Analysis of 73 patients with heterotaxy—abnormal organ positioning often causing complex heart defects—revealed that 43 patients without primary ciliary dyskinesia (PCD) still harbored significant respiratory ciliary abnormalities. Transmission electron microscopy detected extra microtubules or disorganized structures in 24.4% of these non-PCD patients, with preserved beating function but altered ultrastructure. The finding extends beyond a small cohort: among 2,823 patients referred for respiratory evaluation, those with congenital heart disease showed significantly higher rates of ciliary structural anomalies even without PCD diagnosis. This discovery illuminates a previously hidden connection between subtle ciliary dysfunction and organ development disorders. The implications reach beyond rare disease classification—cilia are cellular antennae critical for developmental signaling and organ positioning during embryogenesis. These microscopic hair-like structures also clear respiratory secretions and detect fluid flow. While this preprint awaits peer review and results may change, the findings suggest current genetic testing may miss ciliary-related developmental disorders. For families with unexplained heart defects or organ malposition, this research points toward expanded ciliary evaluation as a diagnostic tool, potentially revealing treatable respiratory components of complex developmental syndromes.