M Menacho

Hospital Universitari Germans Trias i Pujol, Badalona, Catalonia, Spain

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Publications (5)33.73 Total impact

  • Article: Cytomegalovirus infection in patients with inflammatory bowel disease.
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    ABSTRACT: It has been suggested that, in inflammatory bowel disease, cytomegalovirus behaves in the intestine as a nonpathogenic bystander, and even its finding in intestinal mucosa has unclear clinical relevance. We report our experience with a small series of patients with refractory inflammatory bowel disease and cytomegalovirus infection and their clinical outcome. Nine patients with moderate-severe attacks of inflammatory bowel disease did not respond to i.v. prednisone (1 mg/kg/day) for a mean of 24 days. Four of these patients were further treated with i.v. cyclosporine A (4 mg/kg/day). Cytomegalovirus infection was diagnosed in two patients after resection for treatment failure. In the remaining patients, cytomegalovirus infection was diagnosed in endoscopic mucosal biopsies and i.v. ganciclovir was then administered at a dose of 10 mg/kg/day for 2-3 wk. Five of these patients went into clinical remission, allowing corticosteroid and cyclosporine A discontinuation. Follow-up biopsies were performed and in all cases cytomegalovirus could not be detected in the colonic tissue. Two patients needed to be treated with intravenous cyclosporine A after antiviral therapy because of persistence of clinical symptoms despite the elimination of cytomegalovirus infection. Cytomegalovirus infection may play a role in the natural history of refractory inflammatory bowel disease and in some of its complications. The clearance of cytomegalovirus in colonic mucosa may lead some of these patients to remission.
    The American Journal of Gastroenterology 05/1999; 94(4):1053-6. · 7.28 Impact Factor
  • Article: Factors related to the presence of IgA class antineutrophil cytoplasmic antibodies in ulcerative colitis.
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    ABSTRACT: Few studies have assessed the IgA antineutrophil cytoplasmic antibody (ANCA) positivity in ulcerative colitis patients and there is no information about factors related to its synthesis and its status after colectomy. The aims of the study were to assess the serum IgA ANCA prevalence in ulcerative colitis patients, both nonoperated and operated, and to determine the clinical factors related to this positivity. Fifty-four ulcerative colitis patients, 63 ulcerative colitis colectomized patients (32 with Brooke's ileostomy and 31 with ileal pouch anal anastomosis), and 24 controls were studied. Antineutrophil cytoplasmic antibodies were detected by specific indirect immunofluorescent assays. The percentage of IgA ANCA was significantly higher in patients with ileal pouch anal anastomosis (45%) than in patients with Brooke's ileostomy (22%). There were no differences related to the presence of pouchitis in ileal pouch anal anastomosis patients. Patients with nonoperated extensive colitis (47%) had a significantly higher percentage of IgA ANCA than patients with proctitis (19%). Total percentage of ANCA (IgA and/or IgG) tended to be higher in ulcerative colitis and in patients with ileal pouch anal anastomosis than in patients with Brooke's ileostomy. However, in ileal pouch anal anastomosis patients, ANCA positivity was mainly due to exclusive IgA production. A substantial percentage of ulcerative colitis patients, and especially colectomized patients with ileal pouch anal anastomosis, had IgA ANCA, suggesting that ANCA production in ulcerative colitis might be stimulated by an immune reaction in the intestinal mucosa.
    The American Journal of Gastroenterology 05/1998; 93(4):615-8. · 7.28 Impact Factor
  • Article: Spontaneous bacterial peritonitis in patients with cirrhosis undergoing selective intestinal decontamination. A retrospective study of 229 spontaneous bacterial peritonitis episodes.
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    ABSTRACT: Selective intestinal decontamination with norfloxacin is widely used to prevent spontaneous bacterial infections in cirrhosis. The study was performed to compare the spontaneous bacterial peritonitis occurring in patients with and without prophylactic norfloxacin. Two hundred and twenty-nine consecutive episodes of spontaneous bacterial peritonitis, (193 in patients without (Group A) and 36 in patients with norfloxacin prophylaxis (Group B)), were retrospectively analyzed. In 100 episodes (86 and 14, respectively), the responsible organism was isolated in ascitic fluid. Clinical and laboratory data at diagnosis were comparable in both groups. There were marked differences (p < 0.001) between group A and B in the frequency of peritonitis caused by gram-negative (67.4% vs. 14.3%) and gram-positive (30.2% vs. 78.6%) bacteria. There were three polymicrobial episodes. Bacteria resistant to cefotaxime and gram-negative bacilli resistant to quinolones were isolated in ascitic fluid in nine (seven in Group A and two in Group B) and three episodes (all in Group A), respectively. No differences in the course of infection and patient survival were observed between groups. Spontaneous bacterial peritonitis in patients with and without prophylaxis with norfloxacin are not different in clinical features, response to treatment and prognosis. Spontaneous bacterial peritonitis caused by gram-negative organisms resistant to quinolones is extremely uncommon in patients with cirrhosis receiving prophylactic norfloxacin.
    Journal of Hepatology 02/1997; 26(1):88-95. · 9.26 Impact Factor
  • Article: Azathioprine is useful in maintaining long-term remission induced by intravenous cyclosporine in steroid-refractory severe ulcerative colitis.
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    ABSTRACT: Therapeutic regimens with intravenous (i.v.) cyclosporine followed by oral cyclosporine maintenance therapy reduce the need for immediate surgery in steroid-refractory severe ulcerative colitis, but the short-term colectomy rate is still as high as 70%. We report our experience with long-term azathioprine maintenance therapy in a small series of ulcerative colitis patients with i.v. cyclosporine-induced remission. Twelve of thirteen patients with severe ulcerative colitis refractory to i.v. prednisone (1 mg/kg/day for at least 10 days) went into remission after adding i.v. cyclosporine (4 mg/kg/day) and are the subjects of this report. After a discouraging initial experience with oral cyclosporine plus mesalazine as maintenance therapy in the first four patients, we treated the following patients with azathioprine plus mesalazine starting immediately after response to i.v. cyclosporine was obtained. Overall, only 1 of 10 patients treated with azathioprine relapsed after a mean follow-up of 16.3 months (range: 6-48). Moreover, this relapse probably occurred when the drug was still not therapeutically active because, after reinducing remission with oral prednisone, the patient remained symptomless on azathioprine. Steroids could be discontinued in all patients. The relapse rate on maintenance therapy with azathioprine (10%) is a figure considerably lower than that previously reported with oral cyclosporine. This promising experience should be confirmed in randomized controlled trials.
    The American Journal of Gastroenterology 01/1997; 91(12):2498-9. · 7.28 Impact Factor
  • Article: Occlusion of the superior mesenteric artery in a patient with polycythemia vera: resolution with percutaneous transluminal angioplasty.
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    ABSTRACT: The case is reported of a 46-year-old male patient with polycythemia vera (PV) treated with phlebotomy who developed an occlusive thrombosis of the superior mesenteric artery 2 years after the diagnosis. He was successfully managed with percutaneous transluminal angioplasty. The patient did not develop any other thrombotic phenomena. To our knowledge, there are no previous reports on the use of percutaneous transluminal angioplasty in the management of arterial thrombotic complications in PV patients.
    Annals of Hematology 03/1996; 72(2):89-91. · 2.62 Impact Factor