Biomedical subjects

A A Shihata

Publications and source records attributed to A A Shihata.

6 recordsLinked to original sources

PubMed1998

The FemCap: a new contraceptive choice.

OBJECTIVE: To develop a female barrier to, first, prevent pregnancy and, second, protect against sexually transmitted diseases. DESIGN: The contraceptive is made of inert, soft material and is an anatomical design that utilizes the physiology of the vagina. It incorporates the use of microbicidal spermicide to kill sexually transmitted disease organisms. RESULTS: FemCap has been proven in clinical trials to be safe, and has no systemic or local side-effects, and does not increase the risk of urinary tract infections. Effectiveness in pregnancy prevention in 86.5% in typical use and 98% if used properly with emergency contraceptives as back-up. FemCap is highly acceptable to women and to their partners. CONCLUSIONS: A new method of birth control has arrived that is safe, effective, highly acceptable and may protect against sexually transmitted diseases of the upper female genital tract.

Clinical Trials as Topic↗

PubMed1995

Norplant.

Explore the source record for details and available documents.

Adolescent↗

PubMed1995

Innovative technique for Norplant implants removal.

This study evaluates a unique and completely different approach from the original removal technique. The main objective of this technique is to facilitate removal of widely-spaced, deeply-positioned, and misplaced Norplant capsules. A local anesthetic is injected deep and perpendicular to the long axis of the Norplant rods. The hypodermic needle is left in place underneath the six silicone rods for the entire removal procedure. One or two 3-4mm vertical incisions were made between the capsules over the needle. The Norplant rods were dissected free from the fibrous tissue and the skin with a #11 blade. A curved mosquito forceps was inserted between the skin and the Norplant rod, to hook and deliver the capsule through the incision, from where it can be easily removed. This method resulted in far less time, effort, and skill from the health care provider, no damage to the capsules, and much less trauma to the clients.

Anesthetics, Local↗

PubMed1992

Acceptability of a new intravaginal barrier contraceptive device (Femcap).

A comprehensive questionnaire to assess acceptability was sent to 106 participants (and their partners) in a study on the safety and effectiveness of the Femcap. Participants were asked to rate their satisfaction with various aspects of the method, and were also asked about complaints such as vaginal infections, urinary tract infections, or other irritation. Eighty-one percent of the study sample either returned the mailed questionnaires or completed telephone interviews. Results were encouraging in that none of the study subjects or their partners reported any discomfort, trauma, or interference in sexual spontaneity with the cap. Vaginal irritation and infections were infrequently reported. The feature best liked by most participants was the absence of hormones associated with the method; the feature least liked was removal of the device. The Femcap may be an acceptable alternative to currently available barrier contraceptive devices.

Adolescent↗

PubMed1991

New female intravaginal barrier contraceptive device. Preliminary clinical trial.

The Fem Cap, a silicone rubber cervical cap, is shaped like a sailor's hat. While its dome covers the cervix, its rim fits snugly into the vaginal fornices, and its brim adheres and conforms to the vaginal walls. A spermicidal material is applied to the cap, then it is positioned over the cervix by hand or with a special applicator. The device is removed by hand up to 48 hours after insertion, but no sooner than eight hours after intercourse. Women chosen for the trial had contraindications to or were dissatisfied with the currently available contraceptive methods. Each woman was fitted with a cap of suitable size and instructed in its use. She was then asked to note any side effects and the dates of her menses in a diary. One-hundred-twenty-one women were enrolled in the study. Five became pregnant. Of those, two reported dislodgment of the cap during intercourse; the other three admitted to non-use of the cap on several occasions. This device has proven so far to be safe, effective and acceptable to women and men. It has several advantages over the currently available barrier contraceptive devices. The silicone rubber material from which it is made is non-allergenic, durable and easy to clean. Its design fits the anatomy and accommodates physiological changes. The Fem Cap is easy to insert and remove; an applicator facilitates insertion for some women. Instruction for use of the device requires short time from the health care provider.

Adolescent↗

PubMed1983

Ureteric stone extraction by a new double-balloon catheter: an experimental study.

An atraumatic double-ballooned catheter was designed to extract endoscopically ureteral calculi of relatively large size (1 to 1.5 cm.) arrested at any level of the ureter. This reduces the need for ureterolithotomy, eliminates the problems of stone basket manipulations, and reduces the need for prolonged waiting for spontaneous migration of stones.

Animals↗