Medical Complications and Prognostic Factors for Medically Unstable Conditions During Acute Inpatient Cancer Rehabilitation

PURPOSE: Acute inpatient rehabilitation provides concurrent medical care and intensive rehabilitation. We sought to describe the nature of types of medical complications and to identify the more frequent types of medical complications management in patients with cancer undergoing acute inpatient rehabilitation. METHODS: We reviewed the records of all consecutive patients admitted to acute inpatient rehabilitation from September 1, 2017, through February 28, 2018. Presenting problem noted to be a significant change in medical status using the Centers for Medicare & Medicaid Services' Evaluation and Management Service Guide was defined as a medical complication. We recorded demographic and clinical characteristics. Multivariable logistic regression analysis was performed to assess prognostic factors for returning to acute care. RESULTS: Among 165 evaluable patients, 158 (96%) had at least one medical complication, and 31 (19%) had an unplanned return to acute care. After excluding three patients who had planned return to acute care, there was a cohort of 162 patients and the most common medical complication categories were electrolyte abnormalities 81 (50%), musculoskeletal 70 (43%), genitourinary or renal 61 (38%), hematologic 58 (36%), and cardiovascular problems 46 (28%). Multivariable analysis showed that tachycardia (odds ratio [OR], 7.83; 95% CI, 2.23 to 27.54; P = .001) and weekly or more frequent RBC transfusions (OR, 5.23; 95% CI, 1.39 to 19.64; P = .014) were independently associated with unplanned return to acute care. CONCLUSION: A high frequency and wide range of medical complications and interventions occur in patients with cancer undergoing acute inpatient rehabilitation. Close monitoring and expertise are needed for this patient population.