Coronary sinus Reducer device for the treatment of refractory angina: A multicenter initial experience

The coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not amenable to revascularization. Our aim was to assess the safety and efficacy of the CSR in a real-world setting. Twenty-six patients with refrac...

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Published inRevista portuguesa de cardiologia Vol. 42; no. 5; pp. 413 - 420
Main Authors Ferreira Reis, João, Brízido, Catarina, Madeira, Sérgio, Ramos, Rúben, Almeida, Manuel, Cacela, Duarte
Format Journal Article
LanguageEnglish
Published Portugal Elsevier España, S.L.U 01.05.2023
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Abstract The coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not amenable to revascularization. Our aim was to assess the safety and efficacy of the CSR in a real-world setting. Twenty-six patients with refractory angina (RA) and evidence of myocardial ischemia attributable to the left coronary artery considered unsuitable for revascularization were treated with the CSR at two centers between May 2017 and July 2019. Safety endpoints were procedural success and complications. Efficacy endpoints, assessed at six-month follow-up, were reduction in CCS class, improvement in quality of life (QoL) assessed using the short version of the Seattle Angina Questionnaire (SAQ-7), and reduction in antianginal therapy. Twenty-three patients had end-stage coronary artery disease without revascularization targets and three had microvascular disease without epicardial stenosis. Procedural success was achieved in 23 patients, with two device/procedure-related complications and one anatomically-related failure to deliver the device. A total of 24 patients had the device implanted and entered the efficacy analysis. Eighteen patients (75.0%) had a reduction of at least one CCS class, 41.7% had a reduction of at least two classes, and 16.7% became asymptomatic, with a mean reduction in CCS class of 1.3±0.2 (p=0.001) at six-month follow-up. All SAQ-7 domains improved, notably physical limitation (p=0.001), angina frequency (p=0.005) and QoL (p=0.006). There was a mean reduction in anti-ischemic drugs from 3.4±1.1 to 2.9±1.2 (p=0.010). In this real-world, multicenter experience, implantation of the CSR was associated with improvement in angina and QoL in patients with RA. O dispositivo de redução do seio coronário (DRSC) constitui uma terapêutica complementar em doentes com angina refratária à terapêutica médica e não passíveis de revascularização. O objectivo era avaliar a segurança e eficácia do DRSC numa coorte do mundo real. Vinte e seis doentes com angina refratária, evidência de isquemia miocárdica atribuível à artéria coronária esquerda e considerados inadequados para revascularização foram tratados com o DRSC em dois centros terciários portugueses entre maio de 2017 e julho de 2019. Os endpoints de segurança foram o sucesso do procedimento e complicações. Os endpoints de eficácia, avaliados aos seis meses de follow-up, foram uma redução na classe de angina da CCS, melhoria na qualidade de vida avaliada pela versão abreviada do Seattle Angina Questionnaire (SAQ-7) e redução na terapêutica antianginosa. Vinte e três doentes tinham doença coronária sem alvos de revascularização e três, doença microvascular sem estenoses epicárdicas. O sucesso do procedimento foi alcançado em 23 doentes, com duas complicações relacionadas com dispositivo/procedimento e uma falha na entrega do dispositivo. No total, 24 doentes implantaram o dispositivo e entraram na análise de eficácia. Dezoito doentes (75,0%) sofreram uma redução de pelo menos uma classe CCS, 41,7% sofreram uma redução de pelo menos duas classes e 16,7% tornaram-se assintomáticos, com uma redução média da classe CCS de 1,3±0,2 (p=0,001), seis meses de follow-up. Verificou-se uma melhoria de todos os domínios do SAQ-7, nomeadamente limitação física (p=0,001), frequência de angina (p=0,005) e qualidade de vida (p=0,006). Verificou-se uma redução média de fármacos antianginosos de 3,4±1,1 para 2,9±1,2 (p=0,010). Nesta experiência multicêntrica do mundo real, a implantação do DRSC foi associada à melhoria das queixas anginosas e da qualidade de vida em doentes com angina refratária não passível de revascularização.
AbstractList The coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not amenable to revascularization. Our aim was to assess the safety and efficacy of the CSR in a real-world setting. Twenty-six patients with refractory angina (RA) and evidence of myocardial ischemia attributable to the left coronary artery considered unsuitable for revascularization were treated with the CSR at two centers between May 2017 and July 2019. Safety endpoints were procedural success and complications. Efficacy endpoints, assessed at six-month follow-up, were reduction in CCS class, improvement in quality of life (QoL) assessed using the short version of the Seattle Angina Questionnaire (SAQ-7), and reduction in antianginal therapy. Twenty-three patients had end-stage coronary artery disease without revascularization targets and three had microvascular disease without epicardial stenosis. Procedural success was achieved in 23 patients, with two device/procedure-related complications and one anatomically-related failure to deliver the device. A total of 24 patients had the device implanted and entered the efficacy analysis. Eighteen patients (75.0%) had a reduction of at least one CCS class, 41.7% had a reduction of at least two classes, and 16.7% became asymptomatic, with a mean reduction in CCS class of 1.3±0.2 (p=0.001) at six-month follow-up. All SAQ-7 domains improved, notably physical limitation (p=0.001), angina frequency (p=0.005) and QoL (p=0.006). There was a mean reduction in anti-ischemic drugs from 3.4±1.1 to 2.9±1.2 (p=0.010). In this real-world, multicenter experience, implantation of the CSR was associated with improvement in angina and QoL in patients with RA.
INTRODUCTIONThe coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not amenable to revascularization. Our aim was to assess the safety and efficacy of the CSR in a real-world setting. METHODSTwenty-six patients with refractory angina (RA) and evidence of myocardial ischemia attributable to the left coronary artery considered unsuitable for revascularization were treated with the CSR at two centers between May 2017 and July 2019. Safety endpoints were procedural success and complications. Efficacy endpoints, assessed at six-month follow-up, were reduction in CCS class, improvement in quality of life (QoL) assessed using the short version of the Seattle Angina Questionnaire (SAQ-7), and reduction in antianginal therapy. RESULTSTwenty-three patients had end-stage coronary artery disease without revascularization targets and three had microvascular disease without epicardial stenosis. Procedural success was achieved in 23 patients, with two device/procedure-related complications and one anatomically-related failure to deliver the device. A total of 24 patients had the device implanted and entered the efficacy analysis. Eighteen patients (75.0%) had a reduction of at least one CCS class, 41.7% had a reduction of at least two classes, and 16.7% became asymptomatic, with a mean reduction in CCS class of 1.3±0.2 (p=0.001) at six-month follow-up. All SAQ-7 domains improved, notably physical limitation (p=0.001), angina frequency (p=0.005) and QoL (p=0.006). There was a mean reduction in anti-ischemic drugs from 3.4±1.1 to 2.9±1.2 (p=0.010). CONCLUSIONIn this real-world, multicenter experience, implantation of the CSR was associated with improvement in angina and QoL in patients with RA.
The coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not amenable to revascularization. Our aim was to assess the safety and efficacy of the CSR in a real-world setting. Twenty-six patients with refractory angina (RA) and evidence of myocardial ischemia attributable to the left coronary artery considered unsuitable for revascularization were treated with the CSR at two centers between May 2017 and July 2019. Safety endpoints were procedural success and complications. Efficacy endpoints, assessed at six-month follow-up, were reduction in CCS class, improvement in quality of life (QoL) assessed using the short version of the Seattle Angina Questionnaire (SAQ-7), and reduction in antianginal therapy. Twenty-three patients had end-stage coronary artery disease without revascularization targets and three had microvascular disease without epicardial stenosis. Procedural success was achieved in 23 patients, with two device/procedure-related complications and one anatomically-related failure to deliver the device. A total of 24 patients had the device implanted and entered the efficacy analysis. Eighteen patients (75.0%) had a reduction of at least one CCS class, 41.7% had a reduction of at least two classes, and 16.7% became asymptomatic, with a mean reduction in CCS class of 1.3±0.2 (p=0.001) at six-month follow-up. All SAQ-7 domains improved, notably physical limitation (p=0.001), angina frequency (p=0.005) and QoL (p=0.006). There was a mean reduction in anti-ischemic drugs from 3.4±1.1 to 2.9±1.2 (p=0.010). In this real-world, multicenter experience, implantation of the CSR was associated with improvement in angina and QoL in patients with RA. O dispositivo de redução do seio coronário (DRSC) constitui uma terapêutica complementar em doentes com angina refratária à terapêutica médica e não passíveis de revascularização. O objectivo era avaliar a segurança e eficácia do DRSC numa coorte do mundo real. Vinte e seis doentes com angina refratária, evidência de isquemia miocárdica atribuível à artéria coronária esquerda e considerados inadequados para revascularização foram tratados com o DRSC em dois centros terciários portugueses entre maio de 2017 e julho de 2019. Os endpoints de segurança foram o sucesso do procedimento e complicações. Os endpoints de eficácia, avaliados aos seis meses de follow-up, foram uma redução na classe de angina da CCS, melhoria na qualidade de vida avaliada pela versão abreviada do Seattle Angina Questionnaire (SAQ-7) e redução na terapêutica antianginosa. Vinte e três doentes tinham doença coronária sem alvos de revascularização e três, doença microvascular sem estenoses epicárdicas. O sucesso do procedimento foi alcançado em 23 doentes, com duas complicações relacionadas com dispositivo/procedimento e uma falha na entrega do dispositivo. No total, 24 doentes implantaram o dispositivo e entraram na análise de eficácia. Dezoito doentes (75,0%) sofreram uma redução de pelo menos uma classe CCS, 41,7% sofreram uma redução de pelo menos duas classes e 16,7% tornaram-se assintomáticos, com uma redução média da classe CCS de 1,3±0,2 (p=0,001), seis meses de follow-up. Verificou-se uma melhoria de todos os domínios do SAQ-7, nomeadamente limitação física (p=0,001), frequência de angina (p=0,005) e qualidade de vida (p=0,006). Verificou-se uma redução média de fármacos antianginosos de 3,4±1,1 para 2,9±1,2 (p=0,010). Nesta experiência multicêntrica do mundo real, a implantação do DRSC foi associada à melhoria das queixas anginosas e da qualidade de vida em doentes com angina refratária não passível de revascularização.
Author Madeira, Sérgio
Almeida, Manuel
Brízido, Catarina
Ramos, Rúben
Cacela, Duarte
Ferreira Reis, João
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Issue 5
Keywords Coronary sinus Reducer
Refractory angina
Qualidade de vida
Dispositivo de redução do seio coronário
Coronary artery disease
Doença coronária
Angina refratária
Quality of life
Language English
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Snippet The coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy and not...
INTRODUCTIONThe coronary sinus Reducer (CSR) device has emerged as a complementary therapy in patients with severe angina refractory to optimal medical therapy...
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StartPage 413
SubjectTerms Angina Pectoris - surgery
Angina refratária
Coronary artery disease
Coronary Sinus - surgery
Coronary sinus Reducer
Dispositivo de redução do seio coronário
Doença coronária
Humans
Prostheses and Implants
Qualidade de vida
Quality of Life
Refractory angina
Treatment Outcome
Title Coronary sinus Reducer device for the treatment of refractory angina: A multicenter initial experience
URI https://dx.doi.org/10.1016/j.repc.2022.05.010
https://www.ncbi.nlm.nih.gov/pubmed/36828185
https://search.proquest.com/docview/2780073829
Volume 42
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