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Patients Waiting for Coronary Artery Bypass Graft SurgeryPREHABNCT02219815

Pre-operative Rehabilitation for Reduction of Hospitalization After Coronary Bypass and Valvular Surgery.

A study testing Prehab Intervention in people with Patients Waiting for Coronary Artery Bypass Graft Surgery and Patients Waiting for Aortic Valve Repair or Replacement, run by St. Boniface Hospital at 5 sites in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The PREHAB study is a clinical trial where frail patients waiting for heart surgery are randomly chosen to either receive the current standard of care or to participate in an 8-week exercise/education program at a community-based cardiac rehabilitation facility. Read more about this study

Who is it for?
Ages 60 years and older
What is being tested?
Prehab Intervention
Could I receive a placebo?
No, everyone receives an active treatment
How many people
89 participants
Where
5 sitesCanada
Study dates
Apr 2015to 30 Jun 2018
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged 60 years and older, undergoing elective isolated coronary artery bypass grafting (CABG), aortic valve repair/replacement for moderate aortic stenosis or severe regurgitation, mitral valve repair/replacement for moderate stenosis or severe regurgitation or combined CABG/valve procedures
  • Patients with Clinical Frailty Score (CFS) ≥3 (vulnerable) and < 7 (8 = very severely frail, approaching end-of-life or 9 = terminally ill) at time of acceptance for cardiac surgery
  • Patients with an estimated ≥ 6 week wait time

Who cannot join

  • Patients who have unstable or recent unstable cardiac syndrome as defined by:
  • Severe heart failure (NYHA IV) or angina (CCS class IV) symptoms
  • Critical left main (LM) coronary disease
  • Hospitalization for arrhythmias, congestive heart failure or acute coronary syndrome prior to randomization
  • Patients who have severe left ventricular obstructive disease as defined by:
  • Severe aortic or mitral stenosis (aortic or mitral valve area <1.0cm2 or mean gradient > 40 mmHg or > 10 mmHg respectively)
Show all 11Show fewer
  • Dynamic left ventricular (LV) outflow obstruction
  • Patients who have demonstrated exercise induced ventricular arrhythmias or have experienced a recent hospitalization for arrhythmias
  • Patients who have cognitive deficits that would preclude rehabilitation
  • Patients who have physical limitations that would preclude rehabilitation
  • Patients who are unable to attend the Prehab program

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

Canada5 sites
  • Queen Elizabeth II Health Sciences Centre

    Halifax, Nova Scotia, B3H3A7

  • Montreal Heart Institute

    Montreal, Quebec, H1T 1C8

  • Laval University

    Québec, Quebec, G1V4G5

  • Saint John Regional Hospital - New Brunswick Heart Centre

    Saint John, New Brunswick, E2L4L2

  • St. Boniface General Hospital

    Winnipeg, Manitoba, R2H2A6

Other trials in Canada

About this study

The PREHAB study is a clinical trial where frail patients waiting for heart surgery are randomly chosen to either receive the current standard of care or to participate in an 8-week exercise/education program at a community-based cardiac rehabilitation facility. Patients can wait for elective heart surgery for as long as 3-4 months. During this time, individuals are often fearful of making things worse, causing them to stop being active and further deteriorate their physical condition. This wait period presents a potential opportunity for health care providers to engage the patient to take control of their self-managed care prior to surgery with the intent of improving post-surgical outcomes. Patients randomized to the PREHAB intervention group will participate in supervised exercise twice per week in a program designed to improve physical functioning and exercise capacity. The investigators hypothesize that the PREHAB program for frail elderly patients awaiting an elective cardiac surgery will reduce frailty, improve exercise capacity, improve physical activity behaviour, improve in-hospital outcomes, improve clinical outcomes 3 months and 1 year postoperatively, and improve overall quality of life.

Read the detailed description

PREHAB will be a three centre prospective, randomized, open, blinded endpoint (PROBE) controlled trial using assessor blinding and intention-to-treat analysis. The study will be conducted at three academic, tertiary care hospitals (St. Boniface Hospital, Winnipeg, MB, Montreal Heart Institute. Montreal QC and Queen Elizabeth II Health Sciences Centre, Halifax, NS) and one non-academic hospital (Saint John Regional Health Centre, Saint John, NB) that perform cardiac surgery. These sites were chosen based on similar patient populations and surgical waitlist times. Additionally, each of these sites are partnered with one or more community-based cardiac rehabilitation (CR) centres, which are certified medical fitness facilities dedicated to improving the health of the community through health promotion, disease prevention and rehabilitation services. These facilities offer expert guidance from certified professionals, innovative health enhancement programs, and provide integrated medical, rehabilitative and fitness services. The investigators intend to recruit a total of 244 participants to the study (122 per study arm), anticipating a 20% dropout rate to achieve an eventual sample size of 194 participants.

Patients in the PREHAB group will receive, in addition to standard of care, an eight-week comprehensive exercise therapy and education program at a community-based CR facility. This program will target both the physical and psycho-social-cognitive aspects of cardiac disease and frailty. In brief, participants will be required to complete an intake health status assessment by the CR team including a physiotherapist, cardiovascular nurse, and dietitian and complete a symptom-limited graded exercise stress test according to the American College of Sports Medicine Guidelines for Exercise Testing and Prescription 7th Edition. Patients will be asked to complete at least two sessions of supervised, structured exercise class plus have the option to attend one additional exercise class per week for eight-weeks, with progression to a moderate to high-intensity interval program based on the supervised assessment of the patient's capabilities. This has been shown to be safe and effective in unrepaired heart failure and elderly patients. PREHAB participants will also attend four education sessions on topics such as risk factor reduction, medication use, cardiovascular physiology, smoking cessation, healthy eating, exercise, and stress management and promotion of self-managed care.

Being tested
Prehab Intervention
Keywords
Preoperative Care, Exercise Therapy, Cardiac Surgery, Frailty
Medical subject headings
Frailty

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Prehab InterventionBehavioural

    Pre-operative, structured exercise intervention.

Study groups in NCT02219815
Study groupRoleWhat they receive
Standard CareNo interventionPatients in the standard care group will receive care as is currently delivered to patients awaiting cardiac surgery at each site. At present, patients are advised to rest and participate in very light intensity physical activity while awaiting surgery. At 1-2 weeks prior to their scheduled surgical date, the patient attends a single three hour cardiac pre-assessment with a nurse practitioner and cardiac anesthesiologist. In addition, a cardiac nurse counsels each patient on healthy behaviors (e.g. smoking cessation, diet, exercise).
Prehab InterventionExperimentalPatients in the Prehab group will receive, in addition to the standard of care, an eight-week comprehensive exercise therapy and education program at a community-based CR facility. Patients will be asked to complete at least two sessions of supervised, structured exercise class plus have the option to attend one additional exercise class per week for eight-weeks, with progression to a moderate to high-intensity interval program based on the supervised assessment of the patient's capabilities. Prehab participants will also attend four education sessions on topics such as risk factor reduction, medication use, cardiovascular physiology, smoking cessation, healthy eating, exercise, and stress management and promotion of self-managed care.
Receives: Behavioral: Prehab Intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of Patients With Hospital Length of Stay Greater Than 7 Days.

    Proportion of patients with hospital length of stay greater than 7 days compared to those with less than 7 days

    Measured: Post-surgery (approximately 9 weeks after baseline)

Secondary outcomes (26)
  1. Baseline Exercise Capacity

    This measure will be assessed using the results of a 6 minute walk test.

    Measured: baseline assessment - Study entry

  2. Preoperative Exercise Capacity

    This measure will be assessed using the results of a 6 minute walk test.

    Measured: Pre-Surgery (approximately 8 weeks after baseline)

  3. 3-Month Exercise Capacity

    This measure will be assessed using the results of a 6 minute walk test.

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  4. 1-Year Exercise Capacity

    This measure will be assessed using the results of a 6 minute walk test.

    Measured: 1 Year Post-Surgery (approximately 14 months after baseline)

  5. Baseline Physical Activity Behaviour

    This measure will be assessed objectively using accelerometers. Moderate and vigorous physical activity (MVPA) will be compared

    Measured: baseline assessment - Study entry

  6. Preoperative Physical Activity Behaviour

    This measure will be assessed objectively using accelerometers. Moderate and vigorous physical activity (MVPA) will be compared

    Measured: Pre-Surgery (approximately 8 weeks after baseline)

  7. 3-Month Physical Activity Behaviour

    This measure will be assessed objectively using accelerometers. Moderate and vigorous physical activity (MVPA) will be compared

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  8. 1-Year Physical Activity Behaviour

    This measure will be assessed objectively using accelerometers. Moderate and vigorous physical activity (MVPA) will be compared

    Measured: 1 Year Post-Surgery (approximately 14 months after baseline)

  9. Baseline Health-Related Quality of Life

    This measure will be assessed using EuroQual-Visual Analogue Scale. (EQ-VAS) This scale ranges from 0 - 100 with 0 = worst health and 100 = best health

    Measured: baseline assessment - Study entry

  10. Preoperatve Health-Related Quality of Life

    This measure will be assessed using EuroQual-Visual Analogue Scale. (EQ-VAS) This scale ranges from 0 - 100 with 0 = worst health and 100 = best health

    Measured: Pre-Surgery (approximately 8 weeks after baseline)

  11. 3-Month Health-Related Quality of Life

    This measure will be assessed using EuroQual-Visual Analogue Scale. (EQ-VAS) This scale ranges from 0 - 100 with 0 = worst health and 100 = best health

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  12. 1-Year Health-Related Quality of Life

    This measure will be assessed using EuroQual-Visual Analogue Scale. (EQ-VAS) This scale ranges from 0 - 100 with 0 = worst health and 100 = best health

    Measured: 1 Year Post-Surgery (approximately 14 months after baseline)

  13. Baseline Frailty

    This measure will be assessed using the Modified Fried Criteria score Score ranges from 0 - 5, 0=not frail, 1=prefrail, 2-5=frail

    Measured: baseline assessment - Study entry

  14. Preoperative Frailty

    This measure will be assessed using the Modified Fried Criteria score Score ranges from 0 - 5, 0=not frail, 1=prefrail, 2-5=frail

    Measured: Pre-Surgery (approximately 8 weeks after baseline)

  15. 3-Month Frailty

    This measure will be assessed using the Modified Fried Criteria score Score ranges from 0 - 5, 0=not frail, 1=prefrail, 2-5=frail

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  16. 1-Year Frailty

    This measure will be assessed using the Modified Fried Criteria Score ranges from 0 - 5, 0=not frail, 1=prefrail, 2-5=frail

    Measured: 1 Year Post-Surgery (approximately 14 months after baseline)

  17. Baseline Anxiety

    This measure will be assessed using the General Anxiety Disorder - 7 (GAD-7) Score is out of 0-21 points. The higher the score the more symptoms of anxiety may be observed

    Measured: Baseline Assessment - Study entry

  18. Preoperative Anxiety

    This measure will be assessed using the General Anxiety Disorder - 7 (GAD-7) Score is out of 0-21 points. The higher the score the more symptoms of anxiety may be observed

    Measured: Pre-Surgery Assessment (approximately 8 weeks after baseline)

  19. 3-Month Anxiety

    This measure will be assessed using the General Anxiety Disorder - 7 (GAD-7) Score is out of 0-21 points. The higher the score the more symptoms of anxiety may be observed

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  20. 1-Year Anxiety

    This measure will be assessed using the General Anxiety Disorder - 7 (GAD-7) Score is out of 0-21 points. The higher the score the more symptoms of anxiety may be observed

    Measured: 1 Year Post-Surgery (approximately 14 months after baseline)

  21. Baseline Depression

    This measure will be assessed using the Five-item Geriatric Depression Scale (GDS-5) Score is based from 0-5. A score of 2 or more may indicated symptoms of depression

    Measured: Baseline Assessment - Study entry

  22. Preoperative Depression

    This measure will be assessed using the Five-item Geriatric Depression Scale (GDS-5) Score is based from 0-5. A score of 2 or more may indicated symptoms of depression

    Measured: Pre-surgery Assessment ( 8 weeks after baseline)

  23. 3-Month Depression

    This measure will be assessed using the Five-item Geriatric Depression Scale (GDS-5) Score is based from 0-5. A score of 2 or more may indicated symptoms of depression

    Measured: 3 Months Post-Surgery (approximately 5 months after baseline)

  24. 1 Year Depression

    This measure will be assessed using the Five-item Geriatric Depression Scale (GDS-5) Score is based from 0-5. A score of 2 or more may indicated symptoms of depression

    Measured: 1 year Post-Surgery (approximately 14 months after baseline)

  25. Postoperative Major Adverse Events

    Major adverse events include death, myocardial infarction (MI), stroke or renal failure requiring dialysis.

    Measured: Post-Surgery (approximately 9 weeks after baseline)

  26. Postoperative Cardiac Rehabilitation Attendance

    Will be assessed using administrative data from participating cardiac rehabilitation facilities.

    Measured: Post-Surgery (approximately 20 weeks after baseline)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Aug 2014 (estimated)
  2. Study startApr 2015
  3. Primary completion30 Jun 2018
  4. Study completion30 Jun 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
89 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02219815
Sponsor's protocol ID
PREHAB
Acronym
PREHAB
Status last verified
Oct 2024
First submitted
30 Jul 2014
Last updated
29 Oct 2024
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Kehler DS, Stammers AN, Tangri N, Hiebert B, Fransoo R, Schultz ASH, Macdonald K, Giacomontonio N, Hassan A, Legare JF, Arora RC, Duhamel TA. Systematic review of preoperative physical activity and its impact on postcardiac surgical outcomes. BMJ Open. 2017 Aug 11;7(8):e015712. doi: 10.1136/bmjopen-2016-015712.

    PubMed 28801404
  • Stammers AN, Kehler DS, Afilalo J, Avery LJ, Bagshaw SM, Grocott HP, Legare JF, Logsetty S, Metge C, Nguyen T, Rockwood K, Sareen J, Sawatzky JA, Tangri N, Giacomantonio N, Hassan A, Duhamel TA, Arora RC. Protocol for the PREHAB study-Pre-operative Rehabilitation for reduction of Hospitalization After coronary Bypass and valvular surgery: a randomised controlled trial. BMJ Open. 2015 Mar 9;5(3):e007250. doi: 10.1136/bmjopen-2014-007250.

    PubMed 25753362

Questions about this trial

What is this clinical trial studying?

A study testing Prehab Intervention in people with Patients Waiting for Coronary Artery Bypass Graft Surgery and Patients Waiting for Aortic Valve Repair or Replacement, run by St. Boniface Hospital at 5 sites in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Oct 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of Patients With Hospital Length of Stay Greater Than 7 Days. (time frame: Post-surgery (approximately 9 weeks after baseline)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02219815, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2024.

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