Original research papers published in peer reviewed journals

1. Gnanarathne, Sampath; Ratnayake, Ashani; Kariyawasam, Ayodhya. Uterocutaneous fistula: A rare complication of cesarean section. Philippine Journal of Obstetrics and Gynecology 49(1):p 74-76, Jan–Mar 2025. | DOI: 10.4103/pjog.pjog_60_24


2. Ratnayake, A., Gnanarathne , S. and Uhanovita , A. (2025) ‘Haemostatic Effects and Systemic Implications of Intra-Myometrial Vasopressin in Laparoscopic Gynaecological Surgery’, Sri Lankan Journal of Anaesthesiology, 33(02), p. 148-156. Available at: https://doi.org/10.4038/slja.v33i02.9563.


3. Gnanarathne S, Ratnayake A, Thennewatte D, et al. (August 04, 2025) Congenital Myasthenic Syndrome in Pregnancy: A Case Report and Literature Review on Peripartum Management Strategy. Cureus 17(8): e89337. doi:10.7759/cureus.89337


4. Ratnayake, Ashani; Gnanarathne, Sampath1. Comment on; “Effect on Neonatal Acid–Base Status of Phenylephrine and Norepinephrine Boluses for Management of Spinal Anesthesia-Induced Hypotension in Patients with Preeclampsia Undergoing Cesarean Delivery: A Randomized, Double-Blinded Trial”. Journal of Obstetric Anaesthesia and Critical Care 15(2):p 177-178, Jul–Dec 2025. | DOI: 10.4103/JOACC.JOACC_64_25


5. Ratnayake A, Dassanayake B, Kumarihamy P, Rajapaksha A, Morel N. Massive isolated pneumomediastinum in a ventilated patient with COVID-19 pneumonia managed with the insertion of a novel mediastinal drain. SAGE Open Medical Case Reports. 2025;13. doi:10.1177/2050313X251329773


6. Ekanayake, N., Herath , A., Ratnayake, A., Gnanarathne, S., Samarasinghe, B. and Rathnayake , C. (2024) ‘Prevalence of pre-operative frailty and association with post-operative outcomes in patients presenting for elective major surgery: a single centre study ’, Journal of the Postgraduate Institute of Medicine, 11(2), p. E254 1-10. Available at: https://doi.org/10.4038/jpgim.8529.


7. Gnanarathne, S., Ratnayake, A., Kumarasiri, G. and Herath, A. (2025) ‘A Complex Clinical Scenario: Perioperative Management of Osteogenesis Imperfecta in Gynaecological Surgery’, Sri Lankan Journal of Anaesthesiology, 33(01), p. 113-117. Available at: https://doi.org/10.4038/slja.v33i01.9487.
8.  Ratnayake, A. and Pinto, V. (2025) ‘Publishing with Integrity: A Novice Researcher's Guide to Ethical and Credible Academic Publishing’, Sri Lankan Journal of Anaesthesiology, 33(01), p. 1-3. Available at: https://doi.org/10.4038/slja.v33i01.9535.


9. Ratnayake A, Gnanarathne S, Thangavadivale V, Egodage S, Sandaru G. Allodynia at episiotomy scar as an unusual cause for dyspareunia: a case report. Anaesth. pain intensive care 2024;28(6):1135-1137.


10. Ratnayake, A., Abeysundara, A., Samarasinghe, B. et al. Use of intermediate cervical plexus block in carotid endarterectomy –an alternative to deep cervical plexus block: a case series. BMC Anesthesiol 24, 288 (2024). https://doi.org/10.1186/s12871-024-02674-8


11. Pinto, V. and Ratnayake, A. (2024) ‘The well-being of Anaesthetists and Intensivists in Sri Lanka – It’s time for more attention.’, Sri Lankan Journal of Anaesthesiology, 32(2), p. 95-99. Available at: https://doi.org/10.4038/slja.v32i2.9416.


12. Ratnayake, A., Rajapakse, A., Kumarihamy, P., Wijesena, N., Dissanayake, H., Sandaru, G.L.G., Bandara, H.M.C.D. and Morel, N.S. (2024) ‘Outcomes Of Cardiac Arrests in ICU Patents with COVID-19: A Single Centre Study From Sri Lanka’, Sri Lanka Journal of Medicine, 33(2), p. 33-39. Available at: https://doi.org/10.4038/sljm.v33i2.512.


13. Gnanarathne, S. and Ratnayake, A. (2024) ‘Large Ovarian Cyst - Laparoscopic Entry: A Case Report’, Sri Lanka Journal of Medicine, 33(1), p. 72-76. Available at: https://doi.org/10.4038/sljm.v33i1.479.


14. Ratnayake A. and Pinto, V., 2024. Enhancing advanced airway skills in trainees amid crisis: A call for comprehensive training programs. Sri Lankan Journal of Anaesthesiology, 32(1), p.1-3.DOI: https://doi.org/10.4038/slja.v32i1.9320


15. Ratnayake A. and Pinto, V., 2023. Prone ventilation in Critical care: Decade since PROSEVA. Sri Lankan Journal of Anaesthesiology, 31(1), p.1-3.DOI: https://doi.org/10.4038/slja.v31i1.9184


16. Madugalle, S., Rajapakshe, K., Imtiaz, R., Waidyalankara, N., Ratnayake A. and Abeysundara, A., 2023. An Audit on Unnecessary Preoperative Investigations and Their Cost in Dental Hospital Peradeniya Sri Lanka. Sri Lankan Journal of Anaesthesiology, 31(2), p.161-166.DOI: https://doi.org/10.4038/slja.v31i2.9240


17. Pinto, V. and Ratnayake A., 2023. Anaphylaxis: Unveiling the silent killer. Sri Lankan Journal of Anaesthesiology, 31(2), p.104–107.DOI: https://doi.org/10.4038/slja.v31i2.9288


18. Ratnayake A., Rajapakse, A., Kumarihamy, P., Jayasinghe, A. and Dissanayake, G., 2023. Intubation of Critically Ill COVID-19 Patients Using Conventional Laryngoscope in the ICU. Sri Lankan Journal of Anaesthesiology, 31(1), p.41-48.DOI: https://doi.org/10.4038/slja.v31i1.9089


19. Ratnayake A, Nanayakkara S, Herath M. A case of displaced mandibular reconstruction plate and the airway. Anaesth. pain intensive care 2022;27(1):139−141; DOI: 10.35975/apic.v27i1.2126


20. Ratnayake, A., Rajapakse, A., & Kumarihamy, P. (2023). Clinical Significance and Outcome of COVID-19 Patients with Thrombocytopenia in Intensive Care Unit: A Single Centre Study. Asian Hematology Research Journal, 7(1), 8-15. Retrieved from https://journalahrj.com/index.php/AHRJ/article/view/30213


21. Jayasinghe, A. and Rathnayake, A., 2022. Ketamine: Is It Pro-Epileptic or Anti-Epileptic? The Debate Continues. A Narrative Review with a Case Discussion. Sri Lankan Journal of Anaesthesiology, 30(2), pp.102–105. DOI: http://doi.org/10.4038/slja.v30i2.8946


22. Ratnayake A, Kumarihamy P, Gunaratne S, Abeysinghe H, Perera S, et al. Silent hypoxaemia in COVID-19: Journey through ICU. J Clin Images Med Case Rep. 2021; 2(5): 1317.


23. Ratnayake A, Kumarihamy P, Gunaratne S, Abeysinghe H, Wickramasinghe N. Severe COVID pneumonia complicated with transient diabetic ketoacidosis in a diabetes-naive patient: A case report and literature review. J Clin Images Med Case Rep. 2021; 2(5): 1315.


24. Kumarihamy P, Gunaratne S, Ratnayake A, Abeysinghe H, Perera S, et al. (2021) A Case of COVID-19 Infection Associated with Severe Cold Agglutinin Autoimmune Haemolytic Anaemia. Clin Med Rev Case Rep 8:358. doi.org/10.23937/2378-3656/1410358


25. Kumarihamy P, Ratnayake A, Gunaratne S, Abeysinghe H. Perera S. Dengue and SARS-CoV-2 co-infection: A case series from Sri Lanka and literature review. J Clin Images Med Case Rep. 2021; 2(5): 1343.


26. Kumarihamy P, Ratnayake A, Abeysinghe H, Perera S, Ekanayake S. Life-threatening secondary infection in a patient with Covid-19 pneumonia treated with tocilizumab: A picture series. J Clin Images Med Case Rep. 2021; 2(5): 1324.


27. Ashani Ratnayake, Prabhashini Kumarihamy, Sujeewa Gunaratne, Hiranya Abeysinghe, Sahan Perera, Shirley Ekanayake, "Different Outcomes of “Silent Hypoxia” in Patients with COVID-19 Pneumonia: A Case Series and Literature Review", Case Reports in Critical Care, vol. 2021, Article ID 1215274, 6 pages, 2021. https://doi.org/10.1155/2021/1215274


28. Niraj G, Tariq Z, Ratnayake A, Jackson BL, Ahson M, Kamel Y, Kaushik V. Effectiveness of ESPITO analgesia in enhancing recovery in patients undergoing open radical cystectomy when compared to a contemporaneous cohort receiving standard analgesia: an observational study. Scand J Pain. 2020 Nov 3:/j/sjpain.ahead-of-print/sjpain-2020-0118/sjpain-2020-0118.xml. doi: 10.1515/sjpain-2020-0118. Epub ahead of print. PMID: 33141111.doi: https://doi.org/10.1515/sjpain-2020-0118


29. Ratnayake, Ashani, Goh, Lihxuan, Woolsey, Lee, Thawale, Roshan, Jackson, Benjamin L. and Niraj, G.. "Erector spinae plane and intra thecal opioid (ESPITO) analgesia in radical nephrectomy utilising a rooftop incision: novel alternative to thoracic epidural analgesia and systemic morphine: a case series" Scandinavian Journal of Pain, vol. 20, no. 4, 2020, pp. 847-851. https://doi.org/10.1515/sjpain-2020-0034


30. D Kumarasinghe , A Ratnayake , P Desilva, V Pinto Superior sagittal sinus thrombosis in a patient presenting with pregnancy induced hypertension and eclampsia. Sri Lankan Journal of Anaesthesiology: 25(1):50-52(2017) DOI: 10.4038/slja.v25i1.8193


31. Dharmaratne S, Agampodi S, Dassanayaka S, Kumarihami P, Ratnayake A, Wickramathilake S. Disease Burden Assessment Beyond In-patient Data: A Morbidity Profile Assessment of Outpatients. Int J Prev Med. 2012;3(10):730-732.


32. Agampodi, S.B., Dharmaratne, S.D., Thevanesam, V. et al. Incidence and effects of Varicella Zoster Virus infection on academic activities of medicl undergraduates - a five-year follow-up study from Sri Lanka. BMC Infect Dis 10, 117 (2010). https://doi.org/10.1186/1471-2334-10-117

1. DELAYED-ONSET STRIDOR FOLLOWING TRACHEOSTOMY DE-CANNULATION DUE TO CLOSURE OF TRACHEOSTOMA; A CASE REPORT. Warnakula, S., Handapangoda, Y., Ratnayake, A., Abeysundara, A., Samarasinghe, S., Wazeer, S. . At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo. At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


2. POST DURAL PUNCTURE HEADACHE AND ITS POTENTIAL TO OBSCURE SINISTER PATHOLOGIES: A CASE REPORT Hewawasam, HGRBL, Sumithraarachchi, MPC, Ratnayake, A, Samarasinghe, S, Abeysundara, A, Nanayakkara, S, Weerasinghe, S, Gihan, C At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


3. HEMORRHAGIC VARICELLA ZOSTER COMPLICATED BY ANGIOEDEMA AND DIFFICULT AIRWAY: A CASE REPORT Warnakula, S.,Ratnayake, A., Nanayakkara, S., Senarathna, L At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


4. RHABDOMYOLYSIS IN THE ABSENCE OF MAJOR TRAUMA: THE ROLE OF HEAT MASSAGE THERAPY AND THE IMPORTANCE OF RECOGNIZING SUBTLE CLINICAL FINDINGS Warnakula, S., Handapangoda, Y., Ratnayake, A., Rathnayake, U Athapaththu, AMLMM, Abeysundara, A., Samarasinghe, S. At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


5. LEVEL OF PREHABILITATION OF ANAEMIA BEFORE MAJOR SURGERIES AT A TERTIARY CARE HOSPITAL IN SRI LANKA: A PROSPECTIVE OBSERVATIONAL STUDY. Herath HMAN, Ratnayake RMASK. Ekanayake EMN. At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


6. COMBINED SUPERFICIAL CERVICAL PLEXUS BLOCK AND INTERMEDIATE CERVICAL PLEXUS BLOCK FOR SUPRACLAVICULAR LYMPH NODE EXCISION IN A HIGH-RISK PATIENT: A CASE REPORT Munasinghe N, Ratnayake A At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


7. USE OF MALE-ONLY PLASMA AS A STRATERGY OF PREVENTING TRALI IN THERAPUTIC PLASMA EXCHANGE; A CASE REPORT. Premasirt NKUS,, Ratnayake A, Abeysundara A, Pathirage M. At proceedings of annual academic Sessions of College of Anaesthesiologists and Intensivists of Sri Lanka 21-23 February 2025 at Colombo


8. HEMODYNAMIC RESPONSE TO INTRA-MYOMETRIAL VASOPRESSIN DURING GYNECOLOGICAL LAPAROSCOPIC SURGERY: A PROSPECTIVE OBSERVATIONAL STUDY Ratnayake R M A S K, Gnanarathne S T, Jayagoda J G R S, Rathnayake R M C J At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


9. PREVALENCE OF ANAEMIA AND OUTCOME OF RESTRICTIVE TRANSFUSION PRACTICE IN A COHORT UNDERGOING TOTAL LAPAROSCOPIC HYSTERECTOMY FOR BENIGN INDICATIONS Ratnayake R M A S K, Gnanarathne S T, Rathnayake R M C J At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


10. AIRWAY ASSESSMENT KNOWLEDGE AMONG ANAESTHETISTS IN CENTRAL PROVINCE, SRI LANKA Kumarasiri G P, Ratnayake R M A S K, Rathnayake R M C J At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


11. INTRODUCTION OF A NOVEL TEMPERATURE MONITORING CHART FOR ICU PATIENTS: A ONE PAGE FRAMEWORK FOR VISUALIZING SEPSIS PROGRESSION Warnakula S , Ratnayake A , Abeysundara A, Handapangoda Y , Samarasinghe S , Rathnayake C At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


12. HAEMOPHAGOCYTIC LYMPHOHISTIOCYTOSIS IN EXPANDED DENGUE SYNDROME: A CASE REPORT Hewawasam, HGRBL , Ratnayake A, Abeysundara, A , Samarasinghe S , Nanayakkara, S , Ralapanawa, U , Abeygunawardhane, S , Rajapakshe V At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


13. TACROLIMUS TOXICITY LEADING TO ACUTE KIDNEY INJURY AFTER KIDNEY TRANSPLANT- A CASE REPORT Premasiri, NKUS , Ratnayake, A , Abeysundara, A Abeysekara R At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


14. SUB ANAESTHETIC DOSE KETAMINE INFUSION FOR REFRACTORY CHRONIC POST SURGICAL PAIN: A CASE REPORT Thangavadivelu V, Ratnayake R M A S K, Jayagoda J G R S ,De Soysa S S, Rathnayake R M C J At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


15. LUMBAR APPROACH TO INFERIOR VENA CAVA CANNULATION AS AN ACCESS FOR HEMODIALYSIS – A LIFESAVING OPTION IN A PEDIATRIC PATIENT WITH EXHAUSTED VASCULAR ACCESS: A CASE SERIES Samarasinghe B, Ratnayake A, Thalgahagoda S, Munasinghe N, Shelton J, Morel N At the proceedings of Annual Academic sessions of Kandy Society of Medicine 5-7 February 2025 at Kandy


16. Prevalence of Anaemia and Outcome of Restrictive Transfusion Practice in a Cohort Undergoing Total Laparoscopic Hysterectomy for Benign Indications : Ashani Ratnayake, Sampath Gnanarathne. At the proceedings of World congress of Anaesthesiologists – 3-7 March 2024 Singapore


17. Pre operative characteristics and post operative outcome of patients undergoing cleft lip and palate repair; a prospective 1 year study Ashani Ratnayake, Parakrama Wijekoon, Senani Samarasinghe, Nimal Nandasiri,Anura Abayasundara, Saman Nanayakkara. At the proceedings of  World congress of Anaesthesiologists – 3-7 March 2024 : Singapore


18. Airway management in paediatric patients presenting for cleft lip and palate repair: one-year prospective study.  Ashani Ratnayake, Parakrama Wijekoon, Senani Samarasinghe, Nimal Nandasiri, Anura Abeysundara, Saman Nanayakkara. At the proceedings of Annual academic sessions of the College of Anesthesiologists and Intensivists of Sri Lanka. 23rd January 2024


19. Vicarious contrast excretion to the gastrointestinal tract in a critically ill hypotensive patient: a diagnostic dilemma in intensive care Lalantha Kavisekara , Samadhi Madugalle, Madusha Prabodini, Ashani Ratnayake ,Senani Samarasinghe, Bandula Samarasinghe ,Kumari Pussepitiya At the proceedings of Annual academic sessions of the College of Anesthesiologists and Intensivists of Sri Lanka. 23rd January 2024


20. Isobaric bupivacaine versus hyperbaric bupivacaine for obstetric spinal anaesthesia: prospective randomized clinical trial Anura Abayasundara, Ashani Ratnayake, Senani Samarasinghe, Dimuthu Ranathunga, Lalantha Kavisekara, Sampath Thennakoon, Ruwanthi Bandara, Sithumini de Silva. At the proceedings of Annual academic sessions of the College of Anesthesiologists and Intensivists of Sri Lanka. 23rd January 2024


21. Retrospective study of perioperative management of diaphragmatic hernia Rajapakshe RKA, Weddagala WMSR, Ranaweera RLAR, Rathnayake A, Hearachchi K. At the proceedings of Annual Academic Sessions 2024 , Kandy Society of Medicine , Sri Lanka – on 7-9th February 2024.


22. Improving preoperative assessments at teaching hospital Peradeniya: a research insight Rathnayaka ARMTC, Ratnayake RMASK, Abeysundara AB At the proceedings of Annual Academic Sessions 2024 , Kandy Society of Medicine , Sri Lanka – on 7-9th February 2024.


23. A case report: a successful lateral position endotracheal intubation in a situation of difficult approach in supine position Herath HMMY, Ratnayake RMASK, Dassanayake BK, Maduranga LSKKP, Abeywardhana UNY At the proceedings of Annual Academic Sessions 2024 , Kandy Society of Medicine , Sri Lanka – on 7-9th February 2024.


24. Audit on the delivery of peri-operative care for the patients with fracture neck of femur in the post-covid era . De Silva KHYT, Ratnayake A, Abeysundara A, Pallawala R. At the proceedings of Annual Academic Sessions 2023 , Kandy Society of Medicine , Sri Lanka – on 9-10th February 2023.


25. Severe vesoplegia with multi organ dysfunction in a patient with combined calcium channel blocker and angiotensin receptor blocker poisoning . Rajapakshe RKA, Ratnayake RMASK , Abeysundara AB. At the proceedings of Annual Academic Sessions 2023 , Kandy Society of Medicine , Sri Lanka – on 9-10th February 2023.


26. Carotid endarterectomy under combined superficial and intermediate cervical plexus block: report of two cases . Ranasinghe RHSN, Madugalle PMSK, Ratnayake ARMTC, Ratnayake A, Ratnayake RMJBS, Rajapaksha RKA, Weddagala WMSR. . At the proceedings of Annual Academic Sessions 2023 , Kandy Society of Medicine , Sri Lanka – on 9-10th February 2023.


27. Successful outcome of a patient with leaking abdominal aortic aneurysm repair complicated with intra operative myocardial infarction and major haemorrhage. Rathnayaka  ARMTC, Ratnayake RMASK, Abeysundara AB , Ratnayake RMJBS, Rajapakshe RKA. At the proceedings of Annual Academic Sessions 2023 , Kandy Society of Medicine , Sri Lanka – on 9-10th February 2023


28. Interscalene block as an alternative to general anaesthesia in high-risk patients: a report of two cases.  Imthiyas FR, de silva L,   Ratnayake RMASK,  Abeysundara AB. At the proceedings of Annual Academic Sessions 2023 , Kandy Society of Medicine , Sri Lanka – on 9-10th February 2023


29. Delayed onset of malignant hyperpyrexia in a patient with prior uneventful volatile anaesthesia exposure (case report) Harshani H.G.H.D , Ratnayake R. M. A.S. K.  , Jayasinghe A  , Abeysundara A  ,Wijekoon P  , Kumbukgolla K.G.V , De Silva K.H.Y.T . At the proceedings of Annual academic sessions of the College of Anesthesiologists and Intensivists of Sri Lanka. 23rd January 2023


30. Cardiac arrest and cardiopulmonary resuscitation in ICU patients with COVID 19 . Gayan Dissanayake, Ashani Ratnayke, Ayeshani Rajapakse, Nadeeka Wijesena, Harsha Dissanayake . At the proceedings of Resuscitation 2022 at Antwerp, Belgium.


31. Emergency intubation of critically ill COVID-19 patients using conventional laryngoscope: a descriptive observational study : Ashani Ratnayake, Ayeshani Rajapakse, Amila Jayasinghe, Prabhashini Kumarihamy : Presented at the proceedings of Annual Academic Sessions of Sri Lanka College of Anaesthesiologists on 22.01.2022


32. Outcome of critically ill COVID-19 patients with diabetes : experience from a single centre. Ashani Ratnayake, Ayeshani Rajapakse, Prabhashini Kumarihamy, S D K  Medagama


33. Thrombocytopaenia in critically ill COVID-19 patients: An observational study from a single centre : Ashani Ratnayake, Prabhashini Kumarihamy, Ayeshani Rajapakse: At the proceedings of the State of the art conference 2021 of Intensive care society, United Kingdom (virtual conference) on 7.12.2021 : Abstract in Ratnayake, A.; Kumarihamy, P.; Rajapakse, A.; Abeysinghe, H.; Perera, S.; Medagama, S. Thrombocytopaenia in critically ill COVID-19 patients: An observational study from a single centre . Journal of the Intensive Care Society ; 23(1):25-26, 2022.)


34. Building the state of the art from the hearts of our people : Ashani Ratnayake : At the proceedings of the State of the art conference 2021 of Intensive care society, United Kingdom (virtual conference) on 7.12.2021


35. Outcome of hypertensive patients with COVID-19 : Ayeshani Rajapakse, Ashani Ratnayake, Prabhashini Kumarihamy. At the proceedings of the State of the art conference 2021 of Intensive care society, United Kingdom (virtual conference) on 7.12.2021


36. Laborotary investigations on admission as predictors of outcome in symptomatic COVID-19 patients: Retrospective observational study from a single centre. Prabhashini Kumarihamy, Ashani Ratnayake , Sujeewa Gunathilake, Hiranya Abeysinghe : Presented at the proceedings of the Annual academic sessions of College of Internal Medicine Sri Lanka 2021


37. Maintaining surgical services for non-COVID patients in a COVID dedicated hospital- a successful quality improvement project from central Sri Lanka- Presented at the Proceedings of Evidenced based peri operative Medicine Conference (EBPOM) Ireland – Virtual congress on 21-23 September 2021 https://virtual.oxfordabstracts.com/#/event/2409/poster-gallery/grid?sort=titles&current=25


38. Comparison of the quick sequential organ failure assessment and systemic inflammatory response syndrome criteria for predicting sepsis in patients admitted to intensive care unit – study from a low-income setting: Ashani Ratnayake, Chamika Wanigasundara Presented at the proceedings of the 1st virtual international fluid academy days(iFAD) congress held on 23rd to 25th of November 2020


39. Analysis of sleep quality following gynaecological surgeries under general anaesthesia; a retrospective observational study _  Ashani Ratnayake, Amila Jayasinghe : presented at free papers Annual Scientific sessions 2018 – College of Anaesthesiologists of Sri Lanka.


40. Anaphylaxis under anaesthesia, a diagnostic challenge-Ashani Ratnayake, Anurangani Vithana : placed 2nd at the proceedings of Annual academic sessions of College of Emergency Medicine and Critical care, Sri Lanka 2017 November


41. Effectiveness of combination of paravertebral block and intraoperative blockade of Long thoracic and Thoracodorsal nerve in post operative pain relief after mastectomy and axillary clearance- A randomized single blinded study- Ashani Ratnayake, Sidarshi Kiriwaththuduwa, Dinithi Aththanayake, K U Senevirathne, Harsha Perera : for free papers- Annual Scientific Sessions 2016- College of Anaesthesiologists of Sri Lanka


42. Ultrasound assessment of anatomical variations of relationship between internal jugular vein to the common carotid artery in neonates and infants- K U Senevirathne, Ashani Ratnayake, Sakunthala Peiris At the proceedings of Annual academic Sessions 2016-Kandy society of Medicine


43. Variation in the anatomical relationship of the internal jugular vein to the common carotid artery with the degree of head rotation; a guide to central venous cannulation- K U Senevirathne, Ashani Ratnayake, Vasanti Pinto at the proceedings of the Annual academic Sessions 2016- Kandy Society of Medicine


44.  Relationship of the internal jugular vein to the common carotid artery at the level of cricoid cartilage; ‘How sure should we be’ K U Senevirathne, Ashani Ratnayake at the 31st scientific sessions of college of anaesthesiologists and Intensivists- for LMV Atygalle price competition on  31/01/2015


45. Disease Pattern in Out Patient Department Attendance in the Teaching Hospital, Peradeniya. 31st Annual academic sessions of Kandy Society of Medicine. Kandy, 2009


46. Trend analysis of Out Patient Department Attendance in the Teaching Hospital, Peradeniya. 31st Annual academic sessions of Kandy Society of Medicine. Kandy, 2009


47. Incidence and effects of Varicella Zoster Virus Infection on academic activities of medical undergraduates - a Five Year Follow-Up Study from Sri Lanka. 10th South East Asia Regional Scientific Meeting of the International Epidemiological Association 23rd - 26th May 2010, Colombo, Sri Lanka

1. Peri operative management of emergency renal transplant- conducted in Leicester general Hospital
2. Audit on appropriateness of antibiotic prescription. – conducted in Intensive care unit- Leicester General hospital