Biomedical subjects
R O Heimbecker
Publications and source records attributed to R O Heimbecker.
Geraldine's kidney machine.
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Durability of fresh homograft.
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Limitations of blood conservation.
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Heart and heart-lung transplantation.
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Surgical technique for the management of constrictive epicarditis complicating constrictive pericarditis (the waffle procedure).
Epicardial constriction is a frequent accompaniment of constrictive pericarditis. The operative procedure presented here is an atraumatic, effective alternative to epicardial resection.
Long-term indwelling brain cannula.
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The Gordon Murray story.
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Progress in cardiac transplantation.
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Repair of refractory sternal dehiscence: a new technique.
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Left atrial myxoma: report of six cases and review of the literature.
Six left atrial myxomas were detected at one hospital in a 15-month period. These tumours are not as rare as was once thought and they frequently cause systemic problems. The diagnosis may easily be missed, but echocardiography is a simple way of establishing the diagnosis. Excision of the tumour usually results in marked symptomatic improvement.
Sequential triple-valve replacement in a Jehovah's Witness.
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Utilization of the free wall of the left ventricle for repair of septal rupture after infarction.
Two cases of ventricular septal defect following myocardial infarction are presented. An innovative technique of free ventricular wall rotation was used for surgical repair and is described here. The indications for the use of this technique are discussed, and its advantages over conventional methods of repair are reviewed.
Persistent sciatic artery: a case report.
A persistent sciatic artery was an incidental finding in a 29-year-old man who was being investigated for severe varicose veins and venous ulceration. The authors review the embryology and literature pertaining to persistent sciatic artery. Because it has a propensity for aneurysm formation and thrombosis they recommend that elective surgery be considered for this condition. In young asymptomatic patients the condition of the anomalous artery should be monitored by ultrasonography until operative intervention is indicated. The operative procedure should consist of occlusion with a balloon catheter or ligation of the persistent artery following by femoropopliteal bypass.
Ciguatera poisoning--snowbirds beware.
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Influence of alternate sources of bllod flow on the reactive hyperemia response in aorta-coronary saphenous vein bypass grafts in man.
Reactive hyperemia responses (RHR) of various magnitudes were obtained after release of a brief occlusion in six of 10 coronary bypass grafts. All of the vein grafts responded to an injection of sodium nitroprusside (50 microgram) directly into the open graft with an increase in blood flow that was always greater than the flow recorded after release of the occlusion. This response indicates that there were no flow-limiting stenoses and that the distal vascular beds were responsive to vasodilator stimuli. RHR's, expressed as percent repayment of calculated flow debt, were correlated significantly (r = 0.96, p less than 0.01) with the magnitude of the decrease in vein graft pressure measured during occlusion of the graft. It is suggested that the decrease in pressure is related to the amount of blood flow from alternate sources to the vascular bed during occlusion of the graft, and that this collateral flow is an important determinant of the magnitude of RHR in bypass grafts.