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A Strandell

Publications and source records attributed to A Strandell.

26 records · Page 2Linked to original sources
PubMed1994

Hydrosalpinx reduces in-vitro fertilization/embryo transfer pregnancy rates.

A retrospective study was designed to examine whether the presence of a hydrosalpinx influenced pregnancy outcome following in-vitro fertilization (IVF) treatment in stimulated cycles. A total of 254 women with tubal lesions were included. Patients with one or two hydrosalpinges were compared with patients having other tubal lesions and pregnancy outcome was analysed. Both pregnancy and delivery rates were significantly higher in the patient group without a hydrosalpinx. The results after frozen embryo transfer showed the same tendency. These findings strongly indicate that a permanent hydrosalpinx has a negative influence on implantation, as well as on pregnancy, and suggest that a more active approach against large hydrosalpinges should be undertaken before IVF treatment, in order to improve the pregnancy rates.

Embryo Transfer↗
PubMed1989

Immunity and immunization of children against diphtheria in Sweden.

The level of immunity to diphtheria and the effect of vaccination with different doses of diphtheria toxoid was investigated. The 457 study children, 6, 10 and 16 years of age, had as infants received routine primary vaccination with three doses of diphtheria-tetanus-toxoid or diphtheria-tetanus-pertussis vaccine, and the 16 year-olds also had received a booster dose of tetanus with a small dose of diphtheria at the age of ten. Prior to the study booster, 15% of the 6-year-olds had antitoxin levels against diphtheria less than 0.01 IU/ml, the given minimum level for protection. Of the 10-year-olds, 48% had titres less than 0.01 IU/ml, while the corresponding figure for the 16-year-olds was 24%. After a booster injection of 0.1, 0.25 or 0.5 ml of diphtheria-tetanus vaccine, more than 97% of the children showed titre levels greater than or equal to 0.1 IU/ml, while levels of greater than or equal to 1 IU/ml, indicating titres sufficient for long-term protection, were attained by 23-96%. Systemic reactions were few and moderate. Local reactions were of little clinical significance. In a group of 5-years-olds given diphtheria-tetanus primary vaccinations over wider intervals, only 1.4% had antitoxin titres less than 0.01 IU/ml. The results show a need for serologic monitoring of vaccination programmes.

Adolescent↗
PubMed1987

Swedish experience of two dose vaccination programme aiming at eliminating measles, mumps, and rubella.

In 1982 a two dose regimen was introduced in Sweden for the combined vaccination against measles, mumps, and rubella of children aged 18 months and 12 years. Since 1977 about half of the preschool children were vaccinated against measles annually, and since 1974 about 80% of 12 year old girls were vaccinated against rubella. During the period 1982 to 1985 90-93% of the eligible age cohorts of 18 month old children and 88-91% of the 12 year old children were immunised with the new combined vaccine. A study in 1982 of about 140 18 month old children who were nearly all seronegative before vaccination showed that 96%, 92%, and 99% seroconverted against measles, mumps, and rubella, respectively. A second study was carried out in 1983 of 247 12 year old children, of whom 11% lacked antibodies to measles, 27% to mumps, and 45% to rubella. This showed seroconversion in 82% and 80% against measles and mumps, respectively, and all children seroconverted against rubella. In the latest study in 1985 of 496 12 year olds 9% and 13% were seronegative against measles and mumps before vaccination, and 41% against rubella. Of these, 88% seroconverted to measles and 80% to mumps, and all converted to rubella when sera were tested by the haemolysis in gel method. After a neutralisation test against measles as well all children showed immunity to the disease. A low incidence of measles and declining figures for mumps and rubella were reported in 1984 to 1986. An outbreak of rubella during 1985 affected mainly boys in age cohorts in which only the girls had been vaccinated during the 1970s.

Child↗
PubMed1986

Vaccination with a combined vaccine against measles, mumps and rubella aiming at elimination of the three diseases.

General vaccination with a combined measles, mumps and rubella vaccine was introduced in Sweden in 1982. The vaccination is performed at the age of 18 months and 12 years. The coverage in the former age was about 90% and in the latter between 80 and 90%. Seroconversion against measles was 96% in 18 months old and 82% in the 12 year old. The corresponding figures concerning mumps were 93 and 80% and concerning rubella 99 and 100%. Before this vaccination was introduced preschool children were partly vaccinated against measles and teen-age girls against rubella. The measles morbidity is low since the beginning of the 1980's, the morbidity of mumps is unchanged while rubella was epidemic in 1985. Mainly unvaccinated age groups were affected.

Child↗
PubMedDate not supplied

The influence of hydrosalpinx on IVF and embryo transfer: a review.

Several retrospective studies have shown an impaired outcome of IVF in the presence of hydrosalpinx. The retrospective data have been compiled and presented in meta-analyses, demonstrating a reduction by half in the probability of achieving a pregnancy in the presence of hydrosalpinx and a doubled rate of spontaneous abortion. The main theories trying to explain the underlying mechanisms have focused on potential embryotoxic properties of the fluid or impaired endometrial receptivity to implantation. Several mouse studies have suggested an embryotoxic effect of the hydrosalpingeal fluid, a finding which is not supported in studies on human embryos. It is believed that the fluid exerts a detrimental effect on the endometrium by altering the receptivity or simply by causing a mechanical hindrance for implantation. Different treatment options would then be tubal ligation, salpingostomy, aspiration of hydrosalpinx fluid or salpingectomy. The effect of aspiration has been studied in a few retrospective trials with contradictory results. Treatment with salpingectomy has entered into clinical practice without proper evidence for its benefit. Concerns have also been raised about the potential hazard of surgical intervention to ovarian circulation and function. A randomized controlled trial on salpingectomy prior to IVF has now been conducted as a multicentre study in Scandinavia. Laparoscopic salpingectomy prior to IVF was shown to be beneficial in patients with large hydrosalpinges that were visible on ultrasound, a result which supports the theory of the fluid being involved in the impaired implantation process.

Embryo Transfer↗