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Perioperative Depression and Postoperative Arrhythmia in Elective Coronary Bypass Graft Surgery

This study has been completed.
Information provided by (Responsible Party):
University Health Network, Toronto Identifier:
First received: February 11, 2008
Last updated: February 22, 2013
Last verified: February 2013

Postoperative arrhythmias (heart irregularities) are one of the most common complications after cardiac surgery and are associated with increased morbidity and mortality. Preoperative depression may be an important co-factor in the generation of postoperative arrhythmias due to sympathetic hyperactivity evident in patients with depression.

Objectives: To determine the effect of preoperative depression on postoperative arrhythmia in patients undergoing elective coronary artery bypass graft (CABG) surgery.

Prospective observational study, 120 patients undergoing elective CABG surgery ECG will be preformed preoperatively on all patients. All patients will be assessed for signs of depression using the Prime MD Patient Health Questionnaire (Prime MD PHQ) one week before surgery and 6 weeks postoperatively.Based on the Prime MD PHQ results, patients will be divided into two groups: those with or without signs of depression. Heart rate and rhythm monitoring with Holter will be performed for 3 days postoperatively in order to compare the incidence of postoperative arrhythmias between groups.

The primary outcome is the number of patients with and without depression suffering from ventricular and/or supraventricular arrhythmias. Secondary outcomes include all cause mortality, non-fatal myocardial infarction, cardiac arrest, and congestive heart failure.

CABG surgery is the most common operative procedure in North America and arrhythmias are one of the most common postoperative complication. It is estimated that about a third of these cardiac patients suffer from preoperative depression and therefore may be exposed to a higher risk of perioperative morbidity and mortality. If an association between preoperative depression and postoperative arrhythmia is found, treatment modalities may be indicated to reduce the prevalence of perioperative arrhythmia in patients with preoperative depression undergoing cardiac surgery.

Coronary Artery Disease

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: Perioperative Depression and Postoperative Arrhythmia in Elective Coronary Bypass Graft Surgery

Resource links provided by NLM:

Further study details as provided by University Health Network, Toronto:

Primary Outcome Measures:
  • Number of patients with and without depression suffering from ventricular and/or supraventricular arrhythmias [ Time Frame: Depression assessment and holter monitor 3days postop ]

Enrollment: 120
Study Start Date: January 2009
Study Completion Date: August 2011
Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   18 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
patients undergoing elective CABG surgery

Inclusion Criteria:

  • Patients between 18-75 years of age undergoing elective CABG surgery.
  • Patients must provide informed consent

Exclusion Criteria:

  • Patients with a history of arrhythmias (AF, supraventricular tachycardia, ventricular tachycardia, ventricular fibrillation, permanent pacemaker and/or defibrillator).
  • Patients who are unable to read.
  • Patients with significant psychiatric disorders other than depression.
  • Patients with a history of pulmonary hypertension.
  • Patients with a left ventricular ejection fraction < 40%.
  • Patients with cognitive impairment as measured by the MMSE.
  • Patients on antidepressants at the time of assessment
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Please refer to this study by its identifier: NCT00622024

Canada, Ontario
Toronto General Hospital, UHN
Toronto, Ontario, Canada, M5G 2C4
Sponsors and Collaborators
University Health Network, Toronto
Principal Investigator: Rita Katznelson, MD Toronto General Hospital, UHN
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University Health Network, Toronto Identifier: NCT00622024     History of Changes
Other Study ID Numbers: REB#06-0116-AE
Study First Received: February 11, 2008
Last Updated: February 22, 2013

Keywords provided by University Health Network, Toronto:
Coronary Artery Disease

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Behavioral Symptoms
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases processed this record on May 24, 2017