• Archives of Plastic Surgery
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• 제35권6호
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• pp.698-702
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• 2008

Purpose: Basal cell carcinoma is one of the most common cancers in the western population and the annual incidence rate is still on an increasing course. In Asian countries such as Korea, the incidence of basal cell carcinoma is reported to be remarkably low but is estimated to be in a steep increase nowadays. This study was to analyze the recent clinical trends of basal cell carcinoma in Korea by reviewing a single institution's experience. Methods: Throughout an 11-year period, the surgical excision of 143 cases of basal cell carcinoma was performed in our department. General data of these cases such as the primary site of cancer, age and sex of the patient, operative methods, recurrence rate were reviewed retrospectively. Results: Among the 143 patients included in this study, 82 patients were men and 61 patients were women. The ages ranged from 27 to 89 years with a mean age of 64.0 years. The head and neck region was the most frequently involved primary site for the cancer as 95.1% of the total cases occurred in this area. Especially the nose and perinasal area were the most frequent region, which was followed by the periorbital area, cheek, and perioral area. During this study period, 9 cases showed recurrence of the cancer as the overall recurrence rate was 6.3%. Conclusion: Gradual increase in the incidence of basal cell carcinoma was demonstrated in this study. Basal cell carcinoma showed high incidence in the old-age population as 68.5% of the total patients were more than 60 years of age. High recurrence rate was noted in the nasal region especially after local flap reconstruction. A more cautious approach is to be required when handing such high risk lesions. Multiple factors such as extended life span, increased outdoor leisure activity and exposure to sunlight, higher accessibility to medical services and increased understanding of the public about skin cancer are assumed to be the main reasons for this increase of basal cell carcinoma.

• Archives of Plastic Surgery
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• 제36권4호
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• pp.437-444
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• 2009

Purpose: Transgender is a disorder of gender identity, who have appropriate chromosomal, hormonal and anatomical characteristics corresponding to their sexual phenotype but feel strongly with respect to their sexual identity, that they belong to the opposite sex. There is a persistence discomfort and sense of inappropriateness about one's assigned sex in a person who has reached puberty. Transgender is a psychiatric problem, but surgical method provides more satisfactory adjustment for patients. In gender reassignment surgery for female to male transgender, mastectomy, nipple reduction, hysterectomy, oophorectomy and phalloplasty are included. And as the final operation, recommended for scrotoplasty and artificial testes insertion. So we investigated the necessity and method of scrotoplasty in the final operation of female to male transgender. Method: The authors have long term follow-up of 75 cases female to male transgender during January, 1991 to February, 2008. Among them, 13 cases were evaluated in this study. During phalloplasty, the labium major skin preserved. And this labium majoral skin flap was made for the neoscrotum. At least six months later, artificial testes were inserted in neoscrotum with local anesthesia. Middle sized (3 cm diameter) artificial testes(silicon gel or carving soft silicone implant) were used because of the limitation of the neoscrotum. We evaluated the questionnaire and interview about the postoperative satisfaction in configuration of reconstructed scrotum, and the necessity of operation, the postoperative psychosocioeconomic improvement and limitation of body exposure activities such as swimming, public bathing. Results: Based on this study, satisfaction of reconstructed scrotum after scrotoplasty was improved(92%). The necessity of scrotoplasty was in 92.3% and the postoperative psychosocioeconomic well - being improvement was 77% in answers. Less limitation of activities requiring body exposure was 54% in answers. Most of the patients were satisfied with the results of surgical operation inspite of the operative procedure had some postoperative complications. Conclusion: This study was reported that the scrotoplasty in female to male transgender is not only a conversion of external genitalia but also an improvement of psychosocial state. Most patients sincerely hope to this operation, so we improve our surgical method for more good results.

• Archives of Plastic Surgery
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• 제44권6호
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• pp.482-489
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• 2017

Background Polydeoxyribonucleotide (PDRN) is known to have anti-inflammatory and angiogenic effects and to accelerate wound healing. The aim of this study was to investigate whether PDRN could improve peripheral tissue oxygenation and angiogenesis in diabetic foot ulcers. Methods This was a prospective randomized controlled clinical trial. Twenty patients with a non-healing diabetic foot ulcer were randomly distributed into a control group (n=10) and a PDRN group (n=10). Initial surgical debridement and secondary surgical procedures such as a split-thickness skin graft, primary closure, or local flap were performed. Between the initial surgical debridement and secondary surgical procedures, 0.9% normal saline (3 mL) or PDRN was injected for 2 weeks by the intramuscular (1 ampule, 3 mL, 5.625 mg, 5 days per week) and perilesional routes (1 ampule, 3 mL, 5.625 mg, 2 days per week). Transcutaneous oxygen tension ($TcPO_2$) was evaluated using the Periflux System 5000 with $TcPO_2/CO_2$ unit 5040 before the injections and on days 1, 3, 7, 14, and 28 after the start of the injections. A pathologic review (hematoxylin and eosin stain) of the debrided specimens was conducted by a pathologist, and vessel density (average number of vessels per visual field) was calculated. Results Compared with the control group, the PDRN-treated group showed improvements in peripheral tissue oxygenation on day 7 (P<0.01), day 14 (P<0.001), and day 28 (P<0.001). The pathologic review of the specimens from the PDRN group showed increased angiogenesis and improved inflammation compared with the control group. No statistically significant difference was found between the control group and the PDRN group in terms of vessel density (P=0.094). Complete healing was achieved in every patient. Conclusions In this study, PDRN improved peripheral tissue oxygenation. Moreover, PDRN is thought to be effective in improving inflammation and angiogenesis in diabetic foot ulcers.

• 한국임상수의학회지
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• 제31권5호
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• pp.425-429
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• 2014

식욕부진, 호흡부전, 또는 비출혈을 보이는 두 마리 개가 내원하였다. 신체검사에서 호흡곤란, 개구호흡 및 커다란 구개 종양을 확인하였다. 신체검사 중 2 번 증례에서 호흡부전으로 인한 심정지가 발생하였고 심폐소생술과 산소 공급을 통해 안정화 되었다. 1 번 증례의 CT 촬영에서 경구개 연구개를 포함하는 구강 인두, 인두 내 입구, 인후두 부위의 종양을 확인하였다. 연하곤란 및 호흡부전 개선을 위해 보호자 동의 하에 완화 수술을 결정하였다. 종양 제거 후 발생한 결손 부위 재건을 위해 구강 내 점막을 사용하여 회전 및 전진 피판술과 양측 90o 자리바꿈 피판술을 1 및 2 번 증례에 각각 적용하였다. 조직 검사 결과, 두 마리의 개 모두에서 무멜라닌 색소성 흑색종이 진단되었다. 수술 후 7 일째 두 마리 모두에서 정상 연하와 호흡이 확인되었다. 수술 후 4 주째 1 번 증례의 수술 부위에서 재발된 종양이 관찰되었다. 보호자가 추가적인 치료를 원하지 않았고, 연락 두절로 인하여 수술 후 2 개월 이후의 확인은 불가능하였다. 수술 후 3 주째 2 번 증례의 신체검사 및 방사선 촬영에서 국소적인 재발 및 전이는 확인 되지 않았다. 수술 후 7 주째 유선상으로 확인한 결과, 2 번 증례에서 원인불명의 갑작스러운 사망이 확인되었다.

• 대한골관절종양학회지
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• 제11권2호
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• pp.141-147
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• 2005

목적: 악성 흑색종의 치료 중 가장 중요한 것은 외과적 전절제술이며, 수술시 광범위 절제술을 시행한다. 저자 등은 광범위절제와 면역화학요법을 시행한 후 각 병기별 5년 생존율을 알아보고 예후에 영향을 주는 요인을 주는 요인들을 분석하고자 한다. 대상 및 방법: 1995년 3월부터 2003년 8월까지 악성 흑색종으로 진단 받았던 35명(남자 17명, 여자 18명)을 대상으로 광범위절제술과 면역화학요법을 시행한 후 추시 관찰하였다. 절제술은 종양의 크기나 피부층의 침범정도와 상관없이 종양의 변연으로부터 2 cm으로 하였고, 절제술 후 덮이지 않는 피부 결손부는 피판 이식술이나 전층 피부 이식술을 이용하였다, 면역화학요법으로는 dacarbazine (DTIC) 400 mg과 인터페론-${\alpha}$ 300만 IU를 병용 투여 하는 방법을 사용하였다. 면역화학요법은 III기 이상의 환자에게 시행하였고, 병기는 2002년 개정된 AJCC 병기를 이용하여 판정하였다. 또 이들 환자들에 대해 국소재발과 국소전이, 그리고 원격전이여부를 조사하였고, 각 병기별 5년 생존율을 조사하였다. 결과: 발생부위는 족부가 15명(42.8%)으로 가장 많았고, 족관절부 5명(14.2%), 하퇴부 2명(5.7%), 대퇴부 2명(5.7%), 수부에 5명(14.2%)이었다. 병기별 발생빈도는 IA 8명(22.8%), IB 9명(25.7%), IIA 4명(11.4%), IIB 2명(5.7%), IIIA 1명(2.8%), IIIB 2명(5.7%), IIIC 2명(5.7%) 그리고 IV기는 7명(20.0%) 이었다. 각 병기별 5년 생존율은 I기에서 94.1%, II기에서 66.8%, III기에서 40%, IV기에서 14.3%로 나타났다. 결론: 악성 흑색종은 III기 이상에서는 5년 생존율이 낮았다. 악성 흑색종의 치료는 초기에 진단하여 병기에 따라 치료의 방법을 달리하므로 수술전 병기의 확인이 매우 중요하다. 광범위 절제연에 대해서는 종양 두께에 따라 1~3 cm의 절제연으로 광범위 절제를 권유한다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제25권4호
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• pp.281-294
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• 1999

Vasospasm causes microvascular surgery to fail as a main factor in the loss of transferred flap dye to the diminution of blood flow in reconstruction surgery. Although there has been extensive research to resolve the vasospasm problem, no one has reached an ideal solution to date. However, cryotherapy, which is often used for destruction of tumor lesions, is being presented as a new way of releasing vasospasm. After making a histomorphometric measurement on vasodialation during the course of 1, 3 and 7 days, 2 and 4 weeks, and 5 months periods and observing the change of blood vessel in a histologic, immunohistochemical, and scanning electronic microscopic approach, the results were as follows : 1. Vascular inner diameters of the experimental 1 and 3 days groups were measured $476.3{\pm}28.20{\mu}m$, $497.15{\pm}48.79{\mu}m$ respectively showing statistically meaningful vasodilation(P<0.05), which continued by the experiment 4 weeks group. However, in the experimental 5 months group, the vascular inner diameter appeared similar to the control groups. Even though the thickness of smooth muscular layers come out to be thinner in all the experimental groups compared to the control group, it was difficult to find any statistical meaningfulness. In addition, the vascular external diameters of every experimental groups were shown to be longer than the control group. 2. In light microscopic view, severe injury was evident on the smooth muscular layer cell from the experimental 1 day group, started recovering partially from the experimental 7 days group, and was mostly restored in the experimental 4 weeks group and layer of adventitial stripping were nearly recoverd 2 weeks group. 3. The PCNA positive cells of smooth muscular layer were observed from the experimental 7 days group and had a tendency to increase by the experimental 2 weeks group. In the experimental 4 weeks and 5 months group, the number of PCNA possitive cells observed was comparable to the control group. 4. ${\alpha}$-SMA level of smooth muscular layer cells, having been significantly lower than the control group in the severly damaged experimental 1 day group. It was seen to be increased in the experimental 7 days group and turned out to show similar ${\alpha}$-SMA level in 4 weeks to the control group. 5. In the view of SEM, the endothelial cells were destructed and falling off, and also present the appearance of flattening in the experiment 1 day group. The endothelial layer cells started partially recovering from the 7 days group after the freezing injury. On 4 weeks and 5 months, the endothelial cells were fully coverd the damaged area, also it's appearance is similar to control group. In conclusion, the vascular freezing after the removal of adventitia caused damages to smooth muscular layer cells, and brought about vasodilation, which continued by the 4th week. The smooth muscular layer cells started partially reviving from the 7rd day after the damage by vascular freezing, and recovered their similar figure to the control group's 4 weeks later. This was considered the result of cells which surround the damaged blood vessel being influxed into the smooth muscular layers. Therefore, this local freezing injury on the blood vessel was thought to be applied clinically to relieve severe vasospasm which cannot be treated by vasodilation drug, a microvascular surgery.