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Revista chilena de cirugía

versión On-line ISSN 0718-4026


LOPEZ-KOSTNER, FRANCISCO et al. Indications and results of the Endoluminal Ultrasonography. Rev Chil Cir [online]. 2007, vol.59, n.1, pp.31-37. ISSN 0718-4026.

Introduction: The endoluminal ultrasonography (EU) is a diagnostic alternative in the anorectal pathologies. Aim: To analyze the indications and results of the EU. Material and Method: Prospective, descriptive study, between November 1999 and September 2004. The results obtained with the EU were compared with surgical findings and biopsies results. Accuracy analysis was developed. Results: During this period 1000 patients underwent EU, (62% females, 55 years average). Indications were staging and follow up of rectal cancer (RC) in 279 patients, other tumors 119, fecal incontinence (FI) in 336, anal fistulae in 137, anal pain (AP) in 73 and other indications in 56 patients. In the assessment of RC the overall accuracy in staging depth of infiltration and lymph nodal involvement was 81.6% and 67.8% respectively. In the assessment of FI, the EU was normal in 17%, evidence abnormalities of both sphincters in 16%, only disrupt of external anal sphincter in 65% and isolated defect of internal anal sphincter in 2%. Thirty patients were operated in our institution, in them the accuracy between the EU results and the surgical find were 100%. In the assessment of anal fistulae, 10,2% EU results normal, 64,2% confirm the fistula, 13,1% evidence a collection and 12,5% other diagnosis. In the anal pain assessment, 36 (49.4%) EU was normal and 37 (50.7%) evidence alterations. Conclusion: The most frequent indications were the assessment of patients with fecal incontinence and the staging of rectal cancer. There are an adequate accuracy between the EU results and surgical findings

Palabras clave : Endosonography; anal canal.

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