Publications by authors named "Dominic Wang"

Background: Severe acute malnutrition (SAM) constitutes a substantial burden in African hospitals. Despite adhering to international guidelines, high inpatient mortality rates persist and the underlying contributing factors remain poorly understood.

Objective: We evaluated the 10-year trend (2011-2021) in clinical factors and outcomes among children with severe wasting and/or nutritional edema at Malawi's largest nutritional rehabilitation unit (NRU).

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Purpose: High flow nasal cannula (HFNC) is a relatively recent respiratory support technique which delivers high flow, heated and humidified controlled concentration of oxygen via the nasal route. Recently, its use has increased for a variety of clinical indications. To guide clinical practice, we developed evidence-based recommendations regarding use of HFNC in various clinical settings.

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Article Synopsis
  • The study aimed to assess the safety and effectiveness of high-flow nasal cannula (HFNC) compared to other oxygen delivery methods for critically ill adults who have just undergone extubation.
  • The systematic review analyzed data from eight randomized controlled trials, finding that HFNC reduced the risk of reintubation and postextubation respiratory failure when compared to standard oxygen therapy but had no significant effect on mortality or ICU stay lengths.
  • In comparison to noninvasive ventilation, HFNC showed no difference in reintubation rates or mortality, indicating that while HFNC may be beneficial in some areas, its overall impact remains uncertain due to varying levels of certainty in the data.
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Article Synopsis
  • High-flow nasal cannula (HFNC) has been shown to be more effective than conventional oxygen therapy (COT) in preventing intubation for patients experiencing acute hypoxic respiratory failure, although its effectiveness in the immediate postoperative period is less clear.
  • * The study included 11 randomized controlled trials (RCTs) with 2,201 patients, finding that HFNC significantly reduced reintubation rates and the need for increased respiratory support compared to COT.
  • * However, HFNC showed no significant differences in other outcomes, such as ICU length of stay, when compared to COT or noninvasive ventilation (NIV), indicating mixed results for its routine use postoperatively.*
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Objective: The role of high-flow nasal cannula during and before intubation is unclear despite a number of randomized clinical trials. Our objective was to conduct a systematic review and meta-analysis examining the benefits of high-flow nasal cannula in the peri-intubation period.

Data Sources: We performed a comprehensive search of relevant databases (MEDLINE, EMBASE, and Web of Science).

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Background: More children are now surviving severe acute malnutrition (SAM), but evidence suggests that early-life malnutrition is associated with increased risk of long-term cardio-metabolic disorders. To better understand potential mechanisms, we studied the metabolite profiles of children seven years after treatment for SAM.

Methods: We followed-up children (n = 352) treated for SAM in 2006-2007, at Queen Elizabeth Central Hospital, in Malawi.

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Context: Visceral fat (VF), more than fat elsewhere in the body [mostly subcutaneous fat (SF)], promotes systemic inflammation and related disease. The mechanisms of preferentially visceral accumulation of body fat are largely unknown.

Objective: To identify genetic loci and mechanistic pathways of preferential accumulation of VF and associated low-grade systemic inflammation.

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We hypothesized that monogenic syndromic obesity genes are also involved in the polygenic variation of BMI. Single-marker, tag single nucleotide polymorphism (tagSNP) and gene-based analysis were performed on common variants near 54 syndromic obesity genes. We used publicly available data from meta-analyses of European BMI genome-wide association studies conducted by the Genetic Investigation of ANthropometric Traits (GIANT) Consortium and the UK Biobank (UKB) ( = 681,275 adults).

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We conducted a hypothesis-free cross-trait analysis for waist-to-hip ratio adjusted for body mass index (WHR ) loci derived through genome-wide association studies (GWAS). Summary statistics from published GWAS were used to capture all WHR single-nucleotide polymorphisms (SNPs), and their proxy SNPs were identified. These SNPs were used to extract cross-trait associations between WHR SNPs and other traits through the NHGRI-EBI GWAS Catalog.

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Background: Mortality in children with severe acute malnutrition (SAM) remains high despite standardized rehabilitation protocols. Two forms of SAM are classically distinguished: kwashiorkor and marasmus. Children with kwashiorkor have nutritional edema and metabolic disturbances, including hypoalbuminemia and hepatic steatosis, whereas marasmus is characterized by severe wasting.

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