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Tumori. 1996 Nov-Dec;82(6):576-8.
Hydroxyurea did not enhance the clinical response to vinblastine in patients with anthracycline-resistant metastatic breast cancer.

Huan SD, Yau JC, Tomiak E, Goel R, Cripps C, Gertler SZ, Prosser IA, Stewart DJ.

Division of Medical Oncology, Ottawa Regional Cancer Centre, Ontario, Canada.

BACKGROUND: Vinblastine is commonly used in metastatic breast cancer after anthracycline failure. The response rate to vinblastine is approximately 20%, with short duration of response. In vitro studies have shown that the addition of hydroxyurea resulted in increased accumulation of vinblastine in tumor cells and in loss of double minutes. We evaluated the combination of vinblastine and hydroxyurea in patients with anthracycline-resistant metastatic breast cancer. PATIENTS AND METHODS: Fourteen assessable patients with metastatic breast cancer were entered in the study. All patients had progressed on anthracyclines or progressed within 8 months of stopping anthracyclines. Patients received hydroxyurea (500 mg orally) every Monday, Wednesday and Friday starting one week before the first course of chemotherapy and continuing throughout treatment until disease progression. Vinblastine (6 mg/m2) was given intravenously every 21 days, RESULTS: The median number of courses for vinblastine was 3.5 (range, 1-6). Three patients had partial responses in soft tissue metastases (21%). Four patients had stable disease. Four patients had > grade 2 neutropenia, and 1 patient had grade 4 thrombocytopenia. There were 2 cases of grade 3 constipation, 2 of grade 3 nausea, and 1 each of grade 2 neuropathy and myalgia. There was no treatment-related mortality. CONCLUSIONS: Low-dose hydroxyurea in combination with vinblastine has a 21% response rate in metastatic breast cancer after anthracycline failure. Toxicity was mild and generally reversible. At the adopted dose schedule of hydroxyurea, the antitumor activity of vinblastine in anthracycline-resistant metastatic breast cancer di



Ann Emerg Med. 1991 Jan;20(1):45-50.
Clinical features of misdiagnosed appendicitis in children.

Rothrock SG, Skeoch G, Rush JJ, Johnson NE.

Department of Emergency Medicine, Loma Linda University Medical Center, California 92350.

STUDY OBJECTIVE: To compare clinical features of children with misdiagnosed appendicitis with those of children with appendicitis initially diagnosed correctly. DESIGN: Retrospective review of hospital, emergency department, and clinic records. SETTING: University medical center with annual ED census of 40,000 patients. PARTICIPANTS: Children less than 13 years old admitted between May 1, 1979, and April 30, 1989, with a discharge diagnosis of appendicitis. MEASUREMENTS: Records were reviewed for historical, physical examination, laboratory, and pathologic features for all patients on their initial presentation to a physician and on final presentation during which the correct diagnosis was made. Using chi 2 analysis and Student's test, clinical features of misdiagnosed patients and patients diagnosed correctly were compared. RESULTS: One hundred eighty-one cases were identified with 50 initially misdiagnosed. On initial presentation, misdiagnosed patients were younger and more likely to have vomiting before pain onset, constipation, diarrhea, dysuria, and signs and symptoms of upper respiratory infections. Misdiagnosed cases were less likely to have right lower quadrant tenderness and documentation of bowel sounds, peritoneal signs, and rectal examinations. On final presentation, misdiagnosed patients were more likely to have pain duration of more than two days, temperature of more than 38.3 C, and to appear lethargic and irritable (P less than .05 for all measurements). CONCLUSION: Clinical features of children with misdiagnosed appendicitis differ from those of children with appendicitis initially diagnosed correctly.

Laxative online source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1984727&dopt=Abstract constipation laxative colon cleansing



Eur J Epidemiol. 1997 Jan;13(1):55-9.
Screening for coeliac disease: the meaning of low titers of anti-gliadin antibodies (AGA) in non-coeliac children.

Bonamico M, Ballati G, Mariani P, Latini M, Triglione P, Rana I, Porro E, Mesturino MA, Criscione S.

First Pediatric Clinic, University La Sapienza, Rome, Italy.

Coeliac disease is diagnosed by means of jejunal biopsy, an invasive procedure. Anti-gliadin antibodies (AGA) have therefore been used in the first screening of the disease. On the other hand, low titers of AGA are widely detected also in normal subjects. In order to investigate if low levels of AGA could be correlated with laboratory and clinical data, we performed a study on 167 subjects with various illnesses, such as recurrent abdominal pain, failure to thrive, short stature, diarrhoea or constipation, cow-milk protein intolerance and/or food allergy, recurrent vomiting or previous gastroenteritis, all non coeliac conditions which have been associated with AGA presence. Seventy coeliac children, all biopsied, were selected as a control group. Among the 167 cases we found 60 subjects positive for AGA (35.9%), a high proportion as compared with the general population. Only 33/167 patients, all IgG and IgA AGA positive, fulfil our laboratory and clinical criteria to perform a 'confirming' biopsy. For the 134 residual cases (14 IgA, 13 only IgG AGA positive, 107 AGA negative) a diagnosis of coeliac disease has been excluded by clinical criteria (scoring). As a whole, the patients with coeliac disease had significantly higher levels of AGA of both IgG and IgA classes (p < 0.01). On the other hand, no significant difference emerged for all the anamnestic and laboratory parameters considered between AGA+ and AGA- non-coeliac subjects. However, laboratory parameters of IgG-AGA and/or IgA-AGA positive patients were similar to those of coeliac children for ion, Xylose, total IgA count. As no biopsied case showed mucosal atrophy, it is suggested that the presence of even low AGA leve



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