Effects of a physiotherapic program in patients on veno-venous extracorporeal membrane oxygenation: an 8-year single-center experience

Metabolic support for patients on extra-corporeal membrane oxygenation

PURPOSE OF REVIEW

The purpose of the review is to summarize recent research on metabolic support during extracorporeal membrane oxygenation. In this review, we cover the evidence on nutritional supplementation, both the route of supplementation, timing of initiation of supplementation as well as quantities of supplementation needed. In addition, we discuss the recent trend in awake extracorporeal membrane oxygenation (ECMO) and its benefits to patients.

RECENT FINDINGS

As ECMO use continues to increase over the last few years, for both cardiovascular as well as respiratory failure, the need to optimize the metabolic states of patients has arisen. Increasing evidence has pointed towards this hitherto unexplored domain of patient care having a large impact on outcomes. Additionally, strategies such as awake ECMO for select patients has allowed them to preserve muscle mass which could aid in a faster recovery.

SUMMARY

There is a role of optimal metabolic support in the early recovery of patients on ECMO that is currently under-recognized. Future directions of research that aim to improve post ECMO outcomes must focus on this area.

Physical Rehabilitation and Mobilization in Patients Receiving Extracorporeal Life Support: A Systematic Review

OBJECTIVES

We planned to synthesize evidence examining the potential efficacy and safety of performing physical rehabilitation and/or mobilization (PR&M) in adult patients receiving extracorporeal life support (ECLS).

DATA SOURCES

We included any study that compared PR&M to no PR&M or among different PR&M strategies in adult patients receiving any ECLS for any indication and any cannulation. We searched seven electronic databases with no language limitations.

STUDY SELECTION AND DATA EXTRACTION

Two reviewers, independently and in duplicate, screened all citations for eligibility. We used the Cochrane Risk of Bias 2 and Cochrane Risk Of Bias In Non-randomized Studies of Interventions tools to assess individual study risk of bias. Although we had planned for meta-analysis, this was not possible due to insufficient data, so we used narrative and tabular data summaries for presenting results. We assessed the overall certainty of the evidence for each outcome using the Grading of Recommendations Assessment, Development, and Evaluation framework.

DATA SYNTHESIS

We included 17 studies that enrolled 996 patients. Most studies examined venovenous extracorporeal membrane oxygenation (ECMO) and/or venoarterial ECMO as a bridge to recovery in the ICU. We found an uncertain effect of high-intensity/active PR&M on mortality, duration of mechanical ventilation, ICU length of stay, hospital length of stay, or quality of life compared with low-intensity/passive PR&M in patients receiving ECLS (very low certainty due to very serious imprecision). There was similarly an uncertain effect on safety events including clinically important bleeding, spontaneous intracerebral hemorrhage, limb ischemia, accidental decannulation, or ECLS circuit dysfunction (very low certainty due to very serious risk of bias and imprecision).

CONCLUSIONS

Based on the currently available summary of evidence, there is an uncertain effect of high-intensity/active PR&M on patient important outcomes or safety in patients receiving ECLS. Despite indirect data from other populations suggesting potential benefit of high-intensity PR&M in the ICU; further high-quality randomized trials evaluating the benefits and risks of physical therapy and/or mobilization in this population are needed.

Rehabilitation for adult patients undergoing extracorporeal membrane oxygenation

BACKGROUND AND PURPOSE

Current information on the latest rehabilitative practices is limited, with previous reviews only covering data up to October 2021, and some considering only patients on awake ECMO or with COVID-19. This review aims to present a concise overview of the latest findings on rehabilitation and highlight emerging trends for patients undergoing ECMO support.

METHODS

This integrative review was conducted by searching the National Library of Medicine - PubMed database. Two different search strings "extracorporeal membrane oxygenation" AND "rehabilitation" and "extracorporeal membrane oxygenation" AND "physiotherapy" were used to search the published literature. Articles that did not describe rehabilitation techniques, editorials, conference proceedings, letters to editor, reviews and research protocols were excluded. Studies conducted on pediatric populations were also excluded. The search process was completed in December 2023.

RESULTS

Thirteen articles were included in the final analysis. Eight hundred and thirty-nine patients aged between 27 and 63 years were included; 428 were men (51%). In 31% of the included studies, patients had COVID-19; nevertheless, rehabilitative activities did not differ from non-COVID-19 patients. In most studies, rehabilitation commenced within the first 48-96 h and consisted of progressive exercise and out-of-bed activities such as sitting, standing and walking.

CONCLUSION

Current practice focuses on rehabilitative protocols that incorporate exercise routines with progressive intensity, greater emphasis on out-of-bed activities, and a multidisciplinary approach to patient mobilization.

Early rehabilitation and mobilisation of neonatal and paediatric extracorporeal membrane oxygenation patients: A UK and Ireland consensus document

Despite increasing early rehabilitation and mobilisation (ERM) in paediatric intensive care, current evidence for ERM of neonatal and paediatric patients receiving extracorporeal membrane oxygenation (ECMO) is limited. The proposed benefits of ERM in neonatal and paediatric ECMO patients are multifaceted, including reduced immobility related issues and maintenance of functional ability. However, ECMO presents additional safety and logistical challenges, and currently there are no published neonatal or paediatric guidelines. A consensus document was developed to provide guidance for ERM with neonatal and paediatric ECMO patients. The document was developed by specialist physiotherapists from nine ECMO centres within the UK and Ireland, together with the UK Paediatric Critical Care Society ECMO group and members of the multidisciplinary team. The document covers key considerations and practicalities for completing ERM in this population including, acuity level measurement, activity level guidance, safety and risk assessment, and goal setting. Risk assessment and safety checklist bedside tools are also included and designed to be adapted as required to meet specific unit policies and protocols.

Physiotherapy for patients on extracorporeal membrane oxygenation support: How, When, and Who. An international EuroELSO survey

BACKGROUND AND PURPOSE

Extracorporeal membrane oxygenation (ECMO) continues to play an essential role in organ support in cardiogenic shock or acute respiratory distress syndrome and bridging to transplantation. The main purpose of the present survey was to define which clinical and organizational practices are adopted for the administration of physiotherapy in adult patients undergoing ECMO support worldwide.

METHODS

This international survey was conceived in November 2021. The survey launch was announced at the 10th EuroELSO (European ELSO chapter) Congress, London, May 2022.

RESULTS

The survey returned 32 questionnaires from 29 centers across 14 countries. 17 centers (53.1%) had more than 30 intensive care unit beds available and most (46.8%) were able to care for five to 10 patients on extracorporeal life support simultaneously. The predominant physiotherapist-to-patient ratio was 1:>5 (37.5%); physiotherapy was available 5/7 days and 7/7 days by 31.2% and 25% respectively. Respiratory physiotherapy was not defined by a specific protocol in most centers (46.8%) while 31.2% declared that the treatment commences less than 12 h after sedation is stopped/reduced. Mostly, early physiotherapy in non-cooperative ventilated patients was provided within the first 48 h (68.6%) and consisted of as passive range of motion, in-bed positioning, and splinting. Postural passages and sitting were provided to patients and walking was included in those advanced motor activities which are part of the treatment.

CONCLUSION

Physiotherapy in patients on ECLS is feasible, however substantial variability exists between centers with a trend of delivering not protocolized and understaffed rehabilitation practices.

The Early Mobilization of Patients on Extracorporeal Membrane Oxygenation: A Systematic Review

Patients on extracorporeal membrane oxygenation (ECMO) often require prolonged periods of bed rest owing to the severity of their illness. Care is also required to maintain the position and integrity of the ECMO cannula. However, they experience a range of effects due to prolonged bed rest. This systematic review examined the possible effects of the early mobilization in patients on ECMO. The database PUBMED was searched by using appropriate keywords: "rehabilitation", "mobilization", "ECMO" and "extracorporeal membrane oxygenation". The selection criteria for the article search were the following: (a) studies published in the last five years, (b) descriptive studies, (c) randomized studies, (d) published in the English language and (e) studies in adults. A total of 259 studies were found, 8 of which were finally selected. Most of the studies showed that early intensive physical rehabilitation related to a decrease in in-hospital stay and a reduction in the duration of mechanical ventilation and doses of vasopressors. In addition, improvements in the functional status and rate of mortality were observed along with a reduction in health care costs. Exercise training should be a fundamental part of the management of patients on ECMO.

Awake extracorporeal life support and physiotherapy in adult patients: A systematic review of the literature

OBJECTIVE

The Awake Extracorporeal Life Support (ECLS) practice combined with physiotherapy is increasing. However, available evidence for this approach is limited, with unclear indications on timing, management, and protocols. This review summarizes available literature regarding Awake ECLS and physiotherapy application rates, practices, and outcomes in adults, providing indications for future investigations.

METHODS

Four databases were screened from inception to February 2021, for studies reporting adult Awake ECLS with/without physiotherapy. Primary outcome was hospital discharge survival, followed by Extracorporeal Membrane Oxygenation (ECMO) duration, extubation, Intensive Care Unit stay.

RESULTS

Twenty-nine observational studies and one randomized study were selected, including 1,157 patients (males n = 611/691, 88.4%) undergoing Awake ECLS. Support type was reported in 1,089 patients: Veno-Arterial ECMO (V-A = 39.6%), Veno-Venous ECMO (V-V = 56.8%), other ECLS (3.6%). Exclusive upper body cannulation and femoral cannulation were applied in 31% versus 69% reported cases (n = 931). Extubation was successful in 63.5% (n = 522/822) patients during ECLS. Physiotherapy details were given for 676 patients: exercises confined in bed for 47.9% (n = 324) patients, mobilization until standing in 9.3% (n = 63) cases, ambulation performed in 42.7% (n = 289) patients. Femoral cannulation, extubation and V-A ECMO were mostly correlated to complications. Hospital discharge survival observed in 70.8% (n = 789/1114).

CONCLUSION

Awake ECLS strategy associated with physiotherapy is performed regardless of cannulation approach. Ambulation, as main objective, is achieved in almost half the population examined. Prospective studies are needed to evaluate safety and efficacy of physiotherapy during Awake ECLS, and suitable patient selection. Guidelines are required to identify appropriate assessment/evaluation tools for Awake ECLS patients monitoring.

Risk Factors for Bleeding Complications during Venovenous Extracorporeal Membrane Oxygenation as a Bridge to Recovery

Background

Bleeding complications during venovenous extracorporeal membrane oxygenation (V‐V ECMO) can be critical. However, there is limited information on the associated risk factors. This study investigated the risk factors for bleeding complications during V‐V ECMO as a bridge to recovery.

Methods

This single‐center retrospective study enrolled 59 patients (bleeding and non‐bleeding groups) who received V‐V ECMO from 2012 to 2020, to evaluate whether peak activated partial thromboplastin time (APTT) value, lowest platelet count, and mobilization to sitting on the edge of the bed during V‐V ECMO were risk factors for bleeding complications, defined according to the Extracorporeal Life Support Organization guidelines. Age, sex, body mass index, Sequential Organ Failure Assessment score, and ECMO duration before bleeding complications were covariates in the multivariate logistic regression analysis.

Results

Thirty‐one (53%) participants experienced 36 bleeding complications; the ECMO cannulation site, gastrointestinal tract, and nasopharyngeal region were the most common bleeding sites. The use of transfusion products and length of ECMO and intensive care unit stay were significantly and medical costs were non‐significantly increased in the bleeding group. Peak APTT (odds ratio [OR] 1.03, 95% confidence interval [CI] 1.01–1.05, p < 0.01) was significantly associated whereas the lowest platelet count (OR 0.96, 95% CI 0.82–1.13, p = 0.66) was unassociated with bleeding complications during ECMO. Achieving mobilization (OR 0.14, 95% CI 0.02–1.17, p = 0.07) decreased the trend of risk for bleeding complications.

Conclusions

Peak APTT might be an independent modifiable factor for bleeding complications during V‐V ECMO. The protective effect of mobilization during V‐V ECMO requires further investigation.

Rehabilitation of adult patients on extracorporeal membrane oxygenation: A scoping review

OBJECTIVES

The objective of this study was to conduct a scoping review to comprehensively map the breadth of literature related to the rehabilitation of adult patients whilst on extracorporeal membrane oxygenation (ECMO) and identify gaps and areas for future research.

REVIEW METHOD USED

This review was conducted using recommended frameworks for methods and reporting including the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews.

DATE SOURCES

We searched seven databases from inception to June 2021 and included all study designs and grey literature.

REVIEW METHODS

Eligibility screening was completed by two independent reviewers according to inclusion and exclusion criteria, with any disagreement resolved by consensus or with consultation with a third reviewer. Two independent reviewers extracted data related to intervention characteristics, patient outcomes, feasibility, safety, hospital outcomes, and mortality using a custom-designed piloted form.

RESULTS

Of 8507 records, 185 original studies met inclusion criteria, with the majority being small retrospective studies. Rehabilitation was more commonly reported in patients on veno-venous rather than veno-arterial ECMO. Ambulation was the most commonly reported intervention (51% of studies). Critical gaps were identified including incomplete reporting of the intervention along with heterogeneity in the type and timing of outcome measures. Less than 50% of patients met eligibility criteria to participate, but screening for eligibility was infrequently reported (9% of studies). Delivery of rehabilitation during ECMO may be facilitated by an expert multidisciplinary team, along with a strategy that targets low sedation levels and an upper body cannulation approach.

CONCLUSIONS

Rehabilitation during ECMO is an emerging area of research and mostly consisted of small retrospective single-centre studies. Future research requires more robust methodological designs that include comprehensive screening of potential candidates with reporting of eligibility, more detailed descriptions of the rehabilitation interventions, inclusion of a core outcome set with defined measurement instruments, and consistent timing of outcome measurement.

Electrodiagnostic findings in patients with non-COVID-19- and COVID-19-related acute respiratory distress syndrome

BACKGROUND

Critical illness polyneuropathy and myopathy (CIPNM) is a frequent neurological manifestation in patients with acute respiratory distress syndrome (ARDS) from coronavirus disease 2019 (COVID-19) infection. CIPNM diagnosis is usually limited to clinical evaluation. We compared patients with ARDS from COVID-19 and other aetiologies, in whom a neurophysiological evaluation for the detection of CIPNM was performed. The aim was to determine if there were any differences between these two groups in frequency of CINPM and outcome at discharge from the intensive care unit (ICU).

MATERIALS AND METHODS

This was a single-centre retrospective study performed on mechanically ventilated patients consecutively admitted (January 2016-June 2020) to the ICU of Careggi Hospital, Florence, Italy, with ARDS of different aetiologies. Neurophysiological evaluation was performed on patients with stable ventilation parameters, but marked widespread hyposthenia (Medical Research Council score <48). Creatine phosphokinase (CPK), lactic dehydrogenase (LDH) and mean morning glycaemic values were collected.

RESULTS

From a total of 148 patients, 23 with COVID-19 infection and 21 with ARDS due to other aetiologies, underwent electroneurography/electromyography (ENG/EMG) recording. Incidence of CIPNM was similar in the two groups, 65% (15 of 23) in COVID-19 patients and 71% (15 of 21) in patients affected by ARDS of other aetiologies. At ICU discharge, subjects with CIPNM more frequently required ventilatory support, regardless the aetiology of ARDS.

CONCLUSION

ENG/EMG represents a useful tool in the identification of the neuromuscular causes underlying ventilator wean failure and patient stratification. A high incidence of CIPNM, with a similar percentage, has been observed in ARDS patients of all aetiologies.

Feasibility, safety, and resource utilisation of active mobilisation of patients on extracorporeal life support: a prospective observational study

Background

There is scarce evidence on the feasibility, safety and resource utilisation of active mobilisation in critically ill patients on extracorporeal life support (ECLS).

Methods

This prospective observational single-centre study included all consecutive critically ill patients on ECLS admitted to an academic centre in Germany over a time period of one year. The level of mobilisation was categorised according to the ICU Mobility Scale (IMS). Primary outcome was complications during mobilisation.

Results

During the study period, active mobilisation with an activity level on the IMS of ≥ 3 was performed at least on one occasion in 43 out of 115 patients (37.4%). A total of 332 mobilisations with IMS ≥ 3 were performed during 1242 ECLS days (26.7%). ECLS configurations applied were va-ECMO (n = 63), vv-ECMO (n = 26), vv-ECCO₂R (n = 12), av-ECCO₂R (n = 10), and RVAD (n = 4). Femoral cannulation had been in place in 108 patients (93.9%). The median duration of all mobilisation activities with IMS ≥ 3 was 130 min (IQR 44–215). All mobilisations were undertaken by a multi-professional ECLS team with a median number of 3 team members involved (IQR 3–4). Bleeding from cannulation site requiring transfusion and/or surgery occurred in 6.9% of actively mobilised patients and in 15.3% of non-mobilised patients. During one mobilisation episode, accidental femoral cannula displacement occurred with immediate and effective recannulation. Sedation was the major reason for non-mobilisation.

Conclusions

Active mobilisation (IMS ≥ 3) of ECLS patients undertaken by an experienced multi-professional team was feasible, and complications were infrequent and managed successfully. Larger prospective multicentre studies are needed to further evaluate early goal directed sedation and mobilisation bundles in patients on ECLS.