1.Salvage Radiotherapy for Loco-regional Recurrence of Esophageal Cancer Following Surgery
Won Kyung CHO ; Jae Myoung NOH ; Dongryul OH ; Yong Chan AHN ; Jong-Mu SUN ; Hong Kwan KIM ; Young Mog SHIM
Cancer Research and Treatment 2025;57(1):165-173
Purpose:
There is few evidence regarding the optimal salvage treatment options for loco-reginal recurrence of esophageal cancer. This study aimed to evaluate the clinical outcomes of salvage radiotherapy (RT) in patients with loco-regional recurrence (LRR) after surgery for esophageal cancer.
Materials and Methods:
We retrospectively reviewed 147 esophageal cancer patients who received salvage RT for loco-regional recurrence between 1996 and December 2019. A total dose of 60 Gy in 20 fractions was used for RT alone and 60-70 Gy in 30-35 fractions for concurrent chemoradiotherapy (CCRT).
Results:
The patients’ median age was 65 years (range, 41 to 86 years). The median disease-free interval was 13.5 months (1.0 to 97.4 months). After a median 18.8 months follow-up, the 2-year overall survival (OS) and progression-free survival (PFS) rates were 38.1% and 25.9%, respectively. The median OS and PFS were 18.8 and 8.4 months, respectively. The CCRT could not improve OS compared to RT (p=0.336), but there was a trend of better PFS in the CCRT group. Regarding toxicities, the rate of grade 3 or higher toxicity was 10.9% occurring in 16 patients, and it was higher in patients who received CCRT than in the RT alone group (19.6% vs. 6.3%, p=0.023).
Conclusion
Salvage RT alone as well as CCRT could be effective in patients with locoregionally recurrent esophageal cancer.
2.Salvage Radiotherapy for Loco-regional Recurrence of Esophageal Cancer Following Surgery
Won Kyung CHO ; Jae Myoung NOH ; Dongryul OH ; Yong Chan AHN ; Jong-Mu SUN ; Hong Kwan KIM ; Young Mog SHIM
Cancer Research and Treatment 2025;57(1):165-173
Purpose:
There is few evidence regarding the optimal salvage treatment options for loco-reginal recurrence of esophageal cancer. This study aimed to evaluate the clinical outcomes of salvage radiotherapy (RT) in patients with loco-regional recurrence (LRR) after surgery for esophageal cancer.
Materials and Methods:
We retrospectively reviewed 147 esophageal cancer patients who received salvage RT for loco-regional recurrence between 1996 and December 2019. A total dose of 60 Gy in 20 fractions was used for RT alone and 60-70 Gy in 30-35 fractions for concurrent chemoradiotherapy (CCRT).
Results:
The patients’ median age was 65 years (range, 41 to 86 years). The median disease-free interval was 13.5 months (1.0 to 97.4 months). After a median 18.8 months follow-up, the 2-year overall survival (OS) and progression-free survival (PFS) rates were 38.1% and 25.9%, respectively. The median OS and PFS were 18.8 and 8.4 months, respectively. The CCRT could not improve OS compared to RT (p=0.336), but there was a trend of better PFS in the CCRT group. Regarding toxicities, the rate of grade 3 or higher toxicity was 10.9% occurring in 16 patients, and it was higher in patients who received CCRT than in the RT alone group (19.6% vs. 6.3%, p=0.023).
Conclusion
Salvage RT alone as well as CCRT could be effective in patients with locoregionally recurrent esophageal cancer.
3.Salvage Radiotherapy for Loco-regional Recurrence of Esophageal Cancer Following Surgery
Won Kyung CHO ; Jae Myoung NOH ; Dongryul OH ; Yong Chan AHN ; Jong-Mu SUN ; Hong Kwan KIM ; Young Mog SHIM
Cancer Research and Treatment 2025;57(1):165-173
Purpose:
There is few evidence regarding the optimal salvage treatment options for loco-reginal recurrence of esophageal cancer. This study aimed to evaluate the clinical outcomes of salvage radiotherapy (RT) in patients with loco-regional recurrence (LRR) after surgery for esophageal cancer.
Materials and Methods:
We retrospectively reviewed 147 esophageal cancer patients who received salvage RT for loco-regional recurrence between 1996 and December 2019. A total dose of 60 Gy in 20 fractions was used for RT alone and 60-70 Gy in 30-35 fractions for concurrent chemoradiotherapy (CCRT).
Results:
The patients’ median age was 65 years (range, 41 to 86 years). The median disease-free interval was 13.5 months (1.0 to 97.4 months). After a median 18.8 months follow-up, the 2-year overall survival (OS) and progression-free survival (PFS) rates were 38.1% and 25.9%, respectively. The median OS and PFS were 18.8 and 8.4 months, respectively. The CCRT could not improve OS compared to RT (p=0.336), but there was a trend of better PFS in the CCRT group. Regarding toxicities, the rate of grade 3 or higher toxicity was 10.9% occurring in 16 patients, and it was higher in patients who received CCRT than in the RT alone group (19.6% vs. 6.3%, p=0.023).
Conclusion
Salvage RT alone as well as CCRT could be effective in patients with locoregionally recurrent esophageal cancer.
4.Clinical Outcomes After Drug-Coated Balloon Treatment in Popliteal Artery Disease: K-POP Registry 12-Month Results
Jong-Il PARK ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol-Woong YU ; Jong Kwan PARK ; Sang-Ho PARK ; Jae-Hwan LEE ; Su-Hong KIM ; Yong-Joon LEE ; Sung-Jin HONG ; Jung-Sun KIM ; Byeong-Keuk KIM ; Myeong-Ki HONG ; Donghoon CHOI
Korean Circulation Journal 2024;54(8):454-465
Background and Objectives:
The popliteal artery is generally regarded as a “no-stent zone.”Limited data are available on the outcomes of drug-coated balloons (DCBs) for popliteal artery disease. This study aimed to evaluate the 12-month clinical outcomes among patients who received DCB treatment for atherosclerotic popliteal artery disease.
Methods:
This prospective, multicenter registry study enrolled 100 patients from 7 Korean endovascular centers who underwent endovascular therapy using IN.PACT DCB (Medtronic) for symptomatic atherosclerotic popliteal artery disease. The primary endpoint was 12-month clinical primary patency and the secondary endpoint was clinically driven target lesion revascularization (TLR)–free rate.
Results:
The mean age of the study cohort was 65.7±10.8 years, and 77% of enrolled patients were men. The mean lesion length was 93.7±53.7 mm, and total occlusions were present in 45% of patients. Technical success was achieved in all patients. Combined atherectomy was performed in 17% and provisional stenting was required in 11%. Out of the enrolled patients, 91 patients completed the 12-month follow-up. Clinical primary patency and TLR-free survival rates at 12 months were 76.0% and 87.2%, respectively. A multivariate Cox regression analysis identified female and longer lesion length as the significant independent predictors of loss of patency.
Conclusions
DCB treatment yielded favorable 12-month clinical primary patency and TLRfree survival outcomes in patients with popliteal artery disease.
5.Korean Multicenter Registry of ELUVIA Stent for Femoropopliteal Artery Disease: K-ELUVIA Registry
Joongmin KIM ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol Ung CHOI ; Pil-Ki MIN ; Jong Kwan PARK ; Ji-Yong JANG ; Young Jin YOUN ; Tae-Soo KANG ; Chang-Hwan YOON ; Donghoon CHOI
Korean Circulation Journal 2024;54(9):565-576
Background and Objectives:
The K-ELUVIA study aimed to investigate the clinical effectiveness and safety of Eluvia™, a polymer-coated, paclitaxel-eluting stent, for femoropopliteal artery disease using data from a prospective Korean multicenter registry.
Methods:
A total of 105 patients with femoropopliteal artery disease who received endovascular treatment (EVT) with Eluvia™ stents at 7 Korean sites were enrolled in a prospective cohort and followed for 2 years. The primary endpoint was the 2-year clinical patency. The secondary endpoint was 2-year freedom from clinically driven target lesion revascularization (TLR).
Results:
Mean patient age was 68.2±10.4 years, and most patients (82.7%) were male. Mean lesion length was 168.3±117.6 mm. Chronic total occlusion was found in 57.7% of patients.Trans-Atlantic Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II) type C or D lesions were present in 46.1% of patients. Procedural success was achieved in 99.0% of patients. The clinical patency rate was 84.4% at 1 year after EVT and 76.3% at 2 years post-EVT. The freedom from TLR rate was 89.1% at 1 year after EVT and 79.1% at 2 years post-EVT. Chronic total occlusion (hazard ratio [HR], 3.53; 95% confidence interval [CI], 1.08–11.67; p=0.039) and smaller mean stent diameter (HR, 0.40; 95% CI, 0.16– 0.98; p=0.044) were identified as independent predictors of loss of clinical patency at 2 years.
Conclusions
The K-ELUVIA study demonstrated favorable 2-year clinical effectiveness and safety outcomes of Eluvia stent for femoropopliteal artery lesions in real-world practice.
6.Clinical Outcomes After Drug-Coated Balloon Treatment in Popliteal Artery Disease: K-POP Registry 12-Month Results
Jong-Il PARK ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol-Woong YU ; Jong Kwan PARK ; Sang-Ho PARK ; Jae-Hwan LEE ; Su-Hong KIM ; Yong-Joon LEE ; Sung-Jin HONG ; Jung-Sun KIM ; Byeong-Keuk KIM ; Myeong-Ki HONG ; Donghoon CHOI
Korean Circulation Journal 2024;54(8):454-465
Background and Objectives:
The popliteal artery is generally regarded as a “no-stent zone.”Limited data are available on the outcomes of drug-coated balloons (DCBs) for popliteal artery disease. This study aimed to evaluate the 12-month clinical outcomes among patients who received DCB treatment for atherosclerotic popliteal artery disease.
Methods:
This prospective, multicenter registry study enrolled 100 patients from 7 Korean endovascular centers who underwent endovascular therapy using IN.PACT DCB (Medtronic) for symptomatic atherosclerotic popliteal artery disease. The primary endpoint was 12-month clinical primary patency and the secondary endpoint was clinically driven target lesion revascularization (TLR)–free rate.
Results:
The mean age of the study cohort was 65.7±10.8 years, and 77% of enrolled patients were men. The mean lesion length was 93.7±53.7 mm, and total occlusions were present in 45% of patients. Technical success was achieved in all patients. Combined atherectomy was performed in 17% and provisional stenting was required in 11%. Out of the enrolled patients, 91 patients completed the 12-month follow-up. Clinical primary patency and TLR-free survival rates at 12 months were 76.0% and 87.2%, respectively. A multivariate Cox regression analysis identified female and longer lesion length as the significant independent predictors of loss of patency.
Conclusions
DCB treatment yielded favorable 12-month clinical primary patency and TLRfree survival outcomes in patients with popliteal artery disease.
7.Korean Multicenter Registry of ELUVIA Stent for Femoropopliteal Artery Disease: K-ELUVIA Registry
Joongmin KIM ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol Ung CHOI ; Pil-Ki MIN ; Jong Kwan PARK ; Ji-Yong JANG ; Young Jin YOUN ; Tae-Soo KANG ; Chang-Hwan YOON ; Donghoon CHOI
Korean Circulation Journal 2024;54(9):565-576
Background and Objectives:
The K-ELUVIA study aimed to investigate the clinical effectiveness and safety of Eluvia™, a polymer-coated, paclitaxel-eluting stent, for femoropopliteal artery disease using data from a prospective Korean multicenter registry.
Methods:
A total of 105 patients with femoropopliteal artery disease who received endovascular treatment (EVT) with Eluvia™ stents at 7 Korean sites were enrolled in a prospective cohort and followed for 2 years. The primary endpoint was the 2-year clinical patency. The secondary endpoint was 2-year freedom from clinically driven target lesion revascularization (TLR).
Results:
Mean patient age was 68.2±10.4 years, and most patients (82.7%) were male. Mean lesion length was 168.3±117.6 mm. Chronic total occlusion was found in 57.7% of patients.Trans-Atlantic Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II) type C or D lesions were present in 46.1% of patients. Procedural success was achieved in 99.0% of patients. The clinical patency rate was 84.4% at 1 year after EVT and 76.3% at 2 years post-EVT. The freedom from TLR rate was 89.1% at 1 year after EVT and 79.1% at 2 years post-EVT. Chronic total occlusion (hazard ratio [HR], 3.53; 95% confidence interval [CI], 1.08–11.67; p=0.039) and smaller mean stent diameter (HR, 0.40; 95% CI, 0.16– 0.98; p=0.044) were identified as independent predictors of loss of clinical patency at 2 years.
Conclusions
The K-ELUVIA study demonstrated favorable 2-year clinical effectiveness and safety outcomes of Eluvia stent for femoropopliteal artery lesions in real-world practice.
8.Clinical Outcomes After Drug-Coated Balloon Treatment in Popliteal Artery Disease: K-POP Registry 12-Month Results
Jong-Il PARK ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol-Woong YU ; Jong Kwan PARK ; Sang-Ho PARK ; Jae-Hwan LEE ; Su-Hong KIM ; Yong-Joon LEE ; Sung-Jin HONG ; Jung-Sun KIM ; Byeong-Keuk KIM ; Myeong-Ki HONG ; Donghoon CHOI
Korean Circulation Journal 2024;54(8):454-465
Background and Objectives:
The popliteal artery is generally regarded as a “no-stent zone.”Limited data are available on the outcomes of drug-coated balloons (DCBs) for popliteal artery disease. This study aimed to evaluate the 12-month clinical outcomes among patients who received DCB treatment for atherosclerotic popliteal artery disease.
Methods:
This prospective, multicenter registry study enrolled 100 patients from 7 Korean endovascular centers who underwent endovascular therapy using IN.PACT DCB (Medtronic) for symptomatic atherosclerotic popliteal artery disease. The primary endpoint was 12-month clinical primary patency and the secondary endpoint was clinically driven target lesion revascularization (TLR)–free rate.
Results:
The mean age of the study cohort was 65.7±10.8 years, and 77% of enrolled patients were men. The mean lesion length was 93.7±53.7 mm, and total occlusions were present in 45% of patients. Technical success was achieved in all patients. Combined atherectomy was performed in 17% and provisional stenting was required in 11%. Out of the enrolled patients, 91 patients completed the 12-month follow-up. Clinical primary patency and TLR-free survival rates at 12 months were 76.0% and 87.2%, respectively. A multivariate Cox regression analysis identified female and longer lesion length as the significant independent predictors of loss of patency.
Conclusions
DCB treatment yielded favorable 12-month clinical primary patency and TLRfree survival outcomes in patients with popliteal artery disease.
9.Korean Multicenter Registry of ELUVIA Stent for Femoropopliteal Artery Disease: K-ELUVIA Registry
Joongmin KIM ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol Ung CHOI ; Pil-Ki MIN ; Jong Kwan PARK ; Ji-Yong JANG ; Young Jin YOUN ; Tae-Soo KANG ; Chang-Hwan YOON ; Donghoon CHOI
Korean Circulation Journal 2024;54(9):565-576
Background and Objectives:
The K-ELUVIA study aimed to investigate the clinical effectiveness and safety of Eluvia™, a polymer-coated, paclitaxel-eluting stent, for femoropopliteal artery disease using data from a prospective Korean multicenter registry.
Methods:
A total of 105 patients with femoropopliteal artery disease who received endovascular treatment (EVT) with Eluvia™ stents at 7 Korean sites were enrolled in a prospective cohort and followed for 2 years. The primary endpoint was the 2-year clinical patency. The secondary endpoint was 2-year freedom from clinically driven target lesion revascularization (TLR).
Results:
Mean patient age was 68.2±10.4 years, and most patients (82.7%) were male. Mean lesion length was 168.3±117.6 mm. Chronic total occlusion was found in 57.7% of patients.Trans-Atlantic Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II) type C or D lesions were present in 46.1% of patients. Procedural success was achieved in 99.0% of patients. The clinical patency rate was 84.4% at 1 year after EVT and 76.3% at 2 years post-EVT. The freedom from TLR rate was 89.1% at 1 year after EVT and 79.1% at 2 years post-EVT. Chronic total occlusion (hazard ratio [HR], 3.53; 95% confidence interval [CI], 1.08–11.67; p=0.039) and smaller mean stent diameter (HR, 0.40; 95% CI, 0.16– 0.98; p=0.044) were identified as independent predictors of loss of clinical patency at 2 years.
Conclusions
The K-ELUVIA study demonstrated favorable 2-year clinical effectiveness and safety outcomes of Eluvia stent for femoropopliteal artery lesions in real-world practice.
10.Clinical Outcomes After Drug-Coated Balloon Treatment in Popliteal Artery Disease: K-POP Registry 12-Month Results
Jong-Il PARK ; Young-Guk KO ; Seung-Jun LEE ; Chul-Min AHN ; Seung-Woon RHA ; Cheol-Woong YU ; Jong Kwan PARK ; Sang-Ho PARK ; Jae-Hwan LEE ; Su-Hong KIM ; Yong-Joon LEE ; Sung-Jin HONG ; Jung-Sun KIM ; Byeong-Keuk KIM ; Myeong-Ki HONG ; Donghoon CHOI
Korean Circulation Journal 2024;54(8):454-465
Background and Objectives:
The popliteal artery is generally regarded as a “no-stent zone.”Limited data are available on the outcomes of drug-coated balloons (DCBs) for popliteal artery disease. This study aimed to evaluate the 12-month clinical outcomes among patients who received DCB treatment for atherosclerotic popliteal artery disease.
Methods:
This prospective, multicenter registry study enrolled 100 patients from 7 Korean endovascular centers who underwent endovascular therapy using IN.PACT DCB (Medtronic) for symptomatic atherosclerotic popliteal artery disease. The primary endpoint was 12-month clinical primary patency and the secondary endpoint was clinically driven target lesion revascularization (TLR)–free rate.
Results:
The mean age of the study cohort was 65.7±10.8 years, and 77% of enrolled patients were men. The mean lesion length was 93.7±53.7 mm, and total occlusions were present in 45% of patients. Technical success was achieved in all patients. Combined atherectomy was performed in 17% and provisional stenting was required in 11%. Out of the enrolled patients, 91 patients completed the 12-month follow-up. Clinical primary patency and TLR-free survival rates at 12 months were 76.0% and 87.2%, respectively. A multivariate Cox regression analysis identified female and longer lesion length as the significant independent predictors of loss of patency.
Conclusions
DCB treatment yielded favorable 12-month clinical primary patency and TLRfree survival outcomes in patients with popliteal artery disease.

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