Craig H. Syrop, MD, MHCDS

Portrait
Professor
CCIO of The Signal Center
Emeritus Professor of Obstetrics and Gynecology - Reproductive Endocrinology and Infertility

Contact Information

Primary Office: 224 CMAB
Iowa City, IA 52242
319-335-9502

Education

The College of William & Mary
MD, Medicine, The Medical College of Richmond

Resident, Obstetrics & Gynecology, University of Iowa College of Medicine
Fellow, Endocrinology & Infertility, University of North Carolina, Chapel Hill
Post Doctoral Fellow, Healthcare Delivery Science, Master's Program, Dartmouth Institute and Tuck School of Business

Licensure and Certifications

American Institute of Ultrasound in Medicine
Reproductive Endocrinology - ABOG
American Board of Obstetrics & Gynecology - ABOG

Publications

Goyal, V., Mengeling, M. A., Booth, B. M., Torner, J. C., Syrop, C. H. & Sadler, A. G. (2017). Lifetime Sexual Assault and Sexually Transmitted Infections Among Women Veterans. J Womens Health (Larchmt), 26(7), 745-754. PMID: 28281918.

Ryan, G., Thoma, M., Stern, J. E., Mengeling, M., O'Shea, A., Syrop, C. H., Stewart, K., Torner, J. & Van Voorhis, B. (2017). Reproductive Health Risk Due to Sexual and Combat-Related Trauma in US Veterans. Fertility and Sterility, 108(3), Supplement e2-e3. DOI: https://doi.org/10.1016/j.fertnstert.2017.07.025.

Ryan, G. L., Mengeling, M. A., Summers, K. M., Booth, B. M., Torner, J. C., Syrop, C. H. & Sadler, A. G. (2016). Hysterectomy Risk in Premenopausal-Aged Military Veterans - Associations with Sexual Assault and Gynecologic Symptoms. Am J Obstet Gynecol, 214(3), 352.e1-352.e13. PMID: 26475424.

Ryan, G. L., Mengeling, M. A., Booth, B. M., Torner, J. C., Syrop, C. H. & Sadler, A. G. (2014). Voluntary and involuntary childlessness in female veterans - associations with sexual assault. Fertil Steril, Elsevier Publishing Co, 102(2), 539-47. PMID: 24875400.

Kresowik, J. D., Syrop, C. H., Van Voorhis, B. J. & Ryan, G. L. (2012). Ultrasound is the optimal choice for guidance in difficult hysteroscopy. Ultrasound in obstetrics & gynecology. The official journal of the International Society of Ultrasound in Obstetrics & Gynecology, 39(6), 715-8. PMID: 22173892.

Sadler, A. G., Mengeling, M. A., Syrop, C. H., Torner, J. C. & Booth, B. M. (2011). Military service, Lifetime sexual assault and cervical cytologic abnormalities. Journal of Women's Health, 20(11), 1693-701. PMID: 21834691.

Shroff, R., Syrop, C. H., Davis, W., Van Voorhis, B. J. & Dokras, A. (2007). Risk of metabolic complications in the new PCOS phenotypes based on the Rotterdam criteria. Fertility and sterility, 88(5), 1389-95. PMID: 17462641.

Stahl, B. C., Patil, S. R., Syrop, C. H., Sparks, A. E. & Wald, M. (2007). Supernumerary minute ring chromosome 14 in a man with primary infertility and left varicocele. Fertility and sterility, 87(5), 1213.e1-3. PMID: 17208235.

Ryan, G. L., Sparks, A. E., Sipe, C. S., Syrop, C. H., Dokras, A. & Van Voorhis, B. J. (2007). A mandatory single blastocyst transfer policy with educational campaign in a United States IVF program reduces multiple gestation rates without sacrificing pregnancy rates. Fertility and sterility, 88(2), 354-60. PMID: 17490657.

Dokras, A., Baredziak, L., Blaine, J., Syrop, C., VanVoorhis, B. J. & Sparks, A. (2006). Obstetric outcomes after in vitro fertilization in obese and morbidly obese women. Obstetrics and gynecology, 108(1), 61-9. PMID: 16816057.

Van Voorhis, B. J., Greensmith, J. E., Dokras, A., Sparks, A. E., Simmons, S. T. & Syrop, C. H. (2005). Hyperbaric oxygen and ovarian follicular stimulation for in vitro fertilization: a pilot study. Fertility and sterility, 83(1), 226-8. PMID: 15652917.

Ryan, G. L., Syrop, C. H. & Van Voorhis, B. J. (2005). Role, epidemiology, and natural history of benign uterine mass lesions. Clinical Obstetrics and Gynecology, 48(2), 312-24. PMID: 15805789.

Wald, M., Sparks, A., Sandlow, J., Van-Voorhis, B., Syrop, C. H. & Niederberger, C. S. (2005). Computational models for prediction of IVF/ICSI outcomes with surgically retrieved spermatozoa. Reproductive biomedicine online, 11(3), 325-31. PMID: 16176672.

Ryan, G. L., Syrop, C. H. & Van Voorhis, B. H. (2005). Role, epidemiology and natural history of benign uterine mass lesions. In M. Gibson (Eds.) Clinical Obstetrics and Gynecology. (2), pp. 312-324. Philadelphia, PA: Lippincott Williams & Wilkins.

Ryan, G. L., Zhang, S. H., Dokras, A., Syrop, C. H. & Van Voorhis, B. J. (2004). The desire of infertile patients for multiple births. Fertility and sterility, 81(3), 500-4. PMID: 15037390.

Armstrong, V., Hansen, W. F., Van Voorhis, B. J. & Syrop, C. H. (2003). Detection of cesarean scars by transvaginal ultrasound. Obstetrics and gynecology, 101(1), 61-5. PMID: 12517646.

Syrop, C. H., Van Voorhis, B. J. (2003). Use of Ultrasound to Predict and Optimize Outcomes of Ovulation Induction. In Clinics of North America. pp. 1-23. W.B. Saunders, an Imprint of Elsevier Science, Inc.

Lowe, M. P., Cooper, B. C., Sood, A. K., Davis, W. A., Syrop, C. H. & Sorosky, J. I. (2003). Implementation of assisted reproductive technologies following conservative management of FIGO grade I endometrial adenocarcinoma and/or complex hyperplasia with atypia. Gynecologic oncology, 91(3), 569-72. PMID: 14675678.

Lowe, M. P., Bender, D., Sood, A. K., Davis, W., Syrop, C. H. & Sorosky, J. I. (2002). Two successful pregnancies after conservative treatment of endometrial cancer and assisted reproduction. Fertility and sterility, 77(1), 188-9. PMID: 11779615.

Ryan, G. L., Quinn, T. J., Syrop, C. H. & Hansen, W. F. (2002). Placenta accreta postpartum. Obstetrics and gynecology, 100(5 Pt 2), 1069-72. PMID: 12423808.

DeWaay, D. J., Syrop, C. H., Nygaard, I. E., Davis, W. A. & Van Voorhis, B. J. (2002). Natural history of uterine polyps and leiomyomata. Obstetrics and gynecology, 100(1), 7-Mar. PMID: 12100797.

Van Voorhis, B. J., Barnett, M., Sparks, A. E., Syrop, C. H., Rosenthal, G. & Dawson, J. (2001). Effect of the total motile sperm count on the efficacy and cost-effectiveness of intrauterine insemination and in vitro fertilization. Fertility and sterility, 75(4), 661-8. PMID: 11287015.

Van Voorhis, B. J., Syrop, C. H. (2000). Cost-effective treatment for the couple with infertility. In R. M. Pitkin , J. R. Scott (Eds.) Clinical Obstetrics and Gynecology. (4), pp. 958-973. Philadelphia, PA: Lippincott-Raven Publishers. PMID: 11100309.

Van Voorhis, B. J., Dokras, A. & Syrop, C. H. (2000). Bilateral undescended ovaries: association with infertility and treatment with IVF. Fertility and sterility, 74(5), 1041-3. PMID: 11056257.

Syrop, C. H., Dawson, J. D., Husman, K. J., Sparks, A. E. & Van Voorhis, B. J. (1999). Ovarian volume may predict assisted reproductive outcomes better than follicle stimulating hormone concentration on day 3. Human reproduction (Oxford, England), 14(7), 1752-6. PMID: 10402382.

Stovall, D. W., Allen, B. D., Sparks, A. E., Syrop, C. H., Saunders, R. G. & VanVoorhis, B. J. (1999). The cost of infertility evaluation and therapy: findings of a self-insured university healthcare plan. Fertility and sterility, 72(5), 778-84. PMID: 10560977.

Clevenger-Hoeft, M., Syrop, C. H., Stovall, D. W. & Van Voorhis, B. J. (1999). Sonohysterography in premenopausal women with and without abnormal bleeding. Obstetrics and gynecology, 94(4), 516-20. PMID: 10511351.

Kennedy, C. M., Peleg, D., Syrop, C. & Nygaard, I. (1999). Antenatal diagnosis of vesicouterine fistula. Obstetrics and gynecology, 94(5 Pt 2), 808-9. PMID: 10546736.

Stovall, D. W., Parrish, S. B., Van Voorhis, B. J., Hahn, S. J., Sparks, A. E. & Syrop, C. H. (1998). Uterine leiomyomas reduce the efficacy of assisted reproduction cycles: results of a matched follow-up study. Human reproduction (Oxford, England), 13(1), 192-7. PMID: 9512256.

Van Voorhis, B. J., Stovall, D. W., Allen, B. D. & Syrop, C. H. (1998). Cost-effective treatment of the infertile couple. Fertility and sterility, 70(6), 995-1005. PMID: 9848285.

Van Voorhis, B. J., Sparks, A. E., Syrop, C. H. & Stovall, D. W. (1998). Ultrasound-guided aspiration of hydrosalpinges is associated with improved pregnancy and implantation rates after in-vitro fertilization cycles. Human reproduction (Oxford, England), 13(3), 736-9. PMID: 9572444.

Stovall, D. W., Van Voorhis, B. J., Sparks, A. E., Adams, L. M. & Syrop, C. H. (1998). Selective early elimination of luteal support in assisted reproduction cycles using a gonadotropin-releasing hormone agonist during ovarian stimulation. Fertility and sterility, 70(6), 1056-62. PMID: 9848295.

Van Voorhis, B. J., Sparks, A. E., Allen, B. D., Stovall, D. W., Syrop, C. H. & Chapler, F. K. (1997). Cost-effectiveness of infertility treatments: a cohort study. Fertility and sterility, 67(5), 830-6. PMID: 9130886.

Sandlow, J., Donovan, J., Sparks, A. E., Syrop, C. H., Van Voorhis, B. J. & Stovall, D. (1996). Microsurgical epididymal sperm aspiration. Iowa Medicine: Journal of the Iowa Medical Society, 86(9), 367-8. PMID: 8961632.

Van Voorhis, B. J., Dawson, J. D., Stovall, D. W., Sparks, A. E. & Syrop, C. H. (1996). The effects of smoking on ovarian function and fertility during assisted reproduction cycles. Obstetrics and gynecology, 88(5), 785-91. PMID: 8885914.

Stovall, D. W., Van Voorhis, B. J., Mattingly, K. L., Sparks, A. E., Chapler, F. K. & Syrop, C. H. (1996). The effectiveness of sublingual progesterone administration during cryopreserved embryo transfer cycles: results of a matched follow-up study. Fertility and sterility, 65(5), 986-91. PMID: 8612862.

Van Voorhis, B. J., Syrop, C. H., Vincent, R. D., Chestnut, D. H., Sparks, A. E. & Chapler, F. K. (1995). Tubal versus uterine transfer of cryopreserved embryos: a prospective randomized trial. Fertility and sterility, 63(3), 578-83. PMID: 7851590.

Vincent, R. D., Syrop, C. H., Van Voorhis, B. J., Chestnut, D. H., Sparks, A. E., McGrath, J. M., Choi, W. W., Bates, J. N. & Penning, D. H. (1995). An evaluation of the effect of anesthetic technique on reproductive success after laparoscopic pronuclear stage transfer. Propofol/nitrous oxide versus isoflurane/nitrous oxide. Anesthesiology, 82(2), 352-8. PMID: 7856893.

Van Voorhis, B. J., Syrop, C. H., Allen, B. D., Sparks, A. E. & Stovall, D. W. (1995). The efficacy and cost effectiveness of embryo cryopreservation compared with other assisted reproductive techniques. Fertility and sterility, 64(3), 647-50. PMID: 7641925.

Syrop, C. H., Willhoite, A. & Van Voorhis, B. J. (1995). Ovarian volume: a novel outcome predictor for assisted reproduction. Fertility and sterility, 64(6), 1167-71. PMID: 7589671.

Van Voorhis, B. J., Neff, T. W., Syrop, C. H. & Chapler, F. K. (1994). Primary hypothyroidism associated with multicystic ovaries and ovarian torsion in an adult. Obstetrics and gynecology, 83(5 Pt 2), 885-7. PMID: 8159386.

Varney, N. R., Syrop, C., Kubu, C. S., Struchen, M., Hahn, S. & Franzen, K. (1993). Neuropsychologic dysfunction in women following leuprolide acetate induction of hypoestrogenism. Journal of assisted reproduction and genetics, 10(1), 53-7. PMID: 8499680.

Hammitt, D. G., Syrop, C. H., Walker, D. L. & Bennett, M. R. (1993). Conditions of oocyte storage and use of noninseminated as compared with inseminated, nonfertilized oocytes for the hemizona assay. Fertility and sterility, 60(1), 131-6. PMID: 8513929.

Hammitt, D. G., Syrop, C. H., Van Voorhis, B. J., Walker, D. L., Miller, T. M. & Barud, K. M. (1993). Maturational asynchrony between oocyte cumulus-coronal morphology and nuclear maturity in gonadotropin-releasing hormone agonist stimulations. Fertility and sterility, 59(2), 375-81. PMID: 8425634.

Wenstrom, K. D., Syrop, C. H., Hammitt, D. G. & Van Voorhis, B. J. (1993). Increased risk of monochorionic twinning associated with assisted reproduction. Fertility and sterility, 60(3), 510-4. PMID: 8375535.

Robinson, D., Syrop, C. H. & Hammitt, D. G. (1992). After superovulation-intrauterine insemination fails: the prognosis for treatment by gamete intrafallopian transfer/pronuclear stage transfer. Fertility and sterility, 57(3), 606-12. PMID: 1740206.

Syrop, C. H. (1992). Hyperprolactinemia - infertility and beyond. In M. G. Hammond , L. M. Talbert (Eds.) A Practical Guide for Physicians. (3), pp. 196-209. Blackwell Scientific Publications.

Van Voorhis, B. J., Williamson, R. A., Gerard, J. L., Hammitt, D. G. & Syrop, C. H. (1992). Use of oocytes from anonymous, matched, fertile donors for prevention of heritable genetic diseases. Journal of medical genetics, 29(6), 398-9. PMID: 1619634.

Van Voorhis, B. J., Syrop, C. H., Hammitt, D. G., Dunn, M. S. & Snyder, G. D. (1992). Effects of smoking on ovulation induction for assisted reproductive techniques. Fertility and sterility, 58(5), 981-5. PMID: 1426386.

Syrop, C. H., Sahakian, V. (1992). Transvaginal sonographic detection of endometrial polyps with fluid contrast augmentation. Obstetrics and gynecology, 79(6), 1041-3. PMID: 1579303.

Hammitt, D. G., Syrop, C. H., Van Voorhis, B. J., Walker, D. L., Miller, T. M., Barud, K. M. & Hood, C. C. (1992). Prediction of nuclear maturity from cumulus-coronal morphology: influence of embryologist experience. Journal of assisted reproduction and genetics, 9(5), 439-46. PMID: 1482838.

Van Voorhis, B. J., Schwaiger, J., Syrop, C. H. & Chapler, F. K. (1992). Early diagnosis of ovarian torsion by color Doppler ultrasonography. Fertility and sterility, 58(1), 215-7. PMID: 1624012.

Hammitt, D. G., Aschenbrenner, D. W., Syrop, C. H. & Heinkel, D. D. (1991). Techniques for improving the accuracy and efficiency of the sperm penetration assay. Andrologia, 23(1), 11-5. PMID: 1897749.

Hammitt, D. G., Walker, D. L., Syrop, C. H., Miller, T. M. & Bennett, M. R. (1991). Treatment of severe male-factor infertility with high concentrations of motile sperm by microinsemination in embryo cryopreservation straws. Journal of in vitro fertilization and embryo transfer : IVF, 8(2), 101-10. PMID: 2061678.

Sahakian, V., Syrop, C. & Turner, D. (1991). Endometrial carcinoma: transvaginal ultrasonography prediction of depth of myometrial invasion. Gynecologic oncology, 43(3), 217-9. PMID: 1752490.

Syrop, C., Reiter, R., Hauser, K., Weiner, C. & Shirk, G. (1990). What's new in ob/gyn? Five Iowa physicians respond. Iowa medicine : journal of the Iowa Medical Society, 80(3), 116-8. PMID: 2318598.

Hammitt, D. G., Walker, D. L. & Syrop, C. H. (1990). Improved methods for preparation of culture media for in-vitro fertilization and gamete intra-fallopian transfer. Human reproduction (Oxford, England), 5(4), 457-63. PMID: 2362008.

Hammitt, D. G., Syrop, C. H., Hahn, S. J., Walker, D. L., Butkowski, C. R. & Donovan, J. F. (1990). Comparison of concurrent pregnancy rates for in-vitro fertilization--embryo transfer, pronuclear stage embryo transfer and gamete intra-fallopian transfer. Human reproduction (Oxford, England), 5(8), 947-54. PMID: 2081806.

Hammitt, D., Syrop, C., Hahn, S., Walker, D., Butkowski, C. & Donovan, J. (1989). Clinical results of the in vitro fertilization (IVF) and gamete intrafallopian transfer (GIFT) program at the University of Iowa Hospital and Clinics, Iowa City. Journal of in vitro fertilization and embryo transfer : IVF, 6(5), 317-8. PMID: 2632662.

Hammitt, D. G., Bedia, E., Rogers, P. R., Syrop, C. H., Donovan, J. F. & Williamson, R. A. (1989). Comparison of motility stimulants for cryopreserved human semen. Fertility and sterility, 52(3), 495-502. PMID: 2550282.

Sadler, A. G., Syrop, C. H. (1987). Family Approach with the Infertile Couple. In Family Therapy Collection. Aspen Publishing Co..

Syrop, C. H., Hammond, M. G. (1987). Diurnal variations in midluteal serum progesterone measurements. Fertility and sterility, 47(1), 67-70. PMID: 3792575.

Syrop, C. H., Halme, J. (1987). Cyclic changes of peritoneal fluid parameters in normal and infertile patients. Obstetrics and gynecology, 69(3 Pt 1), 416-8. PMID: 3822290.

Syrop, C. H., Halme, J. (1987). Peritoneal fluid environment and infertility. Fertility and sterility, 48(1), 9-Jan. PMID: 3109960.

Syrop, C. H., Halme, J. (1986). A comparison of peritoneal fluid parameters of infertile patients and the subsequent occurrence of pregnancy. Fertility and sterility, 46(4), 631-5. PMID: 2944771.

Syrop, C. H., Varner, M. W. (1985). Triplet gestation: maternal and neonatal implications. Acta geneticae medicae et gemellologiae, 34(2-Jan), 81-8. PMID: 4050299.

Halme, J., Hammond, M. G., Syrop, C. H. & Talbert, L. M. (1985). Peritoneal macrophages modulate human granulosa-luteal cell progesterone production. The Journal of clinical endocrinology and metabolism, 61(5), 912-6. PMID: 4044779.

Varner, M. W., Meehan, R. T., Syrop, C. H., Strottmann, M. P. & Goplerud, C. P. (1983). Pregnancy in patients with systemic lupus erythematosus. American journal of obstetrics and gynecology, 145(8), 1025-40. PMID: 6837678.

Syrop, C. H., Varner, M. W. (1983). Systemic lupus erythematosus. Clinical obstetrics and gynecology, 26(3), 547-57. PMID: 6352122.