Foreign body removal using a "homemade" loop basket.
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Biomedical subjects
Publications and source records attributed to M P Sharma.
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Phytochemical studies on the roots of Hemidesmus indicus resulted in the isolation of six new pentacyclic triterpenes including two oleanenes identified as olean-12-en-21 beta-yl acetate, and olean-12-en-3 alpha-yl acetate, three ursenes characterized as 16(17)-seco-urs-12,20(30)-dien-18 alpha H-3 beta-yl actetate, urs-20(30)-en-18 beta H-3 beta-yl acetate and 16(17)-seco-urs-12,20(30) dien-18-alpha H-3 beta-ol and a lupene formulated us lup-1,12-dien-3-on-21-ol including a known compound, beta-amyrin acetate, on the basis of spectroscopic techniques and chemical means.
The management of pyogenic liver abscess differs radically from that of amebic liver abscess. Medical management is the cornerstone of therapy in amebic liver abscess while early intervention in the form of surgical therapy or catheter drainage and parenteral antibiotics is the rule in pyogenic liver abscess. The prognosis of amebic abscess is much better than that of pyogenic abscess and usually a quick response to therapy is seen in amebic abscess.
BACKGROUND & OBJECTIVES: The density of Helicobacter pylori in the gastric mucosa has prognostic significance, higher densities being associated with greater chances of development of duodenal ulcer and chronic atrophic gastritis as well as poor eradication by drug therapy. The aim of this study was to assess if 14C-urea breath test counts reflect bacterial density. METHODS: Sixty patients with endoscopically proven active duodenal ulcer and H. pylori positivity as determined by rapid urease test and gastric histology were studied. Gastric antral and corpus biopsies were graded for chronic gastritis, activity (presence of polymorphonuclear cells) and bacterial density (at surface and in pits) based on the Sydney system on a scale of four grades ranging from 0 to 3 (absent, mild, moderate and severe). 14C urea breath test was performed in all the patients. RESULTS: Chronic gastritis as well as activity was more prevalent as well as severe in the antrum as compared to the corpus. H. pylori density was also significantly more in the antrum as compared to the corpus both at the surface as well as in the pits. H. pylori density correlated with the grade of chronic gastritis and activity both in the antrum and in the corpus. Urea breath test counts ranged from 331.3 cpm (counts per minute) to 8770.5 cpm and these did not correlate with histological H. pylori density at any of the sites. INTERPRETATION & CONCLUSIONS: 14C urea breath test does not reflect H. pylori density on histology in patients of duodenal ulcer disease.
Eucalyptus tereticornis was grown in a green house in a low phosphorus (0.67 ppm Olsen's P) soil (Typic Haplustalf) inoculated with mixed indigenous arbuscular mycorrhizal (AM) fungi. Soil was amended to achieve P levels of 10, 20, 25, 30 and 40 ppm to evaluate the growth response and dependence of E. tereticornis to inoculation with AM fungi. A positive response to mycorrhizal inoculation was evident at the first two levels of soil P, i.e., at 0.67 and 10 ppm but not at the higher levels of soil P. Dry matter yield of inoculated plants beyond 20 ppm soil P was similar or even less compared to their uninoculated counterparts. Inoculated plants produced maximum dry matter (root and shoot) at 10 ppm soil P, whereas uninoculated plants did not produce until the level reached 20 ppm. The percentage root length colonized by AM fungi decreased from 31% to 3% as the concentration of P increased beyond 10 ppm soil P. Higher levels of soil P depressed the AM colonization significantly. Inoculated plants had higher shoot P and N contents compared to their uninoculated counterparts at all levels of soil P. However, at the first two lower levels of soil P, inoculated plants showed significantly higher shoot P and N contents over their respective uninoculated counterparts. The increasing shoot P accumulation beyond 10 ppm did not enhance dry matter yields. Inoculated plants had lower values of phosphorus utilization efficiency (PUE) and nitrogen utilization efficiency (NUE) at all levels of soil P except at the unamended level (0.67 ppm) where the inoculated plants showed higher values of NUE compared to uninoculated control plants. Taking dry matter yield into consideration, Eucalyptus plants were found to be highly dependent on 10 ppm of soil P for maximum dry matter production. Any further amendment of P to soil was not beneficial neither for AM symbiosis nor plant growth.
Fifty-four patients with focal liver lesions were evaluated with colour Doppler flow imaging (CDFI) and CT to assess whether CDFI could be used to differentiate various types of lesions based on the flow pattern in terms of peritumoral and intratumoral blood flow. Peritumoral flow was found to be of no significance in the differential diagnosis of various liver lesions. Intratumoral flow was graded into mild, moderate or marked depending on the relative number of blood vessels demonstrated within the lesion. Marked intratumoral flow on CDFI was seen in 12.5% of primary hepatic malignancies and in infantile haemangioendothelioma, while a moderate flow pattern was seen in 56.2% of primary hepatic malignancies and in 18.7% of metastases. Mild flow was seen in 33.3% of primary malignancies; 18.7% of metastases; and 16.7% of haemangiomas. No intratumoral flow was seen in 100% of inflammatory lesions; 83.3% of haemangiomas; 62.5% of metastases; and only one hepatocellular carcinoma (5.6%). It was therefore concluded that the presence or absence of flow on CDFI is not a reliable feature for differential diagnosis of focal liver lesions when it is used alone. The flow pattern as assessed on CDFI may point to the nature of the lesion and, when used along with other morphological imaging features, can assist in diagnosis or in narrowing the list of different diagnoses in a particular clinical situation.
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Ganulocytic sarcoma (Chloroma) is a tumour of rare variety usually in assocoiation with granulocytic leukemia. It is related to soft tissue with extramedullay infiltration. We present a case of granulocytic sarcoma of humerus which preceded the initial clinical manifestation of acute myeloid leukemia in a young patient which ultimately proved to be FABM2 variety. Though many tissues are affected by this tumour but the most favoured site is the bone.
BACKGROUND: The efficacy of anti-Helicobacter pylori treatment and cytoprotective drugs in H. pylori-positive and -negative non-ulcer dyspepsia (NUD), respectively, is debatable. METHODS: In a randomized study, the efficacy of anti-H. pylori treatment versus sucralphate was tested in patients with NUD. One hundred and twelve patients with NUD, 62 positive and 50 negative for H. pylori were studied. Of 62 patients positive for H. pylori, 32 were treated with triple therapy (colloidal bismuth subcitrate, tetracycline and metronidazole) for 2 weeks and the remaining 30 were treated with sucralphate (1 g, q.i.d.) for 4 weeks. Of 50 patients negative for H. pylori, 25 each were treated with either sucralphate (1 g, q.i.d.) or ranitidine (150 mg, b.d.) for 4 weeks. RESULTS: In patients with NUD and H. pylori infection, triple therapy eradicated H. pylori in 88% and was superior to sucralphate in producing symptom relief (81 vs 33%, P = 0.0003) and histological improvement in gastritis (73 vs 30%, P = 0.003). In the H. pylori-negative group, sucralphate was superior to ranitidine with regard to symptom relief (68 vs 36%, P = 0.04) and improvement in gastritis (44 vs 12%, P = 0.09). The symptomatic improvement persisted until 12 weeks after the start of treatment in triple therapy group only. CONCLUSIONS: In patients with NUD associated with H. pylori, triple therapy was better than sucralphate in terms of symptomatic and histological improvement. However, sucralphate was superior to ranitidine in providing symptom relief in patients with H. pylori-negative NUD.
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BACKGROUND: A number of triple drug regimens using proton pump inhibitors and two antibiotics have been evaluated in the West and reported to achieve Helicobacter pylori eradication rates of over 90%. In developing countries however, these combinations have neither been well evaluated, nor the optimum treatment for H. pylori infection well defined. AIM: To compare the combination of a proton pump inhibitor with a nitroimidazole and another antibiotic in eradicating H. pylori infection and healing duodenal ulcer. METHODS: Sixty consecutive patients with active duodenal ulcer who were positive for H. pylori (by rapid urease test and 14C-urea breath test) were randomized into three treatments groups: (1) LAS (n=21): lansoprazole 30 mg o.m., amoxycillin 500 mg q.d.s. and secnidazole 2 g on alternate days for 2 weeks; (2) LCS (n=18): lansoprazole 30 mg o.m., clarithromycin 500 mg b.d. and secnidazole 2 g on alternate days for 1 week; (3) LPS (n=21): lansoprazole 30 mg o.m., pefloxacin 400 mg o.m. and secnidazole 2 g on alternate days for 2 weeks. Urease and breath tests were performed at 0, 6 and 12 weeks to check for H. pylori eradication. RESULTS: Intention-to-treat eradication rates were as follows: LAS 86%, LCS 83%, LPS 71%; the overall ulcer healing rate was 90% at 6 weeks. CONCLUSIONS: High H. pylori eradication rates were achieved using the amoxycillin- and clarithromycin-based therapies. Fewer side-effects, better compliance and low cost favoured the amoxycillin-based therapy.
BACKGROUND: The C-14 urea breath test (UBT) is the most specific noninvasive test to detect Helicobacter pylori, with reported sensitivity and specificity rates of 90% and 95%, respectively. This test has not been evaluated for eradication after a therapeutic trial. The goal of this study was to assess the accuracy of C-14 UBT in the diagnosis and eradication of H. pylori infection in patients with duodenal ulcer who were treated with a triple drug regimen. METHODS: Sixty patients with active duodenal ulcers who tested positive for the rapid urease test had a C-14 UBT at 0 weeks (at enrollment) and at 6 and 12 weeks using 5 microCi (185 KBq) of C-14 urea. A single breath sample was collected at 15 minutes for UBT. H. pylori was eradicated using lansoprazole and two antibiotics. RESULTS: Receiver operator characteristic curves showed that, using a value of 400 counts per minute (cpm), UBT had a sensitivity rate of 91%, specificity rate of 93%, positive predictive value of 77%, and a negative predictive value of 97% in the prediction of H. pylori eradication. The mean + 3 SD of H. pylori-negative patients was 380.1 cpm; at this cutoff value, the sensitivity and specificity rates were 91.3% and 92.8%, respectively. CONCLUSION: The C-14 UBT was an accurate, rapid, and easily administered test to diagnose initial H. pylori infection and to monitor its eradication, thereby obviating the need for repeated endoscopic biopsies.
BACKGROUND/AIMS: Erythropoietin-independent endogenous growth of erythroid colony from bone marrow cells has been shown in many patients with Budd Chiari syndrome in earlier studies. In another report, increased megakaryocyte colony growth has also been documented in this disease. However, defects in granulocyte-macrophage cell lines in Budd Chiari syndrome have yet to be reported in the literature. METHODS: Both in vitro erythroid and granulocyte-macrophage colony cultures from peripheral blood mononuclear cells with and without erythropoietin or granulocyte-macrophage colony stimulating factor, respectively, were studied in 32 patients with Budd Chiari syndrome, along with 20 normal healthy controls and ten patient controls with portal hypertension (five patients each with noncirrhotic portal fibrosis and liver cirrhosis). In 18 patients the occlusion was only in the inferior vena cava, in five patients only in hepatic veins, and in nine patients both inferior vena cava and hepatic veins were blocked. RESULT: Endogenous erythroid or granulocyte-macrophage colony growth was not observed in any of the normal healthy controls or in patient controls with portal hypertension. However, 22 of the 32 (68.8%) patients showed endogenous erythroid colony growth. Moreover, four of them also showed endogenous growth of granulocyte-macrophage colony, not previously reported in Budd Chiari syndrome. CONCLUSION: It may be inferred that stem cell defects affecting all three hemopoietic cell lines (erythroid, megakaryocyte and granulocyte-macrophage) occur in Budd Chiari syndrome, which may be the primary defect responsible for the pro-thrombotic state causing venous thrombosis in them.
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OBJECTIVES: The purpose of the present study was to determine the profile of HLA class I antigens, antinuclear antibodies (ANA), and antineutrophil cytoplasmic antibodies (ANCA) in ulcerative colitis (UC) patients from Northern India. METHODS: The study consisted of 100 UC patients with or without extraintestinal manifestations. Data on HLA, ANA, and ANCA were analyzed with respect to age at onset, sex, duration of disease, and occurrence of extraintestinal manifestations, and data were correlated with those of healthy controls from the same population. RESULTS: The most common extraintestinal manifestations in order of occurrence were arthralgia (53.8%), ocular lesions (18%), sacroiliitis (12.7%), hepatobiliary (7.7%), cutaneous (5%), and vascular (2.6%). ANA and ANCA were positive in only 3% of cases. Of the HLA class I antigens, HLA-A19 was significantly increased in UC patients compared with controls (63.4% vs. 33.5%, p < 0.001, RR = 3.4), particularly its subtype HLA-A33 (20.7% vs. 4%, p < 0.001, RR = 6.3). There was no deviation in the frequency of HLA-B locus antigens, whereas HLA-Cw6 was increased significantly in patients compared with controls (14.6% vs. 3.5%, p < 0.001, RR = 4.4). CONCLUSIONS: The occurrence of extraintestinal manifestations in Indian patients with UC is similar to that reported elsewhere, although ANA and ANCA positivity is lower. HLA studies revealed that A19(33) and Cw6 are associated with UC.
OBJECTIVES: Lansoprazole, a newer benzimidazole, is more potent than omeprazole in its anti-Helicobacter pylori effect in vitro. The present study was aimed at assessing its efficacy in a developing country. METHODS: Fifty patients were randomized to receive either lansoprazole or omeprazole, with norfloxacin for 2 wk; the ulcer healing rates, H. pylori eradication rates, and recurrence rates were compared over a 6-month period. RESULTS: Both lansoprazole and omeprazole were equally effective in inducing healing of ulcer (96.1 vs 95.5%, p > 0.05) and eradicating H. pylori (76.9 vs 63.9%, p > 0.05), with very low recurrence rates over a 6-month follow-up period. CONCLUSIONS: Either lansoprazole or omeprazole combined with norfloxacin is effective in eradicating H. pylori in a high percentage of cases of duodenal ulcer, with little difference between the two proton pump inhibitors.
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Chronic diarrhea is a common clinical problem. To determine the possible causes in North India, we studied prospectively 71 patients with chronic diarrhea of the large bowel type. A definite diagnosis could be established in 70 patients. Ulcerative colitis was found in 18 patients, colorectal malignancies in three, colonic polyps in three, and irritable bowel syndrome in 32. In addition, seven patients with seronegative polyarthritis and chronic diarrhea were found to have chronic inflammation of the colon on histology. Two patients had pseudodiarrhea, and no diagnosis could be established in one patient. The remaining five patients with chronic diarrhea showed histologic evidence of chronic colonic inflammation with predominantly mononuclear cell infiltration of the lamina propria and increased intraepithelial lymphocytes, but results of their radiologic and endoscopic studies were normal. These five patients were classified as having microscopic (lymphocytic) colitis. We conclude that the causes of chronic diarrhea in North India patients are similar to a large extent to those seen in Western populations. Microscopic (lymphocytic) colitis is a definite clinicopathologic entity that should be considered in the differential diagnosis of chronic diarrhea.