Medicine
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This repository contains the published and unpublished research of the Faculty of Medicine by the staff members of the faculty
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Item Acute appendicitis in pregnancy(Sri Lanka College of Obstetricians & Gynaecologists, 2023) Abeysuriya, V.; Dodampahala, H.S.; Chandrasena, L.INTRODUCTION: The early diagnosis and management of appendicitis in pregnancy are essential in maternal and fetal morbidity and mortality. In this 20-year retrospective study, we aimed to assess the outcomes of pregnant patients diagnosed with acute appendicitis. METHODS: A single-center retrospective study was carried out. Randomly selected 2000 medical records of pregnant mothers referred as outpatients and hospitalized from 2002 to 2022 were retrieved. Six pregnant patients who were diagnosed and treated in Nawaloka Hospital with the diagnosis of acute appendicitis during 2002-2022 were examined retrospectively. Ethics Committee approval was received. No conflicting interest. RESULTS: The age range of our patients was 22 to 31 years, mean of 26± 3.4. The mean gestational week was 20±5.3 weeks, and most were in the second trimester 4 (68%). All patients were admitted with the complaint of abdominal pain, the majority of them had the right iliac fossa pain (RIF). All had elevated inflammatory markers. No computed tomography (CT) was performed. One patient was diagnosed clinically of having acute appendicitis without any imaging. Acute appendicitis was diagnosed in 3/5 patients who underwent ultrasound scan examination. The other two patients (one from 2nd trimester and one in the third trimester) were diagnosed with acute appendicitis on MRI examination. All patients underwent open appendectomy under general anaesthesia. No maternal or foetal morbidity or mortality was noted during pre or post-surgical and anaesthesia procedures. The mean hospital stay was 3.9±0.9 days. All appendixes were pathologically proven to have acute appendicitis. Except for minor superficial surgical site infection rest of the mothers and foetus had no morbidity or mortality recorded in the follow-up. CONCLUSION: Although appendicitis is not frequent during pregnancy, it is a disease that requires urgent surgical and obstetrics care for timely diagnosis and treatment.Item Single incision laparoscopic surgery (SILS) as surgical option in Crohn’s disease: our experience(Wiely-Blackwell, 2016) Leo, A.; Samaranayake, S.F.; Hodgkinson, J.D.; Santorelli, C.; Chandrasinghe, P.C.; Warusavitarne, J.H.AIM: Single Incision Laparoscopic Surgery (SILS) is a newer mini-invasive. Benefits of SILS in complex Crohn’s disease (CCD), which includes a significant cohort of young patients sometimes needing multiple operations has not been comprehensively assessed. This study analyses our early experience. METHOD: Data were collected prospectively from January 2013 to December 2015. Ileocolic resections, right hemicolectomy, small bowel stricturoplasties and resections SILS were included in the CCD cohort. Primary and re-do surgeries were analysed separately. RESULTS: A total of 45 patients were included: 39 ileocolic resections, 6 small bowel stricturoplasty/resections. Median hospital stay was 8 days (Range - 3 days – 28 days). Three patients from primary (11%) and 2 from re-do group (11%) had to be converted to open surgery. Total complication rate was 35.5% including 31.1% ClavienDindo 1 and 2. In term of operating time, average blood loss, conversion rates, complication rate and hospital stay, there was no significant difference between the groups. Six months follow-up showed no major complications. CONCLUSION: We have demonstrated the feasibility of SILS in patients with CCD. There were no significant differences between primary and re-do surgeries. More robust data and longer follow-up is needed in future studies to evaluate this further.Item Single incision laparoscopic surgery (SILS) for primary surgery in medically refectory ulcerative colitis: a case series(Wiely-Blackwell, 2016) Chandrasinghe, P.C.; Leo, C.A.; Samaranayake, S.F.; Santorelliei, C.; Strouhal, R.; Warusavitarne, J.INTRODUCTION: Medically refractive ulcerative colitis (UC) requires surgical intervention. Due to the ongoing inflammation in the colon this patient group is considered as high risk. Primary surgery includes subtotal colectomy (STC) as the first step of a staged restorative procedure, restorative proctocolectomy (RPC) or panproctocolectomy (PPC) with end ileostomy. Single incision surgery is gaining popularity in this group of patients. METHOD: Patients who underwent single incision surgery for medically refractory UC from 2013 January to 2015 December were prospectively followed up. Demographics, hospital stay and early complications were analyzed. Mann-Whitney U test was used to compare the medians. RESULTS: A total of 34 patients (male – 24, median age – 41.5 years; range 17–69 years) were included. There were 21 STCs, 9 PPCs and 4 RPCs done as primary surgery for medically refractory UC. The median hospital stay was 7 days (4–41 days). Four out of 34 patients had a complication with Clavien-Dindo score above 3; (2-re-operation for obstruction (5%), 2 required intensive care for sepsis (5%). Two procedures (5.8%) had to be converted strategically to open. Three patients had cancer in the resected specimen. The median age of those who had PPC was significantly higher compared to those who had restorative procedures (48 years: range 17–69 Vs 38 years: range 34–64; P < 0.005). CONCLUSION: Single incision surgery for medically refractory UC is safe with an acceptable complication profile in this group of medically unwell patients. The quality of life implications of this procedure require further evaluation.Item Single Incision Laparoscopic Surgery (SILS) as surgical option in Crohn's disease: our experience(Wiely-Blackwell, 2016) Leo, C.A.; Samaranayake, S.F.; Hodgkinson, J.D.; Santorelli, C.; Chandrasinghe, P.C.; Warusavitarne, J.AIM :Single Incision Laparoscopic Surgery (SILS) is a newer technique which is increasing in popularity. The benefit of SILS in complex Crohn's disease (CCD), which includes a significant cohort of young patients sometimes needing multiple operations has not been comprehensively assessed. This study analyses our early experience with this technique. METHOD: Patients who underwent SILS for CCD were included. Data were collected prospectively from Januray 2013 to December 2015. Ileocolic resections, right hemicolectomy, small bowel stricturoplasties and resections were included in the CCD cohort. Primary and re-do surgeries were analysed separately. RESULTS: A total of 45 patients were included: 39 ileocolic resections, 6 small bowel stricturoplasty/resections. Of the total, 27 were primary resections and 18 were re-do resections. In overall, the median age was 41 years (Range – 14 years–72 years), the median hospital stay was 8 days (Range - 3 days–28 days). Three patients from primary (11%) and 2 from re-do group (11%) had to be converted to open surgery. Total complication rate was 35.5% including 31.1% Clavien Dindo 1 and 2. In term of operating time, average blood loss, conversion rates, complication rate and hospital stay, there was no significant difference between the groups. Six months follow-up showed no major complications. CONCLUSION:We have demonstrated the feasibility of SILS in patients with CCD undergoing both primary and re-do surgeries. There were no significant differences between the two groups. More robust data and longer follow-up is needed in future studies to evaluate this further.Item Single incision laparoscopic surgery (SILS) for primary surgery in medically refectory ulcerative colitis: a case series(Wiely-Blackwell, 2016) Chandrasinghe, P.C.; Leo, C.A.; Samaranayake, S.F.; Santorelli, C.; Strouhal, R.; Warusavitarne, J.AIM:Medically refractive ulcerative colitis (UC) requires surgical intervention. Primary surgery includes subtotal colectomy (STC), restorative proctocolectomy (RPC) or panproctocolectomy (PPC) with end ileostomy. Single incision surgery is gaining popularity in this group of patients. METHOD: Patients who underwent single incision surgery for medically refractory UC from 2013 January to 2015 December were prospectively followed up. Demographics, hospital stay and early complications were analysed. RESULTS: A total of 34 patients were included. There were 21 STCs, 9 PPCs and 4 RPCs done as primary surgery for medically refractory UC. The median hospital stay was 7 days (range: 4–41 days). Four out of 34 patients had a complication with Clavien-Dindo score above 3; (2-re-operation for obstruction (5%), 2 required intensive care for sepsis (5%). Two procedures (5.8%) had to be converted strategically to open. Three patients had cancer in the resected specimen. The median age of those who had PPC was significantly higher compared to those who had restorative procedures (48 years: range 17–69 vs 38 years: range 34–64; P < 0.005). CONCLUSION: Single incision surgery for medically refractory UC is safe with an acceptable complication profile. The quality of life implications of this procedure require further evaluation.Item Hardware interface for haptic feedback in laparoscopic surgery simulators(Institute of Electronics and Electrical Engineers(IEEE), 2014) Kannangara, S.M.; Ranasinghe, S.C.; Kumarage, S.K.; Nanayakkara, N.D.Minimally Invasive Surgeries (MIS) such as laparoscopic procedures are increasingly preferred over conventional surgeries due to many different advantages. Laparoscopic surgical procedures are very complex compared to open surgeries and require high level of experience and expertise. Hybrid surgery simulators available for training using physical phantoms are expensive and not readily available in majority of health care facilities around the world. Therefore, computer simulation or Virtual Reality (VR) is a better way to obtain skills for MIS. A VR simulator incorporated with haptic feedback provides a comprehensive training closer to real world experience. In this paper, we present a novel approach to incorporate force feedback to VR laparoscopic surgery training. The proposed interface incorporates force feedback in all three axes to provide three levels of force feedback. Computational models of abdomen organs were generated using the cryosection data of Visible Human Project of the National Library of Medicine, USA. The organ models were developed with three basic force categories: soft, mild and hard. A hardware interface is developed to provide the force feedback for the interaction of virtual tools with the said organ models while generating the tool navigation information for the VR simulator. © 2014 IEEE.Item Cost evaluation, quality of life and pelvic organ function of three approaches to hysterectomy for benign uterine conditions: study protocol for a randomized controlled trial(BioMed Central, 2017) Ekanayake, C.; Pathmeswaran, A.; Kularatna, S.; Herath, R.; Wijesinghe, P.BACKGROUND: Hysterectomy is the commonest major gynaecological surgery. Although there are many approaches to hysterectomy, which depend on clinical criteria, certain patients may be eligible to be operated in any of the several available approaches. However, most comparative studies on hysterectomy are between two approaches. There is also a relative absence of data on long-term outcomes on quality of life and pelvic organ function. There is no single study which has considered quality of life, pelvic organ function and cost-effectiveness for the three main types of hysterectomy. Therefore, the objective of this study is to provide evidence on the optimal route of hysterectomy in terms of cost-effectiveness by way of a three-armed randomized control study between non-descent vaginal hysterectomy, total laparoscopic hysterectomy and total abdominal hysterectomy. METHODS: A multicentre three-armed randomized control trial is being conducted at the professorial gynaecology unit of the North Colombo Teaching Hospital, Ragama, Sri Lanka and gynaecology unit of the District General Hospital, Mannar, Sri Lanka. The study population is women needing hysterectomy for non-malignant uterine causes. Patients with a uterus > 14 weeks, previous pelvic surgery, those requiring incontinence surgery or pelvic floor surgery, any medical illness which caution/contraindicate laparoscopic surgery and who cannot read and write will be excluded. The main exposure variable is non-descent vaginal hysterectomy and total laparoscopic hysterectomy. The control group will be patients undergoing total abdominal hysterectomy. The primary outcome is time to recover following surgery, which is the earliest time to resume all of the usual activities done prior to surgery. In total, 147 patients (49 per arm) are needed to have 80% power at α-0.01 considering a loss to follow-up of 20% to detect a 7-day difference between the three routes; TLH versus TAH versus NDVH. The economic evaluation will take a societal perspective and will include direct costs in relation to allocation of healthcare resources and indirect costs which are borne by the patient. A micro-costing approach will be adopted to calculate direct costs from the time of presentation to the gynaecology clinic up to 6 months after surgery. Incremental cost-effectiveness ratios (ICER) will be obtained by calculating the incremental costs divided by the incremental effects (time to recover and QALYs gained) for the intervention groups (NDVH and TLH) over the standard care (TAH) group. DISCUSSION: The cost of the procedure, quality of life and pelvic organ function following the three main routes of hysterectomy are important to clinicians and healthcare providers, both in developed and developing countries.Item Laparoscopically detected and nonsurgically managed ileal perforation by an ingested fish bone: a case report.(BioMed Central, 2015) Chandrasinghe, P.C.; Pathirana, C.K.INTRODUCTION: Ileal perforation due to fish bone is a rare event. The condition is difficult to diagnose due to lack of specific clinical features and low sensitivity of imaging techniques. We report a case of ileal perforation by a fish bone that was detected laparoscopically and managed nonsurgically. CASE PRESENTATION: A 45-year-old Sinhalese man presented with acute onset right iliac fossa pain and fever for three days. On examination, he had significant right iliac fossa tenderness and guarding. His white cell count and C-reactive protein level were elevated and an ultrasound scan was indicative of a bowel mass formation. A clinical diagnosis of acute appendicitis was made and laparoscopic appendicectomy was scheduled. At initial survey, a thin spike-like structure was retrieved from the bowel mass, which was revealed to be a fish bone. Our patient was managed with antibiotics only and did not develop any complications. CONCLUSIONS: Ileal perforation due to fish bone is a rare condition that can mimic common conditions like appendicitis. Preoperative diagnosis is rarely made. The slow process of fish bone migration results in concomitant sealing of the perforation, reducing contamination. Use of laparoscopy may be useful in diagnosing this condition and preventing the morbidity of laparotomy in these patients.Item Laparoscopic management of genital prolapse(Springer International, 2011) Mahran, M.A.; Herath, R.P.; Sayed, A.T.; Oligbo, N.INTRODUCTION: Genital prolapse is one of the most common indications for gynaecological surgery. Surgery is performed traditionally via abdominal, vaginal and laparoscopic approaches. METHODS: A MEDLINE computer search was performed to explore the recent evidence behind laparoscopic surgery for female pelvic organ prolapse. RESULTS: Advances in minimal access surgery have led to an increase in adoption of laparoscopic techniques. Current evidence supports the use of laparoscopy for sacrocolpopexy and colposuspension as an alternative to open surgery. However, the introduction of less invasive midurethral sling procedures for stress incontinence has reserved laparoscopic colposuspension for special indications. The scientific evidence regarding uterosacral suspension procedures and paravaginal and vaginal prolapse repairs are sparse. CONCLUSION: The current evidence supports the outcome of laparoscopic sacrocolpopexy as an alternative to open surgery. Further studies are required on the long-term efficiency in laparoscopic paravaginal repair and vaginal wall prolapse.Item Laparoscopic prosthesis fixation rectopexy for complete rectal prolapse(1994) Deen, K.I.No Abstract Available