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Ramen H. Chmait, MD

TitleAssociate Professor of Obstetrics & Gynecology (Clinical Scholar)
InstitutionUniversity of Southern California
DepartmentObstetrics & Gynecology
AddressIRD 206 2020 Zonal Ave
Off Campus
Los Angeles CA 90033
Phone+1 323 226 3306
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    Other Positions
    TitleDirector of Fetal Surgery Program


    Collapse Biography 
    Collapse 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

    Collapse Overview 
    Collapse 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.


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    Collapse 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.
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    1. Chon AH, Stein JE, Gerstenfeld T, Wang L, Vazquez WD, Chmait RH. The Use of Fetal Bronchoscopy in the Diagnosis and Management of a Suspected Obstructive Lung Mass. AJP Rep. 2018 Jul; 8(3):e195-e200. PMID: 30258699.
      View in: PubMed
    2. Bar-Cohen Y, Silka MJ, Hill AC, Pruetz JD, Chmait RH, Zhou L, Rabin SM, Norekyan V, Loeb GE. Minimally Invasive Implantation of a Micropacemaker Into the Pericardial Space. Circ Arrhythm Electrophysiol. 2018 Jul; 11(7):e006307. PMID: 29945929.
      View in: PubMed
    3. Schrager S, Chmait R, Vanderbilt DL. Response to Commentary by Saeid Safiri et al. J Matern Fetal Neonatal Med. 2018 Jun 03; 1-21. PMID: 29860913.
      View in: PubMed
    4. Hardley MT, Chon AH, Mestman J, Nguyen CT, Geffner ME, Chmait RH. Iodine-Induced Fetal Hypothyroidism: Diagnosis and Treatment with Intra-Amniotic Levothyroxine. Horm Res Paediatr. 2018 May 23; 1-5. PMID: 29791909.
      View in: PubMed
    5. Chon AH, Korst LM, Abdel-Sattar M, Llanes A, Ouzounian JG, Chmait RH. Types II and III congenital pulmonary airway malformation with hydrops treated in utero with percutaneous sclerotherapy. Prenat Diagn. 2018 Apr 17. PMID: 29665020.
      View in: PubMed
    6. Chmait RH, Chon AH, Anselmo D, Vanderbilt DL, Townsend J, Julian-Wang B, Don D. In utero Fetal Intubation for a Large Neck Mass: A Minimally Invasive EXIT Option. Fetal Diagn Ther. 2018 Apr 11. PMID: 29642057.
      View in: PubMed
    7. Aboudiab MS, Chon AH, Korst LM, Llanes A, Ouzounian JG, Chmait RH. Management of twin-twin transfusion syndrome with an extremely short cervix. J Obstet Gynaecol. 2018 Apr; 38(3):359-362. PMID: 29374983.
      View in: PubMed
    8. Chon AH, Mamey MR, Schrager SM, Vanderbilt DL, Chmait RH. The relationship between preoperative fetal head circumference and 2-year cognitive performance after laser surgery for twin-twin transfusion syndrome. Prenat Diagn. 2018 Feb; 38(3):173-178. PMID: 29314091.
      View in: PubMed
    9. Chmait RH, Chon AH, Korst LM, Llanes A, Kontopoulos EV, Quintero RA. Risks of Preterm Premature Rupture of Membranes and Preterm Birth Post Fetoscopy Based on Location of Trocar Insertion Site. Am J Perinatol. 2018 Jan 10. PMID: 29320800.
      View in: PubMed
    10. Abdel-Sattar M, Chon AH, Llanes A, Korst LM, Ouzounian JG, Chmait RH. Comparison of umbilical cord occlusion methods: Radiofrequency ablation versus laser photocoagulation. Prenat Diagn. 2018 Jan; 38(2):110-116. PMID: 29239485.
      View in: PubMed
    11. Uquillas KR, Aboudiab MS, Korst LM, Llanes A, Grubbs BH, Chmait RH. Middle Cerebral Artery Doppler Changes following Fetal Transfusion Performed with and without Fetal Anesthesia. Am J Perinatol. 2018 Jun; 35(7):682-687. PMID: 29228401.
      View in: PubMed
    12. H Chon A, Takeda MR, Felix JC, Chmait RH. A Complication of Percutaneous Sclerotherapy for Congenital Pulmonary Airway Malformation: Intravascular Injection and Cardiac Necrosis. Fetal Pediatr Pathol. 2017 Dec; 36(6):437-444. PMID: 29206544.
      View in: PubMed
    13. Gordon BJ, Chon AH, Korst LM, Llanes A, Miller DA, Chmait RH. Incidental Septostomy after Laser Surgery for Twin-Twin Transfusion Syndrome: Perinatal Outcomes and Antenatal Management. Fetal Diagn Ther. 2017 Dec 05. PMID: 29207382.
      View in: PubMed
    14. Chon AH, Korst LM, Grubbs BH, Kontopoulos EV, Quintero RA, Chmait RH. Risk factors for fetomaternal bleeding after laser therapy for twin-twin transfusion syndrome. Prenat Diagn. 2017 Dec; 37(12):1232-1237. PMID: 29071724.
      View in: PubMed
    15. Chon AH, Korst LM, Assaf RD, Llanes A, Ouzounian JG, Chmait RH. Midtrimester isolated oligohydramnios in monochorionic diamniotic multiple gestations. J Matern Fetal Neonatal Med. 2017 Oct 12; 1-7. PMID: 28965437.
      View in: PubMed
    16. Uquillas KR, Grubbs BH, Prosper AE, Chmait RH, Grant EG, Walker DK. Doppler US in the Evaluation of Fetal Growth and Perinatal Health. Radiographics. 2017 Oct; 37(6):1831-1838. PMID: 29019748.
      View in: PubMed
    17. Chmait RH, Chon AH, Schrager SM, Llanes A, Hamilton AH, Vanderbilt DL. Neonatal cerebral lesions predict 2-year neurodevelopmental impairment in children treated with laser surgery for twin-twin transfusion syndrome. J Matern Fetal Neonatal Med. 2017 Sep 06; 1-5. PMID: 28835143.
      View in: PubMed
    18. Han M, Afshar Y, Chon AH, Scibetta E, Rao R, Chmait RH. Pseudoamniotic Band Syndrome Post Fetal Thoracoamniotic Shunting for Bilateral Hydrothorax. Fetal Pediatr Pathol. 2017 Aug; 36(4):311-318. PMID: 28453379.
      View in: PubMed
    19. 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 Aug; 36(8):1595-1605. PMID: 28370096.
      View in: PubMed
    20. 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. 2018 Apr; 31(8):1085-1091. PMID: 28320252.
      View in: PubMed
    21. 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 04; 11(2):336-346. PMID: 28212097.
      View in: PubMed
    22. 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 Mar; 8(1):96-105. PMID: 28070867.
      View in: PubMed
    23. 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. 2017; 42(1):17-27. PMID: 27603215.
      View in: PubMed
    24. 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. 2017; 42(1):9-16. PMID: 27577884.
      View in: PubMed
    25. 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. 2017 Jun; 30(11):1349-1354. PMID: 27686840.
      View in: PubMed
    26. Quintero RA, Kontopoulos E, Chmait RH. Laser Treatment of Twin-to-Twin Transfusion Syndrome. Twin Res Hum Genet. 2016 06; 19(3):197-206. PMID: 27203606.
      View in: PubMed
    27. Kontopoulos E, Chmait RH, Quintero RA. Twin-to-Twin Transfusion Syndrome: Definition, Staging, and Ultrasound Assessment. Twin Res Hum Genet. 2016 06; 19(3):175-83. PMID: 27203605.
      View in: PubMed
    28. 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. PMID: 27021067.
      View in: PubMed
    29. 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. 2017; 41(3):234-236. PMID: 26982014.
      View in: PubMed
    30. 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. PMID: 26784929.
      View in: PubMed
    31. 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. PMID: 26515250.
      View in: PubMed
    32. 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. PMID: 26386383.
      View in: PubMed
    33. 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. PMID: 26364515.
      View in: PubMed
    34. 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. PMID: 26205597.
      View in: PubMed
    35. 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. PMID: 26067899.
      View in: PubMed
    36. 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. PMID: 26003061; PMCID: PMC4556589.
    37. 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. PMID: 25911718.
      View in: PubMed
    38. 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. PMID: 25816785.
      View in: PubMed
    39. 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. PMID: 25778431; PMCID: PMC4485563.
    40. 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. PMID: 25721425.
      View in: PubMed
    41. 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. PMID: 25184748.
      View in: PubMed
    42. 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. PMID: 25138968.
      View in: PubMed
    43. 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. PMID: 25116001.
      View in: PubMed
    44. 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. PMID: 24958400.
      View in: PubMed
    45. 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. PMID: 24941233.
      View in: PubMed
    46. 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. PMID: 24849000.
      View in: PubMed
    47. Chmait RH, Kontopoulos EV, Quintero RA. Sequential laser surgery for twin-twin transfusion syndrome. Am J Perinatol. 2014 Sep; 31 Suppl 1:S13-8. PMID: 24936936.
      View in: PubMed
    48. 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. PMID: 24858201.
      View in: PubMed
    49. 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. PMID: 24681290; PMCID: PMC4175130.
    50. 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. PMID: 24299030.
      View in: PubMed
    51. Zhou L, Vest AN, Chmait RH, Bar-Cohen Y, Pruetz J, Silka M, Zheng K, Peck R, Loeb GE. A percutaneously implantable fetal pacemaker. Conf Proc IEEE Eng Med Biol Soc. 2014; 2014:4459-63. PMID: 25570982; PMCID: PMC4346192.
    52. 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. PMID: 23747839.
      View in: PubMed
    53. 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. PMID: 23703979.
      View in: PubMed
    54. Laser treatment of twin-twin transfusion syndrome: what do the data really show? Am J Obstet Gynecol. 2013 Aug; 209(2):157-8. PMID: 23524169.
      View in: PubMed
    55. 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. PMID: 23344412.
      View in: PubMed
    56. 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. PMID: 23046345.
      View in: PubMed
    57. 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. PMID: 23021698; PMCID: PMC3462319.
    58. 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. PMID: 22937816.
      View in: PubMed
    59. 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. PMID: 22855119; PMCID: PMC3524376.
    60. 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. PMID: 22631591.
      View in: PubMed
    61. 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.e1-10. PMID: 22840724.
      View in: PubMed
    62. 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. PMID: 22532554; PMCID: PMC3959766.
    63. 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. PMID: 22441911.
      View in: PubMed
    64. 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. PMID: 22487644.
      View in: PubMed
    65. 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. PMID: 22354268.
      View in: PubMed
    66. 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. PMID: 23367231; PMCID: PMC4106143.
    67. 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. PMID: 23367442; PMCID: PMC4355015.
    68. 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. PMID: 22086270.
      View in: PubMed
    69. 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. PMID: 22015883.
      View in: PubMed
    70. 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. PMID: 22017664.
      View in: PubMed
    71. 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. PMID: 21944224.
      View in: PubMed
    72. 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. PMID: 21744364.
      View in: PubMed
    73. Solt I, Chmait RH. Fetoscopic documentation of meconium passage at 19 weeks' gestation. Clin Gastroenterol Hepatol. 2011 Nov; 9(11):e120. PMID: 21723234.
      View in: PubMed
    74. 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. PMID: 21411051.
      View in: PubMed
    75. 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. PMID: 21529761.
      View in: PubMed
    76. Twin-to-twin transfusion syndrome (TTTS). J Perinat Med. 2011 Mar; 39(2):107-12. PMID: 21142846.
      View in: PubMed
    77. 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. PMID: 20876896.
      View in: PubMed
    78. 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. PMID: 20838031.
      View in: PubMed
    79. 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. PMID: 20664426.
      View in: PubMed
    80. 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. PMID: 19968590.
      View in: PubMed
    81. 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. PMID: 20593976.
      View in: PubMed
    82. 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. PMID: 20451248.
      View in: PubMed
    83. 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. PMID: 19637106.
      View in: PubMed
    84. 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. PMID: 19658042.
      View in: PubMed
    85. 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. PMID: 19941443.
      View in: PubMed
    86. Rossi AC, Lee RH, Chmait RH. Emergency postpartum hysterectomy for uncontrolled postpartum bleeding: a systematic review. Obstet Gynecol. 2010 Mar; 115(3):637-44. PMID: 20177297.
      View in: PubMed
    87. 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. PMID: 20090293.
      View in: PubMed
    88. 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. PMID: 20334482.
      View in: PubMed
    89. 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. PMID: 19626566.
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    90. Chmait R, Kontopoulos E, Quintero R. Fetoscopic management of complicated monochorionic twins. Clin Obstet Gynecol. 2009 Dec; 52(4):647-53. PMID: 20393415.
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    91. 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. PMID: 19643797.
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    92. 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. PMID: 19643796.
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    93. 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. PMID: 19389902.
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    94. 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. PMID: 19389906.
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    95. Quintero RA, Chmait R. The con trial. Am J Obstet Gynecol. 2009 Mar; 200(3):e14-5; author reply e15. PMID: 18992859.
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    96. 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. PMID: 18946095.
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    97. 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. PMID: 18667174.
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    98. 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. PMID: 18388818.
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    99. 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. PMID: 18295741.
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    100. 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. PMID: 17763279.
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    101. 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. PMID: 17437196.
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    102. 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. PMID: 16707082.
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    103. 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. PMID: 16580287.
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    104. 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. PMID: 16202736.
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    105. 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. PMID: 15152273.
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    106. 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. PMID: 12439490.
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    107. 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. PMID: 12388983.
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    108. 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. PMID: 12082471.
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    109. Chmait RH, Hull AD. Doppler ultrasonographic evaluation of twins discordant for Rh alloimmunization. Am J Obstet Gynecol. 2002 Jul; 187(1):250-1. PMID: 12114922.
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