BackgroundDengue is an arboviral infection that classically presents with fever, joint pain, headaches, skin flush and morbilliform rashes. The incidence of neurological symptoms and complications in dengue varies from 1 to 25 % that include encephalopathy, Guillain–Barre syndrome (GBS), acute motor weakness, seizures, neuritis, hypokalaemic paralysis, pyramidal tract signs, and a few more. Dengue fever as an antecedent infection in GBS is uncommon.Case presentationA 34-years-old Sri Lankan Sinhalese male presented with fever, headache and myalgia of 3 days and developed leucopenia and thrombocytopenia without evidence of haemoconcentration. The diagnosis of dengue fever was confirmed as he had positive dengue NS1 antigen test on the third day of fever. He made full recovery and was discharged after 4 days of hospital stay. Six days later, he presented with history of acute flaccid weakness of both lower limbs and upper limbs which was of progressive ascending nature. The electromyography had evidence of demyelinating neuropathy and cerebrospinal fluid showed albuminocytological dissociation. Subsequently, IgM for dengue virus was positive.ConclusionDengue is endemic in Sri Lanka. Post dengue Guillain–Barre syndrome is a potential neurological complications of this infection.

BackgroundVitamin B12 deficiency is often diagnosed with hematological manifestations of megaloblastic macrocytic anemia, which is usually the initial presentation. Neurological symptoms are often considered to be late manifestations and usually occur after the onset of anemia. Sub acute combined cord degeneration, which is a rare cause of myelopathy is however the commonest neurological manifestation of vitamin B12 deficiency.Case presentationWe present a case of a 66 year old Sinhalese Sri Lankan female, who is a strict vegetarian, presenting with one month’s history suggestive of Sub-acute combined cord degeneration in the absence of haematological manifestations of anaemia. Her Serum B12 levels were significantly low, after which she was treated with hydroxycobalamine supplementation, showing marked clinical improvement of symptoms, with normalization of serum B12 levels. Hence, the diagnosis of vitamin B12 deficiency was confirmed retrospectively.ConclusionVitamin B12 deficiency could rarely present with neurological manifestations in the absence of anaemia. Therefore a high index of suspicion is necessary for the early diagnosis and prompt treatment in order to reverse neurological manifestations, as the response to treatment is inversely proportionate to the severity and duration of the disease.

BackgroundAdvanced life support (ALS) and cardio pulmonary resuscitation, provided at the right time is essential for improving mortality in medical emergencies. Accurate knowledge and skills on this regard, in all medical personals is an essential part of medical education and it should be up to date with varying protocols. The aim of this study is to assess the knowledge and attitudes among the undergraduate medical students and medical officers in the Teaching Hospital Peradeniya and provide suggestions to improve the training programme on ALS.MethodsA standardized self-administered questionnaire regarding knowledge and attitudes on ALS was filled by 4th and final year medical students, and medical officers, and the data was analyzed.ResultsThere were 411 eligible candidates and of them 130 (31.6 %) were 4th year medical students, 221 (53.8 %) were final year medical students and 60 (14.6 %) were medical officers. Of the medical officers, only 15.8 % indicated that the internship training was adequate to handle an emergency confidently. Approximately 45 % of the medical officers and 34.6 % of the final year medical students were confident of saving lives with their current ALS knowledge. However, only 22 % of 4th year medical students were confident in saving the life of a patient.ConclusionsOverall, just over 10 % of participants demonstrated inadequate ALS knowledge scores. A significantly higher proportion of final year medical students had good knowledge, compared to medical officers and 4th year students. Only one-third of participants were confident in saving a life with their current ALS knowledge. Nearly all participants thought that the ALS course should be reevaluated frequently.

BackgroundAcute coronary syndrome after hymenoptera stings or exposure to environment toxins is referred to as the Kounis syndrome or allergic myocardial ischaemia with or without infarction. We report a case of hornet (Vespa affinis) sting causing Kounis syndrome in Sri Lanka and present a review of literature.Case presentationA 60-year -old female with diabetes mellitus and known allergy to bee venom was stung by a hornet on the right hand. Within 30 minutes she developed hypotension and wide spread T wave inversion in the 12 leads ECG that remained unchanged about 5 hours and reversed back to normal.ConclusionHymenoptera stings can induce acute coronary syndrome either by direct effect of venom constituents on the coronary endothelium or through inflammatory mediators induced allergic reaction on coronary vasculature. Early recognition of Kounis syndrome is needed in hornet stings to implement necessary treatments.

BackgroundRabies is a global problem which occurs in more than 150 countries and territories including Sri Lanka, where human deaths from rabies are in decline whilst resources incurred for prevention of rabies are in sharp incline over the years. In this backdrop, we aim to audit the post-exposure treatment (PET) in rabies and the pattern of animal bites in a tertiary care hospital in Sri Lanka.MethodsThis study was carried out at Teaching Hospital Peradeniya (THP), in the Central Province of Sri Lanka from 2007-2012 where a registry of all PET has been maintained. The data from registries were extracted after obtaining permission from the hospital authority for analysis.ResultsThere were 19 661 cases of animal exposure presented to the THP over the study period of 5 years. Of them, the majority-17431(88.66 %) were definitive animal bites whilst scratches accounted for 2147(10.92 %) and 83(0.42 %) were miscellaneous exposures. According to the severity grading of injuries, 7 362(37 %) were major bites and 12 226(62 %) were minor bites. The domestic unvaccinated dogs and cats were responsible for 10,662 (54 %) and 3,982 (20 %) of exposures respectively. The total cost incurred for both anti-rabies vaccine and anti rabies serum during the study period is 24,795,888.00 Sri Lankan rupees (190,737.60US$).ConclusionsThe pattern of animal bite shows high dominance of domestic dogs and cats exposures. The age of victims ranged from infancy to old-age with higher incidence among children. Even though PET is costly, continued surveillance and rabies control is still necessary along with public education and vaccination of domestic pets.