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간세포암의 고주파 열치료 후 재발 양상과 이와 관련된 인자
안병훈(Byeong Hoon Ahn),최문석(Moon Seok Choi),이준행(Jun Haeng Lee),임윤정(Yun Jeong Lim),홍일철(Il Chol Hong),최원혁(Won Hyeok Choe),이준혁(Joon Hyoek Lee),고광철(Kwang Cheol Koh),백승운(Seung Woon Paik),이풍렬(Poong Lyul Rhee) 대한소화기학회 2001 대한소화기학회지 Vol.38 No.5
Background/Aims: There were few reports about the recurrence and related factors after radiofrequency ablation (RFA) in unresectable hepatocellular carcinoma (HCC). We assessed the recurrence rate and its related factors after RFA in patients with HCC. Methods: Thirty-nine patients (32 males and 7 females) with unresectable HCC were treated with percutaneous ultrasono-guided RFA. They had solitary tumor ≤4 cm or multiple tumor (≤3 in number and ≤3 cm in diameter) without history of transarterial chemoembolization or percutaneous ethanol injection therapy within 6 months. Results: The complete necrosis rate was 91.4% with few significant complications. Local and remote recurrence of HCC were observed in 30.7% and 66% of the patients during follow-up period of median 17 months. One-year local recurrence rate was lower in tumor smaller than 2.5 cm than in tumor bigger than 2.5 cm (5.6% vs. 28.5%, p=0.01). It was also lower in single tumor than in multiple tumor (12% vs. 60%, p=0.04). One-year remote recurrence rate was lower in Child A than in Child B (43.4% vs. 66.7%, p=0.04). Conclusions: RFA results in a high rate of complete necrosis with few significant complications in unresectable HCC. The local recurrence was fewer in small, single tumor and the remote recurrence was fewer in patients with Child A. (Korean J Gastroenterol 2001;38:350-356)
최원혁,박유정,홍일철,이한철,박세훈,최성철,이효락,정인경,정재훈,민용기,이명식,이문규,김광원,김원석 대한내분비학회 2001 Endocrinology and metabolism Vol.16 No.2
MEN1 is characterized by the combined occurrence of tumors of the parathyroids, pancreatic islet cells and the anterior pituitary. Pancreatic islet cell tumors occur in 40% of MEN1 patients. Pancreatic polypeptidomas occur most commonly but they are asymptomatic. Gastrinomas are the second most common type. VIPomas are rare and there has been no report of a case in Korea so far. We encountered a case of pancreatic VIPoma in MEN Type I. A 49 year old man was referred from his local hospital presenting with a sudden onset of an explosive watery diarrhea of 3 months duration. Abnormal findings in his blood chemistry were hypercalcemia and hypokalemia. The ^99mTc-sestamibi sintigraphy showed an increased uptake in right lower parathyroid gland. Abdominal CT demonstrated a mass of 6×4 ㎝ in tail of the pancreas and multiple lesions in both hepatic lobes. Serum levels of VIP hormones were elevated. Subtotal parathyroidectomy and subtotal pancreatectomy were done. Postoperatively his symptoms were improved transiently, however the patient showed repetitive attacks of watery diarrhea. So in order to palliate his symptoms, an RF ablation of the metastatic liver masses was performed. After that therapy his clinical symptoms were reduced dramatically. Unfortunately, the patients condition worsened again. Despite of continuous octreotide therapy, interferon and two courses of combination chemotherapy, the hepatic metastases failed to regress and the patient died 10 months after the diagnosis of a metastatic VIPoma. This is the first report of pancreatic VIPoma in MEN type I in Korea
Glutaraldehyde 와 자동 세척기를 이용한 내시경 소독방법의 임상에서의 유용성
김영호,손희정,윤성원,최규완,이남용,백승운,이준행,고광철,이풍렬,이종철,송재훈,안병훈,김재준,최원혁,홍일철 대한소화기내시경학회 2001 Clinical Endoscopy Vol.22 No.6
Background/Aims: Safety of endoscopic procedures has been a major issue over the last 10 years. Most endoscopy units use 2% glutaraldehyde and automated endoscope reprocessors (AERs) for disinfecting gastrointestinal endoscopes. We attempted an in-use evaluation of the current reprocessing procedures. Methods: Thirty flexible endoscopes were randomly collected just after upper endoscopic examinations and were disinfected using 2% glutaraldehyde in an AER. Cultures were taken from biopsy channels (S-l), tip of the insertion tubes (S-2), umbilical cords (S-3), and angulation knobs (S-4). Results: In 63,3% (19/30) of endoscopes, there was no microbial contamination after disinfection procedures. The culture positive rates of S-l, S-2, S-3, and S-4 samples were 20,0%, 0.0%, 3.3%, and 20.0%, respectively. Microorganisms of 13 species were identified, but there was no pathogen related with reported infectious complications after endoscopic procedures. Conclusions: Current disinfection procedure using 2% glutaraldehyde and an AER appears to be very effective in decontaminating patient-used endoscopes. Low level microbial contamination of endoscopes after conventional reprocessing methods may not impose great risk on patients.