The use of diaphragm and lung ultrasound in acute respiratory physiotherapy practice and the impact on clinical decision-making: A systematic review and meta-analysis.

OBJECTIVES: Diaphragm and lung ultrasound (DLUS) is emerging as an important point-of-care respiratory assessment tool and is being used in clinical care by trained respiratory physiotherapists, both in Australia and internationally. However, the impact of DLUS on physiotherapists' clinical decision-making remains largely unknown. This systematic review aims to review the evidence for implementing DLUS in acute respiratory physiotherapy management. REVIEW METHOD USED: We conducted a systematic review. DATA SOURCES: We searched PubMed, Embase, CINAHL, CENTRAL, and Scopus from inception to 18th April 2023 for all original clinical studies reporting on the physiotherapy clinical decision-making, following a DLUS examination and/or where DLUS was used to evaluate the effect of respiratory physiotherapy, in adults over 18 years of age. REVIEW METHODS: Two authors independently performed study selection and data extraction. Individual study risk of bias was assessed using the Newcastle-Ottawa Scale, and certainty in outcomes was assessed using the Grading of Recommendations, Assessment, Development, and Evaluations framework. RESULTS: A total of seven observational studies (n = 299) were included, all of which were in the intensive care setting. DLUS changed physiotherapy diagnosis, management, and treatment in 63.9% (50-64%), 16.8% (15-50%), and 48.4% (25-50%) of patients, respectively. There was a significant improvement in the lung ultrasound score post respiratory physiotherapy treatment (mean difference -2.31, 95% Confidence Interval (95% CI) -4.42 to -0.21; very low certainty) compared to before respiratory physiotherapy treatment. Moderate risk of bias was present in six studies, and there was variance in the DLUS methodology across included studies. CONCLUSIONS: The findings of this review suggest DLUS influences physiotherapy clinical decision-making and can be used to evaluate the effects of acute respiratory physiotherapy treatment. However, the available data is limited, and further high-quality studies are needed. TRIAL REGISTRATION: This study is registered with the International Prospective Register of Systematic Reviews; CRD42023418312.

Benefits and risks of ventilator hyperinflation in mechanically ventilated intensive care patients: A systematic review and meta-analysis.

OBJECTIVES: Patients requiring mechanical ventilation in the intensive care unit (ICU) have diminished respiratory defences and are at high risk of respiratory compromise, leading to an increased risk of pulmonary infection and prolonged ventilation. Ventilator hyperinflation (VHI) is an airway clearance technique used by physiotherapists and is suggested to improve respiratory mechanics. The objective of this study was to review the evidence for the benefits and risks of VHI in intubated and mechanically ventilated patients in the ICU. REVIEW METHOD USED: We conducted a systematic review. DATA SOURCES: We searched PubMed, Embase, CINAHL, CENTRAL, and Scopus from inception to 31st May 2022 for all randomised control trials evaluating VHI in intubated and mechanically ventilated adults in the ICU. REVIEW METHODS: Two authors independently performed study selection and data extraction. Individual study risk of bias was assessed using the Physiotherapy Evidence Database scale, and certainty in outcomes was assessed using the Grading of Recommendations, Assessment, Development and Evaluations framework. RESULTS: We included 10 studies enrolling 394 patients. Compared to standard care, VHI had significant effects on sputum clearance (Standardise mean difference: 0.36, 95% confidence interval [CI]: 0.12 to 0.61; very low certainty), static pulmonary compliance (mean difference [MD]: 4.77, 95% CI: 2.40 to 7.14; low certainty), dynamic pulmonary compliance (MD: 1.59, 95% CI: 0.82 to 2.36; low certainty) and oxygenation (MD: 0.28, 95% CI: 0.01 to 0.55; low certainty). No significant adverse events or immediate side effects relating to VHI were reported. There is a paucity of data available on the effects of VHI on clinical outcomes including mechanical ventilation duration, ICU length of stay, and mortality. CONCLUSIONS: Our findings suggest VHI has potential short-term respiratory benefits including increased secretion clearance, pulmonary compliance, and oxygenation, with no immediate adverse effects in intubated and mechanically ventilated ICU patients. However, there remains limited data on the longer term influence of VHI on clinical outcomes, and further research to inform clinical practice is needed. REGISTRATION: This study is registered with the International Prospective Register of Systematic Reviews (PROSPERO; CRD42022341421).

Prophylactic Postoperative Noninvasive Ventilation in Adults Undergoing Upper Abdominal Surgery: A Systematic Review and Meta-Analysis.

OBJECTIVES: Postoperative pulmonary complications (PPCs) are a leading cause of morbidity and mortality following upper abdominal surgery. Applying either noninvasive ventilation (NIV) or continuous positive airway pressure (CPAP) in the early postoperative period is suggested to prevent PPC. We aimed to assess whether postoperative NIV or CPAP or both prevent PPCs compared with standard care in adults undergoing upper abdominal surgery, including in those identified at higher PPC risk. Additionally, the different interventions used were evaluated to assess whether there is a superior approach. DATA SOURCES: We searched PubMed, Embase' CINAHL, CENTRAL, and Scopus from inception to May 17, 2021. STUDY SELECTION: We performed a systematic search of the literature for randomized controlled trials evaluating prophylactic NIV and/or CPAP in the postoperative period. DATA EXTRACTION: Two authors independently performed study selection and data extraction. Individual study risk of bias was assessed using the PEDro scale, and certainty in outcomes was assessed using the Grading of Recommendations Assessment, Development, and Evaluation framework. DATA SYNTHESIS: We included 17 studies enrolling 6,108 patients. No significant benefit was demonstrated for postoperative NIV/CPAP to reduce PPC (risk ratio [RR], 0.89; 95% CI, 0.78-1.01; very low certainty), including in adults identified at higher PPC risk (RR, 0.91; 95% CI, 0.77-1.07; very low certainty). No intervention approach was identified as superior, and no significant benefit was demonstrated when comparing: 1) CPAP (RR, 0.90; 95% CI, 0.79-1.04; very low certainty), 2) NIV (RR, 0.68; 95% CI, 0.41-1.13; very low certainty), 3) continuous NIV/CPAP (RR, 0.90; 95% CI, 0.77-1.05; very low certainty), or 4) intermittent NIV/CPAP (RR, 0.66; 95% CI, 0.39-1.10; very low certainty) to standard care. CONCLUSIONS: These findings suggest routine provision of either prophylactic NIV or CPAP following upper abdominal surgery may not be effective to reduce PPCs' including in those identified at higher risk.

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).

Implementation of physiotherapy-led lung ultrasound in the intensive care unit.

The use of lung ultrasound (LUS) in clinical settings is emerging as an important tool in the assessment of lung pathology and/or function and has gained considerable acceptance. LUS is being integrated into clinical care by trained respiratory physiotherapists and has been shown to influence physiotherapists' clinical decision-making in the respiratory management of patients. Considering the use of LUS by physiotherapy is in its infancy and still evolving, there is likely variability in the ability and confidence of physiotherapists to use LUS in clinical practice, both in Australia and internationally. While the UK has had a rapid increase in the number of LUS-accredited physiotherapists (n = 111), the number of LUS-accredited physiotherapists in Australia remains very low (n = 4). There is a growing body of work in the UK on physiotherapy-led LUS in respiratory care, however, there is currently little work published on the practicalities of training and establishing physiotherapy-led LUS in Australia. This report describes the training and implementation of physiotherapy-led LUS in the intensive care unit from a regional hospital perspective.

Development of a physiotherapy-led bronchoscopy service: a regional hospital perspective.

Extended scope of practice (ESoP) and advanced scope of practice (ASoP) physiotherapy roles have been in place in the UK for over 20 years. However, interest in these types of services appears to be only just evolving within Australia. Although ESoP and/or ASoP cardiorespiratory roles in intensive care units (ICU) may be perceived to be more achievable in large metropolitan teaching hospitals, at least 67% of Australian ICUs provide physiotherapy services. Very little has been published on the practicalities (e.g. training pathways, evidence for use and guidelines) of developing advanced or extended scope cardiorespiratory physiotherapy services within Australian ICUs. This report describes the development and implementation of a physiotherapy-led bronchoscopy service from a regional hospital perspective.

Physiotherapist administered, non-invasive ventilation to reduce postoperative pulmonary complications in high-risk patients following elective upper abdominal surgery; a before-and-after cohort implementation study.

OBJECTIVES: To (1) determine whether short, 30-minute sessions of non-invasive ventilation (NIV) is associated with fewer postoperative pulmonary complications (PPC) following elective high-risk upper abdominal surgery and (2) measure feasibility and safety of this intervention when delivered by physiotherapists. DESIGN: Prospective, pre post cohort, observational, single-centre study. SETTING: Primary referral hospital in Australia. PARTICIPANTS: A total of 182 consecutive high-risk elective upper abdominal surgery patients consisting of 101 pre cohort participants compared to 81 post cohort participants. INTERVENTIONS: Both groups received standardised preoperative physiotherapy and early postoperative mobilisation. The post cohort group received five additional 30-minute NIV sessions in the first two postoperative days. MAIN OUTCOME MEASURE: Primary outcome measure was PPC incidence within the first seven postoperative days. Secondary outcomes included feasibility and safety of physiotherapy-led NIV. RESULTS: Incidence of PPC (7% vs 18%, adjusted relative risk 0.24; 95% CI 0.10 to 0.59, p=0.002) was less in the NIV group compared to those who received no NIV. Mean time to first NIV session was 18.6 (SD 11.0) hours with 74% of participants receiving NIV within 24-hours of surgery. There were no major adverse events. CONCLUSION: These findings suggest PPC reduction may be possible with postoperative NIV following high-risk elective upper abdominal surgery. Results should be seen as hypothesis-generating associations only considering the significant limitations to this study. Physiotherapy-led NIV was delivered safely to ICU and ward patients. However, the planned protocol was not feasible and appropriate physiotherapy staffing and/or a multidisciplinary approach may be required to provide this service successfully. TRIAL REGISTRATION: LIPPSMAck POP (Lung Infection Prevention Post Surgery - Major Abdominal - with Pre Operative Physiotherapy) ANZCTR-12613000664741 (for pre cohort group only).

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.

INTRODUCTION: Postoperative pulmonary complications (PPCs) are a common serious complication following upper abdominal surgery leading to significant consequences including increased mortality, hospital costs and prolonged hospitalisation. The primary objective of this study is to detect whether there is a possible signal towards PPC reduction with the use of additional intermittent non-invasive ventilation (NIV) compared with continuous high-flow nasal oxygen therapy alone following high-risk elective upper abdominal surgery. Secondary objectives are to measure feasibility of: (1) trial conduct and design and (2) physiotherapy-led NIV and a high-flow nasal oxygen therapy protocol, safety of NIV and to provide preliminary costs of care information of NIV and high-flow nasal oxygen therapy. METHODS AND ANALYSIS: This is a single-centre, parallel group, assessor blinded, pilot, randomised trial, with 130 high-risk upper abdominal surgery patients randomly assigned via concealed allocation to either (1) usual care of continuous high-flow nasal oxygen therapy for 48 hours following extubation or (2) usual care plus five additional 30 min physiotherapy-led NIV sessions within the first two postoperative days. Both groups receive standardised preoperative physiotherapy and postoperative early ambulation. No additional respiratory physiotherapy is provided to either group. Outcome measures will assess incidence of PPC within the first 14 postoperative days, recruitment ability, physiotherapy-led NIV and high-flow nasal oxygen therapy protocol adherence, adverse events relating to NIV delivery and costs of providing a physiotherapy-led NIV and a high-flow nasal oxygen therapy service following upper abdominal surgery. ETHICS AND DISSEMINATION: Ethics approval has been obtained from the relevant institution and results will be published to inform future multicentre trials. TRIAL REGISTRATION NUMBER: ACTRN12617000269336; Pre-results.