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Archive for November, 2008

                                            The science of medicine has evolved over 2000 years since the stone age days.It has  currently reached  a glorious era with  cutting edge  scientifc  technology .Today  one can map the entire human genetic blue print and intervene in the  disease  even before they manifest .One can   keep dying people alive for years with multi organ transplantation. Modern medicine has [...]

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                                                                                                A normally  functioning  circulatory system is vital for our survival . We have about 6000 ml of  blood, circulating  all over the  body in an  approximate time of 15-20 seconds.The pressure at which this blood moves across the body is called the blood pressure . Hypertension  or simply , high blood pressure is an undesirable  hemodynamic [...]

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                                        Angina pectoris , classically occur on exertion and gets relieved on rest .This is called typical chronic stable angina as described by Heberden (CSA ) .  Unstable angina(UA), the term originally described by Noble O Fowler in early 1970s. ( Also being referred as  intermediate coronary syndrome , preinfarction angina etc).The definition for unstable angina has evolved  over the years  and currently  refers to .
 1.All [...]

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          During CABG arterial grafts are always preferred over venous grafts , for the simple reason the grafted vessel has to carry arterial blood and not the venous blood. Saphenous veins are tuned to carry venous blood at low pressure.The mean coronary arterial pressure is around 40mmhg and this will damage the saphenous venous endothelium more quickly. [...]

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                                Coronary artery  by pass graft surgery has become the most common cardiac surgery done world over ever since it was first introduced by Favalaro in 1969.The common indications  are, triple vessel disease and left main disease in any of the following situationsE.
Elective CABG(Non emergent)
1.Chronic stable angina
Either emergent or elective
1.Unstable angina
Emergency CABG*
1.Acute myocardial infarction.-Cardiogenic shock
2.Failed [...]

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                                This is a  hemodynamic concept paper by Libanoff in 1968 published in circulation.This paper elegantly proved that  the rate of fall of pressure across the mitral valve will predict the mitral valve orifice.     This key paper formed the foundation on which  Liv hatle developed the echocardiographic pressure half time .This pressure half time derived [...]

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Is it true , once a patient is labelled as a hypertensive he remains  hypertensive life long ? Is it possible to withdraw antihypertensive drugs  permanently ?

Systemic  hypertension is the most common clinical entity and it forms the bulk of the physician consultations world over.
The anti hypertensive drugs are  one of the most commonly  prescribed [...]

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                                     Hypertension is considered a major cardiovascular risk factor.Hypertension  can have multiple physiological and pathological effects on heart . The common response to  raised arterial pressure is the hypertrophy of the left ventricle ( LVH). This can increase the risk of heart failure in few ( Mainly diastolic failure)  It is a leading cause for stroke  and   less often [...]

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