A sternal cleft is a rare birth defect in which the sternum, the flat bone at the front of the chest, does not fully form. This failure of the sternum to fuse together can lead to various chest wall abnormalities, respiratory problems, and even cardiovascular problems. Sternal clefts can range in severity from a simple gap to a full-blown deformity. They are most often diagnosed at birth, and although they are rare, early detection and correction of these changes is important to minimize the risk of complications.
History of the disease and interesting historical facts
Historically, cleft sternum has attracted the attention of physicians since ancient times. Eminent physicians such as Hippocrates and Galenius documented cases of this defect, but detailed study did not begin until the 18th century. References to cleft sternum can be found in the works of many anatomists and surgeons, but a full understanding and classification of this condition did not develop until the 20th century. In the 1930s and 1940s, the first surgical operations aimed at correcting the cleft began, which made it possible to significantly improve the quality of life of patients. Interestingly, cleft sternum is often associated with other malformations, such as cleft lip and/or palate, which is supported by historical studies and modern observations.
Epidemiology
Sternal cleft is a rare condition, with various epidemiological studies reporting an incidence of 1 in 10,000 to 1 in 25,000 live births. It can be an isolated anomaly or part of complex syndromes such as Brodie-Green syndrome or Costen syndrome. According to current medical data, sternal cleft is more common in males, with little regional variation. For example, some areas of Western Europe have a higher incidence, which may be due to environmental or genetic factors in the region.
Genetic predisposition to this disease
Given the congenital nature of sternum clefts, genetic factors that contribute to its development are being studied. It has now been established that a number of genes, such as TBX5 and NKX2-5, can play a key role in the formation of the sternum during embryonic development. Mutations in these genes are associated with various congenital anomalies and can lead to disruption of normal bone tissue fusion. The use of molecular genetic diagnostic methods allows for a detailed study of the genetic mechanisms underlying the development of sternum clefts, as well as the identification of family lines predisposed to this condition.
Risk factors for the development of this disease
There are various risk factors that can contribute to the development of a cleft sternum. These can be both physical and chemical, including:
- Genetic abnormalities in the family.
- Exposure to teratogenic factors such as alcohol, drugs and certain medications during pregnancy.
- The presence of concomitant congenital anomalies in the mother or in the family history.
- Maternal age (risk increases from 35 years and older).
- Ethnic and racial factors influencing morbidity.
Given all of the above factors, it is necessary to closely monitor pregnant women and their families for any predisposition to sternal clefts.
Diagnosis of this disease
Diagnosis of sternum cleft usually begins with a visual inspection and physical examination of the newborn. The main symptoms include:
- Breathing problems.
- Chest deformity.
- Limited mobility of the arms and shoulder girdle.
- Invisibility or underdevelopment of some areas of the sternum.
To confirm the diagnosis, various diagnostic methods are used, including:
- Chest X-ray.
- Ultrasound examination.
- Computed tomography.
- Magnetic resonance imaging.
It is also necessary to consider the possibility of conducting differential diagnostics to exclude other diseases accompanied by similar symptoms, such as Costen's syndrome or other malformations of the chest.
Treatment
Treatment of sternum clefts is complex and may include both conservative and surgical methods. General approaches to treatment include the following:
- Surgical intervention - the main method of correction is an operation aimed at eliminating the gap and restoring the chest wall.
- Pharmacological treatment - may include the use of drugs to relieve breathing problems and treat additional symptoms such as infections.
- Rehabilitation and physical therapy are important for restoring physical activity and improving quality of life.
- Psychological support - given the rarity and the impact of cleft sternum on the aesthetic component, the help of psychologists may be required.
It is important to remember that the choice of treatment methods depends on the severity of the disease and the presence of associated abnormalities.
List of medications used to treat this disease
The following medications may be used during treatment of sternum cleft:
- Antibiotics - for the prevention and treatment of respiratory infections.
- Inexpensive diuretics - if there is edema.
- Bronchodilators - to make breathing easier.
- Anti-inflammatory drugs - to reduce inflammation.
The choice of specific drugs should be made by the physician based on the individual indications of the patient.
Disease monitoring
After treatment, patients with sternum clefts should be monitored regularly. Monitoring steps may include:
- Routine radiographic examinations to assess the condition of the chest.
- Functional tests of the respiratory system.
- Consultations with a pediatrician and other specialists.
The prognosis with adequate treatment is usually good, although complications such as asthma or other respiratory diseases may occur. It is important to monitor the patient's general health and the development of any new symptoms.
Age-related features of the disease
Considering age-related features, it is worth noting that sternum cleft can be detected both in newborns and in older children. In newborns, the signs may be more pronounced and require urgent intervention. At the same time, adolescents and adults may have milder symptoms that may only appear during physical exertion or active activity. Older patients may also face psychological aspects related to the aesthetic perception of their appearance.
Questions and Answers
- What are the main symptoms of sternum cleft? The main symptoms include chest wall deformity, difficulty breathing and limited arm mobility.
- Can cleft sternum be hereditary? Yes, cleft sternum may have a genetic predisposition associated with mutations in certain genes.
- How is sternum cleft diagnosed? Diagnosis is made using visual examination, radiography and other radiological methods.
- What are the treatment options for sternum cleft? Treatment may include surgery, drug therapy, and rehabilitation.
- What is the prognosis for a cleft sternum? The prognosis with adequate treatment is usually good, although complications may arise that require additional monitoring.
