Browsing by Author "Rao, M Srinivasa"

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    The effects of climatic factors on the distribution and abundance of japanese encephalitis vectors in Kurnool district of Andhra Pradesh, India.
    (2010-03) Murty, U Suryanarayana; Rao, M Srinivasa; Arunachalam, N
    Background & objectives: Climatic attributes have been associated with relative mosquito abundance and transmission of mosquito borne infections in many parts of the world, especially in warm and tropical climatic regions. The main objectives of this study were to assess the change in seasonal pattern of Japanese encephalitis (JE) vectors, their density, to elucidate whether the lagged climate variables (precipitation, temperature and humidity) are associated with JE vector density, and to determine if temperature and precipitation are similarly important for the rise in the number of potential mosquito vectors for JE virus in the temperate climate of Andhra Pradesh, India. Methods: Mosquito samples were collected from Kurnool district of Andhra Pradesh using hand catch and light-trap methods during 2002 to 2006. The type and abundance of recovered species were compared to ecological correlates. In each geographic area, temperature and precipitation are the two possible proxy variables for mosquito density, in conjunction with other seasonal factors for JE epidemics. Results: Out of the various mosquito species collected, Culex gelidus and Cx. tritaeniorhynchus were noticed in high numbers. There was considerably high prevalence of Cx. gelidus (68.05%) in urban area than in rural areas whereas, Cx. tritaeniorhynchus (57.51%) was found to be more in rural areas than in the urban area. It is noticed that the factors such as rainfall and temperature were found to be correlated with the per man hour (PMH) density, whereas the humidity was inversely correlated with the PMH. Interpretation & conclusion: The environmental and eco-climatic factors are assisting in enhancing the breeding of these mosquitoes in Kurnool district of Andhra Pradesh, India. Both Cx. tritaeniorhyncus and Cx. gelidus are quite adaptable to these environmental conditions and this necessitates immediate control measures in both rural and urban areas of Kurnool district.
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    Prevalence of atrial fibrillation on a 24-hour Holter in adult Indians
    (Elsevier, 2024-06) Rao, M Srinivasa; Mullasari, Ajit; Hiremath, Jagdish S.; Sengottuvelu, G.; Jaiswal, Aparna; Jhala, Darshan; Makkar, Jitendra Singh; Kalmath, B.C.; Benjamin, Bino; Dharmadhikari, Annirudha; Tanna, Mihir; Khan, Aziz; Jain, Siddhant; Sambasivam, K.A.; Purnanand, A.; Raju, N S Rama; Sarkar, Goutam; Prajapati, Hiren; Verberk, Willem J.
    Objective: To evaluate paroxysmal atrial fibrillation (AF) prevalence in Indian adults who completed 24-Hour Holter monitoring. Methods: A total of 23,847 patients (36.9 % women) were analyzed for AF duration using a software algorithm. Results: AF was diagnosed in 4153 (17.4 %) patients with a median AF duration of 13 min and 55 s. Conclusion: AF prevalence was high and largely untreated. The short duration of AF episodes indicates a low likelihood of detection during clinical visits, highlighting its potential underestimation in Indian healthcare.