Disordered respiratory control in children with partial cerebellar resections.
While the cerebellum is not traditionally thought of as having an important role in respiratory control, breathing involves cyclic motor acts that require cerebellar coordination. We postulate that children with partial cerebellar resections have disordered respiratory control due to altered synchronization of ventilatory muscles. We reviewed the records of 36 children following partial cerebellar resections due to neoplasms confined to the cerebellum. P aCO2 values were elevated in 19% of patients. Six patients had apneic or bradypneic events documented within the first month after resection. Two patients required intubation with assisted ventilation, and one needed assisted ventilation for 7.3 weeks. Those with apnea had lower oxygen saturations, and a longer need for supplemental oxygen. Patients with apnea were older than those without apnea. Swallowing, which uses many of the same muscles as those needed to maintain upper airway patency, was dysfunctional in 50% of those with apneas. We conclude that children with cerebellar resections have an increased incidence of apnea, hypoventilation, and hypoxemia not otherwise explained by pulmonary disease, and some require prolonged assisted ventilation. We speculate that these abnormalities are manifestations of altered respiratory control caused by dysfunctional cerebellar coordination of ventilatory muscles.
Chen
Maida Lynn
ML
Division of Pediatric Pulmonology, Children's Hospital Los Angeles, Los Angeles, California 90027, USA.
Witmans
Manisha B
MB
Tablizo
Mary Anne
MA
Jubran
Rima F
RF
Turkel
Susan B
SB
Tavaré
C Jane
CJ
Keens
Thomas G
TG
D001049:Apnea / Q000209:etiology; D002531:Cerebellum / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D003680:Deglutition Disorders / Q000209:etiology; D005260:Female; D006801:Humans; D015192:Infratentorial Neoplasms / Q000601:surgery*; D008297:Male; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D012120:Respiration Disorders / Q000209:etiology*; D012189:Retrospective Studies