H-W Cheong

Changi General Hospital, Tumasik, Singapore

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Publications (2)3.81 Total impact

  • G Anil, A G S Tan, H-W Cheong, K-S Ng, W-C Teoh
    [Show abstract] [Hide abstract]
    ABSTRACT: To determine the feasibility, safety, and efficacy of adopting a standardized protocol for emergency transarterial embolization (TAE) of the gastroduodenal artery (GDA) with a uniform sandwich technique in endotherapy-failed bleeding duodenal ulcers (DU). Between December 2009 and December 2010, 15 patients with endotherapy-failed bleeding DU were underwent embolization. Irrespective of active extravasation, the segment of the GDA supplying the bleeding DU as indicated by endoscopically placed clips was embolized by a uniform sandwich technique with gelfoam between metallic coils. The clinical profile of the patients, re-bleeding, mortality rates, and response time of the intervention radiology team were recorded. The angioembolizations were reviewed for their technical success, clinical success, and complications. Mean duration of follow-up was 266.5 days. Active contrast-medium extravasation was seen in three patients (20%). Early re-bleeding was noted in two patients (13.33%). No patient required surgery. There was 100% technical success, while primary and secondary clinical success rates for TAE were 86.6 and 93.3%, respectively. Focal pancreatitis was the single major procedure-related complication. There was no direct bleeding-DU-related death. The response time of the IR service averaged 150 min (range 60-360 min) with mean value of 170 min. Emergency embolization of the GDA using the sandwich technique is a safe and highly effective therapeutic option for bleeding DUs refractory to endotherapy. A prompt response from the IR service can be ensured with an institutional protocol in place for such common medical emergencies.
    Clinical Radiology 12/2011; 67(5):468-75. DOI:10.1016/j.crad.2011.10.026 · 1.66 Impact Factor
  • G. Anil, A. Tan, H. Cheong, K. Ng, W. Teoh
    Journal of Vascular and Interventional Radiology 03/2011; 22(3). DOI:10.1016/j.jvir.2011.01.076 · 2.15 Impact Factor

Publication Stats

1 Citation
3.81 Total Impact Points


  • 2011
    • Changi General Hospital
      • Department of Radiology
      Tumasik, Singapore