Prehabilitation in thoracic surgery

Multimodal prehabilitation before lung resection surgery: a multicentre randomised controlled trial

BACKGROUND

Respiratory muscle training may improve ventilatory efficiency (VE/VCO2 slope), a strong predictor of postoperative pulmonary complications. We hypothesised that multimodal prehabilitation, incorporating high-intensity respiratory muscle training, before lung resection would reduce postoperative complications and length of hospital stay.

METHODS

We conducted a prospective multicentre, randomised controlled trial (NCT04826575) to examine the effect of prehabilitation in individuals undergoing lung resection. Participants were defined as high-risk for postoperative pulmonary complications if they achieved VE/VCO2 slope ≥33, as determined by cardiopulmonary exercise testing. Participants were then randomised to either usual care or multimodal prehabilitation, which consisted of a 14-day programme of high-intensity respiratory muscle training, smoking cessation, nutritional support, and psychological support. The primary outcome were postoperative pulmonary and cardiovascular complications (pneumonia, atelectasis, respiratory failure necessitating mechanical ventilation, adult respiratory distress syndrome, prolonged air leak).

RESULTS

A total of 122 patients (46% female; age range: 64-75 yr) completed the study. Postoperative pulmonary complications occurred in 20/58 (34%) of patients randomised to multimodal prehabilitation, compared with 35/64 (55%) patients receiving usual care (odds ratio 2.29 [95% confidence interval 1.10-4.77]; P=0.029). Hospital length of stay was shorter after multimodal rehabilitation (9 days [7-11]), compared with patients randomised to receive usual care (7 days [6-9]; P=0.038). After prehabilitation, mean (sd) VE/VCO2 slope decreased from 39 (8) to 36 (9); P=0.01. Prehabilitation also improved patient-reported quality of life measures.

CONCLUSIONS

In high-risk patients undergoing elective lung resection surgery, multimodal prehabilitation, including high-intensity respiratory muscle training to target VE/VCO2, reduced postoperative pulmonary complications and hospital length of stay.

Prediction of postoperative intensive care unit admission with artificial intelligence models in non-small cell lung carcinoma

BACKGROUND

There is no standard practice for intensive care admission after non-small cell lung cancer surgery. In this study, we aimed to determine the need for intensive care admission after non-small cell lung cancer surgery with deep learning models.

METHODS

The data of 953 patients who were operated for non-small cell lung cancer between January 2001 and 2023 was analyzed. Clinical, laboratory, respiratory, tumor's radiological and surgical features were included as input data in the study. The outcome data was intensive care unit admission. Deep learning was performed with the Fully Connected Neural Network algorithm and k-fold cross validation method.

RESULTS

The training accuracy value was 92.0%, the training F1 1 score of the algorithm was 86.7%, the training F1 0 value was 94.2%, and the training F1 average score was 90.5%. The test sensitivity value of the algorithm was 67.7%, the test positive predictive value was 84.0%, and the test accuracy value was 85.3%. Test F1 1 score was 75.0%, test F1 0 score was 89.5%, and test F1 average score was 82.3%. The AUC in the ROC curve created for the success analysis of the algorithm's test data was 0.83.

CONCLUSIONS

Using our method deep learning models predicted the need for intensive care unit admission with high success and confidence values. The use of artificial intelligence algorithms for the necessity of intensive care hospitalization will ensure that postoperative processes are carried out safely using objective decision mechanisms.

Risk factors for postoperative pulmonary complications in non-adenocarcinoma non-small cell lung cancer patients undergoing surgery after neoadjuvant therapy

Background

Neoadjuvant therapy followed by surgery is the recommended treatment for patients with locally advanced lung cancer. No studies have examined the risk factors of postoperative pulmonary complications (PPCs) in this group of patients. The addition of immune checkpoint inhibitors (ICIs) can improve the efficacy of neoadjuvant therapy; however, it is unknown whether ICIs will also increase the PPC incidence. Thus, we conducted this study to identify the predictors of PPCs.

Methods

We reviewed the database of Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University. Patients with non-adenocarcinoma non-small cell lung cancer (non-ADC NSCLC) who underwent surgery after neoadjuvant therapy were included. The clinical information was collected, the PPCs and mortality were evaluated.

Results

The cohort in this study consisted of 108 patients. Among them, 36 had PPCs, and the incidence of PPCs was 33.3% (36/108). The majority of PPCs were prolonged time to chest tube removal and pneumonia. One patient died within 30 days due to serious postoperative complications. The mortality within 30 days was 0.9%. The addition of ICIs to neoadjuvant therapy did not increase the incidence of PPCs, but the operation time was longer in the ICI group. Multivariate analysis indicated that age, blood urea nitrogen (BUN) level and N2 stage may be superior predictors of PPCs.

Conclusions

The addition of ICIs did not increase the incidence of PPCs but did prolong the operation time. Age, BUN level, and N2 stage were excellent predictors of PPCs in non-ADC NSCLC patients treated with surgery after neoadjuvant therapy.

The Optimal Time of High-Intensity Pre-rehabilitation for Surgical Lung Cancer Patients: A Retrospective Cohort Study with 4452 Patients

BACKGROUND

The aim of this study was to investigate the influence of the time of pre-rehabilitation (PR) combined with respiratory training and aerobic exercise on surgical patients with lung cancer.

PATIENTS AND METHODS

A retrospective study from a 5-year database of a single center, including patients with lung cancer who underwent surgery between 1 January 2016 and 31 December 2020, was conducted. The patients were divided into the PR group, in which they received the PR regimen, and the non-PR group, in which they received routine care.

RESULTS

A total of 4452 patients were retrospectively included, 684 of whom received PR regimen. A lower postoperative pulmonary complication (PPC) rate was observed in PR group than in non-PR group before or after propensity score matching (PSM) (before: 12.6% vs 18.5%, P < 0.001; after: 12.6% vs 18.7%, P < 0.001). For the PR group, a restricted cubic spline model revealed a significant nonlinear dose‒response association between PR time and the occurrence of PPCs (P for nonlinearity = 0.002). The PR time associated with the lowest occurrence of PPCs was 7 days, and the odds ratio (OR) of PPCs decreased steeply, with an OR of 0.8 [95% confidence interval (CI) 0.66-0.97] per day until 7 days, and then remained stable with a slight increase afterward with an OR of 1.11 (95% CI 0.99-1.25) per day.

CONCLUSION

The study validated the effectiveness of a pre-rehabilitation regimen for decreasing the occurrence of PPCs. A U-shaped nonlinear relationship was found between pre-rehabilitation time and the PPC rate, indicating that both excessive and insufficient pre-rehabilitation time may increase the incidence of PPCs. Registry Number: ChiCTR1800020097.

Utility of Frailty Index in Predicting Adverse Outcomes in Patients With the Same American Society of Anesthesiologists Class in Video-assisted Thoracoscopic Surgery

OBJECTIVES

To investigate the utility of the five-item Modified Frailty Index (MFI-5) as a preoperative risk-stratification tool in video-assisted thoracoscopic surgery (VATS) for patients with the same American Society of Anesthesiologists (ASA) class.

DESIGN

This was a retrospective cohort study utilizing data from The American College of Surgeons' National Surgical Quality Improvement Program (NSQIP) database from 2008 to 2021.

SETTING

The NSQIP includes 685 participating hospitals in all 50 states, the majority being large, academic medical centers.

PARTICIPANTS

All patients undergoing VATS were identified via CPT codes in the deidentified NSQIP dataset. Patients with invalid values for any variables of interest or significant covariates were excluded.

INTERVENTIONS

No interventions were applied to any patients in this retrospective cohort study.

MEASUREMENTS AND MAIN RESULTS

69,145 patients undergoing VATS were included, with the largest number having single lobectomy (32%) or unilateral wedge resection (26%). A total of 1,277 (1.8%) had unplanned reintubation, and 1,155 (1.7%) had ventilator dependence (VentDep) >48 hours after surgery. Of these patients, 66% were ASA class 3. Overall, ASA classification had a stronger correlation with both VentDep rates (adjusted R2 difference: +6.1%) and reintubation rates (adjusted R2 difference: +1.5%) than the MFI-5 score. However, combining ASA class with MFI-5 score was a stronger predictor for both primary outcomes than the ASA class alone (adjusted R2 difference: +1.5%, p < 0.001). The MFI-5 had the strongest correlation with both outcomes among ASA class 3 patients, demonstrating exponentially increasing odds of VentDep and reintubation (MFI 3 v MFI 0: odds ratio = 5.1 [3.7, 7], p = 0.002). MFI-5 also helped classify risk within ASA class 2 patients but not as reliably as for ASA class 3 (ASA class 2 reintubation: increased probability from MFI 0-1 and 1-2; VentDep: increased probability from MFI 0-1 only, p = 0.005).

CONCLUSIONS

The MFI-5 is a comorbidity-based scale that can be calculated preoperatively and considers distinct, but complementary information to the ASA class. Among VATS patients with identical ASA classes 2 and 3, the MFI-5 further stratified risk for reintubation and ventilator dependence >48 hours postsurgery.

Prehabilitation for Older Adults Undergoing Lung Cancer Surgery: A Literature Review and Needs Assessment

Early-stage lung cancer patients are increasingly considered for preoperative systemic therapy. Older adults in particular are among the most vulnerable patients, with little known on how preoperative therapies affect the risk-benefit of surgery. We sought to summarize the current literature and elucidate existing evidence gaps on the effects of prehabilitation interventions relative to age-related functional impairments and the unique needs of older patients undergoing lung cancer surgery. A literature review was performed using PubMed and Google Scholar databases, of all scientific articles published through April 2022 which report on the effects of prehabilitation on patients undergoing lung cancer surgery. We extracted current prehabilitation protocols and their impact on physical functioning, resilience, and patient-reported outcomes of older patients. Emerging evidence suggests that prehabilitation may enhance functional capacity and minimize the untoward effects of surgery for patients following lung resection similar to, or potentially even better than, traditional postoperative rehabilitation. The impact of preoperative interventions on surgical risk due to frailty remains ill-defined. Most studies evaluating prehabilitation include older patients, but few studies report on activities of daily living, self-care, mobility activities, and psychological resilience in older individuals. Preliminary data suggest the feasibility of physical therapy and resilience interventions in older individuals concurrent with systemic therapy. Future research is needed to determine best prehabilitation strategies for older lung cancer patients aimed to optimize age-related impairments and minimize surgical risk.

Risk factor analysis and predictive model development for air leakage after thoracoscopic pulmonary wedge resection

Background

The rate of postoperative complications in wedge resection is low because it does not involve major structures. However, postoperative air leakage (AL) is common. This research sought to determine the risk factors associated with AL following thoracoscopic pulmonary wedge resection and to create a predictive model for identifying patients suitable for tubeless procedures.

Methods

This study included individuals who underwent thoracoscopic pulmonary wedge resection at Fujian Medical University Union Hospital from January 2015 to December 2020. Univariate and multivariate logistic regression analyses were conducted to identify independent risk factors and construct relevant models. Concurrent data from two other centers were collected as validation sets for external validation.

Results

A total of 2,503 patients meeting the inclusion criteria were included in the study, with an overall incidence of AL at 11.35% (284/2,503). The development dataset included 2,006 cases, and columnar plots were drawn based on the outcomes of the multivariate logistic regression analysis. The final model included age >70, forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) ratio (FEV1%) <80%, nodule size, benignity/malignancy, and pleural adhesions (none, focal, diffuse). In the development dataset, the C-index was 0.829. The external validation set included 497 cases, with a C-index of 0.833.

Conclusions

The AL prediction model performed well and may be clinically useful for assessing AL and identifying patients who can benefit from tubeless strategies.

Impaired oxygenation after lung resection: Incidence and perioperative risk factors

STUDY OBJECTIVE

To estimate the incidence of postoperative oxygenation impairment after lung resection in the era of lung-protective management, and to identify perioperative factors associated with that impairment.

DESIGN

Registry-based retrospective cohort study.

SETTING

Two large academic hospitals in the United States.

PATIENTS

3081 ASA I-IV patients undergoing lung resection.

MEASUREMENTS

79 pre- and intraoperative variables, selected for inclusion based on a causal inference framework. The primary outcome of impaired oxygenation, an early marker of lung injury, was defined as at least one of the following within seven postoperative days: (1) SpO2 < 92%; (2) imputed PaO2/FiO2 < 300 mmHg [(1) or (2) occurring at least twice within 24 h]; (3) intensive oxygen therapy (mechanical ventilation or > 50% oxygen or high-flow oxygen).

MAIN RESULTS

Oxygenation was impaired within seven postoperative days in 70.8% of patients (26.6% with PaO2/FiO2 < 200 mmHg or intensive oxygen therapy). In multivariable analysis, each additional cmH2O of intraoperative median driving pressure was associated with a 7% higher risk of impaired oxygenation (OR 1.07; 95%CI 1.04 to 1.10). Higher median intraoperative FiO2 (OR 1.23; 95%CI 1.14 to 1.31 per 0.1) and PEEP (OR 1.12; 95%CI 1.04 to 1.21 per 1 cm H2O) were also associated with increased risk. History of COPD (OR 2.55; 95%CI 1.95 to 3.35) and intraoperative albuterol administration (OR 2.07; 95%CI 1.17 to 3.67) also showed reliable effects.

CONCLUSIONS

Impaired postoperative oxygenation is common after lung resection and is associated with potentially modifiable pre- and intraoperative respiratory factors.

New models for prediction of postoperative pulmonary complications in lung resection candidates

Introduction

In recent years, ventilatory efficiency (minute ventilation (V'E)/carbon dioxide production (V'CO2 ) slope) and partial pressure of end-tidal carbon dioxide (P ETCO2 ) have emerged as independent predictors of postoperative pulmonary complications (PPC). Single parameters may give only partial information regarding periprocedural hazards. Accordingly, our aim was to create prediction models with improved ability to stratify PPC risk in patients scheduled for elective lung resection surgery.

Methods

This post hoc analysis was comprised of consecutive lung resection candidates from two prior prospective trials. All individuals completed pulmonary function tests and cardiopulmonary exercise testing (CPET). Logistic regression analyses were used for identification of risk factors for PPC that were entered into the final risk prediction models. Two risk models were developed; the first used rest P ETCO2 (for patients with no available CPET data), the second used V'E/ V'CO2 slope (for patients with available CPET data). Receiver operating characteristic analysis with the De-Long test and area under the curve (AUC) were used for comparison of models.

Results

The dataset from 423 patients was randomly split into the derivation (n=310) and validation (n=113) cohorts. Two final models were developed, both including sex, thoracotomy, "atypical" resection and forced expiratory volume in 1 s/forced vital capacity ratio as risk factors. In addition, the first model also included rest P ETCO2 , while the second model used V'E/V'CO2 slope from CPET. AUCs of risk scores were 0.795 (95% CI: 0.739-0.851) and 0.793 (95% CI: 0.737-0.849); both p<0.001. No differences in AUCs were found between the derivation and validation cohorts.

Conclusions

We created two multicomponental models for PPC risk prediction, both having excellent predictive properties.

Telerehabilitation physical exercise for patients with lung cancer through the course of their disease: A systematic review

BACKGROUND AND OBJECTIVE

Evidence is shown for the benefits of physical activity, for patients with lung cancer, at different times through the course of the disease. Telerehabilitation can overcome some of barriers often met by patients to practice physical activity. The objective of this systematic review is to assess feasibility and safety of telerehabilitation for patients with lung cancer, its effects on physical capacity, quality of life, symptoms severity, depression and anxiety, survival, lung function, post-operative outcomes, dyspnoea and body composition. Secondary aim was to distinguish the telerehabilitation efficacy between the different phases of the disease.

DATA SOURCE AND SELECTION CRITERIA

Pubmed, PEDro, Scopus, ScienceDirect, randomized controlled trials and non-randomized controlled trials, written in French or English, of telerehabilitation among patients with lung cancer.

RESULTS

Eight studies were included. Telerehabilitation is safe but was characterized by a low recruitment and attendance rate (<70%). It enhances quality of life, muscle mass, depression and anxiety but it does not improve physical capacity (except in preoperative period), symptoms severity, survival, lung function or dyspnoea. After surgery, it ameliorates quality of life, depression and anxiety. During systemic treatments of lung cancer, it improves quality of life, symptoms severity and muscle mass.

CONCLUSION

Telerehabilitation could be proposed in patients with lung cancer as a complementary intervention of hospital-based programme to increase physical activity volume, compliance and self-efficacy. In case the classic programmes are not possible, it could also be an alternative approach for patients unable to participate to a hospital or community-based training programme.

Comparison of frailty indexes as predictors of clinical outcomes after major thoracic surgery

Background

Despite greater appreciation for the importance of frailty in surgical patients, due to improved understanding that frailty is often linked to poor outcomes, the optimal method of assessment remains unknown. In this study, we sought to evaluate the prevalence of frailty in patients considered for elective thoracic surgery and to test the ability of several frailty measurements to predict postoperative outcomes.

Methods

Patients included were candidates for major elective thoracic surgery. Preoperative assessment of frailty included the Fried frailty phenotype, the Edmonton Frail Scale (EFS), the modified frailty index (mFI), the Clinical Frailty Scale (CFS), and additional components of frailty. Outcome data include days with chest drain, length of hospital stay, and postoperative adverse events.

Results

According to the Fried frailty phenotype, 53% of 94 patients included were prefrail or frail. A significant association between frailty and postoperative complications was found (odds ratio 7.65; P=0.001). No association between CFS, mFI, EFS, and complications was observed. The Frailty Phenotype seemed the most accurate in predicting postoperative complications, with an area under the curve (AUC) of 0.77. Twenty-seven percent of patients meet the criteria for depression according to the Geriatric Depression Scale and they showed a higher risk of postoperative complications (OR 2.47; P=0.03). A lower psoas muscle index was associated with a higher risk of complications (OR 3.40; P=0.04).

Conclusions

According to our results, the Fried frailty phenotype seems the most accurate tool to test frailty in patients undergoing thoracic resections. Surgeons should be aware that, although these aspects are not routinely tested, they are potential targets to improve clinical outcomes. Studies on additional interventions specifically targeting frail people in the setting of elective thoracic surgery are required.

"Prehabilitation" for Pediatric Patients With Cancer Before Undergoing Hematopoietic Stem Cell Transplantation

Hematopoietic stem cell transplantation (HSCT) is associated with significant physical debility. Studies have suggested that physical activity can improve endurance and strength. However, studies have not yet investigated "prehabilitation," exercise before HSCT, to improve functional outcomes. We describe the impact of exercise therapy on physical debility in children undergoing HSCT to inform the implementation of prehabilitation. This review was conducted through a search of the electronic database PubMed. Articles included were those with original research, including randomized control trials, prospective studies, case controls, and retrospective studies. Eleven of the 191 resulting studies met our review criteria. None focused on prehabilitation, but instead on interventions during HSCT. Ten studies showed improvement or maintenance of strength, endurance, stretching, or aerobic fitness. This review shows that exercise therapy can positively affect outcomes in patients undergoing HSCT. Further investigations are needed to determine whether prehabilitation has better results than concurrent exercise.

Sternal resection and reconstruction: a review

Sternal resection and reconstruction is a rare but sometimes challenging procedure due to its profound anatomical and functional implications. For these reasons, an adequate preoperative evaluation is crucial in each patient, especially when we are faced with malignant lesions that sometimes require extensive radical resections, thus demanding an integrated reconstructive strategy that allows stabilizing the chest wall, protecting the underlying mediastinum and minimize resulting deformity. The large number of available reconstruction techniques and the lack of quality studies for their analysis mean that sternal reconstruction depends to a great extent on the consensus of experts or, more frequently, on the simple preference of each surgical team. This article aims to provide an overview of sternal resection and reconstruction. Indications for partial versus total or subtotal sternectomy are suggested and their surgical and oncological outcomes are presented. The use of rigid or semi-rigid prostheses is an ongoing debate, although recent functional data advise reserving rigid reconstructions for extensive defects. Sternectomy for primary tumors or local tumor involvement has a good prognosis with an overall survival of 5 and 10 years: 67% and 58%, respectively, provided that a radical resection with free surgical margins is performed. Breast cancer is the most common secondary sternal tumor, and surgery can offer 5-year overall survival ranging from 20% to 50% provided an R0 resection is achieved, although radical surgery does not appear to decrease rates. of recurrence. Metastases of origin other than the breast give the worst results (less than 40% at 36 months and 0% at 5 years) and although the data available on these cases are limited, the radicality of the resection does not seem to modify the survival or recurrence rates, so a conservative approach is probably more appropriate.

Preoperative 6-minute walk distance is associated with postoperative complications in patients undergoing laparoscopic gastrointestinal cancer surgery

OBJECTIVE

The 6-min walk test (6MWT) is a simple and valid method to evaluate cardiopulmonary function. We performed this prospective study in patients undergoing laparoscopic gastrointestinal cancer surgery to explore the association between preoperative 6MWT performance and overall postoperative complications.

METHODS

This study was registered at clinicaltrials.gov (NCT03711526). The study consecutively enrolled patients receiving laparoscopic gastrointestinal cancer surgery in our institution. All patients performed the 6MWT upon recruitment and received 30 days of postoperative follow-up. The primary outcome was overall complications, defined by ≥ grade I Clavien-Dindo (CD) classification (2004) complications. Multivariable logistic regression was used to test the association of 6-min walk distance (6MWD) with the outcome.

RESULTS

A total of 184 patients were included in the final analyses. In the 37 (20.1 %) patients with overall complications, the mean (standard deviation) preoperative 6MWD was 469.1 (86.8) m. In patients with no complications, the 6MWD was 502.6 (90.2) m. The mean difference was 33.5 m (95 % confidence interval, 1.3, 65.7; P = 0.042). A longer preoperative 6MWD was associated with a lower odds of developing postoperative complications (odds ratio, 0.994 per meter increase; 95 % confidence interval, 0.989, 0.999; p = 0.023).

CONCLUSION

This study indicated an association between the preoperative 6MWD and postoperative complications in patients undergoing laparoscopic gastrointestinal cancer surgery.

Effect of Prehabilitation in Lung Cancer Patients Undergoing Lobectomy: A Review

Deaths from lung cancer are mostly caused by smoking. Cough, dyspnea, fatigue, weight loss, and Horner's syndrome are among the symptoms. Non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC) are the two categories into which lung cancer may be divided. Because of its effectiveness and lower death rates, lobectomy is the primary line of therapy for benign and early-stage lung illnesses. Pulmonary rehabilitation is a routine treatment for thoracic surgery individuals who are at a high risk to improve functional ability, avoid postoperative deterioration, avoid postoperative deterioration, and reduce complications and even hospital stays. Pulmonary rehabilitation is a multifaceted continuum of services intended to help individuals with pulmonary disease and their families reach and sustain their highest possible degree of independence and community functioning, typically provided by an interdisciplinary team of specialists.  The objective of this research was to gather preliminary information and assess the effects of pre-rehabilitation on those suffering from lung cancer and having lobectomy. The pre-rehabilitation program's outcomes include increased lung functional capacity, enhanced quality of life, patient independence in daily living activities, and a shorter hospital stay. Gradually increasing walking distance over time can build endurance, requiring consistency, pacing, proper hydration, nutrition, and regular breaks. This review analyzed the effect of pre-rehabilitation in lung cancer patients undergoing lobectomy. Pre-rehabilitation program for individuals with lung cancer improves both preoperative and postoperative health through various exercises. Pulmonary rehabilitation is a multidisciplinary approach that encourages physical activity, learning about disease, treatment options, and coping mechanisms. Instead of curing the illness, its goal is to lessen its symptoms and limitations. Patients with pulmonary diseases or undergoing thoracic surgery prefer pre-rehabilitation programs due to their non-traumatic nature and fewer resources required. Elastic resistance band exercises are beneficial for lung cancer patients' pre-rehabilitation by strengthening and stretching muscle groups, improving exercise capacity, and supporting white blood cell counts. These exercises can be customized to individual needs, making them a safe and effective addition to a patient's exercise routine. They have to be carried out at least three days a week. Pulmonary exercise, including the use of a tri-ball pulmonary exerciser or three-ball spirometer, can improve lung function, respiratory muscle strength, and exercise capacity in lung cancer patients. It involves breathing techniques, cough exercises, and inflating a balloon. Pulmonary rehabilitation has a positive impact on patient health. Improved lung vital capacity, shorter hospital stays, and fewer problems following surgery are all achieved with pulmonary rehabilitation. The pre-rehabilitation plan allows the patient to resume their daily routines.

Association of frailty with postoperative outcomes following thoracic transplantation: A national analysis

Objective

Frailty has been repeatedly associated with inferior outcomes after surgical hospitalizations. However, a thorough evaluation of the impact of frailty on the clinical and financial outcomes of patients undergoing solid-organ thoracic transplantation is sparse in the literature. We evaluated the association of frailty, as determined by an administrative tool, with postoperative outcomes and healthcare resource use after heart or lung transplantation.

Methods

The Nationwide Readmissions Database was used to identify all adult hospitalizations for heart or lung transplant from 2014 to 2020. Patients were grouped as frail or nonfrail using International Classification of Diseases codes associated with conditions in the Johns Hopkins Adjusted Clinical Groups cluster. Multivariable regression models were developed to evaluate the association of frailty status on in-hospital mortality, complications, length of stay, costs, and unplanned readmissions.

Results

Of an estimated 35,862 heart or lung transplant recipients, 7316 (20.4%) were considered frail. After multivariable adjustment, frailty in heart transplantation was associated with greater odds of in-hospital mortality (adjusted odds ratio, 1.54; 95% CI, 1.19-1.99) and infectious complications (adjusted odds ratio, 1.77; 95% CI, 1.45-2.15; P < .001). Frailty in lung transplantation was also associated with higher odds of in-hospital mortality (adjusted odds ratio, 1.38; 95% CI, 1.11-1.69) and infectious complications (adjusted odds ratio, 1.93; 95% CI, 1.60-2.31). In addition, frailty in both heart transplantation and lung transplantation was associated with increased postoperative length of stay and greater costs.

Conclusions

Among transplant recipients, those classified as frail were associated with increased in-hospital mortality, perioperative complications, and resource use.

Preconditioning program reduces the incidence of prolonged hospital stay after lung cancer surgery: Results from the Move For Surgery randomized clinical trial

BACKGROUND

Lung cancer resection is associated with high rates of prolonged hospital stay. It is presumed that preconditioning with aerobic exercise can shorten the postoperative duration of hospital stay, but this has not yet been demonstrated in trials after lung cancer surgery. The aim of this study was to perform a RCT to determine whether Move For Surgery (MFS), a home-based and wearable technology-enhanced preconditioning program before lung cancer surgery, is associated with a lower incidence of prolonged hospital stay when compared to usual preoperative care.

METHODS

Patients undergoing lung resection for early-stage non-small cell lung cancer were enrolled before surgery into this blinded, single-site RCT, and randomized to either the MFS or control group in a 1 : 1 ratio. Patients in the MFS group were given a wearable activity tracker, and education about deep breathing exercises, nutrition, sleep hygiene, and smoking cessation. Participants were motivated/encouraged to reach incrementally increasing fitness goals remotely. Patients in the control group received usual preoperative care. The primary outcome was the difference in proportion of patients with hospital stay lasting more than 5 days between the MFS and control groups.

RESULTS

Of 117 patients screened, 102 (87.2 per cent) were eligible, enrolled, and randomized (51 per trial arm). The majority (95 of 102, 93.1 per cent) completed the trial. Mean(s.d.) age was 67.2(8.8) years and there were 55 women (58 per cent). Type of surgery and rates of thoracotomy were not different between arms. The proportion of patients with duration of hospital stay over 5 days was 3 of 45 (7 per cent) in the MFS arm compared to 12 of 50 (24 per cent) in the control arm (P = 0.021).

CONCLUSION

MFS, a home-based and wearable technology-enhanced preconditioning program before lung cancer surgery, decreased the proportion of patients with a prolonged hospital stay. Registration number: NCT03689634 (http://www.clinicaltrials.gov).

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.

Exercise Rehabilitation and Chronic Respiratory Diseases: Effects, Mechanisms, and Therapeutic Benefits

Chronic respiratory diseases (CRD), is a group of disorders, primarily chronic obstructive pulmonary disease and asthma, which are characterized by high prevalence and disability, recurrent acute exacerbations, and multiple comorbidities, resulting in exercise limitations and reduced health-related quality of life. Exercise training, an important tool in pulmonary rehabilitation, reduces adverse symptoms in patients by relieving respiratory limitations, increasing gas exchange, increasing central and peripheral hemodynamic forces, and enhancing skeletal muscle function. Aerobic, resistance, and high-intensity intermittent exercises, and other emerging forms such as aquatic exercise and Tai Chi effectively improve exercise capacity, physical fitness, and pulmonary function in patients with CRD. The underlying mechanisms include enhancement of the body's immune response, better control of the inflammatory response, and acceleration of the interaction between the vagus and sympathetic nerves to improve gas exchange. Here, we reviewed the new evidence of benefits and mechanisms of exercise intervention in the pulmonary rehabilitation of patients with chronic obstructive pulmonary disease, bronchial asthma, bronchiectasis, interstitial lung disease, and lung cancer.

Implementing a virtual mind-body prehabilitation program for patients undergoing thoracic surgery: A quality improvement project

Background

Prehabilitation before thoracic surgery has been found to improve outcomes in patients with cancer; however, COVID-19 presented challenges to access on-site programs. We describe the development, implementation, and evaluation of a synchronous, virtual mind-body prehabilitation program developed in response to COVID-19.

Methods

Eligible participants were patients seen at a thoracic oncology surgical department of an academic cancer center, aged 18 years or older with a diagnosis of thoracic cancer and referred at least 1 week before surgery. The program offered 2 45-minute preoperative mind-body fitness classes each week delivered via Zoom (Zoom Video Communications, Inc). We collected data for referrals, enrollment, participation, and evaluated patient-reported satisfaction and experience. We conducted brief semistructured interviews about participants' experience.

Results

Among 278 patients referred, 260 were approached, and of those 197 (76%) patients agreed to participate. Among participants, 140 (71%) attended at least 1 class, with an average of 11 attendees per class. The majority of participants reported being extremely satisfied (97.8%), extremely likely to recommend the classes to others (91.2%), and indicated that classes were very much helpful in preparing for surgery (90.8%). Patients also reported that the classes helped reduce anxiety/stress (94.2%), fatigue (88.5%), pain (80.7%), and shortness of breath (86.5%). Qualitative data further suggest that the program made participants feel stronger, more connected to their peers, and better prepared for surgery.

Conclusions

This virtual mind-body prehabilitation program was well received with high satisfaction and benefits and is highly feasible to implement. This approach may help overcome some of the challenges to in-person participation.

Can postoperative complications be reduced by the application of ERAS protocols in operated non-small cell lung cancer patients?

Background

In our study, we aimed to evaluate the length of hospital stay and complication rate of patients before and after application o f t he E nhanced R ecovery A fter S urgery ( ERAS) protocols.

Methods

Between January 2001 and January 2021, a total of 845 patients (687 males, 158 females; mean age: 55±11 years; range, 19 to 89 years) who were operated with the diagnosis of non-small cell lung carcinoma were retrospectively analyzed. The patients were divided into three groups as follows: patients between 2001 and 2010 were evaluated as pre-ERAS (Group 1, n=285), patients between 2011 and 2015 as preparation for ERAS period (Group 2, n=269), and patients who had resection between 2016 and 2021 as the ERAS period (Group 3, n=291).

Results

All three groups were similar in terms of clinical, surgical and demographic characteristics. Smoking history was statistically significantly less in Group 3 (p=0.005). The forced expiratory volume in 1 sec/forced vital capacity and albumin levels were statistically significantly higher in Group 3 (p<0.001 and p=0.019, respectively). The leukocyte count and tumor maximum standardized uptake value were statistically significantly higher in Group 1 (p=0.018 and p=0.014, respectively). Postoperative hospitalization day, complication rate, and intensive care hospitalization rates were statistically significantly lower in Group 3 (p<0.001). The rate of additional disease was statistically significantly higher in Group 1 (p=0.030). Albumin level (<2.8 g/dL), lymphocyte/monocyte ratio (<1.35), and hemoglobin level (<8.3 g/dL) were found to be significant predictors of complication development.

Conclusion

With the application of ERAS protocols, length of postoperative hospital stay, complication rate, and the need for intensive care hospitalization decrease. Preoperative hemoglobin level, albumin level, and lymphocyte/monocyte ratio are the predictors of complication development. Increasing hemoglobin and albumin levels before operation may reduce postoperative complications.

Identification of Metastatic Lymph Nodes Using Indocyanine Green Fluorescence Imaging

Indocyanine green (ICG) has been used to detect several types of tumors; however, its ability to detect metastatic lymph nodes (LNs) remains unclear. Our goal was to determine the feasibility of ICG in detecting metastatic LNs. We established a mouse model and evaluated the potential of ICG. The feasibility of detecting metastatic LNs was also evaluated in patients with lung or esophageal cancer, detected with computed tomography (CT) or positron-emission tomography (PET)/CT, and scheduled to undergo surgical resection. Tumors and metastatic LNs were successfully detected in the mice. In the clinical study, the efficacy of ICG was evaluated in 15 tumors and fifty-four LNs with suspected metastasis or anatomically key regional LNs. All 15 tumors were successfully detected. Among the fifty-four LNs, eleven were pathologically confirmed to have metastasis; all eleven were detected in ICG fluorescence imaging, with five in CT and seven in PET/CT. Furthermore, thirty-four LNs with no signals were pathologically confirmed as nonmetastatic. Intravenous injection of ICG may be a useful tool to detect metastatic LNs and tumors. However, ICG is not a targeting agent, and its relatively low fluorescence makes it difficult to use to detect tumors in vivo. Therefore, further studies are needed to develop contrast agents and devices that produce increased fluorescence signals.

The protocol for the prehabilitation for thoracic surgery study: a randomized pragmatic trial comparing a short home-based multimodal program to aerobic training in patients undergoing video-assisted thoracoscopic surgery lobectomy

BACKGROUND

Prehabilitation has been shown to have a positive effect on the postoperative recovery of functional capacity in patients undergoing video-assisted thoracoscopic surgery (VATS) lobectomy. The optimal way to implement prehabilitation programs, such as the optimal forms of prehabilitation, duration, intensity, and methods to improve compliance, remained to be studied. This Prehabilitation for Thoracic Surgery Study will compare the effectiveness of multimodal and aerobic training-only programs in patients undergoing thoracoscopic lobectomy.

METHODS

This randomized pragmatic trial will be conducted in Peking Union Medical College Hospital (PUMCH) and include 100 patients who are eligible to undergo VATS lobectomy. Patients will be randomized to a multimodal or aerobic training group. Prehabilitation training guidance will be provided by a multidisciplinary care team. The patients in the multimodal group will perform aerobic exercises, resistance exercises, breathing exercises, psychological improvement strategies, and nutritional supplementation. Meanwhile, the patients in the aerobic group will conduct only aerobic exercises. The interventions will be home-based and supervised by medical providers. The patients will be followed up until 30 days after surgery to investigate whether the multimodal prehabilitation program differs from the aerobic training program in terms of the magnitude of improvement in functional capability pre- to postoperatively. The primary outcome will be the perioperative 6-min walk distance (6MWD). The secondary outcomes will include the postoperative pulmonary functional recovery status, health-related quality of life score, incidence of postoperative complications, and clinical outcomes.

DISCUSSION

Prehabilitation remains a relatively new approach that is not widely performed by thoracic surgery patients. The existing studies mainly focus on unimodal interventions. While multimodal prehabilitation strategies have been shown to be preferable to unimodal strategies in a few studies, the evidence remains scarce for thoracic surgery patients. The results of this study will contribute to the understanding of methods for thoracoscopic lobectomy patients.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04049942 . Registered on August 8, 2019.

Exercise Training in Elderly Cancer Patients: A Systematic Review

Due to the aging of the population, in 70% of cases, a new cancer diagnosis equals a cancer diagnosis in a geriatric patient. In this population, beyond the concept of mortality and morbidity, functional capacity, disability, and quality of life remain crucial. In fact, when the functional status is preserved, the pathogenetic curve towards disability will stop or even regress. The present systematic review investigated the effectiveness of physical exercise, as part of a holistic assessment of the patient, for preventing disability and improving the patient’s quality of life, and partially reducing all-cause mortality. This evidence must point towards decentralization of care by implementing the development of rehabilitation programs for elderly cancer patients either before or after anti-cancer therapy.

The risk of post-operative pulmonary complications in lung resection candidates with normal forced expiratory volume in 1 s and diffusing capacity of the lung for carbon monoxide: a prospective multicentre study

Introduction

According to the guidelines for preoperative assessment of lung resection candidates, patients with normal forced expiratory volume in 1 s (FEV₁) and diffusing capacity of the lung for carbon monoxide (D _LCO) are at low risk for post-operative pulmonary complications (PPC). However, PPC affect hospital length of stay and related healthcare costs. We aimed to assess risk of PPC for lung resection candidates with normal FEV₁ and D _LCO (>80% predicted) and identify factors associated with PPC.

Methods

398 patients were prospectively studied at two centres between 2017 and 2021. PPC were recorded from the first 30 post-operative days. Subgroups of patients with and without PPC were compared and factors with significant difference were analysed by uni- and multivariate logistic regression.

Results

188 subjects had normal FEV₁ and D _LCO. Of these, 17 patients (9%) developed PPC. Patients with PPC had significantly lower pressure of end-tidal carbon dioxide (P _ETCO2 ) at rest (27.7 versus 29.9; p=0.033) and higher ventilatory efficiency (V'_E/V'_CO2 ) slope (31.1 versus 28; p=0.016) compared to those without PPC. Multivariate models showed association between resting P _ETCO2 (OR 0.872; p=0.035) and V'_E/V'_CO2 slope (OR 1.116; p=0.03) and PPC. In both models, thoracotomy was strongly associated with PPC (OR 6.419; p=0.005 and OR 5.884; p=0.007, respectively). Peak oxygen consumption failed to predict PPC (p=0.917).

Conclusions

Resting P _ETCO2 adds incremental information for risk prediction of PPC in patients with normal FEV₁ and D _LCO. We propose resting P _ETCO2 be an additional parameter to FEV₁ and D _LCO for preoperative risk stratification.

[Enhanced recovery after lung resection in high-risk patients]

OBJECTIVE

To study the possibilities of the ERAS program and immediate results in high-risk patients undergoing lung resection.

MATERIAL AND METHODS

The prospective study included 76 high-risk patients. All patients required lobar resection for various lung diseases. The risk of postoperative complications and mortality was stratified using the Thoracoscore and Thoracic Revised Cardiac Risk Index systems, as well as the American Society of Anesthesiologists Outcome Prediction Scale. At all perioperative stages, we assessed the possibilities for accelerated recovery and postoperative complications using the Thoracic Morbidity and Mortality System.

RESULTS

Patients were characterized by multiple comorbidities requiring long-term and individual preoperative correction. This prevented adherence to a single protocol at the outpatient stage. We intraoperatively observed severe adhesive process up to complete obliteration of pleural cavity that complicated the use of minimally invasive technologies. Lung tissue was characterized by emphysematous lesions and reduced elasticity that caused prolonged air release and formation of residual cavities. These features required two pleural drains in 42 (52.3%) cases that increased hospital-stay. Multimodal analgesia and early activation with rehabilitation were optimal elements of ERAS. Various postoperative abnormalities developed in 31 (40.8%) patients, mortality rate was 7.9% (n=6). Minor and serious complications prevailed (21 (27.6%) cases). Their correction was effective and not accompanied by fatal outcomes. Critical complications occurred in 10 (13.1%) patients and caused fatal outcomes in 6 (7.9%) cases.

CONCLUSION

ERAS protocol among high-risk patients in thoracic surgery is possible in the form of separate elements included in perioperative support.

[The Status of Spiroergometry in Preoperative Risk Assessment]

Physical performance is considered as a prognostic factor for perioperative mortality and morbidity. Thus, in recent years, spiroergometry has gained increasing significance in preoperative assessment. Beside the measurement of functional capacity, spiroergometric results may yield indications for cardiocirculatory or pulmonary disorders. A significant increased risk profile is reflected in the values VO₂max < 15 ml/kg/min, VO₂ at the first ventilatory threshold (VT1) < 11 ml/kg/min, and VE/VCO₂ at VT1 > 34. Prior to the examination, contraindications should be taken into account and standardized conduction must be adhered to. Many studies substantiate the positive effect of prehabilitation on morbidity, quality of life, and length of hospitalization, in particular in abdominal, thoracic and hepatobiliary surgery. Using the data acquired in the performance diagnostic, an optimized individual training plan can be drawn up. Besides, the risk evaluation contributes to planning surgical and anaesthetic procedures. Regular training and interdisciplinary teamwork are of utmost importance for the correct interpretation and application of the partly rather complex results.

Pulmonary prehabilitation and smoking cessation

PURPOSE OF REVIEW

This review aims to summarize the current literature on pulmonary prehabilitation programs, their effects on postoperative pulmonary complications, and the financial implications of implementing these programs. Additionally, this review has discussed the current trends in pulmonary prehabilitation programs, techniques for improving rates of perioperative smoking cessation, and the optimal timing of these interventions.

RECENT FINDINGS

Prehabilitation is a series of personalized multimodal interventions tailored to individual needs, including lifestyle and behavioral measures. Pulmonary prehabilitation has shown to reduce postoperative pulmonary complications (PPCs).

SUMMARY

The implications of clinical practice and research findings regarding PPCs are an increased burden of postoperative complications and financial cost to both patients and hospital systems. There is convincing evidence that pulmonary prehabilitation based on endurance training should be started 8-12 weeks prior to major surgery; however, similar rates of improved postoperative outcomes are observed with high-intensity interval training (HIIT) for 1-2 weeks. This shorter interval of prehabilitation may be more appropriate for patients awaiting thoracic surgery, especially for cancer resection. Additionally, costs associated with creating and maintaining a prehabilitation program are mitigated by shortened lengths of stay and reduced PPCs. Please see Video Abstract, http://links.lww.com/COAN/A90.

Preoperative respiratory therapy in patients undergoing surgery for lung cancer: A randomized controlled trial

BACKGROUND

A preoperative respiratory therapy treatment was performed to analyze the effectiveness, with respect to postoperative air leak and pain, in patients undergoing surgery for lung cancer.

OBJECTIVES

To analyze air leakage and postoperative pain.

MATERIAL AND METHODS

Seventy one patients were studied, with a mean age of 62.58 years. Descriptive variables of gender, carcinogenic pathology, type of surgical incision and lung resection, use of glue and endostapler, and presence of adhesions were analyzed. Likewise, analysis of the quantitative variables of age, body mass index and forced expiratory volume in 1 s Two homogeneous groups resulted. Differentiated, experimental group (EG) that performed preoperative respiratory therapy and control group (CG).

RESULTS

There were statistically significant differences in favor of the EG with respect to postoperative air leak on days 1-2 during the performance of physiotherapy techniques, the food and during the performance of the exercises autonomously. Furthermore, differences in air leakage were observed on days 2-4 during gait. The number of patients decreased to a greater extent in the EG. Regarding pain, there were statistically significant differences in the sample on days 1-4, with greater intensity of pain in the CG and after doing physiotherapy every day except the second.

CONCLUSIONS

Preoperative respiratory therapy in patients undergoing surgery for lung cancer was effective in reducing the number of patients who presented postoperative air leak and reducing pain in the EG.

Understanding Racial Differences in Lung Cancer Surgery Through a Statewide Quality Collaborative

BACKGROUND

Persistent racial disparities in lung cancer incidence, treatment, and survival are well documented. Given the importance of surgical resection for lung cancer treatment, racial disparities in surgical quality were investigated using a statewide quality collaborative.

METHODS

This retrospective study used data from the Michigan Society of Cardiothoracic Surgeons General Thoracic database, which includes data gathered for the Society of Thoracic Surgeons General Thoracic Surgery Database at 17 institutions in Michigan. Adult patients undergoing resection for lung cancer between 2015 and 2021 were included. Propensity score-weighting methodology was used to assess differences in surgical quality, including extent of resection, adequate lymph node evaluation, 30-day mortality, and 30-day readmission rate between white and black patients.

RESULTS

The cohort included 5073 patients comprising 357 (7%) black and 4716 (93%) white patients. The black patients had significantly higher unadjusted rates of wedge resection than the white patients, but after propensity score-weighting for clinical factors, wedge resection did not differ from lobectomy (odds ratio [OR], 1.07; 95% confidence interval [CI], 0.78-1.49; P = 0.67). The black patients had fewer lymph nodes collected (incidence rate ratio [IRR], 0.77; 95% CI, 0.73-0.81; P < 0.0001) and lymph node stations sampled (IRR, 0.89; 95% CI, 0.84-0.94; P < 0.0001). The black patients did not differ from the white patients in terms of mortality (OR, 0.65; 95% CI, 0.19-2.34; P = 0.55) or readmission (OR, 0.79; 95 % CI, 0.49-1.27; P = 0.32). The black patients had longer hospital stays (OR, 1.08; 95% CI, 1.02-1.14; P = 0.01).

CONCLUSION

In a statewide quality collaborative that included high-volume centers, black patients received a less extensive lymph node evaluation, with fewer non-anatomic wedge resections performed, and a more limited lymph node evaluation with lobectomy.

Factors Associated with Early Discharge after Thoracoscopic Lobectomy: Results from the Italian VATS Group Registry

Objective. There are limited data for estimating the risk of early discharge following thoracoscopic lobectomy. The objective was to identify the factors associated with a short length of stay and verify the influence of these variables in uncomplicated patients. Methods. We reviewed all lobectomies reported to the Italian VATS Group between January 2014 and January 2020. Patients and perioperative characteristics were divided into two subgroups based on whether or not they met the target duration of stay (≤ or >4 days). The association between preoperative and intraoperative variables and postoperative length of stay (LOS) ≤4 days was assessed using a stepwise multivariable logistic regression analysis to identify factors independently associated with LOS and factors related to LOS in uncomplicated cases. Results. Among 10,240 cases who underwent thoracoscopic lobectomy, 37.6% had a hospital stay ≤4 days. Variables associated with LOS included age, hospital surgical volume, Diffusion Lung CO % (81 [69−94] vs. 85 [73−98]), Forced Expiratory Volume (FEV1) % (92 [79−106] vs. 96 [82−109]), operative time (180 [141−230] vs. 160 [125−195]), uniportal approach (571 [9%] vs. 713 [18.5%]), bioenergy sealer use, and pain control through intercostal block or opioids (p < 0.001). Except for FEV1 and blood loss, all other factors emerged significantly associated with LOS when the analysis was limited to uncomplicated patients. Conclusions. Demographic, clinical, and surgical variables are associated with early discharge after thoracoscopic lobectomy. This study indicates that these characteristics are associated with early discharge. This result can be used in association with clinical judgment to identify appropriate patients for fast-track protocols.

Factors Associated with Early Discharge after Thoracoscopic Lobectomy: Results from the Italian VATS Group Registry

Objective. There are limited data for estimating the risk of early discharge following thoracoscopic lobectomy. The objective was to identify the factors associated with a short length of stay and verify the influence of these variables in uncomplicated patients. Methods. We reviewed all lobectomies reported to the Italian VATS Group between January 2014 and January 2020. Patients and perioperative characteristics were divided into two subgroups based on whether or not they met the target duration of stay (≤ or >4 days). The association between preoperative and intraoperative variables and postoperative length of stay (LOS) ≤4 days was assessed using a stepwise multivariable logistic regression analysis to identify factors independently associated with LOS and factors related to LOS in uncomplicated cases. Results. Among 10,240 cases who underwent thoracoscopic lobectomy, 37.6% had a hospital stay ≤4 days. Variables associated with LOS included age, hospital surgical volume, Diffusion Lung CO % (81 [69–94] vs. 85 [73–98]), Forced Expiratory Volume (FEV1) % (92 [79–106] vs. 96 [82–109]), operative time (180 [141–230] vs. 160 [125–195]), uniportal approach (571 [9%] vs. 713 [18.5%]), bioenergy sealer use, and pain control through intercostal block or opioids (p < 0.001). Except for FEV1 and blood loss, all other factors emerged significantly associated with LOS when the analysis was limited to uncomplicated patients. Conclusions. Demographic, clinical, and surgical variables are associated with early discharge after thoracoscopic lobectomy. This study indicates that these characteristics are associated with early discharge. This result can be used in association with clinical judgment to identify appropriate patients for fast-track protocols.

Prehabilitation of elderly frail or pre-frail patients prior to elective surgery (PRAEP-GO): study protocol for a randomized, controlled, outcome assessor-blinded trial

BACKGROUND

Frailty is expressed by a reduction in physical capacity, mobility, muscle strength, and endurance. (Pre-)frailty is present in up to 42% of the older surgical population, with an increased risk for peri- and postoperative complications. Consequently, these patients often suffer from a delayed or limited recovery, loss of autonomy and quality of life, and a decrease in functional and cognitive capacities. Since frailty is modifiable, prehabilitation may improve the physiological reserves of patients and reduce the care dependency 12 months after surgery.

METHODS

Patients ≥ 70 years old scheduled for elective surgery or intervention will be recruited in this multicenter, randomized controlled study, with a target of 1400 participants with an allocation ratio of 1:1. The intervention consists of (1) a shared decision-making process with the patient, relatives, and an interdisciplinary and interprofessional team and (2) a 3-week multimodal, individualized prehabilitation program including exercise therapy, nutritional intervention, mobility or balance training, and psychosocial interventions and medical assessment. The frequency of the supervised prehabilitation is 5 times/week for 3 weeks. The primary endpoint is defined as the level of care dependency 12 months after surgery or intervention.

DISCUSSION

Prehabilitation has been proven to be effective for different populations, including colorectal, transplant, and cardiac surgery patients. In contrast, evidence for prehabilitation in older, frail patients has not been clearly established. To the best of our knowledge, this is currently the largest prehabilitation study on older people with frailty undergoing general elective surgery.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04418271 . Registered on 5 June 2020. Universal Trial Number (UTN): U1111-1253-4820.

Engaging TEAM Medicine in Patient Care: Redefining Cancer Survivorship From Diagnosis

New approaches to cancer survivorship care must address the rising number of survivors who need complex care; the need to personalize care to improve health equity; workforce shortages and clinician knowledge deficits about the long-term and late effects of cancer; the need to engage and coordinate oncology, primary care, and a large multidisciplinary team of subspecialists and programs to meet survivors' needs; and the need to control costs and deliver better value. This review proposes eight core tenets of an evolved standard of care to meet these needs by starting at diagnosis and continuing throughout oncology and into follow-up to: (1) facilitate team medicine by connecting oncology, primary care, subspecialists and programs, researchers, and patients and caregivers; (2) educate patients and support them in self-management; (3) mitigate toxicities; (4) manage comorbidities; (5) promote healthy behaviors and wellness; (6) improve health equity; (7) provide clear personalized follow-up; and (8) provide ongoing opportunities for participation in research as the standard of care. Strategies to successfully implement this care are discussed from the perspectives of oncology, primary care, and health care administration.

The European Hernia Society Prehabilitation Project: a systematic review of patient prehabilitation prior to ventral hernia surgery

BACKGROUND

Ventral hernia repair is one of the most commonly performed surgical procedures worldwide. To reduce the risk of complications, patient prehabilitation has received increasing focus in recent years. To assess prehabilitation measures, this European Hernia Society endorsed project was launched. The aim of this systematic review was to evaluate the current literature on patient prehabilitation prior to ventral hernia repair.

METHODS

The strategies examined were optimization of renal disease, obesity, nutrition, physical exercise, COPD, diabetes and smoking cessation. For each topic, a separate literature search was conducted, allowing for seven different sub-reviews.

RESULTS

A limited amount of well-conducted research studies evaluating prehabilitation prior to ventral hernia surgery was found. The primary findings showed that smoking cessation and weight loss for obese patients led to reduced risks of complications after abdominal wall reconstruction.

CONCLUSION

Prehabilitation prior to ventral hernia repair may be widely used; however, the literature supporting its use is limited. Future studies evaluating the impact of prehabilitation before ventral hernia surgery are warranted.

To Feed or Not to Feed - Nutritional Risk Assessment and Support in Elective Colorectal Surgery. A Prospective Study on the Effect of Screening

Colorectal cancer (CRC) is the third most common malignant tumor and resection remains the key element in its treatment. The correction of preoperative malnutrition reduces morbidity and mortality. Our study demonstrates a nutritional state mass screening protocol to steer nutritional support. Two hundred fifty-nine patients with planned colorectal resection were prospectively enrolled. Preoperative telemedicinal assessment determined the risk of malnutrition using Nutritional Risk Screening 2002 (NRS 2002) score. Patients with a score ≥3 were offered optimized oral nutritional supplement. Three groups were investigated. Group I (NRS 2002 < 3, n = 98) received no supplement. Group II- (NRS 2002 ≥ 3, n = 118) was offered but did not finally receive clinical nutrition. Group II+ (NRS 2002 ≥ 3, n = 43) accepted and received adequate clinical nutrition. 98 patients (37.8%) had no risk, 154 patients (59.5%) had increased risk and 7 (2.7%) had severe malnutrition. Severe complications (Clavien-Dindo >2) rate was similar in Group I (2%) and Group II+ (2.3%) with no mortality. Severe complications more often occurred in Group II- (5.1%) along with 1.7% mortality (p > 0.05). Length of stay was the highest in Group II- while the lowest in Group II+ (p < 0.01). Preoperative telemedicinal screening is applicable in identifying patients with malnutrition. NRS 2002 used by a nutritional team reduces length of stay.

Application of ERAS Protocol after VATS Surgery for Chronic Empyema in Immunocompromised Patients

Enhanced recovery after surgery protocols have shown improved clinical outcomes after lung resection surgery, but their application after empyema surgery is still limited. We retrospectively evaluated the outcomes of an adapted enhanced recovery after surgery (ERAS) protocol for immunocompromised patients who underwent video-assisted thoracoscopic surgery (VATS) surgery for chronic empyema between December 2013 and December 2021. The patients were divided into an ERAS group and a conventional treatment group. Peri-operative data were collected and compared between the two groups. The primary outcome was post-operative length of stay. Secondary outcomes were post-operative pain and post-operative complications (air leaks, atelectasis). A total of 86 patients, 45 in the ERAS group and 41 in the non-ERAS group, were considered. Chest tube duration (6.4 ± 2.3 vs. 13.6 ± 6.8 days) and post-operative length of stay (7.6 ± 1.6 vs. 16.9 ± 6.9 days) were significantly shorter in the ERAS group. The volume of chest drainage (103 ± 78 vs. 157 ± 89 mL/day) was significantly smaller in the ERAS group. There were no significant differences in operative time, blood loss, need for transfusion, tube reinsertion and median VAS score. The incidence of air leaks and atelectasis was significantly reduced in the ERAS group, as was the need for bronchoscopic aspiration. The application of an ERAS protocol after empyema VATS surgery for immunocompromised patients improved the surgical outcome, reducing the post-operative length of stay and rate of complications.

Bridged repair of large ventral hernia defects using an ovine reinforced biologic: A case series

Introduction

Of all hernia types, large ventral hernias have the most impact on patient quality of life, however they are also the most difficult type of hernia to repair and are associated with high rates of complications. This case series describes repair of large ventral hernias with an ovine reinforced biologic in a complex patient cohort with comorbidities and concomitant procedures.

Methods

The author performed bridged repair with an ovine reinforced biologic in 19 consecutive high-risk patients over a 5-year period. In all cases the reinforced biologic was used as an underlay.

Outcomes

Of the 19 patients, six (32%) experienced a surgical site occurrence including infection, seroma, abscess, fistula, bioloma, or bowel obstruction. Three patients (16%) had recurrences with two out of three of the recurrences occurring within 6 months of surgery.

Conclusions

Rates of SSO's and recurrences using ovine reinforced tissue matrix (RTM) were in line with or better than other published studies of bridged repair utilizing biologic or synthetic mesh reinforcement. Ovine RTM's should therefore be considered in complex large ventral hernia repairs.

•

Large ventral hernias greatly impact patient quality of life.

•

In some cases, large ventral hernias necessitate bridged repair with mesh.

•

19 patients received bridged repair with an ovine reinforced matrix.

•

Mean follow up of 23 months showed low complication and recurrence rates.

Comparative associations of baseline frailty status and age with postoperative mortality and duration of hospital stay following metastatic brain tumor resection

Metastatic brain tumors are the most common intracranial neoplasms diagnosed in the United States. Although baseline frailty status has been validated as a robust predictor of morbidity and mortality across various surgical disciplines, evidence within cranial neurosurgical oncology is limited. Adult metastatic brain tumor patients treated with resection were identified in the National Inpatient Sample during the period of 2015-2018. Frailty was quantified using the 11-point modified frailty index (mFI-11) and its association with clinical endpoints was evaluated through complex samples multivariable logistic regression and receiver operating characteristic (ROC) curve analyses. Among 13,650 metastatic brain tumor patients identified (mean age 62.8 years), 26.8% (n = 3665) were robust (mFI = 0), 31.4% (n = 4660) were pre-frail (mFI = 1), 23.2% (n = 3165) were frail (mFI = 2), and 15.8% (n = 2160) were severely frail (mFI ≥ 3). On univariable assessment, these cohorts stratified by increasing frailty were significantly associated with postoperative complications (13.6%, 15.9%, 23.9%, 26.4%; p < 0.001), mortality (1.2%, 1.4%, 2.7%, 3.2%; p = 0.028), and extended length of stay (eLOS) (15.7%, 22.5%, 28.9%, 37.7%; p < 0.001). Following multivariable logistic regression analysis, frailty (by mFI-11) was independently associated with postoperative mortality (aOR 1.34, 95% CI 1.08, 1.65) and eLOS (aOR 1.26, 95% CI 1.17, 1.37), while increasing age was not associated with these endpoints. ROC curve analysis demonstrated superior discrimination of frailty (by mFI-11) in comparison with age for both mortality (AUC 0.61 vs. 0.58) and eLOS (AUC 0.61 vs. 0.53). Further statistical assessment through propensity score adjustment and decision tree analysis confirmed and extended the findings of the primary analytical models. Frailty may be a more robust predictor of postoperative outcomes in comparison with age following metastatic brain tumor resection.

Prehabilitation for medically frail patients undergoing surgery for epithelial ovarian cancer: a cost-effectiveness analysis

Objective

To assess the potential cost-effectiveness of prehabilitation in medically frail patients undergoing surgery for epithelial ovarian cancer (EOC).

Methods

We created a cost-effectiveness model evaluating the impact of prehabilitation on a cohort of medically frail women undergoing primary surgical intervention for EOC. Cost was assessed from the healthcare system perspective via (1) inpatient charges from 2018–2019 institutional Diagnostic Related Grouping data for surgeries with and without major complications; (2) nursing facility costs from published market surveys. Major complication and non-home discharge rates were estimated from the literature. Based on published pilot studies, prehabilitation was determined to decrease these rates. Incremental cost-effectiveness ratio for cost per life year saved utilized a willingness-to-pay threshold of $100,000/life year. Modeling was performed with TreeAge software.

Results

In a cohort of 4,415 women, prehabilitation would cost $371.1 Million (M) versus $404.9 M for usual care, a cost saving of $33.8 M/year. Cost of care per patient with prehabilitation was $84,053; usual care was $91,713. When analyzed for cost-effectiveness, usual care was dominated by prehabilitation, indicating prehabilitation was associated with both increased effectiveness and decreased cost compared with usual care. Sensitivity analysis showed prehabilitation was more cost effective up to a cost of intervention of $9,418/patient.

Conclusion

Prehabilitation appears to be a cost-saving method to decrease healthcare system costs via two improved outcomes: lower complication rates and decreased care facility requirements. It represents a novel strategy to optimize healthcare efficiency. Prospective studies should be performed to better characterize these interventions in medically frail patients with EOC.

Prehabilitation cost-effectiveness analysis was performed for medically frail epithelial ovarian cancer patients undergoing surgery. It was cost-saving for the healthcare system via lower complication rates and discharge care requirements. Prehabilitation was cost effective up to a cost of $9,418/patient.

Effect of Exercise Training on Quality of Life after Colorectal and Lung Cancer Surgery: A Meta-Analysis

Surgical treatment affects health-related quality of life (HRQoL) and increases fatigue symptoms in patients with lung cancer (LC) and colorectal cancer (CRC). We aimed to systematically review the effect of exercise training on HRQoL and fatigue after LC and CRC surgery. Randomized controlled trials published before 21 March 2021, were searched in PubMed, Scopus, Web of Science, SPORTDiscus and PEDro. Eligible trials compared the effect of exercise interventions initiated preoperatively or in the first 3 months after surgery versus usual care on postoperative HRQoL and fatigue. Standardized mean differences (SMD) were pooled using random-effects models. Twelve studies with a total of 777 patients were included. In LC patients (10 studies, n = 651), exercise training in general led to a moderate improvement in the physical domain of HRQoL (0.68: 95% CI: [0.47; 0.89]) and a small reduction in fatigue levels after surgery (SMD = 0.28: 95% CI: [0.02; 0.53]), while no effects were found in other HRQoL domains. In CRC (two studies, n = 126), exercise training showed no effects on HRQoL and fatigue after surgery. Exercise training is an effective intervention to improve physical function and fatigue after LC surgery. Further studies are necessary to clarify the effects of exercise on HRQoL and fatigue after CRC surgery.

A randomized trial comparing inspiratory training and positive pressure training in immediate lung recovery after minor pleuro-pulmonary surgery

Background

Two respiratory physiotherapy modalities were compared in a randomized controlled trial on patients undergoing minor pleuro-pulmonary surgery.

Methods

Forty-five patients were randomly allocated into positive expiratory pressure (PEP) therapy (n=23) and inspiratory muscle training (IMT) groups (n=22). Individualized group specific physiotherapeutic guidance was administered preoperatively, and once a day postoperatively. Patients also performed independent exercises and kept a logbook. Pain was assessed on a numerical reference scale (NRS). Volumetric pulmonary function values and walking distance were recorded preoperatively, and on first (POD1) and second postoperative days (POD2). Pre- and postoperative values were compared using two-way repeated measures analysis of variance.

Results

Patient characteristics and pleuro-pulmonary interventions were similar between the groups. Thoracotomy was performed in 14/45 and video assisted surgery (VATS) in 31/45 of cases. Preoperative volumetric pulmonary functions were normal or slightly decreased in 29/45, and fell significantly (P<0.001) on the first postoperative day (POD1) and improved but remained significantly lower on the second postoperative day. The recovery of mean FEV1, FIV1 and FIVC values was greater in the IMT than in the PEP group between POD1 and POD2, but without significant difference. The corresponding relative to preoperative values were higher in the IMT group, with a significant difference in FEV1 (P=0.045). Also relative PEF and FIV1 values seemed to be slightly higher in the IMT compared to the PEP group, but not significantly. Average NRS values for pain were lower in the IMT group (P=0.010) but only on POD1. Air leak was noted in 4/45 patients, two in each group, on POD1, and two in PEP groups and one in IMT group on POD2. Mean measured walking distances between groups did not differ. Mean hospital stay was 4 days in the PEP group and 3 days in the IMT group. There was no hospital mortality.

Conclusions

Pulmonary function values decreased significantly after minor lung resections, supporting rehabilitative respiratory physiotherapy to avoid postoperative pulmonary complications (PPCs). Both PEP and IMT training were well tolerated and equally efficient when comparing spirometry values at three time points. IMT appeared advantageous regarding relative FEV1 recovery and immediate postoperative pain.

The effectiveness of pre- and post-operative rehabilitation for lung cancer: A systematic review and meta-analysis on postoperative pulmonary complications and length of hospital stay

OBJECTIVE

To investigate the effects of rehabilitation either before or after operation for lung cancer on postoperative pulmonary complications and the length of hospital stay.

DATA SOURCES

MEDLINE, Cochrane Central Register of Controlled Trials, Web of Science, CINAHL Plus, SPORTDiscus, PsycInfo and Embase were searched from inception until June 2021.

REVIEW METHODS

Inclusion criteria were patients scheduled to undergo or had undergone operation for lung cancer, randomised controlled trials comparing rehabilitative interventions initiated before hospital discharge to usual care control. Two reviewers independently assessed eligibility, extracted data and risks of bias. Pooled odds ratios (ORs) or standardised mean differences (SMDs) with 95% Confidence Intervals (CI) were estimated using random-effects meta-analyses.

RESULTS

Twenty-three studies were included (12 preoperative, 10 postoperative and 1 perioperative), with 2068 participants. The pooled postoperative pulmonary complication risk and length of hospital stay were reduced after preoperative interventions (OR = 0.32; 95% CI = 0.22, 0.47; I² = 0.0% and SMD = -1.68 days, 95% CI = -2.23, -1.13; I² = 77.8%, respectively). Interventions delivered during the immediate postoperative period did not have any significant effects on either postoperative pulmonary complication or length of hospital stay (OR = 0.85; 95% CI = 0.56, 1.29; I² = 0.0% and SMD = -0.23 days, 95% CI = -1.08, 0.63; I² = 64.6%, respectively). Meta-regression showed an association between a higher number of supervised sessions and shorter hospital length of stay in preoperative studies (β = -0.17, 95% CI = -0.29, -0.05).

CONCLUSION

Preoperative rehabilitation is effective in reducing postoperative pulmonary complications and length of hospital stay associated with lung cancer surgery. Short-term postoperative rehabilitation in inpatient settings is probably ineffective.

Perioperative anaesthetic management of patients undergoing thoracic cytoreductive surgery and HITHOC

Historically, patients with pleural malignant mesothelioma have had a poor prognosis and survival rate. Recently, new surgical approaches and chemotherapy delivery techniques have been developed. One of this treatment options is thoracic cytoreductive surgery and HITHOC (hyperthermic intrathoracic chemotherapy perfusion), a promising strategy in selected patients, offering significantly longer median survival length and tumour-free survival rate. However, there is little experience and little is known regarding the optimal perioperative management of this patients. Given that they usually present with poor preoperative status and the surgery is aggressive, prolonged and associated with significant hemodynamic repercussions, this procedure poses a true challenge to the anaesthesiologist. We will discuss optimal patient selection and optimization, as well as premedication, recommended monitoring aspects on top of the usual for any anaesthetic procedure, induction and anaesthetic agents, blood management and one lung ventilation. Also, we expose the importance of adequate pain control during the surgery and postoperatively, the hemodynamic disturbances that occur during the procedure and the potential complications that could occur afterwards. In a few words, this review intends to offer recommendations for the management of patients undergoing cytoreductive surgery and HITHOC for the perioperative care, based on the scarce evidence and our clinical experience.

Video-assisted thoracoscopic surgery for primary lung cancer resections in patients with moderate to severe chronic obstructive pulmonary diseases

Background

Lung cancer patients with chronic obstructive pulmonary disease (COPD) are considered a high-risk population to receive radical surgical treatment due to the high incidence of cardiopulmonary complications. The aim of this study was to evaluate the clinical factors associated with postoperative complications in primary lung cancer patients with moderate to extremely severe grades of COPD.

Methods

From December 2015 to June 2020, 138 patients with moderate to extremely severe COPD who underwent video-assisted thoracoscopic surgery (VATS) lung cancer resection (lobectomy or sublobar resection) were retrospectively reviewed. Patients' postoperative complications were collected from clinical records. Clinical factors (such as COPD severity or surgical approaches, etc.) were evaluated to investigate the association with postoperative complications.

Results

Of the 138 patients included in the study, the mean age was 67 (63-74) years, the mean preoperative forced expiratory volume in one second (FEV1) was 1.33±0.39 L, the mean FEV1% was 51.23% (41.43-60.00%). 33% patients (46/138) had postoperative complications, and no mortality occurred. Univariate analysis revealed that incidence of overall complications (OCs) and respiratory complications (RCs) was markedly higher in extremely severe COPD patients compared to moderate (OCs, P=0.033; RCs, P=0.050) and severe (OCs, P=0.015; RCs, P=0.008) COPD patients, respectively. Multivariate analysis showed that COPD grade was an independent risk factor of RCs (P=0.024). Furthermore, the grades of COPD (moderate, P=0.029; severe, P=0.028; extremely severe, P=0.019) and the surgical procedure (lobectomy or sublobar resection, P=0.043) were independent risk factors for atelectasis, which was the most common postoperative complication.

Conclusions

The aggravation of COPD was accompanied by an increase in the incidence of respiratory system complications postoperatively, especially atelectasis. For patients with moderate to extremely severe grades of COPD, careful perioperative evaluation should be performed to identify the indicators that influence the surgical choice between lobectomy and sublobar resection.

New developments in locally advanced nonsmall cell lung cancer

Locally advanced nonsmall cell lung cancer, due to its varying prognosis, is grouped according to TNM stage IIIA, IIIB and IIIC. Developments over the last 3 years have been focused on the integration of immunotherapy into the combination treatment of a locally definitive therapy (surgery or radiotherapy) and chemotherapy. For concurrent chemoradiotherapy, consolidation therapy with durvalumab was established. Adjuvant targeted therapy has again gained increasing interest. In order to adapt treatment to the specific stage subgroup and its prognosis, fluorodeoxyglucose positron emission tomography/computed tomography and pathological evaluation of the mediastinum are important. Tumours should be investigated for immunological features and driver mutations. Regarding toxicity, evaluation of pulmonary and cardiac function, as well as symptoms and quality of life, is of increasing importance. To improve the management and prognosis of this heterogeneous entity, clinical trials and registries should take these factors into account.

Preoperative Medical Referral Prior to Hepatopancreatic Surgery-Is It Worth it?

INTRODUCTION

Many patients who present for complex surgery have underlying medical comorbidities. While surgeons often refer these patients to medical appointments for preoperative "optimization" or "clearance," the actual impact of these visits remains poorly examined. The objective of the current study was to define the potential benefit of preoperative medical appointments on outcomes and costs associated with hepatopancreatic (HP) surgery.

METHODS

Patients with modifiable comorbidities undergoing HP surgery were identified in the Medicare claims data. The association of preoperative non-surgical visit and postoperative outcomes and expenditures was assessed using inverse propensity treatment weighting analysis and multivariable logistic regression.

RESULTS

Among the 5574 Medicare beneficiaries who underwent a hepatopancreatic surgery, one in seven patients (n = 830, 14.9%) was "optimized" preoperatively. On multivariable logistic regression analysis, age (OR 1.02; 95% CI 1.01-1.03; p = 0.006) and higher comorbidity burden (OR 1.03; 95% CI 1.01-1.05; p = 0.007) were associated with modest increased odds of being referred in the preoperative period for a non-surgical evaluation; the factor most associated with preoperative non-surgical visit was male patient sex (OR 1.33; 95% CI 1.14-1.56; p < 0.001). After adjustment for competing risk factors and random site effect, patients with an "optimization" visit had 28% lower odds (OR 0.72; 95% CI 0.59-0.86; p < 0.001) of experiencing an operative complication. Additionally, patients who had a non-surgical visit had 13% higher median total expenditures compared with individuals who did not undergo an "optimization" visit (p < 0.05).

CONCLUSION

In conclusion, roughly one in seven Medicare beneficiaries who underwent HP surgery may have been risk stratified by a non-surgical provider prior to surgery. Preoperative evaluation was associated with modestly lower odds of complications following HP surgery and higher Medicare expenditures. Further research is needed to determine its routine utility as a means to decrease the morbidity surrounding HP surgery.

Usability and Preliminary Effectiveness of a Preoperative mHealth App for People Undergoing Major Surgery: Pilot Randomized Controlled Trial

BACKGROUND

Major surgery is associated with negative postoperative outcomes such as complications and delayed or poor recovery. Multimodal prehabilitation can help to reduce the negative effects of major surgery. Offering prehabilitation by means of mobile health (mHealth) could be an effective new approach.

OBJECTIVE

The objectives of this pilot study were to (1) evaluate the usability of the Be Prepared mHealth app prototype for people undergoing major surgery, (2) explore whether the app was capable of bringing about a change in risk behaviors, and (3) estimate a preliminary effect of the app on functional recovery after major surgery.

METHODS

A mixed-methods pilot randomized controlled trial was conducted in two Dutch academic hospitals. In total, 86 people undergoing major surgery participated. Participants in the intervention group received access to the Be Prepared app, a smartphone app using behavior change techniques to address risk behavior prior to surgery. Both groups received care as usual. Usability (System Usability Scale), change in risk behaviors 3 days prior to surgery, and functional recovery 30 days after discharge from hospital (Patient-Reported Outcomes Measurement Information System physical functioning 8-item short form) were assessed using online questionnaires. Quantitative data were analyzed using descriptive statistics, chi-square tests, and multivariable linear regression. Semistructured interviews about the usability of the app were conducted with 12 participants in the intervention group. Thematic analysis was used to analyze qualitative data.

RESULTS

Seventy-nine people-40 in the intervention group and 39 in the control group-were available for further analysis. Participants had a median age of 61 (interquartile range 51.0-68.0) years. The System Usability Scale showed that patients considered the Be Prepared app to have acceptable usability (mean 68.2 [SD 18.4]). Interviews supported the usability of the app. The major point of improvement identified was further personalization of the app. Compared with the control group, the intervention group showed an increase in self-reported physical activity and muscle strengthening activities prior to surgery. Also, 2 of 2 frequent alcohol users in the intervention group versus 1 of 9 in the control group drank less alcohol in the run-up to surgery. No difference was found in change of smoking cessation. Between-group analysis showed no meaningful differences in functional recovery after correction for baseline values (β=-2.4 [95% CI -5.9 to 1.1]).

CONCLUSIONS

The Be Prepared app prototype shows potential in terms of usability and changing risk behavior prior to major surgery. No preliminary effect of the app on functional recovery was found. Points of improvement have been identified with which the app and future research can be optimized.

TRIAL REGISTRATION

Netherlands Trial Registry NL8623; https://www.trialregister.nl/trial/8623.