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- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT07823998
Coffee Use, Physical Activity and Symptomatic Ventricular Arrhythmias in Patients With Left Ventricular Dysfunction and an ICD (CUPS-ICD)
The goal of this observational study is to learn whether caffeine consumption is associated with ventricular arrhythmias and physical activity in adults with heart failure, reduced left ventricular ejection fraction, and an implantable cardioverter-defibrillator (ICD). The main questions it aims to answer are:
Is caffeine consumption associated with the burden of premature ventricular contractions (PVCs)? Is caffeine consumption associated with the occurrence of ventricular arrhythmias, including non-sustained ventricular tachycardia (NSVT), sustained monomorphic ventricular tachycardia (SMVT), and ventricular fibrillation (VF)? Is caffeine consumption associated with the level of daily physical activity recorded by the ICD?
Participants will:
Complete a one-time questionnaire about their consumption of coffee and other caffeine-containing products during the previous 7 days.
Allow researchers to collect relevant information from their medical records. Allow researchers to use data already collected during the routine follow-up of their ICD, including information on heart rhythm abnormalities, heart rate, and physical activity.
No additional hospital visits, medical examinations, blood tests, or changes to treatment are required as part of this study.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Tipo de estudo
Inscrição (Estimado)
Contactos e Locais
Locais de estudo
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-
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Bruges, Bélgica
- AZ Sint-Jan Brugge
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Contato:
- Dr. Jesús Diz Díaz
- Número de telefone: +3250452670
- E-mail: cardiologie@azsintjan.be
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- Written informed consent obtained prior to any study procedure.
- Age ≥18 years.
- Left ventricular systolic dysfunction (LVEF <50%), i.e. HFrEF or HFmrEF, documented on the most recent available transthoracic echocardiogram.
- Presence of a transvenous implantable cardioverter-defibrillator (ICD), including cardiac resynchronization therapy defibrillators (CRT-D), implanted at least 12 months before the caffeine questionnaire.
Exclusion Criteria:
- Presence of channelopathies.
- Subcutaneous implantable cardioverter-defibrillator (S-ICD), which does not provide ventricular ectopic beat counters, accelerometer-derived physical activity data or antitachycardia pacing, and therefore cannot generate the primary outcome measure.
- Inability to complete the study questionnaire on coffee and caffeinated product consumption.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Burden of premature ventricular contractions (PVCs)
Prazo: 12 months
|
Burden of premature ventricular contractions (PVCs), expressed as the percentage of total recorded ventricular beats represented by PVCs (%PVC burden), as provided by the device's remote monitoring software, assessed over the 12 months immediately preceding the date of the caffeine questionnaire, averaged across all monitored days.
Unit: percent (%).
|
12 months
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Non-sustained ventricular tachycardia (NSVT): occurrence (%)
Prazo: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as occurrence (percentage of participants).
|
12 months
|
|
Non-sustained ventricular tachycardia (NSVT): rate
Prazo: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as rate (episodes per 100 monitored days).
|
12 months
|
|
Non-sustained ventricular tachycardia (NSVT): distribution
Prazo: 12 months
|
Non-sustained ventricular tachycardia (NSVT).
Untreated episodes of at least three consecutive ventricular beats above the programmed detection cut-off, lasting less than 30 seconds.
For each episode, the device-assigned date and time will be recorded.
Reported as the distribution of episodes across time.
|
12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): occurrence (%)
Prazo: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as occurrence (percentage of participants).
|
12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): rate
Prazo: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as rate (episodes per 100 monitored days).
|
12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): median episode duration (seconds)
Prazo: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as median episode duration (seconds).
|
12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): mode of termination
Prazo: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as mode of termination (percentage of episodes terminating spontaneously, by antitachycardia pacing, or by shock).
|
12 months
|
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF): mean cycle length (ms)
Prazo: 12 months
|
Sustained monomorphic (SMVT) and polymorphic ventricular tachycardia (PVT/VF).
Episodes lasting at least 30 seconds or terminated by device therapy.
Reported as mean cycle length (milliseconds).
|
12 months
|
|
Physical activity (hours per day)
Prazo: 12 months
|
Physical activity, absolute.
Daily physical activity recorded by the ICD accelerometer and reported by the remote monitoring platform, averaged across monitored days; platforms reporting activity as a proportion of the day are converted by multiplying by 24.
Unit: hours per day.
|
12 months
|
|
Physical activity: mean daily activity expressed as a z-score
Prazo: 12 months
|
Physical activity, manufacturer-standardised. Each participant's mean daily activity expressed as a z-score relative to the mean and standard deviation of all study participants monitored on the same platform.
Unit: standard deviation units.
|
12 months
|
Colaboradores e Investigadores
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- CUPS-ICD
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