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3.Clinical use cytogenetic karyotyping , fluorescence in situ hybridization , and primed in situ labelling in prenatal diagnosis.

Young Ju KIM ; Bock Hi WOO ; Hun Jin YANG ; Mi Young PARK ; Young Hi LEE ; Jung Ja AHN

Korean Journal of Obstetrics and Gynecology 1999;42(1):72-79

OBJECTIVE: Increasingly it is being recognized that genetic factors play a significant role in causing malformation. There are many available prenatal diagnostic methods including cytogenetic karyotyping using amniocentesis and cordocentesis, fluorescence in situ hybridization(FISH), and primed in situ labelling(PRINS). Our purpose was to attempt to discuss the clinical use of cytogenetic karyotyping, FISH, and PRINS. METHODS: We conducted 222 cases of cytogenetic karyotyping using amniocentesis and cordocentesis, l0 cases of FISH, and 10 cases of PRINS from January 1996 to July 1998 at Ewha Womans University Mokdong Hospital. Age distribution, chromosomal abnormalities by age group, indication, karyotype, and baby outcomes were performed. RESULTS: Overall incidence of chromosomal abnormalities was 7.7%(17cases) and chromosomal abnormalities were most frequently noted in 30-34 year old women and 35-39 year old women(2.3%, respectively). Among 222 cases, 25-29 year old women were highest(30.2%). Chromosomal abnormalities among cytogenetic karyotyping cases were Down syndrome, Edward syndrome, Patau syndrome, Deletion(8), Inversion(9), etc. The 5 cases of healthy baby among chromosomal abnormalities were delevered. Among 213 cases of karyotyping using amniocentesis, abnormal karyotyping cases were 15 cases. Among 15 cases, 8 cases were terminated and 5 cases of healthy baby were delivered. Among 9 cases of karyotyping using cordocentesis, 2 cases of chromosomal abnormalities(Edward, Down syndrome) were found and 3 cases healthy baby were delivered. Among 10 cases of FISH results, 6 case of FISH results were the same with G-banding and were different from G-banding. Among 10 cases of PRINS results, we got the PRINS results from 7 cases. CONCLUSION: It is concluded that cytogenetic karyotyping, FISH, and PRINS are very useful to detect chromosomal abnormalities.
Age Distribution ; Amniocentesis ; Chromosome Aberrations ; Cordocentesis ; Cytogenetics* ; Down Syndrome ; Female ; Fluorescence* ; Humans ; In Situ Hybridization* ; Incidence ; Karyotype ; Karyotyping* ; Prenatal Diagnosis* ; Primed In Situ Labeling

OBJECTIVE: Currently, preparation for childbirth is becoming an increasingly popular addition to patient education. Because of this interest, it seems advisable to review the evidence on the effect of prepared childbirth. The objective of this study is to evaluate the effectiveness of Lamaze preparation on labor and delivery. METHODS: To investigate whether prepared-childbirth courses offer measurable physical advantages, we compared the labor and delivery characteristics of 80 primiparas who had taken Lamaze-training classes with 76 control patients who had not. We reviewed retrospectively obstetrical records of 156 pregnant women delivered in Ewha Womans University MokDong Hospital from January to December, 1997. RESULT: The length of the first stage of labor in the group that attended childbirth preparation classes was 5.70 hours and 6.93 hours in the comparison group. This difference was statistically significant (P= .040). The mean duration of the second stage of labor in attenders was 42.43 minutes and 41.16 minutes in the nonattenders(P= .719). Average duration of labor in attenders was 1.07 hours shorter than in nonattenders (P= .075). The cesarean section rate in attenders was 25% compared with 36.8% in nonattenders (P= .10920). CONCLUSION: No statistical significance was found in this study. However we need to be aware that the length of first stage of labor was shorter and the rate of cesarean section was lower in prepared group. Childbirth education should be integrated into prenatal health care to be readily available for all women.
Cesarean Section ; Delivery of Health Care ; Female ; Humans ; Parturition ; Patient Education as Topic ; Pregnancy ; Pregnant Women ; Prenatal Education ; Retrospective Studies