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.Efficacy of transversus abdominis plane block in postoperative pain management of laparoscopic totally extraperitoneal inguinal hernia repair: a propensity score-matched analysis
Gimin LEE ; Sanghyuk MOON ; Nagyeong KIM ; Daeun BAEK ; Nak-Hoon SON ; Kyeong Hwan SEO ; Eunyoung JUNG
Annals of Surgical Treatment and Research 2025;108(1):57-63
Purpose:
Transversus abdominis plane (TAP) block is a promising technique for postoperative pain control. In this study, we aimed to evaluate the efficacy of the TAP block in managing postoperative pain after laparoscopic totally extraperitoneal (TEP) inguinal hernia repair.
Methods:
In this retrospective study, medical records of patients who had received ultrasonography-guided TAP blocks after surgery from January 2019 to August 2023 were reviewed and compared with those of patients who had not received. Propensity score matching was controlled for age as a confounder. Postoperative pain levels were measured using the numeric rating scale (NRS).
Results:
After matching, 95 patients were included in each group. The TAP block group (2.7 vs. 4.0, P < 0.001) had significantly lower NRS scores immediately and early postoperative pain than the control group (1.9 vs. 2.5, P < 0.001). However, there was no significant difference between the 2 groups in terms of postoperative complications (P > 0.05).
Conclusion
TAP block is effective and safe for managing immediate and early postoperative pain in laparoscopic TEP inguinal hernia repair and does not increase the risk of complications.
3.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.
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.Efficacy of transversus abdominis plane block in postoperative pain management of laparoscopic totally extraperitoneal inguinal hernia repair: a propensity score-matched analysis
Gimin LEE ; Sanghyuk MOON ; Nagyeong KIM ; Daeun BAEK ; Nak-Hoon SON ; Kyeong Hwan SEO ; Eunyoung JUNG
Annals of Surgical Treatment and Research 2025;108(1):57-63
Purpose:
Transversus abdominis plane (TAP) block is a promising technique for postoperative pain control. In this study, we aimed to evaluate the efficacy of the TAP block in managing postoperative pain after laparoscopic totally extraperitoneal (TEP) inguinal hernia repair.
Methods:
In this retrospective study, medical records of patients who had received ultrasonography-guided TAP blocks after surgery from January 2019 to August 2023 were reviewed and compared with those of patients who had not received. Propensity score matching was controlled for age as a confounder. Postoperative pain levels were measured using the numeric rating scale (NRS).
Results:
After matching, 95 patients were included in each group. The TAP block group (2.7 vs. 4.0, P < 0.001) had significantly lower NRS scores immediately and early postoperative pain than the control group (1.9 vs. 2.5, P < 0.001). However, there was no significant difference between the 2 groups in terms of postoperative complications (P > 0.05).
Conclusion
TAP block is effective and safe for managing immediate and early postoperative pain in laparoscopic TEP inguinal hernia repair and does not increase the risk of complications.
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.Efficacy of transversus abdominis plane block in postoperative pain management of laparoscopic totally extraperitoneal inguinal hernia repair: a propensity score-matched analysis
Gimin LEE ; Sanghyuk MOON ; Nagyeong KIM ; Daeun BAEK ; Nak-Hoon SON ; Kyeong Hwan SEO ; Eunyoung JUNG
Annals of Surgical Treatment and Research 2025;108(1):57-63
Purpose:
Transversus abdominis plane (TAP) block is a promising technique for postoperative pain control. In this study, we aimed to evaluate the efficacy of the TAP block in managing postoperative pain after laparoscopic totally extraperitoneal (TEP) inguinal hernia repair.
Methods:
In this retrospective study, medical records of patients who had received ultrasonography-guided TAP blocks after surgery from January 2019 to August 2023 were reviewed and compared with those of patients who had not received. Propensity score matching was controlled for age as a confounder. Postoperative pain levels were measured using the numeric rating scale (NRS).
Results:
After matching, 95 patients were included in each group. The TAP block group (2.7 vs. 4.0, P < 0.001) had significantly lower NRS scores immediately and early postoperative pain than the control group (1.9 vs. 2.5, P < 0.001). However, there was no significant difference between the 2 groups in terms of postoperative complications (P > 0.05).
Conclusion
TAP block is effective and safe for managing immediate and early postoperative pain in laparoscopic TEP inguinal hernia repair and does not increase the risk of complications.
9.Review and latest trends of dental ceramic restorative materials
Seon-Mi BYEON ; Kyeong-Seon KIM ; Jae-Woo SHIN ; Jung-Hwan LEE ; Jeong-Hui JI ; Min-Soo BAE ; Yong-Seok JANG ; Min-Ho LEE ; Tae-Sung BAE
Korean Journal of Dental Materials 2024;51(1):1-14
Prosthodontic treatment is being performed for morphology and functional restoration due to damage and loss of teeth. As the aesthetic demands of patients increase, interest in ceramic materials with shades and translucency similar to natural teeth has increased.Recently, the manufacturing and processing technology of ceramic materials has greatly improved, and the market for dental ceramic materials is growing rapidly. The purpose of this literature review and evaluation is to provide information on the classification and properties of dental ceramic materials with excellent aesthetics and fracture resistance. In this article, it is classified as follows: I) Dental porcelain; II) Sinterable all-ceramic; III) Glass-ceramic for casting; IV) Glass-infiltrated alumina ceramic; V) Glass-ceramic ingots for heat-pressing technique; Vl) Blocks for CAD/CAM; Vll) Ceramic for CAD/3D printing. Dental ceramic materials and their restoration manufacturing methods have evolved significantly over the past decade. As a result, the manufacturing method of restorations has progressed from the layered firing technique of powdered materials or heat-pressing technique to the cutting and processing of single and multi-layer blocks using CAD/CAM technology, leading to the introduction of CAD/3D printing technology. In this manuscript, we will review the types of ceramic materials used in the fabrication of dental restorations and their advantages and disadvantages.
10.Argutinic acid, A New Triterpenoid from the Fruits of Actinidia arguta
Se Hwan RYU ; Jong Hoon AHN ; Ayman TURK ; Seon Beom KIM ; Bang Yeon HWANG ; Mi Kyeong LEE
Natural Product Sciences 2024;30(3):208-211
Actinidia arguta, also called as kiwiberry or hardy kiwifruit, is one of the major varieties of kiwi plants. It is small in size and has no hairs on the surface, which making it easy to be consumed. In addition, it can be cultivated in Asia, due to its cold resistance. We have been interested in the beneficial effects of the fruits of A. arguta and investigated the constituents and biological activities. A new triterpenoid, argutinic acid, along with three triterpenoids and three megastigmines were isolated from the fruits of A. arguta. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, two triterpenes, argutinic acid (1) and usrolic acid (4) showed α-glucosidase inhibitory activities.

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