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Ann Thorac Surg 1992;54:1046-1052
© 1992 The Society of Thoracic Surgeons

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Articles

Long-term effect of total fundoplication on the myotomized esophagus

Division of Thoracic Surgery, Department of Surgery, Université de Montréal, Hôtel-Dieu de Montréal, Montreal, Quebec, Canada

^_* Address reprint requests to Dr Duranceau, Department of Surgery, Hôtel-Dieu de Montreal, 3840, St-Urbain, Montreal, Que, Canada H2W 1T8.

From 1978 to 1983, 17 patients had an esophagocardiomyotomy with an added short total fundoplication as an antireflux procedure. Thirteen had achalasia and 4, diffuse esophageal spasm. All patients initially had the usual symptoms of these motor disorders. Early after the operation all became asymptomatic, but over the years of follow-up, symptoms reappeared in 14 of 17 patients, and 5 required reoperation. The distal esophageal transverse diameter showed progressive dilatation from 3.9 cm preoperatively to more than 6 cm after 10 years of evolution. Over the same period, deterioration in the esophageal emptying capacity caused esophageal stasis to increase from 32% to 75%. Manometric changes were significant after the operation: resting pressures in the esophageal body decreased from 10.5 to 4.4 mm Hg (p < 0.001) proximally and from 12.2 to 4.6 mm Hg distally (p < 0.001). Peak contraction pressures became significantly weaker: 38 to 30 mm Hg in the proximal esophagus (p < 0.001) and from 49.2 to 28.1 in the distal esophagus (p < 0.001). Tertiary contractions were unchanged distally, but peristalsis reappeared in more than 30% of all swallows in the proximal half of the esophageal body. The resting pressure gradient in the lower esophageal sphincter area was reduced from 25.5 to 7.4 mm Hg by the operation. This gradient remained stable over 10 years of follow-up. No significant acid exposure was documented in 8 patients undergoing 24-hour pH recordings after their operation. Endoscopy revealed dilatation and retention without evidence of reflux esophagitis damage. Total fundoplication when associated with esophageal myotomy results in improved symptoms in the early postoperative phase. Aperistalsis remains unchanged, and the lower esophageal sphincter gradient remains low. Over time a progressive increase in esophageal retention occurs with poor emptying and recurrence of symptoms. Despite good reflux control, total fundoplication is not appropriate to the myotomized esophagus over time.

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