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Persistent left superior vena cava

Persistent left superior vena cava
Classification & external resources
ICD-10 Q26.1
ICD-9 747.49

In anatomy, a persistent left superior vena cava (PLSVC) is the most common variation of the thoracic venous system,[1][2] is prevalent in 0.3% of the population,[3] and an embryologic reminant that results from a failure to involute.

Additional recommended knowledge

In PLSVC, the left brachiocephalic vein does not develop fully and the left upper limb and head & neck drain into the right atrium via the coronary sinus. The variation, in insolation, is considered benign, but is very frequently associated with cardiac abnormalities (e.g. ventricular septal defect, atrioventricular septal defect) that have a significant mortality and morbidity.[4] It is more frequent in patients with congenital heart defects.[5]


  1. ^ Pahwa R, Kumar A. Persistent left superior vena cava: an intensivist's experience and review of the literature. South Med J. 2003 May;96(5):528-9. PMID 12911199.
  2. ^ Gonzalez-Juanatey C, Testa A, Vidan J, Izquierdo R, Garcia-Castelo A, Daniel C, Armesto V. Persistent left superior vena cava draining into the coronary sinus: report of 10 cases and literature review. Clin Cardiol. 2004 Sep;27(9):515-8. PMID 15471164.
  3. ^ Freedom RM, Culham JAG, Moes CAF. Angiography of Congenital Heart Disease. Macmillan Publishing Co., New. York, 1984. URL: Accessed on March 24, 2006.
  4. ^ Berg C, Knuppel M, Geipel A, Kohl T, Krapp M, Knopfle G, Germer U, Hansmann M, Gembruch U. Prenatal diagnosis of persistent left superior vena cava and its associated congenital anomalies. Ultrasound Obstet Gynecol. 2006 Mar;27(3):274-80. PMID 16456841.
  5. ^ Bjerregaard P, Laursen HB. Persistent left superior vena cava. Incidence, associated congenital heart defects and frontal plane P-wave axis in a paediatric population with congenital heart disease. Acta Paediatr Scand. 1980 Jan;69(1):105-8. PMID 7368902.

External links

  • Radiograph of a persistent left SVC -
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Persistent_left_superior_vena_cava". A list of authors is available in Wikipedia.
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