Figure 4. Timing and diameter of pneumatic dilations in nine patients agreeing to further treatment at our institution. The left X coordinate shows the patient’s main symptom (P, chest pain; D, dysphagia) and the right X coordinate shows the final outcome of dilation (G, good; F, fair; N, none). The white dots indicate the 30-mm Rigiflex dilator, the striped dots the 35-mm dilator, and the gray dots the 40-mm dilator. All patients required multiple dilations and only one remained symptomatic.