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호중구감소증과 연관된 중증 감염 환자에게 과립구집락자극인자와 덱사메사손으로 가동화된 정상 공여자로부터 과립구 수혈치료
이병환 ( Byoung Hwan Lee ),이제중 ( Je Jung Lee ),김여경 ( Yeo Kyeoung Kim ),조상희 ( Sang Hee Cho ),신동현 ( Dong Hyeon Shin ),조덕 ( Duck Cho ),양동욱 ( Dong Wook Ryang ),박무림 ( Moo Rim Park ),정익주 ( Ik Joo Chung ),김형준 ( 대한내과학회 2003 대한내과학회지 Vol.64 No.4
Background : Granulocyte transfusions have been used to treat severe, progressive infections in neutropenic patients who fail to respond to antimicrobial agents. Although corticosteroid or granulocyte colony-stimulating factor (G-CSF) were previously used
위점막 순응 및 소장 손상으로 인한 만성 비스테로이드성 소염제 유발 위염증 백서 모델 수립의 어려움
이병환 ( Byoung Hwan Lee ),김나영 ( Nayoung Kim ),남령희 ( Ryoung Hee Nam ),이주엽 ( Ju Yup Lee ),이혜승 ( Hye Seung Lee ),이창희 ( Chang Hee Lee ),박지현 ( Ji Hyun Park ),이동호 ( Dong Ho Lee ) 대한소화기학회 2014 대한소화기학회지 Vol.63 No.6
Background/Aims: The prevalence of peptic ulcer disease has not decreased mainly due to an increase in the use of NSAIDs. This study was conducted in order to determine whether a chronic NSAID-induced gastric inflammation model could be established by repeated administration of NSAID. Methods: Indomethacin (10 mg/kg) was administered once per week for six weeks in 8- and 26-week rats and animals were sacrificed every week after administration. Gross ulcer index, histologic damage index, myeloperoxidase (MPO) activity, and mucus (glucosamine) levels were measured. Small bowel damage was also evaluated. Results: Gross gastric damage index showed a peak level at three weeks and then decreased slowly in the 26-week indomethacin group. Gastric mucosal glucosamine level increased in both the 8-week (p=0.038) and 26-week groups (p=0.007). In addition, gastric mucosal MPO level decreased in the 8-week group (p=0.018) but did not show a decrease in the 26-week group. Small bowel damage began to occur at three weeks during the schedule and eight of 36 rats (22.2%) died due to perforation or peritonitis of the small bowel in the 8- and 26-week indomethacin groups, respectively. Conclusions: Due to gastric adaptation and small bowel damage, repeated administration of NSAID to experimental animals may not be an adequate method for establishment of the chronic gastric inflammation model. (Korean J Gastroenterol 2014;63:341-347)
바이오피드백 치료에 의해 변실금 증상 호전을 보인 골반저 조율장애 소아
이병환 ( Byoung Hwan Lee ),김나영 ( Na Young Kim ),강성범 ( Sung Bum Kang ),정유정 ( Yu Jeong Jeong ),최태혁 ( Tae Hyuck Choi ),박영수 ( Young Soo Park ),이동호 ( Dong Ho Lee ) 대한소화기기능성질환·운동학회 2009 Journal of Neurogastroenterology and Motility (JNM Vol.15 No.1
The most common cause of childhood fecal incontinence is constipation, also called overflow fecal incontinence. Constipation-mediated fecal incontinence requires comprehensive treatment. Biofeedback is a technique that can be mastered by children to control anal muscles. However, biofeedback therapy for overflow fecal incontinence has not been effective than conservative treatment in children. Presently, an eight-year-old boy visited our hospital for daily fecal incontinence that had persisted after enteritis three years previously. Pelvic floor dyssynergia was diagnosed by anorectal manometry. Two kinds of biofeedback therapy directed at constipation and incontinence were applied alternatively in the absence of drugs. Paradoxical contraction was much improved after four constipation protocol biofeedback sessions and high squeezing pressure was maintained after seven incontinence protocol biofeedback sessions. Soiling frequency quickly decreased from 4-5 times daily to less than once per week after nine constipation protocol and seven incontinence protocol biofeedback sessions. Ultimately, the defecation pattern normalized. Two additional constipation protocol biofeedback sessions applied to a child due to assumption that children have low learning ability. Two years following the biofeedback sessions, no anorectal problems have recurred and school life is uneventful. This case demonstrates that pelvic floor dyssynergia in children can be successfully treated without the use of drugs by modified and flexible biofeedback therapy. (Kor J Neurogastroenterol Motil 2009;15:76-80)
3세 이하 소아에서 호흡기 바이러스와 아토피 소견이 바이러스성 천명의 재발에 미치는 영향
안병환 ( Byoung Whan Ahn ),이동환 ( Dong Hwan Lee ),강임주 ( Im Ju Kang ) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 2010 소아알레르기 및 호흡기학회지 Vol.20 No.3
목적: 3세 이하의 어린 소아에서 호흡기 바이러스와 관련한 천명의 경우 천명의 재발과 호흡기 바이러스 및 아토피 소견과의 관계는 분명치 않은 것으로 되어 있다. 따라서 저자들은 호흡기 바이러스와 관련한 천명을 가진 3세 이하의 소아에서 호흡기 바이러스 및 아토피 소견이 천명의 재발에 미치는 영향을 알고자 본 연구를 실시하였다. 방법: 2006년 3월에서 2009년 2월까지 3년간 대구파티마병원 소아청소년과에 상기도 감염 증상과 함께 갑작스런 호흡 곤란 기침 및 호기성 천명과 함께 흉부방사선 소견이 정상 혹은 과팽창 등으로 입원한 3세 이하의 환아에서 비인두 흡인물을 채취, 다중 역전사 중합연쇄반응 검사를 이용하여 한 가지 이상의 호흡기 바이러스가 검출된 340명을 대상으로 대상 환아를 6개월 이하 7-12개월, 13-24개월, 25-36개월의 네 가지 연령군으로 나누고 각 연령군을 첫발병군과 2회 이상 천명이 있었던 재발군으로 구분하여 각 군에서 바이러스 종류 및 아토피 소견을 비교하였다. 결과: 호흡기 바이러스는 RSV, PIV, RV의 순으로 나타났고 RV와 PIV는 천명의 재발과 상당한 관련이 있는 것으로 나타났으나 RSV는 천명의 재발보다 첫발병과 좀더 관련이 있는 것으로 나타났다. 65 IU/mL 이상의 혈청 IgE의 증가와 함께 흡입항원 감작 및 음식항원 감작은 천명의 재발과 밀접한 관련이 있는 것으로 나타났으나 이상의 호산, 4%이상의 호산구의 증가는 천명의 재발과 관련이 적은 것으로 나타났다. 양친의 천식병력 및 아토피피부염의 과거력은 천명의 재발과 관련이 있는 것으로 나타났으나 간접흡연은 천명의 재발과 관련이 적은 것으로 나타났다. 결론: 3세 이하의 어린 소아에서 호흡기 바이러스와 관련한 천명 환아에서 바이러스 종류는 천명의 재발에 다소다르게 영향을 주며 아토피 소견은 천명의 재발에 많은 영향을 미치는 것으로 나타났다. 그러나 본 연구는 입원 환자만을 대상으로 한 후향적 연구이므로 향후 이를 보완한 전향적 연구가 이루어져야 할 것으로 생각된다. Purpose: We studied to know the influence of respiratory virus and atopic characteristics on recurrence of virus-induced wheezing in children under 3 years of age. Methods: Between March 2006 and February 2009, 340 children who were hospitalized with symptoms of sudden onset of dyspnea, cough and wheezing after symptoms of acute upper respiratory tract infection and detected specific respiratory viruses by multiplex RT-PCR were enrolled. The data were analyzed according to age (≤6, 7-12, 13-24, and 25-36 months) as well as previous wheezing episodes (first or recurrent episode). Respiratory viruses and atopic characteristics were compared among individual groups. Results : The 3 commonly identified viruses were RSV (62.4%), PIV (15.6%) and RV (11.8%). PIV and RV were significantly associated with recurrence, but RSV was not significantly associated with recurrence. Food sensitization, aeroallergen sensitization, elevation of total IgE, history of atopic dermatitis and history of parent asthma were significantly associated with the recurrent episode, but serum eosinophil and passive smoking were not significantly associated with the recurrent episode. Conclusion: These findings show that specific respiratory viruses can have different influenceon recurrence and that atopy may be a risk factor for recurrence of wheezing, in children under 3 years of age with virus-induced wheezing.
하지 64 MDCT 혈관조영술에서 outrun 예방을 위한 검사방법
안병환(Byoung Hwan Ahn),옥승호(Seung Ho Ock),김순자(Soon Za Kim),권대철(Dae Cheol Kweon),권오성(Eun Kyoung Lee),이은경(Oh Seong Kweon),임흥선(Heung Seon Im),김명구(Myeong Goo Kim) 대한CT영상기술학회 2007 대한CT영상기술학회지 Vol.9 No.1
Purpose In present, MDCT has come into wide use. But outrun often occurs due to fast scanning and rotation time in lower extremity CT angiography with-64 MDCT. We studied the prevention to outrun in lower extremity CT angiography. Materials and Methods Between October 2006 and January 2007, during a period of 4 months, total 210 patients underwent a lower extremity CT angiography with 64 channel MDCT. We scanned patients from the level of lumber-spine three to feet in a single helical scan with 64 MDCT. Examination was scanned by each of different scanning methods. We changed the scan parameter in 3 ways. First, we set the delay time to 6.4 sec and the rotation time to 1sec. We called it to PG 1 (aorta slow). Second, we set the delay time to 20 sec and the rotation time to 0.4 sec. We called it PG 2 (aorta fast). Third method was same as PG 1 except of setting triggering level to popliteal artery. It was called for PG 3 (popliteal fast). The data from scanning was transmitted to 3D software program. Three-dimensional images were obtained using MIP(maximum intensity projection). Four radiologist evaluated all the results in reference to outrun, vein contamination, motion artifact and enhancement of vessel. Results In PG 1, there was no outrun. But it had some vein contamination and motion artifact because of long scan time. In PG 2, there was some outrun. But it had hardly vein contamination and motion artifact due to fast scan time. In PG 3, there was no outrun, too On the a:her hand, it had some vein contamination. Conclusion The best way to prevent outrun is program one (PG 1) or program three (PG 3) in lower extremity CT angiography with 64 MDCT. But each method has inherently a merit and demerit. We should use the protocol which is fit to patient history.
이병훈 ( Lee Byoung-hoon ),서대석 ( Suh Dae-seok ),이병환 ( Lee Byung-hwan ) 한국식품유통학회 2017 食品流通硏究 Vol.34 No.3
Recently, the nation with 53 countries signed 15 fta lower tariffs, and more of our export of agricultural products not trying to serve as an occasion. However, the recent global economic downturn, their products in many countries lower tariffs to protect the widespread and non-tariff barriers instead. In order to determine the types and characteristics of non-productive barriers to the tariff sector and effectively respond to non-tariff barriers, the non-tariff barriers will be quantitatively accurate and the corresponding level of strategy and direction should be measured accordingly. The study analyzed the non-tariff barriers of non-embeddable trade barriers to tariff holders, and analyzed the barriers to non-tariff barriers based on non-tariff barriers. The analysis shows that the distribution of the MFN tariff rate is 0~80 % to 80 %, whereas the tariff on non-tariff barriers is estimated to range from 0.3 % to 121.4 %, whereas the tariff barrier is greater than the tariff barrier.
대장내시경 전처치 4 L Polyethylene Glycol 단독요법과 2L Polyethylene Glycol 및 Sodium Phosphate 용액 병합요법 비교
이정원 ( Jung Won Lee ),김나영 ( Nayoung Kim ),차병효 ( Byung Hyo Cha ),이병환 ( Byoung Hwan Lee ),황태준 ( Tae Jun Hwang ),정유정 ( Yu Jeong Jeong ),최태혁 ( Tae Hyuck Choi ),김희섭 ( Hee-Sup Kim ),명형준 ( Hyung-Joon Myung ) 대한소화기학회 2010 대한소화기학회지 Vol.56 No.5
Background/Aims: Effective bowel preparation is essential for accurate diagnosis of colon disease. We investigated efficacy and safety of 2 L polyethylene glycol (PEG) solution with 90 mL sodium phosphate (NaP) solution compared with 4 L PEG method. Methods: Between August 2009 and April 2010, 526 patients were enrolled who visited Seoul National University Bundang Hospital for colonoscopy. We allocated 249 patients to PEG 4 L group and 277 patients to PEG 2 L with NaP 90 mL group. Detailed questionnaires were performed to investigate compliance, satisfaction and preference of each method. Bowel preparation quality and segmental quality were evaluated. Success was defined as cecal intubation time less than 20 minutes without any help of supervisors. Results: Both groups revealed almost the same baseline characteristics except the experience of operation. PEG 4 L group`s compliance was lower than PEG 2 L with NaP 90 mL group. Success rate and cecal intubation time was not different between two groups. Overall bowel preparation quality of PEG 2 L with NaP 90 mL group was better than PEG 4 L group. Segmental bowel preparation quality of PEG 2 L with NaP 90 mL group was also better than PEG 4 L group in all segments, especially right side colon. Occurrence of hyperphosphatemia was higher in PEG 2 L with NaP 90 mL group than PEG 4 L group. However, significant adverse event was not reported. Conclusions: PEG 2 L with NaP 90 mL method seems to be more effective bowel preparation than PEG 4 L method. (Korean J Gastroenterol 2010;56:299-306)