Biomedical subjects

L W Krysa

Publications and source records attributed to L W Krysa.

4 recordsLinked to original sources

PubMed1998

Comfort care interventions in a preimplantation genetic testing program.

The fields of human genetics and assisted reproductive technology (ART) have experienced many scientific advances over the past 50 years. The integration of these two clinical specialties has resulted in the ability to perform preimplantation genetic testing (PGT) on an embryo created through ART. This is a technology that can be used by individuals at risk for the transmission of a genetic disorder to prevent occurrence of the disorder in their child. Both the process of PGT and the life experiences that lead to the decision to use PGT stimulate many levels and types of discomfort. Holistic comfort care interventions performed by the nurse are uniquely designed to eliminate or reduce discomfort and to enable those at risk to utilize the available technologies to create healthy families.

Adult↗

PubMed1996

The comfort and discomfort of infertility.

Infertility has been described as a life crisis by many authors. Nursing has a major role in assisting couples through the infertility diagnosis and treatment regimen. The role of nurses is expanding as technologic advances expand and families are created using donor eggs, donor sperm, expanded male infertility techniques, host uteri, and preimplantation genetic diagnosis. A framework for nurses to use to provide comfort in infertility is provided, as are suggestions regarding nursing interventions to assist infertile patients through the physical, social, psychospiritual, and environmental contexts. The couple using advanced reproductive technologies proceeds through the stages of grief to, it is hoped, resolution. Kolcaba's matrix can be used as a framework for nursing interventions to move couples along the continuum of ease, relief, and transcendence.

Adaptation, Psychological↗

PubMed1995

Uterine receptivity in an oocyte donation programme.

Oocyte donation is a useful model for the assessment of potential factors affecting implantation since embryos generated are from younger oocytes than in in-vitro fertilization programmes and are therefore expected to have higher and more consistent implantation rates. Transvaginal sonographic measurement of endometrial thickness, echogenic pattern and uterine artery impedance, measured as pulsatility index (PI) and resistance index (RI), were retrospectively compared in 99 recipient women following 117 fresh embryo transfers that resulted in 51 conception cycles and 66 non-conception cycles. The prevalence of a multilayered echogenic pattern was significantly greater (91.2%) in conception than in non-conception (44.4%) cycles. No differences in endometrial thickness, PI or RI were observed between conception and non-conception cycles. However, no pregnancy occurred when the PI was > or = 3.4 (sensitivity 100%). The number of days or cumulative dose of oestrogen intake and the serum oestradiol concentration prior to progesterone administration were not different in the multilayered pattern versus other echogenic pattern groups. The data show that it may be beneficial to await achievement of a PI < 3.4 and a multilayered pattern endometrium prior to embryo transfer in an oocyte donation programme.

Adult↗

PubMed1994

Intravenous immunoglobulin for in-vitro fertilization failure.

The aim of this study was to determine the effectiveness of intravenous (i.v.) immunoglobulin (Ig) for treatment of individuals experiencing failure after in-vitro fertilization (IVF) and embryo transfer. A total of 29 women with unexplained infertility who failed to become pregnant after IVF/embryo transfer were divided into two groups based on performance in previous IVF cycles: 16 women had fertilization of > or = 50% of oocytes retrieved and/or produced > or = 3 embryos each cycle and 13 had fertilization of < 50% of oocytes retrieved and/or produced < 3 embryos each cycle. Each woman had received at least 12 transferred embryos (95th percentile for successful IVF patients) or had experienced two or more biochemical pregnancies without ultrasonic confirmation of implantation during previous IVF/embryo transfer attempts. All women received i.v. Ig 500 mg/kg prior to the next embryo transfer. Only one of the 13 (8%) women with suboptimal fertilization and embryo yield became pregnant in the treatment cycle. Of 16 women who had previously had fertilization of at least 50% of oocytes retrieved and produced at least three embryos, nine (56%) became pregnant in the treatment cycle. The difference in pregnancy rates between the two groups is significant (P = 0.02). Intravenous Ig is useful in the treatment of unexplained IVF failure in women who have oocyte fertilization rates > or = 50% and generate at least three embryos per cycle.

Adult↗