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Updated: May 27, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
[Gastroesophageal reflux disease. Evaluation and indication for surgical treatment by esophageal phmetry]
E Enríquez Zarabozo1, C Moreno Hurtado, E Blesa Sánchez
1Hospital Materno Infantil Infanta Cristina, SES. UEX, Grupo de Investigación en Pediatría PAIDOS (CTS 019), Badajoz.
Introduction:
Oesophageal pH monitoring is considered the best procedure to assess the severity of gastroesophageal reflux disease (GERD), conditioning its treatment. The indication for surgery is becoming less common. We intend to meet this test to what extent it has influenced.
Material And Methods:
We recruit patients treated in our Centre since the introduction of pH monitoring. We compare the number of times before and after its use. We value clinical manifestations, usual pH metric values versus non-operated patients with pathological test, associated pathology.
Sample:
91 patients, 151 pH metric studies (98 preoperative). Number of interventions prior to introduction of pH monitoring: 20/year, post: 3.79/year.
Symptoms:
gastrointestinal 60.2%, respiratory 10.2%, mixed 24.5%. 495 non-operated patients, 692 pathological studies. PH metric values operated/not operated: No. reflux 116.91 +/- 125.46/101.69 +/- 83.39 (p < 0.001), No. reflux >5 minutes 8.49 +/- 8.28/4.43 +/- 4.85 (p = 0.001), longest reflux 60.21 +/- 95.93/31.16 +/- 80.09 (p < 0.001), clearance 1.27 +/- 1.44/0.86 +/- 1.05 (p = 0.04), DeMeester 52.74 +/- 56.21/29.49 +/- 23.57 (p < 0.001). 14 of 98 preoperative pH monitoring were normal. Associated pathology operated/not operated: 13.26%/ 7.47%.
Conclusions:
The pH metric control of patients with GERD and the progress of medical treatment have led to a decrease in surgical procedures. In our experience, the intensity of GERD is a valuable parameter in deciding on the surgery. We attach particular value parameters measuring oesophageal clearance and indices that integrate several of them. However, in some patients without pathological pH monitoring, we have indicated the operation. The prevalence of associated pathology in the operated makes us value them more demanding.
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