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J M Bergstein

Publications and source records attributed to J M Bergstein.

66 records · Page 4Linked to original sources

Failure of cobra venom factor to prevent the generalized Shwartzman reaction and loss of renal cortical fibrinolytic activity.

Previous studies have shown that renal cortical fibrinolytic activity is absent in rabbits given one or two injections of endotoxin. Using a fibrin slide technic, we have studied the effect of endotoxin on cortical fibrinolytic activity in rabbits depleted of terminal complement components (C3-C9) by cobra venom factor. The loss of cortical fibrinolytic activity induced by endotoxin is not prevented by pretreatment with cobra venom factor. Additionally, this complement depletion did not prevent development of glomerular fibrin deposition, cortical necrosis or thrombocytopenia in the generalized Shwartzman reaction.

Animals↗

Glomerular fibrinolytic activity following endotoxin-induced glomerular fibrin deposition in the pregnant rat.

The effect of endotoxin on glomerular fibrinolysis in pregnant and nonpregnant rats was studied using a fibrin slide technic. Glomerular fibrinolytic activity was present and light microscopy was normal following endotoxin or saline injection in nonpregnant rats. In pregnant rats, fibrin was regularly detected within glomerular capillaries 2 hours following administration of endotoxin but was completely removed within 48 hours. Glomerular fibrinolytic activity was present throughout this time interval. These studies suggest that glomerular fibrinolytic activity plays an important role in the removal of glomerular fibrin.

Animals↗

The effect of thorotrast and cortisone on renal cortical fibrinolytic activity in the rabbit.

Previous studies have shown that a single injection of endotoxin inhibits renal cortical fibrinolytic activity in the rabbit. This suggests that the initial injection of endotoxin may prepare for the generalized Shwartzman reaction by depletion of cortical fibrinolytic activity. A fibrin slide technic was used to determine whether Thorotrast(R) and cortisone prepare for the generalized Schwartzman reaction by a similar mechanism. Renal cortical fibrinolytic activity was inhibited following Thorotrast injection, but no inhibition could be detected following cortisone injection. This suggests that Thorotrast, like endotoxin, prepares for the generalized Shwartzman reaction by depletion of cortical fibrinolytic activity. Failure to demonstrate inhibition of lytic activity following cortisone injection may indicate that cortisone prepares for the generalized Shwartzman reaction by another mechanism, or that the fibrin slide technic was unable to detect quantitative changes in lytic activity.

Animals↗

Etappenlavage: advanced diffuse peritonitis managed by planned multiple laparotomies utilizing zippers, slide fastener, and Velcro analogue for temporary abdominal closure.

Etappenlavage is defined as a series of planned multiple operative procedures performed at a 24-hour interval. It includes a commitment to reexplore the patient's abdomen at the initial corrective operation. This is a report of a prospective study of 117 patients treated by etappenlavage for severe advanced suppurative peritonitis in 2 institutions. Etappenlavage was performed in 15% of all patients with operations for peritonitis. In these patients, the abdominal infection had progressed to an advanced stage of severe functional impairment. A total of 669 laparotomies were performed and the abdomen closed temporarily utilizing retention sutures (n = 45), a simple zipper (n = 26), a slide fastener (n = 29), and Velcro analogue (n = 17). An average of 6.1 procedures were necessary to control the infection. In 57% of the patients, additional complications were recognized and repaired after the initial operation. Patients were artificially ventilated for an average of 17 days. The median duration of therapy was 33 (range, 3-183) days. Twenty-eight patients died between days 3 and 71 (median, 9) after initiation of therapy. In 88%, uncomplicated wound healing was observed after wounds were closed definitely. In the last 17 patients, no complications were attributable to the use of 2 adhesive sheets of polyamide plus nylon or perlon for temporary abdomimal closure (Velcro-like artificial burr). APACHE II scoring predicted a median mortality of 47%. The actual mortality was 25%. Overall, the mortality of advanced diffuse peritonitis was reduced from a predicted 34-93% (APACHE II/SIS scoring) to 24%. Velcro analogue (artificial burr) was the most practical device for temporary abdominal closure.

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