• Archives of Plastic Surgery
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• 제38권5호
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• pp.636-641
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• 2011

Purpose: There are multiple dependent variables commonly attributed to survival of replanted digits. The ischemia time is thought to be a clinically relevant factor. However, controversy exists as large hand centers have reported successful replant outcomes independent of ischemic time. In this study, we present a single institution experience on the effect of ischemia time on the survival of completely amputated digits. Methods: A retrospective review of a single institution experience was performed. This cohort included all comers who had suffered complete amputation of a digit (Zone 2-4) and underwent replantation from 2003 to 2009. Demographic information as well as injury mechanism, ischemic time, and replantation outcome were recorded for each patient. Chi-square was used to analyze the result. Results: Mean age was 35.5 years old (2-69). Mean replantation survival was 89.5% (37/317). Survival rates were 94, 88, and 88% in respective groups of 0~6, 6~12, of > 12 hours of ischemia time. In chi-square analysis, there was no difference with $p$ value of 0.257. No other independent patient factors showed statistically significant relationship to replant survival rate. In the group with longest ischemia time (12~18 hours) replant survival rate was 88% (37/42). Conclusion: Prolonged ischemia time is commonly believed to be a contributing factor for replant survival. However, our experience has shown that survival rate is uniform up to 18 hours of ischemia.

• Radiation Oncology Journal
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• 제34권2호
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• pp.96-105
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• 2016

Purpose: The standard radiation dose for patients with locally rectal cancer treated with preoperative chemoradiotherapy is 45-50 Gy in 25-28 fractions. We aimed to assess whether a difference exists within this dose fractionation range. Materials and Methods: A retrospective analysis was performed to compare three dose fractionation schedules. Patients received 50 Gy in 25 fractions (group A), 50.4 Gy in 28 fractions (group B), or 45 Gy in 25 fractions (group C) to the whole pelvis, as well as concurrent 5-fluorouracil. Radical resection was scheduled for 8 weeks after concurrent chemoradiotherapy. Results: Between September 2010 and August 2013, 175 patients were treated with preoperative chemoradiotherapy at our institution. Among those patients, 154 were eligible for analysis (55, 50, and 49 patients in groups A, B, and C, respectively). After the median follow-up period of 29 months (range, 5 to 48 months), no differences were found between the 3 groups regarding pathologic complete remission rate, tumor regression grade, treatment-related toxicity, 2-year locoregional recurrence-free survival, distant metastasis-free survival, disease-free survival, or overall survival. The circumferential resection margin width was a prognostic factor for 2-year locoregional recurrence-free survival, whereas ypN category was associated with distant metastasis-free survival, disease-free survival, and overall survival. High tumor regression grading score was correlated with 2-year distant metastasis-free survival and disease-free survival in univariate analysis. Conclusion: Three different radiation dose fractionation schedules, within the dose range recommended by the National Comprehensive Cancer Network, had no impact on pathologic tumor regression and early clinical outcome for locally advanced rectal cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제14권3호
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• pp.1623-1627
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• 2013

Cholangiocarcinoma (CCA) is a major health problem and cause of death among people in Northeastern Thailand. In this prospective study 171 patients newly diagnosed with CCA by physicians in 5 tertiary hospitals in four provinces of northeastern of Thailand between February and July 2011 were followed up to January 2012. The outcome was survival time from diagnosis to death. A total of 758.4 person-months of follow-up were available. The mortality rate was 16.9 per 100 person-months (95%CI: 14.1-20.1). The median survival time among CCA patients was 4.3 months (95%CI: 3.3-5.1). Cox's proportional hazard model was used to study the independent effects of factors affecting survival time among patients. Statistically significant factors included advanced stage at diagnosis (HR: 2.5, 95%CI: 1.7-3.8), presentation with jaundice (HR: 1.7, 95%CI: 1.1-2.4) or ascites (HR: 2.8, 95%CI: 1.8-4.4), and positive serum carcinoembryonic antigen (HR: 2.3, 95%CI: 1.2-4.3). Patients who had received standard treatment had a better prognosis that those who did not (HR: 0.5, 95%CI: 0.3-0.7).

• Asian Pacific Journal of Cancer Prevention
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• 제17권3호
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• pp.1123-1127
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• 2016

Chemotherapy is the primary treatment for advanced and recurrent cervical cancer. To evaluate the survival outcomes of chemotherapy and the prognostic factors in this setting, we conducted a retrospective study by reviewing the medical records of advanced and recurrent cervical cancer patients treated with systemic chemotherapy at our institute between January, 2008 and December, 2014. One hundred and seventy-three patients met the criteria with a mean age of 50.9 years. 4.1% of them were HIV positive. The most common initial stage was stage IVB (30.1%) and the most common histology was squamous cell carcinoma (68.6%). Ninety-two (53.2%) patients were previously treated with concurrent chemoradiation with 53% developing combined sites of recurrence. The median recurrence free interval was 16.7 months. Cisplatin + 5 fluorouracil (5FU) (53.2%) was the most frequent first line chemotherapy followed by carboplatin + paclitaxel (20.2%) with an objective response of 39.3%. Seventy-two patients received subsequent chemotherapy. The median overall survival of all studied patients was 13.2 months. Only a recurrence free interval of less than 12 months was an independent prognostic factor for survival outcome. In conclusion, chemotherapy treatment for advanced and recurrent cervical cancer patients showed modest efficacy with a shorter recurrence free survival less than 12 months as a significant poor prognosis factor.

• Asian Pacific Journal of Cancer Prevention
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• 제13권8호
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• pp.4133-4136
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• 2012

Aim: To report the results of radiotherapy with or without chemotherapy in the patients with oral cancer. Methods: Over the 2003-2009 periods, a total number of 69 patients with squamous cell carcinoma of the oral cavity that refused surgery or had unresectable tumor were enrolled in this study. A total dose of 60 to 70 Gy (2 Gy per day) was given to the primary tumor and clinically positive nodes. In the patients with locoregionally advanced disease (57 patients with $T_3$, $T_4$ lesions and/ or $N^+$) induction chemotherapy following by concomitant chemoradiation was used. Induction chemotherapy consisted of 3 cycles of Cisplatin and 5-Flourouracil with or without Docetaxel. Weekly cisplatin was used in concomitant protocol. Kaplan-Meier method was used to calculate overall survival. Log-rank test and Cox regression model were used for comparison purposes. Results: Median follow-up was 32 months. The mean age of the patients was 59.2 years. The overall response rate after induction chemotherapy was 68.4%. Actuarial overall survival rates after 2 and 3 years were 38% and 26%, respectively. Clinical stage emerged as the only independent predictor of survival. Conclusion: Outcome of the patients with oral cancer is poor. Presenting with an advanced stage lesion contributed to this result. The role of chemotherapy in advanced cases remains to be defined.

• Asian Pacific Journal of Cancer Prevention
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• 제14권4호
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• pp.2529-2532
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• 2013

Background: Pelvic exenteration is a procedure which includes enbloc resection of pelvic organs followed by surgical reconstruction. Aims include both cure and palliation but data for pelvic exenteration in Thailand are very limited. Objective: This study was conducted to evaluate characteristics of patients, operative procedure outcomes and complications. Materials and Methods: This retrospective review covered all of the charts of exenteration patients during January 2002 to December 2011. Baseline characteristic of the patients were collected as well as details of clinical results. Results: A total of 13 cases of pelvic exenteration were included. Most underwent total pelvic exenteration (9 cases) and the remainder posterior and anterior exenteration. Their primary cancers were ovarian, cervical and vulva. Mean operative time was 532 minutes (SD 160.2, range 270-750) and estimated blood loss was 2830 ml (1850, 1000-8000). Mean tumor size was 7.33 cm (3.75, 4-15). Mean hospital stay was 35.2 days (29.8, 13-109). The most common post operative complication was urinary tract infection. Overall disease free survival with a negative surgical margin was significantly better than in positive surgical margin patients (p=0.014). Conclusions: Surgical margin was the most significant prognostic factor for disease free survival, in line with earlier studies.

• Advances in pediatric surgery
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• 제14권2호
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• pp.125-133
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• 2008

To evaluate the long-term prognosis of biliary atresia after Kasai operation, a total of 14 patients (of the 41 patients operated upon from 1982 to 1997), who had been followed up for more than 10 years, were included in this retrospective study. Eleven out of 14 patients survived with their native livers, and their data analyzed for age at operation, clearing time of jaundice, histological outcome, postoperative complications, effectiveness after the application of an intussusception anti-reflex valve, and quality of life. Average age at surgery was 62.8 days. Serum bilirubin was normalized within three months in all patients. Six among the eleven long-term survivors had ascending cholangitis as one of the postoperative complications. The application of an intussusception anti-reflux valve did not show any statistical significance in long-term survival. Most of long-term survivors appeared to enjoy good quality of life. Kasai operation might not be the definitive treatment for biliary atresia; however, Kasai operation made it possible to achieve long-term survival for patients with biliary atresia when the patients were detected and treated as early as possible.

• Journal of Yeungnam Medical Science
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• 제36권2호
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• pp.124-135
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• 2019

Background: We aimed to establish robust histoprognostic predictors on residual rectal cancer after preoperative chemoradiotherapy (CRT). Methods: Analyzing known histoprognostic factors in 146 patients with residual disease allows associations with patient outcome to be evaluated. Results: The median follow-up time was 77.8 months, during which 59 patients (40.4%) experienced recurrence and 41 (28.1%) died of rectal cancer. On univariate analysis, residual tumor size, ypT category, ypN category, ypTNM stage, downstage, tumor regression grade, lymphatic invasion, perineural invasion, venous invasion, and circumferential resection margin (CRM) were significantly associated with recurrence free survival (RFS) or/and cancer-specific survival (CSS) (all p<0.005). On multivariate analysis, higher ypTNM stage and CRM positivity were identified as independent prognostic factors for RFS (ypTNM stage, p=0.024; CRM positivity, p<0.001) and CSS (p=0.022, p=0.017, respectively). Furthermore, CRM positivity was an independent predictor of reduced RFS and CSS, irrespective of subgrouping according to downstage (non-downstage, p<0.001 and p<0.001; downstage, p=0.002 and p=0.002) or lymph node metastasis (non-metastasis, p<0.001 and p=0.001; metastasis, p<0.001 and p<0.001). Conclusion: CRM status may be as powerful as ypTNM stage as a prognostic indicator for patient outcome in patients with residual rectal cancer after preoperative CRT.

• 대한골관절종양학회지
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• 제19권1호
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• pp.9-13
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• 2013

목적: 연골육종의 종양학적 결과와 무병생존율에 영향을 주는 요인들에 대하여 분석하고자 하였다. 대상 및 방법: 1993년부터 연골육종을 진단 받고 생검술 또는 수술적 치료를 시행 받은 환자 중 설정한 최소 추시기간인 18개월 이전에 사망한 4명을 포함하여 총 48명을 대상으로 하였다. 종양학적 결과를 평가하고 조직학적 등급, 병기, 위치, 용적, 내원시 연령, 수술 절제연, 수술적 치료 방법을 변수로 하여 무병생존율에 미치는 영향에 대하여 후향적 연구를 시행하였다. 추시 기간은 평균 43.8개월(1-196개월)이었다. 결과: 평균 43.8개월 추시상 무병생존율은 77.1%였으며 질병으로 인한 사망 7예(14.6%), 유병 생존 4예(8.3%)였다. 5년 및 10년 무병생존율은 각각 64%와 58%였다. 조직학적 악성도와 외과적 병기, 내원시 연령이 유의한 차이를 나타냈으며, 사지골의 저 악성도 연골육종에서는 광범위 소파술을 시행한 9예 모두에서 무병생존과 우수한 기능적 결과를 보였다. 결론: 연골육종의 무병생존율은 조직학적 악성도와 외과적 병기 및 내원 시의 연령과 관련이 있는 것으로 나타났다. 국소 재발과 원격 전이의 유무 또한 무병생존율과 유의한 상관성을 보였다. 사지골의 저악성도 연골육종에서는 광범위 소파술이 광범위 절제술에 비해 생존율에 영향을 미치지 않으면서 기능소실 및 합병증을 피할 수 있는 효과적인 치료법으로 생각된다.

• Radiation Oncology Journal
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• 제18권1호
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• pp.11-16
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• 2000

목적 : 진행된 식도암 환자에서 외부 방사선 단독치료를 받았던 환자의 치료성적에 대하여 후향적 분석을 시행하였다. 재료 및 방법 : 흉곽내에 위치한 편평상피세포암의 식도암으로 1990년 7월부터 1996년 12월까지 전남대학교병원 치료방사선과에서 외부 방사선 단독 치료를 받은 106명을 대상으로 후향적 분석을 시행하였다. 근치 목적의 방사선은 6 MV 혹은 10 MV X선으로 55 Gy에서 70.8 Gy 의 선량으로 통상적인 분할치료를 시행하였다. 추적이 가능한 환자는 100명(94$\%$)으로 추적기간은 1개월에서 92개월(중앙값: 6개월)이었다. 결과 :전체환자의 중앙연령은 62세였으며, 남녀 비율은 104:2였다. 가장 흔한 병변부위는 중앙 부위로 54$\%$를 차지하였다. 83$\%$의 환자가 근치목적의 방사선치료를 받았고 이들의 평균 방사선 선량은 58.6 Gy였으며(55$\~$70.8 Gy)평균 치료소요기간은 53일이었다. 전체환자의 중앙생존기간은 6개월이었고, 1, 2년 생존율은 각각 27, 12$\~$였다. 연하곤란으로 위루술을 시행한 7명을 제외하고 대부분의 환자에서 증상의 완화를 보였다. 치료 직후 완전 관해율은 32$\~$ (34/106)였고 이들 환자의 중앙생존기간(14개월)과 2년 생존율(30$\%$)은 다른 환자의 중앙생존기간(4개월)과 2년 생존율(30$\%$)에 비해 좋았다(p=0.000). 진단시 연하곤란의 정도에 따른 중앙생존기간과 2년 생존율을 비교해보면, 정상적인 음식물 섭취가 가능한 경우는 9개월과 16$\%$인 반면, 전혀 음식물을 삼킬 수 있었던 환자의 경우는 3개월과 0$\%$였다(p=0.004). 그러나 식도주변조직의 침범이나 주변 임파절 침범 유무에 따른 두 군간의 성적의 차이는 보이지 않았다. 다요인 분석에서는 방사선치료 직후 종양의 완해 여부가 가장 중요하였고 그외 원발 병소의 길이, 진단 당시 연하곤란의 정도 순으로 생존율에 통계적으로 유의한 영향을 주는 인자였다. 치료로 인한 부작용은 10명의 환자에서 관찰되었다(9$\%$). 결론 : 진행된 식도암 환자의 외부방사선 단독 치료는 좋지 않은 결과를 보여 주었다. 이에 진행된 병기의 식도암환자의 치료 선택에 있어서 반드시 근접치료나 항암화학요법의 병행을 고려해야 하겠다.