What question did this study set out to answer?

To analyze how PHOX2B variant severity affects patient-reported symptoms in CCHS.

April 17, 2026Open Access

International Congenital Central Hypoventilation Syndrome (CCHS) Registry: Analysis of Patient‐Reported Symptoms by PHOX2B Variant

Key Points

To analyze how PHOX2B variant severity affects patient-reported symptoms in CCHS.
Conducted a registry analysis of patient-reported symptoms associated with CCHS
Examined variations in symptom severity by different PHOX2B variants
Focused on both cardiorespiratory dysfunction and other ANS-related symptoms
Patient-reported symptoms vary significantly based on the severity of PHOX2B variants
Findings indicate the importance of assessing additional ANS-related systems beyond respiratory issues
Results suggest implications for improving clinical management and therapeutic trials

Abstract

The individual-reported impact of CCHS varies by both PHOX2B variant severity and the ANS organ system/symptom manifestations. Beyond the traditional clinical focus on cardiorespiratory dysfunction, these results highlight other ANS-related systems that are critical for comprehensive clinical management and future therapeutic trial design.

International Congenital Central Hypoventilation Syndrome (CCHS) Registry: Analysis of Patient‐Reported Symptoms by PHOX2B Variant

Key Points

Abstract

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