Scholars

Clinical Assistant Professor

Positions:

Assistant Clinical Professor, ObGyn, Texas A&M University Naresh K. Vashisht College of Medicine, Health Science Center
Staff Physician, Obstetrics and Gynecology, Texas A&M University Naresh K. Vashisht College of Medicine
Clerkship Director, ObGyn, Texas A&M University Naresh K. Vashisht College of Medicine, Health Science Center

overview

I have been involved in minimally invasive gynecological research and published over 40 clinical articles, case reports, and medical commentaries covering both obstetrical and gynecological topics. My clinical practice is as an OB/GYN hospitalist at CHI Saint Joseph Regional Hospital in Bryan, Texas.

I am a published author on in office gynecologic surgery and was part of the FDA post-approval study for the Essure 305 system, as well as the investigational Essure 505 device. Other areas of research publications include therapies for abnormal uterine bleeding, post-partum sentinel events (retained surgical items), and female sexual health.

Dr. Chapa has served as a peer reviewer for the American Journal of Obstetrics and Gynecology and the Journal of Surgical Case Reports. Additionally, he has served as a medical research consultant to Johnson & Johnson/Ethicon, Bayer Healthcare, Smith&Nephew, Inc., and Cooper Surgical. From 2007-2012, Dr Chapa authored aspects of the professional education content for obstetricians and gynecologists for these medical corporations.

Dr Chapa has taught as an invited physician-faculty member in South Africa, Israel, the European Union, The Netherlands, Norway, Ireland, Chile, Columbia, and Canada due to his unique lecture style and passion for evidence based learning.

education and training

Parkland Memorial Hospital - (Dallas, Texas, United States), Medical Residency 2000
M.D. in , The University of Texas Southwestern Medical Center - (Dallas, Texas, United States) 1996
B.A. in Biology, The University of Texas at Austin - (Austin, Texas, United States) 1992

selected publications

Academic Articles39

Downing, N. R., Avshman, E., Valentine, J. L., Johnson, L. M., & Chapa, H. (2023). Forensic Nurses' Understanding of Emergency Contraception Mechanisms: Implications for Access to Emergency Contraception.. Journal of Forensic Nursing. Publish Ahead of Print,
Tadjali, A., Smithhart, M., Pope, R., & Chapa, H. (2023). Ketamine Therapy in an Adolescent Patient at 35 Weeks of Gestation With Status Asthmaticus. Journal of Clinical Gynecology and Obstetrics. 12(1), 24-27.
Chapa, H. O., Hagar, C., Tadjali, A., & Perli, E. (2023). Rh-Isoimmunization in a Primigravida Skydiver. Journal of Clinical Gynecology and Obstetrics. 12(1), 15-18.
Chapa, H., Hagar, C., & Rueda Chavez, E. (2023). Staphylococcus aureus as Pelvic Inflammatory Disease and Tubo-Ovarian Abscess Pathogen. Journal of Clinical Gynecology and Obstetrics. 12(1), 28-31.
Chapa, H., Dickey, D., Milman, R., Hagar, C., & Kintzer, J. (2022). A Novel Curricular Design Exposing Clinical Medical Students to the Hidden Curriculum.. Medical Science Educator. 32(1), 17-19.
Chapa, H. O., Fish, J. T., Hagar, C., & Wilson, T. (2020). Prevalence of female sexual dysfunction among women attending college presenting for gynecological care at a university student health center.. Journal of American College Health. 68(1), 52-60.

SDG 3
Chapa, H. O., Geddie, S. G., & Flores, R. (2017). Metastatic neuroblastoma diagnosed on prenatal sonographic examination performed for decreased fetal movement.. Journal of Clinical Ultrasound. 45(8), 502-506.

SDG 3
Chapa, H. O., Ramirez, A., & Dawson, D. (2017). Etonogestrel contraceptive implant-associated secondary anorgasmia.. Contraception. 96(4), 254-256.
Chapa, H. O., Dawson, D., Brading, K., Hodnett, M., Zimmermann, R., & Teke, M. (2016). Non-Sexual Pelvic Inflammatory Disease in a Virginal Patient Resulting in Catatonic Conversion Reaction. Journal of Gynecologic Surgery. 32(5), 306-308.

SDG 3
Chapa, H. O., & Venegas, G. (2015). Vaginoscopy compared to traditional hysteroscopy for hysteroscopic sterilization. A randomized trial.. 60(1-2), 43-47.
Roy, S., Carlton, R., Weisberg, M., Clark, R., Migliaccio-Walle, K., & Chapa, H. (2015). Economic Impact of the Use of an Absorbable Adhesion Barrier in Preventing Adhesions Following Open Gynecologic Surgeries.. Journal of Long-Term Effects of Medical Implants. 25(3), 245-252.
Chapa, H. O., & Venegas, G. (2014). Hysteroscopic Sterilization Outcomes in Uncontrolled Diabetes Mellitus Patients: A Retrospective Cohort Review. 21(6), s104-s105.
Chapa, H. O. (2014). Re: Incidence of de Novo Pelvic Pain After Radiofrequency or Thermal Balloon Global Endometrial Ablation Therapy. Journal of Gynecologic Surgery. 30(4), 254-254.
Chapa, H., & Venegas. (2013). Maternal morbidity at first repeat cesarean: a sub-analysis of Interceed barrier placed at primary cesarean section. Open Access Surgery. Volume 6, 7-12.
Chapa, H., & Venegas. (2013). Confirmation test for hysteroscopic sterilization: a descriptive study of patient tolerability and impressions. Volume 7, 269-274.
Chapa, H. O., & Venegas, G. (2012). Preprocedure patient preferences and attitudes toward permanent contraceptive options.. 6, 331-336.
Chapa, H., & Venegas. (2012). A novel medical protocol to treat uterotubal spasm during Essure hysteroscopic sterilization: a pilot study. Open Access Journal of Contraception. Volume 3, 27-30.
Chapa, H. O., Akerman, A., & Akerman, A. (2012). Clinical Outcomes after Hysteroscopic Sterilization Using Radiofrequency and Silicone Matrix Implants: A Cohort Review. 19(6), s115-S115.
Chapa, H. O., Antonetti, A. G., & Bakker, K. (2012). Essure Sterilization in Patients with History of Pelvic Inflammatory Disease and Hydrosalpinges: An Analysis on Feasibility and Clinical Outcomes. Journal of Gynecologic Surgery. 28(5), 343-346.

SDG 3
Chapa, H. O., & Waters, H. C. (2012). Hospital Cost Savings Associated with the Use of an Adhesion Barrier During Cesarean Delivery. Journal of Gynecologic Surgery. 28(3), 207-211.
Chapa, H. O., Antonetti, A. G., & Sandate, J. (2012). Office Versus Hospital Based Essure Procedure: Pareto Principle in Action. Journal of Gynecologic Surgery. 28(1), 16-19.
Chapa, H. O. (2012). Patient Sequelae and Accrued Health Care Costs from Intra-Abdominal/Pelvic Adhesions. Journal of Gynecologic Surgery. 28(2), 121-126.

SDG 3
Chapa, H. O., Venegas, G., Antonetti, A. G., Van Duyne, C. P., Sandate, J., & Bakker, K. (2012). Three-Year Prospective Menstrual and Dysmenorrhea Outcomes after ThermachoiceIII in-Office Therapy. Journal of Gynecologic Surgery. 28(5), 350-354.
Chapa, H. O., Venegas, G., Vanduyne, C. P., Antonetti, A. G., Sandate, J. P., & Silver, L. (2011). Peritoneal adhesion prevention at cesarean section: an analysis of the effectiveness of an absorbable adhesion barrier.. 56(3-4), 103-109.
Chapa, H. O., & Bakker, K. (2011). Essure Hysteroscopic Sterilization in Patients with Intrauterine Device In Situ: Feasibility and Outcome Evaluation. 18(6), s83-S83.
Chapa, H. O., Bakker, K., Sandate, J., Silver, L., & Antonetti, A. G. (2011). Essure Sterilization with Sonographic Confirmation Test: Protocol Description and Clinical Outcomes Using Ultrasound as an Essure Confirmation Test. Journal of Gynecologic Surgery. 27(2), 57-62.
Chapa, H., Antonetti, A., Sandate, J., Bakker, K., & Silver, L. (2011). Incidence of de Novo Pelvic Pain After Radiofrequency or Thermal Balloon Global Endometrial Ablation Therapy. Journal of Gynecologic Surgery. 27(4), 203-207.
Chapa, H. O., Venegas, G., & Antonetti, A. G. (2011). One patient, two uteri, two endometrial ablations: case report of thermal balloon ablation in uterine didelphys.. Fertility and Sterility. 95(6), 2123.e5-2123.e7.
Chapa, H. O., & Venegas, G. (2011). Thermachoice III Endometrial Ablation: A Randomized, Double Blind Placebo Controlled Trial of Lower Uterine Block Anesthesia as Post-Operative Pain Management. 18(6), s127-s128.
Chapa, H. O., Sandate, J., Antonetti, A. G., & Bakker, K. (2011). Thermal Balloon Endometrial Ablation in Patients with Prior Low Transverse Cesarean Section: Safety Analysis and Protocol Description. Journal of Gynecologic Surgery. 27(2), 63-66.
Chapa, H. O., Antonetti, A. G., Sandate, J., & Silver, L. (2010). Emergent thermal balloon ablation for acute uterine hemorrhage: a report of 2 cases.. 55(11-12), 511-513.
Chapa, H. O., Antonetti, A. G., & Bakker, K. (2010). Ketorolac-mepivacaine lower uterine block for in-office endometrial ablation: a randomized, controlled trial.. 55(11-12), 464-468.
Chapa, H. O., Venegas, G., VanDuyne, C. P., Suvunrungsi, L., Antonetti, A. G., & Sandate, J. (2010). In-office thermachoice III ablation: a comparison of two anesthetic techniques.. 69(2), 140-144.
Chapa, H. O., Antonetti, A. G., Sandate, J. P., Bakker, K., & Silver, L. (2010). Endometrial Ablation and Prior Cesarean History: A Subanalysis on Patient Safety. 17(6), s75-s76.
Chapa, H. O., Antonetti, A. G., Venegas, G., Sandate, J., & VanDuyne, C. P. (2010). Menstrual and Dysmenorrhea Outcomes After Thermachoice III: A 2-Year Prospective Study. Journal of Gynecologic Surgery. 26(4), 233-236.
Chapa, H. O., & Sbarra, M. A. (2010). The Paucity of Information on Adhesions After Cesarean Delivery. Journal of Gynecologic Surgery. 26(4), 255-260.
Chapa, H. O., Venegas, G., Antonetti, A. G., Van Duyne, C. P., Sandate, J., & Bakker, K. (2009). In-office endometrial ablation using a third-generation uterine balloon therapy system: 12-month prospective follow-up on menstrual patterns and dysmenorrhea impact.. 54(11-12), 678-684.
Chapa, H. O., Venegas, G., Antonetti, A. G., Van Duyne, C. P., Sandate, J., & Bakker, K. (2009). In-office endometrial ablation and clinical correlation of reduced menstrual blood loss and effects on dysmenorrhea and premenstrual symptomatology.. Journal of Reproductive Medicine: for the obstetrician and gynecologist. 54(4), 232-238.
Chapa, H. O. (2008). Utility of in-office endometrial ablation: a prospective cohort study of endometrial ablation under local anesthesia.. Journal of Reproductive Medicine: for the obstetrician and gynecologist. 53(11), 827-831.

Chapters1

Thomas, A., Li, Y., Kaunas, C. L., Newcomb, M., Carrino, G. E., Greenwood, L. D., ... Chapa, H. O. (2022). Implementation of a Digital Live-Action Gaming Experience for Interprofessional Learning and Training. Global Perspectives on Educational Innovations for Emergency Situations. 199-207. Springer Nature.