…effect in anterior bleeding. Raise the chair so that the patient's nose is at your eye level. The patient sits upright and tilts the…

…45° and 90°. The QRS duration will be slightly prolonged (the prolongation ranges between 0.01 to 0.04 seconds). ECG criteria for left anterior…

…be fenestrated and swing into the RVOT, obstructing the outflow. Reumatic heart disease Thickened chordae tendineae . Thickened leaflet tips. Reduced leaflet mobility. Left sided rheumatic…

…of the left anterior descending artery was associated with lower five year survival than a more distal lesion. Revascularisation improves myocardial blood flow and angina…

Echocardiography Myocardial ischemia and infarction Definition and pathophysiology Left ventricular (LV) thrombus is an intracavitary clot attached to the LV endocardium, typically overlying an akinetic…

…acute coronary syndromes. The LMCA supplies a large myocardial territory through the left anterior descending (LAD) and left circumflex (LCx) arteries (Figure 1). Acute obstruction…

…Figure 1). The anterolateral papillary muscle receives blood supply from the left anterior descending artery (LAD) and the left circumflex artery (LCX), whereas the posteromedial…

…For example, if there is acute ischemia located in the anterior wall and there is ST segment elevation in lead V3, then there should also…

…given off by the RCA (and otherwise the LCx). Left anterior descending coronary artery (LAD) The LAD supplies the anterior two thirds of the interventricular…

…and the U wave must not be included. Electrical axis Electrical axis Interpretation : : −30° to +90° Normal −30° to −90° Left axis deviation — left anterior…

…preferably anteroposteriorly : one anteriorly over the praecordium to the left of the sternum, the other on the back between the left scapula and the spine…

…CTI) at the inferior boundary, and ascends in a caudocranial direction along the interatrial septum. The left atrium is activated passively. The upper boundary of…

…The intramyocardial segment is termed the tunnelled artery. The left anterior descending artery (LAD) is most commonly involved. The reported prevalence depends substantially on the…

…While often retrosternal, the pain may be localized to the left anterior chest and can radiate to the neck, shoulders, and arms, sometimes following the…

…reduction of blood flow to tissues and organs. A few decades later Cohnheim demonstrated that ligation of the left anterior descending artery in dogs resulted…

…anterior infarction. Ventricular free wall rupture Free wall rupture may be catastrophic or subacute. In the catastrophic form, an acute tear causes haemopericardium, tamponade, and…

…recorded indirectly as reciprocal abnormalities in the anterior precordial leads. Acute myocardial ischaemia alters the resting membrane potential and action potential duration of affected myocardial…

…extent and degree of myocardial involvement The anatomical territory, including anterior, inferoposterolateral or right ventricular involvement Pre existing abnormalities such as prior infarction, left bundle…

…and use of biphasic defibrillators , which are standard due to superior efficacy over monophasic devices. Electrode position (anterior posterior vs. antero lateral) does not affect…

…absence of sounds on the affected side. Ultrasonography can reveal pneumothorax (highlighted by a lack of lung tissue) and its impact on cardiac function. Clinically…

…The left anterior descending coronary artery ( LAD ). The left circumflex coronary artery ( LCX ). Figure 1 is important, as it shows the coronary arteries and their…

…the right and left bundle branches. The left bundle branch further divides into the anterior and posterior fascicles. Both the right bundle branch and the…

…cardiac conduction system and the vascular supply. RCA = right coronary artery. LAD = Left anterior descending coronary artery. LCX = left circumflex coronary artery…

…artery can also be sought anterior to the lateral malleolus. Calculation: for each leg, the highest of the dorsalis pedis and posterior tibial pressures is…

…anterior superior iliac spine is a second line alternative in marked obesity or when the supine position is necessary. After previous punctures: change side, and…

…the patient's usual glasses and then through a pinhole. This is done before any drops. 2. Inspect the eyelids, conjunctiva, cornea and anterior chamber…

…towards the anterior superior iliac spine and the middle finger extended along the iliac crest. Inject into the triangle between the index and middle fingers…

…large patient. The anterior approach, just lateral to the coracoid process, is an alternative but lies closer to the brachial plexus and the vessels. The…

…linea alba, but requires an empty bladder and is rarely used in large volume ascites. Diagnostic paracentesis 1. Scan the left lower quadrant. Confirm at…

…Procedure Anterior shoulder dislocation The commonest of all dislocations. There is a hollow beneath the acromion, the arm is held in slight abduction and external…

…Lesion location also matters: stenoses in the left main stem or proximal left anterior descending artery are more likely to affect flow because they supply…

…risk factor for death [15]. For patients with LBBB and a left ventricular ejection fraction (LVEF) $< 35%$, the implantation of a defibrillator or…

…solely as an isolated coronary event. SCAD predominantly affects the left sided coronary circulation and may involve multiple vessels. Pregnancy associated SCAD can occur at…

…prolonged, produces multiorgan dysfunction and death. In the setting of ST elevation myocardial infarction (STEMI), cardiogenic shock most commonly reflects severe left ventricular (LV) dysfunction…

…Left anterior fascicular block is diagnosed if the axis is between 45° and 90° with qR complex in aVL and QRS duration 0,12 s…

…Left anterior fascicular block is diagnosed if the axis is between 45° and 90° with qR complex in aVL and QRS duration is 0,12…

…cycle repeatedly to the circumflex artery before a 60 minute occlusion of the left anterior descending coronary artery (LAD) would reduce the infarct size by…

…IA, IC and III antiarrhythmics. Tricyclic antidepressants . Lithium. Cholinesterase inhibitors. Methyldopa. Reserpine. Clonidine. Conditions Myocardial ischemia, myocardial infarction (can cause permanent bradycardia, particularly anterior infarctions)…

…This is due to the fact that the left ventricle pumps against greater resistance and any disturbance in ventricular activation will reduce the efficiency of…

ECG Myocardial ischemia and infarction Coronary artery disease (ischemic heart disease) Coronary artery disease, which is synonymous with ischemic heart disease, is the most common…

…such as heart failure, structural heart disease, fibrosis of the conduction system and acute myocardial infarction (particularly anterior STEMI). Hence, an acute myocardial infarction may…

…bifurcates into the left bundle branch (LBB) and the right bundle branch (RBB). The left bundle branch further divides into the anterior and posterior fascicles…

…lateral ) and the apex (Table 2). Table 2. The 17 segments of the left ventricle Basal Segments Mid cavity Segments Apical Segments 1. basal anterior…

…placed diagonally between V2 and V4. V4: placed on the left medioclavicular line between rib 5 and 6. V5: placed on the anterior axillary line…

…LAD (left anterior descending artery). This ECG pattern is referred to as de Winter's ECG . Figure 3 provides all clinically relevant differential diagnoses, and…

…anterior , lateral and septal wall ( Figure 2 below). An inferior myocardial infarction refers to an infarction located in the inferior wall of the left ventricle…

…ventricle in the thorax. It is localized immediately behind the sternum and thus is the most anteriorly located part of the heart. The right ventricle…

…liver, lung or vessel lies in the path of the needle. Access Puncture site Direction Comment : : : : Subxiphoid 1–2 cm below and to the left