Publications by authors named "Daniel Kwok-Keung Ng"

Background: Long-term home noninvasive ventilation (NIV) is increasingly employed in children with sleep-disordered breathing and chronic respiratory failure. While studies suggest its successful implementation in tertiary care centers, little is known about the situation in a general care setting. Hence, we aim to evaluate the clinical profiles of these children in a general pediatric unit over the past two decades.

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Background: A functional definition of ankyloglossia has been based on assessment of tongue mobility using the tongue range of motion ratio (TRMR) with the tongue tip extended towards the incisive papilla (TIP). Whereas this measurement has been helpful in assessing for variations in the mobility of the anterior one-third of the tongue (tongue tip and apex), it may be insufficient to adequately assess the mobility of the posterior two-thirds body of the tongue. A commonly used modification is to assess TRMR while the tongue is held in suction against the roof of the mouth in lingual-palatal suction (LPS).

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Objective: Heated humidified high flow nasal cannula (HHHFNC) has gained popularity in the treatment of children with respiratory distress and bronchiolitis in the past decade. Its efficacy as a mode of non-invasive respiratory support has been demonstrated in both adults and children. However, reports on its use in the treatment of obstructive sleep apnea (OSA) in infants are limited.

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Background: Hong Kong has a high burden of influenza hospitalisation. This study estimated influenza vaccine effectiveness in hospitalised Hong Kong children aged 6 months to below 6 years using data potentially obtainable from routine surveillance sources.

Methods: This 'test-negative' case-control study was conducted over two summer and one winter influenza seasons in five public Hong Kong hospitals during 2015 and 2016.

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Preschool wheeze occurs in half of the children before they reach 6 y of age and recurrence is also common. Recurrent preschool wheeze is classified as either typical or atypical. For typical recurrent preschool wheeze, the diagnoses are either asthma or bronchiolitis/bronchitis.

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Aim: To evaluate the cost-effectiveness of palivizumab prophylaxis for premature infants born <29 weeks in Hong Kong.

Method: We evaluated the hospitalization rate for respiratory syncytial virus (RSV) infection within the first 12 months of discharge of a cohort of preterm infants born between 2010 and 2014 at two local hospitals.

Results: In total, 40 of 135 infants were given palivizumab.

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Objectives: Traditional Chinese medicine are commonly used for treatment of asthma. However, there are only very limited data about its efficacy in children. Therefore, we aimed to determine the efficacy of augmented Yu Ping Feng San (aYPFS) as an add-on to oral montelukast compared with montelukast alone for treatment of mild persistent asthma in children.

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Background: Mercury is a well-known neurotoxin. There are three kinds of mercury exposure: elemental mercury poisoning, inorganic mercury poisoning and organomercury poisoning. Organomercury is the most toxic.

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Acute muscle weakness with severe hypokalaemia is not uncommon in adults but is rare in children. An 11-month-old girl presented with hypokalaemic paralysis following a 1-month insufficiency of dietary potassium.

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We described a case of obstructive sleep apnea secondary (OSAS) to pharyngomalacia and laryngomalacia in a neonate with Down syndrome. She presented with oxygen requirement and paradoxical breathing without stridor. Sleep polysomnography revealed obstructive apnea (obstructive apneic index of 14 h(-1)).

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Background: Noncontact forehead temperature measurement by handheld infrared thermometer was used as a screening tool for fever. However, the accuracy data and normal range of forehead temperature determined by this method were not available.

Methods: The temperature readings from 3 handheld infrared thermometers were validated against an electronic thermometer.

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Aim: The widespread use of antibacterial therapy has been suggested to be the cause for the decline in the prevalence of Helicobacter pylori infection. This study examine the serial changes of urea breath test results in a group of hospitalized patients who were given antibacterial therapy for non-gastric infections.

Methods: Thirty-five hospitalized patients who were given antibacterial therapy for clinical infections, predominantly chest and urinary infections, were studied.

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A case of fatal pharyngitis.

Int J Pediatr Otorhinolaryngol

February 2002

Pharyngitis is a common condition and usually does not lead to any major complication. We report a case in which the patient presented with pharyngitis resulting in an unusual fatal complication of pharyngeal and cerebral abscess. The causative organism was Streptococcus milleri that should be readily treatable by penicillin if the condition was recognised earlier.

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