Scheduled Intermittent Periods of in vitro Fertilization Treatments

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Abstract
Organization and results of an in vitro fertilization program at the Huddinge University Hospital are given from its beginning in August 1985: 6 months in advance a scheme is scheduled with 2 weeks oper for treatment followed by free intervals of 3-4 weeks. Follicular development is stimulated with clomiphene citrate and hMG, and assessed by analyses of estradiol and LH in serum combined with ultrasound examinations. Following the administration of hCG, eggs are collected by transvesical aspiration guided by ultrasound. The ova are inseminated with about 50,000 motile spermatozoa, and cultured for 48 h. Up to four eggs are transferred transcervically to the uterine cavity. 158 egg pickups have been performed (August 1985 to December 1987) in 106 patients resulting in fourteen intrauterine and two ectopic pregnancies, biochemical pregnancies not counted. This protocol has restricted routine work load allowing these treatments to be part of the clnical routine. It has also allowed the application of research programs and thus optimized limited resources.