Use of a Vacuum Mattress During Laparoscopic Sleeve Gastrectomy to Reduce the Concentration of Rhabdomyolysis Markers and Acute Renal Failure

Acute Kidney Injury, Bariatric Surgery Candidate, Rhabdomyolysis

This prospective clinical trial aimed to assess the usefulness of the usage of a vacuum mattress during laparoscopic sleeve gastrectomy (LSG) in the reduction of levels of rhabdomyolysis markers (myoglobin, creatine kinase, creatinine) and incidence of RML and AKI in the postoperative period. Method Patients A prospective clinical trial has been conducted between January 2015 and December 2022 in a tertiary referral University Hospital (Krakow, Poland). It is designed as a single-center, prospective trial with two intervention arms. During the study, we specified 3 periods: * January 2015 - December 2016 - only standard mattresses were used * January 2017 - December 2019 - both types of mattresses were used * January 2020 - December 2022 - only vacuum mattresses were used Participants Patients aged ≥18 were qualified for LSG due to obesity and divided The first group (Vacuum Mattress group) are those laid on vacuum mattresses during the surgery. The control group consisted of patients for whom a standard operating mattress was used during the surgery. Patients with preoperative chronic renal failure were excluded from the study. Other exclusion criteria were perioperative complications which required postoperative hospitalization at the Intensive Care Unit and Compliance with Enhanced Recovery After Bariatric Surgery (ERABS) Protocol \< 85%. Procedures and perioperative care All patients underwent LSG. Patients were operated in the beach chair position. In the study group, the patient was laid on vacuum mattresses during the surgery. In the case of control group patients, a standard operating mattress was used during the surgery. Perioperative care for all patients was in accordance with the ERABS protocol adopted in our center\[\]. Blood samples were collected on the first postoperative to measure RML markers (myoglobin, creatine kinase, creatinine). Symptoms of RML, AKI, and other complications were monitored for 30 days after surgery. End Point Criteria The primary endpoint is the incidence of postoperative AKI or biochemical or clinical diagnosis of RML which required additional treatment. Secondary endpoints is the concentrations of RML markers (myoglobin, creatine kinase, creatinine) on the first postoperative day

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