Cor bovinum

Cor bovinum
Other names	Cor bovis
Specialty	Cardiology

Cor bovinum or cor bovis refers to a massive hypertrophy of the left ventricle of the heart due to volume overload, usually in earlier times in the context of tertiary syphilis but currently more often due to chronic aortic regurgitation, hypertensive and ischaemic heart disease.

Signs and symptoms

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Pathophysiology

Due to syphilitic aortitis (a complication of tertiary syphilis) the aortic valve ring becomes dilated. The free margins of valve cusps no longer approximate leading to aortic valve insufficiency. As blood regurgitates into the left ventricle between each systole, volume overload ensues and the ventricular wall hypertrophies in an attempt to maintain cardiac output and blood pressure. The massive ventricle can lead to a heart weighing over 1000 grams (the weight of a normal heart is about 350 grams), referred to as cor bovinum (Latin for cow's heart).^[1]

Fluri and Gebbers^[2] define cor bovinum as a heart exceeding 500 g in weight. Looking through autopsies on Internal Medicine patients at the Kantonsspital Luzern, they found 415 cases out of 1181 autopsies in the two periods 1978-81 and 1997–2000. Cor bovinum was found in 25.3% of cases in the earlier period, with mean age at death 67.7 years, and in the later period 20.6% with mean age 74.3 years. The male female ratio was 4:1. "In 93% of all patients with CB, we found coronary atherosclerosis as a sign of high blood pressure and in 79% a COPD."

In 84% of cases the cause of death was directly related to the cor bovinum, but in 37% the cause of death was still unclear. They concluded that cor bovinum was a decreasing but still frequent autopsy finding. High blood pressure, COPD and male sex were the main risk factors. The decreasing incidence was ascribed to improved medical management: they mention treatments for high blood pressure and coronary artery disease, which suggests that "COPD" in their abstract refers to the latter.^{[citation needed]}

Diagnosis

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Terminology

A Medline search in January 2008 of articles published since 1950 revealed seven articles on "cor bovinum" (in the earlier part of this period only the titles could be searched), of which only one was in English. A search for dictionary-reported synonyms revealed no mention of "bucardia," and all 101 articles mentioning "ox heart" related to oxen.^{[citation needed]}

References

^ Kumar, V et al. Robbins and Colran Pathologic Basis of Disease, 7th ed
^ Fluri S, Gebbers JO, [Cor bovinum: decreased incidence over the last 20 years - a therapeutic success?] Schweizerische Rundschau fur Medizin Praxis. 90(45):1964-72, 2001 Nov 8 [article in German] PubMed ID=11817240

Cardiovascular disease (heart)

Ischemia

Coronary disease	Coronary artery disease (CAD) Coronary artery aneurysm Spontaneous coronary artery dissection (SCAD) Coronary thrombosis Coronary vasospasm Myocardial bridge
Active ischemia	Angina pectoris Prinzmetal's angina Stable angina Acute coronary syndrome Myocardial infarction Unstable angina
Sequelae	hours Hibernating myocardium Myocardial stunning days Myocardial rupture weeks Ventricular aneurysm Dressler syndrome

Layers

Pericardium

Myocardium

Endocardium /
valves

Endocarditis	infective endocarditis Subacute bacterial endocarditis non-infective endocarditis Libman–Sacks endocarditis Nonbacterial thrombotic endocarditis
Valves	mitral prolapse stenosis regurgitation aortic stenosis regurgitation tricuspid stenosis regurgitation pulmonary stenosis regurgitation

Conduction /
arrhythmia

Bradycardia

Tachycardia
(paroxysmal and sinus)

Supraventricular	Atrial Multifocal Junctional AV nodal reentrant Junctional ectopic
Ventricular	Accelerated idioventricular rhythm Catecholaminergic polymorphic Torsades de pointes

Premature contraction

Pre-excitation syndrome

Flutter / fibrillation

Other / ungrouped

Other

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