• Journal of Cardiovascular Imaging
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• 제31권1호
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• pp.51-61
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• 2023

BACKGROUND: Valvular heart disease (VHD) is a common cause of cardiovascular morbidity and mortality worldwide; however, its epidemiological profile in Korea requires elucidation. METHODS: In this nationwide retrospective cohort study from the Korean valve survey, which collected clinical and echocardiographic data on VHD from 45 medical centers, we identified 4,089 patients with VHD between September and October 2019. RESULTS: The aortic valve was the most commonly affected valve (n = 1,956 [47.8%]), followed by the mitral valve (n = 1,598 [39.1%]) and tricuspid valve (n = 1,172 [28.6%]). There were 1,188 cases of aortic stenosis (AS) and 926 cases of aortic regurgitation. The most common etiology of AS was degenerative disease (78.9%). The proportion of AS increased with age and accounted for the largest proportion of VHD in patients aged 80-89 years. There were 1,384 cases of mitral regurgitation (MR) and 244 cases of mitral stenosis (MS). The most common etiologies for primary and secondary MR were degenerative disease (44.3%) and non-ischemic heart disease (63.0%), respectively, whereas rheumatic disease (74.6%) was the predominant cause of MS. There were 1,172 tricuspid regurgitation (TR) cases, of which 46.9% were isolated and 53.1% were associated with other valvular diseases, most commonly with MR. The most common type of TR was secondary (90.2%), while primary accounted for 6.1%. CONCLUSIONS: This report demonstrates the current epidemiological status of VHD in Korea. The results of this study can be used as fundamental data for developing Korean guidelines for VHD.

• Korean Journal of Radiology
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• 제23권9호
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• pp.878-888
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• 2022

Objective: To investigate the clinical impact of a quality improvement program including dedicated emergency radiology personnel (QIP-DERP) on the management of emergency surgical patients in the emergency department (ED). Materials and Methods: This retrospective study identified all adult patients (n = 3667) who underwent preoperative body CT, for which written radiology reports were generated, and who subsequently underwent non-elective surgery between 2007 and 2018 in the ED of a single urban academic tertiary medical institution. The study cohort was divided into periods before and after the initiation of QIP-DERP. We matched the control group patients (i.e., before QIP-DERP) to the QIP-DERP group patients using propensity score (PS), with a 1:2 matching ratio for the main analysis and a 1:1 ratio for sub-analyses separately for daytime (8:00 AM to 5:00 PM on weekdays) and after-hours. The primary outcome was timing of emergency surgery (TES), which was defined as the time from ED arrival to surgical intervention. The secondary outcomes included ED length of stay (LOS) and intensive care unit (ICU) admission rate. Results: According to the PS-matched analysis, compared with the control group, QIP-DERP significantly decreased the median TES from 16.7 hours (interquartile range, 9.4-27.5 hours) to 11.6 hours (6.6-21.9 hours) (p < 0.001) and the ICU admission rate from 33.3% (205/616) to 23.9% (295/1232) (p < 0.001). During after-hours, the QIP-DERP significantly reduced median TES from 19.9 hours (12.5-30.1 hours) to 9.6 hours (5.7-19.1 hours) (p < 0.001), median ED LOS from 9.1 hours (5.6-16.5 hours) to 6.7 hours (4.9-11.3 hours) (p < 0.001), and ICU admission rate from 35.5% (108/304) to 22.0% (67/304) (p < 0.001). Conclusion: QIP-DERP implementation improved the quality of emergency surgical management in the ED by reducing TES, ED LOS, and ICU admission rate, particularly during after-hours.

• Journal of Trauma and Injury
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• 제37권1호
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• pp.48-59
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• 2024

Purpose: Research on rib fracture management has exponentially increased. Predicting fracture patterns based on the mechanism of injury (MOI) and other possible correlations may improve resource allocation and injury prevention strategies. The Chest Injury International Database (CIID) is the largest prospective repository of the operative and nonoperative management of patients with severe chest wall trauma. The purpose of this study was to determine whether the MOI is associated with the resulting rib fracture patterns. We hypothesized that specific MOIs would be associated with distinct rib fracture patterns. Methods: The CIID was queried to analyze fracture patterns based on the MOI. Patients were stratified by MOI: falls, motor vehicle collisions (MVCs), motorcycle collisions (MCCs), automobile-pedestrian collisions, and bicycle collisions. Fracture locations, associated injuries, and patient-specific variables were recorded. Heat maps were created to display the fracture incidence by rib location. Results: The study cohort consisted of 1,121 patients with a median RibScore of 2 (range, 0-3) and 9,353 fractures. The average age was 57±20 years, and 64% of patients were male. By MOI, the number of patients and fractures were as follows: falls (474 patients, 3,360 fractures), MVCs (353 patients, 3,268 fractures), MCCs (165 patients, 1,505 fractures), automobile-pedestrian collisions (70 patients, 713 fractures), and bicycle collisions (59 patients, 507 fractures). The most commonly injured rib was the sixth rib, and the most common fracture location was lateral. Statistically significant differences in the location and patterns of fractures were identified comparing each MOI, except for MCCs versus bicycle collisions. Conclusions: Different mechanisms of injury result in distinct rib fracture patterns. These different patterns should be considered in the workup and management of patients with thoracic injuries. Given these significant differences, future studies should account for both fracture location and the MOI to better define what populations benefit from surgical versus nonoperative management.

• Korean Journal of Radiology
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• 제22권2호
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• pp.213-224
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• 2021

Objective: Clinical outcomes of patients who undergo transarterial chemoembolization (TACE) for single small hepatocellular carcinoma (HCC) are not consistent, and may differ based on certain imaging findings. This retrospective study was aimed at determining the efficacy of pre-TACE CT or MR imaging findings in predicting survival outcomes in patients with small HCC upon being treated with TACE. Besides, the study proposed to build a risk prediction model for these patients. Materials and Methods: Altogether, 750 patients with functionally good hepatic reserve who received TACE as the first-line treatment for single small HCC between 2004 and 2014 were included in the study. These patients were randomly assigned into training (n = 525) and validation (n = 225) sets. Results: According to the results of a multivariable Cox analysis, three pre-TACE imaging findings (tumor margin, tumor location, enhancement pattern) and two clinical factors (age, serum albumin level) were selected and scored to create predictive models for overall, local tumor progression (LTP)-free, and progression-free survival in the training set. The median overall survival time in the validation set were 137.5 months, 76.1 months, and 44.0 months for low-, intermediate-, and high-risk groups, respectively (p < 0.001). Time-dependent receiver operating characteristic curves of the predictive models for overall, LTP-free, and progression-free survival applied to the validation cohort showed acceptable areas under the curve values (0.734, 0.802, and 0.775 for overall survival; 0.738, 0.789, and 0.791 for LTP-free survival; and 0.671, 0.733, and 0.694 for progression-free survival at 3, 5, and 10 years, respectively). Conclusion: Pre-TACE CT or MR imaging findings could predict survival outcomes in patients with small HCC upon treatment with TACE. Our predictive models including three imaging predictors could be helpful in prognostication, identification, and selection of suitable candidates for TACE in patients with single small HCC.

• Journal of Trauma and Injury
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• 제33권1호
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• pp.13-17
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• 2020

Purpose: Accurate and appropriate prehospital field triage is essential for a trauma system. The Korean trauma system (established in 2014) uses the trauma field triage algorithm of the United States Centers for Disease Control and Prevention (CDC). This study evaluated the suitability of the CDC field triage criteria for major trauma cases (injury severity score >15) in Korea. Methods: This retrospective cohort study evaluated trauma patients who presented at the authors' regional trauma center from January 1 to May 7, 2017. The undertriage and overtriage rates of each CDC field triage step were calculated. Receiver operating characteristic curves were constructed, and the area under the curve (AUC) was evaluated for each step. Results: Among the 1,009 enrolled patients, 168 (16.7%) had major trauma. The undertriage/overtriage rates of each step (steps I, II, III, and IV) of CDC field triage were 9.2%/47.4%, 6.3%/50.8%, 4.5%/59.4%, and 5.3%/78.9%, respectively. The AUC values of each CDC triage step were 0.722, 0.783, 0.791, and 0.615, respectively. The AUC values of the separate components of each step (physiologic criteria, anatomic criteria, mechanism-of-injury criteria, and special considerations) were 0.722, 0.648, 0.647, and 0.456, respectively. Conclusions: The CDC field triage system is acceptable, but not ideal, for Korean trauma care. If we follow the protocol, it would be preferable to omit step IV. The Korean Triage and Acuity Scale may be a good indicator for in-hospital triage. However, a new triage protocol that is simple to estimate on-scene while having good performance should be developed.

• Archives of Plastic Surgery
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• 제47권5호
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• pp.460-466
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• 2020

Background Sternoclavicular joint (SCJ) osteomyelitis is a rare pathology requiring urgent intervention. Several operative approaches have been described with conflicting reports. Here, we present a multi-institutional study utilizing multiple surgical pathways for SCJ reconstruction. Methods A multi-institutional retrospective cohort study was conducted to identify patients who underwent surgical repair for sternoclavicular osteomyelitis between 2008 and 2019. Patients were stratified according to reconstruction approach: single-stage reconstruction with advancement flap and delayed-reconstruction with flap following initial debridement. Demographics, operative approach, type of reconstruction, and postoperative outcomes were analyzed. Results Thirty-two patients were identified. Mean patient age was 56.2±13.8 years and 68.8% were male. The average body mass index (BMI) was 30.0±8.8 kg/㎡. The most common infection etiologies were intravenous drug use and bacteremia (both 25%). Fourteen patients (43.8%) underwent one-stage reconstruction and 18 (56.2%) underwent delayed two-staged reconstruction. Both single and delayed-stage groups had comparable rates of reinfection (7.1% vs. 11.1%, respectively), surgical site complications (21.4% vs. 27.8%), readmissions (7.1% vs. 16.6%), and reoperations (7.1% vs. 5.6%; all P>0.05). The single-stage reconstruction group had a significantly lower BMI (26.2±5.7 kg/㎡ vs. 32.9±9.1 kg/㎡; P<0.05) and trended towards shorter hospital length of stay (11.3 days vs. 17.9 days; P=0.01). Conclusions Both single and delayed-stage approaches are appropriate methods with comparable outcomes for reconstruction for SCJ osteomyelitis. When clinically indicated, a single-stage reconstruction approach may be preferable in order to avoid a second operation as associated with the delayed phase, and possibly shortening total hospital length of stay.

• 정신신체의학
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• 제25권1호
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• pp.27-32
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• 2017

연구목적 본 연구는 우울 증상과 혈중 콜레스테롤 농도의 연관성이 성별에 따라 차이가 있는지 살펴보고자 하였다. 방법 건강검진을 받은 일반인 중 27,452명(남자 15,044명, 여성 12,408명)을 대상으로 후향적 의무기록 조사를 통하여 이루어졌다. 대상자들의 벡우울척도(Beck Depression Inventory, BDI)점수를 구하고 총콜레스테롤(Total cholesterol, TC), 중성지방(Triglyceride, TG)), 고밀도 지단백 콜레스테롤(High density lipoprotein cholesterol, HDL-C), 저밀도 지단백 콜레스테롤(Low density lipoprotein cholesterol, LDL-C)을 분석하였다. 결과 남성은 총콜레스테롤(TC)과 벡우울척도(BDI) 점수 사이에는 통계적으로 유의한 상관성을 보이지 않았다. 중성지방(TG)은 벡우울척도(BDI) 점수와 양의 상관성을 보였으며(r=0.020, p<0.01), 고밀도 지단백 콜레스테롤(HDL-C)와 저밀도 지단백 콜레스테롤(LDL-C)은 벡우울척도(BDI) 점수와 음의 상관성을 보였다(r=-0.016, p<0.01 ; r=-0.015, p<0.05) 여성의 경우도 총콜레스테롤(TC)과 벡우울척도(BDI) 점수 사이에는 통계적으로 유의한 상관성이 없었으며 중성지방(TG)은 벡우울척도(BDI)점수와 양의 상관성을 보였고(r=0.020, p<0.01) 고밀도 지단백 콜레스테롤(HDL-C)과는 음의 상관성을 보였다(r=-0.019, p<0.01). 남성과 달리 저밀도 지단백 콜레스테롤(LDL-C)은 통계적으로 유의한 상관성을 보이지 않았다. 결론 남녀 모두 중성지방(TG)이 높을수록, 고밀도 지단백 콜레스테롤(HDL-C)이 낮을수록 우울 증상의 정도가 심한 것으로 나타났으며, 남성에서만 저밀도 지단백 콜레스테롤(LDL-C)이 낮을수록 우울 증상이 심한 것으로 나타났다.

• Tuberculosis and Respiratory Diseases
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• 제60권2호
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• pp.205-214
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• 2006

배 경 : 만성폐쇄성폐질환의 급성 악화는 주요한 사회경제적 부담이다. 이 질환의 높은 사망률이 잘 알려져 있지만, 아직까지 급성악화로 입원했던 환자의 장기 예후에 대해서는 잘 알려져 있지 않다. 본 연구의 목적은 만성폐쇄성폐질환의 급성악화로 입원했던 환자에서 장기간 사망의 예측인자를 알아보기 위함이다. 방 법 : 2000년부터 2004년 사이에 만성폐쇄성폐질환의 급성 악화로 입원한 환자를 대상으로 후향적으로 조사하였다. 입원 중 또는 퇴원 후 6개월 이내에 사망하거나 흉부 X-선 촬영에서 결핵반흔, 흉막비후나 기관지확장증이 동반된 경우, 추적기간 중 악성종양을 진단받은 환자는 제외하였다. 결 과 : 평균 연령은 69.5세였고, 추적기간은 49개월이었으며, 평균 $FEV_1$은 1.00L(예측치의 46%)였다. 사망률은 35%(17/48)였다. 다중 Cox 회귀분석 결과 분당 100회 이상의 빈맥과(p=0.003; 상대위험도, 11.99; 95% 신뢰구간, 2.34-61.44) 35mmHg이상의 우심실수축기압이(p=0.019; 상대위험도, 6.85; 95% 신뢰구간, 1.38-34.02) 사망 위험을 높이는 독립적인 예측인자였다. 결 론 : 만성폐쇄성폐질환의 급성악화로 입원했던 환자의 장기간 사망 위험을 예측하는 데 안정시 심장박동수와 우심실수축기압이 유용할 것이다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권14호
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• pp.5715-5719
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• 2015

Background: Breast cancer is the most common malignancy of women in the world. The disease is caused by infectious and non-infectious, environmental and lifestyle factors. Tobacco smoke has been one of the most widely studied environmental factors wiith possible relevance to breast cancer. The purpose of this study was to assess the impact of tobacco smoking in breast cancer patients in a hospital based cohort and to establish prognostic implications if any. Materials and Methods: A retrospective audit of 100 women with pathological diagnosis of invasive breast cancer was included in this study. The verbal questionnaire elicited information on current and previous history of exposure to smoking in addition to active smoking. All analyses were adjusted for potential confounders, including stage at presentation, alcohol intake, hormonal replacement therapy, oral contraceptive intake, obesity and menopausal status. Results: The mean age at presentation of breast cancer was $51.4{\pm}10.86$ years. Mean age of presentation was $53.1{\pm}11.5$ and $45.7{\pm}11.9$ years in never smokers and passive smokers, respectively. Age at presentation varied widely in patients exposed to tobacco smoke for >10 years in childhood from $40.3{\pm}12.0$ years to $47.7{\pm}13.9$ in patients exposed for > 20years as adults. Among passive smokers, 60.9% were premenopausal and 39.1% of patients were postmenopausal. In never smokers, 71.4% were post menopausal. Expression of receptors in non-smokers vs passive smokers was comparable with no significant differences. Metastatic potential in lung parenchyma was slightlyelevated in passive smokers as compared to never smokers although statistically non-significant. Conclusions: An inverse relationship exists between the intensity and duration of smoking and the age at presentation and poor prognostic factors. The results strongly suggest efforts should be taken to prevent smoking, encourage quitting and restrict exposure to second hand smoke in India.

• Journal of Hospice and Palliative Care
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• 제21권3호
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• pp.75-83
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• 2018

목적: 호스피스 완화의료에서 환자의 기대 여명 예측뿐 아니라 퇴원형태를 예측하여 적절한 치료를 제공할 필요가 있다. 이번 연구에서는 입원 초기 환자의 퇴원 형태 예측에 유의한 요소들을 알아보고 효율적인 완화의료의 방향에 대해 제시하고자 한다. 방법: 2016년 4월 1일부터 2017년 12월 31일까지 P병원 호스피스 병동에 입원한 말기암환자 568명 중 377명을 대상으로 하였으며 입원 시 사정한 환자의 수행 지수, 증상 및 징후, 사회 경제적 상태와 혈액검사 자료를 바탕으로 연구를 진행하였다. 결과: 입원 당시 높은 수행지수, 양호한 증상 및 징후, 정상에 가까운 혈액검사 수치를 보일 때 생존 퇴원할 가능성이 높았다. 결론: 환자의 퇴원형태 예측에 ECOG, KPS, Global health, Mental status와 같은 수행지수, dyspnea, anorexia, dysphagia, fatigue와 같은 증상 및 징후, CBC, LFT, BUN, CRP 혈액검사 수치가 유의한 지표임을 확인하였다.