Precision implementation of early ambulation in elderly patients undergoing off-pump coronary artery bypass graft surgery: a randomized-controlled clinical trial

Association of active mobilisation variables with adverse events and mortality in patients requiring mechanical ventilation in the intensive care unit: a systematic review and meta-analysis

BACKGROUND

Mobilisation during critical illness is now included in multiple clinical practice guidelines. However, a large, randomised trial and systematic review have recently identified an increased probability of adverse events and mortality in patients who received early active mobilisation in the intensive care unit (ICU). We aimed to determine the effects of mobilisation compared with usual care on adverse events and mortality in an acute ICU setting. In subgroup analyses, we specifically aimed to investigate possible sources of harm, including the timing and duration of mobilisation achieved, ventilation status, and admission diagnosis.

METHODS

In this systematic review with frequentist and Bayesian analyses, we searched MEDLINE, Embase, Cochrane Central Register of Controlled Trials, CINAHL, SPORTDiscus, SCOPUS, Web of Science, and PEDro electronic databases, as well as clinical trial registries (ICTRP and ClinicalTrials.gov), from inception to March 16, 2023, without language restrictions. Eligible studies were randomised controlled trials that examined active mobilisation compared with either no mobilisation or mobilisation commencing later, or at a lower frequency or intensity, in adults who were critically ill during or after a period of mechanical ventilation in an acute ICU setting. Two authors independently screened reports, extracted data, and assessed the risk of bias using the Cochrane risk-of-bias tool (version 1). The primary outcome was the number of adverse events that occurred during the implementation of mobilisation, with the effect of mobilisation on mortality being the secondary outcome. Risk ratios (RRs) with 95% CIs were calculated in R (version 4.0.3) using random-effects modelling, with Bayesian analysis completed to calculate the probability of treatment harm (ie, RR >1). Subgroup analyses were completed to investigate the association of various factors of mobilisation on adverse events and mortality: duration of mobilisation (longer [≥20 min per day] vs shorter [<20 min per day]), timing of commencement (early [≤72 h from ICU admission] vs late [>72 h from ICU admission]), ventilation status at commencement (all patients mechanically ventilated vs all patients extubated), and ICU admission diagnosis (surgical vs medical). This study was registered with PROSPERO, CRD42022369272.

FINDINGS

After title and abstract screening of 14 440 studies and review of 466 full texts, 67 trials with 7004 participants met inclusion criteria, with 59 trials contributing to the meta-analysis. Of the 67 included studies, 15 (22%) did not mention adverse events and 13 (19%) reported no adverse events occurring across the trial period. Overall, we found no effect of mobilisation compared with usual care on the occurrence of adverse events (RR 1·09 [95% CI 0·69-1·74], p=0·71; I2 91%; 32 731 events, 20 studies; very low certainty), with a 2·96% occurrence rate (693 events in 23 395 intervention sessions; 25 studies). Mobilisation did not have any effect on mortality (RR 0·98 [95% CI 0·87-1·12], p=0·81; I2 0%; n=6218, 58 studies; moderate certainty). Subgroup analysis was hindered by the large amount of data that could not be allocated and analysed, making the results hypothesis generating only.

INTERPRETATION

Implementation of mobilisation in the ICU was associated with a less than 3% chance of an adverse event occurring and was not found to increase adverse events or mortality overall, providing reassurance for clinicians about the safety of performing this intervention. Subgroup analyses did not clearly identify any specific variable of mobilisation implementation that increased harm.

FUNDING

None.

Early goal-directed mobilization in patients with acute type A aortic dissection: A randomized controlled trial

OBJECTIVE

To determine the safety and efficacy of early postoperative mobilization in patients who have undergone surgical repair of acute type A aortic dissection.

DESIGN

Randomized controlled trial.

SETTING

Heart Medical Center.

SUBJECTS

Seventy-seven patients with acute type A aortic dissection were assessed.

INTERVENTION

Patients were randomly allocated into: (1) the control group (usual care) (n  =  38) and (2) the intervention group (early goal-directed mobilization) (n  =  39).

MAIN MEASURES

The primary outcome was the patient's functional status. The secondary outcomes included vital signs, serious adverse events, muscle strength, intensive care unit-acquired weakness, grip strength, duration of mechanical ventilation, length of stay, readmission rate, and health-related quality of life after 3 months.

RESULTS

The vital signs of the patients were within the tolerable ranges during the entire intervention. No serious exercise-related adverse events were observed in the intervention group. The Barthel Index score (P  =  0.013), Medical Research Council score (P  =  0.001), grip strength (P  =  0.001), and health-related quality of life (P  =  0.001) were higher in the intervention group. Intensive care unit acquired weakness (P  =  0.019), duration of mechanical ventilation (P  =  0.002), intensive care unit stay (P  =  0.002), and total length of stay (P  =  0.010) were lower in the intervention group. Patients in the intervention group had a higher physical health-related quality of life (P  =  0.015) at 3 months post-surgery. There was no difference in readmission rates.

CONCLUSIONS

Delivery of early goal-directed mobilization in acute type A aortic dissection was safe and facilitated the recovery of daily living ability, shorter hospital stay, and improved quality of life after discharge.

Guidelines on perioperative optimization protocol for the adult patient 2023

OBJECTIVE

The French Society of Anesthesiology and Intensive Care Medicine [Société Française d'Anesthésie et de Réanimation (SFAR)] aimed at providing guidelines for the implementation of perioperative optimization programs.

DESIGN

A consensus committee of 29 experts from the SFAR was convened. A formal conflict-of-interest policy was developed at the outset of the process and enforced throughout. The entire guidelines process was conducted independently of any industry funding. The authors were advised to follow the principles of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) system to guide assessment of quality of evidence.

METHODS

Four fields were defined: 1) Generalities on perioperative optimization programs; 2) Preoperative measures; 3) Intraoperative measures and; 4) Postoperative measures. For each field, the objective of the recommendations was to answer a number of questions formulated according to the PICO model (population, intervention, comparison, and outcomes). Based on these questions, an extensive bibliographic search was carried out using predefined keywords according to PRISMA guidelines and analyzed using the GRADE® methodology. The recommendations were formulated according to the GRADE® methodology and then voted on by all the experts according to the GRADE grid method. As the GRADE® methodology could have been fully applied for the vast majority of questions, the recommendations were formulated using a "formalized expert recommendations" format.

RESULTS

The experts' work on synthesis and application of the GRADE® method resulted in 30 recommendations. Among the formalized recommendations, 19 were found to have a high level of evidence (GRADE 1±) and ten a low level of evidence (GRADE 2±). For one recommendation, the GRADE methodology could not be fully applied, resulting in an expert opinion. Two questions did not find any response in the literature. After two rounds of rating and several amendments, strong agreement was reached for all the recommendations.

CONCLUSIONS

Strong agreement among the experts was obtained to provide 30 recommendations for the elaboration and/or implementation of perioperative optimization programs in the highest number of surgical fields.

A Step Forward for Intensive Care Unit Patients: Early Mobility Interventions and Associated Outcome Measures

Background

Critical illness survivors have impairments across physical, psychological, and cognitive health domains known as post–intensive care syndrome. Although physical activity can improve outcomes across all health domains, most intensive care unit early mobility studies focus solely on physical outcomes.

Objective

To explore the role of early mobility for adult patients in the intensive care unit by analyzing early mobility intervention studies with physical, psychological, or cognitive outcome measures.

Methods

This integrative review used Whittemore and Knafl’s methodology and Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. CINAHL, Embase, PubMed, PsycINFO, and Scopus databases were searched for primary research articles published from 2005 through 2021 on adult intensive care unit early mobility interventions evaluated by physical, cognitive, or psychological outcome measures during or after intervention delivery. Interventions comprising only passive mobility were excluded.

Results

Of 1009 articles screened, 20 were included. Variations in outcome measures, measurement timing, instruments, and control groups made synthesis difficult. No study evaluated an intervention using outcome measures from all 3 health domains. Five studies measured physical and cognitive outcomes; 6 studies measured physical and psychological outcomes.

Conclusion

Early mobility is primarily addressed objectively and unidimensionally, limiting understanding of the implications of early mobility for patients. Post–intensive care syndrome prevention begins in the intensive care unit; early mobility is a promising intervention for targeting multiple risk factors. Studies that measure outcomes in all health domains during or after early mobility are needed to better evaluate the comprehensive effects of early mobility.

Attenuating Muscle Mass Loss in Critical Illness: the Role of Nutrition and Exercise

PURPOSE OF REVIEW

Impaired recovery following an intensive care unit (ICU) admission is thought related to muscle wasting. Nutrition and physical activity are considered potential avenues to attenuate muscle wasting. The aim of this review was to present evidence for these interventions in attenuating muscle loss or improving strength and function.

RECENT FINDINGS

Randomised controlled trials on the impact of nutrition or physical activity interventions in critically ill adult patients on muscle mass, strength or function are presented. No nutrition intervention has shown an effect on strength or function, and the effect on muscle mass is conflicting. RCTs on the effect of physical activity demonstrate conflicting results; yet, there is a signal for improved strength and function with higher levels of physical activity, particularly when commenced early. Further research is needed to elucidate the impact of nutrition and physical activity on muscle mass, strength and function, particularly in combination.

Effect of Early Exercise Rehabilitation on Cardiopulmonary Function and Quality of Life in Patients after Coronary Artery Bypass Grafting

The purpose of this study was to analyze the effect of early exercise rehabilitation on cardiopulmonary function and quality of life in patients after coronary artery bypass grafting (CABG). Eighty patients with coronary heart disease who underwent CABG from April 2020 to April 2022 were divided into the study group (n = 40) and control group (n = 40). The control group was given conventional treatment and routine care after CABG, and the study group received early exercise rehabilitation according to the control group. The cardiac function indexes, 6-minute walking test (6MWT), and cardiopulmonary function indexes and quality of life of the two groups were compared before and after the intervention, and the length of hospitalization and hospital costs as well as the occurrence of pulmonary complications in both groups were recorded. Left ventricular ejection fraction (LVEF) was significantly higher (P < 0.05), and left ventricular end-diastolic dimension (LVEDD) and left ventricular end-systolic diameter (LVESD) were significantly lower (P < 0.05) in the study group than in the control group after the intervention; 6MWT, maximal oxygen consumption (VO2max), and anaerobic threshold (AT) were significantly higher (P < 0.05) in the study group than in the control group after the intervention; physical function (PF), role physical (RP), general health (GH), and role emotional (RE) dimension scores were significantly higher (P < 0.05) in the study group compared with the control group after the intervention The differences in the scores of the remaining dimensions were not statistically significant (P > 0.05); the total hospitalization time in the test group was significantly shorter than that in the control group (P < 0.05), the hospitalization cost was significantly less than that in the control group (P < 0.05), and the total incidence of pulmonary infection and hypoxemia was significantly lower than that in the control group (P < 0.05). Early exercise rehabilitation can effectively improve cardiopulmonary function and exercise tolerance and improve the quality of life of patients after CABG.

Determining Factors for Independent Walking in Patients Undergoing Cardiovascular Surgery: Differences between Coronary Artery Bypass Grafting, Heart Valve Surgery, and Aortic Surgery

Physical deconditioning often occurs during the acute phase after cardiovascular surgery, and unassisted walking is required to achieve independence, to manage cardiac diseases, and to prevent recurrences. This study aims to investigate the characteristics of independent walking after cardiovascular surgery. We conducted a retrospective cohort study in patients who underwent cardiovascular surgeries (total of 567 patients): 153 in the coronary artery bypass grafting (CABG) group, 312 in the heart valve surgery group, and 102 in the aortic surgery group. We evaluated the effect of each surgery group on the cardiac rehabilitation (CR) progression. The factors associated with independent walking were age, renal diseases, intensive care unit (ICU) length of stay, and post-operative respiratory complications in the CABG group. In the heart valve surgery group, the factors were New York Heart Association functional classification, renal and respiratory diseases, ICU length of stay, duration of mechanical ventilatory support, and post-operative cardiovascular and respiratory complications. In the aortic surgery group, these were ICU length of stay and acute kidney injury. The CR progression in patients who underwent aortic surgery was significantly longer than those who underwent CABG and heart valve surgery (p < 0.001). New intervention strategies are needed for patients with prolonged ICU stays.