• Asian Pacific Journal of Cancer Prevention
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• 제17권9호
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• pp.4381-4389
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• 2016

Background: Surgery is the corner stone for the management of rectal cancer. The purpose of this study was to demonstrate the optimal time of surgical resection after the completion of neoadjuvant chemo-radiotherapy (CRT) in treatment of locally advanced rectal cancer. Materials and Methods: This study compared 2 groups of patients with locally advanced rectal cancer, treated with neoadjuvant CRT followed by surgical resection either 6-8 weeks or 9-14 weeks after the completion of chemo-radiotherapy. The impact of delaying surgery was tested in comparison to early surgical resection after completion of chemo-radiotherapy. Results: The total significant response rate that could result in functional preservation was estimated to be 3.85% in group I and 15.4% in group II. Some 9.62% of our patients had residual malignant cells at one cm surgical margin. All those patients with positive margins at one cm were in group I (19.23%). There was less operative time in group II, but the difference between both groups was statistically insignificant (P=0.845). The difference between both groups regarding operative blood loss and intra operative blood transfusion was significantly less in group II (P=0.044). There was no statistically significant difference between both groups regarding the intra operative complications (P=0.609). The current study showed significantly less post-operative hospital stay period, and less post-operative wound infection in group II (P=0.012 and 0.017). The current study showed more tumor regression and necrosis in group II with a highly significant main effect of time F=61.7 (P<0.001). Pathological TN stage indicated better pathological tumor response in group II (P=0.04). The current study showed recurrence free survival for all cases at 18 months of 84.2%. In group I, survival rate at the same duration was 73.8%, however none of group II cases had local recurrence (censored) (P=0.031). Disease free survival (DFS) during the same duration (18 months) was 69.4 % for patients in group I and 82.3% for group II (P=0.429). Conclusions: Surgical resection delay up to 9-14 weeks after chemo-radiation was associated with better outcome and better recurrence free survival.

• Journal of Trauma and Injury
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• 제19권1호
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• pp.67-73
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• 2006

Purpose: The arterial base deficit (BD) has proven to be useful in the evaluation and management of trauma patients. Indicators such as the Triage-Revised Trauma Score (t-RTS) and the systemic inflammatory response syndrome (SIRS) score have been used as triage tools for emergency trauma patients in Korea. The purpose of this study was to assess the usefulness of the initial BD in predicting injury severity and outcome in the trauma population. Methods: The medical records of 308 consecutive trauma patients admitted to the Emergency Center of Masan Samsung Hospital from January 2004 to December 2004 were carefully examined prospectively and retrospectively, and 291 patients were selected as subjects for this research. The SIRS score and the t-RTS were calculated based on the records from the emergency department, and the BD was calculated based on the arterial blood gas analysis obtained within 30 minutes of admission. The efficiency of the three indicators as triage tools was evaluated by using cross tabulations in two - by - two matrices and by using a receiver operating characteristic (ROC) curve analysis. Results: When the mortality was used as the outcome parameter, the sensitivity and the accuracy of the initial BD were higher than those of the SIRS score (p<0.05) and were same as those of the t-RTS. The areas under the ROC curves of the initial BD, the SIRS score, and the t-RTS were $0.740{\pm}0.087$, $0.696{\pm}0.082$, and $0.871{\pm}0.072$, respectively (95% confidence interval). When emergency operation and blood transfusion requirements were used as outcome parameters, the comparisons of the sensitivities and the accuracies of the initial BD and the other two indicators showed the same pattern as mentioned above. The areas under the ROC curves of the initial BD were 0.7~0.8 and were larger than those of the SIRS score (p<0.05). Conclusion: The ability of the initial BD to predict injury severity and outcome was similar to those of the t-RTS and the SIRS score. Therefore, the authors suggest that the initial BD may be used as an alternative to previous triage tools for trauma patients.

• Asian Pacific Journal of Cancer Prevention
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• 제16권8호
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• pp.3223-3227
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• 2015

Objective: We evaluated the association of body mass index (BMI) with perioperative outcomes in patients who underwent laparoscopic or open radical nephroureterectomy. Materials and Methods: This retrospective single-center study included 113 patients who had been diagnosed with upper urinary tract cancer from January 1998 to June 2013 and were treated with laparoscopic nephroureterectomy (Lap group, n=60) or open nephroureterectomy (Open group, n=53). Laparoscopic nephroureterectomy was performed via a retroperitoneal approach following an open partial cystectomy. The two surgical groups were stratified into a normal-BMI group (<25) and a high-BMI group ($BMI{\geq}25$). The high-BMI group included 27 patients: 13 in the Lap group and 14 in the Open group. Results: Estimated blood loss (EBL) in the Lap group was much lower than that in the Open group irrespective of BMI (p<0.01). Operative time was significantly prolonged in normal-BMI patients in the Lap group compared to those in the Open group (p=0.03), but there was no difference in operative time between the Open and Lap groups among the high-BMI patients. Multivariate logistic regression analysis of the data for all the cohorts revealed that the open procedure was a significant risk factor for high EBL (p<0.0001, hazard ratio 8.02). Normal BMI was an independent predictor for low EBL (p=0.01, hazard ratio 0.25). There was no significant risk factor for operative time in multivariate analysis. There were no differences in blood transfusion rates or adverse event rates between the two surgical groups. Conclusions: Laparoscopic radical nephroureterectomy via a retroperitoneal approach can be safely performed with significantly reduced EBL even in obese patients with upper urinary tract cancer.

• Journal of Trauma and Injury
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• 제23권2호
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• pp.57-62
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• 2010

Purpose: This study analyzed the characteristics of stable pelvic bone fractures with intra-abdominal solid organ injury. Methods: Medical records were retrospectively reviewed from January 2000 to December 2009 of patients with stable pelvic bone fractures. A stable pelvic bone fracture according to Young's classification is defined as a lateral compression type I and antero-posterior compression type I. Subjects were divided into two groups, one with (injured group) and one without (non-injured group) intra-abdominal solid organ injury, to evaluate the dependences of the characteristics on the presence of an intra-abdominal solid organ injury. Data including demographics, mechanism of injury, initial hemodynamic status, laboratory results, Revised Trauma Score (RTS), Abbreviated Injury Scale (AIS), Injury Severity Score (ISS), amount of transfusion, admission to intensive care unit (ICU), and mortality were analyzed. Results: The subjects were 128 patients with a mean age of 42 years old, of whom were 67 male patients (52.3%). The injured group had 21 patients(16.4%), and the most frequent injured solid organ was the liver. Traffic accident was the most common mechanism of injury and lateral compression was the most common type of fracture in all groups. Initial systolic blood pressure was lower in the injured group, and the ISS was greater in the injured group. Arterial pH was lower in the injured group, and shock within 24 hours after arrival at the emergency department was more frequent in the injured group. Transfused packed red blood cells within 24 hours were 8 patients(38.1%) in the injured group and 11 patients(10.3%) in the non-injured group. Conservative treatment was the most common therapeutic modality in all groups. Stay in the ICU was longer in the injured group, and three mortalities occurred. Conclusion: There is a need to decide on a diagnostic and therapeutic plan regarding the possibility of intra-abdominal solid organ injury for hemodynamically unstable patients with stable pelvic bone fractures and for patients with stable pelvic bone fractures along with multiple associated injuries.

• 한국환경보건학회지
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• 제6권1호
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• pp.47-52
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• 1979

Up to the present there were the blood transfusion and the use of apparatus not to sterilize at surgical operation and medical treatments in well known infectious ways of hepatitis B virus. But all its ways were still not surely known. As the other ways of hepatitis B virus infection, it was suggested that contagion such as kissing, sexual contact, homosexuality, and varieties discharged out human body urine, stool, tear, salivary, menstrual blood, Vaginal discharge etc, and low economic status, unsanitary environmental life, alcohol and smoking related to hepatitis B virus infection. From 800 waitress who frequently contact with a lot of drinker with low economic status and unclear environmental life, this study were investigated HBs Ag (Hepatitis B surface antigen) known marker for hepatitis B virus infection in their serum, and a few conditions of their private life in order to known dangerous rate b~ing exposed to the source of hepatitis B virus infection as comparison with control group. The results were summarlized as following 1. The positive rate of HBs Ag (4.3%) was significantly higher in waitress than in control group(1.1%). 2. In waitress old, 20-24 ages group was the most as 59.5%, and positive rate of HBs Ag was trend of higher in twenties than thirties. 3. Among the waitress, one that it was less than a year were the most (62.4%) in the period to work at restaurant business, and positive rate of HBs Ag was trend of higher in propotion to period to work at there. 4. Among the waitress, one who entertained to beer hall was the most (46%), and they were trend of higher in positive rate of HBs Ag (6.3%) than other waitress. 5. Among the waitress, one to drink with smoking, and only to drink, and only to smoke, and not to drink and smoke 66.1%, 21.5%, 4.6% and 7.8%. Espically in one to drink with smoking, ther was trend of indicating the high positve rate of HBs Ag, and it was made suspicion of the relationship of alcohol smoking, contact with a lot of drinker, unclear environment to hepatitis B virus infection. In the above results, it was found that dangerous rate being exposed in hepatitis B virus infection was high in the waitress. Therefore there are required for active preventions against hepatitis B virus infection them. Also as it is possible to be infectious source in public health that waitress infected to viral hepatitis, it is thought that appropriate rules about them.

• Journal of Preventive Medicine and Public Health
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• 제32권3호
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• pp.383-394
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• 1999

공 교의료보험 적용대상자들 중 1992년 건강검진 수검 피보험자와 1993년 건강검진 수검 피부양자를 대상으로 사망에 영향을 미치는 요인에 관한 코호트내 환자-대조군 연구를 실시한 결과는 다음과 같다. '93-'97년도 자료의 분석에서 사망과 정상관 관계를 보인 변수는 수축기 혈압, 이완기 혈압, 혈당, AST, 요당, 요단백, 음주('자주 마신다'), 흡연, 건강인지, 영양제 복용, 수혈이었다. 사망과 역상관 관계를 보인 변수는 커피 음용이었다. 비만도와 혈중 콜레스테롤은 사망과 J형의 상관관계를 보였다. '96-97년 자료만을 이용하여 분석한 경우도 '93-'97년 자료와 관련성의 방향은 동일하였으나, 비만$(25-30kg/m^2)$과 콜레스테롤(240 mg/dL이상)의 사망 예방효과는 '93-'97년 자료에 비해 '96-'97년 자료에서 감소함으로써 '93-'94년 자료에 결과-원인 관계가 일부 개재되었을 가능성을 배제할 수 없었다.

• 생명과학회지
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• 제24권9호
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• pp.1030-1038
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• 2014

혈소판제제는 출혈질환이나 혈소판의 기능장애 치료를 위해 사용되고 있다. 혈소판성분채집술은 혈액성분채집기를 사용하여 혈소판 성분을 채집하는 방법으로, 성분채집혈소판의 질 평가에는 다양한 지표들이 이용되고 있다. 채집된 혈소판의 생산성은 채집효율(collection efficiency)과 채집률(collection rates)로 평가되고 보관된 혈소판의 질은 in vitro 상에서 시각적 외양, 대사활성도, 양, 혈소판 수, 백혈구 수, 미세입자(microparticles), 그리고 다양한 혈소판 활성 표지자들로 평가된다. 혈소판 활성 표지자들은 여러 연구분야에서도 이용되고 있다. 수혈된 후의 혈소판의 질은 교정증가치(corrected count increment)와 혈소판회복퍼센트(percentage platelet recovery)로 평가된다. 본 논문은 혈소판성분채집술의 채집과정, 사용되는 장비, 성분채집혈소판의 질, 전반적인 효율성, 그리고 질평가 지표들에 대한 리뷰(review)와 함께 다른 혈액성분채집기 간의 기능의 차이점을 비교하였고, 또한 혈소판성분채집술은 구연산염 항응고제에 의한 부작용을 일으킬 수는 있지만 전혈 헌혈시에 실신의 전구증상이나 실신을 일으킬 위험이 있는 헌혈자들에게는 더 안전한 방법임을 보여주고 있다.

• Journal of Chest Surgery
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• 제42권4호
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• pp.418-425
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• 2009

배경: 심장 수술시 체외순환은 불가피하며 이때 발생하는 혈액 희석, 수혈, 염증반응, 부종 같은 부작용을 최소화하기 위해서 초기 충진액을 최소화하려는 많은 노력이 이루어졌다. 저자들은 최근 체외 순환 장비 및 운영방식의 개선으로 몸무게 10 kg 미만의 신생아 및 유아를 대상으로 체외순환 충진액의 양을 140 mL까지 줄일 수 있었으며 기존의 방법과 비교해보고자 하였다. 대상 및 방법: 2007년 7월부터 2008년 6월까지 본원에서 선천성 심장 기형으로 수술받게 될 5 kg 미만의 환아(n=97)를 대상으로 충진액 최소화 기법과 기존의 방법을 병행하여 수술을 시행하였다. 충진액 최소화 기법은, 심폐기 도관을 짧게 하고, 저혈조의 위치를 조절하며, 진공 배액을 사용하는 등 각 요소마다 충진액의 양을 줄일 수 있는 방법 등을 적용하는 것이었다. 연구 기간이 끝나고 난 뒤 후향적으로 체외순환기록지와 의무기록을 확인하였다. 결과: 새로운 충진액 최소화 기법을 사용한 환아는 46명이었으며 기존의 방법을 이용한 환아는 51명이었다. 양 집단에서 환아의 나이, 몸무게, 심페기 가동시간, 최저체온 등에 유의한 차이가 없었다(p>0.05). 그러나 충진액 최소화 기법을 사용한 환아와 기존의 방법을 사용한 환아에서 심폐기 초기 충진액의 총량은 각각 160.3$\pm$14.1 mL, 277.8+58.1 mL로 유의한 차이를 보였으며(p<0.001), 초기 농축적혈구 혼합량은 33.6$\pm$27.2 mL, 115.3$\pm$49.4 mL로 역시 유의한 차이를 보였다(p<0.001).수술 전 혈액검사에서 적혈구용적률은 오히려 충진액 최소화 기법 적용 군에서 평균 29.9%, 기존의 방법 군에서 평균 35.4%로 기존의 방법 군에서 유의하게 높았다(p<0.001). 각 군에 있어서 시행한 수술을 RACHS 카테고리에 의거해 난이도별로 나누었을 때 충진액 최소화기법 사용 군에서 시행한 수술이 기존의 방법 사용 군에서 시행한 수술에 비해 높은 난이도에 더 많이 분포하였다. 두 군 간에 수술 후 사망률이나 신경학적 합병증의 발생률에는 차이가 없었다. 결론: 체외순환 장비 및 운영방식의 개선으로 기존의 방법과 비교하여 획기적으로 초기 충진액 및 수혈을 줄일 수 있었고 체외순환으로 발생할 수 있는 여러 부작용을 최소화 하는데 도움이 될 것으로 생각되며 향후 이 같은 기법의 확대 보급이 필요할 것으로 생각된다.

• Journal of Chest Surgery
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• 제34권8호
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• pp.591-596
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• 2001

체외순환을 이용한 관상동맥우회로술은 수술적인 관상동맥 재관류 기법에서 보편적인 방법으로 여겨지고 있으나, 체외순환후 발생되는 전신적인 염증반응이나 혈액성분의 기계적 손상, 혈액응고장애등의 여러 가지 문제점들이 보고되고 있어, 이러한 합병증들을 피하기 위하여 체외순환을 이용하지 않는 관상동맥우회로술이 점차로 보편화되고 있어 체외순환 및 비체외순환하에서의 관상동맥후회로술을 비교분석하였다. 대상 및 방법: 1999년 3월부터 2000년 9월까지 비체외순환하에서 관상동맥우회로술 14례, 체외순환하에서 관상동맥후회로술 21례를 시행하였으며, 양군에서의 평균수술시간, 술후 기관삽관기간, 평균중환자실 재원기간, 평균재원기간, 수혈량, 술후 강심제의 사용, 술후 심근효소수치를 비교분석하였다. 결과: 평균수술시간은 심박동하 수술군에서 280$\pm$93.1분, 체외순환하 수술군에서 392.4$\pm$80.4분으로 심박동하 수술군에서 짧았으나 문합혈과 개수의 차이를 고려하면 양군에서의 수술시간은 차이가 없는 것으로 생각된다. 술후 기관삽관 시간은 심박동하 수술군에서 2.4$\pm$2.0hr, 체외순환하 수술군에서는 6.9$\pm$4.9hr으로 역시 심박동수술군에서 유의하게 짧았다(p<0.05). 중환자실 평균재원기간은 심박동하 수술군에서 $1.5\pm$0.7일, 체외순환하 수술군에서 2.3$\pm$3.7day 체외순환하 수술군에서 12.0$\pm$4.0day로서 별다른 차이는 관찰되지 않았다. 수술후 양군에서의 수혈량을 관찰하면 자기수혈량이 심박동하 수술군에서 113.6$\pm$173.1ml 체외순환하 수술군에서 478.6$\pm$310.9ml로서 심박동하 수술군에서의 수혈량이 유의하게 적었으며(p<0.05). 수술후 Dopamine, Dobutamine, Epinephrine의 사용량은 통계학적인 유의성은 발견할 수 없었으나, 심박동하 수술군에서 적은 경향을 관찰할 수 있었으며, 수술후 심근효소수치는 체외순환하 수술군에서 더욱 증가하였다. 결론: 비체외순환하 수술군에서 술후 기관 삽관기간, 평균 중환자실 재원기간이 짧으며, 수혈량 및 술후 강심베의 사용이 적으며, 심근보호효과가 뛰어난 것으로 생각되나, 향후 장기적인 추적관찰이 필요할 것으로 생각된다.

• Tuberculosis and Respiratory Diseases
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• 제64권6호
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• pp.445-450
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• 2008

연구배경: 최근 노인 인구가 급격히 증가하면서 중환자실로 입원하는 노인 환자도 증가하는 추세이다. 내과계 중환자실에서 30일 이상 장기간 기계환기를 받은 노인 환자들의 임상적 특징 및 예후에 대하여 알아보고자 하였다. 방 법: 2004년 4월부터 2007년 3월까지 을지대학병원 내과계 중환자실에 입원했던 환자들 중에서 연속해서 30일 이상 기계환기를 받았던 65세 이상 환자 41명을 대상으로 임상적 특징과 예후에 대하여 후향적으로 조사하였다. 결 과: 대상 환자 41명의 평균 연령은 $74.6{\pm}6.0$세이었고, 남자가 27명(65.9%)이었다. 중환자실로 입원한 주된 이유는 급성호흡부전 30명(73.2%)으로 가장 많았고 패혈증 5명(12.2%), 신경계장애 4명(9.8%), 위장관출혈 2명 (4.9%) 순이었다. 평균 APACHE II 점수는 $26.9{\pm}4.5$이었다. 중환자실 평균 입원 기간은 $49.3{\pm}23.0$일 이었으며 기계환기의 평균 기간은 $57.5{\pm}32.8$일이었다. 사망한 환자는 25명(60.9%)이었으며 사망과 관련있는 인자는 APACHE II 점수(p=0.038)와 수혈(p=0.007) 등이었다. 결 론: 장기간 기계환기 치료를 받은 노인 환자들에서 호흡부전이 가장 흔한 중환자실 입원 이유이었으며 사망률은 60.9%이었고 사망에 영향을 주는 인자는 APACHE II 점수와 수혈 등이었다.