Publications by authors named "Sujith Wijerathne"

Title: Cessation vs No Cessation of Acetylsalicylic acid Preoperatively in Laparoscopic Totally Extraperitoneal Inguinal Hernia Repair (CAPTAIN): Final Report from a Multi-Center, Single-Blinded, Randomized-Controlled Trial. The CAPTAIN trial is a prospective multi-center randomized-controlled trial evaluating the safety of continuing acetylsalicylic acid preoperatively in patients undergoing elective laparoscopic inguinal hernia mesh repair (LIHR).

Methods: Patients undergoing LIHR were eligible for inclusion.

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Objective: Biennial mammography screening is well-established for women aged 50 and above, but guidelines for younger women are less clear. Risk-based screening may provide women with key information to make informed decisions about their breast cancer risk and screening. This study examines how predicted breast cancer (BC) risk shapes women's perception and confidence in risk prediction.

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Background: Given the increasing prevalence of antiplatelet agent use and the lack of high-quality evidence, the CAPTAIN trial aimed to investigate the safety and provide recommendations on continuing acetylsalicylic acid perioperatively in patients undergoing elective laparoscopic totally extraperitoneal inguinal hernia repair (LIHR).

Methods: The CAPTAIN trial was a multicentre, surgeon blind, randomized controlled trial conducted from April 2016 to April 2023. Patients undergoing LIHR were eligible for inclusion.

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Combined ganglioneuroma-schwannoma is an exceedingly rare tumor that has only been described in isolated case reports. We document a 64-year-old man with an incidentally discovered combined ganglioneuroma-schwannoma of the retroperitoneum that was intimately associated with sympathetic ganglia. We highlight the morphological and immunohistochemical findings of this rare tumor, and show evidence of its origin from sympathetic ganglia.

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Introduction: Laparoscopic ventral hernia mesh repair (LVHR) is gaining popularity possibly due to reduced complications, reduced hospital stay, early return to work and better cosmesis. In intra-peritoneal onlay method (IPOM) a dual layer composite mesh with an absorbable barrier on the visceral surface is used for minimising bowel adhesions. Three most popular prosthetic mesh scaffolds are polypropylene (PP), polyester and expanded polytetrafluoroethylene (ePTFE).

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Background: Individual studies on men with mildly symptomatic or asymptomatic inguinal hernia who have opted for watchful waiting (WW) vary considerably. Furthermore, long-term data on such patients who cross over to herniorrhaphy is scarce.

Methods: PubMed, EMBASE, and Cochrane databases were searched systematically from inception to 3rd April 2024 for long-term follow-up of randomized controlled trials (RCTs) on men with mildly symptomatic or asymptomatic inguinal hernia.

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Purpose: Value driven outcome (VDO) initiative is a value-based, patient-focused tool which utilizes a clinical outcome-based approach to optimize value of care based on clinically relevant quality indicators and costs required to achieve the care. In this study, we evaluate the impact of a VDO initiative on groin hernia repair, a commonly performed elective surgery in our hospital.

Methods: A VDO initiative was implemented in 2019 to encourage elective inguinal hernia repair to be performed at a day surgery setting.

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Purpose: The ideal surgical treatment of small ventral hernias (defect less than 4 cm) is still debatable. In our study, we sought to compare the outcomes of open versus laparoscopic intraperitoneal on-lay mesh (IPOM) repair in small ventral hernias.

Methods: Patients with a single ventral hernia defect of less than 4 cm undergoing surgical mesh repair between January 2016 and September 2018 were prospectively registered for this study.

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Background: The use of local anaesthesia infiltration techniques may attenuate pain following endo-laparoscopic inguinal hernia surgery. We aim to reduce post-operative pain and the subsequent need for analgesia using a novel technique of local anaesthesia infiltration 'NATURE' (Nerves And Transversalis-fascia Using RopivacainE).

Methods: This is a retrospective study of patients who underwent endo-laparoscopic inguinal hernia repair in two institutions in Singapore.

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Purpose: There has not been a consensus on the superiority of a surgical approach for minimally invasive ventral hernia repair. This systematic review and meta-analysis (SRMA) aims to compare clinical, and patient-reported outcomes of robotic-assisted ventral hernia repair (rVHR) to traditional endo-laparoscopic ventral hernia repair (lapVHR).

Methods: We searched PubMed, EMBASE, Cochrane and Scopus from inception to 16th March 2021.

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Background: Surgical techniques for inguinal hernia repair have evolved rapidly from open methods to conventional laparoscopic totally extra-peritoneal (CTEP) and recently single-port TEP (STEP). As there is currently no randomized controlled trial (RCT) reporting long-term patient-reported outcomes between CTEP and STEP, we reviewed patients who were randomized to CTEP or STEP 5 years after surgery.

Methods: Telephone interviews were administered to patients with primary unilateral inguinal hernia recruited for the RCT comparing CTEP and STEP in 2011.

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Background: Neurobiological feedback in surgical training could translate to better educational outcomes such as measures of learning curve. This work examined the variation in brain activation of medical students when performing laparoscopic tasks before and after a training workshop, using functional near-infrared spectroscopy (fNIRS).

Methods And Procedures: This single blind randomised controlled trial examined the prefrontal cortex activity (PFCA) differences in two groups of novice medical students during the acquisition of four laparoscopic tasks.

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Background/objective: Our study aims to compare clinical outcomes of laparoscopic Totally Extra-peritoneal (TEP) repair with mesh fixation in large inguinal hernias using titanium versus absorbable tacks.

Methods: This is a case control study of patients who underwent laparoscopic TEP repair with mesh fixation of large inguinal hernias in our institution from 2010 to 2015. In all patients a standard 10 × 15 cm large-pore polypropylene mesh was used and a standardized fixation technique was followed.

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Background: The advantage of single-port total extra-peritoneal (TEP) inguinal hernia repair over the conventional technique is still debatable. Our objective was to compare the outcomes of TEP inguinal hernia repair using either a single-port or conventional surgical technique, in two blind randomized groups of patients.

Methods: In this prospective, randomized, double-blind, controlled clinical trial, 100 patients undergoing surgery for unilateral inguinal hernia were randomized into two groups: One group underwent conventional laparoscopic TEP inguinal hernia repair, while the other was selected for single-port TEP repair.

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Natural orifice transluminal endoscopic surgery (NOTES) is a novel surgical procedure during which abdominal operations can be performed with an endoscope passed through a natural orifice through an internal incision in the stomach, vagina, bladder or colon. NOTES is still evolving and many barriers stand on its way before it can gain acceptance in modern surgical practice. Effective access to the peritoneal cavity, closure techniques of the natural orifice access sites, development of a multitasking platform to accomplish procedures and support for special orientation are only a handful of its known limitations.

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Introduction: The success of laparoscopic surgery is due to the less surgical trauma, including less operative pain, complications and better cosmetics. Objective of our study was to compare in two blind randomized groups of patients, the surgical outcome of total extra-peritoneal (TEP) inguinal hernia repair using either single-port or conventional surgical technique. We will report our interim results in the first group of 50 patients.

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Purpose: 'Low back pain' (LBP) is a prevalent condition with a majority showing no specific organic pathology. Distinguishing 'secondary gain motives (SGM)' from organic causes is imperative in clinical practice. We describe here, three new tests-resistive straight leg raise test (rSLRT), resistive forward bend test (rFBT) and heel compression test (HCT) to help differentiate patients with 'SGM' from those without.

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