…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

…is because it does not ensure complete drainage of the pericardium, and needles or catheters are at risk of bending or damage during chest compressions…

…objective, particularly in patients with left ventricular dysfunction and/or MVD. Nevertheless, the optimal extent and timing of intervention depend on the clinical setting, haemodynamic…

…Thus, with regards to measuring ventricular dimensions, trabeculae and papillary muscles are considered part of the left ventricular cavity. Other dimensions– including atrial dimensions, mitral…

…of the most popular ECG books and resources Recognizing that many visitors are interested in other books and online resources, we have plowed through more…

…is also constant. Atria and ventricles are depolarized separately. The ventricular rhythm is an escape rhythm arising in the AV node or bundle of His.

…features of third degree AV block On the ECG P waves have no relation to the QRS complexes. The QRS complexes may be normal or…

Cardiology Clinical medicine Definition and cardiovascular rationale Smoking cessation is the complete discontinuation of tobacco smoking, with avoidance of second hand smoke and, where possible…

…left ventricular ejection fraction, procedural factors and anticipated outcomes. The supplied material does not describe specific physical signs of CTO or a dedicated physical examination…

…direction of the QRS complex The QRS complex can be classified as net positive or net negative, referring to its net direction. The QRS complex…

…needed. Intubate for a threatened airway, a marked risk of aspiration, or failure that is not rapidly reversed by an antidote B Respiratory rate, saturation…

…lactate, two sets of blood cultures, and a culture from the likely focus 0 to 15 min Ringer's acetate for hypotension or hypoperfusion, usually…

…necessary ECG skills required for clinical work. You must complete the ECG course in order to obtain your certificate. New ECG test will be added…

…partial occlusion of the artery (i.e. coronary blood flow is not completely obstructed). NSTE ACS typically presents with ST segment depressions and/or T…

…the conventional 12 lead ECG. These situations are as follows: Transmural ischemia located in the posterolateral portion of the left ventricle . Transmural ischemia located in…

…for a complete diagnosis or for grading. Antihistamines, corticosteroids, inhaled bronchodilators and nebulised adrenaline never replace intramuscular adrenaline [1,2]. Delayed administration of adrenaline is…

…A score of 3 or more indicates a difficult intubation — call for help and get out the videolaryngoscope and plan B before you give the…

…5. With severe symptoms: give hypertonic saline immediately. Do not wait for a complete work up of the cause or for imaging. 6. Document the…

…QRS complexes; do not delay pacing in order to try yet another dose. Chronotropic support is given as an infusion of isoprenaline, adrenaline or dopamine…

…apparently lesser narrowing are physiologically important. Lesion location also matters: stenoses in the left main stem or proximal left anterior descending artery are more likely…

…along with slurring or notching of the mid QRS in at least two left facing leads [7]. These stricter parameters correlate more closely with abnormal…

…that improve or resolve after reducing the dose or stopping therapy. It is divided clinically into: Complete intolerance: inability to tolerate any dose of any…

…A complete airway obstruction results in PEA and cardiac arrest within 8 minutes. Cardiac arrest as a result of asphyxia or hypoxia is managed according…

…20 th week of pregnancy, or when the fundal height surpasses the umbilicus, the uterus should be manually displaced to the woman's left side …

…or infarction involving the anterior, septal, and lateral walls, and the posterior wall if the LCx supplies the posterior descending artery (PDA) in a left…

…the transmission of impulses. Intense parasympathetic activity can result in a complete blockage of impulse conduction. If such blockage persists for 6 seconds or more…

…Infarction (NSTEMI) or unstable angina (UA), is attributed to the greater extent of ischemia present in STEMI. In STEMI, a complete coronary artery occlusion leads…

…of the T waves. These T waves are called post ischemic T waves and they indicate that the infarction process is more or less completed…

…features or an inadequate response. First line treatment is oxygen in hypoxaemia, repeated doses of an inhaled short acting β2 agonist, ipratropium in more severe…

…exact clock time of symptom onset or the time last known to be well NIHSS A complete score by a physician or nurse experienced in…

…interchangeable nozzles, or a cryoprobe for contact technique. Cotton buds for small lesions (these give a more superficial and less controllable depth of freeze). A…

…to 6 hours or more. Discuss this with the poison control centre. Gastric lavage is considered only after a life threatening ingestion of a highly…

…passed. An attempt can convert a partial rupture into a complete one. Contact the urologist or the surgeon on call for urethrography and suprapubic drainage…

…Warfarin has a narrow therapeutic index, a half life of several days and more than a hundred clinically relevant interactions. What determines whether the treatment…

…by itself, establish the presence or haemodynamic significance of a specific stenosis. Clinical Role and Indications CAC scoring is principally a risk stratification tool for…

…to patients with symptoms. Current guidance supports revascularisation for significant left main stenosis irrespective of symptomatic status or the documented ischaemic burden. In chronic coronary…

…location and complexity of coronary stenoses. Higher scores indicate more diffuse or technically complex disease and are associated with a greater relative advantage for CABG…

…Complete transection of a papillary muscle may cause immediately overwhelming MR. Partial rupture, often involving the tip or head of the muscle, more commonly produces…

…separate chapter discusses Long QT syndrome (LQTS). A complete list of drugs causing QT prolongation can be found here. Corrected QT intervals (QTc) can be…

…This evaluation should include a detailed history, thorough questioning of eyewitnesses, and a complete physical and neurologic examination. Blood pressure and heart rate should be…

…and the ensuing atherothrombosis, causes a complete occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial…

…causing microvascular embolization (i.e occluding smaller vessels downstream). The thrombosis causes occlusion of the artery; blood flow may be partially or completely obstructed. Consequently…

…is subdivided into the following two fascicles: (1) the anterior (anterosuperior) fascicle , which delivers the electrical impulse to the anterior wall of the left ventricle…

…if the QRS complexes are wide there is a risk of distal block which may progress to more advanced block (second or third degree AV…

…obstructive left main coronary artery stenosis Moderate to severe aortic stenosis with uncertain relation to symptoms Tachyarrhythmias with uncontrolled ventricular rates Acquired advanced or complete…

…of sinus arrest (or any scenario in which atrial impulses do not reach the atrioventricular node), junctional escape rhythm may be life saving. During complete…

…Clinical judgment remains a more reliable tool for evaluating ischemia in these cases, a point emphasized in recent guidelines. Implications of left bundle branch block…

…of LBBB is the prolonged QRS duration. A QRS duration of 120 ms (0.12 s) or more is required to diagnose a complete left…

…is caused by a complete coronary artery occlusion, which results in the complete stop of blood flow and thus more extensive myocardial ischemia (referred to…

…S wave or R wave. Fragmented QRS complexes are indications of previous myocardial infarction. There are imaging studies demonstrating that QRS fragmentation is more common…

…left lateral decubitus position. This affects images obtained in apical windows (refer to Standard Transthoracic Echocardiogram: Complete Imaging Protocol). Nevertheless, there are obvious benefits of…

…Premature ventricular contractions in bigeminy. Two consecutive premature ventricular contractions are referred to as a pair or couplet. If 3 to 30 premature ventricular contractions…

…being followed by QRS complexes. This condition is further categorized into two distinct subtypes: type 1 (also known as Mobitz type 1 or Wenckebach block)…

…and the ensuing atherothrombosis, causes a complete occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial…

…The mitochondrial density allows for complete replenishment of ATP within 10 seconds (Fell et al, Houtkooper et al). The majority of ATP produced is utilized…

…ms). Increasing the number of ultrasound lines or image depth will reduce the frame rate since more time is required to complete each frame. Thus…

…seconds). The QRS complex is wide simply because the ectopic impulses that cause these rhythms spread partially or entirely outside of the ventricular conduction system…

…ml and administered over 10 minutes. A maximum of two infusions can be given. Each infusion should be completed, even if the patient reverts to…

…event of bradycardia, bronchospasm, marked salivation or increasing weakness, and give atropine. 8. Monitor for at least 30 minutes after the test has been completed…

…than a routine referral being made. Two or more magnets constitute the same kind of urgency by a different mechanism. They attract one another through…