Browsing by Author "CROXATTO, HD"

Now showing 1 - 6 of 6
  • No Thumbnail Available
    Item
    7-CELL HUMAN EGG RECOVERED FROM OVIDUCT
    (1975) AVENDANO, S; CROXATTO, HD; PEREDA, J; CROXATTO, HB
  • No Thumbnail Available
    Item
    ADNEXAL COMPLICATIONS IN WOMEN UNDER TREATMENT WITH PROGESTOGEN IMPLANTS
    (1975) CROXATTO, HD; DIAZ, S; ROSATI, S; CROXATTO, HB
  • No Thumbnail Available
    Item
    ATTEMPTS TO PROGRAM OVULATION WITH EXOGENOUS ESTROGENS AND LH-RH ANALOGUE
    (1975) ZANARTU, J; ROSNER, JM; GUILOFF, E; IBARRAPOLO, AA; CROXATTO, HD; CROXATTO, HB; AGUILERA, E; COY, DH; SCHALLY, AV
  • No Thumbnail Available
    Item
    CORRELATION BETWEEN HISTOLOGIC DATING OF HUMAN CORPUS-LUTEUM AND THE LUTEINIZING-HORMONE PEAK-BIOPSY INTERVAL
    (1980) CROXATTO, HD; ORTIZ, ME; CROXATTO, HB
    The accuracy of retrospective dating of ovulation in women based on the histologic dating of the corpus luteum was assessed. Corpora lutea enucleated from the ovary of 39 women from 1-6 days following the luteinizing hormone [LH] peak in plasma were examined by routine histologic techniques and dated according to Corner''s criteria. The correlation between the LH peak-biopsy interval and histologic dating was assessed. Linear regression analysis of the data gave a correlation coefficient of 0.76. The dating of different corpora lutea obtained at the same LH peak-biopsy interval can differ by as much as 4 days. The stages named by Corner as days 1 and 2 seem to develop within the first 24 h following the LH peak, while stages corresponding to days 4 and 5 each take 2 days to develop. The use of corpus luteum morphologic features for retrospective timing of ovulation is evidently subject to an error of variable magnitude due to unequal duration of each stage, and considerable individual variation.
  • No Thumbnail Available
    Item
    ON THE RATE OF TUBAL PREGNANCY CONTRALATERAL TO THE CORPUS-LUTEUM
    (1988) INSUNZA, A; DEPABLO, F; CROXATTO, HD; LETELIER, LM; MORANTE, M; CROXATTO, HB
    Ectopic implantation of the embryo in the tube opposite to the tube opposite to the ovary containing the corpus luteum constitutes evidence of peritoneal or uterine transmigration of the egg. The frequency of this phenomenon was reinvestigated utilizing histopathologic confirmation of the side of the corpus luteum. A tubal pregnancy contralateral to the ovulating ovary was found in 28% of 67 cases, indicating that either the oocyte, the zygote or the embryo had entered the tube in which implantation took place from a medial site such as the peritoneal or the uterine cavity rather than directly from the ovulating ovary. Assuming that once in the medial site there is equal chance of entering either tube, it follows that in 56% of tubal pregnancies the egg has entered the tube from a midline location. Attempts to recover the oocyte from the tubes in normal women were successful in fewer than 5% of cases contralateral to the corpus luteum. It is concluded that tubal pregnancy is associated with a significant increase in the occurrence of transmigration of the egg.
  • No Thumbnail Available
    Item
    TEMPORAL RELATIONSHIPS OF ESTROGEN, PROGESTERONE, AND LUTEINIZING-HORMONE LEVELS TO OVULATION IN WOMEN AND INFRAHUMAN PRIMATES
    (1978) PAUERSTEIN, CJ; EDDY, CA; CROXATTO, HD; HESS, R; SILERKHODR, TM; CROXATTO, HB