PubMed Health⌕ Search

Biomedical subjects

D Zannier-Marzari

Publications and source records attributed to D Zannier-Marzari.

4 recordsLinked to original sources
PubMed1986

[Perioperative myocardial infarct following aortocoronary bypass. Clinical aspects, causes, consequences].

Perioperative infarction is a significant factor of morbidity of coronary bypass surgery. The aim of this study was to review peri-operative infarction and its complications over a 10 year period (1974 to 1984) and to determine its consequences on left ventricular function and life expectancy. The material included 514 patients who underwent coronary bypass surgery. Perioperative infarction was defined as the association of a postoperative Q wave and increase in creatinine phosphokinase after the 24th postoperative hour: this diagnosis was made in 31 cases (Group A), 6 per cent of the series; 483 patients (Group B) had no signs of infarction. The necrosis involved the revascularised zone in 26 cases and other zones in 5 cases. The acute phase of infarction was associated with major complications in 9 patients of Group A. In 22 patients (70 per cent of cases) the initial evolution was uncomplicated. There was no significant difference in the number of patients with unstable angina between Groups A and B (52 per cent vs 67 per cent), with single vessel disease (25 per cent vs 28 per cent), double vessel disease (45 per cent vs 34 per cent) or with triple vessel disease (30 per cent vs 38 per cent). The average number of bypasses was higher in Group A (2.06 per cent vs 1.4 per cent, p less than 0.05), as was the duration of cardiopulmonary bypass (117 min vs 91 min, p less than 0.05) and of aortic clamping (45 min vs 31 min, p. less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)

Angina, Unstable↗
PubMed1985

[Critical study of the stress electrocardiogram after aortocoronary bypass, based on 95 coronary angiographic correlations].

This paper studies the correlations between the stress electrocardiogram and the angiographic findings after aorto-coronary bypass grafts. 95 correlations were established in 75 patients (coronary angiography and stress tests were performed on two occasions after the operation in 20 patients). 32 patients had a past history of myocardial infarction. The stress test was positive when the ST depression was equal to or greater than 1 mm, over more than 80 milliseconds. Four groups could be defined on the basis of the angiography: patient graft(s) with no residual stenosis; old or new coronary lesions; occlusion of one or more grafts; malfunction of the graft(s). The stress test and the coronary angiography were separated by a mean delay of 4.6 days. The stress test was positive in 43 cases, due to the residual postoperative stenoses in 63% of cases, due to occlusion of the graft(s) in 25% of cases and due to malfunction of the graft(s) in 9% of cases. In 3% of cases, the signs of ischaemia were due to an old infarct. The stress test was negative in 52 cases. This negative result corresponded to the 66% of cases with complete revascularisation of the coronary system; in 34% of cases, there were persistent angiographic abnormalities, consisting of uncorrectable coronary stenoses in half of the cases. When the coronary revascularisation was complete, the stress test was negative in every case. Residual coronary lesions were associated with a positive stress test in 66% of cases and with a negative test in 34% of cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Coronary Angiography↗