Coccidioidin skin hypersensitivity in a section of North Indian population.
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Biomedical subjects
Publications and source records attributed to S Kaur.
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Fifty-eight patients (26 males - mean age 52.5 years, 32 females - mean age 58.5 years) from two different leprosy colonies (Ambala and Jagadhari) were studied. Maximum number of the patients (48.4%) belonged to Uttar Pradesh. The clinical diagnosis was LLp:41(70.7%), LLs:14(24.2%), LL-burnt-out, BB-BL and BT: one each (1.7%). Mean duration of disabilities/deformities in these patients was 21.5 years. A peculiar myokymic movement of periorbital muscles was observed in 20 patients (34.5%). While dapsone monotherapy was continued in 55 patients, MDT (WHO-multibacillary regimen) was started in three patients. Vocational advice was given to 23 patients; and 35 (60.4%) patients were declared as "destitutes".
A study was undertaken to estimate bacillaemia and M. leprae antigen detection in 54 paucibacillary leprosy patients (TT, BT). Acid-fast bacilli were detected in the blood of 14.8% patients of borderline tuberculoid (BT) leprosy. M. leprae antigen was demonstrated in 48.2% patients of BT leprosy. Slit-skin smears were negative in all these patients. At the end of treatment (6 months of WHO-MDT) all the follow-up blood samples were negative for both bacillaemia and M. leprae antigen in the serum.
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Disturbances in cardiac autonomic functions are known to occur in patients of lepromatous leprosy and dilated cardiomyopathy. We have analyzed the number of cardiac autonomic ganglion cells in patients of lepromatous leprosy (2 cases), dilated cardiomyopathy (2 cases) and compared with those of control subjects (2 cases). The average number of ganglion cells in cases of dilated cardiomyopathy (1164) and leprosy (1138) did not show any significant deviation from the average neuronal number of control subjects (1352).
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There is considerable controversy regarding the frequency and significance of vascular lesions in leprosy. Thirty-five patients of leprosy under 40 years of age, without any local and systemic arterial disease, with normal looking hands and feet, were subjected to brachial arteriography. One patient also had posterior tibial arteriography. Diagnosis of leprosy was confirmed by bacteriologic and histopathologic technics. Biopsy material was studied from the area of radiographic abnormality, similar material was obtained from nine matched control subjects at autopsy. Skin thermometry and reflex vasodilatation were studied in eight cases. Various fractions of serum lipids and cholesterol were estimated in all patients and found to be within normal range. Arteriographic abnormalities such as occlusion, narrowing, tortuosity, dilatation, poststenotic dilatation, irregularity and incomplete filling of the lumen by radio-opaque material, were seen in more than two vessels in 50% of the arteriograms in wrist and palm; digital vessels showed abnormality in 75% to 94% of cases. The ulnar artery was more frequently involved (74%) than the radial (50%). Superficial and deep palmar arches were equally affected. Increased vascularity in hypothenar eminence area was seen in three arteriograms. Marked increase in arcuate vessels was noted in 60% of patients. Some arcuate vessels were serving as collaterals. Histologically, all grades of vessels including capilaries showed changes in nearly half of the patients. Reflex vasodilatation was lost in three patients of dimorphous leprosy, and impaired or absent in three of five patients of lepromatous leprosy. There was no predilection for any form of leprosy to show arterial changes more than others. This study clearly demonstrates that the vascular involvement in leprosy is very frequent and must be playing an important role in causing mutilations and deformities of hands and feet.