1.Potential Unnecessity of Bismuth in Standard Triple Therapy for Clarithromycin-Susceptible Helicobacter pylori Infection
Seon Woo OH ; Keun Sol MIN ; Hyung Geun KIM ; Sunmi LEE ; Chul-Hyun LIM ; Jung-Hwan OH
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):48-53
Objectives:
The standard first-line treatment for Helicobacter pylori infection typically involves proton pump inhibitors, amoxicillin, and clarithromycin (PAC), yet the eradication success rates are not entirely satisfactory. Recognizing bismuth’s antibacterial properties and its potential to enhance antibiotic efficacy, this study compared the eradication success rates of a 7-day course of PAC with bismuth (PACB) versus PAC alone in patients with clarithromycin-susceptible H. pylori infections.
Methods:
We conducted a retrospective review at Eunpyeong St. Mary’s Hospital involving 499 patients with confirmed clarithromycin-susceptible H. pylori infection. These patients were treated either with PACB or PAC for 7 days. Clarithromycin resistance-associated point mutations were evaluated using reverse transcriptase polymerase chain reaction. Successful eradication was confirmed by a negative 13C-urea breath test.
Results:
Of the patients, 261 received PACB therapy, and 238 received PAC therapy. The intention-to-treat analysis showed eradication success rates of 82.8% (216/261) for PACB and 89.1% (212/238) for PAC (p=0.093). The per-protocol analysis revealed eradication rates of 85.3% (215/252) for PACB and 90.5% (210/232) for PAC (p=0.081). The incidence of adverse effects was similar between the two groups, with 41.3% (104/252) in the PACB group and 34.1% (79/232) in the PAC group (p=0.102).
Conclusions
Adding bismuth to the standard 7-day PAC regimen did not significantly increase eradication rates in patients with clarithromycin-susceptible H. pylori infections compared to PAC alone.
2.Potential Unnecessity of Bismuth in Standard Triple Therapy for Clarithromycin-Susceptible Helicobacter pylori Infection
Seon Woo OH ; Keun Sol MIN ; Hyung Geun KIM ; Sunmi LEE ; Chul-Hyun LIM ; Jung-Hwan OH
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):48-53
Objectives:
The standard first-line treatment for Helicobacter pylori infection typically involves proton pump inhibitors, amoxicillin, and clarithromycin (PAC), yet the eradication success rates are not entirely satisfactory. Recognizing bismuth’s antibacterial properties and its potential to enhance antibiotic efficacy, this study compared the eradication success rates of a 7-day course of PAC with bismuth (PACB) versus PAC alone in patients with clarithromycin-susceptible H. pylori infections.
Methods:
We conducted a retrospective review at Eunpyeong St. Mary’s Hospital involving 499 patients with confirmed clarithromycin-susceptible H. pylori infection. These patients were treated either with PACB or PAC for 7 days. Clarithromycin resistance-associated point mutations were evaluated using reverse transcriptase polymerase chain reaction. Successful eradication was confirmed by a negative 13C-urea breath test.
Results:
Of the patients, 261 received PACB therapy, and 238 received PAC therapy. The intention-to-treat analysis showed eradication success rates of 82.8% (216/261) for PACB and 89.1% (212/238) for PAC (p=0.093). The per-protocol analysis revealed eradication rates of 85.3% (215/252) for PACB and 90.5% (210/232) for PAC (p=0.081). The incidence of adverse effects was similar between the two groups, with 41.3% (104/252) in the PACB group and 34.1% (79/232) in the PAC group (p=0.102).
Conclusions
Adding bismuth to the standard 7-day PAC regimen did not significantly increase eradication rates in patients with clarithromycin-susceptible H. pylori infections compared to PAC alone.
3.Potential Unnecessity of Bismuth in Standard Triple Therapy for Clarithromycin-Susceptible Helicobacter pylori Infection
Seon Woo OH ; Keun Sol MIN ; Hyung Geun KIM ; Sunmi LEE ; Chul-Hyun LIM ; Jung-Hwan OH
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):48-53
Objectives:
The standard first-line treatment for Helicobacter pylori infection typically involves proton pump inhibitors, amoxicillin, and clarithromycin (PAC), yet the eradication success rates are not entirely satisfactory. Recognizing bismuth’s antibacterial properties and its potential to enhance antibiotic efficacy, this study compared the eradication success rates of a 7-day course of PAC with bismuth (PACB) versus PAC alone in patients with clarithromycin-susceptible H. pylori infections.
Methods:
We conducted a retrospective review at Eunpyeong St. Mary’s Hospital involving 499 patients with confirmed clarithromycin-susceptible H. pylori infection. These patients were treated either with PACB or PAC for 7 days. Clarithromycin resistance-associated point mutations were evaluated using reverse transcriptase polymerase chain reaction. Successful eradication was confirmed by a negative 13C-urea breath test.
Results:
Of the patients, 261 received PACB therapy, and 238 received PAC therapy. The intention-to-treat analysis showed eradication success rates of 82.8% (216/261) for PACB and 89.1% (212/238) for PAC (p=0.093). The per-protocol analysis revealed eradication rates of 85.3% (215/252) for PACB and 90.5% (210/232) for PAC (p=0.081). The incidence of adverse effects was similar between the two groups, with 41.3% (104/252) in the PACB group and 34.1% (79/232) in the PAC group (p=0.102).
Conclusions
Adding bismuth to the standard 7-day PAC regimen did not significantly increase eradication rates in patients with clarithromycin-susceptible H. pylori infections compared to PAC alone.
4.Potential Unnecessity of Bismuth in Standard Triple Therapy for Clarithromycin-Susceptible Helicobacter pylori Infection
Seon Woo OH ; Keun Sol MIN ; Hyung Geun KIM ; Sunmi LEE ; Chul-Hyun LIM ; Jung-Hwan OH
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):48-53
Objectives:
The standard first-line treatment for Helicobacter pylori infection typically involves proton pump inhibitors, amoxicillin, and clarithromycin (PAC), yet the eradication success rates are not entirely satisfactory. Recognizing bismuth’s antibacterial properties and its potential to enhance antibiotic efficacy, this study compared the eradication success rates of a 7-day course of PAC with bismuth (PACB) versus PAC alone in patients with clarithromycin-susceptible H. pylori infections.
Methods:
We conducted a retrospective review at Eunpyeong St. Mary’s Hospital involving 499 patients with confirmed clarithromycin-susceptible H. pylori infection. These patients were treated either with PACB or PAC for 7 days. Clarithromycin resistance-associated point mutations were evaluated using reverse transcriptase polymerase chain reaction. Successful eradication was confirmed by a negative 13C-urea breath test.
Results:
Of the patients, 261 received PACB therapy, and 238 received PAC therapy. The intention-to-treat analysis showed eradication success rates of 82.8% (216/261) for PACB and 89.1% (212/238) for PAC (p=0.093). The per-protocol analysis revealed eradication rates of 85.3% (215/252) for PACB and 90.5% (210/232) for PAC (p=0.081). The incidence of adverse effects was similar between the two groups, with 41.3% (104/252) in the PACB group and 34.1% (79/232) in the PAC group (p=0.102).
Conclusions
Adding bismuth to the standard 7-day PAC regimen did not significantly increase eradication rates in patients with clarithromycin-susceptible H. pylori infections compared to PAC alone.
5.Potential Unnecessity of Bismuth in Standard Triple Therapy for Clarithromycin-Susceptible Helicobacter pylori Infection
Seon Woo OH ; Keun Sol MIN ; Hyung Geun KIM ; Sunmi LEE ; Chul-Hyun LIM ; Jung-Hwan OH
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):48-53
Objectives:
The standard first-line treatment for Helicobacter pylori infection typically involves proton pump inhibitors, amoxicillin, and clarithromycin (PAC), yet the eradication success rates are not entirely satisfactory. Recognizing bismuth’s antibacterial properties and its potential to enhance antibiotic efficacy, this study compared the eradication success rates of a 7-day course of PAC with bismuth (PACB) versus PAC alone in patients with clarithromycin-susceptible H. pylori infections.
Methods:
We conducted a retrospective review at Eunpyeong St. Mary’s Hospital involving 499 patients with confirmed clarithromycin-susceptible H. pylori infection. These patients were treated either with PACB or PAC for 7 days. Clarithromycin resistance-associated point mutations were evaluated using reverse transcriptase polymerase chain reaction. Successful eradication was confirmed by a negative 13C-urea breath test.
Results:
Of the patients, 261 received PACB therapy, and 238 received PAC therapy. The intention-to-treat analysis showed eradication success rates of 82.8% (216/261) for PACB and 89.1% (212/238) for PAC (p=0.093). The per-protocol analysis revealed eradication rates of 85.3% (215/252) for PACB and 90.5% (210/232) for PAC (p=0.081). The incidence of adverse effects was similar between the two groups, with 41.3% (104/252) in the PACB group and 34.1% (79/232) in the PAC group (p=0.102).
Conclusions
Adding bismuth to the standard 7-day PAC regimen did not significantly increase eradication rates in patients with clarithromycin-susceptible H. pylori infections compared to PAC alone.
6.Understanding Myofascial Pain and Trigger Point
Jang-Keun CHO ; You-Mee LEE ; Hyun-Dae LIM
Journal of Oral Medicine and Pain 2025;50(4):109-116
Myofascial pain syndrome (MPS) is a localized musculoskeletal pain disorder characterized by the presence of myofascial trigger points (TrPs), which are hyperirritable foci within taut muscle bands. These TrPs produce local tenderness and referred pain that may appear both near and distant from the source. Pathophysiological explanations for MPS have evolved over time. Simons’ integrated hypothesis remains influential, proposing that excessive acetylcholine release at the neuromuscular junction increases muscle tension, leading to local hypoxia, adenosine triphosphate depletion, and the release of pain mediators. This cascade creates a self-perpetuating cycle of nociceptor activation and persistent sarcomere contraction. In parallel, referred pain—a hallmark of MPS— has been explained by the convergence of nociceptive signals on shared spinal neurons, which may mislead the brain regarding the true origin of pain. Clinically, MPS diagnosis remains rooted in palpation. Continued research is refining both the mechanistic understanding of MPS and the diagnostic tools available for its evaluation. In this article, we present an extensive analysis of MPS by examining the nature and function of trigger points, the diagnostic and classification challenges, and the diverse treatment approaches available.
7.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.
8.Atrial fibrillation fact sheet in Korea 2024(part 1): epidemiology of atrial fibrillation in Korea
So‑Ryoung LEE ; Daehoon KIM ; Sung Ho LEE ; Woo‑Hyun LIM ; Kwang Jin CHUN ; Won‑Seok CHOE ; Hyo‑Jeong AHN ; Kyung‑Yeon LEE ; JungMin CHOI ; Bong‑Seong KIM ; Kyung‑Do HAN ; Eue‑Keun CHOI
International Journal of Arrhythmia 2024;25(3):13-
Background and objectives:
This study aimed to analyze and present updated trends in atrial fibrillation (AF) epidemiology within the Korean population, providing a foundation for planning and implementing appropriate management and treatment strategies for patients with AF.
Patients and methods:
We used the Korean National Health Insurance Service database to evaluate the prevalence, incidence, comorbidities, and clinical adverse outcomes of patients with AF in Korea between 2013 and 2022.
Results:
AF prevalence in Korean adults aged ≥ 20 years doubled (1.1 to 2.2%) between 2013 and 2022, with significant increases observed across various sex and age groups. Similarly, the number of newly diagnosed patients with AF per year increased steadily, with the incidence rising from 184 to 275 per 100,000 person-years, particularly among older populations. Over this period, the mean age of patients with AF increased from 67.7 to 70.3 years, and comorbidities prevalence and CHA2DS2-VASc score rose significantly, indicating a higher stroke risk. Compared with patients without AF, AF was associated with an increased risk of mortality (hazard ratio [HR]: 1.78), ischemic stroke (HR: 2.39), major bleeding (HR: 2.10), myocardial infarction (HR: 1.44), and heart failure admission (HR: 2.42).
Conclusion
AF prevalence and incidence have steadily increased between 2013 and 2022, with a more pronounced increase in older patients. Patients with AF are increasingly becoming a high-risk population and are at increased risk of clinical adverse outcomes compared to non-AF patients. Therefore, a sustained national effort to improve AF awareness and comprehensive care quality for patients with AF is required.
9.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.
10.Therapeutic effects of surgical debulking of metastatic lymph nodes in cervical cancer IIICr: a trial protocol for a phase III, multicenter, randomized controlled study (KGOG1047/DEBULK trial)
Bo Seong YUN ; Kwang-Beom LEE ; Keun Ho LEE ; Ha Kyun CHANG ; Joo-Young KIM ; Myong Cheol LIM ; Chel Hun CHOI ; Hanbyoul CHO ; Dae-Yeon KIM ; Yun Hwan KIM ; Joong Sub CHOI ; Chae Hyeong LEE ; Jae-Weon KIM ; Sang Wun KIM ; Yong Bae KIM ; Chi-Heum CHO ; Dae Gy HONG ; Yong Jung SONG ; Seob JEON ; Min Kyu KIM ; Dae Hoon JEONG ; Hyun PARK ; Seok Mo KIM ; Sang-Il PARK ; Jae-Yun SONG ; Asima MUKHOPADHYAY ; Dang Huy Quoc THINH ; Nirmala Chandralega KAMPAN ; Grace J. LEE ; Jae-Hoon KIM ; Keun-Yong EOM ; Ju-Won ROH
Journal of Gynecologic Oncology 2024;35(5):e57-
Background:
Bulky or multiple lymph node (LN) metastases are associated with poor prognosis in cervical cancer, and the size or number of LN metastases is not yet reflected in the staging system and therapeutic strategy. Although the therapeutic effects of surgical resection of bulky LNs before standard treatment have been reported in several retrospective studies, wellplanned randomized clinical studies are lacking. Therefore, the aim of the Korean Gynecologic Oncology Group (KGOG) 1047/DEBULK trial is to investigate whether the debulking surgery of bulky or multiple LNs prior to concurrent chemoradiation therapy (CCRT) improves the survival rate of patients with cervical cancer IIICr diagnosed by imaging tests.
Methods
The KGOG 1047/DEBULK trial is a phase III, multicenter, randomized clinical trial involving patients with bulky or multiple LN metastases in cervical cancer IIICr. This study will include patients with a short-axis diameter of a pelvic or para-aortic LN ≥2 cm or ≥3 LNs with a short-axis diameter ≥1 cm and for whom CCRT is planned. The treatment arms will be randomly allocated in a 1:1 ratio to either receive CCRT (control arm) or undergo surgical debulking of bulky or multiple LNs before CCRT (experimental arm). CCRT consists of extended-field external beam radiotherapy/pelvic radiotherapy, brachytherapy and LN boost, and weekly chemotherapy with cisplatin (40 mg/m 2 ), 4–6 times administered intravenously.The primary endpoint will be 3-year progression-free survival rate. The secondary endpoints will be 3-year overall survival rate, treatment-related complications, and accuracy of radiological diagnosis of bulky or multiple LNs.

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