Frequency of Sarcopenia, Sarcopenic Obesity, and Changes in Physical Function in Surgical Oncology Patients Referred for Prehabilitation.

PURPOSE: Sarcopenia and suboptimal performance status are associated with postoperative complications and morbidity in cancer patients. Prehabilitation has emerged as an approach to improve fitness and muscle strength in patients preoperatively. We sought to describe the frequency of sarcopenia and sarcopenic obesity (SO) in a cohort of cancer patients referred for prehabilitation and the association between body composition and physical function. METHODS: In this retrospective review of 99 consecutive cancer patients referred for prehabilitation prior to intended oncologic surgery, prehabilitation included physical medicine and rehabilitation (PM&R) physician evaluation of function and physical therapy for individualized home-based exercise. Sarcopenic A was defined using sex-adjusted norms of skeletal muscle (SKM), measured using the sliceOmatic software (TomoVision, 2012) on computed tomography images at baseline. Sarcopenic B was defined by abnormal SKM and physical function. SO was defined as sarcopenia with BMI ≥ 25. Six-minute walk test (6MWT), 5 times sit-to-stand (5×STS), and grip strength were obtained at consultation (baseline) and at preoperative follow-up (if available). RESULTS: Forty-nine patients (49%) were Sarcopenic A, 28 (28%) SO, and 38 (38%) Sarcopenic B. Age was negatively correlated with SKM (P = .0436). There were no significant associations between Sarcopenic A/B or SO with baseline or changes in physical function. Assessed by sex, Sarcopenic A females had low 5×STS (P = .04) and Sarcopenic B females had low GS (P = .037). Sarcopenic B males had low preoperative GS (P = .026). 6MWT and grip strength at baseline were lower than age- and sex-related norms (both P < .001). Preoperatively, 6MWT distance and 5×STS time improved (both P < .001). Functional improvement in the sarcopenic and nonsarcopenic patients did not differ according to sex. CONCLUSIONS: In this cohort of prehabilitation surgical oncology patients, frequencies of sarcopenia and SO were high, and baseline physical function was abnormal but improved significantly regardless of body composition. These findings suggest that patients have considerable prehabilitation needs and are capable of improving with comprehensive care.

Identifying Gaps in Research on Rehabilitation for Patients With Head and Neck Cancer: A Scoping Review.

OBJECTIVES: Examine the amount and nature of research activity in head and neck cancer (HNC) rehabilitation; highlight publication trends, including information about the authors, settings, and study designs; and identify gaps in the existing literature. DATA SOURCES: Eligible studies were identified using PubMed, Embase, and CINAHL databases. STUDY SELECTION: Inclusion criteria included human subjects, English language, publication between 1/1/1990 and 4/30/2017, HNC patients at any timepoint in disease, and evaluation of rehabilitation outcomes as described by the International Classification of Functioning, Disability and Health (ICF) framework. Exclusion criteria included intervention or outcome not specific to rehabilitation or the HNC population, and protocols or abstracts without corresponding full manuscripts. DATA EXTRACTION: An established 6-step scoping review framework was utilized to develop the review protocol. A 3-level review was then performed. Data on eligible studies were collected using a Research Electronic Data Capture (REDCap) tool. DATA SYNTHESIS: Among 2201 publications, 258 met inclusion criteria. Publication rate increased by 390% over the study timeframe. Most studies were observational (n=150). Few were interventional (n=35). The most common interventions focused on chewing or swallowing (n=14), followed by exercise (n=10). Most primary outcome measures fit the ICF definition of impairment; fewer fit the definitions of activity limitation or participation restriction. CONCLUSIONS: Although research volume in HNC rehabilitation is increasing, the literature is dominated by small (≤100 patients), outpatient-based observational studies involving chewing or swallowing-related impairments. More prospective studies in multidisciplinary domains across the cancer care continuum are needed. There is particular need for interventional studies and prospective observational studies. Future studies should evaluate clinically-relevant activity limitations and participation restrictions. Rehabilitation professionals have an important role in the design of future HNC rehabilitation research.