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Biomedical subjects

T Ranzi

Publications and source records attributed to T Ranzi.

At least 19 recordsLinked to original sources
PubMed1990

Mesalazine (5-aminosalicylic acid) suppositories in the treatment of ulcerative proctitis or distal proctosigmoiditis. A randomized controlled trial.

A multicentre double-blind study was conducted to evaluate the efficacy and tolerability of 1 g or 1.5 g mesalazine daily compared with placebo in 94 patients with mild to moderate distal proctosigmoiditis (less than 20 cm). The study end point was the determination of clinical, endoscopic, and histologic remission rates at 4 weeks. Eleven patients, nine receiving placebo and two receiving 1.5 g mesalazine, withdrew during trial, mostly because of worsening of symptoms. At 4 weeks clinical remission was achieved in 7 of 31 (39%) patients with placebo, in 22 of 32 (69%) patients in the 1 g mesalazine group, and 23 of 31 (74%) patients in the 1.5 g mesalazine group. No serious clinical or biochemical side effect of treatment was reported. Mesalazine suppositories are safe, well tolerated, and very effective in patients with active distal proctosigmoiditis: 500 mg twice daily appears a suitable dose regimen.

Adult↗
PubMed1989

Giant fibrovascular polyp of the oesophagus: report of a case and effects on oesophageal function.

A 40 year old man with dysphagia and a giant fibrovascular polyp of the oesophagus is reported. The patient was followed for two years before removal of the polyp. During this period the tumour markedly increased in size and the oesophagus reached a maximum diameter of 5.9 cm. In presence of the polyp the body of the oesophagus had no pressure activity after swallows and a 22 hour intraoesophageal pH record showed pH greater than 7 for 31.4% of the time and never pH less than 4. After excision of the tumour the oesophagus regained normal size and peristalsis. Intraoesophageal pH greater than 7 and less than 4 were recorded for 1.6% and 16.1% of the time respectively. Dysmotility was probably a contributing factor to the genesis of dysphagia induced by the giant fibrovascular polyp. Prolonged alkalinisation of intraoesophageal pH conceivably reflected altered oesophageal clearing of alkaline salivary and/or oesophageal secretions.

Adult↗
PubMed1989

Risk factors for first operation in Crohn's disease.

We studied 267 consecutive Italian patients (146 male, 121 female) with Crohn's disease. Median time from the first symptom to diagnosis at our center was 21 months (range 1-372), whereas median follow-up from the first visit was 38 months (range 1-180). The disease affected the small bowel in 93 (35%) cases, the ileum and colon in 76 (28%), and the colon in 98 (37%). Forty-nine percent of the patients underwent major abdominal surgery for the disease at least once. The cumulative probability of abdominal surgery was 36% and 55%, 60 and 120 months after the onset of symptoms, respectively. Univariate analysis indicated that patients with colon involvement (p less than 0.0001), those with a longer interval between first symptom and diagnosis (p less than 0.0001), and those at an older age at diagnosis (p less than 0.0003) had a significantly greater probability of escaping abdominal surgery. The interval between first symptom and diagnosis, the site of disease, and the age at diagnosis were confirmed as risk factors for surgery, in decreasing order of importance, by multivariate analysis with Cox's proportional hazard model. A prognostic index for first operation based on these variables is proposed.

Adolescent↗
PubMed1986

The effect of dietary guar on serum cholesterol, intestinal transit, and fecal output in man.

In six healthy subjects serum cholesterol was unchanged during a 2-wk period of controlled diet (2750 kcal) followed by a 2-wk period of free diet but showed a 16% decrease (p less than 0.05) during a further 2-wk period of controlled diet to which guar (5.7 g bid) was added. Stool weight, frequency and whole gut transit time did not differ in the diet periods with and without guar. Of guar ingested 82-95% was metabolized in the gut. Mouth to cecum transit of a meal measured by the hydrogen breath test in the same subjects was unaffected by the addition of 5.7 g of guar.

Adult↗
PubMed1985

Clinical, biochemical and histological abnormalities in adult celiac patients on gluten-free diet.

Twenty-six adult patients with histologically confirmed celiac disease on gluten-free diet after apparent disease remission were reexamined at 4-6 months intervals for a mean period of 55.4 months (range 13-137). Eight patients remained clinically well with normal blood tests. Eighteen patients had clinical or biological abnormalities. Eleven patients reported repeated episodes of meteorism and abdominal pain and/or diarrhea which disappeared in 2 after lactose withdrawal. Iron deficiency and macrocytic anemia were sometimes observed in 5 and 4 patients respectively. Altered plasma calcium, phosphorus and alkaline phosphatase and/or bone densitometry findings were detected in 7 patients. Seventeen patients (12 presenting some of the above findings) agreed to a repeat biopsy: 13 of these showed grade II and 4 grade III abnormalities. Although adult celiac patients may show marked improvement during gluten-free diet, minor clinical disturbances and biochemical abnormalities may still be present.

Adult↗
PubMed1984

Radiologic features of the solitary rectal ulcer syndrome.

A radiologic study of 4 biopsy-proven cases of the solitary rectal ulcer (S.R.U.) syndrome was undertaken. The radiologic findings of S.R.U. were rectal stenosis (one with ulcer), polypoid rectal mass, and multiple sub-mucosal defects with shallow ulcers. The S.R.U., which is benign and requires only dietetic treatment, must be differentiated from other more serious entities such as neoplastic and inflammatory bowel disease.

Adolescent↗