…the left in the thorax. This positions the basal portion of the left lateral wall posteriorly in thorax (Figure 1). This area is most frequently…

…have improved by the time of medical evaluation, because transient or evolving ischaemia may still require urgent reperfusion assessment. Posterior myocardial infarction may be electrically…

…causes left posterior fascicular block (LPFB) . In a fascicular block, the myocardium without fascicular supply will depend on impulses spreading from other parts of the…

…anomaly is characterized by the following malformations: The septal and posterior leaflets of the tricuspid valve adhere to the ventricular myocardium (failure of embryological delamination)…

…and P3 (posterior or lateral scallop). Figure 1. Anatomy of the mitral valve The leaflets are connected to the papillary muscles via chordae tendineae (Figure…

…but posterior circulation stroke is the most important dangerous differential diagnosis. Clear focal neurological findings are absent in roughly half of patients with a central…

…Choice of site The posterior superior iliac spine is the standard site for both aspiration and biopsy in adults. Here the posterior part of the…

…PE) ↓ ↑ ↑ ↓ Vital signs and measures of perfusion Parameter Normal Comment : : : Heart rate 50–100/min MAP 70–105 mmHg Target ≥ 65…

…The patient sits upright on the couch, far enough forward that the head will extend beyond the end of the couch when laid down. 2…

…to adults in sinus rhythm, recorded at a paper speed of 50 mm/s with 1 mV = 10 mm. At 50 mm/s a…

…Posterior shoulder dislocation, which is often associated with fracture and requires an orthopaedic surgeon. Dislocation of a native hip (as opposed to a prosthesis) — a…

…assessment of regional wall motion (left ventricle) TYPE OF MOTION DEFINITION WALL MOTION SCORE Normal Normal thickening (typically 30% thickening from end diastole to end…

…V7, V8 and V9 in patients with high suspicion of posterior acute myocardial infarction (e.g due to reciprocal ST segment depressions in V1, V2…

…The upper boundary of this circuit may be located either anterior or posterior to the superior vena cava. A critical area of slow conduction is…

…devices. Electrode position (anterior posterior vs. antero lateral) does not affect success, but active compression of the pads lowers defibrillation thresholds and improves success, and…

…posterior infarction signs, and terminal QRS distortion—compared to standard STEMI criteria. Observational data suggest that up to 30% of patients initially classified as NSTEMI…

…the bundle of His, which bifurcates into the right and left bundle branches. The left bundle branch further divides into the anterior and posterior fascicles…

…dominance vs. right dominance The coronary artery that supplies the PDA (posterior descending coronary artery), which supplies the inferior wall of the left ventricle, determines…

…the dorsum of the foot lateral to the extensor hallucis longus tendon. Measure in the same way as on the arm. 4. Posterior tibial artery…

…sterile gauze, and a fenestrated drape for injection. A needle of 0.8–1.2 × 50 mm for large joints (knee, shoulder), 0.5–0…

…the mask downwards along the posterior pharyngeal wall in a smooth movement until a clear resistance is felt — the tip of the cuff then lies…

…to the floor of the nose — that is, straight backwards, not upwards towards the bridge of the nose. The resistance at the posterior pharyngeal wall…

…to the lateral border of the rectus abdominis — this avoids the inferior epigastric artery, which runs on the posterior aspect of the rectus muscle along…

…pressure Marked respiratory variation in mitral and tricuspid inflow The echocardiographic counterpart of pulsus paradoxus Contraindications In overt tamponade with shock there are no absolute…

…temple, the accessory nerve in the posterior triangle of the neck, and the superficial nerves of the forearm and the dorsum of the hand. Preparation…

…or polyps. Examination of the posterior pharyngeal wall may reveal secretions or a cobblestoned appearance of the mucosa. Laryngoscopy may be performed to assess for…

…ECG machine. The axis can also be approximated manually by judging the net direction of the QRS complex in leads I and II. The following…

…ECG machine. The axis can also be approximated manually by judging the net direction of the QRS complex in leads I and II. The following…

…RCA) proximal segment (1) medial segment (2) distal segment (3) posterior descending artery (PDA) (4) Additional coronary artery segments : RPLB : Posterolateral branch of the right…

…nodal branch (AV), right posterior descending artery (RPDA, 4), and right posterolateral branch (RPLB, 16). The LMCA (5) bifurcates into the proximal (6), mid (7)…

…50 mm/s. ECG examples of right bundle branch block (RBBB) and left bundle branch block (LBBB). The cardiac conduction system The cardiac conduction system…

…the left in the thorax. This positions the basal portion of the left lateral wall posteriorly in thorax (Figure 1). This area is most frequently…

…branch. Coronary artery dominance The coronary artery that supplies the PDA (posterior descending coronary artery), which supplies the inferior wall of the left ventricle, determines…

…The urgency varies: Object Urgency : : Button battery Immediately — leakage of fluid causes a chemical burn Two or more magnets (including in different nostrils) Immediately — pressure…