• Tuberculosis and Respiratory Diseases
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• 제82권3호
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• pp.242-250
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• 2019

Background: Data on noninvasive ventilation (NIV) use in intensive care units (ICUs) are very limited in South Korea. Methods: A prospective observational study was performed in 20 ICUs of university-affiliated hospitals from June 2017 to February 2018. Adult patients (age>18 years) who were admitted to the ICU and received NIV treatment for acute respiratory failure were included. Results: A total of 156 patients treated with NIV were enrolled (mean age, $71.9{\pm}11.6years$). The most common indications for NIV were acute hypercapnic respiratory failure (AHRF, n=89) and post-extubation respiratory failure (n=44). The main device for NIV was an invasive mechanical ventilator with an NIV module (61.5%), and the majority of patients (87.2%) used an oronasal mask. After the exclusion of 32 do-not-resuscitate patients, NIV success rate was 68.5% (85/124); ICU and hospital mortality rates were 8.9% and 15.3%, respectively. However, the success rate was lower in patients with de novo respiratory failure (27.3%) compared to that of patients with AHRF (72.8%) or post-extubation respiratory failure (75.0%). In multivariate analysis, immunocompromised state, de novo respiratory failure, post-NIV (2 hours) respiratory rate, NIV mode (i.e., non-pressure support ventilation mode), and the change of NIV device were significantly associated with a lower success rate of NIV. Conclusion: AHRF and post-extubation respiratory failure were the most common indications for NIV in Korean ICUs. Overall NIV success was achieved in 68.5% of patients, with the lowest rate in patients with de novo respiratory failure.

• Tuberculosis and Respiratory Diseases
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• 제81권1호
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• pp.19-28
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• 2018

Cancer is the leading cause of death in the Republic of Korea and cancer death accounts for 27.8% of the total deaths, which is not only a social issue but also a concern for the public. Among the cancer death rates, lung cancer mortality account for 34 deaths per 100,000 populations, making it the number one cancer death rate. In a preliminary report on cancer death in 2012, the lung cancer mortality ratio showed the regional variation indicating that there were differences in the qualitative level and the structure among the medical care benefit agency and in the assessment of the treatment process. Therefore, the Health Insurance Review and Assessment Service (HIRA) had begun evaluation of the assessment of lung cancer treatment since 2014 to improve the quality of lung cancer care through evaluation and feeds back the results of lung cancer care process. In this report, authors described the current Indicators for the lung cancer adequacy assessment proposed by HIRA and results of the evaluation reported in 2017.

• Journal of Chest Surgery
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• 제52권1호
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• pp.25-31
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• 2019

Background: The primary goal of this study was to characterize the clinical outcomes of adult patients with hematologic malignancies (HM) who were treated with extracorporeal membrane oxygenation (ECMO) support when conventional treatments failed. Methods: In this retrospective, observational study at a tertiary medical center, we reviewed the clinical course of 23 consecutive patients with HM requiring ECMO who were admitted to the intensive care unit at Asan Medical Center from March 2010 to April 2015. Results: A total of 23 patients (8 female; median age, 44 years; range, 29-51 years) with HM and severe acute circulatory and/or respiratory failure received ECMO therapy during the study period. Fourteen patients received veno-arterial ECMO, while 9 patients received veno-venous ECMO. The median ECMO duration was 104.7 hours (range, 37.1-221 hours). Nine patients were successfully weaned from ECMO. The in-hospital mortality rate was 91.1% (21 of 23). There were complications in 3 patients (cannulation site bleeding, limb ischemia, and gastrointestinal bleeding). Conclusion: ECMO is a useful treatment for patients with circulatory and/or pulmonary failure. However, in patients with HM, the outcomes of ECMO treatment results were very poor, so it is advisable to carefully decide whether to apply ECMO to these patients.

• Journal of Gastric Cancer
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• 제10권3호
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• pp.118-125
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• 2010

Purpose: Operative morbidity and mortality from gastric cancer have decreased in recent years, but many studies have demonstrated that its prevalence is still high. Therefore, we investigated the risk factors for morbidity and mortality considering the type of complication in patients with gastric cancer. Materials and Methods: A total of 259 gastrectomies between 2004 and 2008 were retrospectively reviewed. Results: Overall morbidity and mortality rates were 26.6% and 1.9%, respectively. A major risk factor for morbidity was combined resection (especially more than two organs) (P=0.005). The risk factors for major complications in which a re-operation or intervention were required were type of gastrectomy, upper location of lesion, combined resection, and respiratory comorbidity (P=0.042, P=0.002, P=0.031). Mortality was associated with preexisting neurologic disease such as cerebral stroke (P=0.016). In the analysis of differen complication's risk factors, a wound complication was not associated with any risk factor, but combined resection was associated with bleeding (P=0.007). Combined resection was an independent risk factor for a major complication, surgical complication, and anastomotic leakage (P=0.01, P=0.003, P=0.011, respectively). Palliative resection was an independent risk factor for major complications and a previous surgery for malignant disease was significantly related to anastomosis site leakage (P=0.033, P=0.007, respectively). Conclusions: The risk factors for gastrectomy complications of gastric cancer were combined resection, palliative resection, and a previous surgery for a malignant disease. To decrease post-gastrectomy complications, we should make an effort to minimize the range of combined resection, if a palliative gastrectomy is needed for advanced gastric cancer.

• Tuberculosis and Respiratory Diseases
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• 제68권1호
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• pp.10-15
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• 2010

Background: Lung cancer is the most common cause of cancer mortality in Korea. The TNM stage at presentation in patients with non-small cell lung cancer (NSCLC) has the greatest impact on prognosis. Patients who undergo a complete resection for NSCLC are likely to develop recurrent and/or metastatic disease. There are several factors influencing the development of recurrence. We explored risk factors of recurrence in patients with stages I and II NSCLC, who had undergone curative resection. Methods: We reviewed patients who had complete surgical resection as definitive treatment for stage I or II. Patients followed up for more than 36 months. We evaluated several factors which might have relationship with recurrence, such as patient's demographic factors, TNM staging, pathologic finding, tumor markers and surgical technique. Results: A total of 75 patients were enrolled for analysis, of whom 58 were men and 17 were women with mean age of 61 (range, 37 to 76) years. The average size of tumors was 3.9 cm (0.7 to 10 cm). There were 64 patients with stage I NSCLC and 11 with stage II NSCLC. Among 64 patients with stage I NSCLC, 35 patients showed recurrences whereas 8 patients have recurred in stage II NSCLC. Grade of differentiation of tumor was closely related to the recurrence. Seventy-five percent of patients who had poor tumor differentiation experienced a recurrence. In contrast, 3 patients of twelve had recurrences, who revealed differentiation in their tissue (p<0.05). Conclusion: Tumor differentiation could be a predictive factor for tumor recurrence in patients who have undergone curative resection for stage I or II NSCLC.

• Journal of Radiation Protection and Research
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• 제21권3호
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• pp.175-182
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• 1996

BEIR V 방법을 사용하여 한국인이 단일 및 연속 방사선피폭을 받았을 경우 일생동안 방사선에 의한 암사망을 평가하였다. 단일피폭시 지배적으로 나타나는 암은 젊은층 피폭의 경우는 소화기암, 노령층피폭의 경우는 호흡기 암이었다. 한국인 모든 집단이 피폭받았을 경우, 지배적으로 나타나는 암은 소화기 암이었다. 출생에서 사망까지 1mGy/yr의 피폭을 연속적으로 받았을 경우, 방사선에 의한 모든 암의 발생은 자연 암발생의 3% 정도였다.

• Journal of Chest Surgery
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• 제22권1호
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• pp.95-105
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• 1989

The records of 248 patients over 16 years of age who had undergone a surgical correction of a congenital cardiovascular malformation during the period of 10 years from August, 1978 to July, 1988 were reviewed. During this period, the incidence of congenital cardiovascular malformation in adult was 18.2% of 1376 total heart disease operated on and 25.5% of 986 congenital heart defects. Among them, there were 200 patients in acyanotic group and 48 patients in cyanotic group. Male versus female ratio was 1:1.28. The oldest patient was 59 years old female who had atrial septal defect. The mean age was 24.4 years old. The distribution of the lesions showed a large preponderance of atrial septal defects [37.19o] followed in frequency by ventricular septal defects [918.1%], patent ductus arteriosus [17.3%], tetralogy of Fallot [16.1%], and a variety of other complex malformations[3.2%]. In the pediatric age group, relative frequency was different from that of this adult group, showing ventricular septal defects, tetralogy of Fallot, patent ductus arteriosus and atrial septal defects in order of incidence. The hospital mortality and late mortality were 6.0% and 1.7% respectively. The causes of hospital death were low cardiac output in 10 patients, arrhythmia in 2, air embolism in 1, sepsis in 1 and respiratory failure in l. Clinical improvement upto NYHA functional class I or II postoperatively has been achieved and sustained in all patients following repair except the patients of late death and receiving reoperation. This result confirms that congenital heart defects in the adults can be corrected with a good outcome and an aggressive operative approach seems justified.

• Tuberculosis and Respiratory Diseases
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• 제40권5호
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• pp.595-601
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• 1993

연구배경 : 우리나라의 결핵은 그 예방 및 치료에 괄목할 만한 진전이 있었음에도 사망 순위 10위 안에 들어 있으므로 결핵환자 사망에 대한 역학적 조사를 통하여 분포특성을 제시하여 보고자 본 연구를 시도하였다. 방법 : 1986년부터 1990년까지의 5년동안에 걸쳐 한 결핵전문병원에 내원하여 사망하였던 총 684명의 환자를 대상으로 하여 일반 역학적 정보와 질병정보를 중심으로 조사하여 변수간의 연관성을 검정하였다. 결과: 1) 5년간의 총 결핵 입원환자 3441명중 684명 인 19.9%가 사망하였다. 2) 남자가 81.0%였으며 남자의 경우는 연령별 분포의 차이가 없었으나 여자의 경우 39세 이하군이 46.3%로 유의하게 많았다. 3) 사망의 의료보장별 분포는 의료보호군이 의료보험군의 42.3%로 매우 많았으며 비보장군도 전체의 11.8%나 차지하였다. 4) 치료를 중단한 경험이 있는 경우나 78.2%를 차지하여 지속적이지 못함을 나타내었다. 결론 : 대상병원의 특이성도 있지만 아직도 많은 폐결핵환자가 사망하고 있고 이들의 대부분이 치료를 받은 경험이 있었고 병의 정도가 중증인 경우와 재발한 경우가 많아 지속적인 공중보건학적 관리가 이루어져야 할 것으로 사료된다.

• Tuberculosis and Respiratory Diseases
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• 제72권3호
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• pp.284-292
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• 2012

Background: The aim of this study was to investigate therapeutic outcomes and assess factors associated with therapeutic outcomes in hematologic patients with invasive pulmonary aspergillosis (IPA). Methods: We analyzed all consecutive cases of IPA in adults with hematologic diseases from January 2008 to January 2009 at a Catholic Hematopoietic Stem Cell Transplantation (HSCT) Center in Seoul, Korea. Results: A total of 54 patients were identified. Underlying diseases were acute myelogenous leukemia (n=25), acute lymphoblastic leukemia (n=10), myelodysplastic syndrome (n=7), chronic myelogenous leukemia (n=3), multiple myeloma (n=3), severe aplastic anemia (n=2) and other hematologic diseases (n=4). Twenty six patients (48.2%) were assessed as having a favorable response, of which 16 patients (29.6%) showed complete response. Overall 12-week mortality and IPA attributable mortality were 38.9% (n=21) and 33.3% (n=18), respectively. In multivariate analysis, uncontrolled underlying disease (odds ratio [OR], 7.31; 95% confidence interval [CI], 1.49~35.94; p=0.014) was associated with an unfavorable response, and for 12-week mortality, uncontrolled underlying disease (OR, 11.79; 95% CI, 1.49~93.46; p=0.020) and hypoalbuminemia (OR, 9.89; 95% CI, 1.42~68.99; p=0.021) were significantly poor prognostic factors. Conclusion: IPA still remains as a poor therapeutic outcome, especially in patients with refractory hematologic diseases.

• Clinical and Experimental Pediatrics
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• 제52권3호
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• pp.310-314
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• 2009

목 적 : 기흉은 신생아에서 이환율과 사망률을 증가시키는 주요한 원인으로 알려져 있다. 저자들은 신생아 기흉의 주요 원인인 RDS와 폐렴 환아에서 그 발생양상과 예후를 알아보고자 본 연구를 시행하였다. 방 법 : 2001년 1월부터 2005년 12월까지 계명대학교 동산의료원 신생아 집중치료실에 입원하였던 환아 중 입원 중에 기흉이 있었던 환아를 대상으로 원인 질환에 따라 RDS 군과 폐렴군으로 나누어 후향적으로 의무기록을 분석 하였다. 두 군에서 임상소견(재태 주령, 생후 발병일, 인공환기기 및 흉관삽관술 비율) 및 예후(사망률), 사망환아는 사망영향 인자를 통계적으로 비교 분석하였다. 결 과 : 총 80명의 환아 중 RDS군이 30명, 폐렴군이 50명 이었다. 평균 재태주령은 RDS군에서 32.3주로 폐렴군 38.1주보다 의미있게 짧았으며(P<0.001), 평균 발생일은 RDS군에서 4.6일로 폐렴군 1.8일보다 의미있게 늦게 생겼다(P<0.05). 초기 인공환기기 사용과 발생후 흉관삽관술 시행은 RDS군이 100%와 66.7%로 폐렴군 44%와 48%보다 높았다. 발생후 사망률은 RDS군에서 46.7%로 폐렴군의 18%보다 높았고, 기흉자체로 인한 사망률도 RDS군에서 33.3%로 폐렴군의 16%보다 의미있게 높았다(P<0.05). 로지스틱 회귀분석에서 기흉동반시 사망률은 조산아에서 의미있게 높았고(OR 7.44, 95% CI: 1.99-27.86, P<0.005), RDS군에서 발생시 폐렴군보다 높은 경향을 보였으나 통계적 유의성은 없었다(OR 1.70, 95% CI: 0.52-5.54, P>0.3). 양측성으로 발생시의 사망률은 일측성과 유사하였다. 결 론 : 신생아 기흉은 호흡곤란증후군에서 동반시 폐렴군에서 보다 의미있게 늦게 발생되며, 인공환기기 및 흉관삽관술이 많이 필요하였고, 사망률도 좀더 높은 경향을 보였다. 특히 조산아에서 발생 자체가 독립적으로 기흉의 사망률을 높였다.