Overview
Bilateral complete cleft palate with cleft lip (BCCLP/CL) is a severe form of congenital craniofacial anomaly characterized by the absence of the palate's soft and hard tissues bilaterally and a cleft extending from the lip into the nasal cavity. This condition significantly impacts feeding, speech development, hearing, and psychosocial well-being. Affecting approximately 1 in 10,000 live births globally, BCCLP/CL predominantly affects infants and requires multidisciplinary care from birth through adolescence. Early and comprehensive intervention is crucial for optimizing functional outcomes and quality of life, making accurate diagnosis and timely management essential in day-to-day clinical practice 1.Pathophysiology
The development of BCCLP/CL stems from complex interactions during embryonic development, primarily involving disruptions in the fusion of the maxillary and nasal processes. Specifically, failure in the timely and coordinated migration and fusion of the medial and lateral nasal processes, along with the maxillary prominence, leads to the characteristic clefts. Genetic factors play a significant role, with mutations in genes such as IRF6, MSX1, and PVRL1 implicated in cleft formation. Additionally, environmental factors such as maternal smoking, alcohol consumption, and nutritional deficiencies during pregnancy can exacerbate these genetic predispositions, contributing to the multifactorial etiology of BCCLP/CL 1.Epidemiology
The prevalence of isolated cleft lip with or without cleft palate (including BCCLP/CL) among American live births from 2016 to 2021 was estimated at approximately 4.88 per 10,000 live births, with slight variations noted between sexes. Males tend to be affected slightly more frequently than females. Geographic variations exist, with higher incidences reported in certain populations, potentially influenced by genetic predispositions and environmental exposures. Over the study period, there were no significant trends noted in prevalence, suggesting stability in incidence rates. Risk factors identified include maternal smoking, alcohol consumption during pregnancy, and low socioeconomic status, highlighting the importance of preconception and prenatal care in mitigating these risks 1.Clinical Presentation
Infants with BCCLP/CL typically present with bilateral clefts extending from the lip through the alveolar ridge into the hard and soft palate. Clinical features include difficulties with feeding due to poor suck and swallow coordination, recurrent nasal regurgitation, and potential aspiration risks. Speech development is often delayed due to the anatomical disruptions affecting articulation. Additional concerns include hearing impairments secondary to Eustachian tube dysfunction and middle ear infections, as well as dental anomalies such as missing or malformed teeth. Red-flag features that warrant immediate attention include severe respiratory distress, significant feeding difficulties requiring surgical intervention early, and signs of malnutrition or failure to thrive 1.Diagnosis
Diagnosis of BCCLP/CL is primarily clinical, based on physical examination shortly after birth. Key diagnostic criteria include:
Clinical Examination: Detailed assessment of the oral cavity and palate to confirm bilateral clefts involving both soft and hard palate.
Imaging: Radiographic studies such as X-rays or CT scans may be used to assess the extent of the cleft and associated craniofacial anomalies.
Genetic Testing: Consideration of genetic evaluation in cases with a family history or syndromic features to identify potential genetic mutations.
Differential Diagnosis:
- Submucous Cleft Palate: Characterized by a cleft that is not visible externally but affects the soft palate.
- Bilateral Cleft Lip Only: Absence of palatal clefts but bilateral involvement of the lip.
- Syndromic Clefts: Associated with other systemic anomalies requiring broader genetic and clinical evaluation 1.Management
Initial Management
Nutritional Support: Early intervention by a feeding specialist to establish adequate nutrition, often requiring specialized feeding techniques or nasogastric tube feeding initially.
Speech Therapy: Early referral to speech therapists to address potential speech delays and develop compensatory strategies.
Hearing Assessment: Regular monitoring for hearing impairments and timely intervention with hearing aids or surgical correction if necessary.Surgical Interventions
Primary Palatoplasty: Typically performed between 9-18 months of age to close the palate, aiming to improve feeding, speech, and hearing. Techniques include two-stage or single-stage approaches depending on complexity.
Secondary Surgeries: Addressing residual deformities, dental arch alignment, and nasal reconstruction as the child grows.Multidisciplinary Care
Orthodontic Care: Regular evaluations and interventions to manage dental anomalies and ensure proper occlusion.
Psychosocial Support: Psychological counseling and support groups to address emotional and social challenges faced by affected individuals and their families.
Otolaryngology Monitoring: Ongoing assessment and management of ear health to prevent chronic otitis media and hearing loss.Contraindications:
Severe systemic comorbidities that preclude surgical intervention.
Active infections requiring stabilization before surgery 1.Complications
Feeding Difficulties: Persistent issues requiring prolonged intervention or surgical adjustments.
Speech Disorders: Persistent articulation problems necessitating prolonged speech therapy.
Hearing Loss: Recurrent middle ear infections leading to chronic hearing impairment, often requiring tympanostomy tubes.
Dental Anomalies: Malocclusion and missing teeth requiring orthodontic and possibly surgical interventions.
Psychosocial Issues: Long-term emotional and social challenges, necessitating referral to mental health professionals 1.Prognosis & Follow-up
The prognosis for individuals with BCCLP/CL has improved significantly with advances in surgical techniques and multidisciplinary care. Key prognostic indicators include early intervention, adherence to a comprehensive treatment plan, and access to specialized services. Recommended follow-up intervals typically include:
Initial Postoperative Period: Frequent visits (weekly to monthly) for the first year post-surgery.
Long-term Monitoring: Regular assessments every 6-12 months focusing on speech, hearing, dental development, and overall craniofacial growth.
Adolescent and Adult Care: Transition to adult care teams specializing in craniofacial anomalies to address evolving needs 1.Special Populations
Pediatrics: Early intervention is critical, with a focus on feeding support, speech therapy, and surgical corrections tailored to developmental stages.
Comorbidities: Children with additional genetic syndromes or systemic health issues require tailored multidisciplinary care plans addressing both BCCLP/CL and comorbidities.
Ethnic Risk Groups: Certain ethnic populations may exhibit higher incidence rates, necessitating culturally sensitive care and targeted public health interventions 1.Key Recommendations
Early Multidisciplinary Assessment: Conduct comprehensive evaluations by a team including surgeons, speech therapists, nutritionists, and geneticists within the first few weeks of life (Evidence: Strong 1).
Primary Palatoplasty Timing: Perform primary palatoplasty between 9-18 months of age to optimize functional outcomes (Evidence: Moderate 1).
Regular Hearing Monitoring: Schedule routine audiological assessments every 6-12 months to detect and manage hearing impairments early (Evidence: Moderate 1).
Speech Therapy Initiation: Initiate speech therapy early, ideally concurrent with surgical interventions, to address speech delays (Evidence: Moderate 1).
Nutritional Support: Provide specialized feeding support and consider nasogastric tube feeding if necessary to ensure adequate nutrition (Evidence: Moderate 1).
Genetic Counseling: Offer genetic counseling to families, especially those with a history of clefting, to understand recurrence risks (Evidence: Moderate 1).
Psychosocial Support Services: Integrate psychological support and counseling into the care plan to address emotional and social challenges (Evidence: Expert opinion 1).
Orthodontic Monitoring: Regular orthodontic evaluations starting in early childhood to manage dental anomalies effectively (Evidence: Moderate 1).
Avoidance of Risk Factors: Advise pregnant women to avoid smoking, alcohol consumption, and ensure adequate nutrition to reduce the risk of clefting (Evidence: Strong 1).
Long-term Follow-up: Maintain lifelong follow-up with specialists to address evolving needs related to speech, hearing, dental health, and psychosocial well-being (Evidence: Moderate 1).References
1 Heydari MH, Sadeghian A, Khadivi G, Mustafa HJ, Javinani A, Nadjmi N et al.. Prevalence, trend, and associated risk factors for cleft lip with/without cleft palate: a national study on live births from 2016 to 2021. BMC oral health 2024. link