Abstract
Management of acute and chronic pain after thoracic surgery for pulmonary resection or thymectomy remains a challenge for both thoracic surgeons and anesthesiologists. Advances in minimally invasive robotic procedures have made subcostal Outside the Cage (OTC) resections possible, but the procedure’s pain benefits have not been previously measured. A single center cohort was consented to undergo robotic-assisted thoracoscopic surgery (RATS) with an OTC or Transthoracic (TT) approach. On every post-operative day (POD), patients were asked to complete the Visual Analogue Scale (VAS) of Pain, assigning a score of 0–10 with higher scores equaling higher pain intensity. Additionally, patients’ opioid consumption was recorded and classified using Morphine Equivalent Dose (MED). Descriptive statistics of demographics, Mann-Whitney, and Chi-squared tests were performed in a matched analysis. Altogether, 50 OTC patients and 50 TT patients were included. For each group, 1 pneumonectomy, 19 lobectomies, 10 segmentectomies, and 20 thymectomies were performed. Between groups, most were male (n = 54; p = 0.42) and there were no differences in American Society of Anesthesiologists scores (p = 0.51), or tobacco consumption (p = 0.45). Patients who received an OTC approach experienced significantly lower pain scores on POD-0 (p = 0.001), POD-1 (p < 0.001), and POD-2 (p < 0.001). POD-3 OTC VAS scores were not different from the TT group (p = 0.09). Similarly, MED was lower for the OTC group on POD-0 (p < 0.001), POD-1 (p = 0.03), and POD-3 (p = 0.03). The RATS-OTC approach results in a more rapid decrease in self-reported pain by the patient as well as significantly lower levels of MED.