…the majority of all anterior bleeds. Step 2 — cautery 1. Suction clear and identify the bleeding point with a nasal speculum and a head lamp…

…the anterior wall of the left ventricle; (2) the posterior (posteroinferior) fascicle , which delivers the electrical impulse to the posterior and inferior walls of the…

…normally consists of three leaflets (anterior, posterior and septal leaflet). The leaflets are attached to the subvalvular apparatus, consisting of the chordae tendineae and the…

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

…with extensive anterior or transmural infarction, apical dysfunction, LV aneurysm formation, and reduced LV systolic function. The principal mechanisms are the combination of an abnormal…

…rare but catastrophic manifestation of acute coronary syndromes. The LMCA supplies a large myocardial territory through the left anterior descending (LAD) and left circumflex (LCx…

…P1 (anterior or medial scallop), P2 (middle scallop), and P3 (posterior or lateral scallop). Figure 1. Anatomy of the mitral valve The leaflets are connected…

…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…

…these arteries branch of after the right marginal artery) may be given off by the RCA (and otherwise the LCx). Left anterior descending coronary artery…

…120 ms with a delta wave and QRS 110 ms. Brugada pattern type 1: ST elevation ≥ 2 mm of coved type with a negative T…

…without current symptoms, alternating bundle branch block in acute anterior infarction, and before drugs or procedures with a known risk of bradycardia. Transvenous pacing is…

…and ascends in a caudocranial direction along the interatrial septum. The left atrium is activated passively. The upper boundary of this circuit may be located…

…and an intramural course. An anomalous left coronary artery is less common but more malignant than an anomalous right coronary artery. Anomalous origin of a…

…present [5]. Distinguishing Features: Pleuritic pain suggests pulmonary infarction, and a history of pain exacerbation with inspiration, along with a pleural friction rub, helps differentiate…

…that ligation of the left anterior descending artery in dogs resulted in myoardial infarction. An important discovery was reported in 1930 when Buchner and colleages…

…approximately 1–2% without reperfusion to about 0.2% in the reperfusion era. Clinical presentation and symptoms A new episode of hypotension, recurrent chest pain…

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

…acute, evolving or chronic The severity of ischaemia and whether infarction has occurred The extent and degree of myocardial involvement The anatomical territory, including anterior…

…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…

…Clarke RC, Mertes PM, et al. Molecular mechanisms and pathophysiology of perioperative hypersensitivity and anaphylaxis: a narrative review. Br J Anaesth 2019; 123:e3849. Wallmuller…

…of the aortic bulb. The left main coronary artery ( LMCA ) originates from the left anterior aspect of the aortic bulb. The LMCA is short and…

…part of the QRS complex as an R’ wave (pronounced "R prime"), which is directed anteriorly and rightward. Due to the abnormal depolarization sequence of…

…of blood supply. Figure 1. The component of the cardiac conduction system and the vascular supply. RCA = right coronary artery. LAD = Left anterior…

…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…

…injury is to measure and document the visual acuity before anything else is done. The second most important is to look for signs of perforation —…

…L) — choose the subcutaneous route if possible, otherwise give IM with a fine needle and 5 minutes of compression. Anticoagulant treatment is not in itself…

…or nerves, and the landmark — the posterior corner of the acromion — is easy to palpate even in a large patient. The anterior approach, just lateral…

…lies about 3–5 cm superior and medial to the anterior superior iliac spine and lateral to the lateral border of the rectus abdominis — this…

…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…

…or proximal left anterior descending artery are more likely to affect flow because they supply a larger myocardial territory. The response of the coronary circulation…

…leads [7]. These stricter parameters correlate more closely with abnormal LV mechanical function and the potential benefit of resynchronization pacemaker therapy [7]. R Wave Peak…

…than NSTEMI, and up to two thirds of infarctions are anterior. The risk of ACS is greatest during the third trimester and postpartum period, although…

…with temporary mechanical circulatory support (MCS) considered as a bridge. Clinical Presentation and Symptoms Symptoms of STEMI The usual symptom is severe, prolonged ischemic discomfort…

…longitudinal axis (to the left and downwards). Figure 38 shows the coordinate system where the green area displays the range of the normal heart axis…

…Figure 38. The electrical axis of the heart (heart axis). As evident from the figure, the normal heart axis is between –30° and 90°. If…

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

…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)…

…the level of the origin of the anterior papillary muscle. A network of Purkinje fibers sprouts out from the bundle branches and fascicles and spread…

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

…There are numerous causes of LBBB, such as heart failure, structural heart disease, fibrosis of the conduction system and acute myocardial infarction (particularly anterior STEMI)…

…of His, which bifurcates into the left bundle branch (LBB) and the right bundle branch (RBB). The left bundle branch further divides into the anterior…

…into six segments of 60° each. The segments along the circumference are basal anterior , basal anteroseptal , basal inferoseptal , basal inferior , basal inferolateral , and basal anterolateral…

…leg electrodes are placed proximally on the thighs and arm electrodes are placed proximally on the upper arm. Placement of chest (precordial) electrodes are not…

…American and European guidelines assert that the ST segment must be either downsloping or horizontal. Otherwise, ischemia is unlikely to be the cause of the…

…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…

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

…a raised filling pressure Marked respiratory variation in mitral and tricuspid inflow The echocardiographic counterpart of pulsus paradoxus Contraindications In overt tamponade with shock there…