(1)
Pediatric Cardiology, Policlinico S.Orsola-Malpighi, Bologna, Italy
Fig. 9.1
(a) Neonate referred for bradycardia . (b) The cause of the bradycardia was ectopic atrial beats (asterisks). These beats are anticipated and then blocked. (c) Sometimes they are conducted, with narrow and (d) wide complex with LBBB aberrancy
Fig. 9.2
Fourteen-year-old female with anorexia . Due to the shortage of food, the body a sort of lethargy, witnessed also by the low amplitude of the QRS
Fig. 9.3
Eight-year-old male with acute rheumatic fever complicated by mitral regurgitation and first-degree AV block
Fig. 9.4
(a) Two-year-old girl. Idiopathic second-degree AV block Mobitz 1 (Luciani-Wenckebach) . (b) Close-up
Fig. 9.5
(a) As in the previous case, a second-degree AV block Mobitz 1 (Luciani-Wenckebach) can be noted in a 4-year-old male. (b) Close-up
Fig. 9.6
(a) Fourteen-year-old boy; see the previous case. (b) Close-up (asterisk indicates the nonconducted P waves)
Fig. 9.7
(a) Twenty-year-old female, postresection of muscular subaortic stenosis (Morrow operation). She developed a second-degree AV block Mobitz 2. (b) Close-up. During isoprenaline induced sinus tachycardia
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