BACKGROUND: The prognosis of @entity1 in whom the right coronary artery (RCA) arises from the left coronary sinus (LCS) is unequal. An initial intramural course of the coronary artery within the aortic media is considered to cause @entity741 in cases of @entity301 . METHODS: Clinicopathological findings in five autopsy cases where the RCA arose from the LCS with an intramural course were examined. Comparison between @entity1164 and @entity204 was also performed. RESULTS: Two of five cases were @entity1164 , and the other three cases were @entity204 . In one case of @entity944 , the @entity1 collapsed during light exercise, and in the other case, the @entity1 was under the effect of @entity888 . Both of the cases of @entity944 showed an RCA-dominant pattern in distribution of the coronary artery, @entity731 narrowing of the RCA, and acute @entity63 @entity39 in the posterior basilar ventricular septum around the atrioventricular conduction system, which is considered to be the territory of the RCA. CONCLUSIONS: An intramural course within the aortic media may be an accelerating factor of @entity551 in cases with an origin of the RCA arising from the LCS because of compression from the aortic lumen. However, this finding may not be an independent predictor of pathological @entity63 . Additional factors that diminish blood flow in the intramural segment may be required to cause significant @entity741 . Additionally, inciting factors, which can increase blood pressure, may also play a role in causing symptomatic @entity741 by initiating mechanical compression from the aorta to the intramural segment of the RCA.

Anomalous origin of the right coronary artery from the left coronary sinus with an intramural course: comparison between XXXX and @entity944 cases.

@entity1 :: ('9606', 'Species') :: ['patients', 'person'] @entity1164 :: ('MESH:D016757', 'Disease') :: ['sudden cardiac death'] @entity888 :: ('MESH:D008694', 'Chemical') :: ['methamphetamine'] @entity301 :: ('MESH:D003327', 'Disease') :: ['coronary anomalies'] @entity944 :: ('MESH:D003645', 'Disease') :: ['sudden death'] @entity63 :: ('MESH:D007511', 'Disease') :: ['ischemia', 'ischemic'] @entity39 :: ('MESH:D009336', 'Disease') :: ['necrosis'] @entity551 :: ('MESH:D007022', 'Disease') :: ['decreased blood flow'] @entity741 :: ('MESH:D017202', 'Disease') :: ['myocardial ischemia'] @entity731 :: ('MESH:D050197', 'Disease') :: ['atherosclerotic'] @entity204 :: ('MESH:D003643', 'Disease') :: ['noncardiac death']
@entity944 :: (MESH:D003645,Disease) :: ['sudden-death']
