Abstract
Congenital central hypoventilation syndrome (CCHS) patients are at risk for life-threatening cardiac arrhythmias, and presentation is dependent on their PHOX2B gene mutation. We describe the presentation of life-threatening arrhythmias in our cohort of CCHS patients. We reviewed the records of 72 CCHS patients seen at CHLA from 2004 to 2018. Data collected included demographics, PHOX2B genotype, ventilatory support, clinical symptoms, ambulatory cardiac monitoring results, and presence of cardiac pacemaker. Sixteen of 72 patients had evidence of potential life-threatening cardiac arrhythmias. PHOX2B genotypes were 20/25 polyalanine repeat expansion mutation (PARM), 20/26 PARM, 20/27 PARM, 20/32 PARM, and c.245C > T non-polyalanine repeat mutation. 11/16 patients were ventilated during sleep only. Symptoms included syncope, dizziness, chest pain, tingling in the left arm, and palpitations. 15/16 patients had recorded ambulatory cardiac monitoring. 5/16 patients were symptomatic without significant sinus pauses. 12/16 patients had implantation of cardiac pacemakers. 9/12 had significant sinus pauses on ambulatory monitoring, and 7/12 patients were symptomatic.
Conclusion: CCHS patients have potential life-threatening arrhythmias requiring cardiac pacemaker implantation. Many of these patients are symptomatic with significant sinus pauses on ambulatory monitoring. However, some symptomatic patients with no significant pauses on ambulatory monitoring may still require cardiac pacemaker implantation.
What is Known: • CCHS patients are at risk for life-threatening sinus pauses and require cardiac pacemaker implantation. | |
What is New: • CCHS patients regardless of PHOX2B genotype are at risk for significant sinus pauses. Many CCHS patients with significant sinus pause on ambulatory cardiac monitoring are symptomatic and most present with syncope. Some symptomatic patients do not have significant sinus pauses but may still require cardiac pacemaker implantation. |
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11 February 2020
The publisher regrets that in the original published version of this article, one of the author���s name was incorrectly presented as ���Yaniv Bar Cohen���. The correct presentation should have been ���Yaniv Bar-Cohen��� and is now presented correctly in this article.
Abbreviations
- CCHS:
-
Congenital central hypoventilation syndrome
- DP:
-
Diaphragm pacing
- NIPPV:
-
Noninvasive positive pressure ventilation
- NPARM:
-
Non-polyalanine repeat mutation
- PARM:
-
Polyalanine repeat expansion mutation
- PPV:
-
Positive pressure ventilation
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The original version of this article was revised: One of the author’s name was incorrectly presented as “Yaniv Bar Cohen”. The correct presentation should have been “Yaniv Bar-Cohen” and is now presented correctly in this article.
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Laifman, E., Keens, T.G., Bar-Cohen, Y. et al. Life-threatening cardiac arrhythmias in congenital central hypoventilation syndrome. Eur J Pediatr 179, 821–825 (2020). https://doi.org/10.1007/s00431-019-03568-5
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DOI: https://doi.org/10.1007/s00431-019-03568-5