Ronald Lacro

Ronald Lacro, MD

Director, Cardiovascular Genetics Clinic; Associate in Cardiology, Boston Children's Hospital

Assistant Professor of Pediatrics - Harvard Medical School

  • Contact: 617-355-8794

  • Fax: 617-739-6282

"I consider it a distinct privilege to serve the patients and families that come to Boston Children’s, hearing and entering into their stories at some of the most profound moments in their lives."

Medical Services


  • Echocardiography
  • Cardiovascular Genetics
  • Marfan Syndrome
  • Williams Syndrome
  • Cardiology


  • Cardiology
  • Cardiovascular Program


  • Cardiovascular Genetics Program
  • Echocardiography
  • Non-Invasive Cardiac Imaging
  • Fetal Cardiology Program
To schedule an appointment: Call 617-355-8794 or Request an Appointment
Ronald Lacro

I grew up in Hawaii and attended college and medical school at Northwestern University in Evanston and Chicago, IL.  

I completed a residency in pediatrics as well as a fellowship in dysmorphology and genetics in San Diego, before moving to Boston for a fellowship in cardiology at Boston Children’s Hospital.  I joined the staff at Boston Children’s Hospital in 1991, specializing in cardiovascular genetics and echocardiography.

Boston has been my home since 1987, and I enjoy everything that the region has to offer, including the cardiology team at Boston Children’s Hospital.  I consider it a distinct privilege to serve the patients and families that come to Boston Children’s, hearing and entering into their stories at some of the most profound moments in their lives.

Experience and Education


Medical Degree

Northwestern University Medical School, 1982

Chicago, IL


University of California Medical Center, 1983

San Diego, CA


University of California Medical Center, 1985

San Diego, CA

Dysmorphology/Genetics Fellowship

University of California Medical Center, 1987

San Diego, CA

Fellowship - Cardiology

Boston Children's Hospital, 1991

Boston, MA


  • Medical Genetics, Pediatrics, Pediatric Cardiology

Professional History

Dr. Lacro is clinically trained in dysmorphology/clinical genetics as well as pediatric cardiology.  He directs the Cardiovascular Genetics Clinic and the Marfan Syndrome and Related Disorders Program, which provide cardiac and genetic services to patients and families with a variety of genetic conditions including Marfan syndrome, other connective tissue disorders, bicuspid aortic valve and other aortopathies, and Williams syndrome.  Dr. Lacro is on the staff of the Echocardiography Laboratory, which provides a full range of imaging studies including transesophageal and fetal examinations.  He was a Schwartz Center Fellow in Pastoral Care in 2002 and has an interest in spiritual assessment and spiritual care.  Research interests include pathogenesis of congenital cardiovascular malformations and management of patients with multiple malformation syndromes such as Marfan syndrome, other connective tissue disorders, and Williams syndrome.  Dr. Lacro was a principal investigator for a multicenter, randomized clinical trial sponsored by the Pediatric Heart Network and the National Heart, Lung, and Blood Institute of the NIH, comparing beta blocker therapy (atenolol) and angiotensin II receptor blocker therapy (losartan) in individuals with Marfan syndrome.


Publications powered by Harvard Catalyst Profiles
  1. Prakash A, Adlakha H, Rabideau N, Hass CJ, Morris SA, Geva T, Gauvreau K, Singh MN, Lacro RV. Response to Letters Regarding Article "Segmental Aortic Stiffness in Children and Young Adults With Connective Tissue Disorders: Relationships With Age, Aortic Size, Rate of Dilation, and Surgical Root Replacement". Circulation. 2016 Feb 16; 133(7):e405.
  2. Singh MN, Lacro RV. Recent Clinical Drug Trials Evidence in Marfan Syndrome and Clinical Implications. Can J Cardiol. 2016 Jan; 32(1):66-77.
  3. Prakash A, Adlakha H, Rabideau N, Hass CJ, Morris SA, Geva T, Gauvreau K, Singh MN, Lacro RV. Segmental Aortic Stiffness in Children and Young Adults With Connective Tissue Disorders: Relationships With Age, Aortic Size, Rate of Dilation, and Surgical Root Replacement. Circulation. 2015 Aug 18; 132(7):595-602.
  4. Proost D, Vandeweyer G, Meester JA, Salemink S, Kempers M, Ingram C, Peeters N, Saenen J, Vrints C, Lacro RV, Roden D, Wuyts W, Dietz HC, Mortier G, Loeys BL, Van Laer L. Performant Mutation Identification Using Targeted Next-Generation Sequencing of 14 Thoracic Aortic Aneurysm Genes. Hum Mutat. 2015 Aug; 36(8):808-14.
  5. Wooderchak-Donahue W, VanSant-Webb C, Tvrdik T, Plant P, Lewis T, Stocks J, Raney JA, Meyers L, Berg A, Rope AF, Yetman AT, Bleyl SB, Mesley R, Bull DA, Collins RT, Ojeda MM, Roberts A, Lacro R, Woerner A, Stoler J, Bayrak-Toydemir P. Clinical utility of a next generation sequencing panel assay for Marfan and Marfan-like syndromes featuring aortopathy. Am J Med Genet A. 2015 Aug; 167A(8):1747-57.
  6. Pierpont ME, Lacro RV. Children with Thoracic Aortic Aneurysm: Challenges in Diagnosis and Therapy. J Pediatr. 2015 Jul; 167(1):14-6.
  7. Lacro RV, Dietz HC, Mahony L. Atenolol versus Losartan in Marfan's Syndrome. N Engl J Med. 2015 Mar 5; 372(10):980-1.
  8. Pitcher A, Emberson J, Lacro RV, Sleeper LA, Stylianou M, Mahony L, Pearson GD, Groenink M, Mulder BJ, Zwinderman AH, De Backer J, De Paepe AM, Arbustini E, Erdem G, Jin XY, Flather MD, Mullen MJ, Child AH, Forteza A, Evangelista A, Chiu HH, Wu MH, Sandor G, Bhatt AB, Creager MA, Devereux RB, Loeys B, Forfar JC, Neubauer S, Watkins H, Boileau C, Jondeau G, Dietz HC, Baigent C. Design and rationale of a prospective, collaborative meta-analysis of all randomized controlled trials of angiotensin receptor antagonists in Marfan syndrome, based on individual patient data: A report from the Marfan Treatment Trialists' Collaboration. Am Heart J. 2015 May; 169(5):605-12.
  9. Quintero-Rivera F, Xi QJ, Keppler-Noreuil KM, Lee JH, Higgins AW, Anchan RM, Roberts AE, Seong IS, Fan X, Lage K, Lu LY, Tao J, Hu X, Berezney R, Gelb BD, Kamp A, Moskowitz IP, Lacro RV, Lu W, Morton CC, Gusella JF, Maas RL. MATR3 disruption in human and mouse associated with bicuspid aortic valve, aortic coarctation and patent ductus arteriosus. Hum Mol Genet. 2015 Apr 15; 24(8):2375-89.
  10. Lacro RV, Dietz HC, Sleeper LA, Yetman AT, Bradley TJ, Colan SD, Pearson GD, Selamet Tierney ES, Levine JC, Atz AM, Benson DW, Braverman AC, Chen S, De Backer J, Gelb BD, Grossfeld PD, Klein GL, Lai WW, Liou A, Loeys BL, Markham LW, Olson AK, Paridon SM, Pemberton VL, Pierpont ME, Pyeritz RE, Radojewski E, Roman MJ, Sharkey AM, Stylianou MP, Wechsler SB, Young LT, Mahony L. Atenolol versus losartan in children and young adults with Marfan's syndrome. N Engl J Med. 2014 Nov 27; 371(22):2061-71.
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  12. Reinstein E, Morris SA, Rimoin DL, Robertson SP, Lacro RV. Arterial tortuosity in patients with Filamin A- associated vascular aneurysms. Am J Med Genet A. 2014 Nov; 164A(11):2961-3.
  13. Prendiville TW, Gauvreau K, Tworog-Dube E, Patkin L, Kucherlapati RS, Roberts AE, Lacro RV. Cardiovascular disease in Noonan syndrome. Arch Dis Child. 2014 Jul; 99(7):629-34.
  14. Cunningham JW, McElhinney DB, Gauvreau K, Bergersen L, Lacro RV, Marshall AC, Smoot L, Lock JE. Outcomes after primary transcatheter therapy in infants and young children with severe bilateral peripheral pulmonary artery stenosis. Circ Cardiovasc Interv. 2013 Aug; 6(4):460-7.
  15. Selamet Tierney ES, Levine JC, Chen S, Bradley TJ, Pearson GD, Colan SD, Sleeper LA, Campbell MJ, Cohen MS, De Backer J, Guey LT, Heydarian H, Lai WW, Lewin MB, Marcus E, Mart CR, Pignatelli RH, Printz BF, Sharkey AM, Shirali GS, Srivastava S, Lacro RV. Echocardiographic methods, quality review, and measurement accuracy in a randomized multicenter clinical trial of Marfan syndrome. J Am Soc Echocardiogr. 2013 Jun; 26(6):657-66.
  16. Lacro RV, Guey LT, Dietz HC, Pearson GD, Yetman AT, Gelb BD, Loeys BL, Benson DW, Bradley TJ, De Backer J, Forbus GA, Klein GL, Lai WW, Levine JC, Lewin MB, Markham LW, Paridon SM, Pierpont ME, Radojewski E, Selamet Tierney ES, Sharkey AM, Wechsler SB, Mahony L. Characteristics of children and young adults with Marfan syndrome and aortic root dilation in a randomized trial comparing atenolol and losartan therapy. Am Heart J. 2013 May; 165(5):828-835.e3.
  17. Teekakirikul P, Milewicz DM, Miller DT, Lacro RV, Regalado ES, Rosales AM, Ryan DP, Toler TL, Lin AE. Thoracic aortic disease in two patients with juvenile polyposis syndrome and SMAD4 mutations. Am J Med Genet A. 2013 Jan; 161A(1):185-91.
  18. Fernandes S, Khairy P, Graham DA, Colan SD, Galvin TC, Sanders SP, Singh MN, Bhatt A, Lacro RV. Bicuspid aortic valve and associated aortic dilation in the young. Heart. 2012 Jul; 98(13):1014-9.
  19. McElhinney DB, Lacro RV, Gauvreau K, O'Brien CM, Yaroglu Kazanci S, Vogel M, Emani S, Brown DW. Dilation of the ascending aorta after balloon valvuloplasty for aortic stenosis during infancy and childhood. Am J Cardiol. 2012 Sep 1; 110(5):702-8.
  20. Prakash A, Lacro RV, Sleeper LA, Minich LL, Colan SD, McCrindle B, Covitz W, Golding F, Hlavacek AM, Levine JC, Cohen MS. Challenges in echocardiographic assessment of mitral regurgitation in children after repair of atrioventricular septal defect. Pediatr Cardiol. 2012 Feb; 33(2):205-14.
  21. Kaza AK, Colan SD, Jaggers J, Lu M, Atz AM, Sleeper LA, McCrindle BW, Lambert LM, Margossian R, Lacro RV, Richmond ME, Natarajan S, Minich LL. Surgical interventions for atrioventricular septal defect subtypes: the pediatric heart network experience. Ann Thorac Surg. 2011 Oct; 92(4):1468-75; discussion 1475.
  22. Baetens M, Van Laer L, De Leeneer K, Hellemans J, De Schrijver J, Van De Voorde H, Renard M, Dietz H, Lacro RV, Menten B, Van Criekinge W, De Backer J, De Paepe A, Loeys B, Coucke PJ. Applying massive parallel sequencing to molecular diagnosis of Marfan and Loeys-Dietz syndromes. Hum Mutat. 2011 Sep; 32(9):1053-62.
  23. Morris SA, Orbach DB, Geva T, Singh MN, Gauvreau K, Lacro RV. Increased vertebral artery tortuosity index is associated with adverse outcomes in children and young adults with connective tissue disorders. Circulation. 2011 Jul 26; 124(4):388-96.
  24. Li JS, Colan SD, Sleeper LA, Newburger JW, Pemberton VL, Atz AM, Cohen MS, Golding F, Klein GL, Lacro RV, Radojewski E, Richmond ME, Minich LL. Lessons learned from a pediatric clinical trial: the Pediatric Heart Network angiotensin-converting enzyme inhibition in mitral regurgitation study. Am Heart J. 2011 Feb; 161(2):233-40.
  25. Yusupov R, Roberts AE, Lacro RV, Sandstrom M, Ligon AH. Potocki-Lupski syndrome: an inherited dup(17)(p11.2p11.2) with hypoplastic left heart. Am J Med Genet A. 2011 Feb; 155A(2):367-71.
  26. Atz AM, Hawkins JA, Lu M, Cohen MS, Colan SD, Jaggers J, Lacro RV, McCrindle BW, Margossian R, Mosca RS, Sleeper LA, Minich LL. Surgical management of complete atrioventricular septal defect: associations with surgical technique, age, and trisomy 21. J Thorac Cardiovasc Surg. 2011 Jun; 141(6):1371-9.
  27. Minich LL, Atz AM, Colan SD, Sleeper LA, Mital S, Jaggers J, Margossian R, Prakash A, Li JS, Cohen MS, Lacro RV, Klein GL, Hawkins JA. Partial and transitional atrioventricular septal defect outcomes. Ann Thorac Surg. 2010 Feb; 89(2):530-6.
  28. Radbill AE, Brown DW, Lacro RV, Cecchin F, Berul CI, Triedman JK, Bevilacqua LM, Walsh EP, Alexander ME. Ascending aortic dilation in patients with congenital complete heart block. Heart Rhythm. 2008 Dec; 5(12):1704-8.
  29. Khemani E, McElhinney DB, Rhein L, Andrade O, Lacro RV, Thomas KC, Mullen MP. Pulmonary artery hypertension in formerly premature infants with bronchopulmonary dysplasia: clinical features and outcomes in the surfactant era. Pediatrics. 2007 Dec; 120(6):1260-9.
  30. Lacro RV, Dietz HC, Wruck LM, Bradley TJ, Colan SD, Devereux RB, Klein GL, Li JS, Minich LL, Paridon SM, Pearson GD, Printz BF, Pyeritz RE, Radojewski E, Roman MJ, Saul JP, Stylianou MP, Mahony L. Rationale and design of a randomized clinical trial of beta-blocker therapy (atenolol) versus angiotensin II receptor blocker therapy (losartan) in individuals with Marfan syndrome. Am Heart J. 2007 Oct; 154(4):624-31.
  31. Larrazabal LA, del Nido PJ, Jenkins KJ, Gauvreau K, Lacro R, Colan SD, Pigula F, Benavidez OJ, Fynn-Thompson F, Mayer JE, Bacha EA. Measurement of technical performance in congenital heart surgery: a pilot study. Ann Thorac Surg. 2007 Jan; 83(1):179-84.
  32. Anttila V, Piaszczynski M, Mora B, Hagino I, Lacro RV, Zurakowski D, Jonas RA. Improved outcome with composite graft versus homograft root replacement for children with aortic root aneurysms. Eur J Cardiothorac Surg. 2005 Mar; 27(3):420-4.
  33. Sokol J, Bohn D, Lacro RV, Ryan G, Stephens D, Rabinovitch M, Smallhorn J, Hornberger LK. Fetal pulmonary artery diameters and their association with lung hypoplasia and postnatal outcome in congenital diaphragmatic hernia. Am J Obstet Gynecol. 2002 May; 186(5):1085-90.
  34. Satou GM, Lacro RV, Chung T, Gauvreau K, Jenkins KJ. Heart size on chest x-ray as a predictor of cardiac enlargement by echocardiography in children. Pediatr Cardiol. 2001 May-Jun; 22(3):218-22.
  35. Abdullah MM, Lacro RV, Smallhorn J, Chitayat D, van der Velde ME, Yoo SJ, Oman-Ganes L, Hornberger LK. Fetal cardiac dextroposition in the absence of an intrathoracic mass: sign of significant right lung hypoplasia. J Ultrasound Med. 2000 Oct; 19(10):669-76.
  36. Lin AE, Herring AH, Amstutz KS, Westgate MN, Lacro RV, Al-Jufan M, Ryan L, Holmes LB. Cardiovascular malformations: changes in prevalence and birth status, 1972-1990. Am J Med Genet. 1999 May 21; 84(2):102-10.
  37. Lin AE, Westgate MN, van der Velde ME, Lacro RV, Holmes LB. Adams-Oliver syndrome associated with cardiovascular malformations. Clin Dysmorphol. 1998 Oct; 7(4):235-41.
  38. Bird LM, Billman GF, Lacro RV, Spicer RL, Jariwala LK, Hoyme HE, Zamora-Salinas R, Morris C, Viskochil D, Frikke MJ, Jones MC. Sudden death in Williams syndrome: report of ten cases. J Pediatr. 1996 Dec; 129(6):926-31.
  39. Schwartz ML, Cox GF, Lin AE, Korson MS, Perez-Atayde A, Lacro RV, Lipshultz SE. Clinical approach to genetic cardiomyopathy in children. Circulation. 1996 Oct 15; 94(8):2021-38.
  40. Pober BR, Lacro RV, Rice C, Mandell V, Teele RL. Renal findings in 40 individuals with Williams syndrome. Am J Med Genet. 1993 May 15; 46(3):271-4.
  41. Lee YS, Marks AR, Gureckas N, Lacro R, Nadal-Ginard B, Kim DH. Purification, characterization, and molecular cloning of a 60-kDa phosphoprotein in rabbit skeletal sarcoplasmic reticulum which is an isoform of phosphoglucomutase. J Biol Chem. 1992 Oct 15; 267(29):21080-8.
  42. Takahashi T, Allen PD, Lacro RV, Marks AR, Dennis AR, Schoen FJ, Grossman W, Marsh JD, Izumo S. Expression of dihydropyridine receptor (Ca2+ channel) and calsequestrin genes in the myocardium of patients with end-stage heart failure. J Clin Invest. 1992 Sep; 90(3):927-35.
  43. Jones KL, Lacro RV, Johnson KA, Adams J. Pattern of malformations in the children of women treated with carbamazepine during pregnancy. N Engl J Med. 1989 Jun 22; 320(25):1661-6.
  44. Lacro RV, Jones KL, Benirschke K. Coarctation of the aorta in Turner syndrome: a pathologic study of fetuses with nuchal cystic hygromas, hydrops fetalis, and female genitalia. Pediatrics. 1988 Mar; 81(3):445-51.
  45. Villegas-Camargo I, Lacro RV, Lyons-Jones K. [Brachmann-de Lange syndrome: report of 4 cases in Mexican children]. Bol Med Hosp Infant Mex. 1987 Dec; 44(12):766-70.
  46. Lacro RV, Jones KL. The Gorlin syndrome: a genetically determined disorder associated with cardiac tumor. J Thorac Cardiovasc Surg. 1987 Dec; 94(6):919-20.
  47. Lacro RV, Jones KL, Benirschke K. The umbilical cord twist: origin, direction, and relevance. Am J Obstet Gynecol. 1987 Oct; 157(4 Pt 1):833-8.
  48. Mathias RS, Lacro RV, Jones KL. X-linked laterality sequence: situs inversus, complex cardiac defects, splenic defects. Am J Med Genet. 1987 Sep; 28(1):111-6.
  49. Fujimoto A, Lipson M, Lacro RV, Shinno NW, Boelter WD, Jones KL, Wilson MG. New autosomal dominant branchio-oculo-facial syndrome. Am J Med Genet. 1987 Aug; 27(4):943-51.
  50. Lacro RV, Jones KL, Mascarello JT, Jones OW, Wilson N, Jones MC. Duplication of distal 15q: report of five new cases from two different translocation kindreds. Am J Med Genet. 1987 Mar; 26(3):719-28.
  51. McNamara JJ, Lacro RV, Yee M, Smith GT. Hemorrhagic infarction and coronary reperfusion. J Thorac Cardiovasc Surg. 1981 Apr; 81(4):498-501.
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