Ovulation induction treatment and risk of borderline ovarian tumors.

AIM: Research has suggested an association between the use of ovulation induction drugs and the risk of ovarian cancer. It has also been proposed that there may be pre-cancerous alterations in the ovary which themselves are the cause of infertility. The aim of the present study was to evaluate the relationship between the use of ovulation induction drugs and the appearance of borderline ovarian tumors. MATERIAL AND METHODS: This was a case-control study in which the study group comprised 42 women with a borderline ovarian tumor and the control group comprised 257 women with benign ovarian pathology. RESULTS: No differences were found between the borderline tumor and control groups (14.3% vs. 27.2%, respectively) in terms of infertility history. Nor were there any differences between the groups with respect to the type of drug used, whether clomiphene citrate (9.5% vs. 6.2%, respectively) or gonadotropins (7.1% vs. 10.1%, respectively). Analysis in terms of the number of cycles administered also failed to reveal any differences. The mean number of cycles with clomiphene citrate/gonadotropins was 2.50 +/- 1.00 and 3.00 +/- 2.64 in the borderline tumor group and 2.44 +/- 1.75 and 3.27 +/- 2.25 in the control group. CONCLUSIONS: Our series produced no evidence that ovulation induction treatment predisposes women to the development of borderline ovarian tumors.     

The effect of corrective splinting on flexion contracture of rheumatoid fingers.

This paper reports a matched-pair experimental study to investigate the effect of corrective splinting on flexion contracture of rheumatoid fingers. Twenty-four patients with rheumatoid arthritis and finger flexion contracture participated in the study. After a 6-week baseline measurement of hand function-including measurement of grip strength and range of motion and administration of the Jebsen Hand Function Test-the patients were randomly placed into two groups. Patients in the first group were given dynamic (Capener) splints, and those in the second group were given static (belly gutter) splints. Hand function was re-assessed 6 weeks after the splinting program. Results indicated significant improvement in both groups, not only in the correction of the finger flexion contracture (p < 0.0005) but also in grip strength (p = 0.001) and hand function (p < 0.0005). Patients with dynamic finger extension splints did not differ from those with static splints in extension gains, but they did have better flexion than patients with static splints. Both types of splints can be recommended for flexion contracture of rheumatoid fingers, depending on patients' preferences and comfort.     

Bronchial Plasma Exudation After Adenosine Monophosphate or Methacholine Challenge

Nonspecific hyperresponsiveness to adenosine monophosphate is better related to airway inflammation than methacholine. Adenosine induces mast cells and other cells to release inflammatory mediators that produce bronchoconstriction and perhaps other inflammatory effects, such as plasma exudation, which have not been well studied. We compared the plasma exudation effect, as measured in induced sputum, between adenosine and methacholine challenge in healthy and asthmatic subjects. In a cross-over design, 42 subjects were randomly challenged with adenosine or methacholine. After recovery, induced sputum was collected on 2 separate days, 48 to 72 hours apart. In the control group, an additional challenge with saline was performed. Differential cell counts and albumin and alpha2-macroglobulin levels were determined. The sputum volume obtained was sufficient to measure proteins in only 34 subjects: 10 healthy individuals and 24 mild asthmatics. There was a significant difference between adenosine and methacholine in sputum albumin (mean differences: 68[73.4] μg/L in controls, p = 0.039 and 48.0[162.9] μg/L in asthmatics) and cell counts, but only a tendency in alpha2-macroglobulin. PC20 adenosine was better related to eosinophil counts than methacholine (r = -0.44, p = 0.014). Albumin or alpha2-macroglubulin levels were not significantly correlated with baseline FEV₁, PC20, or eosinophil counts. Adenosine, but not methacholine challenge, produces a mild airway plasma exudation that does not seem to be relevant to bronchoconstriction. However, this could be relevant, to some supernatant measurements after adenosine challenge.     

International conference calendar 1992

International conference calendar 1992     

Effect of Esophageal Acid Exposure on Upper Esophageal Sphincter Pressure

To investigate the relationship between gastroesophageal reflux and upper esophageal sphincter (UES) pressure, total esophageal acid exposure times on 23-hour ambulatory pH monitoring were compared with UES manometric results in 98 subjects, 85 with laryngopharyngeal symptoms and 13 asymptomatic controls. There was no correlation of acid exposure time with tonic UES pressure nor with any UES wet swallow parameter. The response of the UES to acute upper esophageal acid infusion was assessed in another 13 patients by a sleeve catheter. There was no significant increase of tonic sleeve UES pressure during acid infusion. In contrast to most previous reports, our results indicate that esophageal acid exposure, whether acute or chronic, has little influence on the UES.