Influence of preoperative exercise capacity on length of stay after thoracic cancer surgery

Association Between Patient Physical Function and Length of Stay After Thoracoscopic Lung Cancer Surgery

Patient-reported outcomes (PRO) are an ideal method for measuring patient functional status. We sought to evaluate whether preoperative PRO were associated with resource utilization. We hypothesize that higher preoperative physical function PRO scores, measured via the NIH-sponsored Patient Reported Outcome Measurement Information System (PROMIS), are associated with shorter length of stay (LOS). Preoperative physical function scores were obtained using NIH PROMIS in a prospective observational study of patients undergoing minimally invasive surgery for lung cancer. Poisson regression models were constructed to estimate the association between the length of stay and PROMIS physical function T-score, adjusting for extent of resection, age, gender, and race. Due to the significant interaction between postoperative complications and physical function T-score, the relationship between physical function and LOS was described separately for each complication status. A total of 123 patients were included; 88 lobectomy, 35 sublobar resections. Mean age was 67 years, 35% were male, 65% were Caucasian. Among patients who had a postoperative complication, a lower preoperative physical function T-score was associated with progressively increasing LOS (P  value = 0.006). In particular, LOS decreased by 18% for every 10-point increase in physical function T-score. Among patients without complications, T-score was not associated with LOS (P = 0.86). Preoperative physical function measured via PRO identifies patients who are at risk for longer LOS following thoracoscopic lung cancer surgery. In addition to its utility for preoperative counseling and planning, these data may be useful in identifying patients who may benefit from risk-reduction measures.

Evaluation of Risk for Thoracic Surgery

Modern surgical practice places increased emphasis on treatment outcomes. There has been a paradigm shift from paternalistic ways of practicing medicine to patients having a major involvement in decision making and treatment planning. The combination of these two factors undoubtedly leaves the surgeon open to greater scrutiny in respect of results and outcomes. In dealing with this it is important that the surgeon, wider multidisciplinary team, and patient appreciate the idea of surgical risk. This article reviews the latest evidence relating to risk assessment in thoracic surgery and suggests how this should be incorporated into clinical practice.

Usual physical activity and subsequent hospital usage over 20 years in a general population: the EPIC-Norfolk cohort

Background

While physical activity interventions have been reported to reduce hospital stays, it is not clear if, in the general population, usual physical activity patterns may be associated with subsequent hospital use independently of other lifestyle factors.

Objective

We examined the relationship between reported usual physical activity and subsequent admissions to hospital and time spent in hospital for 11,228 men and 13,786 women aged 40–79 years in the general population.

Methods

Participants from a British prospective population-based cohort study were followed for 20 years (1999–2019) using record linkage to document hospital usage. Total physical activity was estimated by combining workplace and leisure time activity reported in a baseline lifestyle questionnaire and repeated in a subset at a second time point approximately 12 years later.

Results

Compared to those reporting no physical activity, participants who were the most active had a lower likelihood of spending more than 20 days in hospital odds ratio (OR) 0.88 (95% confidence interval (CI) 0.81–0.96) over the next 20 years after multivariable adjustment for age, sex, smoking status, education, social class and body mass index. Participants reporting any activity had a mean of 0.42 fewer hospital days per year between 1999 and 2009 compared to inactive participants, an estimated potential saving to the National Health Service (NHS) of £247 per person per year, or approximately 7% of UK health expenditure. Participants who remained physically active or became active 12 years later had lower risk of subsequent hospital usage than those who remained inactive or became inactive, p-trend < 0.001.

Conclusion

Usual physical activity in this middle-aged and older population predicts lower future hospitalisations - time spent in hospital and number of admissions independently of behavioural and sociodemographic factors. Small feasible differences in usual physical activity in the general population may potentially have a substantial impact on hospital usage and costs.

Preoperative exercise and recovery after cardiac surgery: a meta-analysis

BACKGROUND

To evaluate the association between preoperative exercise and recovery after cardiac surgery.

METHODS

Literature comparing preoperative exercise and the control group for patients receiving cardiac surgery was retrieved in multiple databases. Review Manager 5.2 was adopted for meta-analysis, sensitivity analysis and bias analysis.

RESULTS

Finally, 6 relevant studies satisfied the inclusion criteria. There was significant difference in length of stay in intensive care unit (ICU) (MD- = 1.35, 95%CI [- 2.64, - 0.06], P = 0.04; P for heterogeneity < 0.0001, I2 = 88%) and physical function after operation (P of heterogeneity = 0.32, I2 = 12%, Z = 9.92, P of over effect< 0.00001). The meta-analysis suggested that there was no significant difference in white blood cell count (WBC) at postoperative day 7 and mental health after operation between the exercise group and the control group. Limited publication bias was observed in this study.

CONCLUSION

Preoperative exercise including inhaled muscle training, aerobics, resistance training and stretching could promote recovery after cardiac surgery.

The key questions in rehabilitation in thoracic surgery

Enhancing the recovery of patients undergoing Thoracic Surgery is the raison d'être of a pulmonary rehabilitation (PR) process. Benefits of a PR program have been shown to include reduced postoperative complications, hospital length of stay (LOS) and improved exercise and lung function parameters. Identifying which groups of patients benefit most and the constituency of the perfect PR program is subject to ongoing research. Providing PR to patients in a manner acceptable to their lifestyle and disease timeline within economic limitations is the challenge.

Performance in the 6-minute walk test and postoperative pulmonary complications in pulmonary surgery: an observational study

OBJECTIVES:

To assess functional capacity in the preoperative phase of pulmonary surgery by comparing predicted and obtained values for the six-minute walk test (6MWT) in patients with and without postoperative pulmonary complication (PPC)

METHOD:

Twenty-one patients in the preoperative phase of open thoracotomy were evaluated using the 6MWT, followed by monitoring of the postoperative evolution of each participant who underwent the routine treatment. Participants were then divided into two groups: the group with PPC and the group without PPC. The results were also compared with the predicted values using reference equations for the 6MWT

RESULTS:

Over half (57.14%) of patients developed PPC. The 6MWT was associated with the odds for PPC (odds ratio=22, p=0.01); the group without PPC in the postoperative period walked 422.38 (SD=72.18) meters during the 6MWT, while the group with PPC walked an average of 340.89 (SD=100.93) meters (p=0.02). The distance traveled by the group without PPC was 80% of the predicted value, whereas the group with PPC averaged less than 70% (p=0.03), with more appropriate predicted values for the reference equations

CONCLUSIONS:

The 6MWT is an easy, safe, and feasible test for routine preoperative evaluation in pulmonary surgery and may indicate patients with a higher chance of developing PPC.

A systematic review of pre-surgical exercise intervention studies with cancer patients

BACKGROUND

Recent reviews suggest that enhancing fitness and functional capacity prior to surgery can accelerate post-surgery recovery and reduce mortality. However, the effect of pre-surgical exercise interventions in cancer patients is not fully explained. The aim of this paper is to systematically review the available literature regarding pre-surgery exercise training interventions in cancer patients and examine their effects on physiological outcomes as well as quality of life (QOL) and length of hospital stay.

METHODS

Relevant studies were identified through a search on MEDLINE, PreMEDLINE, AMED, MEDLINE Daily Update, CINAHL and SPORTDiscus. All randomized controlled trials (RCTs) and non-RCTs that had some form of physical exercise undertaken prior to surgery were included. Descriptive characteristics such as participant characteristics, study design, types of cancer, length of study, and primary outcomes were extracted. Methodological rigour was assessed using a modified Delphi List. Due to the heterogeneity and the dearth of pre-surgical studies, we were limited to a systematic review rather than a meta-analysis.

RESULTS

Eighteen studies were included consisting of a total of 966 participants. Lung cancer studies were the predominant group represented. Most of the studies prescribed an aerobic intervention programs done prior to surgery. Mode, frequency, duration, and intensity of exercise intervention varied across the different cancer groups. The majority of studies showed preliminary positive change in clinical outcomes with significant improvements in the rate of incontinence, functional walking capacity and cardiorespiratory fitness.

CONCLUSION

Pre-surgical exercise may benefit cancer patients through positive effects on function and physical capacity. Surgical oncologists may consider pre-surgical exercise interventions as a potential adjuvant therapy to improve patients' outcomes.

Comparison between actual and predicted postoperative stair-climbing test, walk test and spirometric values in patients undergoing lung resection

PURPOSE

To assess whether the tests - Forced Expiratory Volume at one second (FEV₁), 6-minute walk test (6MWT) and stair-climbing test (SCT) showed proportional changes after the resection of functioning lung.

METHODS

Candidates for pulmonary resection were included. Spirometry, 6MWT and SCT were performed preoperatively (pre) and at least 3 months after surgery (pos). SCT was performed on a staircase with a total ascent height of 12.16m. The time taken to climb the total height the fastest possible was defined as stair-climbing time (SCt). Number of functioning segments lost, was used to calculated predicted postoperative (ppo) tests values. Pre, ppo and pos values for each test were compared. Data were analyzed by repeated-measure ANOVA with significance level set at 5%.

RESULTS

A total of 40 patients were enrolled. Pulmonary resection results ranged from gain of 2 functioning segments to loss of 9. Pre, ppo and pos values were the following: preFEV₁ = 2.6±0.8L, ppo FEV₁ =2.3±0.8L, and pos FEV₁=2.3±0.8L, (pre FEV₁ > ppo FEV₁ = pos FEV₁); pre6MWT = 604±63m, ppo6MWT= 529±103m, pos6MWT= 599±74m (pre6MWT = pos6MWT > ppo6MWT); preSCt = 32.9±7.6s, ppoSCt = 37.8±12.1s, posSCt = 33.7±8.5s (preSCt = posSCt < ppoSCt).

CONCLUSION

In our group of patients, pulmonary resection led to loss of lung function measured by spirometry, but not to exercise capacity measured by stair-climbing and walk tests.

Pretreatment assessment for the optimal management of early-stage lung cancer

Optimal management of non-small cell lung cancer requires treatment approach to be tailored to both the particular disease stage and the overall health and functional status of the patient. Even though surgical resection by means of an anatomic lobectomy remains the treatment of choice with the goal of cure for early-stage lung cancer, it is an invasive procedure with associated morbidity and mortality. Although these risks continue to decrease in the modern era with improvements in surgical technique and perioperative management, the risks are elevated in patients with associated medical comorbidities. As a consequence, patients at potentially increased or high risk for surgical lobectomy need to be identified by a structured preoperative assessment. This has gained increasing importance, given the emergence of alternative treatment approaches such as minimally invasive surgery, less extensive pulmonary resection, and stereotactic body radiation therapy. We review the clinical approach to suspected early-stage lung cancer based on a tumor and patient-centered stratification of risk and benefit.

Patient-related risk factors for postoperative adverse events

PURPOSE OF REVIEW

The risk of adverse outcome in patients undergoing major surgery is affected both by cardiorespiratory fitness, and the presence and severity of comorbidities. Accurate risk stratification is essential for the identification of patients who may benefit from specific perioperative management strategies or from an augmented level of perioperative care. Risk stratification techniques include risk prediction models, assessment of functional capacity and novel biochemical markers. This review examines the evidence for the use of these different techniques in perioperative patients.

RECENT FINDINGS

There remains considerable variation in the predictive ability of risk stratification models, in part due to the subjective nature of some of the component variables. Whereas a basic assessment of functional capacity using structured questionnaires may be helpful, in patients thought to be at high risk, the most accurate technique may be cardiopulmonary exercise testing, although the strength of the hypothesized relationship between functional capacity and perioperative outcome has not been fully defined. There have been advances in the identification and refinement of biochemical markers for risk prediction, in particular, brain natriuretic peptide and C-reactive protein. Currently, few centres routinely systematically utilize these strategies to risk stratify perioperative patients.

SUMMARY

The development of improved risk stratification techniques would be assisted by large-scale epidemiological studies. Improvements to currently used risk prediction models are likely to result from the use of variables which more objectively measure patient health and fitness than current tools, and may use a combination of all the above techniques to improve predictive accuracy.

Postoperative care after pulmonary resection: postanesthesia care unit versus intensive care unit

PURPOSE OF REVIEW

In an effort to maximize resource utilization and contain costs, immediate postoperative care after noncardiac thoracic surgery is often done in either the postanesthesia care unit or dedicated step down units, leaving the ICU for complex surgical cases, overtly high-risk patients, or the treatment of severe postoperative complications. This review analyzes the current modalities affecting length of stay and costs, mainly by allocating patients after elective lung resection to different postoperative areas according to their needs.

RECENT FINDINGS

Several surgical models have been published in recent years with the goal of optimizing perioperative patient care and subsequently decreasing hospital costs and length of stay. The main focus has been on elective lung resection for lung cancer. Preoperative evaluation, changes in surgical and anesthetic techniques as well as careful planning on where to recover these patients seem to make a clinical and financial impact.

SUMMARY

The development of models to help predict elective ICU admission should facilitate optimal care, cutting costs and shortening length of stay after lung resection.

Correlates of physical activity among lung cancer survivors

OBJECTIVE

Lung cancer survivors commonly experience impairments in quality of life, which may be improved through regular physical activity. However, little is known regarding correlates of physical activity in this survivor population. The current study addressed this research gap.

METHODS

The participants were 175 survivors of early-stage non-small cell lung cancer who completed surgical treatment from 1 to 6 years previously. Information regarding medical factors was obtained from chart records and from participant self-report. Participants also answered questions about demographic and social cognitive factors that may be associated with physical activity, which was assessed as reported engagement in moderate/strenuous activities and leisurely walking.

RESULTS

Participants reported an average of 77.7 min of moderate/strenuous weekly activity and 64.6% reported engaging in leisurely walking at least three times per week. Less leisurely walking was reported by older individuals (p=0.001) and those with a lower education level (p<0.001), who also reported less engagement in moderate/strenuous activities (p=0.004). Individuals with poorer pre-operative pulmonary function reported less moderate/strenuous physical activity (p=0.014) and the number of surgical complications was inversely associated with leisurely walking (p=0.003). Multiple social cognitive constructs were associated with moderate/strenuous activity and leisurely walking.

CONCLUSIONS

The study identified several lung cancer survivor subgroups who may be most in need of physical activity interventions. Identification of social cognitive correlates of physical activity provides valuable information regarding theory-guided constructs that should be targeted in future physical activity interventions for lung cancer survivors.

Physical activity among lung cancer survivors: changes across the cancer trajectory and associations with quality of life

BACKGROUND

Regular physical activity may offer benefits to lung cancer survivors, many of whom experience quality-of-life (QOL) impairments. However, little is know about lung cancer survivors' engagement in physical activity across the cancer trajectory. The current study addressed this research gap and also examined the association between lung cancer survivors' physical activity and their QOL.

METHODS

The study participants were 175 individuals who completed surgical treatment for early-stage non-small cell lung cancer 1 to 6 years previously. Participants completed a one-time survey regarding their current QOL and their engagement in physical activities currently, during the 6 months after treatment, and during the 6 months before diagnosis.

RESULTS

Participants' reported engagement in both moderate and strenuous intensity activities was lower during the post-treatment period compared with before diagnosis and at the current time. Engagement in light intensity activities did not differ for the three time points. Almost two-thirds of participants did not engage in sufficient activity to meet national physical activity guidelines for any of the three time points. Lung cancer survivors who currently met physical activity guidelines reported better QOL in multiple domains than less active individuals.

CONCLUSIONS

Engagement in physical activity among lung cancer survivors is particularly low during the early post-treatment period. Current engagement in physical activity is associated with better QOL. However, most lung cancer survivors do not meet physical activity guidelines and may benefit from interventions to promote engagement in regular physical activities.

Guideline-oriented perioperative management of patients with bronchial asthma and chronic obstructive pulmonary disease

Increased airway hyperresponsiveness is a major concern in the perioperative management of patients with bronchial asthma and chronic obstructive pulmonary disease. Guidelines using evidence-based medicine are continually being updated and published regarding the diagnosis, treatment, and prevention of these respiratory disorders. Perioperative management in these patients involves: (1) adequate control of airway hyperresponsiveness, including detection of purulent sputum and infection before surgery; (2) evidence-based control of anesthesia; and (3) the aggressive use of beta-2 adrenergic stimulants and the systemic administration of steroids for the treatment of acute attacks. Good preoperative control, including the use of leukotriene antagonists, can reduce the incidence of life-threatening perioperative complications. Awareness of recent guidelines is thus important in the management of patients with airway hyperresponsiveness. This review covers the most recent guidelines for the perioperative management of patients with bronchial asthma and chronic obstructive pulmonary disease.