• Journal of Chest Surgery
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• 제30권3호
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• pp.336-339
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• 1997

최근 흉부 대동맥의 수술적 치료가 과거에 비해 좋은 성적을 얻고 있다. 전 흉부 대동맥을 포함하는 대동맥류나 대동맥 박리증의 경우대개 두단계나세단계로나누어 수술하였다. 본원에서는 숲 대동맥을 포함한 드베키 타입 I 만성 대동맥 박리증 환자에 있어서 한번에 출 대동맥을 치환하는 수술을 시행하였다. 환자는 호흡 부전과 Marfan 환자의 특징적 외모를 갖고있는 25세 남자로 심한 대동맥 부전증과 만성 드베키 타입 I대동맥 박리증 진단하에 수술시행하였다. 수술소견상상행 대동맥이 매우 커져 있었으며 상행대동맥에 두 개의 내막 파열이 관찰되 었고 가혈관으로 부터 늑간 동맥들과 우측 신동맥이 혈공급을 받고있었다. 벤탈 술식과 함께 술 대동맥 치환술을 성공적으로 시행하였으며, 환자는 현재까지 큰 합병증없이 외래를 통해 추적 관찰중이다.

• Journal of Chest Surgery
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• 제49권sup1호
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• pp.44-52
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• 2016

Background: This study investigates the perception of the general public regarding the concentration to metropolitan, hospitals of cardiac and cerebrovascular surgeries, and the perceived public need for government policies to resolve this issue. Methods: A total of 800 participants were recruited for our telephone interview survey. Quota sampling was performed, adjusting for age and sex, to select by various geographic regions. Sampling with random digit dialing was performed; we called the randomly generated telephone numbers and made three attempts for non-responders before moving on to a different telephone number. Results: Our sample population was 818 participants, 401 men (49.0%) and 417 women (51.0%). Our data showed that 85.5% of participants thought that cardiac surgery and neurosurgery patients are concentrated in large hospitals in Seoul. The principle reason for regional patients to want to receive surgery at major hospitals in Seoul was because of poor medical standards associated with regional hospitals (87.7%). We found that a vast majority of participants (97.5%) felt that government policies are needed to even out the clustering of cardiac surgery and neurosurgery patients, and that this clustering may be alleviated if policies that can specifically enhance the quality and the capacity of regional hospitals to carry out surgeries are adopted (98.3%). Conclusion: Government policy making must reflect public desiderata, and we suggest that these public health needs may be partially resolved through government-designated cardiac and neurosurgery specialist hospitals in regional areas.

• Journal of Chest Surgery
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• 제50권3호
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• pp.177-183
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• 2017

Background: To improve postoperative outcomes associated with interstitial pneumonia (IP) in patients with lung cancer, the management of the postoperative acute exacerbation of IP (PAEIP) was investigated. Methods: Patients with primary lung cancer were considered to be at risk for PAEIP (possible PAEIP) based on a preoperative evaluation. The early phase of this study was from January 2001 to December 2008, and the late phase was from January 2009 to December 2014. In the early phase, chest computed tomography (CT) was performed for patients for whom PAEIP was suspected based on their symptoms, whereas in the late phase, chest CT was routinely performed within a few days postoperatively. The numbers of possible PAEIP cases, actual PAEIP cases, and deaths within 90 days due to PAEIP were compared between both phases. Results: In the early and late phases, surgery was performed in 712 and 617 patients, 31 and 72 possible PAEIP cases were observed, nine and 12 actual PAEIP cases occurred, and the mean interval from the detection of PAEIP to starting treatment was $7.3{\pm}2.3$ and $5.0{\pm}1.8$ days, respectively. Five patients died in the early phase, and one patient died in the late phase. Significantly fewer PAEIP-related deaths were observed in the late phase (p<0.05). Conclusion: Identifying patients at risk for PAEIP by routine postoperative CT examinations led to the early diagnosis and treatment of PAEIP, resulting in the reduction of PAEIP-related mortality.

• Journal of Chest Surgery
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• 제50권4호
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• pp.242-246
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• 2017

Background: Patent ductus arteriosus (PDA) ligation is usually performed by congenital cardiac surgeons. However, due to the uneven distribution of congenital cardiac surgeons in South Korea, many institutions depend solely on adult cardiac surgeons for congenital cardiac diseases. We report the outcomes of PDA ligations performed by adult cardiac surgeons at our institution. Methods: The electronic medical records of 852 neonates at Chung-Ang University Hospital, Seoul, South Korea from November 2010 to May 2014 were reviewed to identify patients with PDA. Results: Of the 111 neonates with a diagnosis of PDA, 26 (23%) underwent PDA ligation. PDAs were ligated within 28 days of birth (mean, $14.5{\pm}7.8days$), and the mean gestational age of these patients was $30.3{\pm}4.6weeks$ (range, 26 to 40 weeks) with a mean birth weight of $1,292.5{\pm}703.5g$ (range, 480 to 3,020 g). No residual shunts through the PDA were found on postoperative echocardiography. There was 1 case of 30-day mortality (3.8%) due to pneumonia, and 6 cases of in-hospital mortality (23.1%) after 30 days, which is comparable to results from other centers with congenital cardiac surgery programs. Conclusion: Although our outcomes may not be generalizable to all hospital settings without a congenital cardiac surgery program, in select centers, PDA ligations can be performed safely by adult cardiac surgeons if no congenital cardiac surgery program is available.

• Clinical and Experimental Reproductive Medicine
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• 제29권3호
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• pp.195-200
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• 2002

Objective : To investigate the expression of apoptosis related proteins and apoptotic cells on the human ovarian follicles. Materials and Methods: Thirty five Formalin-fixed paraffin-embedded human ovarian tissue blocks were selected from the surgical pathology files of the department of pathology, College of Medicine, Yonsei University, for the period from 1996 to 1998. All specimen were from premenopausal women aged from $32{\sim}45$. Ovarian tissues were collected from the patients performing hysterectomy for benign uterine diseases. Immunohistochemical staining was performed for the detection of DNA fragmented cell, Bcl-2, Bax, Fas and Fas-ligand. Results: Bcl-2 and bax were not expressed on the surrounding cells and oocyte of the primary, primordial and preantral follicles. Fas and Fas-ligand (Fas-L) were not expressed on the surrounding cells on the primordial and primary follicles. But expressed on the surrounding granulosa cells and oocyte in the primordial and primary follicles. In the healthy follicles, Bcl-2 was expressed on the granulosa cells, however, Bax was not expressed. DNA fragmented cells were expressed on the inner granulosa cell layer of atretic follicles. Conclusion: Fas, Fas-ligand, and Bax may be responsible for the follicular atresia and Bcl-2 may be involved in the follicular survival in the human ovary.

• Journal of Yeungnam Medical Science
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• 제3권1호
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• pp.215-219
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• 1986

영남대학교 의과대학 흉부외과학교실에서는 1986년 한해동안 111예의 개심술을 시행하였으며 그 결과는 다음과 같았다. 1. 전 111예중 선천성 심질환이 88예로 79.2%를 차지했고 후천성 심질환은 23예로 20.8%를 차지했다. 2. 환자의 연령은 선천성 심질환의 경우 생후 5개월에서 52세까지였고 후천성 심질환의 경우 14세부터 55세까지였다. 3. 남녀의 비는 선천성 및 후천성 심질환 모두 남자가 1.3배 많았다. 4. 선천성 심질환 88예중 심실중격결손증이 45예로 가장 많았으며 다음이 심방중격 결손증으로 16예였고 활로씨 4증후군이 14예였다. 5. 후천성 심질환은 심장판막질환이 대부분으로 23예를 차지했고 1예가 해리성대동맥류이었다. 6. 수술사망은 선천성 심질환에서 2예 후천성 심질환에서 1예로 총 사망율은 2.7%였다.

• Clinical and Experimental Pediatrics
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• 제52권2호
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• pp.251-255
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• 2009

가와사끼병은 급성 전신적 염증성 질환으로, 그 원인은 아직 밝혀지지 않았고, 임상양상은 비특이적으로 많은 소아의 감염성 질환이나 면역학적 질환에서도 볼 수 있다. 저자들은 발열과 경부 임파선병증을 보인 두 증례에서 경부 전산화단층촬영상 인두후부의 농양과 유사한 소견을 보였으나 항생제 치료에 반응하지 않으며 인두 후부의 흡인술에서도 농양이 없던 경우로, 시간이 지나면서 전형적인 가와사끼 증상의 출현과 함께 심초음파에서 방실 판막의 역류를 보여 늦게 진단할 수 있었다. 본 증례에서처럼 발열과 경부임파선병증으로 나타나는 경우에도 가와사끼병을 의심해야 하며, 이 경우 전산화단층촬영에서 인두후부의 농양 유사 병변은 위양성 소견으로 볼 수 있다. 경부임파선병증이 적절한 항생제치료에도 불구하고 발열 등의 증상이 지속되는 경우에는, 심초음파를 포함한 검사를 조기에 시행하여 불필요한 내과적, 외과적 치료를 줄여야 할 필요가 있겠다.

• 대한의용생체공학회:의공학회지
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• 제38권3호
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• pp.102-110
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• 2017

본 논문은 자석을 회전시켜 실시간으로 자기장을 변화시키고 그로 인해 특정 조건에서 산화철 나노입자를 side point(피부)보다 center point(심부)에서 더 많이 유도할 수 있다는 가능성을 제시하였다. 향후 연구로 유속에 따른 Critical Magnetic flux density, 시간에 따른 나노입자 축적량, 자기장과 산화철 나노입자의 상호작용을 고려한 실험 설계, 전자석 등을 이용한 자기장조절을 연구하여 실질적인 혈관에서 본 실험을 진행할 계획이다.

• Journal of Korean Neurosurgical Society
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• 제55권1호
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• pp.12-17
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• 2014

Objective : Anterior cervical discectomy and fusion (ACDF) is often complicated by subsidence, pseudoarthrosis, kyphosis, and graft donor site morbidities. To decrease the occurrence of these complications, various types of cages have been developed. We designed this retrospective study to analyze and compare the efficacy and outcomes of ACDF using double cylindrical cages (DCC) (BK Medical, Seoul, Korea) versus an anterior cervical plating system with autogenous iliac crest grafts. Methods : Forty-eight patients were treated with autograft and plating (plate group), and 48 with DCC group from October 2007 to October 2011. We analyzed construct length, cervical lordotic curvarture, the thickness of the prevertebral soft tissue, segmental instability, and clinical outcomes. Results : There were no significant differences between the two groups with regard to the decrease in construct length or cervical lodortic curvature at the 3-, 6-, and 12-month follow-ups. The prevertebral soft tissue was thinner in the DCC group than the plate group immediately after surgery and at the 3-, 6-, and 12-month follow-ups. The difference in interspinous distance on flexion-extension was shorter in the plate group than the DCC group at the 3- and 6-month follow-ups. However, there was no significant difference in this distance between the two groups at the 12-month follow-up. Conclusion : A double cylindrical cage is a good alternative for fusion in patients with cervical degenerative diseases; the surgical method is relatively simple, allows good synostosis, has less associated prevertebral soft tissue swelling, and complications associated with autografting can be avoided.

• Journal of Korean Neurosurgical Society
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• 제43권1호
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• pp.5-10
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• 2008

Objective : To evaluate the surgical outcomes of ventral interbody grafting and anterior or posterior spinal instrumentation for the treatment of advanced spondylodiscitis with patients who had failed medical management. Methods : A total of 28 patients were evaluated for associated medical illness, detected pathogen, level of involved spine, and perioperative complications. Radiological evaluation including the rate of bony union, segmental Cobb angle, graft- and instrumentation-related complications, and clinical outcomes by mean Frankel scale and VAS score were performed. Results : There are 14 pyogenic spondylodiscitis, 6 postoperative spondylodiscitis, and 8 tuberculous spondylodiscitis. There were 21 males and 7 females. Mean age was 51 years, with a range from 18 to 77. Mean follow-up period was 10.9 months. Associated medical illnesses were 6 diabetes, 3 pulmonary tuberculosis, and 4 chronic liver diseases. Staphylococcus was the most common pathogen isolated (25%), and Mycobacterium tuberculosis was found in 18% of the patients. Operative approaches, either anterior or posterior spinal instrumentation, were done simultaneously or delayed after anterior aggressive debridement, neural decompression, and structural interbody bone grafting. All patients with neurological deficits improved after operation, except only one who died from aggravation as military tuberculosis. Mean Frankel scale was changed from $3.78{\pm}0.78$ preoperatively to $4.78{\pm}0.35$ at final follow up and mean VAS score was improved from $7.43{\pm}0.54$ to $2.07{\pm}1.12$. Solid bone fusion was obtained in all patients except only one patient who died. There was no need for prolongation of duration of antibiotics and no evidence of secondary infection owing to spinal instrumentations. Conclusion : According to these results, debridement and anterior column reconstruction with ventral interbody grafting and instrumentation is effective and safe in patients who had failed medical management and neurological deficits in advanced spondylodiscitis.