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• Echocardiography

  Echocardiography for Children

  Echocardiography is an imaging test. It uses sound waves to make detailed pictures of the heart. Echocardiography is an important imaging test for heart problems in infants and children. It may help diagnose problems your child was born with (congenital). Or it may help diagnose a problem that has developed (acquired). 
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• General Cardiology

  Home Page - Cardiovascular Diseases

  Cardiovascular diseases include coronary heart disease, stroke, high blood pressure, and rheumatic heart disease.
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• General Pediatric Cardiology

  Diagnosing and Evaluating Heart Disease in Children

  Detailed information on diagnosing and evaluating heart disease in children
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• Marfan Syndrome

  Marfan Syndrome in Children

  Marfan syndrome is a genetic disorder that affects the body's connective tissue. Connective tissue holds the body's cells, organs, and other tissue together. Connective tissue is also important in growth and development.
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• Pediatric Cardiomyopathy and Heart Transplant

  Cardiomyopathy and Your Child

  Cardiomyopathy is disease of the heart muscle that reduces the heart's ability to pump blood effectively. Different kinds of cardiomyopathy cause the heart muscle to enlarge, thicken, or become stiff. Cardiomyopathy can be due to a number of causes, including viral infections and certain medicines. It can also be inherited.
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• Antibody mediated rejection
• Non-invasive imaging for cardiac inflammation

Link to my PubMed publications >

1. A novel association of biventricular cardiac noncompaction and diabetic embryopathy: case report and review of the literature. Woo JS, Perez-Rosendahl M, Haydel D, Perens G, Fishbein MC. Pediatr Dev Pathol. 2015 Jan-Feb;18(1):71-5. doi: 10.2350/14-07-1532-CR.1. Epub 2014 Nov 11. Review. PMID: 25386687 Similar articles. Select item 25108499
2. Posterolateral hypertrophic cardiomyopathy: a rare, but clinically significant variant of hypertrophic cardiomyopathy. Seki A, Perens G, Fishbein MC. Cardiovasc Pathol. 2014 Nov-Dec;23(6):381-2. doi: 10.1016/j.carpath.2014.07.002. Epub 2014 Jul 15. PMID: 25108499 Similar articles. Select item 23518027
3. Primary endocardial fibroelastosis: an underappreciated cause of cardiomyopathy in children. Seki A, Patel S, Ashraf S, Perens G, Fishbein MC. Cardiovasc Pathol. 2013 Sep-Oct;22(5):345-50. doi: 10.1016/j.carpath.2013.02.003. Epub 2013 Mar 19. PMID: 23518027. Similar articles. Select item 23696469
4. First report of a de novo 18q11.2 microdeletion including GATA6 associated with complex congenital heart disease and renal abnormalities. Bui PH, Dorrani N, Wong D, Perens G, Dipple KM, Quintero-Rivera F. Am J Med Genet A. 2013 Jul;161A(7):1773-8. doi: 10.1002/ajmg.a.35974. Epub 2013 May 21. PMID: 23696469 Similar articles. Select item 22475572
5. Canonical Wnt/β-catenin signaling in epicardial fibrosis of failed pediatric heart allografts with diastolic dysfunction. Ye B, Ge Y, Perens G, Hong L, Xu H, Fishbein MC, Li F. Cardiovasc Pathol. 2013 Jan-Feb;22(1):54-7. doi: 10.1016/j.carpath.2012.03.004. Epub 2012 Apr 2. PMID: 22475572 Free PMC Article. Similar articles. Select item 21640617
6. Diverse morphologic manifestations of cardiac allograft vasculopathy: a pathologic study of 64 allograft hearts. Lu WH, Palatnik K, Fishbein GA, Lai C, Levi DS, Perens G, Alejos J, Kobashigawa J, Fishbein MC. J Heart Lung Transplant. 2011 Sep;30(9):1044-50. doi: 10.1016/j.healun.2011.04.008. Epub 2011 Jun 2. PMID: 21640617 Similar articles. Select item 20224752
7. Initial Experience with Sildenafil, Bosentan, and Nitric Oxide for Pediatric Cardiomyopathy Patients with Elevated Pulmonary Vascular Resistance before and after Orthotopic Heart Transplantation. Daftari B, Alejos JC, Perens G. J Transplant. 2010;2010:656984. doi: 10.1155/2010/656984. Epub 2010 Mar 10. PMID: 20224752 Free PMC Article. Similar articles. Select item 19017288
8. Clinico-pathologic findings in end-stage pediatric heart transplant grafts. Perens G, Li F, Meier S, Kaur R, Alejos JC, Fishbein M. Pediatr Transplant. 2009 Nov;13(7):887-91. doi: 10.1111/j.1399-3046.2008.01087.x. Epub 2008 Oct 31. PMID: 19017288 Similar articles. Select item 19660618
9. The corrected QT interval before and after heart transplantation. Moore JP, Alejos JC, Perens G, Wong S, Shannon KM. Am J Cardiol. 2009 Aug 15;104(4):596-601. doi: 10.1016/j.amjcard.2009.04.024. Epub 2009 Jun 18. PMID: 19660618. Similar articles. Select item 18466430
10. Growth and weight gain of prepubertal children after cardiac transplantation. Peterson RE, Perens GS, Alejos JC, Wetzel GT, Chang RK. Pediatr Transplant. 2008 Jun;12(4)436-41. doi: 10.1111/j.1399-3046.2007.00826.x. PMID: 18466430

Dr. Perens discusses new mandatory screening for heart disease in newborns

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• Top Doctors, Los Angeles Magazine, 2021
• Pediatric Cardiology Teaching Award 2015
• Pediatric Cardiology Teaching Award 2011