Test on Cleft Palate: Embryology, Surgery, and Care

Question 1: The primary surgical intervention for airway management in infants with Pierre Robin sequence who fail conservative measures is immediately performing a tracheostomy.

A. Ano

B. Ne

Explanation: The study materials state that if conservative measures fail, surgical management may be required. However, a tongue-lip adhesion has been used as an effective alternative to tracheostomy, and mandibular distraction osteogenesis has also been used with success in averting tracheostomy. Bronchoscopy is performed to rule out other issues, but tracheostomy is not presented as the primary surgical intervention, especially when alternatives exist to avert it.

Question 2: According to the study materials, which of the following accurately describes the palatal cleft often seen in children with Pierre Robin sequence?

A. It is typically isolated to the velum and can be V-shaped or U-shaped.

B. It is most commonly a complete cleft involving both the hard and soft palate.

C. Approximately 60-90% of children with Pierre Robin sequence have a cleft palate.

D. The palatal cleft is usually isolated to the hard palate and is linear.

Explanation: The study materials state that 'Of the children diagnosed with Pierre Robin sequence, 60–90% have cleft palate' and that 'the palatal cleft is usually isolated to the velum and can be V shaped or, more typically, U-shaped.' Therefore, options 0 and 2 are correct descriptions.

Question 3: The study materials indicate that children with orofacial clefting consistently maintain normal growth patterns, with no statistically significant differences in height and weight compared to unaffected children beyond infancy.

A. Ano

B. Ne

Explanation: While children with orofacial clefting stabilize and continue normal growth to at least 6 years of age with no statistically significant differences in height and weight compared to unaffected children, the study materials state that 'In later childhood, however, average weight and height of children with cleft appear to diminish compared with those of control subjects.' Additionally, 'onset of puberty was found to be delayed on average by 6 months, and the velocity of skeletal growth during puberty was blunted.'

Question 4: According to a Danish study on male cleft patients, which of the following statements accurately describes the impact of orofacial clefting on skeletal growth and puberty?

A. The onset of puberty is delayed by an average of 6 months, and the velocity of skeletal growth during puberty is blunted.

B. The duration of puberty and pubertal skeletal growth are prolonged by an average of 1 year.

C. Final attained body height and radius length are the same as those of control subjects.

D. Onset of puberty is accelerated, leading to an overall increase in final body height compared to control subjects.

Explanation: The study states that the onset of puberty was delayed on average by 6 months and the velocity of skeletal growth during puberty was blunted. It also notes that the duration of puberty and pubertal skeletal growth were prolonged by an average of 1 year. Despite these changes, the final attained body height and radius length were the same as those of control subjects. Therefore, the fourth option is incorrect as puberty is delayed, not accelerated, and final height is the same, not increased.

Question 5: Children with cleft palates inherently experience difficulty with swallowing and aspiration due to compromised neuromuscular control.

A. Ano

B. Ne

Explanation: The study materials state that 'Children with clefts generally do not have difficulty with swallowing and aspiration unless intrinsic neuromuscular abnormality of the tongue or pharynx is present.' This indicates that the cleft palate itself does not inherently cause neuromuscular swallowing difficulties; an additional intrinsic neuromuscular abnormality would be required.