chapter  50
Functional investigations of the upper gastrointestinal tract
ByJoanne M. Patterson, Jason Powell
Pages 10

INTRODUCTION This chapter seeks to describe functional investigations of the upper digestive tract. A full investigation usually requires multidisciplinary input involving an otolaryngologist, speech and language therapist, radiologist and gastroenterologist, and a focused diagnostic examination with appropriate selection of instrumental assessment. The physiology of normal swallowing has been fully described in Chapter 48, Physiology of swallowing. The underlying aetiology for dysphagia is of anatomical, neurological, muscular or psychological origins. Early diagnosis and effective management of dysphagia reduce the incidence of pneumonia and improve quality of care and outcomes.1