Heparin was invented accidentally by a 26 year old , Jay McLean, a pre clinical medical student in 1916 .It was one of the greatest discovery in medicine .It helped us prevent blood from clotting.Frozen blood inside human circulatory system constituted one of important mechanisms of human death.This ranged from acute myocardial infarction to cerebral [...]
Archive for April, 2009
Importance of common sense in cardiology : Let us name heparin as a thrombolytic agent !
Posted in Infrequently asked questions in cardiology (iFAQs), cardiology -Therapeutics, tagged anti coagulation, fibrinolysis, heparin, heparin and thrombolysis, heparin as a thrombolytic agent, streptokinase, thrombolysis on April 30, 2009 | Leave a Comment »
Deep vein thrombosis : Therapeutic dilemmas
Posted in Cardiology - Clinical, Uncategorized, tagged deep vein thrombosis, dvt, ivc filters., pulmonary embolism, vte on April 29, 2009 | Leave a Comment »
The importance of venous system
Cardiovascular system consists not only of heart but also the blood delivery and retrieval system namely the arterial and venous circulation .As the heart pumps , 6 liters of blood every minute , it has to traverse the entire venous circulation promptly , to complete the [...]
Why sinus node dysfunction rarely kills a patient ?
Posted in Cardiology-Arrhythmias, cardiology -ECG, tagged chb, complete heart block, permanent pacemaker, sinus node dysfunction, sinus pause, siuns arrrest, snd, ventricualr pause on April 22, 2009 | Leave a Comment »
Sick sinus syndrome or sinus node dysfunction (SSS, SND ) is one of the common cause of symptomatic bradycardia .The other cause for pathological bradycardia is complete heart block.Together , these two entities share 99% of indications for permanentpacemaker implantation.
The sinus node can get affected in various diseases . The commonest cause for SND [...]
What do we mean by the term “LV dysfunction” ?
Posted in Cardiology - Clinical, Cardiology -unresolved questions, cardiac drugs, cardiac surgery, tagged lv dysfcuntion on April 20, 2009 | Leave a Comment »
LV dysfunction , perhaps is the most common medical term used by physicians world over.But surprisingly , It is not easy to infer what they mean by it ! The term literally means left ventricle is not functioning all right .
LV dysfunction can be classified by many ways.
Symptomatic vs Asymptomatic
Global vs Regional
Reversible vs Permanent
Systolic vs [...]
How does coronary revascularisation improve LV dysfunction in patients with ischemic cardiomyopathy ?
Posted in Cardiology - Clinical, cardiac drugs, cardiac surgery, cardiology- coronary care, tagged akinetic myocardium, cabg, cabg vs medical management, is cabg useful in lv dysfunction, lv dysfunction, myocardium, pci, revascularisation on April 20, 2009 | Leave a Comment »
The answer to this question is not easy , as one would tend to believe . In fact this question , takes it for granted revascularisation will improve the LV dysfunction in patients with severe LV dysfunction.
The truth is , we are not sure about the mechanisms . How revasculariastion will have an [...]
What we don’t know about coronary collaterals ?
Posted in Cardiology - Clinical, Cardiology -Interventional -PCI, Cardiology -unresolved questions, Cardiology-Coronary artery disese, cardiology -Therapeutics, cardiology- coronary care, tagged collaterals, coornary collaterl circulation on April 17, 2009 | Leave a Comment »
Coronary collateral circulation is the God’s gift to mankind.It has potential benefits ( and of course real benefit !) both during acute and chronic coronary syndrome.
Collaterals in CCS
The classical role of coronary collateral is in patients with chronic stable angina.It is quiet common to see patients with totally occluded LAD or RCA with normal LV [...]
A new marker for transudate in pleural effusion
Posted in Cardiology - Clinical, Cardiology-Coronary artery disese, cardiology -Therapeutics, tagged atrial naturetic peptide, bio markers for cardiac failure, bnp, cardiac failure, nt prpbnp, pleural effusion, transudate vs exudate on April 17, 2009 | Leave a Comment »
Diagnostic issues in cardiac failure : A febrile pleural effusion in a patient with LV dysfunction .
Is it a transudate or exudate ? How to confirm the pleural effusion is primarily cardiac failure related ?
When the classical protein criteria is inadequate or prone for errors
Try this more specific marker within the pleural fluid
N-Terminal Brain naruretic [...]
Everything about radial artery spasm and friction
Posted in Cardiology -Interventional -PCI, Uncategorized, tagged femoral artery, radial artery, radial artery friction, radial artery spasm, radial coronary angiogram on April 16, 2009 | Leave a Comment »
Radial access for both diagnostic coronary angiogram and PCI has been increasing steadily.Many centres have adopted an exclusive radial approach. Newer , radial specific hard ware is being produced.(Link) .It is surprising , radial approach has gained momentum primarily outside USA (Europe , Japan, India ).The advantages of radial access is primarily , patient comfort, [...]
Can premature beats (Ectopic beats) occur in SA node ? Yes, it can . It’s called sinus premature systole.
Posted in Cardiology - Clinical, Cardiology - Electrophysiology -Pacemaker, cardiology -ECG, tagged apd, atrial premature beats, atrial premature depolarisation, ectopic beats, jpd, sinus extrasystole, sinus node, sinus premature beats, sinus premature systole, ventricular premature depolarisation, VPD on April 14, 2009 | Leave a Comment »
Ectopic beats or premature depolarisations are the commonest cardiac arrhythmia encountered . Human heart , is a non stop electro mechanical organ , and it is not surprising ectopic beats are so common and can literally originate from every cell of heart. But , generally it emanates primarily from the special conducting cells . At [...]
Can right ventricular pacing produce an ECG with RBBB morphology ?
Posted in Cardiology - Electrophysiology -Pacemaker, Cardiology-Arrhythmias, cardiology -ECG, tagged coronary sinus apcing, electro physiology, lbbb, lv pacing, pacemaker, pacemaker lead perforation, rbbb, rv pacing, rv pacing with rbbb morphology, septal pacing on April 13, 2009 | 1 Comment »
Pacemaker rhythms result in classical ECG with LBBB morphology.It is a universally understood fact that RV pacing would produce LBBB and LV pacing a RBBB pattern in surface ECG.As with any other rules in medicine , it is not 100% perfect .(May be 70%)
In the process of oversimplification of rules we have forgotten a simple [...]
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