60+ träffar

ArticleMyocardial ischemia and infarction
Stent Thrombosis: Timing, Causes, Diagnosis, and Prevention

…therapy Nonadherence or discontinuation of clopidogrel or DAPT, reduced clopidogrel bioavailability, hyporesponsiveness or resistance to aspirin or clopidogrel Anatomic Long lesions, small vessels, multivessel disease…

ArticleCardiology
Secondary Hypertension: When and How to Investigate

…pseudo resistance must be excluded. This includes: Poor adherence to antihypertensive treatment White coat hypertension Other contributors to apparently uncontrolled blood pressure Adherence should initially…

ArticleCardiology
Resistant Hypertension: Evaluation and Treatment

…Other guideline formulations similarly define resistant hypertension as blood pressure above goal despite three or more antihypertensive drugs from different classes at maximally tolerated doses…

ArticleCardiology
Chronic Kidney Disease as a Cardiovascular Risk Factor

…burden of CKD extends beyond CAD to peripheral arterial disease, cerebrovascular disease, valvular heart disease, heart failure, atrial fibrillation, and other arrhythmias or conduction abnormalities…

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

…depends almost entirely on the capacity to identify, prospectively, those individuals genuinely at risk of arrest. This predictive problem has proven persistently resistant to resolution…

ArticleEchocardiography
Tachycardia induced cardiomyopathy

…venous pressure, pulmonary capillary wedge pressure and systemic vascular resistance increases. Harmful neurohormonal pathways are activated, similar to those seen in heart failure. A thorough…

ArticleCardiology
Dietary Patterns and Cardiovascular Outcomes

…unsaturated fatty acids and other bioactive compounds from nuts; and antioxidant and antithrombotic constituents from whole grains. These combined effects may improve inflammation, insulin resistance…

ArticleProcedurer
Bone marrow aspiration and biopsy

…with the stylet in place perpendicular to the bone surface, angled slightly anteriorly and medially. Rotate under steady pressure until the resistance suddenly gives way —…

ArticleKunskapsbas
🟠 Mean arterial pressure (MAP) calculator

…Hemodynamic determinants of MAP Hemodynamically, MAP is influenced by cardiac output (CO) and systemic vascular resistance (SVR), as described by the relationship: MAP = (CO…

ArticleCardiology
Alcohol and Cardiovascular Disease

…drinking in either sex. Other definitions of unhealthy drinking include at least two drinks daily in women or three in men, or at least four…

ArticleCardiology
Primary Aldosteronism: Screening and Management

…increased, relatively autonomous from angiotensin II and plasma potassium, and resistant to suppression by sodium loading. It is the most common form of secondary hypertension…

ArticleReferensvärden
Circulatory and haemodynamic parameters

…resistance and oxygen transport Formulas Mean arterial pressure (MAP) = diastolic + (systolic − diastolic)/3 Cardiac output = stroke volume × heart rate SVR = 80 × (MAP…

ArticleKunskapsbas
🟠 Hydralazine

Hydralazine Hydralazine is not preferred for hypertensive emergencies due to the high risk of reflex sympathetic stimulation. Drug Hydralazine Brand names Apresoline ®, Bidil ®…

ArticleEchocardiography
Aortic stenosis

…As the valve area becomes smaller, the transvalvular resistance increases, making it more difficult to eject blood into the aorta. In the early stages of…

ArticleCardiology
Pulmonary Embolism (PE)

…Pathophysiology of pulmonary embolism (PE). Hemodynamic effects Pulmonary embolism leads to increased resistance in the main pulmonary artery, and thereby increased afterload on the right…

ArticleProcedurer
Arterial line

…are routinely missed. The third thing to know by heart is that an arterial line must never be confused with a venous access. Indications Continuous…

ArticleCardiology
Hypertensive emergency (crisis)

…The desired time to action, contraindications and risk of adverse effects should guide the choice of agent. Calcium channel blockers (CCB) Clevidipine Drug Clevidipine Brand…

ArticleProcedurer
Urinary catheterisation

…but the meatus can be hard to find in older women. Two things separate the safe catheterisation from the harmful one: never forcing against resistance…

ArticleEchocardiography
Left ventricular diastolic function

…overcoming the aortic resistance, which is typically 110 mmHg or more. It is straightforward to understand why systolic function is fundamental to global cardiac function…

ArticleProcedurer
Skin biopsy — punch, shave and excision

…Place the punch perpendicular to the skin and rotate under even pressure until the resistance gives way — the dermis has then been passed and you…

ArticleEchocardiography
Relaxation of the left ventricle

…). Afterload Afterload is the resistance that the left ventricle must overcome to eject blood into the aorta. Afterload affects myocardial muscle fibers during systole and…

ArticleProcedurer
Laryngeal mask and difficult airway

…movement until a clear resistance is felt — the tip of the cuff then lies at the oesophageal inlet. 6. Inflate the cuff to a seal…

ArticleProcedurer
Wound suturing

…A wound that has not been irrigated clean, has not been inspected to its depth, and has not been assessed for tendon and nerve injury…

ArticleKunskapsbas
🟠 Clevidipine

Clevidipine Drug Clevidipine Brand names Cleviprex ® Indications Hypertension and hypertensive emergency. Treatment of postoperative hypertension. Mechanism of action Ultra short acting calcium channel blocker…

ArticleKunskapsbas
🟠 Nicardipine

…total peripheral resistance, decreases systemic blood pressure, and decreases afterload. Nicardipine has antianginal and antihypertensive effects. Time to onset of action 5 to 15 minutes…

ArticleCardiology
Diuretic Strategy and Decongestion in Heart Failure

…myocardial wall stress and subendocardial ischemia. Neurohormonal activation and vascular and renal abnormalities contribute to sodium and water retention. The interaction between cardiac and renal…

ArticleConduction defects
Overview of atrioventricular (AV) blocks

…and third degree AV blocks. Readers already familiar with the basics of AV blocks can proceed directly to the subsequent chapters, which provide detailed discussions…

ArticleProcedurer
Exercise stress test on cycle ergometer

…workload controlled resistance; 12 lead ECG with continuous recording; automated or manual blood pressure measurement. Resuscitation trolley with defibrillator, oxygen, suction and emergency drugs in…

ArticleProcedurer
Nasogastric tube

…postoperatively after major abdominal surgery, according to local practice. Enteral nutrition and drug administration when the patient cannot swallow safely, for example after a stroke…