Ventricular outflow tract obstruction

Ventricular outflow tract obstruction
	Human heart
Specialty	Cardiology

A ventricular outflow tract obstruction is one type of congenital heart defect in which either the right or left ventricular outflow tract is blocked or obstructed. These obstructions represent a spectrum of disorders.

Right side

A right ventricular outflow tract obstruction (RVOTO) may be due to a defect in the pulmonic valve, the supravalvar region, the infundibulum, or the pulmonary artery.[1]

Left side

A left ventricular outflow tract obstruction (LVOTO) may be due to a defect in the aortic valve, or a defect located at the subvalvar or supravalvar level.[2]

References

Bashore TM (2007). "Adult congenital heart disease: right ventricular outflow tract lesions". Circulation. 115 (14): 1933–1947. doi:10.1161/CIRCULATIONAHA.105.592345. PMID 17420363.CS1 maint: uses authors parameter (link)
Gaynor JW, Elliott MJ (1993). "Congenital left ventricular outflow tract obstruction". Journal of Heart Valve Disease. 2 (1): 80–93. PMID 7505702.CS1 maint: uses authors parameter (link)

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[1] Bashore TM (2007). "Adult congenital heart disease: right ventricular outflow tract lesions". Circulation. 115 (14): 1933–1947. doi:10.1161/CIRCULATIONAHA.105.592345. PMID 17420363.CS1 maint: uses authors parameter (link)

[2] Gaynor JW, Elliott MJ (1993). "Congenital left ventricular outflow tract obstruction". Journal of Heart Valve Disease. 2 (1): 80–93. PMID 7505702.CS1 maint: uses authors parameter (link)