British heart journal
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British heart journal · Jun 1977
Intra-aortic balloon assistance in cardiogenic shock after myocardial infarction or cardiac surgery.
Sixty-eight patients were referred for consideration of intra-aortic balloon assistance, 55 of whom were accepted. Thirty-one patients were in cardiogenic shock after myocardial infarction and the remaining 24 were cardiac surgical patients. Twenty-three of the myocardial infarct group were established on IABA and all 24 of the cardiac surgical patients. ⋯ The remaining 9 surgical patients were in cardiogenic shock in the early postoperative phase, though 5 showed initial haemodynamic improvement there was only one hospital survivor in this group. Intra-aortic balloon assistance was, therefore, of most value in patients dependent on cardiopulmonary bypass. The survival in patients with cardiogenic shock after myocardial infarction was marginally improved.
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British heart journal · Jan 1977
Structural study of pulmonary circulation and of heart in total anomalous pulmonary venous return in early infancy.
Quantitative morphometric techniques have been applied to the injected and inflated lung and to the heart in 9 infants with total anomalous pulmonary venous return dying with obstruction to pulmonary venous return. In 5 (mean age at death 55 days) pge 20 days) to an infradiaphragmatic site. Structural changes were present in the pulmonary circulation in all patients, even in the youngest, an 8-day-old child. ⋯ In the older patients with the latter anomaly dilation of the pulmonary arteries and right ventricle suggested that a large left-to-right shunt had preceded the onset of obstruction to pulmonary venous return and that the more severe right ventricular and septal hypertrophy in these cases might be the result of a longer duration of pulmonary hypertension. In contrast, in total anomalous pulmonary venous return to an infradiaphragmatic site it appears that obstruction to pulmonary venous return develops soon after birth and prevents a large increase in pulmonary blood flow, and thus neither the pulmonary arteries nor the right ventricle become dilated. In infants with total anomalous pulmonary venous return and obstruction to pulmonary venous return, it is striking how rapidly the pulmonary circulation develops new muscle.
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British heart journal · Dec 1976
Closure of pericardium after open heart surgery. A way to prevent postoperative cardiac tamponade.
Between July 1968 and December 1975, 821 patients underwent open heart operations. In 596 cases the pericardium was left open and in 225 the pericardium was closed. Forty-one patients in the open pericardium group required reoperation and 23 of these had tamponade. ⋯ Absence of tamponade in the closed pericardium group can be explained by the fact that blood from extrapericardial sources of bleeding cannot collect round the heart because the pericardium is closed. Thus closure of pericardium helps to prevent tamponade. Reoperations some months or years after the original operation are technically easier and less hazardous if the pericardium has been closed because the closed pericardium prevents the heart from becoming adherent to the back of sternum and also because there are fewer adhesions in the pericardial cavity.
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This report is based on information obtained from a questionnaire sent to major cardiac centres in the United Kingdom. This produced details of 39 pregnancies in 34 patients after valve replacement. The 39 pregnancies gave rise to 30 healthy babies. ⋯ This is probably largely attributable to fetal haemorrhage but there is also a risk of malformation caused by a teratogenic effect of warfarin. Experience gained in non-pregnant patients suggests that withholding anticoagulatns in pregnant patients with prosthetic valves would usually be undersirable but warfarin should be avoided. The advantages of biological valves were apparent in this series.
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British heart journal · Sep 1976
Coronary artery disease in patients dying from cardiogenic shock or congestive heart failure in the setting of acute myocardial infarction.
Pathological findings in the heart and particularly in the coronary arteries are reported from 70 patients dying from pump failure after acute myocardial infarction. Fifty of the patients had died in cardiogenic shock, the remainder from refractory congestive heart failure. Three-vessel disease (greater than or equal to 75% occlusion) was present in 68 per cent of the group with cardiogenic shock but in only 35 per cent of those with fatal congestive heart failure (P less than 0-02). ⋯ Whereas patients with cardiogenic shock generally showed severe disease over a long segment in all coronary arteries, in 60 per cent of those with congestive heart failure there was only local severe narrowing of the right coronary artery with little or no narrowing of the peripheral part. Similarly, 60 per cent of those with congestive heart failure had less than 75 per cent narrowing in the left circumflex artery. These anatomical findings may be of relevance with regard to desirability of acute coronary bypass surgery in patients with pump failure after acute myocardial infarction.