Résumé
Currently, there is not a uniform consensus regarding the number of criteria or specific cut-off values for the variety of tests that are used to diagnose allergic bronchopulmonary aspergillosis [ABPA]. Traditionally, an eosinophil count >1000cells/microl is considered an important criterion in the diagnosis of ABPA. The goal of this study was to delineate the significance of the peripheral blood eosinophil count in the diagnosis of ABPA, and the relationship between eosinophil counts and lung function and immunological and radiological parameters. This study was a retrospective analysis of the data from ABPA patients who were managed in our chest clinic. Based on their eosinophil count, the patients were classified into the following three categories: <500, 500-1000 and >1000cells/microl. The spirometric, immunological and radiological characteristics were also assessed. We studied 108 males and 101 females with a combined mean [ +/- SD] age of 34.1 +/- 12.5years. The median [IQR] eosinophil count at diagnosis was 850 [510-1541]cells/microl, and 60% of the patients had an eosinophil count of <1000cells/microl. We found no relationship between eosinophil count and lung function using spirometry and other immunological parameters. The median eosinophil count was higher in patients with an high resolution computed tomography [HRCT] chest finding of bronchiectasis [986 vs. 620, p<0.001] vs. those without and in patients with high-attenuation mucus [1200 vs. 800, p<0.001] compared to those without high-attenuation mucus. A peripheral blood eosinophil count has limited utility in the diagnosis of ABPA, and there is no relationship between eosinophil count and lung function or other immunological parameters. The higher eosinophil count that we observed in patients with central bronchiectasis or high-attenuation mucus suggests that eosinophils are primary mediators of inflammatory activity in ABPA
Résumé
Bungarus caeruleus [Indian common krait] bite during monsoons is common in Northwest India. This study was undertaken to find the effectiveness of neostigmine and polyvalent antivenom in improving neuromuscular paralysis following bite. All the consecutive patients admitted between June 2007 and December 2008 with common krait bite, identified either from brought snake or circumstantial evidence were studied. Ten vials of polyvalent antivenom and three doses of 2.5 mg neostigmine at 30 min intervals after administration of 0.6 mg of atropine were administered I.V. and patients were assessed for any improvement in neuroparalysis. Seventy-two patients were admitted during the study period. All the patients except two came from rural areas and were brought between June and September. Sixty-two patients were bitten during the day while clearing bricks, cutting grass or walking. The mean time interval between bite and arrival to hospital was 4.5 h. None of the patients showed any improvement following treatment and all patients developed respiratory paralysis, requiring assisted ventilation. Seventy survived and two died. Neostigmine is ineffective in reversing or improving neuroparalytic features in patients with B. caeruleus bite even at higher dose than normally recommended