1.The Evaluation and Treatment of the Obstructive Biliary Disease through the Percutaneous Transhepatic Choledocoscopy (PTCS ).
Myoung Won KIM ; Hyeung Chul JO ; Jang Hyen JO ; Jin Ho CHOO ; Won Suck KIM ; Gee Chang OO ; Myoung Won GANG ; Yeun Geun IM ; Hyang Soon YEO ; Hong Bae PARK
Korean Journal of Gastrointestinal Endoscopy 1998;18(1):33-39
BACKGROUND/AIMS: Obstructive jaundice is developed from the cholangiocarcinoma, biiliary tract stone, biliary benign stricture and pancreatic head cancer and is rapidly progress to cholangitis or sepsis. So early decompression, accurate diagnosis and treatment are very important. Percutaneous transhepatic choledocoscopy (PTCS) and endoscopic retrograde choledocoscopy (ERCS) have been used for evaluation of the obstructive jaundice. We performed, through the PTCS, electrohydraulic lithotripsy (EHL) for biliary tract stone rernoval, biopsy for diagnosis of biliary stric and self expandible metalic coil stent (EndocoilTM stent, Instent Co.) insertion on biliary stricture to evaluate the usefullness of PTCS in patients with obstructive jaundice. METHODS: Between Auguest 1994 and September 1995, PTCS was performed in 37 patients with obstructive jaundice. First, percutaneous transhepatic biliary drainage (PTBD) with 7Fr. drainage tube was done. Three days later, we exchainged the 7Fr. drainage tube with 16Fr.. Seven days later, through the PTCS, we performed EHL, biopsy and EndocoilTM stent insertion.
Biliary Tract
;
Biopsy
;
Cholangiocarcinoma
;
Cholangitis
;
Constriction, Pathologic
;
Decompression
;
Diagnosis
;
Drainage
;
Head and Neck Neoplasms
;
Humans
;
Jaundice, Obstructive
;
Lithotripsy
;
Sepsis
;
Stents
2.The Effect of Sufentanil on Myocardial Function and Coronary Flow in an Isolated-Heart Rat Model.
Kyung Won SEO ; Myoung Gang SHIN ; Yoon Sook LEE ; Moon Seok CHANG ; Woon Young KIM ; Jae Hwan KIM ; Young Cheol PARK
Korean Journal of Anesthesiology 2006;51(2):216-221
BACKGROUND: Some opioids have been shown to attenuate an ischemia-reperfusion injury in an isolated-heart model. The aim of this study was to evaluate the effect of sufentanil on the cardiac function in isolated-heart models when given before and after prolonged periods of low flow ischemia. METHODS: Isolated rat hearts were stabilized for 30 minutes and subdivided into four groups (each n = 7). The control group was subjected to low flow ischemia (LFI 0.3 ml/min) of 5% dextrose water for 30 minutes, followed by perfusion with a modified Krebs solution at a constant pressure for 60 minutes. In the sufentanil groups, different sufentanil (12.5 mg/L, 25 mg/L, 50 mg/L) doses were administered with the modified Krebs solution after 30 minutes of stabilization until the end of the experiment with the exception of the LFI group. The left ventricular end systolic pressure (LVESP), dP/dt max, heart rate and coronary flow were measured. After reperfusion, the infarct size of all groups was measured. RESULTS: The control and the sufentanil groups had a lower LVESP, dP/dt max, coronary effluent flow and arrhythmia duration after ischemia and reperfusion than those before ischemia. The infarct sizes in the sufentanil groups were smaller than those in the control group. However the infarct sizes of the sufentanil groups were similar. CONCLUSION: Sufentanil reduces the infarct size but does not improve the post-ischemic functional dysfunction.
Analgesics, Opioid
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Animals
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Arrhythmias, Cardiac
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Blood Pressure
;
Glucose
;
Heart
;
Heart Rate
;
Ischemia
;
Models, Animal*
;
Perfusion
;
Rats*
;
Reperfusion
;
Reperfusion Injury
;
Sufentanil*
;
Ventricular Function, Left
;
Water