cardiomegaly


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cardiomegaly

 [kahr″de-o-meg´ah-le]
abnormal enlargement of the heart from either hypertrophy or dilatation.

car·di·o·meg·a·ly

(kar'dē-ō-meg'ă-lē),
Enlargement of the heart.
[cardio- + G. megas, large]

cardiomegaly

/car·dio·meg·a·ly/ (-meg´ah-le) abnormal enlargement of the heart.

cardiomegaly

(kär′dē-ō-mĕg′ə-lē)
n.
Enlargement of the heart. Also called megalocardia.

cardiomegaly

[kär′dē·ōmeg′əlē]
Etymology: Gk, kardia + megas, large
enlargement of the heart.

cardiomegaly

Enlargement of the heart

car·di·o·meg·a·ly

(kahr'dē-ō-meg'ă-lē)
Enlargement of the heart.
Synonym(s): macrocardia, megalocardia.
[cardio- + G. megas, large]

cardiomegaly

Enlargement of the heart. This is caused by an increase in the bulk of the heart muscle (hypertrophy) or by a ballooning out of the chambers of the heart (dilatation).

Cardiomegaly

An enlarged heart.
Mentioned in: Kawasaki Syndrome

car·di·o·meg·a·ly

(kahr'dē-ō-meg'ă-lē)
Enlarged heart.
[cardio- + G. megas, large]

cardiomegaly

enlargement of the heart.

Patient discussion about cardiomegaly

Q. What causes Cardiomegaly? My Husband has had a physical checkup and has found to have Cardiomegaly. What does it mean and what causes it?

A. Cardiomegaly is a condition wherein the heart enlarges. Cardiomegaly occurs if the heart is more than 50 percent bigger than the inner diameter of one’s rib cage. It can be caused by many different things, but mostly it is because of low heart output, otherwise referred to as a cardiac failure.

Q. Why does Aortic stenosis causes an enlarged heart? My father was recently diagnosed as suffering from enlarged heart due to his Aortic stenosis. what is the connection between those to conditions? As far as I understand that aortic stenosis mean that the aortic valve is too small not too large...

A. there are several explanations for the enlargement of the heart that occurs due to Aortic stenosis. the most reasonable is that the mechanical power that the heart uses makes it bigger. it easy to see it here: http://www.marvistavet.com/assets/images/aortic_stenosis.gif
this is called Left Ventricular Hypertrophy or LVH in abbreviations.
this is a classic LVH E.C.G.
http://www.frca.co.uk/images_main/resources/ECG/ECGresource39.jpg

Q. what does enlarged heart mean? is it linked to down syndrome? My wife is 16 weeks pregnant. we did a prenatal US and we were told that the baby hes an enlarged heart and that we are advised to do amniocentesis. A friend of mine had a baby with down syndrome, and he was toled that if they have done this procedure, the doctors could have find it on time and abort the pregnancy. Is there a clear connection between the enlarged hart and the fact that the doctor advised us to do this procedure to down syndrome?

A. Down syndrome is associated with several kinds of heart problems. those problems can cause an enlarged heart but usually it will appears as a post-natal complication.
The protocol that most obstetrics use is that if there is anything abnormal in the US there is an automatic referral to an amniocentesis procedure.
the US has a lot of false alarms, so they must check with the more accurate procedure.

More discussions about cardiomegaly
References in periodicals archive ?
Alcohol vapour inhalation during heart development causes cardiomegaly and cardiac chamber dilatation, resulting in dilated cardiomyopathy.
Chest radiograph revealed globular shaped cardiomegaly suggestive of pericardial effusion (Figure 2).
At birth, the infant had generalized hemorrhagic purpura (a blueberry muffin rash) over the entire body, patent ductus arteriosus, cardiomegaly, thrombocytopenia, pneumonitis, anemia, and liver dysfunction.
Radiographic cardiomegaly and pericardial effusion are often seen.
It begins with overviews of the normal cardiovascular system, examination, cardiac radiography, electrocardiography, and echocardiography, followed by clinical manifestations and management of problems like murmurs, cardiomegaly, cough, respiratory difficulty, jugular vein distention or pulsations, abdominal distention, abnormal heart rate or rhythm, syncope, heart failure, arrhythmias, congenital diseases, acquired valve diseases, myocardial and pericardial diseases, hypertension, and heartworm, and evaluation techniques, investigative procedures, diagnosis, and medical and surgical options and methods, with many images.
Chest x-ray showed cardiomegaly with bilateral pulmonary congestion (Fig.
Of the seven deployed dogs with cardiac lesions, five had mild left-sided cardiomegaly with atrial involvement, one had right-sided cardiomegaly, and one had mild generalized cardiomegaly None of these dogs had evidence of congestive heart failure at the time of radiographs.
By 24 hours of age, the infant had polycythemia, tachypnea, feeding intolerance, hypoglycemia, cardiomegaly, and hazy lung fields.
Although any or all of the heart's four chambers can be increased in size, cardiomegaly implies more specifically that one or both of the ventricles are too large, and that their pumping function is reduced.
During the study, the researchers removed the KCNE2 gene from some mice, which, they observed, cause the animals to develop symptoms of hypothyroidism, especially during pregnancy, and gave birth to pups with dwarfism, alopecia (baldness) and cardiomegaly (enlarged heart).
The EKG again showed abnormalities, including a nonspecific T-wave abnormality, as did the chest radiograph (moderate cardiomegaly, tortuous aorta, mild prominence of the pulmonary vasculature without evidence of congestive failure, and small left pleural effusion or slight blunting of the left lateral costophrenic angle).
Chest radiograph showed minimal cardiomegaly and subtle miliary or interstitial processes in both lungs.