TY - JOUR T1 - COlonic propulsive impairment in intractable slow-transit constipation AU - Bassotti G, Chistolini F, Nzepa F, Morelli A Y1 - 2003/12/01 N1 - 10.1001/archsurg.138.12.1302 JO - Archives of Surgery SP - 1302 EP - 1304 VL - 138 IS - 12 N2 - Hypothesis  Intractable constipation, especially of the slow-transit subtype, may represent several pathophysiologic entities with a common final symptomatic appearance. An overall impairment of colonic propulsive activity may represent a major disease mechanism.Design  Case series.Setting  Tertiary university hospital.Subjects  Twenty-nine severely constipated patients with clinical and homogeneous features of slow-transit constipation that were unresponsive to conventional medical measures and 16 age-matched healthy volunteers.Interventions  Twenty-four–hour manometric recordings obtained in patients and controls to assess high- and low-amplitude colonic propulsive activity.Results  Compared with controls, patients showed heavily reduced high-amplitude propagated activity (average, <1 event per subject per day). No differences were found in low-amplitude propagated activity.Conclusions  Patients with severe constipation that is refractory to medical treatment may display an important reduction of colonic forceful propulsive activity. This may justify a surgical approach, which may offer the best results in such patients. It is, however, important to obtain thorough physiologic documentation before such a drastic approach is considered. The residual low-amplitude propulsive activity might represent a partially compensatory mechanism in these patients. Studies in more homogeneous groups of such patients are needed. SN - 0004-0010 M3 - doi: 10.1001/archsurg.138.12.1302 UR - http://dx.doi.org/10.1001/archsurg.138.12.1302 ER -