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Biomedical subjects

S D Purohit

Publications and source records attributed to S D Purohit.

At least 37 records · Page 2Linked to original sources
PubMedDate not supplied

Experimental pulmonary fluorosis.

An experimental study was undertaken to observe effects of fluoride ingestion on lung tissue. The study was conducted on 15 albino rabbits of either sex and experimental fluorosis was induced by daily oral administration of sodium fluoride (NaF) solution. Rabbits were divided into three groups according to the quantity of fluoride ingestion: Group A: rabbits fed with 10 mg/kg/day NaF, Group B: 20 mg/kg/day NaF; and Group C: controls. After six months, the rabbits were sacrificed and their lung tissue was submitted for histopathological examination and fluoride content estimation. On gross examination, pale areas on the surface and dark brown congested areas on cut-section of lungs were seen in rabbits of groups A and B. Histopathological changes of alveolar haemorrhage, congestion, edema fluid, necrosis of alveolar epithelium, distortion of alveolar architecture and desquamation of epithelium of respiratory tract with damage to tracheal cartilage were observed in these groups. These changes were more marked in group B rabbits. Fluoride content of lung tissue homogenate was significantly higher in groups A and B (mean 1.206 ppm and 1.978 ppm respectively) as compared to control (0.1585 ppm). It was concluded that prolonged fluoride ingestion damages pulmonary tissues of rabbits. To the best of our knowledge, effect of chronic fluoride ingestion on lungs has not been reported in the literature, therefore, we had undertaken this study to analyse the effect of chronic fluoride ingestion on lungs.

Animals↗
PubMedDate not supplied

Development of pleural effusion in patients during anti-tuberculous chemotherapy: analysis of twenty-nine cases with review of literature.

Twenty-nine cases of tuberculosis developing pleural effusion (PE) during antituberculous chemotherapy (ATT) were analysed for clinical presentation and management outcome. Sixteen (55%) patients had pulmonary tuberculosis alone while rest had associated or isolated extrapulmonary tuberculosis. Thirteen (44.8%) patients developed PE during the 5th-8th week of chemotherapy and nine (31%) during 9th-12th week. Eighteen (62%) patients were on either HRZE or HRE while five (17.2%) were on SHRZ regimen before developing PE. All cases had exudative PE. Pleural fluid centrifuge was smear positive for AFB in two (6.8%) cases and culture positive for Mycobacterium tuberculosis in four (13.7%) cases. Pleural biopsy sections were negative for either AFB or tuberculous histology in 15 out of the 24 biopsies done. Twenty-four (82.7%) patients showed good response on the same ATT without modification. Development of PE during successful ATT seems to be an extension of paradoxical events having an immunological basis, which does not necessarily require any modification in chemotherapy.

Adolescent↗
PubMedDate not supplied

Sclerosing hemangioma of the lung.

An extremely rare case of sclerosing hemangioma lung is described in a patient who presented as right sided pleural effusion with recurrence.

Histiocytoma, Benign Fibrous↗
PubMedDate not supplied

Thoracoplasty with intercostal myoplasty for closure of an empyema cavity and bronchopleural fistula.

Intercostal myoplasty with thoracoplasty was performed in 42 patients with tubercular and bacterial empyema, after the failure of conventional therapy with antibiotics, antitubercular drugs and closed drainage. In the 18 cases with bronchopleural fistula, this was closed and the drainage tube was removed after 23 to 51 days. The procedure was well-tolerated by all the patients, and is safe and effective in patients with chronic empyema with or without bronchopleural fistula where resectional surgery or decortication is not possible due to extensive bilateral disease or low cardiorespiratory reserve. Successful ligation and closure of bronchopleural fistula without any mortality was a unique feature of this procedure.

Adult↗