Neonatal dacryocystitis

Introduction to neonatal dacryocystitis Neonatal dacryocystitis is due to the absence of degeneration of the residual embryonic membrane at the lower end of the nasolacrimal duct, obstructing the lower end of the nasolacrimal duct, and tears and bacteria remaining in the lacrimal sac, causing secondary infection. Neonatal dacryocystitis is a relatively common eye disease, which is manifested by the fact that the baby's eyes are often tearful. There are many concentrated secretions in the baby's eyes. The age of onset can be as early as possible. Some have symptoms on the first day after birth, and some may appear after about one week or one month later. Neonatal dacryocystitis is due to the absence of degeneration of the embryonic residual membrane at the lower end of the nasolacrimal duct, obstructing the lower end of the nasolacrimal duct, tears and bacteria remaining in the lacrimal sac, causing secondary infection, about 2 to 4% of full-term production Infants may have such residual membrane obstruction, but most of the residual membranes are expected to self-shrink and regain patency within 4 to 6 weeks after birth. Because of the dysplasia of the nasolacrimal duct, stenosis is rare. basic knowledge The proportion of illness: 0.02% Susceptible people: infants and young children Mode of infection: non-infectious Complications: conjunctivitis

Causes of neonatal dacryocystitis

Anatomical factors (60%):

Neonatal dacryocystitis is due to the absence of degeneration of the embryonic residual membrane at the lower end of the nasolacrimal duct, obstructing the lower end of the nasolacrimal duct, tears and bacteria remaining in the lacrimal sac, causing secondary infection, about 2 to 4% of full-term production Infants may have such residual membrane obstruction, but most of the residual membranes are expected to self-shrink and regain patency within 4 to 6 weeks after birth. Because of the dysplasia of the nasolacrimal duct, stenosis is rare.

Low immunity (35%):

Because the neonatal immune system is not yet fully developed, the immunity is poor, and the resistance to external bacterial viruses is low, so it is easy to infect bacteria and cause inflammation.

Neonatal dacryocystitis prevention

At present, the incidence of congenital dacryocystitis is slightly higher. As long as parents pay attention to the observation of the baby's eyes, there are tears and eyelids. Please go to the hospital for treatment. The sooner the treatment is better.

Neonatal dacryocyst complications Complications conjunctivitis

Neonatal long-term dacryocystitis, the safety of the eye is a serious threat, progressive corneal ulcer or eye penetrating injury, internal eye surgery can cause full ocular inflammation, severe corneal infection can cause corneal perforation, blindness.

Neonatal symptoms of dacryocystitis Common symptoms Newborn eyelids, multiple eyes, more eyes, itchy, tears, red eyes, sinus, lacrimal sac, red eyes

There are three major symptoms, tears, a lot of eyelids, and eyelid eczema, which is something infected in the tears, which can irritate the eyelid skin and produce eczema. The baby is found to have a lump in the lacrimal sac after 1 to 2 weeks of birth. Red, swollen, tenderness and other acute inflammatory manifestations, occasionally can cause symptoms of acute dacryocystitis.

Neonatal dacryocystitis

Examination revealed a lump in the lacrimal sac, elastic, and no acute inflammation such as redness, swelling, and tenderness.

1. Blood routine examination: routine blood tests during acute dacryocystitis can determine the extent and nature of the infection.

2. Bacterial culture and drug sensitivity test of lacrimal sac secretions to identify the nature of infection and the types of pathogenic bacteria, and provide an important reference for drug treatment.

3. Pathological examination: chronic inflamed lacrimal sac, cystic wall fibrosis, thickening can reach 2 to 3 times of normal, the cystic cavity is extremely narrow; but when expanded into mucinous cyst, the cyst wall is extremely thin and the mucous membrane is coarse and velvety. , wrinkles increase, granules or polyps can fill the cyst or cause complete obstruction at the lower end of the lacrimal sac. A large number of inflammatory cells infiltrate in the submucosal tissue, and their cellular components vary with the degree of urgency and chronicity. The acute phase is polymorphonuclear leukocytes and lymphocytes; the chronic phase is mononuclear cells, eosinophils, plasma cells and epithelioid cells; the elderly patients have fibroblasts. The submucosal elastic tissue is replaced by fibrous tissue, and the scar tissue is formed into a narrowing of the cystic cavity. The junction of the lacrimal sac and the nasolacrimal duct is a fiber-like occlusion of the lacrimal sac. The mucosal surface of the lacrimal sac is a stratified epithelium and a continuous epithelium of the skin. In the early stage, the pus is drained for a long time, and the acute inflammation subsides and turns into a watery sample.

Diagnosis and identification of neonatal dacryocystitis

diagnosis

Neonatal dacryocystitis has three major symptoms, tearing, a large number of eyelids, and eyelid eczema, which is an infection in the tears, which can irritate the eyelid skin and produce eczema. One to two weeks after the birth of the baby, it was found that there was a lump in the lacrimal sac, which was elastic and had no acute inflammation such as redness, swelling and tenderness, and occasionally caused symptoms of acute dacryocystitis.

Differential diagnosis

1. The sebaceous gland cyst is superficial and has no fistula.

2. Cold abscess: combined with x-ray photos and detailed medical history, you can confirm the diagnosis.

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