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 [...]
Archive for the ‘Uncategorized’ Category
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 »
The impact factor of diabetes , hypertension , smoking and dyslipidemia on human vasculature : Aren’t they different ?
Posted in Uncategorized, tagged dm, sht 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 [...]
How common is ischemic SVT ?
Posted in Uncategorized, tagged svt on November 4, 2009 | Leave a Comment »
Ischemic ventricular tachycardia is a too well recognised clinical entity . But , ischemia triggered atrial arrhythmias are less often encountered .
Does that mean , atria are relatively protected from the effects of ischemia ?
Not really . . . It is possible it may not be that rare , as we think .
And then , [...]
What is the difference between isoelectric P waves and absent p waves ?
Posted in Cardiology-Arrhythmias, Uncategorized, tagged absent p waves, atrial fibrillation, avnrt, avrt, ectopic atrail tachycardia, isoelectric p waves on November 4, 2009 | Leave a Comment »
P waves represent atrial depolarisation. The p wave height and width depends not only the size of the RA and LA but also the site of origin of atrial impulse .A normal SA nodal origin of P wave produce the normal shaped p waves.
We know ectopic p waves can have a wide variation of morphology.(Fully [...]
Does the esophageal spasm get relieved by sublingual nitroglycerine ?
Posted in Uncategorized, tagged esophageal on November 2, 2009 | Leave a Comment »
Esophagus and the heart are closely related structures. Both can generate chest pain that can mimic each other. The squeezing substernal pain is very characteristic of esophageal spasm .The smooth muscle of esophagus can exactly mimic a vascular smooth muscle .The relief of chest pain following nitrates though very classical of angina it can very [...]
What is being rescued in rescue angioplasty ?
Posted in Uncategorized on October 18, 2009 | Leave a Comment »
Rescue angioplasty as a concept in PCI is advocated for the past two decades. Rescue angioplasty continues to enjoy the controversy over the years. A procedure which fails to shrug off the controversy for so long inspite of multiple studies , would indicate there is something seriously wrong in the procedure or in the [...]
Can medical mangement convert a patient with positive stress test into negative ?
Posted in Uncategorized on October 16, 2009 | Leave a Comment »
Exercise stress test is the most commonly used non invasive diagnostic test for CAD.
It is also useful in the functional capacity evaluation.Even though medical management of CAD is a proven and accepted method of therapy in CAD . There is always a perception even among the cardiologists medical management is an inferior form of [...]
Great medical web sites : How to innovate medical education ?
Posted in Uncategorized, tagged great cardiology web site, great medcial videos, great medical web site, innovations in medical education, top medical sites, university of wisconsin on September 23, 2009 | Leave a Comment »
Internet has revolutionised in sharing our knowledge . But , the freedom it gives has a trade off .Identifying genuine knowledge in the vast cyberspace is like searching for lost treasure in the ocean bed.
Have a look at this site which innovates medical teaching
Why P wave becomes “tall” in RA enlargement and “wide” with LA enlargement ?
Posted in Uncategorized, tagged LAE, RAE on September 20, 2009 | Leave a Comment »
Normal P waves
What are the components of Pwave ?
RA component : The SA node depolarises the RA first , so the initial part of P wave represents RA after about 40msec the wave front reaches LA and it begins it’s depolarisation .LA component :By the time LA is maximally depolarised the RA already starts its [...]