Prognostic Impact of Physical Activity Patterns After Percutaneous Coronary Intervention (PIPAP Study) (PIPAP)

  • End date
    Jul 26, 2023
  • participants needed
  • sponsor
    University Hospital Inselspital, Berne
Updated on 26 May 2022
percutaneous coronary intervention
bypass graft
cardiac rehabilitation


Physical activity monitoring after coronary bypass grafting and other major surgeries has been found to be predictive for hospital readmission and adverse outcome. In patients after percutaneous coronary intervention (PCI) it has been found that a patient reported activity score is predictive of 3 year major adverse coronary event (MACE). It is not known whether physical activity shortly after discharge from PCI is predictive of one-year MACE. Early identification of patients at increased risk of MACE would facilitate the intensification of preventive strategies in these patients.

Primary objective is the quantification of physical activity (daily steps) during the first two weeks after hospital discharge as a predictor for MACE at one year. Secondary objectives are: 1) Comparison between daily steps and objectively measured activity counts (divided in time spent in moderate-to-vigorous activity, light activity and sedentary activity), as well as patient reported activity; 2) Association of daily steps after one year with reaching targets for systolic blood pressure, low-density lipoprotein cholesterol (LDL-C), body mass index (BMI) and glycated haemoglobin (HbA1c); 3) Comparison of daily steps after hospital discharge and MACE between non cardiac rehabilitation (CR), conventional hospital based CR, tele-CR and modular CR participants; 4) Comparison of daily steps at one year after hospital discharge in different CR groups.


Study design

This is a monocentric open label explorative study (with primary objective to assess the predictive value of daily steps for MACE). Patients will be asked to wear an activity tracker for two weeks following hospital discharge. Patients who participate in any form of CR in our institution and attend the routine check-up 12 month after PCI in our institution will be asked to wear the activity tracker again for two weeks.

Study intervention

Patients will be informed about the study by the prevention team (advanced nurse practitioners) usually on the day of discharge from PCI during the routine visit by this team to inform patients about the different options of CR. Patients will be provided with an activity tracker in the form of a wrist band, the patient information sheet including informed consent (IC), the International Physical Activity Questionnaires Short-Form (IPAQ-SF) and an addressed and prepaid envelope. They are asked to read the patient information when arrived at home, sign the IC when willing to participate and wear the wrist band continuously for two weeks after hospital discharge. After that, they should send the wrist band, the filled in IPAQ-SF and signed IC in the provided envelope to our institute. If they are unwilling to participate, they can send the activity tracker back straight away. Patients attending the clinical routine check-up after 12 months in our institution will be asked to wear the activity tracker again for two weeks.

Condition Physical Activity, Coronary Artery Disease
Treatment Step counting
Clinical Study IdentifierNCT04663373
SponsorUniversity Hospital Inselspital, Berne
Last Modified on26 May 2022


Yes No Not Sure

Inclusion Criteria

Eligible for ambulatory cardiac rehabilitation (CR, patients not living in nursing home, not enrolling in stationary CR)
Signing informed consent

Exclusion Criteria

Staged PCI
Previous participation in this study
Inability or contraindications to undergo CR (nursing home residence, stationary CR, orthopedic or neurologic impairment prohibiting physical exercise, psychiatric conditions)
Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc
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