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Biomedical subjects

B M Pasternak

Publications and source records attributed to B M Pasternak.

14 recordsLinked to original sources
PubMed1984

Thoracic outlet syndrome. Electrophysiologic reappraisal.

Eighteen patients with thoracic outlet syndrome (TOS) were examined with somatosensory evoked potentials (SEPs). All the patients had normal median N9 (brachial plexus) amplitudes, whereas 12 had low-amplitude ulnar N9 potentials. The conduction in the ulnar nerve from N9 to N13 (brachial plexus to cord) was prolonged in seven of 18 patients. The combination of the ulnar N9 amplitude, the ulnar N9 to N13 conduction, and routine ulnar F-wave determination yielded positive quantitative diagnostic information in 17 of 18 cases. The SEPs appear to be a reliable, sensitive, quantitative, and non-invasive diagnostic tool in examining patients with TOS.

Evoked Potentials, Somatosensory↗
PubMed1980

Traumatic arterial spasm--rarity or nonentity.

Despite numerous opinions in literature questioning the existence of traumatic arterial spasm we believe that, although infrequent, the condition nevertheless occurs. A survey of the vascular literature on this subject appears to support this view. Spasm, when found, should be treated by resection of the arterial segment and its replacement with an appropriate graft unless spasm is relieved by vasodilation.

Adolescent↗
PubMed1979

Current status of surgery of the omentum.

The greater omentum is a unique organ with multipotential properties. A simple procedure converts it into a vascularized pedicle that may be utilized throughout the body. Knowledge of the possible applications of free or pedicled omental grafts will significantly add to the armamentarium of a clinical and experimental surgeon.

Digestive System Surgical Procedures↗
PubMed1979

Fungal infection of a vascular prosthesis.

Chronic debilitating hematological disorders and cytotoxic drugs may create conditions causing a predisposition to fungal infections of vascular grafts. Under such circumstances routine bacteriological investigations should be supplemented by specific fungal media cultures and microscopic examination of removed infected graft.

Aged↗
PubMed1978

Arteriovenous fistula and forward hypertension in the portal circulation.

The notorious predilection for rupture of splenic artery aneurysms in women of childbearing age is once more stressed by this case report. Although such ruptures usually result in a catastrophic interabdominal bleeding, in rare instances they lead to the formation of an arteriovenous fistula and consequent portal hypertension. Arterialization of the portal vein results in a progressive development of intrinsic hepatic morphologic changes and hepatoportal sclerosis, which further elevate the pressure in the portal system. This combination of pathophysiologic hemodynamic features closely resembles the original concept of Banti. He postulated that portal hypertension began with pathologic changes within the spleen which were associated with an increased blood flow through this organ. This led to increased flow and pressure in the portal venous system and ultimately cumulated in cirrhosis of the liver. This concept of the pathophysiology of portal hypertension has been universally abandoned, but it could serve as a model of the sequelae of an arteriovenous communication within the portal system.

Adult↗
PubMed1978

Progressive occlusive thrombarteriopathy: a case report.

A case of occlusive arterial disease of obscure nature and etiology is reported. The most puzzling aspect of this case was an apparent lack of correlation between the acute, progressive clinical course of the disease, especially in its final stages and the absence of any corresponding acute changes on microscopic examination of the affected vessels. Furthermore the combination of clinical features and pathologic findings--particularly the thrombotic involvement of the heart and the thoracic aorta by a process starting in the small and medium size vessels of the lower extremities--is not consistent with any of the recognized syndromes leading to a thrombotic occlusion of the arterial system. We conclude that the case represents an obscure syndrome of progressive occlusive thrombarteriopathy, perhaps related to a cumulative effect of heavy smoking, alcoholism, and drug addiction. It is possible that increased coagulability of the blood contributed to the thrombotic process but was not recognized by means of the hematologic studies performed.

Adult↗
PubMed1977

Uteroenteric fistula due to advanced extrauterine pregnancy.

A case of an uteroenteric fistula is reported, representing an unusual sequel of a long-standing ectopic pregnancy. A correct diagnosis could have been made preoperatively by visualization of the fragments of the fetal skeleton on abdominal roentgenogram in the area of the fistula.

Adult↗