Search results for "Oropharynx"

showing 3 items of 13 documents

Gastric insufflation pressure, air leakage and respiratory mechanics in the use of the laryngeal mask airway (LMA) in children.

2004

Summary Background : The objective of the present study was to evaluate the prelaryngeal position of the laryngeal mask airway (LMATM) in children, and to determine the influence of mask positioning on gastric insufflation and oropharyngeal air leakage. Methods : A total of 100 children, 3–11 years old, scheduled for surgical procedures in the supine position under general anaesthesia were studied. After clinically satisfactory LMA placement, tidal volumes were increased stepwise until air entered the stomach, airway pressure exceeded 30 cmH2O, or air leakage from the mask seal prevented further increases in tidal volume. LMA position in relation to the laryngeal entrance was verified using…

Larynxmedicine.medical_specialtySupine positionOropharynxRespiratory physiologyMascaraLaryngeal MasksIntermittent Positive-Pressure VentilationPositive-Pressure RespirationLaryngeal mask airwaymedicineTidal VolumeHumansGeneral anaesthesiaChildTidal volumebusiness.industryAirStomachSurgeryAnesthesiology and Pain Medicinemedicine.anatomical_structureBronchoscopesAnesthesiaChild PreschoolPediatrics Perinatology and Child HealthRespiratory MechanicsEquipment FailureAirwaybusinessPaediatric anaesthesia
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Two- and three-dimensional evaluation of the upper airway after bimaxillary correction of Class III malocclusion

2009

Objective The aim the study was to evaluate area and volumetric changes in the upper airway after bimaxillary correction of Class III malocclusion by the means of computer tomography (CT), and to compare these to the changes in linear measurements from lateral cephalograms. Study design This was a prospective clinical trial. Lateral cephalograms and CT scans of 10 Class III patients were evaluated 1 week before and 6 months after surgery. Wilcoxon matched pairs signed ranks test was used to determine the differences in measurements pre- and postoperatively. Spearman's rank correlation was used to test the association between the CT and cephalometric measurements. Results CT measurements: Th…

MaleAdolescentCephalometryRadiographyStatistics as TopicOropharynxMandibleStatistics NonparametricYoung AdultOrthognathic Surgical ProceduresImaging Three-DimensionalTongueMaxillaRadiography DentalmedicineHumansOsteotomy Le FortProspective StudiesGeneral DentistryRank correlationOrthodonticsOrthognathic Surgical Proceduresbusiness.industryCraniometrymedicine.diseaseHypopharynxMalocclusion Angle Class IIITreatment Outcomemedicine.anatomical_structureOtorhinolaryngologyMaxillaFemaleSurgeryPalate SoftOral SurgeryMalocclusionTomography X-Ray ComputedbusinessAirwayOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
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Effects of mandibular setback surgery on upper airway dimensions and their influence on obstructive sleep apnoea - a systematic review.

2015

Abstract Background Mandibular setback used to be the traditional treatment of choice for correcting mandibular prognathism. Nowadays, bimaxillary surgery is preferred. Several authors have asserted that mandibular setback causes a relative narrowing of the upper airway (UA) that could trigger obstructive sleep apnoea (OSA); however, its potential role in OSA development is still much debated. Another controversial subject is whether changes in airway space caused by the procedure are permanent. Objectives To ascertain the consequences for UA size and shape of mandibular setback surgery in comparison with bimaxillary surgery (maxillary advancement with Le Fort I and mandibular setback), and…

Mandibular setback surgerymedicine.medical_treatmentOrthognathic surgeryMEDLINEMandibular OsteotomyDentistryOropharynxstomatognathic systemNasopharynxmedicineMaxillaHumansOsteotomy Le FortOximetryOrthodonticsSleep Apnea Obstructivebusiness.industryClinical trialHypopharynxSystematic reviewMandibular prognathismOtorhinolaryngologyCohortPharynxSurgeryOral SurgerybusinessAirwayJournal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
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