Retinopathy of prematurity (ROP) is a progressive retinal disease that occurs in premature infants, especially those born before 32 weeks of gestation or with low birth weight. The disease is associated with abnormal development of the retinal blood vessels, which can lead to neovascularization, retinal detachment, and even blindness. As a result of disturbances in the vascular plate of the eye and oxygen dynamics, ROP has its own characteristics and requires careful monitoring. The epidemiology of the disease shows that its prevalence depends on the degree of prematurity, as well as the quality and availability of medical care.
History of the disease and interesting historical facts
Retinopathy of prematurity was first described in 1942 when doctors noted ocular abnormalities in newborns kept on high concentrations of oxygen in neonatal intensive care units. This led to the study of the relationship between oxygen therapy and the development of retinal pathology. In the 1950s, the first studies of retinopathy as a separate disease began, and in the 1960s, the German ophthalmologist Friedrich K. Scharf formalized it in clinical practice. Interestingly, in the 1980s, the concept of “threshold retinopathy” was introduced, which made it possible to identify critical moments for the initiation of treatment, which significantly improved treatment outcomes and reduced the risk of blindness in preterm infants.
Epidemiology
The epidemiology of retinopathy of prematurity shows considerable variability depending on the region, level of medical care and application of modern technologies. According to various studies, the prevalence of ROP in children born before 28 weeks of gestation can reach 50% and higher. According to the World Health Organization, the frequency of severe forms of ROP ranges from 10% to 20% among premature infants. In modern conditions, due to improvement of perinatal care methods, there is a tendency to decrease the incidence. However, in children with a body weight of less than 1500 grams, the risk remains significantly high, which requires constant monitoring.
Genetic predisposition to this disease
To date, a certain genetic predisposition to the development of retinopathy of prematurity has been established. Studies show that the genetic factors involved may include mutations affecting vascular development and oxygen exchange in the retina. The main genes that have shown an association with ROP include GDNF, VEGFA, and some genes responsible for angiogenesis. For example, polymorphism of the VEGFA gene may increase the risk of developing vascular anomalies. In addition, the presence of concomitant genetic diseases in premature infants can also increase the likelihood of developing ROP, which indicates the importance of genetic counseling and screening in routine practice.
Risk factors for the development of this disease
Risk factors that contribute to the development of retinopathy of prematurity can be divided into several categories:
- Physical factors:
- Prematurity (less than 32 weeks of gestation);
- Low birth weight (less than 1500 grams);
- Postnatal development of respiratory diseases.
- Chemical factors:
- Oxygen therapy, especially in the early stages of life;
- Use of vasodilators.
- Other factors:
- Presence of complications during pregnancy (preeclampsia, diabetes);
- Decreased Apgar level in the first minutes of life.
Diagnosis of this disease
Diagnosis of retinopathy of prematurity includes several main stages:
- Main symptoms:
- Disturbances in light perception;
- Slipping and difficulty focusing the eyes;
- Signs of excessive light protection.
- Laboratory tests:
- Blood oxygen level assessment;
- General blood tests to detect inflammatory processes.
- Radiological examinations:
- Ultrasound examination of the fundus;
- Fluorescein angiography to clarify vascular changes.
- Other types of diagnostics:
- Examination of the fundus using an ophthalmoscope;
- Controlled vision assessment in older children.
- Differential diagnosis:
- Anomalies in retinal development;
- Traumatic eye injury;
- Other forms of vasculopathy.
Treatment
Treatment of retinopathy of prematurity can be either conservative or surgical, depending on the severity of the disease:
- General treatment:
- Monitoring oxygen levels in incubators;
- Compliance with the nutrition and care regimen for premature babies.
- Pharmacological treatment:
- Use of angiogenesis inhibitors such as Bevacizumab;
- Prescribing vitamins such as vitamin E to maintain eye health.
- Surgical treatment:
- Laser coagulation of the retina to destroy pathologically altered vessels;
- Vitrectomy for retinal detachment.
- Other types of treatment:
- Rehabilitation in specialized ophthalmological centers;
- Vision and developmental monitoring program.
List of medications used to treat this disease
The list of essential drugs used in the treatment of retinopathy of prematurity includes:
- Bevacizumab (Avastin);
- Ranibizumab (LUCENTIS);
- Low dose aspirin to reduce inflammation.
- Diclofenac in the form of ophthalmic drops.
- Glucocorticoids of local and systemic action in severe inflammatory processes.
Disease monitoring
Monitoring eye health in premature infants involves regular examinations and the use of assessment ranges to determine prognosis:
- Control stages:
- The first examination is 4-6 weeks after birth;
- Additional examinations - at intervals of two weeks.
- Forecast:
- Favorable prognosis with timely intervention;
- Risk of blindness increases with late diagnosis.
- Complications:
- Permanent vision loss;
- Pathological changes in other parts of the eye.
Age-related features of the disease
Retinopathy of prematurity demonstrates differences in its course depending on the age category of patients:
- Newborns:
- The main risk is in the first weeks of life;
- Need for regular monitoring.
- Older children:
- Potential vision problems may appear later;
- They may have problems with their learning and social adaptation.
Questions and Answers
- What is retinopathy of prematurity?
Retinopathy of prematurity is a retinal disorder that occurs in premature babies due to abnormal development of the retinal blood vessels, which can lead to blindness. - What are the main risk factors for developing ROP?
Major risk factors include prematurity, low birth weight and oxygen therapy. - What diagnostic methods are used to detect RN?
Diagnostic methods include fundus examination, ultrasound, and fluorescein angiography. - What is the treatment for retinopathy of prematurity?
Treatment includes pharmacological interventions, laser coagulation and rehabilitation measures. - What is the prognosis for children with retinopathy of prematurity?
The prognosis depends on the severity of the disease and the timeliness of treatment; with early intervention, the likelihood of vision restoration is high.
