Chronic pericarditis and pericardial tamponade associated with ulcerative colitis.

Unlike other extraintestinal inflammatory manifestations of ulcerative colitis, cardiac involvement is infrequently reported and inadequately characterized, with only 9 previously reported cases of pericardial tamponade associated with inflammatory bowel disease. A 32 year old male with ulcerative colitis, treated with orally administered mesalamine for ten years, developed chronic pericarditis. Extensive clinical and laboratory evaluation failed to find any cause of the pericarditis other than the ulcerative colitis.

Divergent effects of oxygen therapy in four models of uncontrolled hemorrhagic shock.

Treatment with oxygen exerts beneficial effects and prolongs survival in hemorrhagic shock induced by controlled bleeding. We evaluated the effects of inhalation of 100% oxygen in four models of uncontrolled bleeding in rats: amputation of the tail, laceration of two branches of the ileocolic artery, incision of the spleen, and laceration of the lateral lobe of the liver. After tail amputation, oxygen caused a short and transient increase in mean arterial blood pressure (MABP; P < 0.