SEP 15 (2026): Cardiologic Tracings, AT HEART, thump #2 [4]

Readers might like to start off by reading about a particular group of heart disorders known as the cardiac arrhythmias, dealing with abormalities in the frequency of heartbeats. You can review that collection (syncopated verses about cardiac arrhythmias) by clicking HERE.

The current blogpost represents continuation of an earlier post, dealing with wider cardiologic issues, entitled  'AT HEART: thump #1' displayed on September 5, 2025. 

prior posted poems

(thump #1): arteriopath, bypass grafts, dipyridamole stress, dobutamine stress.

CURRENT CONTENTS: (#2 -- September 15, 2026) 

Ejection fraction

Hyperlipidemia
Hypertension
Myocardial ischemia

Authors' Note:  In disease states, including those producing congestive heart failure, the ejection fraction of the left ventricle, a measure indicating the strength of contraction, provides important information concerning prognosis (potential outcome) and the need for treatment. 

   The ejection fraction can be measured by echocardiography, magnetic resonance imaging, or several different nuclear (radio-isotope) techniques. These techniques measure the volume of the ventricle at the end of diastolic (relaxation) and systolic (contraction) phases of the cardiac cycle. Despite the name, the change during systole is generally given in medical jargon as the percent relative change, rather than as a true fraction; e.g. 60% is good, 30% is bad.

Authors' Note: Jealousy at the flight of birds has apparently resulted in expressions suggesting that human social responsibility is analogous to having one's wings clipped, or flying straight, as here.

Hyperlipemia (also known in America as hyperlipidemia), is a medical condition in which high blood levels of fats (lipids), particularly cholesterol, portend cardiac disease, including deadly heart attacks. Hyperlipemia is one of a number of such asymptomatic risk factors including hypertension and diabetes. Fortunately, changes in lifestyle including diet and exercise, and judicious prescription of pharmaceutical drugs, such as statins, can reduce risk.

 Authors' Note: High blood pressure, or hypertension, a chronic condition generally of unknown cause, is one of the major cardiovascular risk factors playing a role in the development of adult heart disease. It is also of particular importance in the causation of stroke, accounting for up to 50% of the risk for that condition. 

Authors' Note: There is variability in patients' response to the development of blockages in the coronary arteries. Part of this is due to the gradual development of collateral arteries or side branches, which may mitigate the effect of the obstructions to produce chronic symptoms or acute severe damage to heart muscle. The net impact on flow can be assessed through imaging showing blood flow to heart muscle at rest and stress, with nuclear or other studies of myocardial perfusion (‘gated SPECT’).

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