidewire. Study population was divided into two groups: group I--"normal vessels" (diameter stenosis < 30%) and group II--"stenosis vessels" (diameter stenosis > 60%). Measurements of: averaged peak velocity (APV), diastolic-systolic velocity ratio (DSVR) were performed in proximal segments of normal vessels and proximally to stenosis in group II. APV and DSVR were recorded at rest (bas) and during papaverine induced hyperemia. Coronary flow reserve (CFR) was calculated as ratio hyperemic and resting values of APV. Mean value of APV at rest was highest for left main stem, lowest for venous by-passes (SVBG) but did not differ among three coronary arteries (LAD, LCX, RCA). CFR value was significantly higher for group I then for group II (2.75-3.3 vs 1.8-2.0) but did not differ significantly among particular arteries in both groups. Mean value of DSVRbas in both examined groups was lowest for right coronary artery and for SVBG (ca. 1.0) and did not change significantly during hyperemia. This value was significantly higher (ca. 2.0) for left coronary arteries (LAD, LCX) then for RCA and SVBG and significantly decreased after administration of papaverine.
Kardiol Pol 1993 Nov
PMID:[Doppler microprobe allows evaluation of local coronary circulation]. 830 70

The study group consisted of 8 men with congestive heart failure. They ranged in age from 33 do 63 years (mean 48). Three patients were in class III NYHA, five in class IV. Idiopathic cardiomyopathy was diagnosed in 6 patients, one individual displayed ischemic heart disease and one patient was after mitral and aortic-valve replacement despite a normally functioning prosthetic valve. L-dopa was given orally beginning with 250 mg every six hours until a total daily dose of 4.0 g was achieved with no side effects (patients additionally received 50 mg of pyridoxine hydrochloride). Afterwards L-dopa was withheld for 24-36 hours. Having completed this washout period, patients underwent right heart catheterization, with placement of a balloon-tipped thermodilution catheter in a pulmonary artery, so that balloon inflation allowed recording of the pulmonary capillary wedge pressure. Right atrial and pulmonary arterial pressures were monitored continuously. Systemic arterial pressure was measured by mercury manometer. Cardiac output was determined by the thermodilution technique. Rest and effort hemodynamic measurements were repeated before and one, three hours after administration of 1-dopa. The base-line hemodynamic values were consistent with the clinical presentation of severe congestive heart failure. The average cardiac index (CI-1/min/m2--rest--1.93; 25 Watt-3.1) and stroke volume index (SVI-m1/m2--rest--22.2; 25 Watt-32.0) were markedly lowered. Left ventricular filling pressure and pulmonary artery pressure were elevated. The systemic vascular resistance was significantly increased (SVR -j.W.--rest--22.7; 25 Watt-14.2). Administration of 1-dopa resulted in the increase in cardiac index and stroke volume index accompanied by a substantial reduction in systemic vascular resistance.(ABSTRACT TRUNCATED AT 250 WORDS)
Kardiol Pol 1993 May
PMID:[Hemodynamic effects of one administration of l-dopa in patients with left ventricular heart failure (introductory remarks)]. 836 41

Free oxygen radicals are highly active oxygen compounds contributing to several pathological states. A possible source of free oxygen radicals during reversible ischemic heart disease and mechanisms of their toxicity to the myocardium are discussed. Despite controversial results of clinical trials with the use of antioxidants in reducing an area of necrosis in the experimental myocardial infarction, it seems that free oxygen radicals play an important role in ischemic-reperfusion heart disease. Some promising results with the use of antioxidants (significant decrease in dyskinesis of ischemic left ventricular muscle and reduction of cardiac arrhythmias incidence) may be of clinical importance.
Pol Tyg Lek
PMID:[Role of oxygen free radicals in ischemic reperfusion lesions to the myocardium]. 841 39


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