tailieunhanh - Ebook The arrhythmic patient in the emergency department - A practical guide for cardiologists and emergency physicians: Part 2

(BQ) Part 2 book "The arrhythmic patient in the emergency department - A practical guide for cardiologists and emergency physicians" presents the following contents: Wide QRS complex tachycardia in the emergency setting, acute management of arrhythmias in patients with known congenital heart disease, acute management of arrhythmias in patients with known congenital heart disease, acute management of arrhythmias in patients with channelopathies,. | Wide QRS Complex Tachycardia in the Emergency Setting 6 Giuseppe Oreto Francesco Luzza Gaetano Satullo Antonino Donato Vincenzo Carbone and Maria Pia Calabrò Wide QRS Complex Tachycardia A wide QRS complex tachycardia can be 1 ventricular tachycardia VT 2 supraventricular tachycardia SVT with bundle branch block that may be either preexisting or due to aberrant conduction namely tachycardia-dependent abnormal intraventricular conduction a further possibility is the effect of some antiarrhythmic drugs that slow down intraventricular conduction resulting in marked QRS complex widening and 3 supraventricular tachycardia with conduction of impulses to the ventricles over an accessory pathway preexcited tachycardia . In the presence of wide QRS tachycardia the correct diagnosis is of paramount importance since the treatment commonly used in SVT is different from that of VT and some drugs useful in the former . verapamil are harmful in the latter 1-3 . The origin of a wide QRS complex tachycardia can be reliably identified using a holistic approach namely taking into account all of the available items no single criterion is able to provide a simple and quick solution of the problem in all cases. The available ECG signs are without any exception suggestive of ectopy namely ventricular origin of the impulses SVT with aberrant conduction may only be diagnosed by excluding all of the items favoring VT. The recognition of ventricular or supraventricular origin of wide QRS complex tachycardias is not difficult if a G. Oreto F. Luzza V. Carbone Department of Clinical and Experimental Medicine University of Messina Messina Italy e-mail goreto@ G. Satullo A. Donato Department of Cardiology Papardo Hospital Messina Italy Calabrò Department of Pediatrics University of Messina Messina Italy Springer International Publishing Switzerland 2016 89 M. Zecchin G. Sinagra eds. The Arrhythmic Patient in the Emergency Department A Practical Guide for Cardiologists and .

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