1.Outcomes of Deferring Percutaneous Coronary Intervention Without Physiologic Assessment for Intermediate Coronary Lesions
Jihoon KIM ; Seong-Hoon LIM ; Joo-Yong HAHN ; Jin-Ok JEONG ; Yong Hwan PARK ; Woo Jung CHUN ; Ju Hyeon OH ; Dae Kyoung CHO ; Yu Jeong CHOI ; Eul-Soon IM ; Kyung-Heon WON ; Sung Yun LEE ; Sang-Wook KIM ; Ki Hong CHOI ; Joo Myung LEE ; Taek Kyu PARK ; Jeong Hoon YANG ; Young Bin SONG ; Seung-Hyuk CHOI ; Hyeon-Cheol GWON
Korean Circulation Journal 2025;55(3):185-195
Background and Objectives:
Outcomes of deferring percutaneous coronary intervention (PCI) without invasive physiologic assessment for intermediate coronary lesions is uncertain.We sought to compare long-term outcomes between medical treatment and PCI of intermediate lesions without invasive physiologic assessment.
Methods:
A total of 899 patients with intermediate coronary lesions between 50% and 70% diameter-stenosis were randomized to the conservative group (n=449) or the aggressive group (n=450). For intermediate lesions, PCI was performed in the aggressive group, but was deferred in the conservative group. The primary endpoint was major adverse cardiac events (MACE, a composite of all-cause death, myocardial infarction [MI], or ischemia-driven any revascularization) at 3 years.
Results:
The number of treated lesions per patient was 0.8±0.9 in the conservative group and 1.7±0.9 in the aggressive group (p=0.001). At 3 years, the conservative group had a significantly higher incidence of MACE than the aggressive group (13.8% vs. 9.3%; hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.00–2.21; p=0.049), mainly driven by revascularization of target intermediate lesion (6.5% vs. 1.1%; HR, 5.69; 95% CI, 2.20–14.73;p<0.001). Between 1 and 3 years after the index procedure, compared to the aggressive group, the conservative group had significantly higher incidence of cardiac death or MI (3.2% vs.0.7%; HR, 4.34; 95% CI, 1.24–15.22; p=0.022) and ischemia-driven any revascularization.
Conclusions
For intermediate lesions, medical therapy alone, guided only by angiography, was associated with a higher risk of MACE at 3 years compared with performing PCI, mainly due to increased revascularization.
2.Outcomes of Deferring Percutaneous Coronary Intervention Without Physiologic Assessment for Intermediate Coronary Lesions
Jihoon KIM ; Seong-Hoon LIM ; Joo-Yong HAHN ; Jin-Ok JEONG ; Yong Hwan PARK ; Woo Jung CHUN ; Ju Hyeon OH ; Dae Kyoung CHO ; Yu Jeong CHOI ; Eul-Soon IM ; Kyung-Heon WON ; Sung Yun LEE ; Sang-Wook KIM ; Ki Hong CHOI ; Joo Myung LEE ; Taek Kyu PARK ; Jeong Hoon YANG ; Young Bin SONG ; Seung-Hyuk CHOI ; Hyeon-Cheol GWON
Korean Circulation Journal 2025;55(3):185-195
Background and Objectives:
Outcomes of deferring percutaneous coronary intervention (PCI) without invasive physiologic assessment for intermediate coronary lesions is uncertain.We sought to compare long-term outcomes between medical treatment and PCI of intermediate lesions without invasive physiologic assessment.
Methods:
A total of 899 patients with intermediate coronary lesions between 50% and 70% diameter-stenosis were randomized to the conservative group (n=449) or the aggressive group (n=450). For intermediate lesions, PCI was performed in the aggressive group, but was deferred in the conservative group. The primary endpoint was major adverse cardiac events (MACE, a composite of all-cause death, myocardial infarction [MI], or ischemia-driven any revascularization) at 3 years.
Results:
The number of treated lesions per patient was 0.8±0.9 in the conservative group and 1.7±0.9 in the aggressive group (p=0.001). At 3 years, the conservative group had a significantly higher incidence of MACE than the aggressive group (13.8% vs. 9.3%; hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.00–2.21; p=0.049), mainly driven by revascularization of target intermediate lesion (6.5% vs. 1.1%; HR, 5.69; 95% CI, 2.20–14.73;p<0.001). Between 1 and 3 years after the index procedure, compared to the aggressive group, the conservative group had significantly higher incidence of cardiac death or MI (3.2% vs.0.7%; HR, 4.34; 95% CI, 1.24–15.22; p=0.022) and ischemia-driven any revascularization.
Conclusions
For intermediate lesions, medical therapy alone, guided only by angiography, was associated with a higher risk of MACE at 3 years compared with performing PCI, mainly due to increased revascularization.
3.Outcomes of Deferring Percutaneous Coronary Intervention Without Physiologic Assessment for Intermediate Coronary Lesions
Jihoon KIM ; Seong-Hoon LIM ; Joo-Yong HAHN ; Jin-Ok JEONG ; Yong Hwan PARK ; Woo Jung CHUN ; Ju Hyeon OH ; Dae Kyoung CHO ; Yu Jeong CHOI ; Eul-Soon IM ; Kyung-Heon WON ; Sung Yun LEE ; Sang-Wook KIM ; Ki Hong CHOI ; Joo Myung LEE ; Taek Kyu PARK ; Jeong Hoon YANG ; Young Bin SONG ; Seung-Hyuk CHOI ; Hyeon-Cheol GWON
Korean Circulation Journal 2025;55(3):185-195
Background and Objectives:
Outcomes of deferring percutaneous coronary intervention (PCI) without invasive physiologic assessment for intermediate coronary lesions is uncertain.We sought to compare long-term outcomes between medical treatment and PCI of intermediate lesions without invasive physiologic assessment.
Methods:
A total of 899 patients with intermediate coronary lesions between 50% and 70% diameter-stenosis were randomized to the conservative group (n=449) or the aggressive group (n=450). For intermediate lesions, PCI was performed in the aggressive group, but was deferred in the conservative group. The primary endpoint was major adverse cardiac events (MACE, a composite of all-cause death, myocardial infarction [MI], or ischemia-driven any revascularization) at 3 years.
Results:
The number of treated lesions per patient was 0.8±0.9 in the conservative group and 1.7±0.9 in the aggressive group (p=0.001). At 3 years, the conservative group had a significantly higher incidence of MACE than the aggressive group (13.8% vs. 9.3%; hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.00–2.21; p=0.049), mainly driven by revascularization of target intermediate lesion (6.5% vs. 1.1%; HR, 5.69; 95% CI, 2.20–14.73;p<0.001). Between 1 and 3 years after the index procedure, compared to the aggressive group, the conservative group had significantly higher incidence of cardiac death or MI (3.2% vs.0.7%; HR, 4.34; 95% CI, 1.24–15.22; p=0.022) and ischemia-driven any revascularization.
Conclusions
For intermediate lesions, medical therapy alone, guided only by angiography, was associated with a higher risk of MACE at 3 years compared with performing PCI, mainly due to increased revascularization.
4.Outcomes of Deferring Percutaneous Coronary Intervention Without Physiologic Assessment for Intermediate Coronary Lesions
Jihoon KIM ; Seong-Hoon LIM ; Joo-Yong HAHN ; Jin-Ok JEONG ; Yong Hwan PARK ; Woo Jung CHUN ; Ju Hyeon OH ; Dae Kyoung CHO ; Yu Jeong CHOI ; Eul-Soon IM ; Kyung-Heon WON ; Sung Yun LEE ; Sang-Wook KIM ; Ki Hong CHOI ; Joo Myung LEE ; Taek Kyu PARK ; Jeong Hoon YANG ; Young Bin SONG ; Seung-Hyuk CHOI ; Hyeon-Cheol GWON
Korean Circulation Journal 2025;55(3):185-195
Background and Objectives:
Outcomes of deferring percutaneous coronary intervention (PCI) without invasive physiologic assessment for intermediate coronary lesions is uncertain.We sought to compare long-term outcomes between medical treatment and PCI of intermediate lesions without invasive physiologic assessment.
Methods:
A total of 899 patients with intermediate coronary lesions between 50% and 70% diameter-stenosis were randomized to the conservative group (n=449) or the aggressive group (n=450). For intermediate lesions, PCI was performed in the aggressive group, but was deferred in the conservative group. The primary endpoint was major adverse cardiac events (MACE, a composite of all-cause death, myocardial infarction [MI], or ischemia-driven any revascularization) at 3 years.
Results:
The number of treated lesions per patient was 0.8±0.9 in the conservative group and 1.7±0.9 in the aggressive group (p=0.001). At 3 years, the conservative group had a significantly higher incidence of MACE than the aggressive group (13.8% vs. 9.3%; hazard ratio [HR], 1.49; 95% confidence interval [CI], 1.00–2.21; p=0.049), mainly driven by revascularization of target intermediate lesion (6.5% vs. 1.1%; HR, 5.69; 95% CI, 2.20–14.73;p<0.001). Between 1 and 3 years after the index procedure, compared to the aggressive group, the conservative group had significantly higher incidence of cardiac death or MI (3.2% vs.0.7%; HR, 4.34; 95% CI, 1.24–15.22; p=0.022) and ischemia-driven any revascularization.
Conclusions
For intermediate lesions, medical therapy alone, guided only by angiography, was associated with a higher risk of MACE at 3 years compared with performing PCI, mainly due to increased revascularization.
5.Cross-Sectional Observation of the Factors for Long-Term Maintenance of Long-Acting Injectable Antipsychotics in Schizophrenia
Hyuk GWON ; Bo-Hyun YOON ; Kyungmin KIM ; Hangoeunbi KANG ; Hyunju YUN ; Yuran JEONG ; Ha-Ran JUNG ; Jye-Heon SONG ; Suhee PARK ; Young-Hwa SEA ; Jaegil JO
Mood and Emotion 2024;22(3):69-77
Background:
This study aimed to identify factors that influence the maintenance of long-acting injectable antipsychotics (LAI) for over a year in patients with schizophrenia.
Methods:
Seventy patients from Naju National Hospital were divided into two groups: those who maintained LAI for over a year (maintaining group, n=39) and those who discontinued (dropout group, n=31). Sociodemographic and clinical factors were compared using medical records and assessments, including the Birchwood Insight Scale (BIS), Drug Attitude Inventory-10 (DAI-10), and World Health Organization Quality of Life assessment instrument.
Results:
The number of rehospitalizations was significantly lower in the maintaining group (p=0.030). The highest previous Global Assessment of Functioning Scale score within a year of starting LAI was significantly higher in the maintaining group (p=0.002), with a higher number of individuals being employed in this group (p=0.029). The mean BIS (p=0.010) and DAI-10 (p=0.003) scores were higher in the maintaining group. Logistic regression analysis revealed that the DAI-10 (B=0.148, p=0.014) had a significant impact on maintaining LAI.
Conclusion
Our study suggests that a positive drug attitude is one of the key factors in maintaining LAI treatment, preventing relapses and supporting long-term stabilization in schizophrenia.
6.Cross-Sectional Observation of the Factors for Long-Term Maintenance of Long-Acting Injectable Antipsychotics in Schizophrenia
Hyuk GWON ; Bo-Hyun YOON ; Kyungmin KIM ; Hangoeunbi KANG ; Hyunju YUN ; Yuran JEONG ; Ha-Ran JUNG ; Jye-Heon SONG ; Suhee PARK ; Young-Hwa SEA ; Jaegil JO
Mood and Emotion 2024;22(3):69-77
Background:
This study aimed to identify factors that influence the maintenance of long-acting injectable antipsychotics (LAI) for over a year in patients with schizophrenia.
Methods:
Seventy patients from Naju National Hospital were divided into two groups: those who maintained LAI for over a year (maintaining group, n=39) and those who discontinued (dropout group, n=31). Sociodemographic and clinical factors were compared using medical records and assessments, including the Birchwood Insight Scale (BIS), Drug Attitude Inventory-10 (DAI-10), and World Health Organization Quality of Life assessment instrument.
Results:
The number of rehospitalizations was significantly lower in the maintaining group (p=0.030). The highest previous Global Assessment of Functioning Scale score within a year of starting LAI was significantly higher in the maintaining group (p=0.002), with a higher number of individuals being employed in this group (p=0.029). The mean BIS (p=0.010) and DAI-10 (p=0.003) scores were higher in the maintaining group. Logistic regression analysis revealed that the DAI-10 (B=0.148, p=0.014) had a significant impact on maintaining LAI.
Conclusion
Our study suggests that a positive drug attitude is one of the key factors in maintaining LAI treatment, preventing relapses and supporting long-term stabilization in schizophrenia.
7.Cross-Sectional Observation of the Factors for Long-Term Maintenance of Long-Acting Injectable Antipsychotics in Schizophrenia
Hyuk GWON ; Bo-Hyun YOON ; Kyungmin KIM ; Hangoeunbi KANG ; Hyunju YUN ; Yuran JEONG ; Ha-Ran JUNG ; Jye-Heon SONG ; Suhee PARK ; Young-Hwa SEA ; Jaegil JO
Mood and Emotion 2024;22(3):69-77
Background:
This study aimed to identify factors that influence the maintenance of long-acting injectable antipsychotics (LAI) for over a year in patients with schizophrenia.
Methods:
Seventy patients from Naju National Hospital were divided into two groups: those who maintained LAI for over a year (maintaining group, n=39) and those who discontinued (dropout group, n=31). Sociodemographic and clinical factors were compared using medical records and assessments, including the Birchwood Insight Scale (BIS), Drug Attitude Inventory-10 (DAI-10), and World Health Organization Quality of Life assessment instrument.
Results:
The number of rehospitalizations was significantly lower in the maintaining group (p=0.030). The highest previous Global Assessment of Functioning Scale score within a year of starting LAI was significantly higher in the maintaining group (p=0.002), with a higher number of individuals being employed in this group (p=0.029). The mean BIS (p=0.010) and DAI-10 (p=0.003) scores were higher in the maintaining group. Logistic regression analysis revealed that the DAI-10 (B=0.148, p=0.014) had a significant impact on maintaining LAI.
Conclusion
Our study suggests that a positive drug attitude is one of the key factors in maintaining LAI treatment, preventing relapses and supporting long-term stabilization in schizophrenia.
8.Cross-Sectional Observation of the Factors for Long-Term Maintenance of Long-Acting Injectable Antipsychotics in Schizophrenia
Hyuk GWON ; Bo-Hyun YOON ; Kyungmin KIM ; Hangoeunbi KANG ; Hyunju YUN ; Yuran JEONG ; Ha-Ran JUNG ; Jye-Heon SONG ; Suhee PARK ; Young-Hwa SEA ; Jaegil JO
Mood and Emotion 2024;22(3):69-77
Background:
This study aimed to identify factors that influence the maintenance of long-acting injectable antipsychotics (LAI) for over a year in patients with schizophrenia.
Methods:
Seventy patients from Naju National Hospital were divided into two groups: those who maintained LAI for over a year (maintaining group, n=39) and those who discontinued (dropout group, n=31). Sociodemographic and clinical factors were compared using medical records and assessments, including the Birchwood Insight Scale (BIS), Drug Attitude Inventory-10 (DAI-10), and World Health Organization Quality of Life assessment instrument.
Results:
The number of rehospitalizations was significantly lower in the maintaining group (p=0.030). The highest previous Global Assessment of Functioning Scale score within a year of starting LAI was significantly higher in the maintaining group (p=0.002), with a higher number of individuals being employed in this group (p=0.029). The mean BIS (p=0.010) and DAI-10 (p=0.003) scores were higher in the maintaining group. Logistic regression analysis revealed that the DAI-10 (B=0.148, p=0.014) had a significant impact on maintaining LAI.
Conclusion
Our study suggests that a positive drug attitude is one of the key factors in maintaining LAI treatment, preventing relapses and supporting long-term stabilization in schizophrenia.
9.Current evidence for prognostic benefit of intravascular imaging-guided percutaneous coronary intervention in chronic total occlusion intervention
David HONG ; Sung Eun KIM ; Seung Hun LEE ; Seung-Jae LEE ; Jong-Young LEE ; Sang Min KIM ; Sang Yeub LEE ; Woochan KWON ; Ki Hong CHOI ; Taek Kyu PARK ; Jeong Hoon YANG ; Young Bin SONG ; Seung-Hyuk CHOI ; Hyeon-Cheol GWON ; Joo-Yong HAHN ; Joo Myung LEE ;
The Korean Journal of Internal Medicine 2024;39(5):702-716
Although percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) has been increasing in recent years, CTO PCI is still one of the most challenging procedures with relatively higher rates of procedural complications and adverse clinical events after PCI. Due to the innate limitations of invasive coronary angiography, intravascular imaging (IVI) has been used as an adjunctive tool to complement PCI, especially in complex coronary artery disease. Considering the complexity of CTO lesions, the role of IVI is particularly important in CTO intervention. IVI has been a useful adjunctive tool in every step of CTO PCI including assisted wire crossing, confirmation of wire location within CTO segment, and stent optimization. The meticulous use of IVI has been one of the greatest contributors to recent progress of CTO PCI. Nevertheless, studies evaluating the role of IVI during CTO PCI are limited. The current review provides a comprehensive overview of the mechanistic advantages of IVI in CTO PCI, summarizes previous studies and trials, and presents future perspective of IVI in CTO PCI.
10.Cross-Sectional Observation of the Factors for Long-Term Maintenance of Long-Acting Injectable Antipsychotics in Schizophrenia
Hyuk GWON ; Bo-Hyun YOON ; Kyungmin KIM ; Hangoeunbi KANG ; Hyunju YUN ; Yuran JEONG ; Ha-Ran JUNG ; Jye-Heon SONG ; Suhee PARK ; Young-Hwa SEA ; Jaegil JO
Mood and Emotion 2024;22(3):69-77
Background:
This study aimed to identify factors that influence the maintenance of long-acting injectable antipsychotics (LAI) for over a year in patients with schizophrenia.
Methods:
Seventy patients from Naju National Hospital were divided into two groups: those who maintained LAI for over a year (maintaining group, n=39) and those who discontinued (dropout group, n=31). Sociodemographic and clinical factors were compared using medical records and assessments, including the Birchwood Insight Scale (BIS), Drug Attitude Inventory-10 (DAI-10), and World Health Organization Quality of Life assessment instrument.
Results:
The number of rehospitalizations was significantly lower in the maintaining group (p=0.030). The highest previous Global Assessment of Functioning Scale score within a year of starting LAI was significantly higher in the maintaining group (p=0.002), with a higher number of individuals being employed in this group (p=0.029). The mean BIS (p=0.010) and DAI-10 (p=0.003) scores were higher in the maintaining group. Logistic regression analysis revealed that the DAI-10 (B=0.148, p=0.014) had a significant impact on maintaining LAI.
Conclusion
Our study suggests that a positive drug attitude is one of the key factors in maintaining LAI treatment, preventing relapses and supporting long-term stabilization in schizophrenia.

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