Dysrhythmias IV

Cardiovascular System

{"ops":[{"insert":"Four hours after delivery, a newborn develops poor feeding, lethargy, and mild respiratory distress. The mother\u0027s prenatal care was at another facility, and no records are available. The newborn\u0027s temperature is 37 \u02daC (98.6 \u02daF), pulse is 50\/min, and blood pressure is 60\/30 mmHg. Her lungs are clear to auscultation. There is no cardiac murmur. Electrocardiogram shows atrioventricular dissociation with otherwise unremarkable P waves and QRS complexes. An echocardiogram is normal.\n\nWhich of the following maternal diseases is the most likely cause of this infant\u0027s condition?"},{"insert":"\n"}]}




Diabetes mellitus


Autoimmune disease


Idiopathic epilepsy




Cocaine use


{"ops":[{"insert":"ZHOU KY, HUA YM. Autoimmune-associated Congenital Heart Block: A New Insight in Fetal Life. Chin Med J (Engl) [online] 2017 Dec 5, 130(23):2863-2871 [viewed 21 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/29176145"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"BRITO-ZER\u00f3N P, IZMIRLY PM, RAMOS-CASALS M, BUYON JP, KHAMASHTA MA. The clinical spectrum of autoimmune congenital heart block Nat Rev Rheumatol [online] 2015 Mar 24, 11(5):301-312 [viewed 21 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5551504"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"FRIEDMAN D, DUNCANSON L, GLICKSTEIN J, BUYON J. A review of congenital heart block Images Paediatr Cardiol [online] 2003 Jul-Sep, 5(3):36-48 [viewed 21 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3232542"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"LEVY HL, GULDBERG P, G\u00fcTTLER F, HANLEY WB, MATALON R, ROUSE BM, TREFZ F, AZEN C, ALLRED EN, DE LA CRUZ F, KOCH R. Congenital heart disease in maternal phenylketonuria: report from the Maternal PKU Collaborative Study. Pediatr Res [online] 2001 May, 49(5):636-42 [viewed 21 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/11328945"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"ETEMAD L, MOSHIRI M, MOALLEM SA. Epilepsy drugs and effects on fetal development: Potential mechanisms J Res Med Sci [online] 2012 Sep, 17(9):876-881 [viewed 24 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3697215"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"FENG Q. Postnatal consequences of prenatal cocaine exposure and myocardial apoptosis: does cocaine in utero imperil the adult heart? Br J Pharmacol [online] 2005 Jan 31, 144(7):887-888 [viewed 24 November 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC1576081"},{"insert":"\n","attributes":{"list":"ordered"}}]}

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