…report. A shave biopsy of a pigmented lesion that turns out to be a melanoma can make the Breslow thickness unmeasurable and staging therefore impossible…

…nodal block lasting up to a few seconds. His Purkinje conduction is generally unaffected directly. Adenosine does not typically affect conduction in normal accessory pathways…

…atria (hence "supraventricular") and they tend to be paroxysmal. However, the term PSVT does not have any clinical relevance and it may lead to misunderstanding…

…that the atrioventricular node does, and this means that any impulse reaching the accessory pathways may travel directly to the ventricles without any delay. Hence…

…A patient who has become calm, quiet in the chest and stopped struggling may be about to stop breathing. Diminishing wheeze means improvement only if…

…conducted via an accessory pathway [see Wolff Parkinson White Syndrome]); blocking AV node conduction may result in accelerated transmission of atrial impulses to the ventricles…

…provoke or aggravate any ventricular arrhythmia, such as ventricular tachycardia, ventricular fibrillation, torsade de pointes etc). Hypokalemia is likely to predispose to the pro arrhythmic…

…of an accessory pathway). This is associated with a delta wave. For further details on the PR interval and the PR segment, refer to The…

…work of breathing Use of accessory respiratory muscles or paradoxical abdominal breathing Impending muscle fatigue Respiratory rate above 25 to 30 per minute Increased risk…

…dyspnoea improves and sympathetic activation subsides, making it difficult to determine whether AF initiated the deterioration or resulted from it. AF has important consequences beyond…