Clinical Research Directory

Saudi Emergency Laparotomy Audit

The Saudi Emergency Laparotomy Audit (SELA) is a national, multicenter observational clinical audit designed to evaluate outcomes and quality of care for patients undergoing emergency laparotomy in Saudi Arabia. The audit will collect standardized data on patient characteristics, comorbidities, perioperative processes, and postoperative outcomes through a retrospective baseline phase followed by a prospective registry phase. SELA aims to establish national benchmarks, assess applicability of international risk models, support development of a Saudi-specific risk prediction tool, and drive quality improvement through systematic feedback and benchmarking across participating hospitals.

Influence of Analgesic Technique on Post Operative Rehabilitation After Median Laparotomy

Randomized controlled trial (1:1) in two parallel groups, multicentric, open-label, comparing two locoregional anesthesia (LRA) techniques as integral parts of multimodal analgesia: the control group will benefit from epidural anesthesia, while the experimental group will benefit from bilateral placement of catheters in the sheath of the rectus abdominis muscles.

S-TAP vs RSB in Midline Abdominal Incision Laparotomy

The aim is to compare the postoperative analgesic effects of Subcostal Transversus Abdominis Plane Block (S-TAP) versus Rectus Sheath Block (RSB) in patients undergoing laparotomy with midline abdominal incision.

M-TAPA vs RSB in Midline Abdominal Incision Laparotomy

The aim is to compare the postoperative analgesic effects of Modified ThoracoAbdominal nerve block through Perichondrial Approach (M-TAPA) versus Rectus Sheath Block (RSB) in patients undergoing laparotomy with midline abdominal incision.

PIB for Post-operative Analgesia After Laparotomy : Determining the Optimum Dose

Pain control after surgery is a crucial component of postoperative recovery. Thus, in open abdominal surgery, the use of TEA (Thoracic epidural analgesia) has become a gold standard. However, analgesia may still remain a challenge, especially in patients with large incision abdominal incisions. To address this problem, the use of the PIEB (Programmed intermittent epidural bolus) mode has been proposed, because it offers a better spread of the epidural medication. Only a few studies have evaluated the superiority of this PIEB mode in open abdominal surgery, yielding conflicting results. However, PIEB showed to be at least as effective in controlling pain as CEI, and clinical experience shows that it can be a valuable tool, especially in patients with a large laparotomy incision. However, the optimal dosage of the PIEB mode has never been determined, Furthermore, it is known whether men and women have the same dosage needs to achieve adequate analgesia since most studies have failed to account for sex-based differences in postoperative analgesia. Hence, the main objective of this study will be to determine the optimal volume dose of the PIEB delivered at a fixed interval of 60 min in patients undergoing surgery using a large midline laparotomy incision. The optimal dose for male and female patients will be determined separately by evaluating men and women in two independent groups. We hypothesize that the optimal dose of the PIEB that will provide effective analgesia in 90% of patients on the first postoperative day will range between 5 and 10 mL, for both groups. The primary outcome in both groups is successful analgesia. It is defined as a requirement of 5 or less patient-controlled epidural boluses between 8 AM and 8 PM on the first postoperative day. Secondary outcomes will be the incidence of motor block and hypotension, comparison of the level of sensory block according to group, comparison of patient satisfaction according to group and comparison of Quality of Recovery-15 score at 48h post-op according to group.

Clinical Outcomes of Non-Indicated Staged Laparotomies in Abdominal Trauma

The goal of this observational study is to understand how often staged operations are performed in abdominal trauma patients without meeting standard clinical criteria, and to explore related clinical characteristics and outcomes. The main questions it aims to answer are: How frequently are staged operations performed when not clinically indicated? What are the clinical features and outcomes of patients who undergo non-indicated staged operations? What are the risk factors for delayed reoperation among patients who initially received a single operation? Researchers will review medical records of patients who underwent exploratory laparotomy for abdominal trauma at Far Eastern Memorial Hospital between January 1, 2013, and December 31, 2024. Participants will be grouped based on whether they had a single or staged operation, and whether their initial operation met established criteria for a staged approach. Clinical characteristics and outcomes will be compared across groups.

IV vs Epidural Opioids + Epidural Local Anesthetic for Laparotomy Analgesia

The purpose of this research study is to determine if the two common ways of administering additional opioids (morphine like substance, narcotic) with an epidural, either mixed in the epidural solution or given separately through the intravenous, are equally effective in controlling post-operative pain

Intrathecal Morphine Versus Epidural Analgesia for Open Colon Surgery

Effective pain management after abdominal surgery is essential for recovery. This study compares two pain relief methods-intrathecal morphine (a single spinal injection) and continuous epidural analgesia-for patients undergoing open colorectal cancer surgery. The investigators expect intrathecal morphine to provide equal pain relief at rest 24 hours after surgery, while epidural analgesia may be more effective during movement. By 48 to 72 hours, both methods should offer similar pain control. The epidural group may require fewer additional pain medications but could experience more side effects, including a higher risk of low blood pressure and technical difficulties. Additionally, these patients may have a slightly longer hospital stay. In contrast, the intrathecal morphine group may have fewer overall side effects. Despite these differences, patient satisfaction, sleep quality, and recovery are expected to be similar in both groups. By evaluating these methods, this study aims to determine the most effective and safe approach to post-surgical pain management, improving comfort and recovery outcomes for patients.

Perioperative Respiratory Care and Outcomes for Patients Undergoing High Risk Abdominal Surgery

PENGUIN is a pragmatic multi-center trial investigating the effects of pre-operative mouthwash and perioperative oxygen on the incidences of pneumonia and surgical site infection (SSI) following major abdominal surgery. Patients will be recruited from low and middle income countries and randomly assigned to a trial treatment arms: a) pre-operative chlorhexidine mouthwash and 80-100% FiO2; b) no pre-operative mouthwash and 80-100% fraction of inspired oxygen (FiO2); c) pre-operative chlorhexidine mouthwash and 21- 30% FiO2; or d) no pre-operative mouthwash and 21-30% FiO2.

Barbed Suture vs Non-Barbed Closure for Emergency Exploratory Laparotomy RCT

This randomized control trial aims to compare the efficacy of triclosan-coated barbed suture (TCB) versus conventional non-barbed polydioxanone (PDS) suture in the closure of the abdominal fascia after emergency exploratory laparotomy. The study addresses the common complications of incisional surgical site infections (SSI) and fascial dehiscence (FD) following emergency exploratory laparotomy. The primary objective is to assess the effectiveness of triclosan-coated barbed suture and conventional non-barbed suture in reducing the rates of incisional SSI and FD within 30 days postoperatively. The study population comprises adult patients undergoing emergent laparotomy for traumatic injuries or acute intraabdominal pathology. This prospective, single-blinded randomized control trial will be conducted at Los Angeles General Medical Center. Patients will be randomized to receive either triclosan-coated barbed suture or conventional non-barbed suture for abdominal fascial closure, with a standard closure technique employed. Patients will be followed up for 30 days postoperatively to monitor surgical site infections, fascial dehiscence, and other outcomes. Statistical analysis will be conducted to compare outcomes between the study arms, assessing the efficacy of triclosan-coated barbed suture in reducing the incidence of SSI and FD, along with secondary outcomes.