There are findings that suggest association between extraesophageal symptoms such as cough, laryngitis and chest pain and gastroesophageal reflux disease,. However the cause - effect so far is controversial OBJECTIVE : Describe the findings in esophageal pH monitoring with impedance testing in patients with extraesophageal symptoms and suspected gastroesophageal reflux disease (GERD) in patients referred to Hospital San Ignacio de Bogotá between 2006 and 2010. METHODS AND PATIENTS We review the records of gastrointestinal physiology studies performed un our unit with multichannel intraluminal impedance-ph monitoring between 2006 and 2011, wich indication was extraesophageal symptoms and suspected GERD. Some of our patients was on treatment wiht PPI and others do not. RESULTS We found in our records 348 patients who underwent esophageal impedance - pH monitoring for extraesophageal symptoms and suspected GERD, 234 female (67%) and 114 male (33%). In 198 patients (57%) the test was performed without treatment, and 150 patients (43%) with treatment. The most common manifestation was laryngitis with 49%, followed by coughing up 38%, and chest pain with 13%. In patients where the study was done without treatment, the test was positive for acid reflux in 23% and positive for non acid reflux only in 13% of cases. In patients in whom the procedure was done with treatment, it was positive for acid reflux in 11% and positive for non-acid reflux in 38%. CONCLUSIONS :Esophageal impedance - pH monitoring is useful in determining whether GERD is present in patients with extraesophageal symptoms. It also helps to distinguish between acid reflux and non -acid reflux in this patients . Most of our patients had a negative result for both acid and non acid reflux , which may suggest a poor relation between extraesophageal symptoms and GERD detecting by impedance . ph monitoring wich can be explain because there is a large amount of procedures performed with the wrong indications.