CEREBELITIS POST VARICELA PDF

The illness has a short prodrome of fever, lethargy and anorexia followed by eruption of the rash that occurs over the next three to five days. The rash consists of crops of small papules that quickly become vesicular and then crust over after the vesicles have ruptured. Usually the lesions are all fully crusted over by 10 days. The lesions may occur anywhere but the scalp, face, trunk, mouth and conjunctivae are the most typical locations. Chickenpox is generally a benign and self limiting disease but may be associated with complications including bacterial superinfection particularly group A beta haemolytic streptococcus and Staph aureus , pneumonia, encephalitis, cerebellitis, hepatitis, arthritis and Reye syndrome.

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The illness has a short prodrome of fever, lethargy and anorexia followed by eruption of the rash that occurs over the next three to five days. The rash consists of crops of small papules that quickly become vesicular and then crust over after the vesicles have ruptured. Usually the lesions are all fully crusted over by 10 days. The lesions may occur anywhere but the scalp, face, trunk, mouth and conjunctivae are the most typical locations.

Chickenpox is generally a benign and self limiting disease but may be associated with complications including bacterial superinfection particularly group A beta haemolytic streptococcus and Staph aureus , pneumonia, encephalitis, cerebellitis, hepatitis, arthritis and Reye syndrome.

Complications are more common in infants, people over 15 years of age and immunocompromised children. Bacterial cellulitis tends to be over-diagnosed. Chickenpox lesions normally have significant erythema around them, particularly in the crusting stages of development. Recurrence of infection results in the localised phenomenon known as herpes zoster or shingles. In children zoster can spread over more than one dermatome, but is usually milder than in adults and post-herpetic neuralgia is less common.

Contact with chickenpox Click on image for full view. Clinical diagnosis of chickenpox Click on image for full view. In immunocompetent children no specific therapy is indicated.

Keeping the skin cool may reduce the number of lesions. Scratching increases the risk of secondary bacterial infection - cut the child's nails short at the first sign of the disease. Avoid aspirin. Aciclovir is indicated in children with impaired immunity, certain neonates see diagram , and possibly severe eczema.

The patient is infectious from one to two days before the onset of the rash until the lesions have fully crusted over. Children must be excluded from school until fully recovered all lesions crusted over or at least one week after the eruption first appears. If possible, hospitalisation should be avoided, because of the infectious risk to other patients. Any admitted child with active chickenpox or zoster should be isolated.

Despite a relatively low complication rate, varicella is an important contributor to hospitalisations and mortality. The vaccine is effective in the prevention of varicella in children, has few side effects mainly local reactions, low grade fever and mild varicella rash and is recommended for children over 12 months of age without a history of varicella, and for seronegative adults.

Varicella vaccine has been used to prevent infection following exposure in some small studies. This was successful if the vaccine was given within three days of exposure. The dosage of ZIG recommended in the table differs from that in the product information to minimise wastage. Normal human immunoglobulin can be used for the prevention of varicella if ZIG is unavailable - consult dosing information.

The Royal Children's Hospital Melbourne. Chickenpox varicella. Chickenpox varicella Chickenpox is due to varicella-zoster-virus.

The incubation period is from 10 to 21 days most commonly 14 to 16 The illness has a short prodrome of fever, lethargy and anorexia followed by eruption of the rash that occurs over the next three to five days. Click on image to see larger view Vesicular lesions with erythematous margins.

Click on image to see larger view Rash later in course with many lesions crusting Chickenpox is generally a benign and self limiting disease but may be associated with complications including bacterial superinfection particularly group A beta haemolytic streptococcus and Staph aureus , pneumonia, encephalitis, cerebellitis, hepatitis, arthritis and Reye syndrome.

Therapy Contact with chickenpox Click on image for full view Clinical diagnosis of chickenpox Click on image for full view In immunocompetent children no specific therapy is indicated. Infection precautions The patient is infectious from one to two days before the onset of the rash until the lesions have fully crusted over.

Vaccination Despite a relatively low complication rate, varicella is an important contributor to hospitalisations and mortality. Weight of patient kg Dose IU 1 vial 2 vials over 30 3 vials.

Click on image to see larger view Rash later in course with many lesions crusting. Weight of patient kg. Dose IU.

DISCURSO SOBRE COLONIALISMO AIME CESAIRE PDF

A case of cerebellar ataxia associated with VZV infection

La varicela puede tener complicaciones, pero no son comunes en personas sanas que contraen la enfermedad. Las personas que pueden contraer un caso grave de varicela y que pueden tener mayor riesgo de complicaciones incluyen las siguientes:. Algunas personas con complicaciones graves por la varicela pueden estar tan enfermas que tengan que ser hospitalizadas. Muchos de los adultos sanos que murieron por varicela contrajeron la enfermedad de sus hijos que no estaban vacunados.

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Complicaciones

Acute cerebellitis AC is the most common neurological complication of varicella. Nevertheless, it has been scarcely studied. The objective of this study were to asses the occurrence of AC among children hospitalized for varicella and to analyze its specific clinical picture and outcome. We retrospectively reviewed the medical records of children admitted to the hospital for varicella between 1 st October and 1 st June and we compared our results with literature. Children were all unvaccinated for varicella. In our case series, AC was found out in 48 out of patients

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