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Association of Obesity and Cardiovascular Outcomes in Patients With Implantable Cardioverter-defibrillator (ICD) (Paradox)

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ClinicalTrials.gov Identifier: NCT05645965
Recruitment Status : Recruiting
First Posted : December 12, 2022
Last Update Posted : July 27, 2023
Sponsor:
Information provided by (Responsible Party):
Kwang-No Lee, Ajou University School of Medicine

Tracking Information
First Submitted Date December 2, 2022
First Posted Date December 12, 2022
Last Update Posted Date July 27, 2023
Actual Study Start Date July 1, 2022
Estimated Primary Completion Date October 31, 2024   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures
 (submitted: December 2, 2022)
Composite of Outcomes [ Time Frame: 5 years ]
Death + CV hospitalization + Fatal arrest event + Infective endocarditis
Original Primary Outcome Measures Same as current
Change History
Current Secondary Outcome Measures
 (submitted: December 2, 2022)
  • Death [ Time Frame: 5 years ]
    Mortality
  • CV hospitalization [ Time Frame: 5 years ]
    Admission caused by Cardiovacular disease
  • Fatal arrest event [ Time Frame: 5 years ]
    Event of cardiac arrest by ventricular tachycardia and fibrillation
  • Infective endocarditis [ Time Frame: 5 years ]
    Diagnosed with infective endocarditis
Original Secondary Outcome Measures Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title Association of Obesity and Cardiovascular Outcomes in Patients With Implantable Cardioverter-defibrillator (ICD)
Official Title Association of Obesity and Cardiovascular Outcomes in Patients With Implantable Cardioverter-defibrillator (ICD) : a Korean Nationwide Cohort Study
Brief Summary In this study, the investigators evaluated the association between various measures of adiposity [BMI and waist circumference (WC)] and clinical outcomes in Asian patients who underwent Implantable Cardioverter-defibrillator (ICD) insertion, using a nationwide population based cohort.
Detailed Description

This retrospective nationwide cohort study used administrative claims data from the Korean National Health Insurance Service (NHIS) and the combined health check-up database of the National Health Insurance Corporation between 2013 and 2020.

The investigators included patients who underwent implantable cardioverter-defibrillator (ICD) insertion between January 2015 and December 2020. Patients aged <20 years, those who were already taken ICD insertion before 2015, and those with cancer were excluded from the analysis. The follow-up period was defined as the time from the index date (date of device procedure) to each outcome event, date of death, or end of the study period (December 31, 2020), whichever came first.

Patients' demographic data, comorbidities, concomitant medications, and income level were collected from the Korean NHIS database. The recent health check-up data from the index date was also ascertained, including height, weight, waist circumference, blood pressure, health surveys, and laboratory exam. Health survey included family history, smoking history, alcohol history, and the level of individual physical activity.

According to BMI following the World Health Organization recommendation for Asian population, study patients were categorized into 5 groups: underweight, <18.5 kg/m2; normal range, 18.5 to <23 kg/m2; overweight, 23 to <25 kg/m2; obese I, 25 to <30 kg/m2; and obese II, ≥30 kg/m2[4]. The investigators defined the proportion of medical use by calculating formula with the recuperation cost and the number of the visit to hospitals.

During the follow-up period, the investigators assessed 3 clinical outcomes, including all-cause death, cardiovascular hospitalization and the recurrence rate. Clinical outcomes were mainly defined by the the International Classification of Diseases, 10th revision (ICD-10). Patients were censored at the clinical outcomes or the end of the study period (December 31, 2020), whichever came first.

All categorical variables are presented as frequencies and percentages. Normally distributed data were presented as mean ± standard deviation, whereas nonparametric data are presented as median and interquartile range by BMI.

Cox proportional hazard regression analyses were performed to identify the association of BMI with the primary and secondary outcomes, calculating hazard ratio (HR) and 95% confidence interval (CI) and adjusting for the following potential confounders: sex, age, systolic blood pressure, fasting glucose level, total cholesterol level, alcohol consumption, smoking status, physical activity, household income, use of antihypertensive agents, use of statins, use of antiplatelet agents, previous history of MI, previous history of stroke, and index year. All analyses were conducted using R-statistics.

Study Type Observational
Study Design Observational Model: Cohort
Time Perspective: Other
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Non-Probability Sample
Study Population

We included patients who underwent implantable cardioverter-defibrillator (ICD) insertion between January 2015 and December 2020. Patients aged <20 years, those who were already taken ICD insertion before 2015, and those with cancer were excluded from the analysis.

The follow-up period was defined as the time from the index date (date of device procedure) to each outcome event, date of death, or end of the study period (December 31, 2020), whichever came first.

Condition
  • Implantable Defibrillator User
  • Arrhythmias, Cardiac
  • Obesity
  • Cardiovascular Morbidity
Intervention Device: ICD insertion
Patients who underwent implantable cardioverter-defibrillator (ICD) insertion between January 2015 and December 2020
Other Name: Implantable cardioverter-defibrillator insertion
Study Groups/Cohorts Patients who underwent implantable cardioverter-defibrillator (ICD) insertion during study period
Patients who underwent implantable cardioverter-defibrillator (ICD) insertion between January 2015 and December 2020
Intervention: Device: ICD insertion
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Recruiting
Estimated Enrollment
 (submitted: December 2, 2022)
20000
Original Estimated Enrollment Same as current
Estimated Study Completion Date December 31, 2024
Estimated Primary Completion Date October 31, 2024   (Final data collection date for primary outcome measure)
Eligibility Criteria

Inclusion Criteria:

  • Patients who underwent implantable cardioverter-defibrillator (ICD) insertion between January 2015 and December 2020

Exclusion Criteria:

  • Patients aged <20 years
  • Patients already taken ICD insertion before 2015
  • Patients with cancer
Sex/Gender
Sexes Eligible for Study: All
Ages 20 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers Yes
Contacts
Contact: Kwang-No LEE +82-9286-1123 knlee81@ajou.ac.kr
Contact: Moon-Seung SOH +82-10-5386-7701 mssoh7701@gmail.com
Listed Location Countries Korea, Republic of
Removed Location Countries  
 
Administrative Information
NCT Number NCT05645965
Other Study ID Numbers AJOUIRB-EXP-2021-398-5
Has Data Monitoring Committee No
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement
Plan to Share IPD: No
Current Responsible Party Kwang-No Lee, Ajou University School of Medicine
Original Responsible Party Same as current
Current Study Sponsor Ajou University School of Medicine
Original Study Sponsor Same as current
Collaborators Not Provided
Investigators
Study Chair: Kwang-No LEE Ajou University School of Medicine
PRS Account Ajou University School of Medicine
Verification Date July 2023