Clinical Research Directory

Autonomic Neural Field Block for Visceral Pain in Minimally Invasive Left-Sided Colectomy

Effective postoperative pain control is a core component of enhanced recovery after surgery (ERAS) pathways in colorectal surgery; however, postoperative pain following minimally invasive left-sided colectomy remains a persistent clinical challenge. Standard multimodal analgesic strategies primarily target somatic pain pathways and may inadequately address visceral postoperative pain, which is mediated through autonomic afferent neural pathways. Residual visceral pain is associated with increased opioid consumption, postoperative nausea and vomiting, delayed recovery, and prolonged length of stay. This prospective, multicenter observational registry evaluates the feasibility and real-world outcomes of an intraoperative autonomic neural field block targeting the superior hypogastric and inferior mesenteric plexuses during minimally invasive left-sided colectomy. The technique is performed under direct visualization as an adjunct to standard ERAS-based analgesic care. The primary outcome is postoperative opioid consumption within the first 24 hours after surgery. Secondary outcomes include opioid use through 48 hours, postoperative nausea and vomiting, antiemetic use, pain scores, length of stay, and readiness for discharge. Data from this registry will inform future comparative studies and help define the role of autonomic neural modulation in perioperative pain management for colorectal surgery.

Advancing Strategies to Optimize the PerIopeRativE Management of PostOperative Nausea and Vomiting (ASPIRE-PONV) Trial

The goal of this prospective, unblinded, pragmatic and repeated crossover trial is to learn if clinical decision support alerts will impact postoperative nausea and vomiting (PONV) prophylaxis and reduce PONV rates in adult patients who have planned surgery with general anesthesia. The main aim is to improve PONV, establishing a scalable Clinical Decision Support (CDS) Tool for personalized PONV prevention. The primary hypothesis is that, compared with standard care, the Anesthesia Workflow-Driven Clinical Decision Support Tool for Personalized PONV Prevention will be associated with a significant improvement in the rate of appropriate administration of PONV prophylaxis and a significant decrease in the incidence of PONV. This study will evaluate a new clinical decision support (CDS) tool designed to improve how and when PONV prevention strategies are used. Unlike traditional tools that provide generic, one-time alerts, this new system is integrated into the electronic health record (EHR) and delivers timely, targeted reminders to anesthesia providers at key moments during a patient's surgical care-such as before surgery begins, after anesthesia is given, and before the patient wakes up. These alerts are based on each patient's individual risk for PONV and are intended to support, not replace, clinical judgment. The study will use a crossover design over 12 months, alternating between periods when the tool is active and when it is not. The goal is to determine whether this time-sensitive, workflow-integrated tool can lead to better adherence to best practices and improved patient outcomes.

Methylprednisolone vs Dexamethasone: Effects on Sugammadex Reversal, Pain, and Nausea in Adults

This randomized controlled trial aims to compare the effects of intravenous methylprednisolone and dexamethasone on the reversal time of rocuronium by sugammadex in adult patients undergoing elective septoplasty or rhinoplasty. The primary outcome is the time from sugammadex administration to recovery of a train-of-four (TOF) ratio of 0.9. Secondary outcomes include extubation time, postoperative nausea and vomiting (PONV), pain scores, complications in the post-anesthesia care unit (PACU), and intraoperative hemodynamic parameters. The study will provide new evidence on whether perioperative corticosteroid choice modifies the efficacy of sugammadex and influences postoperative recovery.

Comparison of Two Plane Blocks Used in Open Ventral Hernia Repair Operations

The aim of this study is to compare the postoperative analgesic efficacy of bilateral erector spinae plane block and bilateral external oblique-intercostal plane block in patients undergoing open ventral hernia repair.

Comparison of Remimazolam and Propofol in Endoscopic Examinations and Treatments

This study aims to evaluate the efficacy and safety of Remimazolam, either used alone or in combination with Propofol, for moderate sedation anesthesia during endoscopic therapies or examinations. Additionally, it seeks to explore whether their combination can further enhance the quality of patient anesthesia and recovery outcomes.

Intraoperative Autonomic Blockade for Laparoscopic Cholecystectomy

This study proposes infiltrating the hepatoduodenal ligament and the serosal reflection of the gallbladder cystic plate with a combination of Bupivacaine (a long-acting local anesthetic) and Dexamethasone (a corticosteroid). This technique aims to block the hepatic branches of the celiac plexus to improve visceral pain control and its associated clinical manifestations, reduce analgesic requirements, and lower readmission rates, thereby facilitating recovery.

The Impact of Nasogastric Tube Gastric Decompression on Postoperative Nausea and Vomiting in Orthognathic Surgery

This study will compare the incidence of postoperative nausea and vomiting during the first 24 hours following corrective jaw surgery (orthognathic surgery) in patients with and without nasogastric tube gastric decompression.

Perioperative Dexamethasone Reduces Postoperative Pain and Nausea After Periacetabular Osteotomy

The purpose of this study is to assess the effect of Dexamethasone on postoperative pain and nausea after periacetabular osteotomy.

Protocol for Accelerated Recovery in Patients Undergoing Thoracic Surgical Procedures (PROSM). Study Randomized Comparative Between the Adoption of the Proposed Guidelines and the Traditional Method Currently Used in the Institution

Introduction: Aiming at reducing costs and optimizing the use of these financial resources, several postoperative recovery protocols have emerged that aim to reduce the length of hospital stay by accelerating surgical recovery.1,2 In view of the current Brazilian political and economic scenario allied to the existing scientific knowledge on the subject , the investigators developed a protocol that aims to meet this need using resources already available and offered in brazilian public health system. The investigators called this protocol as Protocol of Operative Recovery Santa Marcelina (PROSM) that had as inspiration the protocols of accelerated postoperative recovery already used in several European health services. Goals: 1. To evaluate the impact of PROSM on the length of hospitalization in days and postoperative pain (visual analog pain scale - VAS) in patients submitted to surgical procedures performed by the thoracic surgery team of the Hospital Santa Marcelina de Itaquera. 2. Evaluate the impacts of PROSM in reducing the costs (US dollars) of surgical treatment and hospitalization of these patients. Materials and methods: A group of 200 patients with elective pulmonary resections (segmentectomies, lobectomies or pneumonectomies) to treat neoplastic lung diseases will be selected by the investigators. The participants will be randomized into two groups (rate of randomization 1/1). The first group will be submitted to the standard surgical treatment that is currently used in Santa Marcelina - Itaquera hospital. The second group will be submitted to treatment with the adoption of the PROSM guidelines, which will be detailed later. Investigators will evaluate in the two groups: surgical time in minutes, intraoperative complications: intraoperative bleeding in mililiters, need for transfusion of blood products, intraoperative clinical complications. Investigators will also evaluate the need for postoperative recovery in Intensive Care Unit (ICU), medications used to maintain the anesthetic plane during the procedure (amount of drugs in milligrams), medications used for postoperative analgesia, length of hospital stay in days, postoperative clinical complications, need for surgical re-boarding, immediate postoperative pain (VAS), postoperative pain at the time of discharge and the first outpatient return (VAS), the need for opioid analgesics at home after discharge. After the data collection, the investigators will analyze them and make a comparative study of the costs of surgical treatment and hospitalization between the two groups. This data will be obtained from the billing department of the Hospital Santa Marcelina de Itaquera.

Oral Dexamethasone as an Intervention for Postoperative Pain and Nausea Management in Total Knee Arthroplasty

This study aims to determine if oral dexamethasone provides clinically significant improvement in postoperative outcomes, specifically nausea and pain scores.