INTRODUCTION: Computed tomographic mesenteric angiography (CTMA) is increasingly adopted in patients with massive lower gastrointestinal (LGI) bleeding. However, a positive computed tomography scan does not always translate to a positive invasive mesenteric angiography (MA) when performed. The aim of this study was to identify factors that could predict a positive invasive MA following a positive CTMA. METHODS: A review of all patients with LGI haemorrhage who had a positive CTMA followed by an invasive MA was performed. RESULTS: From July 2009 to October 2012, 33 positive CTMA scans from 30 patients were identified. Of the 33 bleeding points, 28 were in the colon, while 5 were in the small intestine. Diverticular disease accounted for 20 of the bleeding points. The median duration from the CTMA to the invasive MA was 165 (74-614) min. Of the 33 invasive MAs that were performed, only 14 demonstrated positive extravasation. Factors that were significant for a positive invasive MA included non-diverticular aetiology (odds ratio (OR), 6.75, 95 % confidence interval (CI), 1.43-31.90, p = 0.029) and haemoglobin <100 g/l (OR, 14.44, 95 % CI, 1.56-133.6, p = 0.009). When the invasive MA procedure was performed within <150 min of the positive CTMA scan, it was 2.89 (95 % CI, 0.69-12.12) times more likely to be associated with a positive invasive MA. CONCLUSIONS: Patients with non-diverticular aetiologies and lower haemoglobin levels are associated with a positive invasive MA following a positive CTMA. It is prudent to consider performing the invasive MA within 150 min after a positive CTMA.
INTRODUCTION: Computed tomographic mesenteric angiography (CTMA) is increasingly adopted in patients with massive lower gastrointestinal (LGI) bleeding. However, a positive computed tomography scan does not always translate to a positive invasive mesenteric angiography (MA) when performed. The aim of this study was to identify factors that could predict a positive invasive MA following a positive CTMA. METHODS: A review of all patients with LGI haemorrhage who had a positive CTMA followed by an invasive MA was performed. RESULTS: From July 2009 to October 2012, 33 positive CTMA scans from 30 patients were identified. Of the 33 bleeding points, 28 were in the colon, while 5 were in the small intestine. Diverticular disease accounted for 20 of the bleeding points. The median duration from the CTMA to the invasive MA was 165 (74-614) min. Of the 33 invasive MAs that were performed, only 14 demonstrated positive extravasation. Factors that were significant for a positive invasive MA included non-diverticular aetiology (odds ratio (OR), 6.75, 95 % confidence interval (CI), 1.43-31.90, p = 0.029) and haemoglobin <100 g/l (OR, 14.44, 95 % CI, 1.56-133.6, p = 0.009). When the invasive MA procedure was performed within <150 min of the positive CTMA scan, it was 2.89 (95 % CI, 0.69-12.12) times more likely to be associated with a positive invasive MA. CONCLUSIONS:Patients with non-diverticular aetiologies and lower haemoglobin levels are associated with a positive invasive MA following a positive CTMA. It is prudent to consider performing the invasive MA within 150 min after a positive CTMA.
Authors: Raquel E Davila; Elizabeth Rajan; Douglas G Adler; James Egan; William K Hirota; Jonathan A Leighton; Waqar Qureshi; Marc J Zuckerman; Robert Fanelli; Jo Wheeler-Harbaugh; Todd H Baron; Douglas O Faigel Journal: Gastrointest Endosc Date: 2005-11 Impact factor: 9.427
Authors: John DeBarros; Luis Rosas; Jeffrey Cohen; Paul Vignati; William Sardella; Michael Hallisey Journal: Dis Colon Rectum Date: 2002-06 Impact factor: 4.585