ABSTRACT
Sardar Sarovar Irrigation Canal system was constructed by Narmada Valley Development Authority (NVDA) to cater to drinking water as well as for irrigation purposes in Jalore and Barmer districts of Western Rajasthan. To cater to the needs of water for the villagers in the command areas, ‘Diggies’ (surface water tanks) with ‘Sumpwells’ (water supply surface tanks) were installed. In a health impact assessment study of the irrigation canals from December 2010 to February 2016, the breeding of two major malaria vectors. An. culicifacies and An. stephensi were observed in diggies and sumpwells. As a biological control, Gambusia affanis fishes were employed for larval control in such stagnated water sites during the intervention phase viz. February 2012 in 251 diggies and 251 sumpwells. A significant reduction of breeding in diggies (99.54%) and sumpwells (97.81%) was observed. The positivity and larval density (dip index) were monitored in the control from up to February 2016 for their sustainability.
ABSTRACT
Background: There is a strong need to develop a photopatch test tray suitable for Indian patients of photodermatitis as European/Scandinavian photopatch test trays may not be wholly relevant for them. Aim: We carried out this study using photoallergens relevant in the Indian context to determine their relevance in patients of photodermatitis. Methods: Thirty patients (M:F, 23:7) between 19 and 76 years of age of photodermatitis and 10 controls were patch- and photopatch tested with 20 common photoallergens. In addition, the patients were also (photo) patch tested with articles of daily use as and when these were suspected to be the cause. Results: Forty-three positive reactions to one or more antigens were seen in 22 (74%) patients. Fourteen positive photopatch tests to seven allergens were observed in 10 (33%) patients, and nine (30%) of them had a definite relevance. The most common contact allergen was fragrance mix (FM) (30%), followed by p-phenylenediamine (20%) and Parthenium hysterophorous (17%). The definite relevance of the patch- and photopatch tests could be correlated in 47% of these patients. Conclusions: FM is the most common contact and photocontact allergen among the various photopatch test antigens. Although differences in technique and evaluation make direct comparison between different centers difficult, still photopatch testing remains an integral part and gold standard for the work-up of the photosensitive patients.
ABSTRACT
BACKGROUND: The time for cardiac repolarization and homogeneity of repolarization on surface electrocardiogram is denoted by QT interval and QT dispersion, respectively. Numerous studies suggest an association between an increased dispersion of the QT interval obtained from the 12-lead electrocardiogram and increased risk for serious cardiac events. METHODS AND RESULTS: We evaluated the effect of thrombolysis and percutaneous transluminal coronary angioplasty on QT dispersion in acute coronary syndrome in 45 patients (age: 55 +/- 6 years). QT dispersion was calculated on admission and immediately after the procedure (thrombolysis and percutaneous transluminal coronary angioplasty). There was a significant decrease in QT dispersion after percutaneous transluminal coronary angioplasty (75 +/- 21 ms to 38 +/- 20 ms, p < 0.0001). In a subset of these patients with acute myocardial infarction (n = 29) who underwent thrombolysis, QT dispersion decreased only marginally (78 +/- 19 ms to 67 +/- 22 ms, p < 0.05). Even in this subgroup, there was a significant decrease in QT dispersion after percutaneous transluminal coronary angioplasty (to 37 +/- 22 ms, p < 0.0001). In patients with unstable angina (n = 16), there were similar significant changes after percutaneous transluminal coronary angioplasty (p < 0.0001). CONCLUSIONS: These results suggest a highly significant decrease in QT dispersion after percutaneous transluminal coronary angioplasty compared to a less significant decrease after thrombolysis, which may have clinical implications.