Overview
Submucous cleft palate (SMCP) is a congenital anomaly characterized by a smooth palate with underlying muscular or bony clefts, often leading to velopharyngeal insufficiency and speech disorders such as hypernasality and nasal emission 13.Diagnosis
Key Symptoms: Hypernasal speech, conductive hearing loss, and bifid uvula 3.
Diagnostic Tests: Velopharyngeal function evaluation, videonasopharyngoscopy, and multiview videofluoroscopy 145.
Typical Findings: Lack of posterior nasal spine, bifid uvula 3.Management
First-Line Treatments:
- Speech Therapy: Effective for improving velopharyngeal function, especially in patients without complications 1.
- Surgical Interventions: Indicated for persistent velopharyngeal insufficiency; techniques include minimal incision palatopharyngoplasty, individualized pharyngeal flap, and Furlow palatoplasty 45.
Adjunctive Treatments:
- Combined Approaches: Double-opposing Z-plasty (DOZ) combined with speech therapy shows comparable improvements to speech therapy alone 2.
- Additional Procedures: Speech therapy post-surgery for residual issues 3.Special Populations
Pediatrics: Early intervention with speech therapy can significantly improve outcomes 12.
Comorbidities: Patients with complications may require additional surgical interventions or prolonged speech therapy 13.Key Recommendations
Early Speech Therapy: Initiate speech therapy early for patients with SMCP to improve velopharyngeal function, particularly in those without complications (Evidence: Moderate 1).
Surgical Indication: Consider surgical intervention, such as Furlow palatoplasty or individualized pharyngeal flap, for patients with persistent velopharyngeal insufficiency despite speech therapy (Evidence: Moderate 45).
Comprehensive Evaluation: Ensure thorough evaluation including videonasopharyngoscopy and multiview videofluoroscopy before deciding on surgical versus non-surgical management (Evidence: Moderate 45).
Late Diagnosis Awareness: Promote early diagnosis and specialist referral for patients presenting with hypernasal speech and bifid uvula to prevent delayed treatment (Evidence: Expert opinion 3).References
1 Natsume N, Imura H, Akashi J, Hayakawa T, Inoue C, Mori T et al.. Improvement of speech function in submucous cleft palate through conservative treatment. Congenital anomalies 2025. link
2 Jeon S, Park JS, Han M, Oh AK, Kim BJ, Chung JH et al.. Comparison of Speech Outcomes Between Speech Therapy Only and Double-Opposing Z-Plasty Combined With Speech Therapy in Patients With Submucous Cleft Palate. The Journal of craniofacial surgery 2025. link
3 Reiter R, Brosch S, Wefel H, Schlömer G, Haase S. The submucous cleft palate: diagnosis and therapy. International journal of pediatric otorhinolaryngology 2011. link
4 Ysunza A, Pamplona MC, Mendoza M, Molina F, Martinez P, García-Velasco M et al.. Surgical treatment of submucous cleft palate: a comparative trial of two modalities for palatal closure. Plastic and reconstructive surgery 2001. link
5 Chen PK, Wu J, Hung KF, Chen YR, Noordhoff MS. Surgical correction of submucous cleft palate with Furlow palatoplasty. Plastic and reconstructive surgery 1996. link