57 träffar

ArticleCardiology
Cardiac amyloidosis

…antihypertensives, should prompt clinical suspicion [1]. Cardiac Signs and Symptoms Patients often present with symptoms of predominant right heart failure, including lower extremity edema, ascites…

ArticleProcedurer
Pericardiocentesis

…of the most useful signs Low voltage on the ECG, electrical alternans Supportive; it does not exclude Diastolic collapse of the right atrium and right…

ArticleCardiology
Diuretic Strategy and Decongestion in Heart Failure

…impaired renal venous outflow and persistent right sided congestion may be important mechanisms. Diuretics relieve the hemodynamic consequences of congestion by producing a negative sodium…

ArticleEchocardiography
Left ventricular diastolic function

…using pulsed Doppler. The sample volume (in apical view) is placed at the tips of the mitral valve leaflets (Figure 2, top right). The rapid…

ArticleCardiology
Ventricular Tachycardia

…bundles of myocytes that form the slow conducting isthmuses critical for re entry [6] . Non ischemic dilated cardiomyopathy (NICM), hypertrophic cardiomyopathy (HCM), and arrhythmogenic right…

ArticleCPR
Causes of sudden cardiac arrest

…episodes of myocardial ischemia, do not cause ventricular arrhythmias and cardiac arrest. It is clear that only a negligible fraction of all episodes of myocardial…

ArticleKunskapsbas
🟠 Left ventricular dimension and systolic function

…Left ventricular function (ejection fraction) Women Men Normal Mildly abnormal Moderately abnormal Severely abnormal Normal Mildly abnormal Moderately abnormal Severely abnormal LINEAR METHOD Endocardial fractional…

ArticleCPR
Risk factors for sudden cardiac arrest

…99% of all cardiac arrests caused by ventricular tachyarrhythmias (which are the majority of cases). Yet, only a negligible fraction of all victims of cardiac…

ArticleKunskapsbas
🟠 SYNTAX Score II

…renal function, left ventricular ejection fraction) to provide a more personalized risk assessment. Key Variables in SYNTAX Score II Anatomical SYNTAX Score : Derived from the…

ArticleEchocardiography
Doppler effect and Doppler echocardiography

…Although only a fraction of the sound waves are reflected back to the transducer, the billions of erythrocytes in the blood will collectively generate enough…

ArticleReferensvärden
Echocardiography

…indexed Aortic annulus 20 31 mm 12 14 mm/m2 Sinuses of Valsalva 29 45 mm 15 20 mm/m2 Sinotubular junction 22 36 mm…

ArticleEchocardiography
Left Ventricular Function

…The most widely adopted parameter is the ejection fraction (EF). The concept of ejection fraction was introduced by Braunwald and colleagues in 1962 ( Braunwald et…

ArticleCardiology
Heart failure: Introduction

…fraction (LVEF). The majority of all clinical trials, epidemiological studies and mechanistic studies have been carried out in HFREF (heart failure with reduced ejection fraction…

ArticleCardiology
Cardiovascular Risk in Women: Sex-Specific Factors

…approximately 65 years of age. Hypertension related left ventricular hypertrophy, concentric remodelling, reduced longitudinal strain and heart failure with preserved ejection fraction are more frequent…

ArticleEchocardiography
Assessing left ventricular systolic function

…however, that three dimensional (3D) echocardiography offers greater precision in the calculation of ejection fraction, and 3D measurements will presumably replace 2D measurements in the…

ArticleCardiology
Alcohol and Cardiovascular Disease

…95% of ingested ethanol undergoes hepatic metabolism. Alcohol dehydrogenase converts ethanol to acetaldehyde, which is subsequently converted by aldehyde dehydrogenase to acetate. The remaining fraction…

ArticleKunskapsbas
🟠 Mitral valve

…ml/beat) < 30 30 59 59 Regurgitation volume = EROA x TVI Regurgitation fraction (%) < 30 30 49 49 Miscellaneous parameters Mild regurgiation Moderate…

ArticleCardiology
Myocardial Perfusion Imaging With SPECT and PET

…myocardial scar. Estimate the risk of major adverse cardiovascular events. Assess left ventricular volumes, regional wall motion, and ejection fraction using ECG gated acquisitions. Quantify…

ArticleEchocardiography
Tachycardia induced cardiomyopathy

…contractions (PAC) PACEMAKER RELATED Pacing with rapid ventricular response rate The incidence of tachycardia induced cardiomyopathy is 8–10% among patients with atrial tachycardia (Medi…

ArticleReferensvärden
Circulatory and haemodynamic parameters

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

ArticleKunskapsbas
🟠 SYNTAX Score

…SYNTAX Score is a semi quantitative scoring system designed to assess the complexity of coronary artery disease (CAD) and guide the choice between percutaneous coronary…

ArticleContinous medical discussion: the ECG blog
A new ECG biomarker for sudden cardiac death

…had an ejection fraction measured before death, and among those who did, only a minority had a reduced value — the majority of sudden cardiac deaths…

ArticleCardiology
Cardiovascular Prevention in the Very Elderly

…reduction in cardiovascular reserve, and the increasing burden of comorbid disease. Heart failure with preserved ejection fraction becomes particularly common among the very old. Hypertension…

ArticleEchocardiography
Aortic regurgitation

…Is left ventricular ejection fraction (LVEF) normal? A normal sized ventricle with hyperdynamic contractility suggests acute aortic regurgitation. The severity of aortic regurgitation can be…

ArticleCardiology
Cardiac Rehabilitation After Myocardial Infarction

…to participation Occupational and sporting goals Current pharmacological treatment Early assessment of left ventricular ejection fraction is recommended before hospital discharge because the first we