No abstract available.
Incidence* ; Nurseries* ; Parenteral Nutrition, Total* ; Pharmacy* ; Sepsis*

No abstract available.
Angiocardiography* ; Contrast Media* ; Electrolytes* ; Osmolar Concentration* ; Plasma* ; Renin*

BACKGROUND: Bupivacaine is a potent, and commonly used, long acting local anesthetic. If accidentally injected into the systemic circulation, bupivacaine can cause lethal dysrhythmias and circulatory collapse. Attempts to treat bupivacaine induced cardiac toxicity have been varied and controversial, and they have not been very successful. The aim of this study was to investigate the electrophysiologic effects of bupivacaine in Purkinje fibers. METHODS: Effects of bupivacaine on the membrane potential were studied in 12 isolated canine Purkinje fibers. Purkinje fibers from ventricle were dissected and mounted in a tissue chamber perfused with Tyrode's solution. Transmembrane potentials recorded through glass microelectrodes filled with 3M KCI in the beating or quiescent Purkinje fibers during infusions of bupivacaine at concentratons of 3*10/-7M,10/-6M, 3*10/-6M,10/-5M, and 3*10/-5M. RESULTS: Bupivacaine reduced action potential druation in a dose-dependent manner. Bupivacaine produced a decrease in intracelullar sodium ion activity in driven(1Hz) and quiescent canine Purkinje fibers. Bupivacaine-induced hyperpolarizaton of diastolic membrane potential in quiescent Purkinje fibers was dose dependent, and the hyperpolarization by bupivacaine was attenuated by depolarization induced by high potassium extracellular concentration in part. CONCLUSIONS: These results suggest that bupivacaine decreases the fast inward sodium current, and inhibits pacemaker current in canine Purkinje fibers.
Action Potentials ; Bupivacaine* ; Glass ; Membrane Potentials* ; Membranes* ; Microelectrodes ; Potassium ; Purkinje Fibers ; Shock ; Sodium ; Sodium Channels

No abstract available.
Causality* ; Humans ; Infant, Newborn* ; Pneumothorax*

Pseudo-Kaposis sarcoma is a self-limited process associated with vascular malformations, without the neoplastic character of real Kaposis sarcoma. In most cases, it has been associated with an underlying congenital arterial venous fistula and chronic venous insufficiency, We present a case of Pseudo-Kaposis's sarcoma developing after plagment of arteriovenous fistula for hemodialysis in a patient wiith chronic renal failure and review cases reported in articles.
Arteriovenous Fistula ; Fistula* ; Humans ; Kidney Failure, Chronic ; Renal Dialysis* ; Sarcoma* ; Sarcoma, Kaposi ; Vascular Malformations ; Venous Insufficiency

Warty dyskeratoma is a rare, well-circumscribed epidermal tumor that frequently aries as a single lesion on the skin of the head or neck of middle aged or older persons. Its histopathological features include : suprabasilar clefting with villous proliferations of the connective tissue papillae into the clefts ; acantholytic and dyskeratoic epithelial cells,basilar hyperplasia, and hyperleratosis. We report three cases of warty dyskeratoma describing clinical and histochemical fea tures.
Connective Tissue ; Head ; Humans ; Hyperplasia ; Middle Aged ; Neck ; Skin

Trichuriasis is an intestinal infection of human beings caused by Trichuris trichiura, more commonly known as whipworm because of its whip-like appearance. It is characterized by the invasion of the colonic mucosa by the adult trichuris. It is prevalent throughout the world, especially in tropical areas. Diagnosis is made typically by the identification of characteristic barrel-shaped eggs in the feces, although adult worms may be seen rarely at sigmoidoscopy or colonoscopy. We report five cases of whipworm infection that was diagnosed on colonoscopic examination.
Adult ; Colon ; Colonoscopy ; Diagnosis* ; Eggs ; Feces ; Humans ; Mucous Membrane ; Ovum ; Sigmoidoscopy ; Trichuriasis ; Trichuris

No abstract available.
Echocardiography* ; Mass Screening*

Endoscopic injection sclerotherapy(EIS) is currently the most widely practiced method for treating and eradicating acutely bleeding esophageal varices in repeated sessions, but may be associated with some uadesirable local and systemic complications. Endoscopic variceal ligation(EVL), which consists of mechanical ligation and thrombosis of varices using elastic "0"- rings, has been recently developed as a non-operative alternative to EIS. We performed EVL in 16 patients who had recently bled from esophageal varices. Total 249 variceal ligations were performed during 71 separate EVL sessions. Three patients were actively bleeding at initial EVL; all of them were successfully controlled by emergency EVL. During the study period two patients died after initial EVL; one who refused te return for repeated EVL died from rebleeding, the other died from hepatic failure without any rebleeding. Rebleeding, following initiation of EVL, occured in 3 patients(l8.8%); two patients had bled from varices except previousiy ligated site and were successfully controlled by emergency EVL, remained one who refused any repeat endoscopy could not be confirmed the bleeding site. Varices were eradicated or reduced to grade I in 10(71.4%) of the 14 survivors by 14-28 ligations(mean, 19.5 ligations) in 3 -7 EVL sessions(mean, 5.4 sessions), During or after EVL, there were no complications, except transient mild dysphagia in 3 patients of 16 patients. These results indicated that EVL is a safe and effective method for treatmet of bleeding esophageal varices.
Deglutition Disorders ; Emergencies ; Endoscopy ; Esophageal and Gastric Varices* ; Hemorrhage* ; Humans ; Ligation* ; Liver Failure ; Survivors ; Thrombosis ; Varicose Veins

PURPOSE: To analyse unusual radiologic manifestations of colonic adenocarcinoma, and to correlate these with pathologic findings. MATERIALS AND METHODS: Radiologic findings of ten patients with atypical adenocarcinoma ofthe colon were retrospectively evaluated. The unusual radiologic findings were difined as terminal ileal involvement of the cecal mass, long segmental involvement of over 9cm, and exophytic tumor growth. radiologic and sonographic findings were compared with pathologic specimens obtained from surgical resection. RESULTS: Involvement of the terminal ileum was noted in three cases, long segmental involvement of over 11cm in five cases, and exophytic mass in two. Of three cases with thickening of the terminal ileum, two revealed the infiltration of cancer into the terminal ileum through the ileocecal valve, and the other revealed vascular congestion and edemaon microscopic examination. Five cases with long segmental involvement of over 11cm comprised one of cancer totally infiltrated through the submucosal and proper muscle layer, one of inflammatory thickening distal to thecancer, two of inflammatory change of pericolic fat and serosal adhesion and one of a large intraluminal fungatingmass. In the cases of exophytic mass, one with a larger extraluminal and a smaller intraluminal component revealed necrosis and abscess on pathologic examination, accounting for low attenuation on CT, whereas the other, with exophytic growth, disclosed abundant pools of mucin, resulting in low attenuation on CT. These two cases could notbe differentiated from submucosal tumors. CONCLUSION: Atypical colon cancer may have various manifestations, suchas thickening of the terminal ileum, involvement of a long segment, and an exophytically growing mass. An appreciation of the radiologic findings of this cancer may therefore help in differential diagnosis in cases simulating colitis or submucosal tumors of the colon, such as lymphoma or leiomyoma.
Abscess ; Adenocarcinoma* ; Colitis ; Colon* ; Colonic Neoplasms ; Diagnosis, Differential ; Estrogens, Conjugated (USP) ; Humans ; Ileocecal Valve ; Ileum ; Leiomyoma ; Lymphoma ; Mucins ; Retrospective Studies