Displaying publications 1 - 20 of 72 in total

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  1. Chang CY
    IDCases, 2020;19:e00683.
    PMID: 31908947 DOI: 10.1016/j.idcr.2019.e00683
    Melioidosis is an infection caused by the Gram-negative bacterium Burkholderia pseudomallei. Melioidosis can affect any organ and result in a broad spectrum of diseases. Ocular involvement in melioidosis is rare but can potentially lead to devastating outcomes. We describe ocular manifestations in 3 patients diagnosed with culture-confirmed melioidosis in Kapit, Sarawak, Malaysian Borneo. Melioidosis affecting the eye can present as periorbital cellulitis and eyelid abscess. High clinical suspicion and early empirical treatment were crucial to a successful outcome. Surgical drainage of the abscess was an important part of management beyond standard antimicrobial therapy.
  2. Chang CY
    QJM, 2022 Jan 09;114(12):900.
    PMID: 34672355 DOI: 10.1093/qjmed/hcab269
  3. Chang CY
    J Ayub Med Coll Abbottabad, 2023;35(2):348-350.
    PMID: 37422837 DOI: 10.55519/JAMC-02-11390
    BACKGROUND: Splenic abscess is an uncommon condition, with autopsy studies estimating an incidence rate of 0.14-0.70%. Causative organisms can be extremely diverse. Burkholderia pseudomallei is the most common cause of splenic abscess in melioidosis-endemic areas.

    METHODS: We reviewed 39 cases of splenic abscesses in a district hospital in Kapit, Sarawak, from January 2017 to December 2018. The demographics, clinical characteristics, underlying diseases, causative organisms, therapeutic methods, and mortality rates were investigated.

    RESULTS: There were 21 males and 18 females (mean age, 33.7±2.7 years). Almost all patients (97.4%) had a history of pyrexia. Diabetes mellitus was present in 8 patients (20.5%). Splenic abscesses were diagnosed using ultrasonography and were multiple in all 39 cases. Positive blood cultures were obtained in 20 patients (51.3%), and all yielded B. pseudomallei. Melioidosis serology was positive in 9 of 19 patients (47.4%) with negative blood cultures. All patients were treated for melioidosis with antibiotics without the need for surgical intervention. All splenic abscesses resolved after anti-melioidosis treatment was completed. One patient died (2.6%) as a result of B. pseudomallei septicaemia with multiorgan failure.

    CONCLUSIONS: Ultrasonography is a valuable tool for diagnosing splenic abscesses in resource-limited settings. B. pseudomallei was the most common etiological agent of splenic abscesses in our study.

  4. Chang CY
    J Vector Borne Dis, 2023;60(4):432-434.
    PMID: 38174522 DOI: 10.4103/0972-9062.374238
    BACKGROUND & OBJECTIVES: Severe malaria is a medical emergency and can lead to severe complications and death if not treated promptly and appropriately. Along with Plasmodium falciparum, P. knowlesi is increasingly recognised as a significant cause of fatal and severe malaria.

    METHODS: We performed a retrospective review on 54 cases of severe malaria in a district hospital in Kapit, Sarawak, from January 2018 to May 2019. The patients' demographics, clinical features, complications based on organ involvement, and treatment outcomes were examined.

    RESULTS: There were 54 cases of severe malaria, with the majority being male (70%) and between the ages of 40 and 49 (26%). All patients with severe malaria were febrile or had a history of pyrexia except for one patient. P. knowlesi (81.5%) was the most common species causing severe malaria in our study, followed by P. falciparum (13%), and P. vivax (5.5%). There were no cases of severe malaria caused by P. ovale or P. malariae. Hyperparasitaemia was present in 76% of patients and the median parasitemia value at hospital admission was 33,944 parasites/μL (interquartile range: 19,920-113,285 parasites/μL). Circulatory shock was observed in 17 patients (31.5%). There were eight patients with acute renal failure and six patients with respiratory distress. One patient died as a result of severe malaria with multiorgan involvement (1.9% fatality rate).

    INTERPRETATION & CONCLUSION: P. knowlesi is the most common cause of severe malaria in Kapit, Sarawak, Malaysia. Recognizing symptoms of severe malaria and prompt administration of antimalarial are critical for good clinical outcomes.

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