1.Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study
Sung Uk BAE ; Kyeong Eui KIM ; Chang-Woo KIM ; Ji-Hoon KIM ; Woon Kyung JEONG ; Yoon-Suk LEE ; Seong Kyu BAEK ; Suk-Hwan LEE ; Jun-Gi KIM
Annals of Coloproctology 2025;41(2):154-161
Purpose:
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods:
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results:
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.
2.Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study
Sung Uk BAE ; Kyeong Eui KIM ; Chang-Woo KIM ; Ji-Hoon KIM ; Woon Kyung JEONG ; Yoon-Suk LEE ; Seong Kyu BAEK ; Suk-Hwan LEE ; Jun-Gi KIM
Annals of Coloproctology 2025;41(2):154-161
Purpose:
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods:
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results:
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.
3.Re-do laparoscopic common bile duct exploration for recurrent common bile duct stones: a single-center retrospective cohort study
In Ho LEE ; Seung Jae LEE ; Ju Ik MOON ; Sang Eok LEE ; Nak Song SUNG ; Seong Uk KWON ; In Eui BAE ; Seung Jae RHO ; Sung Gon KIM ; Min Kyu KIM ; Dae Sung YOON ; Won Jun CHOI ; In Seok CHOI
Annals of Surgical Treatment and Research 2025;108(5):310-316
Purpose:
Common bile duct (CBD) stone recurrence after laparoscopic CBD exploration (LCBDE) is relatively common. No studies have been conducted evaluating the safety and feasibility of re-do LCBDE in the treatment of recurrent CBD stones.
Methods:
This single-center retrospective study reviewed 340 consecutive patients who underwent LCBDE for CBD stones between January 2004 and December 2020. Patients with pancreatobiliary malignancies and those who underwent other surgical procedures were excluded.
Results:
Of the 340 included patients, 45 experienced a recurrence after a mean follow-up period of 24.2 months. Of them, 18 underwent re-do LCBDE, 20 underwent endoscopic intervention, 2 underwent radiologic intervention, and 5 underwent observation. Re-do LCBDE and initial LCBDE showed similar surgical outcomes in terms of operative time (113.1 minutes vs. 107.5 minutes, P = 0.515), estimated blood loss (42.5 mL vs. 49.1 mL, P = 0.661), open conversion rate (2.9% vs. 0%, P = 0.461), postoperative complication (15.3% vs. 22.2%, P = 0.430), and postoperative hospital stay (6.5 days vs. 6.4 days, P = 0.921). Comparing re-do LCBDE and nonsurgical treatment (endoscopic or radiologic), no statistically significant differences were noted in posttreatment complication (22.2% vs. 13.6%, P = 0.477), hospital stay (6.4 days vs.7.3 days, P = 0.607), and recurrence (50.0% vs. 36.4%, P = 0.385). The clearance rate was higher in the re-do LCBDE group than in the nonsurgical group (100% vs. 81.8%, P = 0.057).
Conclusion
Compared to initial LCBDE and endoscopic or radiological treatments, re-do LCBDE for recurrent CBD stones is a treatment option worth considering in selected patients.
4.Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study
Sung Uk BAE ; Kyeong Eui KIM ; Chang-Woo KIM ; Ji-Hoon KIM ; Woon Kyung JEONG ; Yoon-Suk LEE ; Seong Kyu BAEK ; Suk-Hwan LEE ; Jun-Gi KIM
Annals of Coloproctology 2025;41(2):154-161
Purpose:
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods:
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results:
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.
5.Re-do laparoscopic common bile duct exploration for recurrent common bile duct stones: a single-center retrospective cohort study
In Ho LEE ; Seung Jae LEE ; Ju Ik MOON ; Sang Eok LEE ; Nak Song SUNG ; Seong Uk KWON ; In Eui BAE ; Seung Jae RHO ; Sung Gon KIM ; Min Kyu KIM ; Dae Sung YOON ; Won Jun CHOI ; In Seok CHOI
Annals of Surgical Treatment and Research 2025;108(5):310-316
Purpose:
Common bile duct (CBD) stone recurrence after laparoscopic CBD exploration (LCBDE) is relatively common. No studies have been conducted evaluating the safety and feasibility of re-do LCBDE in the treatment of recurrent CBD stones.
Methods:
This single-center retrospective study reviewed 340 consecutive patients who underwent LCBDE for CBD stones between January 2004 and December 2020. Patients with pancreatobiliary malignancies and those who underwent other surgical procedures were excluded.
Results:
Of the 340 included patients, 45 experienced a recurrence after a mean follow-up period of 24.2 months. Of them, 18 underwent re-do LCBDE, 20 underwent endoscopic intervention, 2 underwent radiologic intervention, and 5 underwent observation. Re-do LCBDE and initial LCBDE showed similar surgical outcomes in terms of operative time (113.1 minutes vs. 107.5 minutes, P = 0.515), estimated blood loss (42.5 mL vs. 49.1 mL, P = 0.661), open conversion rate (2.9% vs. 0%, P = 0.461), postoperative complication (15.3% vs. 22.2%, P = 0.430), and postoperative hospital stay (6.5 days vs. 6.4 days, P = 0.921). Comparing re-do LCBDE and nonsurgical treatment (endoscopic or radiologic), no statistically significant differences were noted in posttreatment complication (22.2% vs. 13.6%, P = 0.477), hospital stay (6.4 days vs.7.3 days, P = 0.607), and recurrence (50.0% vs. 36.4%, P = 0.385). The clearance rate was higher in the re-do LCBDE group than in the nonsurgical group (100% vs. 81.8%, P = 0.057).
Conclusion
Compared to initial LCBDE and endoscopic or radiological treatments, re-do LCBDE for recurrent CBD stones is a treatment option worth considering in selected patients.
6.Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study
Sung Uk BAE ; Kyeong Eui KIM ; Chang-Woo KIM ; Ji-Hoon KIM ; Woon Kyung JEONG ; Yoon-Suk LEE ; Seong Kyu BAEK ; Suk-Hwan LEE ; Jun-Gi KIM
Annals of Coloproctology 2025;41(2):154-161
Purpose:
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods:
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results:
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.
7.Impact of single-port laparoscopic approach on scar assessment by patients and observers: a multicenter retrospective study
Sung Uk BAE ; Kyeong Eui KIM ; Chang-Woo KIM ; Ji-Hoon KIM ; Woon Kyung JEONG ; Yoon-Suk LEE ; Seong Kyu BAEK ; Suk-Hwan LEE ; Jun-Gi KIM
Annals of Coloproctology 2025;41(2):154-161
Purpose:
This study aimed to compare the wound cosmesis of a single-incision approach on scar assessment after laparoscopic surgery for colon cancer.
Methods:
This study included 32 patients undergoing single-port laparoscopic surgery (SPLS) and 61 patients undergoing multiport laparoscopic surgery (MPLS) for colon cancer at 3 tertiary referral hospitals between September 2011 and December 2019. We modified and applied the Korean version of the Patient and Observer Scar Assessment Scale (POSAS) to assess cosmetic outcomes. To assess the interobserver reliability using intraclass correlation coefficient values for the Observer Scar Assessment Scale (OSAS), the surgeons evaluated 5 images of postoperative scars.
Results:
No significant differences were observed in the time before the return of normal bowel function, time to sips of water and soft diet initiation, length of in-hospital stay, and postoperative complication rate. The SPLS group had a shorter total incision length than the MPLS group. The POSAS favored the SPLS approach, revealing significant differences in the Patient Scar Assessment Scale (PSAS), OSAS, and overall scores. The SPLS approach was an independent factor influencing the POSAS, PSAS, and OSAS scores. Eleven colorectal surgeons had a significantly substantial intraclass coefficient.
Conclusion
The cosmetic outcomes of SPLS as assessed by the patients and surgeons were superior to those of MPLS in colon cancer. Reducing the number of ports is an independent factor affecting scar assessment by patients and observers.
8.Re-do laparoscopic common bile duct exploration for recurrent common bile duct stones: a single-center retrospective cohort study
In Ho LEE ; Seung Jae LEE ; Ju Ik MOON ; Sang Eok LEE ; Nak Song SUNG ; Seong Uk KWON ; In Eui BAE ; Seung Jae RHO ; Sung Gon KIM ; Min Kyu KIM ; Dae Sung YOON ; Won Jun CHOI ; In Seok CHOI
Annals of Surgical Treatment and Research 2025;108(5):310-316
Purpose:
Common bile duct (CBD) stone recurrence after laparoscopic CBD exploration (LCBDE) is relatively common. No studies have been conducted evaluating the safety and feasibility of re-do LCBDE in the treatment of recurrent CBD stones.
Methods:
This single-center retrospective study reviewed 340 consecutive patients who underwent LCBDE for CBD stones between January 2004 and December 2020. Patients with pancreatobiliary malignancies and those who underwent other surgical procedures were excluded.
Results:
Of the 340 included patients, 45 experienced a recurrence after a mean follow-up period of 24.2 months. Of them, 18 underwent re-do LCBDE, 20 underwent endoscopic intervention, 2 underwent radiologic intervention, and 5 underwent observation. Re-do LCBDE and initial LCBDE showed similar surgical outcomes in terms of operative time (113.1 minutes vs. 107.5 minutes, P = 0.515), estimated blood loss (42.5 mL vs. 49.1 mL, P = 0.661), open conversion rate (2.9% vs. 0%, P = 0.461), postoperative complication (15.3% vs. 22.2%, P = 0.430), and postoperative hospital stay (6.5 days vs. 6.4 days, P = 0.921). Comparing re-do LCBDE and nonsurgical treatment (endoscopic or radiologic), no statistically significant differences were noted in posttreatment complication (22.2% vs. 13.6%, P = 0.477), hospital stay (6.4 days vs.7.3 days, P = 0.607), and recurrence (50.0% vs. 36.4%, P = 0.385). The clearance rate was higher in the re-do LCBDE group than in the nonsurgical group (100% vs. 81.8%, P = 0.057).
Conclusion
Compared to initial LCBDE and endoscopic or radiological treatments, re-do LCBDE for recurrent CBD stones is a treatment option worth considering in selected patients.
9.Comparison between liquid skin adhesive and wound closure strip for skin closure after subcuticular suturing in single-port laparoscopic appendectomy:a single-center retrospective study in Korea
Kyeong Eui KIM ; Yu Ra JEON ; Sung Uk BAE ; Woon Kyung JEONG ; Seong Kyu BAEK
Journal of Minimally Invasive Surgery 2024;27(1):14-22
Purpose:
This study was performed to evaluate the safety and feasibility of skin adhesives and to compare postoperative and cosmetic outcomes after wound closure in single-port laparoscopic appendectomy (SPLA) between skin adhesives and steri-strips.
Methods:
This was a single-center retrospective study. We included 22 and 47 patients in whom skin adhesive and steri-strips were used respectively, for skin closure after subcuticular suturing in SPLA between August 2014 and 2020. The patient scar assessment questionnaire (PSAQ) was completed postoperatively to assess postoperative cosmetic outcomes.
Results:
On the postoperative day, patients in whom skin adhesive was used had significantly lower numeric rating scores than in whom steri-strips were used (2.8 ± 0.8 vs. 3.9 ± 0.8, p < 0.001). The frequency of analgesic administration within 24 hours and between 24 and 48 hours after surgery was significantly lower in the skin adhesive group compared to the wound closure strip group (1.4 ± 0.8 vs. 2.7 ± 1.2, p = 0.013 and 0.2 ± 0.4 vs. 0.7 ± 0.9, p = 0.002, respectively). In the PSAQ, “satisfaction with appearance” and “satisfaction with symptoms” subitem scores were significantly lower in patients in whom skin adhesive was used (11.3 ± 3.0 vs. 15.1 ± 4.5, p = 0.006 and 6.5 ± 1.8 vs. 9.5 ± 3.3, p = 0.003), whereas, “appearance” and “consciousness” subitems revealed no statistically significant differences between the groups.
Conclusion
Liquid skin adhesive closures seem to be safe and feasible and cause less postoperative pain, resulting in greater patient satisfaction with postoperative scars than wound closure strip closure after subcuticular suturing in SPLA.
10.Treatment Response With Potassium-competitive Acid Blockers Based on Clinical Phenotypes of Gastroesophageal Reflux Disease: A Systematic Literature Review and Meta-analysis
Seungyeon SEO ; Hye-Kyung JUNG ; C Prakash GYAWALI ; Hye Ah LEE ; Hyung Seok LIM ; Eui Sun JEONG ; Seong Eun KIM ; Chang Mo MOON
Journal of Neurogastroenterology and Motility 2024;30(3):259-271
Background/Aims:
Gastroesophageal reflux disease (GERD) is typically managed based on the clinical phenotype. We evaluated the efficacy and safety of potassium-competitive acid blockers (PCABs) in patients with various clinical GERD phenotypes.
Methods:
Core databases were searched for studies comparing PCABs and proton pump inhibitors (PPIs) in clinical GERD phenotypes of erosive reflux disease (ERD), non-erosive reflux disease (NERD), PPI-resistant GERD and night-time heartburn. Additional analysis was performed based on disease severity and drug dosage, and pooled efficacy was calculated.
Results:
In 9 randomized controlled trials (RCTs) evaluating the initial treatment of ERD, the risk ratio for healing with PCABs versus PPIs was 1.09 (95% CI, 1.04-1.13) at 2 weeks and 1.03 (95% CI, 1.00-1.07) at 8 weeks, respectively. PCABs exhibited a significant increase in both initial and sustained healing of ERD compared to PPIs in RCTs, driven particularly in severe ERD (Los Angeles grade C/D).In 3 NERD RCTs, PCAB was superior to placebo in proportion of days without heartburn. Observational studies on PPI-resistant symptomatic GERD reported symptom frequency improvement in 86.3% of patients, while 90.7% showed improvement in PPIresistant ERD across 5 observational studies. Two RCTs for night-time heartburn had different endpoints, limiting meta-analysis. Pronounced hypergastrinemia was observed in patients treated with PCABs.
Conclusions
Compared to PPIs, PCABs have superior efficacy and faster therapeutic effect in the initial and maintenance therapy of ERD, particularly severe ERD. While PCABs may be an alternative treatment option in NERD and PPI-resistant GERD, findings were inconclusive in patients with night-time heartburn.

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