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LES
(redirected from lower esophageal sphincter)

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.
AcronymDefinition
LESLesbian
LESLower East Side (Manhattan)
LESLarge Eddy Simulation
LESLeave and Earnings Statement
LESLicensing Executives Society (USA & Canada)
LESLower Esophageal Sphincter
LESLaser Eye Surgery
LESLupus Eritematoso Sistemico (Italian)
LESLaw Enforcement Sources
LESLiving Earth Simulator (research project)
LESLAN Emulation Server (ATMF)
LESLake Effect Snow
LESLine Errored Seconds
LESLand Earth Station (INMARSAT)
LESLogistics Execution System
LESLaunch Escape System
LESLocally Engaged Staff
LESLaw Enforcement Sensitive (security classification)
LESLinear Expenditure System
LESLocally Employed Staff
LESLambert-Eaton Syndrome
LESLeading Edge Services
LESLuxembourg Employment Study
LESLincoln Experimental Satellite
LESLoop Emulation Service
LESLAN Extension Service
LESLocally-Enhanced Sampling
LESLakeshore Engineering Services (Detroit, MI)
LESLearning and Evaluation Situation (psychology)
LESWaste Management Laboratory
LESLow Energy System
LESLaidlaw Environmental Services, Inc
LESLocal Education Service
LESLocal Engineering Specification
LESLaunch Environment Simulator
LESLife Enhancement Skills (UK FE students)
LESLocal Excitatory State
LESLaser Evaluator System
LESLaboratorio de Energie Solar
LESLaunch Effort Simulator
LESLaunch Enable System (Titan II)
LESLaw Enforcement Squadron
LESLarge Extension Switch
LESLawrence Experimental Station
LESLoral Electronics Systems
LESLaunch Enable Switch (US Navy)
LESLoop Expert Systems (Loop Expert Technologies)
LESLoaded Equipment Section
LESLocal Exported Schema
LESLaser and Enterprise Business Solutions (Hewlett-Packard)
LESLiquid Effluent Services (Office of Scientific and Technical Information; US Department of Energy)
LESLutheran Elementary School (various locations)
LESLower Eastern Shore (region)


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A transnasal esophageal pH catheter with a sensor placed 5 cm above the lower esophageal sphincter recorded reflux events and the acid clearance time for each event, while polysomnography recorded reflux-associated arousals and awakenings.
When the lower esophageal sphincter (LES) that separates the esophagus and the stomach fails to close properly, the stomach contents--a mix of food, enzymes, bile, and acid--backwash into the esophagus, often producing the sour taste and discomfort or outright pain of heartburn.
However there are times when the Lower Esophageal Sphincter does not operate properly, then acid from the stomach reflux into the esophagus.
 
 
Lower East Side, Manhattan
Lower Eastern Shore
Lower Eastern Shore Heritage Committee
Lower Eastern Shore Research and Education Center
Lower Eastside Service Center
Lower Echelon Command and Control
Lower Echelon Command and Control Battlefield Operating System
Lower Echelon Command, Control, Communications and Intelligence
Lower Echelon Knowledge System
Lower Echelon Reporting Surveillance Module
Lower Echelon Reporting System
Lower Economically Developed Country
Lower Egypt
Lower Egypt
Lower Elements Police
Lower Elkhorn Natural Resources District
Lower Elwha Indian Reservation
Lower Elwha Klallam Tribe
Lower Empire
Lower Empire
Lower Enclosure Assembly
Lower Epidermis
Lower Epidermis
Lower Epidermis
Lower Equipment Bay
Lower Equipment Module
Lower Erebus Hut
Lower Esophageal Ring
Lower Esophageal Ring
lower esophageal sphincter
Lower Esophageal Sphincter Length
Lower Esophageal Sphincter Pressure
Lower Esophageal Sphincter Relaxation
Lower explosive limit
Lower Exposure Action Value
Lower Exposure Limit
lower extremity
lower extremity
Lower Extremity Amputation
Lower Extremity Amputation Prevention Program
Lower Extremity Arterial Bypass
Lower Extremity Arterial Reconstruction
Lower Extremity Arterial Revascularization
Lower Extremity Deep Vein Thrombosis
Lower Extremity Edema
Lower Extremity Equipment-Related
Lower Extremity Functional Scale
Lower Extremity Lean Body Mass
Lower Extremity Mobility Disability
lower extremity monitoring
Lower Extremity Muscle Performance
Lower Extremity Reversed Vein Bypass Grafts
lower extremity suspension
Lower Extremity Venous Ultrasonography
Lower eyelid
Lower eyelid
Lower eyelid
 
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