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Question
Posted by: Cornel | 2007/03/06

Verwys: 1607

Baie dankie Doc. Ek het die Website besoek en sommer 'n klomp ander sites ook en gaan nalees oor die Valve probleem. Ek kon ongelukkig nêrens die afmetings van 'n "normale" hart kry nie. U vra hoe groot is ek: 31 jaar oud, Vroulik, 1.67m lank en weeg 67kg. Sal u nou vir my 'n aanduiding kan gee van hoe groot my "left ventricle" en hart veronderstel is om te wees? Die afmetings wat die Kardioloog gedoen het is 32 en 48 en ek wil weet of ek rede het tot kommer.

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Our expert says:
Expert ImageCyberDoc

Hallo Cornel,
Hulle werk dit met 'n wiskundige formule, die Simpson's rule, uit na aanleiding van jou hart se volumes voor en na 'n klop - nogal tegnies. Sy eggogram verslag sal sê of dit vergroot is of nie - vra jou huisdr om te kyk of as jy 'n afskrif het, skryf vir my neer dan kyk ek vir jou.

Left-Ventricular Measurements
We begin by tracing the outline of the LV shadow at end-diastole (when it is the biggest) and end-systole (when it is the smallest). We then can use these outlines to calculate end-diastolic volume (EDV) and end-systolic volume (ESV). (In truth, we can't calculate the volumes - there is not enough information in one or two X-ray projections. We actually estimate the volumes using mathematical models and assumptions about the symmetries of the LV cavity.)These numbers are then plugged into a bunch of formulas to calculate other, more interesting, parameters, such as:
Stroke Volume (SV) = EDV - ESV
Ejection Fraction (EF) = SV / EDV
Cardiac Output (CO) = SV x Heart Rate

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.

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Our users say:
Posted by: anxious | 2007/03/06

Cornel

CD still doesn't seem to know what's happened with HeartDoc? Why don't H24 administrators answer readers/other doctor's queries about this?

Reply to anxious

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