Obstetrician & Gynecologist (OB/GYN)
23 years of experience
Video profile
Accepting new patients
DFW Fertility Associates
8160 Walnut Hill Ln
Ste 328
Dallas, TX 75231
Locations and availability (3)

Education ?

Medical School Score Rankings
The University of Texas Southwestern (1987)
  • Currently 4 of 4 apples
Top 25%

Awards & Distinctions ?

Castle Connolly's Top Doctors™ (2012 - 2013)
American Board of Obstetrics and Gynecology
American Society for Reproductive Medicine

Affiliations ?

Dr. Chantilis is affiliated with 14 hospitals.

Hospital Affilations



  • UT Southwestern University Hospital - St. Paul
    5909 Harry Hines Blvd, Dallas, TX 75235
    • Currently 4 of 4 crosses
    Top 25%
  • UT Southwestern University Hospital - Zale Lipshy
    5151 Harry Hines Blvd, Dallas, TX 75235
    • Currently 4 of 4 crosses
    Top 25%
  • Texas Health Harris Methodist Hospital Southwest Fort Worth
    6100 Harris Pkwy, Fort Worth, TX 76132
    • Currently 4 of 4 crosses
    Top 25%
  • Harris Methodist H E B
    1600 Hospital Pkwy, Bedford, TX 76022
    • Currently 4 of 4 crosses
    Top 25%
  • Texas Health Harris Methodist Hospital Azle
    108 Denver Trl, Azle, TX 76020
    • Currently 3 of 4 crosses
    Top 50%
  • Texas Health Presbyterian Hospital Allen
    1105 Central Expy N, Allen, TX 75013
    • Currently 3 of 4 crosses
    Top 50%
  • Texas Health Presbyterian Hospital Of Dallas
    8200 Walnut Hill Ln, Dallas, TX 75231
    • Currently 3 of 4 crosses
    Top 50%
  • Parkland Health & Hospital System
    5201 Harry Hines Blvd, Dallas, TX 75235
    • Currently 1 of 4 crosses
  • Texas Health Dallas
  • Harris Methodist - Springwood
    1608 Hospital Pkwy, Bedford, TX 76022
  • Harris Continued Care Hospital
    1301 Pennsylvania Ave, Fort Worth, TX 76104
  • University Hospital - St Paul
  • Harris Methodist Hospital
  • UT Southwestern St Paul Hospital
  • Publications & Research

    Dr. Chantilis has contributed to 11 publications.
    Title A Randomized Controlled Study of Human Serum Albumin and Serum Substitute Supplement As Protein Supplements for Ivf Culture and the Effect on Live Birth Rates.
    Date June 2009
    Journal Human Reproduction (oxford, England)

    It has been speculated that the addition of proteins more complex than human serum albumin (HSA) to culture media may improve IVF outcomes. Whether the expense, labor and risk of adding additional human-derived protein to IVF media are warranted is a question unanswered.

    Title A Controlled Randomized Trial Evaluating the Effect of Lowered Incubator Oxygen Tension on Live Births in a Predominantly Blastocyst Transfer Program.
    Date April 2009
    Journal Human Reproduction (oxford, England)

    The potentially damaging effect of free O(2) radicals to cultured embryos may be reduced by adding scavengers to the culture media or by reducing the incubator O(2) levels. However, lowering the O(2) in the culture environment can be expensive, troublesome and may not be justifiable. The objective of this study was to evaluate the effect of lowered incubator O(2) tension on live birth rates in a predominately Day 5 embryo transfer program.

    Title A Randomized Prospective Trial Comparing Gonadotropin-releasing Hormone (gnrh) Antagonist/recombinant Follicle-stimulating Hormone (rfsh) Versus Gnrh-agonist/rfsh in Women Pretreated with Oral Contraceptives Before in Vitro Fertilization.
    Date April 2005
    Journal Fertility and Sterility

    OBJECTIVE: To compare the effects of oral contraceptive (OC) pill pretreatment in recombinant FSH/GnRH-antagonist versus recombinant FSH/GnRH-agonist stimulation in in vitro fertilization (IVF) patients, and to evaluate optimization of retrieval day. DESIGN: Prospective, randomized, multicenter study. SETTING: Private practice and university centers. PATIENT(S): Eighty patients undergoing IVF who met the appropriate inclusion criteria. INTERVENTION(S): Four study centers recruited 80 patients. The OC regimen began on cycle days 2 to 4 and was discontinued on a Sunday after 14 to 28 days. The recombinant FSH regimen was begun on the following Friday. The GnRH-agonist group was treated with a long protocol; the GnRH-antagonist was initiated when the lead follicle reached 12 to 14 mm. When two follicles had reached 16 to 18 mm, hCG was administered. MAIN OUTCOME MEASURE(S): The primary outcome measures were the number of cumulus-oocyte complexes, day of the week for oocyte retrieval, and total dose and days of stimulation of recombinant FSH. Secondary efficacy variables included pregnancy and implantation rate; serum E(2) levels on stimulation day 1; serum E(2), P, and LH levels on the day of hCG administration; follicle size on day 6 and day of hCG administration; the total days of GnRH-analogue treatment; total days on OC; total days from end of OC to oocyte retrieval; and the cycle cancellation rate. RESULT(S): Patient outcomes were similar for the days of stimulation, total dose of gonadotropin used, two-pronuclei embryos, pregnancy (44.4% GnRH-antagonist vs. 45.0% GnRH-agonist, P=.86) and implantation rates (22.2% GnRH-antagonist vs. 26.4% GnRH-agonist, P=.71). Oral contraceptive cycle scheduling resulted in 78% and 90% of retrievals performed Monday through Friday for GnRH-antagonist and GnRH-agonist. A one day delay in OC discontinuation and recombinant FSH start would result in over 90% of oocyte retrievals occurring Monday through Friday in both groups. CONCLUSION(S): The OC pretreatment in recombinant FSH/GnRH-antagonist protocols provides a patient-friendly regimen and can be optimized for weekday retrievals. No difference was seen in number of 2PN embryos, cryopreserved embryos, embryos transferred, implantation and pregnancy rates between the two stimulation protocols.

    Title Steroid Cell Tumor Associated with Primary Amenorrhea and Virilization.
    Date February 2005
    Journal Endocrine Practice : Official Journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists

    A 22-year-old woman sought medical advice because of primary amenorrhea and virilization that was manifested by facial hirsutism, temporal balding, and clitorimegaly. Plasma steroid levels were determined at the time of initial assessment; androstenedione and testosterone were increased in comparison with normal values. Vaginal ultrasonography revealed the presence of a mass localized to the right ovary. The patient underwent oophorectomy, and pathologic examination of the surgical specimen led to the identification of a steroid cell tumor associated with a polycystic ovary. Tumor steroid-metabolizing enzymes were evaluated in vitro: 17alpha-hydroxylase, 3beta-hydroxysteroid dehydrogenase/ delta5-->4-isomerase, 17beta-hydroxysteroid oxidoreductase, and 5a-reductase, which are required for androgen synthesis, were present in the tumor tissue. Postoperatively, plasma androstenedione and testosterone levels returned to normal. This study demonstrated that the tumor was the source of the increased levels of androgen precursor and androgen in this woman; excess tumor-derived androgen may have been the trigger in the development of the polycystic ovary.

    Title Use of Crinone Vaginal Progesterone Gel for Luteal Support in in Vitro Fertilization Cycles.
    Date December 1999
    Journal Fertility and Sterility

    OBJECTIVE: To investigate the efficacy and safety of intravaginal Crinone 8% (Columbia Research Laboratories, Miami. FL) versus IM progesterone for luteal phase support after IVF-ET. DESIGN: Prospective open trial with comparison to historical controls. SETTING: University hospital. PATIENT(S): Two hundred six women undergoing IVF-ET. INTERVENTION(S): One hundred patients received Crinone vaginal progesterone gel (90 mg once daily) and 106 patients received IM progesterone (50 mg once daily) beginning on the evening of oocyte retrieval. MAIN OUTCOME MEASURE(S): Pregnancy and miscarriage rates, and midluteal serum progesterone levels. RESULT(S): Positive beta-hCG pregnancy rates, clinical pregnancy rates per transfer, and ongoing pregnancy rates were similar for the Crinone and IM progesterone groups. Women who received Crinone had higher rates of biochemical pregnancy loss but lower rates of clinical pregnancy loss (i.e., spontaneous abortion) than women who received IM progesterone. Midluteal serum progesterone concentrations were significantly higher in the IM progesterone group (94.3+/-8.8 ng/mL versus 57.7+/-7.4 ng/mL). Several women who received Crinone had vaginal bleeding 11-13 days after oocyte retrieval. CONCLUSION(S): For all age categories, positive beta-hCG and ongoing pregnancy rates were similar when Crinone or IM progesterone was given for luteal phase support in IVF-ET cycles, despite lower serum progesterone concentrations and higher rates of biochemical pregnancy loss with Crinone. Although the results of this study support the use of Crinone as an acceptable alternative for luteal support after IVF-ET, differences in bleeding patterns and rates of biochemical pregnancy loss demonstrate the need for a prospective randomized study.

    Title Effect of Antiphospholipid Antibodies in Women Undergoing In-vitro Fertilization: Role of Heparin and Aspirin.
    Date September 1997
    Journal Human Reproduction (oxford, England)

    To describe the prevalence of antiphospholipid antibodies in women undergoing in-vitro fertilization (IVF) and to determine if heparin and aspirin affect implantation rates, 191 women with a history of infertility undergoing IVF were prospectively tested for antiphospholipid antibodies. This was a two-centre, non-randomized comparison of women with positive antiphospholipid antibodies receiving heparin and aspirin versus standard treatment. An enzyme-linked immunosorbent assay, with referenced standards and known positive and negative sera on each plate, was utilized to measure antibodies to cardiolipin, phosphatidylinositol, phosphatidylglycerol, phosphatidylserine and phosphatidylethanolamine. Statistical analyses of results included analysis of variance and Fisher's two-tailed exact test. Antiphospholipid antibodies were detected in 18.8% of patients undergoing IVF compared with only 5.5% in the 200 normal controls, 26% in 200 women with recurrent pregnancy loss, and 32% in 200 women with systemic lupus erythematosus. In conclusion, antiphospholipid antibodies were found more frequently in women undergoing IVF than in the normal control population. Although implantation rates appeared higher in the group of women treated with heparin and aspirin, no statistically significant differences were detected in implantation, pregnancy and ongoing pregnancy rates between those who received standard therapy and those treated with heparin and aspirin.

    Title Laparoscopic Removal of Gonads Containing on Occult Seminoma in a Woman with Complete Androgen Resistance.
    Date May 1997
    Journal The Journal of the American Association of Gynecologic Laparoscopists

    A 20-year-old woman with complete androgen resistance (AR; 46,XY), underwent prophylactic laparoscopic gonadectomy because of the known increased risk of gonadal malignancy. The procedure was performed with electrocoagulation using a four-puncture technique. Pelvic and abdominal inspection revealed no gonadal or metastatic tumor. The testes and attached structures were retracted medially, and the peritoneum and gonadal vessels were incised after electrocoagulation, thereby removing the gonads from the sidewalls. The gonads were individually placed into a specimen retrieval bag and removed through the suprapubic cannula site. Pathologic examination revealed an occult 8-mm seminoma in the let gonad, as well as bilateral Sertoli cell hamartomas, fallopian tube remnants, and smooth muscle tissue (mullerian remnants) adjacent to the gonads. Postoperatively, tumor markers were normal, and abdominal and pelvic computerized tomographic scans and chest radiographs were negative for possible metastatic disease. This case confirms that laparoscopic removal of testes in women with AR is effective, safe, and quick. Because of normal-appearing gonad may contain an occult tumor, we recommend using a retrieval bag, which may prevent dissemination of potentially malignant cells that may occur with unprotected morcellation.

    Title Atypical Presentation of a Vaginal Foreign Body.
    Date November 1996
    Journal Obstetrics and Gynecology
    Title The Effect of Gonadotropin-releasing Hormone Agonist on Thyroid-stimulating Hormone and Prolactin Secretion in Adult Premenopausal Women.
    Date October 1995
    Journal Fertility and Sterility

    OBJECTIVE: To investigate the effects of chronic administration of GnRH agonists (GnRH-a) on pituitary TSH and PRL secretion in adult women. DESIGN: Prospective case-controlled study. SETTING: Academic division of Reproductive Endocrinology, Department of Obstetrics and Gynecology. PATIENTS: Ten ovulatory women and 10 women treated with monthly depot injections of leuprolide acetate (3.75 mg) were studied. INTERVENTIONS: All subjects underwent pituitary stimulation with human thyrotropin-releasing hormone (TRH), 500 micrograms IV. MAIN OUTCOME MEASURES: Basal and post-TRH-stimulated serum levels of TSH and PRL at 15, 30, 45, 60, 90, 120, and 180 minutes were compared among the two groups. Also, basal of T4, triiodothyronine, and triiodothyronine resin uptake studies were obtained and compared among the GnRH-a-treated and control groups. RESULTS: No statistically significant difference between baseline or TRH-stimulated serum TSH and PRL could be detected between control and GnRH-a-treated groups of women. Furthermore, these groups were similar with respect to routine thyroid function assays. CONCLUSION: Gonadotropin-releasing hormone agonist does not significantly affect baseline or TRH-stimulated TSH and PRL levels nor basal serum T4 and triiodothyronine levels or triiodothyronine resin uptake in adult women.

    Title Recognition of Depression in Obstetric/gynecology Practices.
    Date September 1995
    Journal American Journal of Obstetrics and Gynecology

    Depression is a common and serious health problem that occurs twice as often in women as in men. The lifetime prevalence of major depression in women is estimated to be as high as 21%. Although less severe and less common, mild depression and dysthymia (chronic mild depression) can cause functional disability and require treatment. Regardless of severity or duration, depression can be difficult to recognize because it frequently is masked by complaints that accompany other common obstetric and gynecologic illnesses and events. This article reviews the various depressive disorders in women with a focus on presentations that occur in obstetric and gynecologic practice.

    Title Laparoscopic Removal of Gonads in Women with Abnormal Karyotypes.
    Date November 1993
    Journal The Journal of Reproductive Medicine

    The objective of this study was to evaluate if laparoscopy can be an acceptable alternative to laparotomy for gonadectomy in women with gonadal dysgenesis (46,XY karyotype or 45,X karyotype with evidence of hyperandrogenism). We retrospectively analyzed five cases of gonadal dysgenesis that were managed by laparoscopic gonadectomy. All five patients underwent laparoscopic gonadectomy performed at a day surgery unit of a university medical center without any complications and were discharged the same day. The average operative time was 72 minutes (range, 35-95), the average blood loss was 20 mL, and the average cost was $4,380. We conclude that laparoscopic gonadectomy is a safe, effective and economical procedure to perform on patients with Y chromosomes or evidence of abnormal gonads. Laparoscopy should be accepted as the treatment of choice in these patients by physicians experienced in pelviscopic surgery.

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