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    Ramen H. Chmait, MD

    TitleAssociate Professor of Obstetrics & Gynecology (Clinical Scholar)
    SchoolKeck School of Medicine of USC
    DepartmentObstetrics & Gynecology
    AddressIRD 206
    Off Campus
    Los Angeles California 90089-9300
    Phone+1 323 226 3306
      Other Positions
      TitleDirector of Fetal Surgery Program


       Overview 
       Overview
      Ramen Chmait, MD is Assistant Professor of Clinical Obstetrics and Gynecology, Pediatrics, and Surgery at the University of Southern California’s Keck School of Medicine. Dr. Chmait has served as director of Los Angeles Fetal Therapy since 2006. The Los Angeles Fetal Therapy is a program within the CHLA-USC Institute for Maternal-Fetal Health. In this capacity he has provided surgical treatment to hundreds of unborn children. Dr. Chmait also directs a research program devoted to understanding fetal disease and investigating potential treatment modalities.


       Biography 
       Awards and Honors
      2011 - 2014U.S. News Top Doctors
      Fetal Hope2008Light of Hope Award
      UCSD Department of Reproductive Medicine2003Fellows Teaching Award
      Kaiser Permanente Los Angeles Medical Center 2000Resident Research Award

       ORNG Applications 
       Websites
       Featured Videos
       Required Scholarly Project Mentor

       Bibliographic 
       Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
      List All   |   Timeline
      1. Pruetz JD, Votava-Smith JK, Chmait HR, Korst LM, Llanes A, Chmait RH. Recipient Twin Circular Shunt Physiology Before Fetal Laser Surgery: Survival and Risks for Postnatal Right Ventricular Outflow Tract Obstruction. J Ultrasound Med. 2017 Apr 03..
        View in: PubMed
      2. Abdel-Sattar M, Chon A, Chen B, Burkhalter W, Chmait RH. Salvage of Necrotic-Appearing Limb after In Utero Endoscopic Lysis of Constriction Bands. AJP Rep. 2017 Apr; 7(2):e74-e78..
        View in: PubMed
      3. Chon AH, Chavira ER, Wilson ML, Ingles SA, Llanes A, Chmait RH. The impact of laser surgery on angiogenic and anti-angiogenic factors in twin-twin transfusion syndrome: a prospective study. J Matern Fetal Neonatal Med. 2017 Mar 20; 1-21..
        View in: PubMed
      4. Vest AN, Zhou L, Huang X, Norekyan V, Bar-Cohen Y, Chmait RH, Loeb GE. Design and Testing of a Transcutaneous RF Recharging System for a Fetal Micropacemaker. IEEE Trans Biomed Circuits Syst. 2017 Feb 13..
        View in: PubMed
      5. Zhou L, Bar-Cohen Y, Peck RA, Chirikian GV, Harwin B, Chmait RH, Pruetz JD, Silka MJ, Loeb GE. Analytical Modeling for Computing Lead Stress in a Novel Epicardial Micropacemaker. Cardiovasc Eng Technol. 2017 Jan 09..
        View in: PubMed
      6. Chon AH, de Oliveira GH, Lemley KV, Korst LM, Assaf RD, Chmait RH. Fetal Serum ß2-Microglobulin and Postnatal Renal Function in Lower Urinary Tract Obstruction Treated with Vesicoamniotic Shunt. Fetal Diagn Ther. 2016 Sep 08..
        View in: PubMed
      7. King JR, Conturie CL, Ouzounian JG, Korst LM, Llanes A, Chmait RH. Umbilical Cord Occlusion via Laser Coagulation in Monochorionic Multifetal Gestations before and after 20 Weeks of Gestation. Fetal Diagn Ther. 2016 Aug 31..
        View in: PubMed
      8. Chmait RH, Kontopoulos EV, Chon AH, Korst LM, Llanes A, Quintero RA. Amniopatch treatment of iatrogenic preterm premature rupture of membranes (iPPROM) after fetoscopic laser surgery for twin-twin transfusion syndrome. J Matern Fetal Neonatal Med. 2016 Aug 10; 1-6..
        View in: PubMed
      9. Pedreira DA, Reece EA, Chmait RH, Kontopoulos EV, Quintero RA. Fetoscopic repair of spina bifida: safer and better? Ultrasound Obstet Gynecol. 2016 Aug; 48(2):141-7..
        View in: PubMed
      10. Kontopoulos E, Chmait RH, Quintero RA. Twin-to-Twin Transfusion Syndrome: Definition, Staging, and Ultrasound Assessment. Twin Res Hum Genet. 2016 Jun; 19(3):175-83..
        View in: PubMed
      11. Quintero RA, Kontopoulos E, Chmait RH. Laser Treatment of Twin-to-Twin Transfusion Syndrome. Twin Res Hum Genet. 2016 Jun; 19(3):197-206..
        View in: PubMed
      12. Zhou L, Vest AN, Peck RA, Sredl JP, Huang X, Bar-Cohen Y, Silka MJ, Pruetz JD, Chmait RH, Loeb GE. Minimally invasive implantable fetal micropacemaker: mechanical testing and technical refinements. Med Biol Eng Comput. 2016 Dec; 54(12):1819-1830..
        View in: PubMed
      13. Votava-Smith JK, Pitukcheewanont P, Randolph LM, Chmait RH. Generalized Arterial Calcification in a Recipient Twin: Discordant Fetal Hemodynamics Result in Differing Phenotypes in Monozygotic Twins with an ABCC6 Mutation. Fetal Diagn Ther. 2016 Mar 17..
        View in: PubMed
      14. Van Winden KR, Quintero RA, Kontopoulos EV, Korst LM, Llanes A, Chmait RH. Decreased Total Placental Mass Found in Twin-Twin Transfusion Syndrome Gestations with Selective Growth Restriction. Fetal Diagn Ther. 2016; 40(2):116-22..
        View in: PubMed
      15. Agarwal R, Thornton ME, Fonteh AN, Harrington MG, Chmait RH, Grubbs BH. Amniotic fluid levels of phospholipase A2 in fetal rats with retinoic acid induced myelomeningocele: the potential "second hit" in neurologic damage. J Matern Fetal Neonatal Med. 2016 Sep; 29(18):3003-8..
        View in: PubMed
      16. Chmait RH, Chon AH, Schrager SM, Llanes A, Hamilton A, Vanderbilt DL. Fetal brain-sparing after laser surgery for twin-twin transfusion syndrome appears associated with two-year neurodevelopmental outcomes. Prenat Diagn. 2016 Jan; 36(1):63-7..
        View in: PubMed
      17. Pedreira DA, Zanon N, Nishikuni K, Moreira de Sá RA, Acacio GL, Chmait RH, Kontopoulos EV, Quintero RA. Endoscopic surgery for the antenatal treatment of myelomeningocele: the CECAM trial. Am J Obstet Gynecol. 2016 Jan; 214(1):111.e1-111.e11..
        View in: PubMed
      18. Chmait RH, Chon AH, Schrager SM, Kontopoulos EV, Quintero RA, Vanderbilt DL. Donor catch-up growth after laser surgery for twin-twin transfusion syndrome. Early Hum Dev. 2015 Dec; 91(12):751-4..
        View in: PubMed
      19. Moon-Grady AJ, Morris SA, Belfort M, Chmait R, Dangel J, Devlieger R, Emery S, Frommelt M, Galindo A, Gelehrter S, Gembruch U, Grinenco S, Habli M, Herberg U, Jaeggi E, Kilby M, Kontopoulos E, Marantz P, Miller O, Otaño L, Pedra C, Pedra S, Pruetz J, Quintero R, Ryan G, Sharland G, Simpson J, Vlastos E, Tworetzky W, Wilkins-Haug L, Oepkes D. International Fetal Cardiac Intervention Registry: A Worldwide Collaborative Description and Preliminary Outcomes. J Am Coll Cardiol. 2015 Jul 28; 66(4):388-99..
        View in: PubMed
      20. Chmait RH, Kontopoulos EV, Jackson M, Horenstein J, Timor-Tritsch I, Quintero RA. Selective Reduction Using Intravascular Potassium Chloride Injection after Laser Surgery for Twin-Twin Transfusion Syndrome. Fetal Diagn Ther. 2016; 39(4):306-10..
        View in: PubMed
      21. Pruetz JD, Schrager SM, Wang TV, Llanes A, Chmait RH, Vanderbilt DL. Blood pressure evaluation in children treated with laser surgery for twin-twin transfusion syndrome at 2-year follow-up. Am J Obstet Gynecol. 2015 Sep; 213(3):417.e1-7..
        View in: PubMed
      22. Patel S, Quintero RA, Kontopoulos EV, Korst LM, Llanes A, Chmait RH. Abnormal umbilical artery Doppler findings in the recipient twin before laser surgery for twin-twin transfusion syndrome. J Ultrasound Med. 2015 May; 34(5):843-6..
        View in: PubMed
      23. Kontopoulos E, Quintero R, Barrett J, Chmait R. Which twin is which? A proposed solution for the labeling of twins at birth. Am J Obstet Gynecol. 2015 Aug; 213(2):245-6..
        View in: PubMed
      24. Bar-Cohen Y, Loeb GE, Pruetz JD, Silka MJ, Guerra C, Vest AN, Zhou L, Chmait RH. Preclinical testing and optimization of a novel fetal micropacemaker. Heart Rhythm. 2015 Jul; 12(7):1683-90..
        View in: PubMed
      25. Peeters SH, Akkermans J, Westra M, Lopriore E, Middeldorp JM, Klumper FJ, Lewi L, Devlieger R, Deprest J, Kontopoulos EV, Quintero R, Chmait RH, Smoleniec JS, Otaño L, Oepkes D. Identification of essential steps in laser procedure for twin-twin transfusion syndrome using the Delphi methodology: SILICONE study. Ultrasound Obstet Gynecol. 2015 Apr; 45(4):439-46..
        View in: PubMed
      26. Van Winden KR, Quintero RA, Kontopoulos EV, Korst LM, Llanes A, Chmait RH. Pre-Operative Twin Anemia/Polycythemia in the Setting of Twin-Twin Transfusion Syndrome (TTTS). Fetal Diagn Ther. 2015; 37(4):274-80..
        View in: PubMed
      27. Van Winden KR, Quintero RA, Kontopoulos EV, Korst LM, Llanes A, Chmait RH. Perinatal survival in cases of twin-twin transfusion syndrome complicated by selective intrauterine growth restriction. J Matern Fetal Neonatal Med. 2015 Sep; 28(13):1549-53..
        View in: PubMed
      28. Abdel-Sattar M, Platt LD, DeVore G, Porto M, Benirschke K, Chmait RH. Treatment of Complicated Spontaneous Twin Anemia-Polycythemia Sequence via Fetoscopic Laser Ablation of the Vascular Communications. Fetal Diagn Ther. 2015; 38(3):233-7..
        View in: PubMed
      29. Chmait RH, Baskin JL, Carson S, Randolph LM, Hamilton A. Treatment of alpha(0)-thalassemia (--(SEA)/--(SEA)) via serial fetal and post-natal transfusions: Can early fetal intervention improve outcomes? Hematology. 2015 May; 20(4):217-22..
        View in: PubMed
      30. A percutaneously implantable fetal pacemaker. Conf Proc IEEE Eng Med Biol Soc. 2014 Aug; 2014:4459-63..
        View in: PubMed
      31. Chmait RH, Kontopoulos E, Quintero R. Dual twin survival after laser surgery for twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2014 Aug; 44(2):244..
        View in: PubMed
      32. Patel S, Korst LM, Llanes A, Lee RH, Ouzounian JG, Chmait RH. Chorioamniotic membrane separation over the cervical os ("moon sign") in twin-twin transfusion syndrome. J Ultrasound Med. 2014 Jul; 33(7):1147-54..
        View in: PubMed
      33. Jhun KM, Nassar P, Chen TS, Sardesai S, Chmait RH. Giant Chorioangioma Treated In Utero via Laser of Feeding Vessels with Subsequent Development of Multifocal Infantile Hemangiomas. Fetal Pediatr Pathol. 2015 Feb; 34(1):1-8..
        View in: PubMed
      34. Kunkle CM, Marchan J, Safadi S, Whitman S, Chmait RH. Chlorhexidine gluconate versus povidone iodine at cesarean delivery: a randomized controlled trial. J Matern Fetal Neonatal Med. 2015 Mar; 28(5):573-7..
        View in: PubMed
      35. Chmait RH, Kontopoulos EV, Quintero RA. Sequential laser surgery for twin-twin transfusion syndrome. Am J Perinatol. 2014 Sep; 31 Suppl 1:S13-8..
        View in: PubMed
      36. Chon AH, Korst LM, Llanes A, Miller DA, Ouzounian JG, Chmait RH. Midtrimester isolated polyhydramnios in monochorionic diamniotic multiple gestations. Am J Obstet Gynecol. 2014 Sep; 211(3):303.e1-5..
        View in: PubMed
      37. Vanderbilt DL, Schrager SM, Llanes A, Hamilton A, Seri I, Chmait RH. Predictors of 2-year cognitive performance after laser surgery for twin-twin transfusion syndrome. Am J Obstet Gynecol. 2014 Oct; 211(4):388.e1-7..
        View in: PubMed
      38. Pedreira DA, Zanon N, de Sá RA, Acacio GL, Ogeda E, Belem TM, Chmait RH, Kontopoulos E, Quintero RA. Fetoscopic single-layer repair of open spina bifida using a cellulose patch: preliminary clinical experience. J Matern Fetal Neonatal Med. 2014 Nov; 27(16):1613-9..
        View in: PubMed
      39. Johnston R, Shrivastava VK, Chmait RH. Term Vaginal Delivery following Fetoscopic Laser Photocoagulation of Type II Vasa Previa. Fetal Diagn Ther. 2014; 35(1):62-4..
        View in: PubMed
      40. Chmait RH, Korst LM, Llanes A, Mullin P, Lee RH, Ouzounian JG. Perioperative characteristics associated with preterm birth in twin-twin transfusion syndrome treated by laser surgery. Am J Obstet Gynecol. 2013 Sep; 209(3):264.e1-8..
        View in: PubMed
      41. Chen K, Chmait RH, Vanderbilt D, Wu S, Randolph L. Chimerism in monochorionic dizygotic twins: case study and review. Am J Med Genet A. 2013 Jul; 161A(7):1817-24..
        View in: PubMed
      42. Laser treatment of twin-twin transfusion syndrome: what do the data really show? Am J Obstet Gynecol. 2013 Aug; 209(2):157-8..
        View in: PubMed
      43. Rink BD, Gonik B, Chmait RH, O'Shaughnessy R. Maternal hemolysis after intravenous immunoglobulin treatment in fetal and neonatal alloimmune thrombocytopenia. Obstet Gynecol. 2013 Feb; 121(2 Pt 2 Suppl 1):471-3..
        View in: PubMed
      44. Quintero RA, Kontopoulos EV, Quintero LF, Landy DC, Gonzalez R, Chmait RH. The observed vs. expected lung-to-head ratio does not correct for the effect of gestational age on the lung-to-head ratio. J Matern Fetal Neonatal Med. 2013 Apr; 26(6):552-7..
        View in: PubMed
      45. Vanderbilt DL, Schrager SM, Llanes A, Chmait RH. Prevalence and risk factors of cerebral lesions in neonates after laser surgery for twin-twin transfusion syndrome. Am J Obstet Gynecol. 2012 Oct; 207(4):320.e1-6..
        View in: PubMed
      46. Grubbs BH, Korst LM, Llanes A, Chmait RH. Middle cerebral artery Doppler and hemoglobin changes immediately following fetal transfusion. J Matern Fetal Neonatal Med. 2013 Jan; 26(2):155-7..
        View in: PubMed
      47. Loeb GE, Zhou L, Zheng K, Nicholson A, Peck RA, Krishnan A, Silka M, Pruetz J, Chmait R, Bar-Cohen Y. Design and testing of a percutaneously implantable fetal pacemaker. Ann Biomed Eng. 2013 Jan; 41(1):17-27..
        View in: PubMed
      48. Sosa-Sosa C, Bermúdez C, Chmait RH, Kontopoulos E, Córdoba Y, Guevara-Zuloaga F, Steffensen T, Quintero RA. Intraluminal tracheal occlusion using a modified 8-mm Z-stent in a sheep model of left-sided congenital diaphragmatic hernia. J Matern Fetal Neonatal Med. 2012 Nov; 25(11):2346-53..
        View in: PubMed
      49. Schrey S, Huber A, Hecher K, Quintero R, Alkazaleh F, Moise KJ, Allbert JR, Schneider C, Palermo M, Yinon Y, Chmait RH, Windrim R, Ryan G. Vascular limb occlusion in twin-twin transfusion syndrome (TTTS): case series and literature review. Am J Obstet Gynecol. 2012 Aug; 207(2):131.e1-131.e10..
        View in: PubMed
      50. Shanske S, Naini A, Chmait RH, Akman HO, Mansukhani M, Lu J, Hirano M, DiMauro S. Mutation in an mtDNA protein-coding gene: prenatal diagnosis aided by fetal muscle biopsy. J Child Neurol. 2013 Feb; 28(2):264-8..
        View in: PubMed
      51. Joumblat N, Grubbs B, Chmait RH. Incidental fetoscopy during laparoscopy in pregnancy: management of perforation of the gravid uterus. Surg Laparosc Endosc Percutan Tech. 2012 Apr; 22(2):e76-8..
        View in: PubMed
      52. Patel S, Randolph LM, Benirschke K, Llanes A, Yedigarova L, Chmait RH. Prevalence of noncardiac structural anomalies in twin-twin transfusion syndrome. J Ultrasound Med. 2012 Apr; 31(4):555-60..
        View in: PubMed
      53. Lee FL, Said N, Grikscheit TC, Shin CE, Llanes A, Chmait RH. Treatment of Congenital Pulmonary Airway Malformation Induced Hydrops Fetalis via Percutaneous Sclerotherapy. Fetal Diagn Ther. 2012; 31(4):264-8..
        View in: PubMed
      54. Nicholson A, Chmait R, Bar-Cohen Y, Zheng K, Loeb GE. Percutaneously injectable fetal pacemaker: electronics, pacing thresholds, and power budget. Conf Proc IEEE Eng Med Biol Soc. 2012; 2012:5730-3..
        View in: PubMed
      55. Zhou L, Chmait R, Bar-Cohen Y, Peck RA, Loeb GE. Percutaneously injectable fetal pacemaker: electrodes, mechanical design and implantation. Conf Proc IEEE Eng Med Biol Soc. 2012; 2012:6600-3..
        View in: PubMed
      56. Jones K, Tierney K, Grubbs BH, Pruetz JD, Detterich J, Chmait RH. Fetoscopic Laser Photocoagulation of Feeding Vessels to a Large Placental Chorioangioma following Fetal Deterioration after Amnioreduction. Fetal Diagn Ther. 2012; 31(3):191-5..
        View in: PubMed
      57. Rossi AC, Vanderbilt D, Chmait RH. Neurodevelopmental outcomes after laser therapy for twin-twin transfusion syndrome: a systematic review and meta-analysis. Obstet Gynecol. 2011 Nov; 118(5):1145-50..
        View in: PubMed
      58. Assaf R, Llanes A, Chmait R. In Utero Release of Constriction Amniotic Bands via Blunt Dissection. Fetal Pediatr Pathol. 2012 Feb; 31(1):25-9..
        View in: PubMed
      59. Quintero RA, Quintero LF, Chmait R, Gómez Castro L, Korst LM, Fridman M, Kontopoulos EV. The quantitative lung index (QLI): a gestational age-independent sonographic predictor of fetal lung growth. Am J Obstet Gynecol. 2011 Dec; 205(6):544.e1-8..
        View in: PubMed
      60. Pruetz JD, Sklansky M, Detterich J, Korst LM, Llanes A, Chmait RH. Twin-twin transfusion syndrome treated with laser surgery: postnatal prevalence of congenital heart disease in surviving recipients and donors. Prenat Diagn. 2011 Oct; 31(10):973-7..
        View in: PubMed
      61. Solt I, Chmait RH. Fetoscopic documentation of meconium passage at 19 weeks' gestation. Clin Gastroenterol Hepatol. 2011 Nov; 9(11):e120..
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      62. Grubbs BH, Benirschke K, Korst LM, Llanes A, Yedigarova L, Chmait RH. Role of low placental share in twin-twin transfusion syndrome complicated by intrauterine growth restriction. Placenta. 2011 Aug; 32(8):616-8..
        View in: PubMed
      63. Chmait RH, Kontopoulos EV, Korst LM, Llanes A, Petisco I, Quintero RA. Stage-based outcomes of 682 consecutive cases of twin-twin transfusion syndrome treated with laser surgery: the USFetus experience. Am J Obstet Gynecol. 2011 May; 204(5):393.e1-6..
        View in: PubMed
      64. Chmait RH, Floyd R, Benirschke K. Duplicity: Sonography suggested a twin gestation was dichorionic-and monochorionic. Am J Obstet Gynecol. 2011 Jul; 205(1):87.e1-2..
        View in: PubMed
      65. Rossi AC, Mullin PM, Chmait RH. Neonatal outcomes of twins according to birth order, presentation and mode of delivery: a systematic review and meta-analysis. BJOG. 2011 Apr; 118(5):523-32..
        View in: PubMed
      66. Twin-to-twin transfusion syndrome (TTTS). J Perinat Med. 2011 Mar; 39(2):107-12..
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      67. Aghajanian P, Assaf SA, Korst LM, Miller DA, Chmait RH. Fetal middle cerebral artery Doppler fluctuations after laser surgery for twin-twin transfusion syndrome. J Perinatol. 2011 May; 31(5):368-72..
        View in: PubMed
      68. Assaf SA, Korst LM, Chmait RH. Normalization of amniotic fluid levels after fetoscopic laser surgery for twin-twin transfusion syndrome. J Ultrasound Med. 2010 Oct; 29(10):1431-6..
        View in: PubMed
      69. Pathak B, Quintero R, Kontopoulos E, Assaf S, Miller D, Chmait RH. Postoperative middle cerebral artery peak systolic velocity changes confirm physiological principles of the sequential laser technique for twin-twin transfusion syndrome. Fetal Diagn Ther. 2010; 28(3):140-4..
        View in: PubMed
      70. Assaf SA, Randolph LM, Benirschke K, Wu S, Samadi R, Chmait RH. Discordant blood chimerism in dizygotic monochorionic laser-treated twin-twin transfusion syndrome. Obstet Gynecol. 2010 Aug; 116 Suppl 2:483-5..
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      71. Quintero RA, Gomez Castro LA, Bermudez C, Chmait RH, Kontopoulos EV. In utero management of fetal lower urinary tract obstruction with a novel shunt: a landmark development in fetal therapy. J Matern Fetal Neonatal Med. 2010 Aug; 23(8):806-12..
        View in: PubMed
      72. Assaf SA, Benirschke K, Chmait RH. Spontaneous twin anemia-polycythemia sequence complicated by recipient placental vascular thrombosis and hydrops fetalis. J Matern Fetal Neonatal Med. 2011 Mar; 24(3):549-52..
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      73. Chmait RH, Assaf SA, Benirschke K. Residual vascular communications in twin-twin transfusion syndrome treated with sequential laser surgery: frequency and clinical implications. Placenta. 2010 Jul; 31(7):611-4..
        View in: PubMed
      74. Chmait RH, Kontopoulos E, Bornick PW, Maitino T, Quintero RA. Triplets with feto-fetal transfusion syndrome treated with laser ablation: the USFetus experience. J Matern Fetal Neonatal Med. 2010 May; 23(5):361-5..
        View in: PubMed
      75. Chmait RH, Chavira E, Kontopoulos EV, Quintero RA. Third trimester fetoscopic laser ablation of type II vasa previa. J Matern Fetal Neonatal Med. 2010 May; 23(5):459-62..
        View in: PubMed
      76. Quintero RA, Chmait RH, Bornick PW, Kontopoulos EV. Trocar-assisted selective laser photocoagulation of communicating vessels: a technique for the laser treatment of patients with twin-twin transfusion syndrome with inaccessible anterior placentas. J Matern Fetal Neonatal Med. 2010 Apr; 23(4):330-4..
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      77. Rossi AC, Lee RH, Chmait RH. Emergency postpartum hysterectomy for uncontrolled postpartum bleeding: a systematic review. Obstet Gynecol. 2010 Mar; 115(3):637-44..
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      78. Pathak B, Khan A, Assaf SA, Miller DA, Chmait RH. Amniopatch as a treatment for rupture of membranes following laser surgery for twin-twin transfusion syndrome. Fetal Diagn Ther. 2010; 27(3):134-7..
        View in: PubMed
      79. Quintero R, Kontopoulos EV, Barness E, Steffensen TS, Hilbelink D, Chmait R, Benirschke K, Bornick PW. Twin-twin transfusion syndrome in a dichorionic-monozygotic twin pregnancy: The end of a paradigm? Fetal Pediatr Pathol. 2010 Jan; 29(2):81-8..
        View in: PubMed
      80. Chmait RH, Khan A, Benirschke K, Miller D, Korst LM, Goodwin TM. Perinatal survival following preferential sequential selective laser surgery for twin-twin transfusion syndrome. J Matern Fetal Neonatal Med. 2010 Jan; 23(1):10-6..
        View in: PubMed
      81. Chmait R, Kontopoulos E, Quintero R. Fetoscopic management of complicated monochorionic twins. Clin Obstet Gynecol. 2009 Dec; 52(4):647-53..
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      82. Assaf SA, Khan A, Korst LM, Chmait RH. Fetal heart rate changes associated with sequential selective laser surgery for twin-twin transfusion syndrome. J Perinatol. 2010 Mar; 30(3):188-91..
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      83. Pruetz JD, Chmait RH, Sklansky MS. Complete right heart flow reversal: pathognomonic recipient twin circular shunt in twin-twin transfusion syndrome. J Ultrasound Med. 2009 Aug; 28(8):1101-6..
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      84. Pathak B, Benirschke K, Chmait RH. Umbilical artery hypoplasia in twin-twin transfusion syndrome complicated by discordant umbilical artery Doppler findings in the donor twin: a diagnostic dilemma. J Ultrasound Med. 2009 Aug; 28(8):1107-10..
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      85. Chavira ER, Khan A, Korst LM, Miller D, Goodwin TM, Chmait RH. Are patients with twin-twin transfusion syndrome and a very short cervix candidates for laser surgery? J Ultrasound Med. 2009 May; 28(5):633-9..
        View in: PubMed
      86. Chmait RH, Aghajanian P, Kontopoulos EV, Quintero RA. Prenatal diagnosis of spontaneous septostomy of the dividing membranes in complicated monochorionic diamniotic multiple gestations. J Ultrasound Med. 2009 May; 28(5):663-8..
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      87. Quintero RA, Chmait R. The con trial. Am J Obstet Gynecol. 2009 Mar; 200(3):e14-5; author reply e15..
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      88. Barseghyan K, Jackson HA, Chmait R, De Filippo RE, Miller DA. Complementary roles of sonography and magnetic resonance imaging in the assessment of fetal urinary tract anomalies. J Ultrasound Med. 2008 Nov; 27(11):1563-9..
        View in: PubMed
      89. Quintero RA, Chmait RH, Carver J, Bornick PW, Allen MH, Kontopoulos EV. In utero fetal oximetry via visible light spectroscopy in twin-twin transfusion syndrome. Am J Obstet Gynecol. 2008 Dec; 199(6):639.e1-4..
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      90. Chmait RH, Quintero RA. Operative fetoscopy in complicated monochorionic twins: current status and future direction. Curr Opin Obstet Gynecol. 2008 Apr; 20(2):169-74..
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      91. Chmait RH, Korst LM, Bornick PW, Allen MH, Quintero RA. Fetal growth after laser therapy for twin-twin transfusion syndrome. Am J Obstet Gynecol. 2008 Jul; 199(1):47.e1-6..
        View in: PubMed
      92. Quintero RA, Ishii K, Chmait RH, Bornick PW, Allen MH, Kontopoulos EV. Sequential selective laser photocoagulation of communicating vessels in twin-twin transfusion syndrome. J Matern Fetal Neonatal Med. 2007 Oct; 20(10):763-8..
        View in: PubMed
      93. Kontopoulos EV, Quintero RA, Chmait RH, Bornick PW, Russell Z, Allen MH. Percent absent end-diastolic velocity in the umbilical artery waveform as a predictor of intrauterine fetal demise of the donor twin after selective laser photocoagulation of communicating vessels in twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2007 Jul; 30(1):35-9..
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      94. Chmait RH, Rossi AC, Quintero RA. Paradoxical scalloped placenta with polyhydramnios in twin-twin transfusion syndrome. J Matern Fetal Neonatal Med. 2007 Jan; 20(1):29-32..
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      95. Chang YL, Chmait RH, Bornick PW, Allen MH, Quintero RA. The role of laser surgery in dissecting the etiology of absent or reverse end-diastolic velocity in the umbilical artery of the donor twin in twin-twin transfusion syndrome. Am J Obstet Gynecol. 2006 Aug; 195(2):478-83..
        View in: PubMed
      96. Quintero RA, Chmait RH, Murakoshi T, Pankrac Z, Swiatkowska M, Bornick PW, Allen MH. Surgical management of twin reversed arterial perfusion sequence. Am J Obstet Gynecol. 2006 Apr; 194(4):982-91..
        View in: PubMed
      97. Quintero RA, Huhta J, Suh E, Chmait R, Romero R, Angel J. In utero cardiac fetal surgery: laser atrial septotomy in the treatment of hypoplastic left heart syndrome with intact atrial septum. Am J Obstet Gynecol. 2005 Oct; 193(4):1424-8..
        View in: PubMed
      98. Chmait R, Dinise T, Moore T. Prospective observational study to establish predictors of glyburide success in women with gestational diabetes mellitus. J Perinatol. 2004 Oct; 24(10):617-22..
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      99. Ishii K, Chmait RH, Martínez JM, Nakata M, Quintero RA. Ultrasound assessment of venous blood flow before and after laser therapy: approach to understanding the pathophysiology of twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2004 Aug; 24(2):164-8..
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      100. Nakata M, Chmait RH, Quintero RA. Umbilical cord occlusion of the donor versus recipient fetus in twin-twin transfusion syndrome. Ultrasound Obstet Gynecol. 2004 May; 23(5):446-50..
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      101. Quintero RA, Chmait RH. The cocoon sign: a potential sonographic pitfall in the diagnosis of twin - twin transfusion syndrome. Ultrasound Obstet Gynecol. 2004 Jan; 23(1):38-41..
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      102. Daneshmand SS, Chmait RH, Moore TR, Bogic L. Preterm premature rupture of membranes: vascular endothelial growth factor and its association with histologic chorioamnionitis. Am J Obstet Gynecol. 2002 Nov; 187(5):1131-6..
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      103. Chmait RH, Pretorius DH, Hull AD. Nasal glioma. Ultrasound Obstet Gynecol. 2002 Oct; 20(4):417-8..
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      104. Chmait R, Pretorius D, Jones M, Hull A, James G, Nelson T, Moore T. Prenatal evaluation of facial clefts with two-dimensional and adjunctive three-dimensional ultrasonography: a prospective trial. Am J Obstet Gynecol. 2002 Oct; 187(4):946-9..
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      105. Chmait RH, Hull AD. Doppler ultrasonographic evaluation of twins discordant for Rh alloimmunization. Am J Obstet Gynecol. 2002 Jul; 187(1):250-1..
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      106. Chmait R, Franklin P, Spector SA, Hull AD. Protease inhibitors and decreased birth weight in HIV-infected pregnant women with impaired glucose tolerance. J Perinatol. 2002 Jul-Aug; 22(5):370-3..
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      107. Chmait RH, Meimin DL, Koo CH, Huffaker J. Hemophagocytic syndrome in pregnancy. Obstet Gynecol. 2000 Jun; 95(6 Pt 2):1022-4..
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