…venous system, resulting in dilation of vena cava inferior ( 2.1 cm). Severe tricuspid regurgitation may lead to systolic reversal in the hepatic veins. This…

…left ventricular dilation may precede the development of increased left ventricular hypertrophy and mass. Initially, myocardial abnormalities may be subclinical. Progressive dilation can subsequently impair…

…clinical patterns of AF—paroxysmal, persistent, long standing persistent and permanent—and is not determined solely by the apparent frequency or duration of documented episodes…

…etc. ) may ultimately lead to ventricular dilation. However, the term dilated cardiomyopathy (DCM) refers to idiopathic or genetic dilation of the left ventricle . Patients with…

…with left ventricular dilation. This type of cardiomyopathy, referred to as tachycardia induced cardiomyopathy , can be caused by any tachyarrhythmia leading to prolonged periods of…

…may also lead to left ventricular dilation, which is referred to as ischemic cardiomyopathy (Dilated Cardiomyopathy). Ventricular dilation leads to dilation of the mitral annulus…

…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…

…prevent, or alleviate, the pressure increase in the left ventricle and left atrium. Chronic aortic regurgitation leads to dilatation and hypertrophy of the left ventricle…

…of both thromboembolic and hemorrhagic risks. The diagnostic prerequisite for clinical AF remains the documentation of the arrhythmia via a standard 12 lead ECG or…

…deep veins of the legs or pelvis. Thrombi formed in the deep veins in the legs or pelvis can detach and flow via inferior vena…

…or other ECG changes (see below) should lead to a suspicion of ARVC. The gradual loss of myocardium leads to ventricular dilation and right heart…

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…For better or worse, ejection fraction has become virtually synonymous with left ventricular function. An obvious drawback with the use of the ejection fraction is…

…reference to the intravenous antihypertensive drugs used in a hypertensive emergency. It summarises the mechanism of action, the onset, the duration of effect, the dosing…

…third vector: the ventricular free wall The vectors resulting from activation of the ventricular free walls is directed to the left and downwards ( Figure 7 )…

…a patient on digoxin treatment 1 ECG signs of left atrial enlargement 3 Left axis deviation 2 QRS duration ≥90 milliseconds 1 Prolonged R wave…

…across the mitral valve using pulsed Doppler. Estimating left ventricular filling pressure via e' . Measurement of deceleration time (DT) . Diastolic function can be estimated from…

…The duration of the P wave will exceed 120 milliseconds in lead II. Biatrial abnormality/enlargement Biatrial abnormality implies that the ECG indicates both left…

…the articles on left ventricular enlargement, right ventricular enlargement and atrial enlargement. Below follows a discussion on the principles and differences of dilatation and hypertrophy…

…the left ventricle partially or entirely outside the specialized conduction system. This slower conduction results in a prolonged QRS duration. The defining features of LBBB…

…duration exceeding 140 msec in males and 130 msec in females , along with slurring or notching of the mid QRS in at least two left…

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

…of the P wave depends on where the atrial lead is fixed. Typically, the atrial lead is fixed next to the right atrial appendage, or…

…in aVL and QRS duration 0,12 s, provided that other causes of left axis deviation have been excluded. Causes of extreme axis deviation Extreme…

…in aVL and QRS duration is 0,12 s, provided that other causes of left axis deviation have been excluded. Causes of extreme axis deviation…

…VT]). The VF waveform is initially coarse ( i.e fibrillatory waves have large amplitudes) but as the duration of VF is prolonged, the amplitude gradually…

…reflection of the electrical potentials generated by the left ventricle. QRS duration QRS duration is the time duration from the start to the end of…

…complex is actually a reflection of left ventricular depolarization. QRS duration is the time interval from the onset to the end of the QRS complex…

ECG Hypertrophy and dilatation Biventricular hypertrophy Simultaneous hypertrophy of the left and right ventricle is rather common. The ECG has low sensitivity with respect to…

…ECGs showing left and right ventricular hypertrophy. Next chapter Biventricular Hypertrophy Related chapters Overview of Hypertrophy and Dilatation Left Ventricular Hypertrophy Atrial Hypertrophy and Dilatation …

…prolonged duration of effect, and significant individual variations in its effect. Drug Enalaprilat Brand names Vasotec IV ® Indications Hypertension and hypertensive emergency. Acute left…

…low risk of pneumothorax Uncomfortable for an awake patient, harder to keep the dressing clean with a tracheostomy or copious secretions Subclavian vein Most comfortable…

…usually visible on plain films. Irrigation fluid: a copious volume of drinking quality tap water or sodium chloride 9 mg/mL. The volume matters more…

…lead V1 and qRS pattern in V6 with QRS duration <120 ms) D: Profound sinus bradycardia (<30 beats/min or sinus pauses ≥3 s) Explanation:…

…therapies have failed. Patients with structural heart disease or reduced left ventricular function are not eligible. Effects of propafenone and flecainide on ECG, heart rhythm…

…and Pathophysiology Posterior myocardial infarction is myocardial necrosis involving the posterior region of the left ventricle, usually as part of an inferoposterior or posterolateral infarction…

…the full range of left ventricular ejection fraction and may result from systolic dysfunction, diastolic dysfunction, or both. The clinical consequences of extracellular volume expansion…

…the ventricle is empty or nearly empty). In patients with an initial shockable rhythm, compressions and ventilation can extend the duration of the shockable rhythm…

…from dilating adequately during diastole. This leads to increased and equivalent diastolic pressure in all rooms. Because pressure is high in the atria, filling of…

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

…duration: left bundle branch block. Right bundle branch block. Non specific intraventricular conduction delay. Hyperkalaemia. Class I antiarrhythmic drugs. Tricyclic antidepressants. Phenothiazines. Ventricular beats or…

…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

…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 …

…the setting of ischemic heart disease or reduced left ventricular ejection fraction (LVEF). Sustained VT: Defined as VT lasting longer than 30 seconds or requiring…

…of action 5 to 10 minutes Duration of action 2 to 4 hours Delivery IV Dose Can be given as repeated intravenous bolus injections or…

…patients with suspected or established coronary artery disease (CAD). It combines echocardiographic assessment of left ventricular (LV) structure and function with exercise or pharmacological stress…

…delay is defined as “a QRS duration greater than 110 ms in adults, greater than 90 ms in children 8 to 16 years of age…

…be added when symptoms persist or when heart rate, blood pressure, left ventricular dysfunction, contraindications, or intolerance limit escalation of beta blocker or CCB therapy…

…hours or unknown duration An anticoagulant for at least 3 weeks before cardioversion, or alternatively transoesophageal echocardiography to exclude thrombus After cardioversion, irrespective of duration…

…of fibrillation of unknown duration without anticoagulation can cause a stroke hours to weeks later. Everything else in the procedure is routine. Synchronised cardioversion or…

…depolarization of the right ventricle relies on electrical impulses originating from the left ventricle. However, these impulses propagate slowly as they travel partially or entirely…

…vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible functional occlusion and usually causes transmural ischaemia. The resulting abnormalities in left ventricular…

…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…

…consequences include left ventricular hypertrophy, left atrial enlargement, and abnormalities of diastolic filling. Mitral regurgitation may develop through papillary muscle displacement, annular dilatation, or both…

…left ventricular systolic function is depressed or preserved Whether hypotension is present Whether an accessory pathway is suspected, particularly before administration of digoxin The duration…

…Treatment of Cardiogenic Shock. N Engl J Med 2021; 385:516 525 Indications Severe left ventricular failure, acute or chronic. Severe biventricular failure, acute or…

…Approximately 50% of patients with unstable angina progress to myocardial infarction within 30 days if left untreated. Moreover, the pathophysiology of NSTEMI and unstable angina…

…duration ≥40 ms suggest ventricular tachycardia. Duration from start of QRS complex to nadir of S wave ≥60 ms suggests ventricular tachycardia. V6 : QR or…

…Note that narrow complex tachyarrhythmia rarely causes circulatory compromise or collapse. Causes of tachycardia (tachyarrhythmia) with wide QRS complexes (QRS duration ≥0,12 s) : ventricular…