Search PubMed⌕ Search

Biomedical subjects

H B Shumacker

Publications and source records attributed to H B Shumacker.

At least 37 records · Page 2Linked to original sources
PubMed1978

Long-term follow-up of unusual ball-valve aortic substitute.

On March 19, 1962, prior to the availability of Starr-Edwards ball-valve prostheses for aortic substitution, a mitral valve turned upside down was implanted for marked calcific aortic stenosis. It worked well and the patient was in good health for 15 years. Late annular calcification and loosening of sutures with marked perivalvular regurgitation made valve replacement necessary 16 years after operation. The original valve was perfectly preserved.

Adult↗
PubMed1977

The management of stenotic and obstructive lesions of the aortic arch branches.

The stenotic internal carotid can be managed in a variety of ways and number of tests can be utilized for assessing the collateral blood flow. Except in unusual situations, carotid thromboendarterectomy with or without a patch graft is generally employed. Although some surgeons use no protective shunt at all, or only upon specific indications, intraluminal shunting is utilized extensively. Our preference is to employ the customary Javid shunt technic except in unusual circumstances that suggest that added safety may be assured by shortening to a matter of seconds the period of interruption of carotid flow. In such cases, we believe the temporary axillary-internal carotid intraluminal shunt is of considerable value. Although mediastinal and thoracic procedures and bypass grafts delivering blood from the ascending aorta are not needed nearly as often as they were formerly, they are essential in certain cases. They yield excellent results and carry small risk. Carotid-subclavian grafts have proved quite valuable in restoring pulsatile flow to the subclavian and carotid systems. Our preference, however, because of technical simplicity, is the carotid-axillary bypass procedure. Subclavian-subclavian and axillary-axillary grafts have been employed successfully. When a carotid-axillary bypass is feasible, we would choose this method instead and reserve the others for unusual anatomic-pathologic situations.

Adult↗
PubMed1977

Tricuspid atresia. A review of 68 cases.

Sixty-eight patients with tricuspid atresia were seen at Indiana University during the past 30 years. Long term survivors treated without operation emerged from our review. In these, there was a combination of tricuspid atresia and transposition of the great vessels.

Adolescent↗
PubMed1976

Embolization of caval umbrella. Discussion and report of successful removal from the right ventricle.

The first case of successful diagnosis and operative removal of a vena caval umbrella which had become detached and migrated to the right ventricle is reported. Complications from the employment of this device are discussed. In all cases of umbrella embolization to the right heart and pulmonary arterial tree, immediate operative removal is indicated. Precautions regarding umbrella insertion which minimize the likelihood of dislodgment and embolization are also mentioned.

Adult↗
PubMed1976

Temporary axillary-carotid shunting for unusual instances of carotid stenosis.

A method has been developed which entails the introduction of the larger end of a Javid shunt tube in the axillary artery and the other in the internal carotid with only momentary interruption of blood flow. The method of closing the incision after the thromboendarterectomy almost entirely eliminates a second period of carotid occlusion. This procedure may be useful in unusual instances in which it is believed advantageous to avoid even the relatively short occlusion periods usually necessary when using the standard intraluminal shunt technique.

Axillary Artery↗