Heart rate and human survival has an inverse relationship. This is in fact true for all mammals.The tortoise which has a heart rate of 6/mt lives for over 200 years. The rat which has heart rate of 500 dies does not even celebrate it’s first birth day ! Human beings with an average heart rate [...]
Archive for the ‘Uncategorized’ Category
Some possible truths about human heart
Posted in Uncategorized, tagged heart rate on November 29, 2009 | Leave a Comment »
Why we struggle to prove the benefitial effect of strict diabetic control on cardiovascular events ?
Posted in Uncategorized, tagged diabetes on November 27, 2009 | 2 Comments »
Diabetes is the scourge of mankind .( Womankind too ! In fact it affect women more than men !) When we say DM & Cardiovascular disease we mean the type 2 maturity onset DM .Even a lay person can recognise the strong link between DM and increased cardiovascular mortality .
While logic would make the same [...]
Beware of non infarct q waves : A women with an unusual pathological q waves
Posted in Cardiology - Clinical, cardiology -ECG, echocardiography, tagged ECG, ecg in constrictive pericarditis, ecg in hcm, ecg in pneumothorax, electrical short circuit, fibrotic myocardium, infero posterior mi, loculated pericardial effusion, myocardial infarction, non infarct q waves, pericardium, q waves in 2 3 avf, stunned myocardium ecg, wpw syndrome on November 25, 2009 | Leave a Comment »
Looks very much a infarct of infero posterior territory is it not ?
Have a look at her 2D echo still picture . . .
Are you convinced ?
This women had normal LV systolic and diastolic function with no evidence of constriction.
The explanation for the asymptomatic pericardial thickening is due to a healed chronic pericarditis .This [...]
Let us clear the confusion about ventricular tachycardia :Is it a regular or irreguar tachycardia?
Posted in Uncategorized, tagged ventricualr tachycadia on November 19, 2009 | Leave a Comment »
Ventricular tachycardia is the most common wide qrs tachycardia.It is generally taught VT is a regular wide qrs tachycardia.It indeed appears regular most of the time but in reality it is not.
There are few situations it shows irregularity . Of course , this irregularity may be due to the associated phenomenon , even as the [...]
What are the determinants of qrs width in ventricular tacycardia ?
Posted in Uncategorized, tagged ventricular on November 13, 2009 | Leave a Comment »
Every one knows VT presents as a wide qrs tachycardia .Few of us , know VT can be narrow or even a normal qrs complex . But .none of us know what is the exact reason , why the width of qrs complex in VT swings from narrow to wide.
Factors determining qrs width in VT.
Origin of VT :Septal, freewall , apex etc
Epicardial [...]
How will you differentiate a wenkebach’s Mobitz type 1 AV block from type 2 second degree AV block if the conduction ratio is 2: 1 ?
Posted in Uncategorized, tagged av block on November 11, 2009 | Leave a Comment »
It is the classical description of wenkebach AV block type 1 there is progressive prolongation of PR interval followed by a blocked p wave and hence a dropped qrs complex. The usual conduction ratio for wenkebach AV block is 3:2 or 4:3 .
It is well known wenkebach AV block is usually a benign form of AV conduction defect and it [...]
Is aberrancy same as functional bundle branch block ?
Posted in Uncategorized, tagged fucntional bundle branch block on November 8, 2009 | Leave a Comment »
Is aberrancy same as functional bundle branch block ? Some electrophysiological entities are used too liberally without much meaning . The terms functional bundle branch block or rate dependant bundle branch block is actually used interchangably with aberrant conduction .It should be noted aberrant conduction can occur at extremes of heart rate .Even though tachycardia [...]
Forgotten concepts in cardiology : Over drive pacing
Posted in Cardiology-Arrhythmias, Uncategorized, tagged amiodarone, anti tacyhcardia pacing, atp, brady tachy syndrome, burst pacing, cardiac arrhythmias, coupled pacing, digoxin induced tachycardia, electrical storm, over drive pacing, pace maker, paired pacing, polymorphic vt, ramp pacing, refractory vt on November 7, 2009 | Leave a Comment »
It is one of the greatest innovation in medicine . . . that is . . . electric current being used as a drug to treat disorders of heart . Of course , it is not a surprising finding when we know heart is an electro mechanical organ , and electricity can be used to [...]
The impact factor of diabetes , hypertension , smoking and dyslipidemia on human vasculature : Aren’t they different ?
Posted in Uncategorized, tagged atherosclerosis, carotid plaque, cerbro vascular disease, cholesterol and heart, coronary risk factors, dm, dyslipidemia, endothelial injury, foam cells, hdl, ldl, macrophages, obesity, peripheral vascualr disease, peripheral vascular disease, pvd, renal artery stenosis, sht, smoking, smoking and heart, tao, thrombo angitis, vldl on November 5, 2009 | Leave a Comment »
We know diabetes, smoking, hyperlidemia, hypertension are major risk factors for progressive vascular disease. They damage the vascular endothelium either directly or indirectly , by aggravating the atheroscelortic process . Diabetes apart from affecting the medium sized arteries , also affect the microvasculature. Smoking has a direct effect on endothelial function .It depletes vascular nitric [...]
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