The authors review the recent literature about the methodology of oesophageal pH
monitoring, which has a high sensitivity and a high specificity for assessing gastro …

Twenty-four-hour ambulatory oesophageal pH monitoring has become a major diagnostic
method for the evaluation of gastro-oesophageal reflux disease. Essential requirements for …

The validity of 24‐h oesophageal pH recording was studied in 100 consecutive patients who
had gastro‐oesophageal reflux (GER) symptoms and had indications for a 24‐h pH …

Twenty-four-hour intraesophageal pH monitoring is presently considered the most reliable
diagnostic test for gastroesophageal reflux. Prolonged esophageal pH measurements can …

Background: Twenty-four-hour pH monitoring is an investigation technique that can give
both false-positive and false-negative results, depending on patient factors such as diet and …

In 24 h oesophageal pH monitoring, pH 4 is widely but arbitrarily used as the threshold
between reflux and non‐reflux pH values. The aim of the study was to define pH thresholds …

Ambulatory 24-h pH monitoring in the distal oesophagus represents a widely accepted tool
in the diagnosis of gastro-oesophageal reflux disease. When this method was first …

A multicentre study was performed in Italy in order to establish normal values for acid gastro-
oesophageal reflux. In 73 healthy subjects 24-hour oesophageal pH measurements were …

Gastroesophageal reflux disease accounts for approximately 75% of esophageal pathology.
Accurate diagnosis can be complicated by the absence of endoscopic esophagitis in about …

In this review article we examine several facets of extended pH monitoring of the
esophagus. The different types of instrumentation and the technical difficulties of obtaining …