Hong Kong Med J 2009;15:249-54 | Number 4, August 2009
Bypass surgery or percutaneous transluminal angioplasty to treat critical lower limb ischaemia due to infrainguinal arterial occlusive disease?
AK Ah Chong, CB Tan, Maket WC Wong, Florence SK Cheng
Pedder Clinic, 25th Floor, 26 Nathan Road, Kowloon, Hong Kong
OBJECTIVES. To define the role of bypass surgery and percutaneous transluminal angioplasty to manage critical limb ischaemia due to infrainguinal arterial occlusive disease.
DESIGN. Retrospective review.
SETTING. Regional hospital, Hong Kong.
PATIENTS. Consecutive patients treated for critical limb ischaemia, for whom data were prospectively collected in those who underwent: (i) infrainguinal percutaneous transluminal angioplasty first, or (ii) infrainguinal bypass surgery.
RESULTS. Among patients with critical lower limb ischaemia, 364 consecutive individuals having infrainguinal bypass operations and 100 having percutaneous transluminal angioplasty first were compared. The latter patients were older (77 vs 74 years, P=0.014) and had more co-morbidities but higher ankle pressure than those having bypass surgery. In the angioplasty-first group, 74% had favourable lesions (classified as TransAtlantic Inter-Society Consensus A/B). In the bypass group, operative mortality was higher (4% vs 1%, P=0.03) than that in the angioplasty-first group. Hospital mortality was comparable (8% vs 3%, P=0.15). In the bypass group, median hospital stay was longer than that in the angioplasty-first group (24 vs 4 days, P
CONCLUSION. Infrainguinal bypass and percutaneous transluminal angioplasty are complementary. For TransAtlantic Inter-Society Consensus A and B lesions, percutaneous transluminal angioplasty should be offered first. For American Society of Anesthesiologists class 4 patients, percutaneous transluminal angioplasty should be considered first, regardless of the TransAtlantic Inter-Society Consensus class.
Key words: Angioplasty, balloon; Arterial occlusive diseases; Ischemia; Leg
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