1.Performance Evaluation of the 2020 European Society of Cardiology 0-hour/1-hour Algorithm Using High-sensitivity Cardiac Troponin I for Non-ST-segment Elevation Acute Coronary Syndrome and Mortality Assessment Based on 1-year Real-world Data
Changhee HA ; Yeon Jae LEE ; Jong Do SEO ; Hanah KIM ; Hee-Won MOON ; Mina HUR ; Young Hwan LEE ; Sang O PARK ; Kyeong Ryong LEE ; Hyun-Joong KIM ; Yeo-Min YUN
Annals of Laboratory Medicine 2026;46(1):52-61
Background:
The 2020 European Society of Cardiology (ESC) 0-hr/1-hr algorithm using high-sensitivity cardiac troponin I (hs-cTnI) for non-ST-segment elevation acute coronary syndrome (NSTE-ACS) aims at early diagnosis and shorter emergency department (ED) stays. While this algorithm has been well-established in controlled studies, real-world implementation remains challenging. We evaluated the algorithm’s clinical performance and risk stratification capability in patients with chest pain or discomfort.
Methods:
We measured hs-cTnI in 4,678 patients suspected of NSTE-ACS between August 2022 and July 2023, using an Atellica IM Analyzer (Siemens Healthineers, Erlangen, Germany). We categorized patients into rule-in, observe, or rule-out groups according to the algorithm and assessed its diagnostic performance for NSTE-ACS. The final diagnosis of NSTE-ACS was adjudicated by two independent physicians. Additionally, we evaluated 30-day all-cause mortality, hazard risk, and ED length of stay across the three groups.
Results:
The algorithm categorized 3,408 (72.9%), 573 (12.2%), and 697 (14.9%) patients into the rule-out, observe, and rule-in groups, respectively. Among 90 patients diagnosed as having NSTE-ACS, none were falsely categorized into the rule-out group. Survival analysis revealed significant differences (P < 0.001), with Cox hazard ratios of 2.38 (95% confidence interval: 1.20–4.71) and 6.39 (3.45–11.86) in the observe and rule-in groups, respectively. ED stays shortened in the order of rule-out, observe, and rule-in groups (P < 0.001).
Conclusions
The 2020 ESC 0-hr/1-hr algorithm demonstrates excellent diagnostic accuracy without false rule-outs and effective risk stratification, and contributes to efficient ED throughput, supporting its clinical utility in real-world emergency settings.
2.Is Hip Center Elevation an Acceptable Choice for Total Hip Arthroplasty for Legg-Calvé-Perthes Disease? Perioperative Complications and Patient-Reported Outcomes
Min Uk DO ; Kyeong Baek KIM ; Sang-Min LEE ; Jae Jin KIM ; Kuen Tak SUH ; Won Chul SHIN
Clinics in Orthopedic Surgery 2026;18(1):30-39
Background:
When positioning the acetabular component for total hip arthroplasty (THA) in patients with sequelae of LeggCalvé-Perthes disease (LCPD), elevating the center of rotation (COR) of the hip is often unavoidable. We aimed to compare the outcomes between the preserved and elevated COR groups in patients with sequelae of LCPD.
Methods:
We enrolled 53 patients who underwent primary THA for sequelae of LCPD between 2006 and 2019. Patients were divided into 2 groups based on the postoperative COR position: 19 in the preserved COR group and 34 in the elevated COR group.The mean elevation of COR was 2.7 mm (range, 0–5.0 mm) in the preserved COR group and 8.1 mm (range, 6.0–12.0 mm) in the elevated COR group. Radiological outcomes, such as osteolysis and implant loosening, were evaluated. Additionally, reoperation, perioperative complications, limping gait, pelvic obliquity, and the modified Harris hip score (mHHS) were assessed.
Results:
There were no significant differences in radiological or clinical outcomes between the 2 groups. Neither osteolysis nor implant loosening was observed, and no reoperations were required. Intraoperative periprosthetic femoral fractures occurred in 3 cases (6%), but no cases of sciatic nerve palsy were observed. Residual limping gait was noted in 10 patients (19%), and pelvic obliquity persisted in 8 patients (15%). At the last follow-up, the mean mHHS was 89.2.
Conclusions
The 5–17-year follow-up results of primary cementless THA in patients with sequelae of LCPD were satisfactory.Furthermore, a moderate elevation of the COR, with a mean of 8.1 mm (range, 6.0–12.0 mm), did not significantly affect the outcomes of THA in these patients. Therefore, a moderate elevation of the COR can be considered an acceptable option for patients undergoing THA with sequelae of LCPD.
3.High vegetable consumption and regular exercise are associated with better quality of life in patients with gout
Hyunsue DO ; Hyo Jin CHOI ; Byoongyong CHOI ; Chang-Nam SON ; Sang-Hyon KIM ; You-Jung HA ; Ji Hyoun KIM ; Min Jung KIM ; Kichul SHIN ; Hyun-Ok KIM ; Ran SONG ; Sung Won LEE ; Joong Kyong AHN ; Seung-Geun LEE ; Chang Hoon LEE ; Kyeong Min SON ; Ki Won MOON
The Korean Journal of Internal Medicine 2024;39(5):845-854
Background/Aims:
The Gout Impact Scale (GIS), a part of the Gout Assessment Questionnaire 2.0, is used to measure gout-specific health-related quality of life (HRQOL). Although several studies have been conducted on the factors affecting the HRQOL of patients with gout, few have focused on lifestyle factors. This study aimed to investigate the correlation between lifestyle habits and HRQOL using the GIS in patients with gout.
Methods:
We used data from the Urate-Lowering TheRApy in Gout (ULTRA) registry, a prospective cohort of Korean patients with gout treated at multiple centers nationwide. The patients were aged ≥18 years and met the 2015 American College of Rheumatology/European League Against Rheumatism gout classification criteria. They were asked to complete a GIS and questions regarding their lifestyle habits at enrollment.
Results:
The study included 232 patients. ‘Gout concern overall’ scores in the GIS were significantly lower in patients who exercised more frequently and consumed soft drinks and meat less, and ‘well-being during attack’ scores were significantly lower in patients who consumed vegetables and exercised more frequently. The frequency of vegetable consumption had a negative linear relationship with the ‘well-being during attack’ and ‘gout concern during attack’ scores (p = 0.01, p = 0.001, respectively). The frequency of exercise had a negative linear relationship with the ‘gout concern overall’ and ‘gout concern during attack’ scores (p = 0.04 and p = 0.002, respectively).
Conclusions
Patients with gout who frequently consumed vegetables and exercised regularly experienced less impact of gout, exhibiting a better GIS that represented HRQOL.
4.Apoptotic effect of betulinic acid in FaDu human head and neck squamous cell carcinomas
Kyeong-Rok KANG ; Jae-Sung KIM ; Jeong-Yeon SEO ; HyangI LIM ; Do Kyung KIM
Oral Biology Research 2024;48(3):82-88
Betulinic acid (3-beta-hydroxy-lup20[29]-en-28-oic acid) has attracted significant attention due to its diverse biological and pharmacological activities, including anti-inflammatory, antimicrobial, antiviral, antidiabetic, antimalarial, anti-human immunodeficiency virus, and antitumor effects. However, its effectiveness against oral cancer remains unknown. This study aimed to evaluate the effect of betulinic acid on the induction of apoptosis in FaDu human pharyngeal carcinoma cells by performing 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, LIVE/DEAD stain, 4',6-diamidino-2-phenylindole (DAPI) stain and western blot. In the MTT assay, LIVE/DEAD stain, and DAPI stain analyses, betulinic acid increased FaDu cell apoptosis in a concentration-dependent manner. Apoptosis induced by betulinic acid in FaDu cells was mediated by the expression of Fas and the activation of caspase-8, caspase-3, and poly (ADP-ribose) polymerase. Western blotting revealed that B-cell lymphoma 2 (Bcl-2) and B-cell lymphoma-extra large were downregulated, while Bcl-2-associated death promoter and Bcl-2-associated X protein were upregulated by betulinic acid in FaDu cells. These findings indicate that betulinic acid inhibits cell proliferation in FaDu human pharyngeal carcinoma cells and induces apoptosis through both apoptotic receptor-mediated exogenous apoptosis and mitochondrialmediated endogenous apoptosis pathways.
5.A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement
In Kyeong CHOI ; Do Hyun CHUNG ; Do Won KIM ; Jungirl SEOK
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(11):591-595
A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.
6.Clinical impact of a multimodal pain management protocol for loop ileostomy reversal
Jeong Sub KIM ; Chul Seung LEE ; Jung Hoon BAE ; Seung Rim HAN ; Do Sang LEE ; In Kyu LEE ; Yoon Suk LEE ; In Kyeong KIM
Annals of Coloproctology 2024;40(3):210-216
Purpose:
As introduced, multimodal pain management bundle for ileostomy reversal may be considered to reduce postoperative pain and hospital stay. The aim of this study was to evaluate clinical efficacy of perioperative multimodal pain bundle for ileostomy.
Methods:
Medical records of patients who underwent ileostomy reversal after rectal cancer surgery from April 2017 to March 2020 were analyzed. Sixty-seven patients received multimodal pain bundle protocol with ileostomy reversal (group A) and 41 patients underwent closure of ileostomy with conventional pain management (group B).
Results:
Baseline characteristics, including age, sex, body mass index, American Society of Anesthesiologists classification, diabetes mellitus, and smoking history, were not significantly different between the groups. The pain score on postoperative day 1 was significant lower in group A (visual analog scale, 2.6 ± 1.3 vs. 3.2 ± 1.2; P = 0.013). Overall consumption of opioid in group A was significant less than group B (9.7 ± 9.5 vs. 21.2 ± 8.8, P < 0.001). Hospital stay was significantly shorter in group A (2.3 ± 1.5 days vs. 4.1 ± 1.5 days, P < 0.001). There were no significant differences between the groups in postoperative complication rate.
Conclusion
Multimodal pain protocol for ileostomy reversal could reduce postoperative pain, usage of opioid and hospital stay compared to conventional pain management.
7.A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement
In Kyeong CHOI ; Do Hyun CHUNG ; Do Won KIM ; Jungirl SEOK
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(11):591-595
A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.
8.A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement
In Kyeong CHOI ; Do Hyun CHUNG ; Do Won KIM ; Jungirl SEOK
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(11):591-595
A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.
9.A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement
In Kyeong CHOI ; Do Hyun CHUNG ; Do Won KIM ; Jungirl SEOK
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(11):591-595
A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.
10.A Case of Posterior Tracheal Wall Rupture During Tracheostomy Treated With Sternocleidomastoid Muscle Reinforcement
In Kyeong CHOI ; Do Hyun CHUNG ; Do Won KIM ; Jungirl SEOK
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(11):591-595
A posterior tracheal wall rupture is a rare but life-threatening complication of tracheostomy. Several flaps based on the sternocleidomastoid (SCM) muscle, which has sufficient length and abundant blood supply, are utilized for the reconstruction of tracheal defects. We discuss here a case of a 71-year-old male with multiple organ failure and mental retardation, with posterior tracheal wall damage that had occurred during tracheostomy tube insertion. When planning the repair of the wound, additional reinforcement was necessary due to saliva leakage secondary to decreased consciousness. Direct suturing was followed by the reinforcement of SCM muscle transposition, which was conducted through cervical and endoscopic approach.

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