J Barbosa

St. John's Hospital, Springfield, Illinois, United States

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Publications (3)6.82 Total impact

  • J Maciel, J Barbosa, A S Leal
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    ABSTRACT: Two hundred and twenty-four patients with histologically-confirmed carcinoma of the oesophagus received palliative Nd-YAG laser therapy for malignant dysphagia between January 1986 and December 1994. The results are appraised in terms of the degree of relief obtained, its relation to the macroscopic type and the size of the tumour, peri-operative complications, duration of hospitalization and survival after treatment. Recannulation of the oesophageal lumen was obtained in 98.2% of the patients, after which 93.7% were able to ingest at least semi-solids. Although the lumen was permeable for a 9.8 mm endoscope, the remainder could only ingest liquids. The only complication was a perforation is six cases (2.7%). After treatment, 14.8% survived more than 1 year and 3.4% more than 2 years. After discussing the role of lasers in the palliative treatment of malignant dysphagia, the authors conclude that it can be considered effective in that it relieves the dysphagia and improves the patients' quality of life.
    European Journal of Surgical Oncology 03/1996; 22(1):69-73. · 2.61 Impact Factor
  • J Barbosa, J Maciel, M Amarante
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    ABSTRACT: The authors performed an echoendoscopic examination of 91 patients who, at a previous endoscopy, had presented extramucosal swellings in the upper digestive tract. On this occasion, the images were suggestive of a leiomyoma in 73 cases, a schwannoma in 3, an ectopic pancreas in 1, and a cyst of the gastric wall in 1. There was an extrinsic compression of the tract by an adjacent organ in three cases and by an adenopathy in two others. In six patients the authors were unable to make an echographic identification of the swellings noted upon endoscopy as they noted no echographic alteration. The echoendoscopic examination was considered normal. Given that most of these patients did not undergo surgery, the authors were only able to obtain a histological examination of surgically removed tissue in 11. The diagnosis was confirmed in eight cases. In one patient in which it proved impossible to pass the endoscope through the stenotic area, the histological examination did not confirm the echography: In two others, classified as leiomyomas, the histology showed leiomyosarcomas.
    Surgical Endoscopy 12/1995; 9(11):1193-6. · 3.43 Impact Factor
  • J Maciel, J Barbosa, A Júnior
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    ABSTRACT: In the majority of cases, conventional techniques for the treatment of villous tumors of the rectum are, if they are to be effective, too aggressive for this usually benign pathology. Our experience with the outpatient laser treatment of 31 patients leads us to conclude that this is a safe and effective technique, which should be attempted before a colectomy or abdominoperineal amputation is indicated.
    Hepato-gastroenterology 03/1994; 41(1):58-60. · 0.77 Impact Factor

Publication Stats

11 Citations
6.82 Total Impact Points

Institutions

  • 1995
    • St. John's Hospital
      Springfield, Illinois, United States