Anesthesia Key

Fig. 6.1 Diagrams (a, b) show two wide QRS complex tachycardias. In both diagrams, small positive deflections, independent of QRS complexes, are present. In diagram (a) these deflections are rhythmic…

Fig. 5.1 Atrial fibrillation with moderately fast ventricular response (about 100 bpm). RR intervals are irregular and coarse F waves are visible European (ESC 2010) [4] and US (AHA/ACC/HRS 2014)…

Fig. 4.1 ECG in normal sinus rhythm; with usual setting (paper speed 25 mm/s) 1 mm equals with 40 ms interval Each QRS complex is preceded by a P wave…

Fig. 11.1 Top panel (a). DDD pacemaker. Atrial rhythm is paced at 60 bpm. Spontaneous QRS with right bundle branch morphology occurs after 180 ms that inhibits ventricular pacing. This…

I II III IV V Chamber (s) paced Chamber (s) sensed Response to sensing Rate modulation Multisite pacing O → none A → atrium V → ventricle D → dual (A + V) O → none A → atrium V → ventricle D → dual (A + V) O → none T → triggered…

Fig. 3.1 Sinus arrest 3.4 Atrioventricular Block Atrioventricular block occurs when the conduction of the atrial impulse to the ventricles slows down or is blocked (paroxysmal or permanently), even though…

Fig. 10.1 Amateur football player, 17 years old, suspected cocaine intoxication and “chaotic atrial arrhythmia,” i.e., sinus rhythm and polymorphic supraventricular ectopic beats Cocaine can also induce ECG modifications such…

Fig. 8.1 A possible algorithm/pathway for diagnosis and treatment of arrhythmias in patients with channelopathies Table 8.1 Conditions that can cause PVT/VF and potential therapies Clues Test to consider Diagnoses…

Fig. 2.1 Context of transient loss of consciousness. SCD sudden cardiac death, TLOC transient loss of consciousness Table 2.1 Conditions incorrectly diagnosed as syncope Disorders with partial or complete LOC…