[Cardiac rupture and tamponade in a pregnant woman with acute myocardial infarction]. / Pekniecie i tamponada serca u ciezarnej z ostrym zawalem serca.

A case is described of a 35-year old pregnant woman (38-th week, tertigravida) with an acute myocardial infarction (AMI). The diagnosis of anterolateral myocardial infarction was based on the clinical, biochemical, ecg and echocardiographical findings. Ventricular premature beats were observed in the tenth day of AMI: Delivery was accomplished by cesarean section without complications. In the second day after the cesarean section the patient died. On autopsy cardiac rupture, tamponade and fresh necrosis of the lateral wall was found.

[Arrhythmogenic right-ventricular dysplasia--a case report]. / Arytmogenna dysplazja prawej komory--opis przypadku.

A case of arrhythmogenic right ventricular dysplasia (ARVD) in a 28 year old man is reported. Diagnosis was based on ECG, echocardiographic and scintigraphic findings. Echocardiography and scintigraphy revealed an enlarged right ventricle and normal left ventricle. The abnormalities specific for ARVD were free wall motion abnormalities, particularly akinetic areas and microaneurysms . Ventricular tachycardia and premature ventricular contractions of left bundle branch block (LBBB) pattern were recorded. A titer against mycoplasma and concentrations of immunoglobulins were normal. Anti-++ smooth muscle antibodies were detected. The patient was treated with amiodarone . There were no clinical, echocardiographic and ECG features of ARVD in the patient's brother.

Effect of isolated proximal coronary stenotic lesions on distal myocardial perfusion during exercise.

This study tested the hypothesis that the absolute dimension of a coronary stenotic lesion is a more important determinant of its hemodynamic effect on regional myocardial perfusion during exercise than is relative percent stenosis. In 31 patients with an isolated lesion of the left anterior descending coronary artery, regional myocardial perfusion was determined from thallium-201 scans recorded in the left anterior oblique projection after symptom-limited treadmill exercise. Thallium-201 uptake in the distribution of the left anterior descending coronary artery was expressed as a ratio of thallium-201 uptake in the left circumflex artery distribution. Percent area stenosis, minimal cross-sectional area and mean diameter of each stenotic lesion were measured by computer-assisted cinevideodensitometric analysis of projected coronary arteriograms digitized in a 512 X 512 pixel matrix with 256 gray levels. Thallium-201 uptake in the left anterior descending coronary artery distribution, expressed as a ratio, correlated poorly (r = 0.65) with relative percent stenosis, but correlated significantly (r = 0.83; p less than 0.05) with absolute lesion area. For all 16 patients with reduced regional perfusion in the left anterior descending coronary artery distribution during exercise, lesion cross-sectional area was less than 1.8 mm2 (mean 0.9 +/- 0.6); for 13 of the 15 patients with normal distal perfusion, the area of the stenotic lesion was greater than 1.8 mm2 (mean 2.7 +/- 0.7; p less than 0.001). Percent coronary stenosis failed to predict flow-limiting lesions.(ABSTRACT TRUNCATED AT 250 WORDS)

Quantitative analysis of coronary arteriograms by microprocessor cinevideodensitometry.

A rapid microprocessor technique for measuring the cross-sectional area, diameter, and relative percentage stenosis of coronary atherosclerotic lesions by cinevideodensitometric analysis was developed and validated. Video images of projected 35-mm coronary arteriographic cine frames were analyzed from cinevideodensitometric profile curves recorded for the catheter shaft, normal artery, and stenotic segment. In radiographic phantom studies of calibrated, contrast-filled, plexiglass cylinders, cinevideodensitometric measurements correlated linearly with percentage relative stenosis (r = 0.98; SEE = 4.1%), diameter (r = 0.99; SEE = 0.12 mm), and cross-sectional area (r = 0.99; SEE = 0.32 mm2). In postmortem studies of two patients dying after coronary arteriography, cross-sectional areas of arterial segments measured by cinevideodensitometry correlated well (r = 0.99; SEE = 0.71 mm) with areas of acrylic resin casts of the coronary arteries. Intraobserver variability (r = 0.99; SEE = 2.6%) and interobserver variability (r = 0.96; SEE = 5.3%) of cinevideodensitometric measurements of coronary arteriograms were low. Additionally, percentage relative stenosis measured in the right anterior oblique projection correlated well with measurements in the left anterior oblique projection (r = 0.98; SEE = 0.11 mm2) of patients with eccentric stenotic lesions. Lastly, cinevideodensitometric measurements were significantly (p less than 0.05) more reproducible than caliper measurements. This inexpensive dedicated microprocessor system provides rapid cinevideodensitometric measurements of coronary arterial dimensions, without requiring manual tracing of arterial segments or the major expense of a main-frame computer system.

Phagocytic activity of peripheral blood leukocytes in bulls experimentally infected with IBR/IPV virus (bovid herpesvirus 1).

Functional status of peripheral blood leukocytes was evaluated in bulls infected experimentally with BHV 1. Results of the studies indicated extensive changes in mechanisms of phagocytosis which play significant role restricting spread of viral infection, particularly at the preliminary stage of the infection. Increase in serum antibody titer appeared as a result of a prolonged contact of BHV 1 with cells of the immune system of the organism. The studies, documenting changes in reactivity of peripheral blood phagocytic cells in BHV 1 - infected bulls, point to new possibilities of evaluating immune status in the cattle infected with the virus.