Non-Invasive Positive airway Pressure thErapy to Reduce Postoperative Lung complications following Upper abdominal Surgery (NIPPER PLUS): protocol for a single-centre, pilot, randomised controlled trial

PHYSIO+++: protocol for a pilot randomised controlled trial assessing the feasibility of physiotherapist-led non-invasive ventilation for patients with hypoxaemia following abdominal surgery

INTRODUCTION

Few clinical trials have investigated physiotherapy interventions to treat hypoxaemia following abdominal surgery. The objective of this study is to determine the feasibility and safety of conducting a clinical trial of physiotherapist-led non-invasive ventilation (NIV).

METHODS AND ANALYSIS

This single-centre, 50-patient, parallel-group, assessor blinded, pilot feasibility randomised controlled trial with concealed allocation will enrol spontaneously ventilating adults with hypoxaemia within 72 hours of major abdominal surgery. Participants will receive either (1) usual care physiotherapy of a single education session (talk), daily walking of 10-15 min (walk) and four sessions of coached deep breathing and coughing (breathe) or (2) usual care physiotherapy plus four 30 min sessions of physiotherapist-led NIV delivered over 2 postoperative days. Primary feasibility and safety outcome measures are; number of eligible patients recruited per week, total time of NIV treatment delivered, acceptability of treatments to patients and clinicians and incidence of adverse events. Secondary feasibility outcomes include measures of recruitment and treatment adherence. Exploratory outcome measures include change in respiratory parameters, postoperative pulmonary complications, length of hospital stay, health-related quality of life, postoperative activity levels and mortality.

ETHICS AND DISSEMINATION

Ethics approval has been obtained from the relevant institution. Results will be published to inform future research.

TRIAL REGISTRATION NUMBER

ACTRN12622000839707.

Intensive physical therapy after emergency laparotomy: Pilot phase of the Incidence of Complications following Emergency Abdominal surgery Get Exercising randomized controlled trial

BACKGROUND

Postoperative pneumonia and delayed physical recovery are significant problems after emergency laparotomy. No randomized controlled trial has assessed the feasibility, safety, or effectiveness of intensive postoperative physical therapy in this high-risk acute population.

METHODS

The internal pilot phase of the Incidence of Complications after Emergency Abdominal Surgery: Get Exercising (ICEAGE) trial was a prospective, randomized controlled trial that evaluated the feasibility, safety, and clinical trial processes of providing intensive physical therapy immediately following emergency laparotomy. Fifty consecutive patients were recruited at the principal participating hospital and randomly assigned to standard-care or intensive physical therapy of twice daily coached breathing exercises for 2 days and 30 minutes of daily supervised rehabilitation over the first 5 postoperative days.

RESULTS

Interventions were provided exactly as per protocol in 35% (78 of 221 patients) of planned treatment sessions. Main barriers to protocol delivery were physical therapist unavailability on weekends (59 of 221 patients [27%]), awaiting patient consent (18 of 99 patients [18%]), and patient fatigue (26 of 221 patients [12%]). Despite inhibitors to treatment delivery, the intervention group still received twice as many breathing exercise sessions and four times the amount of physical therapy over the first 5 postoperative days (23 minutes [interquartile range, 12-29 minutes] vs. 86 minutes [interquartile range, 53-121 minutes]; p < 0.001). One adverse event was reported from 78 rehabilitation sessions (1.3%), which resolved fully on cessation of activity without escalation of medical care.

CONCLUSION

Intensive postoperative physical therapy can be delivered safely and successfully to patients in the first week after emergency laparotomy. The ICEAGE trial protocol resulted in intervention group participants receiving more coached breathing exercises and spending significantly more time physically active over the first 5 days after surgery compared with standard care. It was therefore recommended to progress into the multicenter phase of ICEAGE to definitively test the effect of intensive physical therapy to prevent pneumonia and improve physical recovery after emergency laparotomy.

LEVEL OF EVIDENCE

Therapeutic/Care Management; Level II.

Validity and Utility Testing of a Criteria-led Discharge Checklist to Determine Post-operative Recovery after Abdominal Surgery: an International Multicentre Prospective Cohort Trial

BACKGROUND

Criteria-led discharge (CLD) has promising potential to reduce unnecessary hospital stay after abdominal surgery; however, the validity and utility of CLD is uncertain as studies are limited to small single-centre studies involving predominantly elective colorectal surgery.

METHODS

This prospective international multicentre cohort study explored the relationship between a CLD checklist, post-operative recovery, and hospital length of stay using patient-level data from four clinical trials involving 1071 adults undergoing all types of emergency and elective abdominal surgery at five hospitals across Australia and New Zealand. Patients were assessed daily for 21 post-operative days using a standardised CLD checklist. Surgeons and hospital clinicians were masked to findings. Criterion, construct, and content validity of the checklist to accurately reflect discharge decisions by surgical teams, assess physiological recovery, and encompass parameters signalling physiological readiness to discharge were tested. Potential utility of CLD to minimise unnecessary hospital stay was assessed by comparing day of readiness to discharge to actual day of discharge.

RESULTS

The CLD checklist had concordance with existing discharge planning practices and accurately measured a longer post-operative recovery in more complex clinical situations. The CLD checklist in its current format did not detect all legitimate medical and surgical reasons necessitating a continued stay in hospital. Day of readiness to discharge was 0.8 days (95% CI 0.7 to 0.9, p < 0.001) less than actual day of discharge.

CONCLUSION

A CLD checklist has excellent criterion and construct validity in measuring physiological recovery following all types of major elective and emergency abdominal surgery. Content validity could be improved. The use of CLD has the potential to reduce unnecessary hospital stay although the safety of discharging patients according to the criteria requires investigation prior to implementation.

TRIAL REGISTRATION

Trials were prospectively registered at the Australian New Zealand Clinical Trials Registry (LIPPSMAck POP 12613000664741, ICEAGE 12615000318583, PLASTIC 12619001344189, NIPPER PLUS 12617000269336).