1.Comparing single-patient and multi-patient room intensive care units: a multicenter cohort study on architectural differences and clinical significance in South Korea
Daun JEONG ; Donghyoun LEE ; Kyoung Won YOON ; Hyo Jin KIM ; Sun Young CHOI ; Chi-Min PARK
Acute and Critical Care 2025;40(2):160-170
Background:
The design of intensive care units (ICUs) is increasingly acknowledged as a crucial factor affecting patient outcomes. Transitioning from multi-bed patient rooms (MPRs) to single-bed patient rooms (SPRs) aims to improve infection control, patient privacy, and quality of care. However, concerns remain regarding potential patient isolation and reduced staff situational awareness. This study aims to evaluate clinical outcomes in SPR-structured ICUs compared to mixed SPR and MPR ICUs.
Methods:
This multicenter retrospective cohort study was conducted across three university-affiliated tertiary hospitals between April 2022 and August 2023. The study population included ICU patients aged ≥18 years, excluding those admitted to cardiac and neonatal ICUs. Outcomes assessed included ICU mortality and severity scores based on Simplified Acute Physiology Score 3 and Acute Physiology and Chronic Health Evaluation II scores.
Results:
This study included 3,179 ICU patients across three sites: site A consisted exclusively of SPRs, while sites B and C had mixed SPR and MPR arrangements. ICU mortality rates were 8.3%, 15.2%, and 9.7% for sites A, B, and C, respectively (P<0.001). Propensity score matching and logistic regression analysis demonstrated that SPRs were associated with significantly reduced ICU mortality (adjusted odds ratio, 0.54; 95% CI, 0.40–0.73).
Conclusions
SPRs were associated with a protective effect, reducing ICU mortality. Clinical outcomes in ICUs appear to be influenced by structural design improvements alongside other clinical factors.
2.Lesson from COVID-19 outbreak; importance of standard precautions to febrile neutropenia prevention in patients with breast cancer who received adjuvant chemotherapy:a retrospective observational study
Ji Eun PARK ; Jieun YANG ; Sanghoon HAN ; Jeong Rae YOO ; Misun KIM ; Donghyoun LEE ; Jaemin JO
Annals of Surgical Treatment and Research 2024;107(4):195-202
Purpose:
Intensive cytotoxic chemotherapy increases the risk of infection in patients with cancer by inducing bone marrow suppression and mucosal injury. Febrile neutropenia (FN) is the most important clinical adverse event in patients with cancer receiving cytotoxic chemotherapy. To prevent FN, standard precautions including hand and respiratory hygiene are generally recommended, but the exact effect of non-pharmacologic intervention has not been clearly proven in the clinical setting. We aimed to compare the incidence of FN between the pre-coronavirus disease 19 (COVID-19) era vs. the postCOVID-19 era.
Methods:
We retrospectively enrolled patients with breast cancer who received an adriamycin and cyclophosphamide (AC) regimen containing adjuvant chemotherapy at Jeju National University Hospital. We compared the incidence of FN between the pre- and post-COVID-19 period and analyzed characteristics of the event and other clinical risk factors.
Results:
In total, 149 patients were enrolled, including 94 who received AC chemotherapy in the pre-COVID-19 era and 55 who received it in the post-COVID-19 era. Sixteen patients (10.7%) experienced FN. Fourteen (14.9%) and 2 events (3.6%) occurred in pre-COVID-19 and post-COVID-19 eras, respectively. The post-COVID-19 era was the only risk factor for FN (P = 0.032).
Conclusion
We found an association between FN occurrence and the COVID-19 outbreak, providing indirect evidence of the importance of non-pharmacological measures to reduce FN risk in patients with breast cancer. Further research is required to confirm the standard precautions for FN prevention in patients with cancer.
3.Unveiling the profound advantages of total neoadjuvant therapy in rectal cancer: a trailblazing exploration
Kyung Uk JUNG ; Hyung Ook KIM ; Hungdai KIM ; Donghyoun LEE ; Chinock CHEONG ;
Annals of Surgical Treatment and Research 2023;105(6):341-352
The standard treatments for locally advanced rectal cancer typically involved neoadjuvant therapy with either short-course radiation or long-course chemoradiation, followed by radical surgery and adjuvant chemotherapy. While the advancement of surgical techniques and the adoption of multimodal therapy have greatly contributed to reducing local failure, there has been limited improvement in overall survival, primarily due to the stagnation in systemic failure. In response to this challenge, a new strategy known as total neoadjuvant therapy (TNT) has emerged, involving the administration of both fulldose chemotherapy and radiation before surgery. It has shown promise in reducing systemic failure, enhancing tumor regression, and improving treatment adherence, ushering in a new era in the standard treatment of locally advanced rectal cancer. This review aims to summarize the evolution of multimodal treatments for locally advanced rectal cancer, ultimately converging into the current TNT strategy, and provides an assessment of the benefits and limitations of TNT based on available evidence, serving as a foundation for selecting the best treatment option.
4.Submandibular Injury Caused by the Close-Range Firing of a Military Blank Cartridge Shot
Hyo Jin KIM ; Donghyoun LEE ; Kyungwon LEE
Journal of Acute Care Surgery 2023;13(1):35-38
Few studies have reported injuries caused by a blank cartridge shot (BCS) into the head and neck. We experienced a case of minor injury resulting from BCS (despite the close proximity). The patient was a 20-year-old male soldier who attempted suicide by firing a BCS from a K2 rifle into his mouth. He suffered from skin and soft tissue defect in the submandibular area with burns and minimal bleeding. A computed tomography scan showed subcutaneous emphysema which was suspected to be related to the projectile gas released during the firing of the BCS, and a tiny fragment without hematoma or structure injuries. We closely observed the clinical features including the occurrence of infection and functional abnormalities. The subcutaneous emphysema faded away along with the soft tissue defect. After wound management was completed on the 13th hospital day, the patient was transferred to the Department of Psychiatry without any problems.
5.Gluteal and Presacral Abscess Due to Crohn’s Disease with Multiple Fistulas
Hui Jeong JWA ; Hyun Joo SONG ; Hogyung JUN ; Seong Taeg KIM ; Sun-Jin BOO ; Heung Up KIM ; Donghyoun LEE
The Korean Journal of Gastroenterology 2022;80(6):267-272
The abscess is a common complication of Crohn’s disease (CD), with the perianal form more frequent than gluteal or presacral which is relatively rare. There are few case reports of gluteal abscess combined with presacral abscess caused by CD and the treatment has not been established. A 21-year-old male was admitted with right buttock and lower back pain with a duration of 3 months. He had a history of CD in the small intestine diagnosed 10 months previously. He had poor compliance and had not returned for follow-up care during the previous 6 months. Abdominopelvic CT indicated newly developed multiple abscess pockets in right gluteal region, including piriformis muscle and presacral space. Additionally, fistula tracts between small bowel loops and presacral space were observed. Patient’s CD was moderate activity (273.12 on the Crohn’s Disease Activity Index [CDAI]). Treatment was started with piperacillin/tazobactam antibiotic but patient developed a fever and abscess extent was aggravated. Therefore, surgical incision and drainage was performed and 4 Penrose drains were inserted. Patient’s pain and fever were resolved following surgery. Infliximab was then administered for the remaining fistulas. After the induction regimen, multiple fistula tracts improved and patient went into remission (CDAI was -0.12).
6.Is a cutoff value of 12 still useful in stage II right-sided colon cancer without risk factors?
Jinseok HWANG ; Donghyoun LEE ; Jung Kyong SHIN ; Jae Hyuck JANG ; Jung Wook HUH ; Yoon Ah PARK ; Yong Beom CHO ; Hee Cheol KIM ; Seong Hyeon YUN ; Woo Yong LEE ; Ho-Kyung CHUN
Korean Journal of Clinical Oncology 2022;18(1):27-35
Purpose:
Various clinical practice guidelines recommend at least 12 regional lymph nodes should be removed for resected colon cancer. According to a recent study, the lymph node yield (LNY) in colon cancer surgery in the last 20 years has tended to increase from 14.91 to 21.30. However, it is unclear whether these guidelines adequately reflect recent findings on the number of harvested lymph nodes in colon cancer surgery. The aim of this study is to assess the impact of an LNY of more than 25 on survival in right-sided colon cancer.
Methods:
We included 285 patients who underwent a right hemicolectomy during the period from January 2010 through December 2015. Patients were divided into two groups (<25 nodes and ≥25 nodes). Primary endpoints included 5-year and 10-year survival including disease-free and overall.
Results:
We found that survival outcomes of patients with a harvest of ≥25 nodes were not significantly different compared with a <25 group. Large tumor size (5 cm) is significantly associated with poor 5-year and 10-year overall survival.
Conclusion
Survival outcomes of patients with a harvest of ≥25 nodes were not significantly different compared with the <25 group in stage II colon cancer with no risk.
8.Routine Intraoperative Bacterial Culture May Be Needed in Complicated Appendicitis
Jung Tack SON ; Gue Chun LEE ; Hyung Ook KIM ; Taewoon KIM ; Donghyoun LEE ; Sung Ryol LEE ; Kyung Uk JUNG ; Hungdai KIM ; Ho-Kyung CHUN
Annals of Coloproctology 2020;36(3):155-162
Purpose:
Choosing the appropriate antibiotic is important for treatment of complicated appendicitis. However, increasing multidrug resistant bacteria have been a serious problem for successful treatment. This study was designed to identify bacteria isolated from patients with complicated appendicitis and reveal their susceptibilities for antibiotics and their relationship with patient clinical course.
Methods:
This study included patients diagnosed with complicated appendicitis and examined the bacterial cultures and antimicrobial susceptibilities of the isolates. Data were retrospectively collected from medical records of Kangbuk Samsung Hospital from January 2008 to February 2018.
Results:
The common bacterial species cultured in complicated appendicitis were as follows: Escherichia coli (n=113, 48.9%), Streptococcus spp. (n=29, 12.6%), Pseudomonas spp. (n=23, 10.0%), Bacteriodes spp. (n=22, 9.5%), Klebsiella (n=11, 4.8%), and Enterococcus spp. (n=8, 3.5%). In antibiotics susceptibility testing, the positive rate of extended-spectrum beta lactamase (ESBL) was 9.1% (21 of 231). The resistance rate to carbapenem was 1.7% (4 of 231), while that to vancomycin was 0.4% (1 of 231). E. coli was 16.8% ESBL positive (19 of 113) and had 22.1% and 19.5% resistance rates to cefotaxime and ceftazidime, respectively. Inappropriate empirical antibiotic treatment (IEAT) occurred in 55 cases (31.8%) and was significantly related with organ/space surgical site infection (SSI) (7 of 55, P=0.005).
Conclusion
The rate of antibiotic resistance organisms was high in community-acquired complicated appendicitis in Koreans. Additionally, IEAT in complicated appendicitis may lead to increased rates of SSI. Routine intraoperative culture in patients with complicated appendicitis may be an effective strategy for appropriate antibiotic regimen.
9.Bowel Preparation for Surveillance Colonoscopy After Colorectal Resection: A New Perspective
Annals of Coloproctology 2019;35(3):129-136
PURPOSE: Inadequate bowel preparation (IBP) is commonly observed during surveillance colonoscopy after colorectal resection. We investigated potential risk factors affecting bowel preparation. METHODS: We studied potential factors affecting bowel preparation quality. The Boston bowel preparation score was used to measure bowel preparation quality. Factors affecting IBP were analyzed, including age, body mass index, time elapsed between surgery and colonoscopy, and amount of bowel preparation drug consumed (conventional-volume vs. low-volume). Odds ratios were calculated for IBP. RESULTS: This retrospective cohort study included 1,317 patients who underwent colorectal resection due to malignancy. Of these patients, 79% had adequate bowel preparation and 21% had IBP. In multivariate regression analysis, a surveillance colonoscopy within 1 year after surgery and age >80 were used as independent predictors of IBP. IBP rate of the low-volume group was significantly higher than that of the conventional-volume group among patients who underwent a surveillance colonoscopy within 1 year after surgery. CONCLUSION: For surveillance colonoscopy after colorectal resection, bowel preparation is affected by factors including colonoscopy timing after surgery and age. We recommend the use of conventional-volume 4-L polyethylene glycol solution when performing a surveillance colonoscopy, especially up to 1 year after surgery.
Body Mass Index
;
Cohort Studies
;
Colonic Neoplasms
;
Colonoscopy
;
Humans
;
Odds Ratio
;
Polyethylene Glycols
;
Rectal Neoplasms
;
Retrospective Studies
;
Risk Factors
10.Outcomes of Hand-Assisted Laparoscopic Surgery for Colorectal Disease in an Emergency Setting.
Yongbog KIM ; Yuanyu CHENG ; Donghyoun LEE ; Hyung Ook KIM ; Hungdai KIM ; Ho Kyung CHUN ; Kyung Uk JUNG
Journal of Minimally Invasive Surgery 2017;20(4):143-149
PURPOSE: Laparoscopic surgery is accepted as a standard alternative to open procedures in the management of both benign and malignant colorectal disease. However, the safety and efficacy of the laparoscopic approach for emergency colorectal surgery has not been established. Hand-assisted laparoscopic (HAL) surgery might be a suitable option for colectomy in an emergency setting. The aim of this study was to report our experience of emergency HAL colectomy. METHODS: This was a retrospective review of consecutive colorectal emergency cases that were treated using HAL colectomy. Patient demographics, indications for surgery, operative details, and postoperative complications were examined. RESULTS: From March 2015 to April 2016, 18 patients underwent emergency HAL colectomy for complicated colorectal disease. Eight patients (44%) had an obstruction that required intraoperative decompression procedure. Sixteen patients (89%) had a perforation (five of which were sealed perforations involving large abscesses and inflammatory changes). Eight patients underwent sigmoidectomy, four underwent anterior resection, one underwent low anterior resection, two underwent left hemicolectomy, and three underwent Hartmann's procedure. There were two instances of open conversion (11%). The median duration of surgery was 178 minutes. The median time to bowel function recovery and median postoperative stay were 3 days and 10 days, respectively. The postoperative complication rate associated with the operation was 33% (6/18). There was one postoperative mortality. CONCLUSION: For the experienced surgeon, HAL can be a reasonable option for emergency colorectal surgery.
Abscess
;
Colectomy
;
Colorectal Surgery
;
Decompression
;
Demography
;
Emergencies*
;
Hand-Assisted Laparoscopy*
;
Humans
;
Laparoscopy
;
Mortality
;
Postoperative Complications
;
Recovery of Function
;
Retrospective Studies

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