60+ träffar

ArticleEchocardiography
Tricuspid regurgitation (TR/TI)

…ventricle. Dilatation of the right atrium. Pulmonary hypertension. Left to right shunt. Right ventricular dysfunction due to pressure/volume overload is the most common cause…

ArticleEchocardiography
Mitral regurgitation

…prolapse of P2 (Figure 1). Myocardial ischemia affecting the papillary muscles or the connected myocardium may cause mitral prolapse, and thus regurgitation. Ischemia manifests with…

ArticleCardiology
Anticoagulation Strategies in Atrial Fibrillation

…is the most common sustained cardiac arrhythmia and a profound driver of global cardiovascular morbidity and mortality, primarily due to its association with ischemic stroke…

ArticleEchocardiography
Pulmonary regurgitation

…are also estimated using continuous Doppler. A dense regurgitant jet with rapid deceleration (short PHT) is suggestive of severe regurgitation; the leakage usually ends early…

ArticleEchocardiography
Aortic regurgitation

…because cardiac output diminishes in parallel with increasing myocardial load (and hence oxygen demand). The most common causes of acute aortic regurgitation are aortic dissection…

ArticleCardiology
Pulmonary Embolism (PE)

…overlap with risk factors for DVT; immobilisation, surgery, hypercoagulability, and pregnancy are common risk factors (see Risk factors below). A significant proportion of cases with…

ArticleEchocardiography
Tricuspid stenosis

…pressure, which subsequently causes right atrial dilation. Vena cava inferior may also dilate secondarily. Principles of management Medical therapies do not alter disease progression. Diuretics…

ArticleEchocardiography
Mitral valve stenosis

…Figure 1. Anatomy of the mitral valve The leaflets are connected to the papillary muscles via chordae tendineae (Figure 1). The anterolateral papillary muscle receives…

ArticleCardiology
Hypertensive emergency (crisis)

…the contraction of smooth muscle cells. As compared with nitroprusside, nicardipine induces relatively greater venodilation than arteriolar dilation. Effects Nicardipine causes dilation of the coronary…

ArticleKardiologi
Hypertensive crisis: drugs and doses

…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…

ArticleEchocardiography
Left Ventricular Function

…and of ventricular end diastolic and residual volumes. Experimental and clinical observations with a precordial dilution technic. Circulation. Redfield et al: Heart Failure with Preserved…

ArticleProcedurer
Central venous catheter

…choice of site, the use of ultrasound throughout the puncture, and maintaining maximal barrier precautions without shortcuts. The most common serious error is dilating a…

ArticleEchocardiography
Pericardial Effusion & Cardiac tamponade

…volume filling of the chambers. At normal filling volumes, the pericardium is very indulging and thus allows rapid ventricular filling. If the dilatation of the…

ArticleKunskapsbas
🟠 Clevidipine

…and nicardipine in hypertensive emergencies. Time to onset of action 2 4 minutes Duration of action 5 15 minutes Delivery IV (infusion). Dose Initial dose:…

ArticleProcedurer
Wound suturing

…apart. A wound through the full thickness of the dermis, particularly over joints and in cosmetically sensitive areas. Superficial wounds with well apposed edges, abrasions…

ArticleKunskapsbas
🟠 Nitroprusside

…via generation of cyclic GMP, which then activates calcium sensitive potassium channels in the cell membrane. Time to onset of action : 1 minute. Duration of…

ArticleArrhythmias and arrhythmology
Atrial Fibrillation in the Critically Ill Patient

…newly developed during management of an acute illness. The clinical relationship between AF and acute deterioration is often bidirectional. AF with a rapid ventricular response…

ArticleDrugs and electrolyte imbalance
ECG changes due to electrolyte imbalance (disorder)

…of phosphate substitution, use of foscarnet. ECG changes due to hypocalcemia Common ECG changes Lengthened QT interval (torsade de pointes is uncommon) Shortened QRS duration…

ArticleKunskapsbas
🟠 Reference values for adult ECG

…Causes of tachycardia (tachyarrhythmia) with wide QRS complexes (QRS duration ≥0,12 s) : ventricular tachycardia is the most common cause and it is potentially life…

ArticleCardiology
Levosimendan (Simdax, Simendan) in acute heart failure

…less common. Levosimendan may be administered simultaneously with milrinone. The drugs can also be given sequentially. Hypotension can be counteracted with simultaneous administration of norepinephrine…

ArticleCPR
Cardiac arrest due to electrolyte imbalance

…Hyponatremia of unknown duration : These cases are managed as chronic hyponatremia. Degree of hyponatremia P/S Na + Common effects Mild 130 125 mmol/l Cognitive…

ArticleKunskapsbas
🟠 Adjusted aortic root dimension

…help determine expected normal values based on body surface area (BSA), aiding in the diagnosis of aortic root dilation. Key Formulas BSA Calculation (Mosteller formula): [ …

ArticleEchocardiography
Tachycardia induced cardiomyopathy

…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…

ArticleKunskapsbas
🟠 Nicardipine

…the contraction of smooth muscle cells. As compared with nitroprusside, nicardipine induces relatively greater venodilation than arteriolar dilation. Effects Nicardipine causes dilation of the coronary…

ArticleCardiology
Alcohol and Cardiovascular Disease

…hypertension and atherosclerotic coronary disease In patients with heavy alcohol use, left ventricular dilation may precede the development of increased left ventricular hypertrophy and mass…

ArticleInfo
🟠 Vernakalant (Brinavess)

…a precaution. Dosage of vernakalant Vernakalant is dosed by body weight, with the maximum dose based upon 113 kg. Normal dilution: 4 mg/ml. Recommended…

ArticleProcedurer
Drugs in the emergency setting

…repeated to a maximum of 3 mg 0.02 mg/kg, minimum 0.1 mg, maximum 0.5 mg For bradycardia with compromise Isoprenaline 0…

ArticleProcedurer
Opioid therapy in severe pain

…10 mL with sodium chloride) before intravenous titration. Half of all opioid dosing errors arise at the dilution step, and an undiluted syringe of 10…