Therapeutic impact of colon capsule endoscopy with PillCam(TM) COLON 2 after incomplete standard colonoscopy: a Spanish multicenter study

Nogales, Óscar; García-Lledó, Javier; Luján, Marisol; Nicolás, David; Juanmartiñena, José Francisco; González-Suárez, Begoña; Sánchez-Ceballos, Francisco; Couto, Ignacio; Olmedo, José; Garfia, Cristina; Carretero, Cristina; Fernández-Urién, Ignacio; Rodríguez, Sarbelio; Asteinza, Matilde; Olivencia, Pilar; Masedo, Ángeles; Muñoz-Navas, Miguel; Merino, Beatriz; González-Asanza, Cecilia

Introduction:

Colon capsule endoscopy (CCE) is an alternative approach for the examination of the colon in patients who refuse colonoscopy or after incomplete colonoscopy (IC). We conducted a study to determine the frequency of complete colonoscopy after IC, the diagnostic yield of CCE, the therapeutic impact of lesions found in CCE, the level of colon cleanliness and the safety of the procedure.

Methods:

We performed a prospective, multicenter study involving ten Spanish hospitals. Consecutive outpatients aged ≥ 18 years with previous IC were invited to participate. The latest version of the CCE device, PillCam(TM) COLON 2 (CCE-2), was administered to all patients according to the protocol.

Results:

The study population comprised 96 patients. The most frequent cause of IC was the inability to move past a loop using standard maneuvers (75/96 patients, 78%). Complete visualization of the colon was obtained with CCE-2 in 69 patients (71.9%). Of the 27 patients in whom the CCE-2 did not reach the hemorrhoidal plexus, it passed the colonic segment explored with the previous colonoscopy in 20 cases; therefore, it could be inferred that a combined approach (CCE-2 plus colonoscopy) enabled complete visualization of the colonic mucosa in 92.7% of patients. CCE-2 revealed new lesions in 58 patients (60.4%). Polyps were the most frequent finding (41 patients; 42.7% of the total number of patients). In 43 of the 58 patients (44.8% of the total number of patients), the new lesions observed led to modification of therapy, which included a new colonoscopy for polyp resection or surgery in patients with colonic neoplasm.

Conclusions:

CCE-2 is a suitable diagnostic procedure that can lead to more frequent diagnosis of significant colonic lesions after IC (AU)

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