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The Diversity of Human Dirofilariasis in Western Sri Lanka.

Chandrasena TGAN, Premaratna R, Mallawaarachchi CH, Gunawardena NK, Gunathilaka PADHN, Abeyewickrama WY, de Silva NR.

Biomed Res Int. 2019 Apr 18;2019:9209240. doi: 10.1155/2019/9209240. eCollection 2019.


A preliminary survey of filarial parasites in dogs and cats in Sri Lanka.

Mallawarachchi CH, Chandrasena NTGA, Wickramasinghe S, Premaratna R, Gunawardane NYIS, Mallawarachchi NSMSM, de Silva NR.

PLoS One. 2018 Nov 2;13(11):e0206633. doi: 10.1371/journal.pone.0206633. eCollection 2018.


Long-term survival of a patient with single atrium and single ventricular heart: a case report

Lohithalingam P, Lakmini KMS, Weerasinghe S, Pereira T, Premaratna R.

Ceylon Med J. 2018 Jun 30;63(2):80-81. No abstract available.


Morbidity management and disability prevention for lymphatic filariasis in Sri Lanka: Current status and future prospects.

Chandrasena N, Premaratna R, Gunaratna IE, de Silva NR.

PLoS Negl Trop Dis. 2018 May 10;12(5):e0006472. doi: 10.1371/journal.pntd.0006472. eCollection 2018 May.


Human infection with sub-periodic Brugia spp. in Gampaha District, Sri Lanka: a threat to filariasis elimination status?

Mallawarachchi CH, Nilmini Chandrasena TGA, Premaratna R, Mallawarachchi SMNSM, de Silva NR.

Parasit Vectors. 2018 Jan 29;11(1):68. doi: 10.1186/s13071-018-2649-3.


Septicaemia caused by Elizabethkingia-sp in a 'healthy' Sri Lankan man.

Sebastiampillai BS, Luke NV, Silva S, De Silva ST, Premaratna R.

Trop Doct. 2018 Jan;48(1):62-63. doi: 10.1177/0049475517717135. Epub 2017 Jun 22. No abstract available.


Widespread subcutaneous necrosis in spotted fever group Rickettsioses from the coastal belt of Sri Lanka- a case report.

Luke N, Munasinghe H, Balasooriya L, Premaratna R.

BMC Infect Dis. 2017 Apr 17;17(1):278. doi: 10.1186/s12879-017-2375-z.


Extended spectrum beta lactamase producing organisms causing urinary tract infections in Sri Lanka and their antibiotic susceptibility pattern -A hospital based cross sectional study.

Fernando MM, Luke WA, Miththinda JK, Wickramasinghe RD, Sebastiampillai BS, Gunathilake MP, Silva FH, Premaratna R.

BMC Infect Dis. 2017 Feb 10;17(1):138. doi: 10.1186/s12879-017-2250-y.


Genotypic characterization of Orientia tsutsugamushi from patients in two geographical locations in Sri Lanka.

Premaratna R, Blanton LS, Samaraweera DN, de Silva GN, Chandrasena NT, Walker DH, de Silva HJ.

BMC Infect Dis. 2017 Jan 13;17(1):67. doi: 10.1186/s12879-016-2165-z.


Sporadic cases of adult measles: a research article.

Premaratna R, Luke N, Perera H, Gunathilake M, Amarasena P, Chandrasena TG.

BMC Res Notes. 2017 Jan 10;10(1):38. doi: 10.1186/s13104-017-2374-6.


Surveillance for transmission of lymphatic filariasis in Colombo and Gampaha districts of Sri Lanka following mass drug administration.

Chandrasena NT, Premaratna R, Samarasekera DS, de Silva NR.

Trans R Soc Trop Med Hyg. 2016 Dec;110(10):620-622. Epub 2016 Nov 5.


Clinical Evaluation of Rapid Diagnostic Test Kit for Scrub Typhus with Improved Performance.

Kim YJ, Park S, Premaratna R, Selvaraj S, Park SJ, Kim S, Kim D, Kim MS, Shin DH, Choi KC, Kwon SH, Seo W, Lee NT, Kim SH, Kang HK, Kim YW.

J Korean Med Sci. 2016 Aug;31(8):1190-6. doi: 10.3346/jkms.2016.31.8.1190. Epub 2016 Jun 7.


Thyrotoxic crisis presenting with jaundice.

Wickramasinghe RD, Luke WA, Sebastiampillai BS, Gunathilake MP, Premaratna R.

BMC Res Notes. 2016 Jun 23;9:320. doi: 10.1186/s13104-016-2126-z.


Gloriosa superba poisoning mimicking an acute infection- a case report.

Premaratna R, Weerasinghe MS, Premawardana NP, de Silva HJ.

BMC Pharmacol Toxicol. 2015 Sep 28;16:27. doi: 10.1186/s40360-015-0029-6.


Scrub typhus mimicking Parkinson's disease.

Premaratna R, Wijayalath SH, Miththinda JK, Bandara NK, de Silva HJ.

BMC Res Notes. 2015 Sep 15;8:438. doi: 10.1186/s13104-015-1428-x.


Secondary bacteraemia in adult patients with prolonged dengue fever.

Premaratna R, Dissanayake D, Silva FH, Dassanayake M, de Silva HJ.

Ceylon Med J. 2015 Mar;60(1):10-2. doi: 10.4038/cmj.v60i1.7165.


Transplacental transfer of dengue.

Ekanayake CD, Padumadasa S, Premaratna R, Rajendrajith S, Samaranayake WW.

Ceylon Med J. 2014 Dec;59(4):145-6. doi: 10.4038/cmj.v59i4.7871. No abstract available.


Rickettsial infection among military personnel deployed in Northern Sri Lanka.

Premaratna R, Ariyaratna N, Attanayake C, Bandara W, Chandrasena N, de Silva HJ.

BMC Infect Dis. 2014 Dec 20;14:3864. doi: 10.1186/s12879-014-0688-8.


A patient with severe body aches without fever progressing to dengue shock syndrome.

Premaratna R, Miththinda JK, Abeyrathna C, de Silva HJ.

Ceylon Med J. 2013 Dec;58(4):178-9. doi: 10.4038/cmj.v58i4.6323. No abstract available.


Rickettsioses in the central hills of Sri Lanka: serological evidence of increasing burden of spotted fever group.

Kularatne SA, Rajapakse RP, Wickramasinghe WM, Nanayakkara DM, Budagoda SS, Weerakoon KG, Edirisinghe JS, Premaratna R.

Int J Infect Dis. 2013 Nov;17(11):e988-92. doi: 10.1016/j.ijid.2013.05.014. Epub 2013 Jul 17.


Timing, predictors, and progress of third space fluid accumulation during preliminary phase fluid resuscitation in adult patients with dengue.

Premaratna R, Ragupathy A, Miththinda JK, de Silva HJ.

Int J Infect Dis. 2013 Jul;17(7):e505-9. doi: 10.1016/j.ijid.2012.12.021. Epub 2013 Feb 4.


Marked eosinophilia due to intestinal strongyloidiasis in an immunocompetent patient.

Rodrigo KM, Premaratna R, Chandrasena TG, de Silva NR, de Silva HJ.

Ceylon Med J. 2012 Dec;57(4):172-3. doi: 10.4038/cmj.v57i4.5088. No abstract available.


Scrub typhus pneumonitis.

Premaratna R, Ariyaratna N, Botheju WI, Bandara NK, de Silva HJ.

Int J Infect Dis. 2013 Apr;17(4):e284. doi: 10.1016/j.ijid.2012.11.014. Epub 2012 Dec 17. No abstract available.


Clinically helpful rickettsial disease diagnostic IgG titers in relation to duration of illness in an endemic setting in Sri Lanka.

Premaratna R, Weerasinghe S, Ranaweera A, Chandrasena TG, Bandara NW, Dasch GA, de Silva HJ.

BMC Res Notes. 2012 Nov 30;5:662. doi: 10.1186/1756-0500-5-662.


A patient with spotted fever group rickettsiosis mimicking connective tissue disease.

Premaratna R, Liyanaarachchi EW, Rajapakse RP, Bandara NK, de Silva HJ.

Ceylon Med J. 2012 Sep;57(3):127-8. doi: 10.4038/cmj.v57i3.4707. No abstract available.


Neck stiffness and papilloedema due to Harada syndrome.

Nawasiwatte BM, Premaratna R, Amarasinghe B, de Silva HJ.

Ceylon Med J. 2012 Jun;57(2):88-9. doi: 10.4038/cmj.v57i2.4465. No abstract available.


A case series of spotted fever rickettsiosis with neurological manifestations in Sri Lanka.

Kularatne SA, Weerakoon KG, Rajapakse RP, Madagedara SC, Nanayakkara D, Premaratna R.

Int J Infect Dis. 2012 Jul;16(7):e514-7. doi: 10.1016/j.ijid.2012.02.016. Epub 2012 Apr 26.


Repeated dengue shock syndrome and 'dengue myocarditis' responding dramatically to a single dose of methyl prednisolone.

Premaratna R, Rodrigo KM, Anuratha A, de Alwis VK, Perera UD, de Silva HJ.

Int J Infect Dis. 2012 Jul;16(7):e565-9. doi: 10.1016/j.ijid.2012.02.014. Epub 2012 Apr 20.


Comparison of seven commercial antigen and antibody enzyme-linked immunosorbent assays for detection of acute dengue infection.

Blacksell SD, Jarman RG, Gibbons RV, Tanganuchitcharnchai A, Mammen MP Jr, Nisalak A, Kalayanarooj S, Bailey MS, Premaratna R, de Silva HJ, Day NP, Lalloo DG.

Clin Vaccine Immunol. 2012 May;19(5):804-10. doi: 10.1128/CVI.05717-11. Epub 2012 Mar 21.


Evidence of acute rickettsioses among patients presumed to have chikungunya fever during the chikungunya outbreak in Sri Lanka.

Premaratna R, Halambarachchige LP, Nanayakkara DM, Chandrasena TG, Rajapakse RP, Bandara NK, de Silva HJ.

Int J Infect Dis. 2011 Dec;15(12):e871-3. doi: 10.1016/j.ijid.2011.09.010. Epub 2011 Oct 22.


Evaluation of six commercial point-of-care tests for diagnosis of acute dengue infections: the need for combining NS1 antigen and IgM/IgG antibody detection to achieve acceptable levels of accuracy.

Blacksell SD, Jarman RG, Bailey MS, Tanganuchitcharnchai A, Jenjaroen K, Gibbons RV, Paris DH, Premaratna R, de Silva HJ, Lalloo DG, Day NP.

Clin Vaccine Immunol. 2011 Dec;18(12):2095-101. doi: 10.1128/CVI.05285-11. Epub 2011 Oct 19.


What clinicians who practice in countries reaching malaria elimination should be aware of: lessons learnt from recent experience in Sri Lanka.

Premaratna R, Galappaththy G, Chandrasena N, Fernando R, Nawasiwatte T, de Silva NR, de Silva HJ.

Malar J. 2011 Oct 14;10:302. doi: 10.1186/1475-2875-10-302.


Poor diagnostic accuracy of commercial antibody-based assays for the diagnosis of acute Chikungunya infection.

Blacksell SD, Tanganuchitcharnchai A, Jarman RG, Gibbons RV, Paris DH, Bailey MS, Day NP, Premaratna R, Lalloo DG, de Silva HJ.

Clin Vaccine Immunol. 2011 Oct;18(10):1773-5. doi: 10.1128/CVI.05288-11. Epub 2011 Aug 24.


Ultrasonographic visualisation of live Wuchereria bancrofti adult worms in situ.

Chandrasena TG, Gunawardena NK, Premaratna R, de Silva NR.

Ceylon Med J. 2011 Jun;56(2):82-3. No abstract available.


Effect of a single dose of methyl prednisolone as rescue medication for patients who develop hypotensive dengue shock syndrome during the febrile phase: a retrospective observational study.

Premaratna R, Jayasinghe KG, Liyanaarachchi EW, Weerasinghe OM, Pathmeswaran A, de Silva HJ.

Int J Infect Dis. 2011 Jun;15(6):e433-4. doi: 10.1016/j.ijid.2011.03.006. Epub 2011 May 6. No abstract available.


Should colloid boluses be prioritized over crystalloid boluses for the management of dengue shock syndrome in the presence of ascites and pleural effusions?

Premaratna R, Liyanaarachchi E, Weerasinghe M, de Silva HJ.

BMC Infect Dis. 2011 Feb 28;11:52. doi: 10.1186/1471-2334-11-52.


Intravenous N-acetylcysteine in dengue-associated acute liver failure.

Kumarasena RS, Mananjala Senanayake S, Sivaraman K, de Silva AP, Dassanayake AS, Premaratna R, Wijesiriwardena B, de Silva HJ.

Hepatol Int. 2010 May 28;4(2):533-4. doi: 10.1007/s12072-010-9176-4. No abstract available.


Contribution of rickettsioses in Sri Lankan patients with fever who responded to empirical doxycycline treatment.

Premaratna R, Rajapakse RP, Chandrasena TG, Nanayakkara DM, Bandara NK, Kularatna SA, Eremeeva ME, Dasch GA, de Silva HJ.

Trans R Soc Trop Med Hyg. 2010 May;104(5):368-70. doi: 10.1016/j.trstmh.2009.10.006.


Scrub typhus mimicking enteric fever; a report of three patients.

Premaratna R, Nawasiwatte BM, Niriella MA, Chandrasena TG, Bandara NK, Rajapakse RP, de Silva HJ.

Trans R Soc Trop Med Hyg. 2010 Apr;104(4):309-10. doi: 10.1016/j.trstmh.2009.08.011. Epub 2009 Sep 17.


Unusual pancytopenia secondary to haemophagocytosis syndrome in rickettsioses.

Premaratna R, Williams HS, Chandrasena TG, Rajapakse RP, Kularatna SA, de Silva HJ.

Trans R Soc Trop Med Hyg. 2009 Sep;103(9):961-3. doi: 10.1016/j.trstmh.2009.04.003. Epub 2009 May 15.


Rickettsioses presenting as major joint arthritis and erythema nodosum: description of four patients.

Premaratna R, Chandrasena TG, Rajapakse RP, Eremeeva ME, Dasch GA, Bandara NK, de Silva HJ.

Clin Rheumatol. 2009 Jul;28(7):867-8. doi: 10.1007/s10067-009-1166-3. Epub 2009 Mar 25.


The global burden of snakebite: a literature analysis and modelling based on regional estimates of envenoming and deaths.

Kasturiratne A, Wickremasinghe AR, de Silva N, Gunawardena NK, Pathmeswaran A, Premaratna R, Savioli L, Lalloo DG, de Silva HJ.

PLoS Med. 2008 Nov 4;5(11):e218. doi: 10.1371/journal.pmed.0050218.


Accidental scrotal burns from paraquat while handling a patient.

Premaratna R, Rathnasena BG, de Silva HJ.

Ceylon Med J. 2008 Sep;53(3):102-3.


A clinical guide for early detection of dengue fever and timing of investigations to detect patients likely to develop complications.

Premaratna R, Pathmeswaran A, Amarasekara ND, Motha MB, Perera KV, de Silva HJ.

Trans R Soc Trop Med Hyg. 2009 Feb;103(2):127-31. doi: 10.1016/j.trstmh.2008.07.024. Epub 2008 Sep 21.


Rickettsial infections and their clinical presentations in the Western Province of Sri Lanka: a hospital-based study.

Premaratna R, Loftis AD, Chandrasena TG, Dasch GA, de Silva HJ.

Int J Infect Dis. 2008 Mar;12(2):198-202. Epub 2007 Sep 27.


Dengue fever mimicking acute appendicitis.

Premaratna R, Bailey MS, Ratnasena BG, de Silva HJ.

Trans R Soc Trop Med Hyg. 2007 Jul;101(7):683-5. Epub 2007 Mar 21.


Modified Dermatology Life Quality Index as a measure of quality of life in patients with filarial lymphoedema.

Chandrasena TG, Premaratna R, Muthugala MA, Pathmeswaran A, de Silva NR.

Trans R Soc Trop Med Hyg. 2007 Mar;101(3):245-9. Epub 2006 Nov 13.


Acute hearing loss due to scrub typhus: a forgotten complication of a reemerging disease.

Premaratna R, Chandrasena TG, Dassayake AS, Loftis AD, Dasch GA, de Silva HJ.

Clin Infect Dis. 2006 Jan 1;42(1):e6-8. Epub 2005 Nov 29.


Red blood cell antioxidant levels in Wuchereria bancrofti infection.

Premaratna R, Chandrasena TG, Abeyewickreme W, Chandrasena LG, Senarath S, de Silva NR, de Silva HJ.

Exp Parasitol. 2002 Oct;102(2):81-8.


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