401
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Roy DN, Mitra S, Biswas TK, Dasbiswas A, Das D, Chatterjee B, Dutta SK. Bence-Jones myeloma. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1988; 86:70-2. [PMID: 3397569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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402
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Mitra S, Roy DN, Biswas TK, Pal S, Chakraborty A, Das D, Mondal PS, Das PK, Biswas AK. A case of tuberculous haemorrhagic pericardial effusion with some therapeutic problem. Indian Heart J 1987; 39:365-9. [PMID: 3455400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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403
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Guha R, Das D, Grover P, Guha B. Germicidal activity of tar distillate obtained from pyrolysis of rice husk. ACTA ACUST UNITED AC 1987. [DOI: 10.1016/0269-7483(87)90133-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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404
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Weiland DS, Konstam MA, Salem DN, Martin TT, Cohen SR, Zile MR, Das D. Contribution of reduced mitral regurgitant volume to vasodilator effect in severe left ventricular failure secondary to coronary artery disease or idiopathic dilated cardiomyopathy. Am J Cardiol 1986; 58:1046-50. [PMID: 3776843 DOI: 10.1016/s0002-9149(86)80036-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Although vasodilators improve cardiac output in severe left ventricular (LV) failure, the degree to which reduction in mitral regurgitation (MR) contributes to this response is unknown. In the present study, nitroprusside-induced changes in forward cardiac output were compared with simultaneous radionuclide LV output in 14 patients with severe LV systolic dysfunction in the absence of known primary valvular disease. Regurgitant output was estimated as LV output minus forward output and regurgitant fraction was calculated as regurgitant output/LV output. At rest, LV ejection fraction averaged 0.16 +/- 0.04 (mean +/- standard deviation). Patients were classified into 2 groups based on regurgitant fraction at rest. Group I (n = 5) had little or no detectable valvular regurgitation, with regurgitant fraction less than 0.10; group II (n = 9) had evidence of MR with regurgitant fraction greater than 0.30. Nitroprusside increased forward cardiac output in all patients in both groups, but this effect was significantly greater in group II (64 +/- 34%) than in group I (31 +/- 17%) (p less than 0.01). Nitroprusside decreased regurgitant fraction in all group II patients, with mean regurgitant fraction decreasing from 0.44 +/- 0.12 to 0.26 +/- 0.15 (p less than 0.005). Thus, a large percentage of patients with severe LV systolic dysfunction have clinically relevant MR, defined as a regurgitant fraction greater than 0.30. Nitroprusside has a greater effect on forward cardiac output in patients with LV failure and MR than in patients with comparable ventricular dysfunction in the absence of detectable MR.(ABSTRACT TRUNCATED AT 250 WORDS)
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405
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Konstam MA, Cohen SR, Salem DN, Das D, Aronovitz MJ, Brockway BA. Effect of amrinone on right ventricular function: predominance of afterload reduction. Circulation 1986; 74:359-66. [PMID: 3731426 DOI: 10.1161/01.cir.74.2.359] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Although the bipyridine agent amrinone is reported to have a positive inotropic effect on the left ventricle, the effect of this drug on right ventricular contractility in the clinical setting is unknown. We studied the effect of short-term intravenous administration of amrinone on right ventricular systolic function in nine patients with severe congestive heart failure and, using radionuclide ventriculography, examined the right ventricular end-systolic pressure-volume relationship to determine whether reduced right ventricular afterload or increased contractility predominantly accounted for the observed improvement in right ventricular systolic function. In each patient the right ventricular end-systolic pressure-volume relationship was derived with use of varying doses of nitroprusside. After nitroprusside was stopped, intravenous amrinone (3 mg/kg) caused decreases from baseline in pulmonary arterial end-systolic pressure in eight of nine patients (23 +/- 11% [overall mean +/- SE], p less than .05), and in pulmonary vascular resistance in all patients (38 +/- 6%, p less than .001). Right ventricular end-systolic volume decreased (23 +/- 8%, p less than .01) and right ventricular ejection fraction increased (31 +/- 10%, p = .01). The amrinone-induced decrease in right ventricular end-systolic volume was compared with that predicted for right ventricular afterload reduction alone based on the effect of amrinone on pulmonary arterial end-systolic pressure and the pressure-volume relationship observed during infusion of nitroprusside.(ABSTRACT TRUNCATED AT 250 WORDS)
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406
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Konstam MA, Cohen SR, Weiland DS, Martin TT, Das D, Isner JM, Salem DN. Relative contribution of inotropic and vasodilator effects to amrinone-induced hemodynamic improvement in congestive heart failure. Am J Cardiol 1986; 57:242-8. [PMID: 3004184 DOI: 10.1016/0002-9149(86)90899-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The relative contribution of inotropic and vasodilator effect to amrinone-induced hemodynamic improvement in congestive heart failure (CHF) is unknown. In 9 patients with CHF, the effects of amrinone and nitroprusside on hemodynamic and radionuclide measurements were compared to determine whether reduced afterload accounts for the amrinone-induced decrease in left ventricular end-systolic volume. In each patient, the end-systolic pressure-volume relation was derived using nitroprusside. After terminating nitroprusside treatment, intravenous amrinone (3 mg/kg) caused end-systolic volume to decrease from 148 +/- 32 ml/m2 (mean +/- standard deviation) to 133 +/- 32 ml/m2 (p less than 0.05), causing an increase in cardiac index from 1.9 +/- 0.8 to 2.7 +/- 0.8 liters/min/m2 (p less than 0.001). Arterial end-systolic pressure decreased in all patients during amrinone administration, from 96 +/- 22 to 84 +/- 19 mm Hg (p less than 0.005), as did systemic vascular resistance. Nitroprusside doses needed to match the decrease in LV end-systolic volume induced by amrinone caused significantly greater decreases in arterial end-systolic pressure than did amrinone (p less than 0.01). The amrinone-induced decrease in end-systolic volume exceeded that predicted for a pure vasodilator based on arterial end-systolic pressure and the nitroprusside-derived pressure-volume relation in 6 patients. In 3 patients, the decrease in end-systolic volume did not exceed that expected for a pure vasodilator. In conclusion, after amrinone treatment, afterload reduction occurs in all patients with severe CHF and is the sole effect in some.(ABSTRACT TRUNCATED AT 250 WORDS)
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407
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Konstam MA, Cohen SR, Salem DN, Conlon TP, Isner JM, Das D, Zile MR, Levine HJ, Kahn PC. Comparison of left and right ventricular end-systolic pressure-volume relations in congestive heart failure. J Am Coll Cardiol 1985; 5:1326-34. [PMID: 3923077 DOI: 10.1016/s0735-1097(85)80344-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A hemodynamic-radionuclide study was performed to compare the relations between end-systolic pressure and volume in the left and right ventricles in 10 patients with biventricular failure, and to correlate the end-systolic pressure-volume slope with baseline variables of systolic function. During nitroprusside or nitroglycerin infusion, or a combination of both, linear relations were found between end-systolic pressure and volume for both ventricles. In 9 of 10 patients, the end-systolic pressure-volume slope was greater for the left ventricle (mean +/- SD 1.12 +/- 0.36 mm Hg X m2/ml) than for the right ventricle (0.46 +/- 0.27 mm Hg X m2/ml) (p less than 0.001). In all 10 patients, the volume-axis intercept of the pressure-volume relation was greater for the left ventricle (82 +/- 66 ml/m2) than for the right ventricle (2 +/- 30 ml/m2) (p less than 0.005). Right ventricular pressure-volume slope correlated weakly with baseline right ventricular ejection fraction (r = 0.69, p less than 0.05), strongly with the baseline right ventricular end-systolic pressure-volume ratio (r = 0.89) and inversely with baseline right ventricular end-systolic volume (r = -0.86). In conclusion, 1) in patients with severe biventricular failure, changes in systolic pressure influence end-systolic volume more strongly in the right than in the left ventricle. 2) For the right ventricle, the slope of the end-systolic pressure-volume relation is directly related to rest indexes of systolic function. 3) The greater the end-systolic volume at rest, the greater the predicted improvement in right ventricular emptying for any vasodilator-induced reduction in pulmonary artery end-systolic pressure.
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408
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Dash RJ, Kudiyar RP, Katariya RN, Das D, Banerjee AK. Medullary carcinoma of thyroid presenting as ectopic Cushing's syndrome. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1984; 32:1073-5. [PMID: 6526804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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409
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Pal JC, De SR, Das D. The pattern of acute intestinal obstruction in a peripheral district of eastern India. Int Surg 1982; 67:41-3. [PMID: 7096001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
This is a review of 146 patients operated upon over a period of five years, for 150 episodes of mechanical intestinal obstruction, in a developing country in the tropics. The pattern of intestinal obstructions reveals that external hernia accounts for the largest number of cases followed by volvulus which today still forms the second largest group. Operative mortality was 28%. The major adverse factors were gangrenous bowel and large bowel obstruction. The highest mortality rate (about 41.3%) was found in volvulus.
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410
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Behera SK, Satpathy KN, Patnaik BK, Panda C, Das D. Serum copper in sickle cell disease. Indian Pediatr 1981; 18:395-9. [PMID: 7287168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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411
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Samal R, Nayak M, Das D, Suryanarayan G. Polymerization of acrylonitrile. Kinetics of the reaction initiated by the vanadium(V)/thioglycollic acid redox system. Eur Polym J 1981. [DOI: 10.1016/0014-3057(81)90228-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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412
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Behera SK, Mohapatra SS, Kar S, Das D, Panda C. Incidence and mortality of hospitalized diarrhoea cases. Part III. Indian Pediatr 1980; 17:607-12. [PMID: 7216411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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413
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Abstract
Although hiccups may increase vagal discharges by modulating changes in respiratory stretch receptors or atrial filling, it is more likely that a hiccup-induced Valsalva maneuver was responsible for abolishing ventricular bigeminy in our patient. This would explain the delay that was shown on the ECG between the occurrence of the hiccup artifacts and the termination of the extrasystoles. The patient's critical condition prevented our determining the effect of altering parasympathetic activity, but our observations led us to believe that the relationship between the occurrence of hiccups and the disappearance of ventricular extrasystoles was more than coincidental.
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414
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Pal JC, Das D. Strangulated intestinal obstruction. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 1980; 74:109-111. [PMID: 7410866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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415
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Behera SK, Mohapatra SS, Kar S, Das D, Panda C. Bacteriological study of diarrhoea in infancy and childhood (part I). Indian Pediatr 1979; 16:421-7. [PMID: 389801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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416
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Behera SK, Mohapatra SS, Kar S, Das D, Panda C. Clinical profile of E. coli diarrhoea in hospitalised children (Part II). Indian Pediatr 1979; 16:249-54. [PMID: 378827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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417
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Arora RB, Das D, Kapoor SC, Sharma RC. Effect of some fractions of Commiphora mukul on various serum lipid levels in hypercholesterolemic chicks and their effectiveness in myocardial infarction in rats. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 1973; 11:166-8. [PMID: 4782614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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418
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Biswas G, Gupta P, Das D. Wisdom teeth - A major problem in young generation, study on the basis of types and associated complications. JOURNAL OF COLLEGE OF MEDICAL SCIENCES-NEPAL 1970. [DOI: 10.3126/jcmsn.v6i3.4071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to describe the characteristics and types of the impacted mandibular third molar at the highest risk for pain and pericoronitis using clinical and radiographic analysis. A total of 239 volunteers, including 147 (61.5 %) male and 92 (38.5%) female patients presenting with acute pericoronitis, participated in the study. The mean age of the participants was 28 years (range 16-40 years). The analysis of type, angulations and eruption level of the mandibular third molar were achieved by using I.O.P.A. X-ray and in few cases, lateral oblique of mandible. While mesioangular impaction was the most frequent angulation (44.4%), horizontal impaction was quite less (11%). Vertical impaction (27.6%) was slightly higher than distoangular impaction (15.9%) and aberrant (0.8 %). Key words: Impacted third molar; pericoronitis; types of impaction DOI: 10.3126/jcmsn.v6i3.4071Journal of College of Medical Sciences-Nepal, 2010, Vol. 6, No. 3 pp.24-28
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