…supplemented with a central venous sample Common approximate arterial reference ranges in adults are: pH 7.35 to 7.45 pCO₂ 4.7 to 6…

…activity–in a young adult with T wave inversions in V1–V4, or other ECG changes (see below) should lead to a suspicion of ARVC…

…can be highly variable, particularly in females, the elderly, or patients with diabetes [4]. Associated Findings: The sudden onset of symptoms coupled with diaphoresis should…

…disease or after treatment. During exertion, however, the limited diastolic reserve becomes evident, with a rise in left atrial and pulmonary pressures that contributes to…

…less common than inherited mutations. Clearly, not all DCM genes have been discovered. Genetic testing for DCM Genetic testing of patients with confirmed or likely…

…Architecture Genetic Architecture: From Monogenic to Polygenic Models Brugada syndrome was classically defined as a monogenic, autosomal dominant channelopathy with incomplete penetrance and variable expressivity…

…The HCM Risk SCD score aims to identify individuals with a high risk of SCD and determine whether an implantable cardioverter defibrillator (ICD) is warranted…

…inability to adequately increase heart rate Chronotropic incompetence is an independent predictor of overall and cardiovascular mortality. The condition is very common among individuals with…

…1.73 m², excess urinary albumin excretion—typically a spot urinary albumin to creatinine ratio (UACR) above 30 mg/g—or both. The eGFR is…

…it may present with chronic angina, an anginal equivalent or exertional dyspnoea. Patients may continue to have lifestyle limiting symptoms despite guideline directed medical therapy…

…changes New pathological Q waves Imaging evidence of new loss of viable myocardium or a new regional wall motion abnormality in an ischemic distribution Angiographic…

…with tamoxifen or lithium, thiazide administration, and over supplementation of calcium and vitamin D. ECG in hypercalcemia Typical ECG changes: Shortened QT interval. Attenuated T…

…particularly in relation to VSR. Large infarction, especially for septal or free wall rupture. Free wall rupture is more common after fibrinolytic therapy than after…

…to hemodynamic collapse in patients with right ventricular ischemia or infarction. Recognizing ECG signs of right ventricular involvement is, therefore, important. Such knowledge is valuable…

…kind of damage, change or degeneration. Endocarditis with alpha streptococcus is most often subacute and can develop gradually over several days to weeks. More acute…

…ischemia or partial scarring. Severe defects : Defined by absent tracer uptake, with signal intensity comparable to background activity, typically representing infarcted tissue or non viable…

…related to T4 — a small change in T4 produces a large change in TSH. During acute illness the TSH can be falsely low or high…

…g × 4 IV Exacerbation of COPD with an indication for antibiotics amoxicillin 750 mg × 3 PO 5–7 days or doxycycline 200 mg × 1 on…

…dense structures ( i.e structures with high echogenicity). For each reflection, a portion of the sound waves return to the transducer and produce a copy…

…to treat atrial fibrillation, ventricular tachycardia, and other tachyarrhythmias with discernible QRS complexes. Shockable rhythm : Tachyarrhythmias that can be treated with defibrillation (ventricular fibrillation) or…

…with connective tissue disorders (Marfan syndrome, Ehlers Danlos syndrome), osteogenesis imperfecta typically causes prolapse of P2 (Figure 1). Myocardial ischemia affecting the papillary muscles or…

…the most common form of neurally mediated syncope (NMS), a disorder of autonomic reflexes. It typically occurs after attaining an upright posture or following painful…

…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…

…be difficult to discern because the flutter wave may fuse with the preceding T wave. Increasing the paper speed to 50 mm/s or applying…

…ischemia and infarction Approach to patients with chest pain: differential diagnoses, evaluation and management Chest pain is one of the most common symptoms in the…

…syndrome) being the most common. Atrial fibrillation with onset during hyperthyroidism (thyrotoxicosis), alcohol overdose, thoracic surgery, acute myocardial infarction, pericarditis/myocarditis or pulmonary embolism is…

…mechanisms, ECG & management Atrioventricular nodal reentrant tachycardia (AVNRT) is a common tachyarrhythmia observed across all age groups, from children to the elderly, and frequently occurs…

…rather common. The ECG has low sensitivity with respect to detecting biventricular hypertrophy. This is because the strong and oppositely directed forces tend to cancel…

…commonly due to dysfunctional automaticity in pacemaker cells or blocking of impulses somewhere along the conduction system. Supraventricular tachyarrhythmias (tachycardia): rapid arrhythmias due to impulses…

…and tamponade. Less common are cysts and tumors of the pericardium, as well as congenital malformations leading to an incomplete or absent pericardium. In case…

…exceeds 100 beats per minute. Although sinus tachycardia is the most common tachyarrhythmia, it may not always be straightforward to diagnose on the ECG. Moreover…

…an awake patient, harder to keep the dressing clean with a tracheostomy or copious secretions Subclavian vein Most comfortable for the patient, the most stable…

…the principles that are common to all protocols. Children, pregnant women and patients with advanced renal failure, marked heart failure or circulatory shock require a…

…rapidly with intravenous drugs. Such treatment has not been shown to improve the prognosis and can cause hypotension, acute kidney injury, myocardial ischaemia or cerebral…

…circulatory compromise or collapse. Causes of tachycardia (tachyarrhythmia) with wide QRS complexes (QRS duration ≥0,12 s) : ventricular tachycardia is the most common cause and…

…ischaemic electrocardiographic changes during rapid AF. ST segment depression or T wave inversion can occur without coronary artery disease. Proposed explanations in the source material…

…patients with resistant or severe hypertension and associated clinical features. Clinical presentation and symptoms The usual clinical manifestation is hypertension, often severe or resistant to…

…presentation may range from mild right ventricular impairment to cardiogenic shock. Patients with hypotension, marked low output, or persistent severe symptoms require close monitoring and…

…commonly stated that approximately 80% of all cardiac arrests are caused by acute or chronic coronary artery disease, with the latter being the most common…

…The ECG can show low voltage and nonspecific ST T changes. Conventional thoracic X ray sometimes reveals calcification of the pericardium. With MRI or CT…

…Nevertheless, cardiac troponin (T or I) has almost 100% specificity for myocardial cells and is the preferred biomarker according to North American (ACC, AHA) and…

…changes due to hypercalcemia Common ECG changes Shortened QT interval. Lengthened QRS duration. Bradycardia may occur. Rare ECG changes Increased QRS amplitude. Diminished T wave…

…for exercise stress test Indications have been discussed in Introduction to Exercise ECG. The most common indications are as follows: Assessment of cardiovascular risk in…

…the atherosclerotic artery. Whenever oxygen demand exceeds oxygen (blood) delivery ischemia occurs and this manifests with chest discomfort referred to as angina pectoris. If the…

…of the bundle of His. If there are cells (with automaticity) distal to the block, an escape rhythm may arise in those cells. For example…

…referred to the catheterization laboratory with suspicion of STEMI (STE ACS) have left bundle branch block. Masking of ischemia occurs because the ST T changes…

…artery into the right ventricle during diastole. The most common cause of abnormal pulmonary regurgitation is pulmonary hypertension. Table 1 presents the causes of pulmonary…

…with ischemic heart disease (or myocardial infarction) who present with right bundle branch block typically also have a fascicular block. This condition is referred to…

…Valve replacement can be performed with biological or mechanical prostheses. The former is preferred due to the lower risk of thrombosis and evidence demonstrating long…

…and circulation. 2. Give controlled oxygen with a target of 88 to 92 percent until the risk of hypercapnia has been assessed. 3. Take an…

…Syndrome Typical course Common or important causes Targeted examination : : : : Acute vestibular syndrome Acute or subacute onset, continuous dizziness lasting hours to days, often with nausea…

…autonomic hyperactivity Up to 5 to 7 days, sometimes longer Persisting withdrawal, particularly after previous severe episodes, with concurrent physical illness or after prolonged very…

…mmHg suggests vascular disease, and the arm with the higher reading is used thereafter Two to three measurements one minute apart, taking the mean of…

…hypoactivity and hyperactivity Common on repeated assessment over the day It is wrong to assume that hyperactive delirium is always detected, or that hypoactive delirium…

…required, in addition to the mealtime dose Never stop basal insulin in a person with type 1 diabetes , not even before fasting or an investigation…

…choice among the common opioids in renal failure Ketobemidone IV 2.5–5 mg Oral bioavailability about 35 per cent Paracetamol PO or IV 1…

…failure. Caution • Used cautiously in patients with acute heart failure. • Clevidipine can cause reflex tachycardia. • Contraindicated in severe aortic stenosis due to risk of hypotension…

Info This drug manual is provided for use in patients with hypertensive emergency (also referred to as hypertensive crisis or malignant hypertension ). Hypertensive emergency is…

…cautiously in patients with high intracranial pressure or azotemia. • Should not be given to pregnant women. • Should not be given to patients with Leber optic…

…common following the successful ablation of typical flutter. Furthermore, typical flutter frequently emerges in patients undergoing pharmacological treatment for AF with class IC drugs or…