“…Surgery for constipation would normally be carried out on patients with the most refractory symptoms. In this review, 48 studies involving surgical treatment of constipation were included: 32 of which were surgical series, 6,[14][15][16]21,[26][27][28][29][30][32][33][34][35]37,39,41,43,45,46,48,49,[51][52][53][54]56,[58][59][60]63 while 16 were studies on colonic tissue obtained at colectomy. [8][9][10][11][17][18][19][20]22,23,25,31,36,44,62,66 Seven of the pathological series came from one center 10,11,…”