PubMed · 15400205
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SALMON. Bladder exstrophy. https://pubmed.ncbi.nlm.nih.gov/15400205/
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BACKGROUND AND AIMS: This study was conducted to evaluate the complications and bleeding associated with either thrombocytopoenia or prolongation of prothrombin time for ultrasound-guided abdominal paracentesis in the emergency department. STUDY DESIGN AND PATIENTS: In an emergency department of a tertiary centre, patients receiving ultrasound-guided abdominal paracentesis by the emergency physicians were prospectively enrolled. Patient characteristics, the preprocedure international normalised ratio for prothrombin time and the platelet count, and the procedure-related complications were collected and analysed. RESULTS: For a 2-year study period, a total of 410 abdominal paracenteses in 163 patients were investigated. The preprocedure international normalised ratio for prothrombin time was more than 1.5 in 142 paracenteses; the preprocedure platelet count was less than 50 x 10(3) microL(-1) in 55 paracenteses. Only two out of 410 procedures (0.5%, 95% confidence interval=0.1-1.8%) were associated with minor complications of cutaneous bleeding in the same patient (0.6%, 95% confidence interval=0.1-3.4%) at different visits. There was no significant procedure-related bleeding or complications even in patients with marked thrombocytopoenia or prolongation in international normalised ratio. CONCLUSIONS: Bleeding complication of ultrasound-guided abdominal paracentesis is uncommon and appears to be very mild, regardless of preprocedure international normalised ratio or platelet count. Routine correction of prolonged international normalised ratio or thrombocytopoenia before abdominal paracentesis may not be necessary.
To develop a novel method of detecting rectal cancer, we assessed relationships between intra-abdominal fat distribution and rectal cancer in Japanese patients. Subjects comprised 38 patients with rectal cancer apparent on CT-colonography and 110 other cases. The intra-abdominal fat area was determined by calculating pixel distribution with attenuation values from -140 HU to -40 HU. The area of intra-abdominal fat was measured on axial images using an interslice gap of 10 mm. Profile curves of intra-abdominal fat were in the plane direction from diaphragm to anus. Of note is the fact that Ogura's peak, a secondary small peak around the rectal cancer, was apparent on the profile of intra-abdominal fat, with 73.7% of rectal cancers displaying Ogura's peak. In comparison, only 19.1% of other cases displayed Ogura's peak on this profile. The relationship between fat and rectal cancer is difficult to explain. However, making good use of these results showing intra-abdominal fat distribution, a computer-aided diagnosis (CAD) system for detecting rectal cancer according to the presence of Ogura's peak has potential as a method of mass screening. As only 148 cases were investigated in the present study, the accumulation of additional data is needed. More detailed studies with larger patient populations are warranted.
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