Hepatitis B Virus (HBV)

Category: Haemophilus influenzae

‘I feel faint’: An adolescent with recurrent dizziness and syncope. DIAGNOSIS: LONG QT SYNDROME (part 3)

The empirical treatment with topiramate (the patient’s only medication use) was followed by a marked increase in the frequency of symptoms. It is well recognized that there are certain classes of medications that may be dangerous in patients with type 2 LQTS due to prolongation of the period of cardiac cellular repolarization. This was initially […]

‘I feel faint’: An adolescent with recurrent dizziness and syncope. DIAGNOSIS: LONG QT SYNDROME (part 2)

An electrocardiogram (ECG) revealed sinus bradycardia with a heart rate of 47 beats/min, a QT interval of 663 ms, and a corrected QT interval (QTc) of 587 ms. There was a markedly abnormal biphasic T-wave morphology with a prominent second component or U-wave. A transthoracic echocardiogram showed normal cardiac anatomy and function. On admission, the […]

'I feel faint': An adolescent with recurrent dizziness and syncope. DIAGNOSIS: LONG QT SYNDROME

‘I feel faint’: An adolescent with recurrent dizziness and syncope. DIAGNOSIS: LONG QT SYNDROME (part 1)

Four years before presentation, a 16-year-old boy began to experience episodes of dizziness, dyspnea and tinnitus. The patient was referred for a neurological evaluation, at which time no abnormalities were detected. An electroencephalogram and a magnetic resonance imaging scan of the brain were normal. A series of antiepileptic medications were initiated due to clinical suspicion […]

HAEMOPHILUS INFLUENZAE TYPE B EPIGLOTTITIS (part 3)

The current incidence of Hib disease is less than one case per 100,000 children each year. The Canadian Immunization Monitoring Program ACTive (IMPACT) group showed a 95.1% decrease in the incidence of Hib infections between 1985 and 1994. However, this same study found that there were 24 cases of Hib infection in 1994 and one-third […]

HAEMOPHILUS INFLUENZAE TYPE B EPIGLOTTITIS (part 2)

Epiglottitis is a term used to describe supraglottic inflammation and was most commonly attributed to infection with Hib before the advent of the conjugate influenzae vaccine. The spectrum of pathogens has widened and includes Staphylococcus aureus, Staphylococcus pneumoniae and Haemophilus parainfluenzae. The peak incidence of infection is usually 3.5 years of age. The initial presentation […]

HAEMOPHILUS INFLUENZAE TYPE B EPIGLOTTITIS

HAEMOPHILUS INFLUENZAE TYPE B EPIGLOTTITIS (part 1)

A previously healthy 18-month-old girl was brought to the emergency department with a 2 h history of fever and stridor. On arrival, the patient’s temperature was 38.5°C, heart rate 200 beats/min, respiratory rate 40 breaths/min and oxygen saturation was 97% on room air. On initial assessment, the patient had a hoarse cry, inspiratory stridor and […]

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