Resumen

LANDAETA, J; DIAS, C; RODRIGUEZ, M  y  URDANETA, C. Enteroscopia de doble balón Vs. Enteroscopia de un solo balón en hemorragia digestiva de origen oscuro. Gen [online]. 2010, vol.64, n.1, pp.26-28. ISSN 0016-3503.

Introduction: The double-balloon enteroscopy (DBE) has proven to be a useful tool in diagnosis and treatment of patients with obscure gastrointestinal bleeding (OGB). More recently, single balloon enteroscopy (SBE) is a new developed method, which has the advantages of DBE and it seems easierto handle. Objective: To compare balloon enteroscopy methods in the assessment of OGB. Materials and patients: ItÊs a comparative retrospective study. From November 2007 to November 2008 subjects with OGB were enrolledand performed procedures of DBE or SBE. Two Fujinon systems were usedEN 450 5p-20 and EN 450 T5, 200 cm in length, outer diameter of 8.5 and 9.3 mm and overtube of 12.2 and 13.2 mm and one single balloon enteroscope Olympus 180-Q, outer diameter of 9.2 mm and 13.2 mm overtube. We recorded the time during: assembling the system, the procedure, fluoroscopy, segments evaluated, findings, therapeutic procedures and complications. Statistical analysis: for proportion used chi-square test, for continous data and dicotomic variable used student T test for independent sample. Significance level for contrast 5%. Used SPSS 14,0 for Windows for analysisdata. Results: 43 patients EDB, 40 SBE. Age and sex were similar in bothgroups. The assembly time was significantly lower with the SBE 1 min vs DBE 10 min (p <0.05). There was no difference in the time of fluoroscopy and segments evaluated in both groups (p> 0.05). The procedure time was less with the SBE 39 + / -11.8 in comparasion to DBE 50 + / -16.5 (p 0.001). There was a greater proportion of findings with the SBE 84.6% (60.5% DBE) (p <0.05), being angiodysplasia most frecuent finding. We performed endoscopic therapy in 75% of patients in the group of SBE and in 18.6% of the DBE (p <0.05). The diagnostic and therapeutic impact was greater with SBE 70% vs 51.2% with DBE(p <0.05). The rate of complications was low in both groups with 2.3% (DBE) and 2.5% (SBE) (p> 0.05). Conclusion: The DBE and SBE are safe techniques in evaluating patients with OGB, with a low risk of complications. Our statistical analysis showed that the SBE had a greater impact on the diagnosis and treatment than the DBE, with a higher percentage of findings and possible endoscopic therapy

Palabras clave : double-balloon enteroscopy (DBE); single balloon enteroscopy (SBE); obscure gastrointestinal bleeding (OGB).