…episodes Iatrogenic events (e.g., during central venous catheter insertion) Underlying lung pathologies In cases of benign pneumothorax, positive pressure ventilation can precipitate a tension…

…dangerous and benign causes. Ask primarily how the symptoms began, whether they are continuous or episodic, how long an attack lasts, and whether anything actually…

…intima, and thrombus formation. Atherosclerosis is therefore not simply a disorder of lipid storage. Its biology includes: accumulation and modification of lipids within the intima…

…they may be categorized according to whether they are: Not associated with ischaemia Associated with episodic ischaemia Associated with obligatory ischaemia Anomalies may involve the…

…persistent or episodic and may not follow a classical pattern of stable exertional angina. Vasospastic angina should be suspected when patients have repetitive episodes of…

…persistent, long standing persistent and permanent—and is not determined solely by the apparent frequency or duration of documented episodes. The central therapeutic objective is…

…AKI, is a syndrome of rapidly deteriorating renal function. Management is governed not by the creatinine value alone but by the course, urine output, volume…

…de pointes . ECG showing an episode of sinus rhythm (with multiple ventricular premature beats) spontaneously converting to Torsade de Pointes ventricular tachycardia. Notice how arterial…

…repolarisation, thereby facilitating reentry. Episodes of TdP are frequently pause dependent, initiated by either a slowing of the heart rate or a PVC induced pause…

…therefore heterogeneous. Irreversibly scarred regions may alternate with viable segments that are dysfunctional because of repeated ischemic episodes or chronic reductions in perfusion. The amount…

…2 days each week. Activities need not be undertaken in bouts of at least 10 minutes; shorter episodes also contribute to health. Spreading activity across…

…pathophysiology is rooted in autonomic dysregulation within a structurally normal heart. During an episode, decreased cardiac output and a potential paradoxical vasodilation with hypotension occur…

…will alleviate the ischemia, improve myocardial function and increase resistance to episodes of more severe myocardial ischemia. Collateral circulation may be very effective in reducing…

…is blocked in the AV node. Generally not. AV block II, type 2 Some atrial impulses (P waves) are blocked, but PR interval is constant…

Echocardiography Cardiomyopathy caused by tachycardia A prolonged tachycardia can cause cardiomyopathy with left ventricular dilation. This type of cardiomyopathy, referred to as tachycardia induced cardiomyopathy …

…Thus, ischemic episodes may pass asymptomatically. Importance of heart rate during myocardial perfusion imaging It is generally accepted that achieving 85% of the age adjusted…

…Treatment of the alcohol use disorder and planned follow up , not merely detoxification. Benzodiazepines reduce the severity of withdrawal and the risk of seizures and…

…block, Mobitz I (Wenckebach): repeated episodes with progressive lengthening of the PR interval until an atrial beat is blocked (the QRS complex fails to appear)…

…inhibitors, erythropoietin, tyrosine kinase inhibitors and drugs directed against vascular endothelial growth factor. Episodes of headache, palpitations, sweating and pallor that may suggest phaeochromocytoma. Systemic…

…Dofetilide, Ibutilide, Sotalol Class IV Non dihydropyridine L type Ca 2+ channel blockers Diltiazem, Verapamil Singh–Vaughan Williams classification of antiarrhythmic drugs. Bold text indicates…

…relatives suggests a genetic predisposition to arrhythmias. Non Sustained Ventricular Tachycardia (NSVT) : Episodes of VT are a strong predictor of SCD. Unexplained Syncope : Syncope without…

…members. Imaging studies did not reveal structural cardiac abnormalities, nor coronary artery disease. Another male patient, with similar ST segment changes, experienced syncopal episodes, ventricular…

…injury is separate from MI. It refers to cardiac troponin release that does not fulfil the criteria for ischaemic myocardial infarction. It may be acute…

…elevated cardiac troponin concentration and new ST segment depression in new onset AF should not automatically be labelled type 2 myocardial infarction without further assessment…

…fatigue and oedema. This definition does not depend on left ventricular ejection fraction (LVEF). Heart failure with reduced ejection fraction (HFrEF) is defined by the…

…approximately 1–2% without reperfusion to about 0.2% in the reperfusion era. Clinical presentation and symptoms A new episode of hypotension, recurrent chest pain…

…simultaneous ST segment deviation, indicate acute (ongoing) myocardial ischemia. T wave inversions without simultaneous ST segment deviation are not ischemic! However, T wave inversions that…

…The underlying pathological mechanism is not restricted to a single lesion or process. Although Type 1 MI and acute coronary syndromes are commonly related to…

…during spontaneous episodes represent a higher risk subgroup. Evaluation and physical examination The cardiac examination is usually normal when the patient is not experiencing ischaemia…

…Dofetilide, Ibutilide, Sotalol Class IV Non dihydropyridine L type Ca 2+ channel blockers Diltiazem, Verapamil Singh–Vaughan Williams classification of antiarrhythmic drugs. Bold text indicates…

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

…are based on conventional 12 lead ECG. Established ECG criteria do not apply to mathematicallyderived 12 lead ECGs (e.g EASI, Frank's leads etc)…

…cases with intermittent symptoms, it is important to establish a temporal correlation between symptoms and episodes of bradyarrhythmia on ECG recordings. Normal heart rate and…

…abnormalities. Assessment of wall motion abnormalities is particularly important in the setting of chronic or acute coronary artery disease. All types of ischemia– chronic, acute…

…that type of normalization is much slower and it is explained by the gradual death (and thus the disappearance of membrane potential) in the ischemic…