[Reappearance of esophageal peristalsis after treatment of achalasia. Reality or artifact?].

The authors discuss the question of the reappearance of esophageal peristalsis following surgical or dilating treatment in patients with a diagnosis of cardiospasm. On the basis of their experience and an extensive review of the literature, the authors affirm that the reappearance of motor activity should not be attributed to a condition of pure achalasia but rather to an intermediate motor disorder with pseudo-achalasic characteristics which are difficult to discriminate.