Abstract:
BACKGROUND AND AIM:Liver stiffness measurement (LSM) with transient elastography is a non-invasive and reliable test for liver fibrosis. However a small proportion of patients may have unreliable LSM or LSM failure. The aim of the present study was to investigate the factors associated with unreliable LSM or LSM failure in Chinese patients. METHODS:We prospectively recruited liver patients for LSM. Unreliable LSM was defined as < 10 valid shots, an interquartile range (IQR)/LSM > 30%, or a success rate < 60%. LSM failure was defined as zero valid shots. RESULTS:Among 3205 patients with LSM, 371 (11.6%) and 88 (2.7%) had unreliable LSM and LSM failure, respectively. The rates started to increase when body mass index (BMI) ≥ 28.0 kg/m(2) . Comparing patients with BMI ≥ 28.0-29.9 kg/m(2) versus those with BMI ≥ 30.0 kg/m², the rates of unreliable LSM (16.4% vs 18.9%; P = 0.62) and LSM failure (11.8% vs 17.8%; P = 0.16) were similar. BMI ≥ 28.0 kg/m² was the most important factor associated with unreliable LSM (odds ratio [OR] = 2.9, 95% confidence interval [CI] = 2.1-3.9, P < 0.0001) and LSM failure (OR = 10.1, 95% CI = 6.4-14.2, P < 0.0001). Central obesity, defined as waist circumference > 80 cm in women and > 90 cm in men, was another independent risk factor of unreliable LSM (OR = 1.3, 95% CI = 1.0-1.6, P = 0.04) and LSM failure (OR = 5.8, 95% CI = 2.9-11.5, P < 0.0001). CONCLUSION: BMI ≥ 28.0 kg/m² and central obesity were the independent risk factors of unreliable LSM and LSM failure in Chinese, and these rates were significantly higher in patients with extreme BMI.
journal_name
J Gastroenterol Hepatoljournal_title
Journal of gastroenterology and hepatologyauthors
Wong GL,Wong VW,Chim AM,Yiu KK,Chu SH,Li MK,Chan HLdoi
10.1111/j.1440-1746.2010.06510.xsubject
Has Abstractpub_date
2011-02-01 00:00:00pages
300-5issue
2eissn
0815-9319issn
1440-1746journal_volume
26pub_type
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