NCT06830967

Brief Summary

The time between diagnosis and operative intervention represents an untapped opportunity to optimize patient readiness for surgery and augment their function prior to undergoing a physiological stress, rather than purely recovering post-operatively. Vascular surgery patients are frail and primed to benefit from such interventions and upcoming surgery is a strong motivator for behavioral change. In this proposal, the investigators outline our vision for a prehabilitation program for patients undergoing elective open aortic aneurysm repair (AAA). Participants scheduled to undergo AAA repair would receive, in addition to standard of care, 5 main interventions: exercise therapy; smoking cessation counseling and pharmacotherapy; nutritional counseling; psychological readiness planning and patient education. Exercise therapy will consist of 6 weeks of moderate exercise coordinated remotely through the cardiology rehabilitation program, whereas all other interventions will be consultations through videoconferencing or phone interactions. Outcomes of interest include morbidity, mortality, predictors of completion of program, exercise function and quality of life. This study is a pilot feasibility project and the first step in the creation of a long-term program that will improve patient clinical outcomes, exercise capacity quality of life and hopefully become an model for prehabilitation for other institutions across the country and raise the standard of care for vascular surgery patients.

Trial Health

65
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
8mo left

Started Mar 2025

Typical duration for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress65%
Mar 2025Dec 2026

First Submitted

Initial submission to the registry

January 29, 2025

Completed
19 days until next milestone

First Posted

Study publicly available on registry

February 17, 2025

Completed
12 days until next milestone

Study Start

First participant enrolled

March 1, 2025

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2026

Expected
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

February 17, 2025

Status Verified

February 1, 2025

Enrollment Period

1.8 years

First QC Date

January 29, 2025

Last Update Submit

February 13, 2025

Conditions

Keywords

AAAprehabilitationabdominal aortic aneurysm

Outcome Measures

Primary Outcomes (1)

  • Postoperative complications measured by the Comprehensive Complication Index (CCI)

    The CCI was developed to address some of the limitations of traditional surgical morbidity reporting, such as only reporting the most severe complication or only picking the most common types of complications. It is scored on a true linear interval scale from 0-100 and incorporates the totality of all complications and their severity experienced by a patient

    CCI will be measured from admission to 6 weeks postoperatively

Secondary Outcomes (11)

  • Change in aerobic function

    Measured at baseline, preoperatively and 6 weeks postoperatively

  • Physical activity

    Measured at baseline, preoperatively and 6 weeks postoperatively

  • Quality of life

    Measured at baseline, preoperatively and 6 weeks postoperatively

  • Anxiety

    Measured at baseline, preoperatively and 6 weeks postoperatively

  • Compliance

    Measured from baseline to preoperatively

  • +6 more secondary outcomes

Study Arms (1)

Prehabilitation arm

EXPERIMENTAL

Participants in the intervention arm will receive a prehabilitation bundle between the time of diagnosis of abdominal aortic aneurysm and open surgical repair. The prehabilitation bundle will consist of 5 main interventions: exercise therapy; smoking cessation counseling and pharmacotherapy; nutritional counseling; psychological readiness planning and patient education. Exercise therapy will consist of 6 weeks of prescribed moderate exercise coordinated remotely through the physiotherapy. Smoking cessation will consist of motivational interview with adjunctive pharmacotherapy prescribed as required. Nutritional assessment will be remotely coordinated with a certified dietician and psychological readiness and patient education will consist of 2 1 hour sessions with a counselor.

Other: PrehabilitationBehavioral: Exercise therapyBehavioral: Smoking cessation counsellingBehavioral: Nutritional counsellingBehavioral: Psychological interventionBehavioral: Patient Education

Interventions

Prehabilitation will consist of exercise therapy, smoking cessation, nutritional counselling, psychological intervention and patient education.

Prehabilitation arm

Exercise therapy will consist of tailored 6-week prescribed exercise program consisting of 150-minutes of moderate-vigorous exercise weekly based on patient-to-patient resource availability (eg. neighborhood walk, body-weight exercises). It will target moderate intensity (11-13 on the Borg Rating of perceived exertion scale) and will be adjusted throughout the program as required. It will target aerobic, strength and inspiratory muscle training (IMT). Participants will receive a logbook where the exercise specialist will prescribe the intensity, type, time, and frequency of aerobic, strength and IMT exercises. Each time the participant performs the prescribed home-based exercises they will register their activity in the logbook provided. Exercise specialist will review the logbook every week and will adjust the home-based exercise plan accordingly to ensure both safety and exercise progression.

Prehabilitation arm

Smoking cessation will be provided through motivational interviewing with a counselor who will assess participant's smoking status, willingness and readiness to quit and provide prescriptions for nicotine replacement therapy in combination with non-nicotinic pharmacotherapy (Varenicline, Buprorprion) as appropriate

Prehabilitation arm

Nutritional counseling will be provided through consultation with a registered dietician. Participants will be educated on correct portion sizes, building a balanced plate, learning sources and importance of protein, importance of timing and spacing of meals, along with practicing mindful eating. Promotion and encouragement of dietary changes to ensure balanced intake with adequate protein, weight management, and the regulation of blood glucose will be discussed. Possible barriers to attain the proposed dietary changes and ways to overcome them will also be discussed along with the importance of perioperative nutrition. Based on estimated habitual protein intake, participants will receive a tailored dietary advice aiming a total protein intake of 1,2-1,5g /kg daily, unless contraindicated. Also, participants will be recommended to evenly 'spread' their protein intake over 3 meals with a minimum of 25-30 gram of protein/ meal.

Prehabilitation arm

Participants will receive one hourly session of psychological intervention called "surgical stress tolerance training" with a trained counselor. In this session the psychosocial specialist will address the patient's anxieties, coping strategies, and post-operative expectations, with the goal of optimizing psychological well-being and ways of coping with surgery. The importance of the patient's active participation in the preparation for surgery and healing process will also be discussed. All participants will be given instructions on relaxation and deep breathing techniques.

Prehabilitation arm

Patient education will be provided through virtual consultations with a vascular surgery nurse practitioner. These consultations will describe to the patient their journey pre and post-operatively, what to expect and what they are likely to experience, both physically and emotionally. These consultations will also ensure participants have a support person at home available for supervision during prehabilitation and available during their recovery. Additionally, they will ensure that their home is organized for their discharge from hospital and if required, an occupational therapy home consultation may be organized.

Prehabilitation arm

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants older than 50 years of age awaiting elective open AAA repair with AAA diameter ≤6.9cm at the Halifax Infirmary Hospital between January 2025-December 2025. Participants must have the ability to give individual informed consent.

You may not qualify if:

  • Participants undergoing thoracic, thoracoabdominal and/or perivisceral AAA repair.
  • Participants with ruptured or symptomatic AAA.
  • Participants with AAA maximal diameter ≥7cm.
  • Physical inability to exercise: severe osteoarthritis, musculoskeletal or neurological impairment that precludes exercise.
  • Contraindication to exercise: rest systolic blood pressure ≥ 180 mmHg and/or diastolic ≥ 100 mmHg, uncontrolled atrial or ventricular arrythmias or proven exercise induced arrhythmias, unstable angina, unstable or acute heart failure, severe symptomatic valvular stenosis, dynamic left ventricular outflow tract obstruction or other comorbidities that imply clinical instability.
  • Inability to have a support person present during exercise therapy.
  • Cognitive impairment that would impede understanding of study procedures or informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Aortic Aneurysm, Abdominal

Interventions

Preoperative ExerciseExercise TherapyPsychosocial InterventionPatient Education as Topic

Condition Hierarchy (Ancestors)

Aortic AneurysmAneurysmVascular DiseasesCardiovascular DiseasesAortic Diseases

Intervention Hierarchy (Ancestors)

Perioperative CarePatient CareTherapeuticsSurgical Procedures, OperativeExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaHealth ServicesHealth Care Facilities Workforce and ServicesRehabilitationAftercareContinuity of Patient CarePhysical Therapy ModalitiesPsychotherapyBehavioral Disciplines and ActivitiesHealth EducationPreventive Health Services

Central Study Contacts

Samuel Jessula, MDCM, MSc, FRCSC

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor in Surgery, Division of Vascular Surgery

Study Record Dates

First Submitted

January 29, 2025

First Posted

February 17, 2025

Study Start

March 1, 2025

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

February 17, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

IPD will not be shared to protect patient privacy.