Search results for "Esophageal pressure"

showing 6 items of 6 documents

Assessment of various factors influencing esophageal pressure measurement

1980

Die intraluminale Manometrie wird zunehmend fur die Diagnose osophagealer Motilitatsstorungen eingesetzt. Die klinische Validitat der Methode hangt jedoch entscheidend von einer exakten Standardisierung der Methodik, des Untersuchungsablaufes und der Kenntnis der Einflusgrosen auf das Mesergebnis ab. Im ersten Teil dieser Studie wurde der Einflus verschiedener methodischer Faktoren auf das Ergebnis der Osophagusdruckmessung in Modellversuchen, bei 44 gesunden Probanden und bei 74 Patienten mit axialer Hiatushernie mit einem elektromagnetischen Mikrotransducer untersucht. Signifikante Unterschiede der Meswerte fanden sich in Abhangigkeit von der Sensorposition im oberen Osophagussphinkter (p…

AdultHernia DiaphragmaticMaleGynecologymedicine.medical_specialtyManometrybusiness.industryPostureGeneral MedicineMiddle AgedEsophagusHernia HiatalDrug DiscoveryPressuremedicineHumansMolecular MedicineEsophageal pressureFemalePeristalsisbusinessGenetics (clinical)AgedKlinische Wochenschrift
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Assessment of various factors influencing esophageal pressure measurement. II. Significance of physiological factors in intraluminal manometry.

1980

In the second part of this study the effect of age, sex, body size, body weight and timing of the manometric examination (morning vs. noon) on esophageal pressure measurement was investigated in a total of 119 healthy subjects, using an electromagnetic microtransducer. Additionally intraindividual variation of pressures was studied over a period of 6 months. Of these parameters only age influenced upper esophageal sphincter (UES) pressure significantly: The mean UES pressure of younger subjects (20-49 years) was significantly higher (144.4 +/- 8.6 mmHg) compared to that of older subjects (50-80 years) where a mean pressure of 103.4 +/- 7.2 mmHg was recorded (p less than 0.0005). Intraindivi…

AdultMalemedicine.medical_specialtyManometryNormal valuesBody weightEsophagusSex FactorsReference ValuesInternal medicineDrug DiscoverymedicineHumansCircadian rhythmEsophagusGenetics (clinical)MorningPeristalsisAgedbusiness.industryBody WeightAge FactorsGeneral MedicineMiddle AgedCircadian Rhythmmedicine.anatomical_structureCardiologyEsophageal sphincterMolecular MedicineEsophageal pressureFemalePeristalsisbusinessKlinische Wochenschrift
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Inspiratory Effort and Respiratory Mechanics in Patients with Acute Exacerbation of Idiopathic Pulmonary fibrosis: A Preliminary Matched Control Stud…

2022

Background: Patients with acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) may experience severe acute respiratory failure, even requiring ventilatory assistance. Physiological data on lung mechanics during these events are lacking. Methods: Patients with AE-IPF admitted to Respiratory Intensive Care Unit to receive non-invasive ventilation (NIV) were retrospectively analyzed. Esophageal pressure swing (ΔPes) and respiratory mechanics before and after 2 hours of NIV were collected as primary outcome. The correlation between positive end-expiratory pressure (PEEP) levels and changes of in dynamic compliance (dynCRS) and PaO2/FiO2 ratio was assessed. Further, an exploratory compar…

Pulmonary and Respiratory MedicineAcute exacerbation of idiopathic pulmonary fibrosiEsophageal pressure swingEsophageal manometryARDSNon-invasive mechanical ventilationInspiratory effortRespiratory mechanics.Acute respiratory failureDynamic transpulmonary pressurePulmonology
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Accuracy of Nasal Pressure Swing to Predict Failure of High-Flow Nasal Oxygen in Patients with Acute Hypoxemic Respiratory Failure

2023

In a real-life cohort of patients with AHRF undergoing HFNO, ΔPnose showed excellent accuracy in predicting early failure, similar of that displayed by ROX. Giving that the decision to upgrade to NIV or MV was based on clinical variables, the high accuracy of ROX in predicting failure of HFNO is not surprising. The similar accuracy of ΔPnose (the only measurement that remained blinded to our clinical decision), strengthened the association with outcome, avoiding incorporation bias.

Pulmonary and Respiratory Medicineself-inflicted lung injuryacute respiratory failurenon-invasive mechanical ventilationhigh flow nasal cannulaesophageal pressure swingshigh flow nasal cannulaacute respiratory failure high flow nasal cannula non-invasive mechanical ventilation esophageal pressure swings nasal pressure swings respiratory monitoring inspiratory effort self-inflicted lung injurynasal pressure swingsCritical Care and Intensive Care MedicineAcute respiratory failurerespiratory monitoringinspiratory effort
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Nasal pressure swings as the measure of inspiratory effort in spontaneously breathing patients with de novo acute respiratory failure.

2022

Abstract Background Excessive inspiratory effort could translate into self-inflicted lung injury, thus worsening clinical outcomes of spontaneously breathing patients with acute respiratory failure (ARF). Although esophageal manometry is a reliable method to estimate the magnitude of inspiratory effort, procedural issues significantly limit its use in daily clinical practice. The aim of this study is to describe the correlation between esophageal pressure swings (ΔPes) and nasal (ΔPnos) as a potential measure of inspiratory effort in spontaneously breathing patients with de novo ARF. Methods From January 1, 2021, to September 1, 2021, 61 consecutive patients with ARF (83.6% related to COVID…

Self-inflicted lung injuryCritical Care and Intensive Care MedicineAcute respiratory failureself-inflicted lung injuryNon-invasive Mechanical ventilationesophageal pressure swingsacute respiratory failure non-invasive mechanical ventilation esophageal pressure swings nasal pressure swings endotracheal intubation COVID-19 respiratory monitoring inspiratory effort self-inflicted lung injuryHumansInspiratory effortendotracheal intubationEsophageal pressure swingsAcute respiratory failure Non-invasive Mechanical ventilation Esophageal pressure swings Nasal pressure swings Endotracheal intubation COVID-19 Respiratory monitoring Inspiratory effort Self-inflicted lung injuryRespiratory Distress Syndromeacute respiratory failurenon-invasive mechanical ventilationNoninvasive VentilationRespiratory monitoringCOVID-19Endotracheal intubationRespiration ArtificialAcute respiratory failure; COVID-19; Endotracheal intubation; Esophageal pressure swings; Inspiratory effort; Nasal pressure swings; Non-invasive Mechanical ventilation; Respiratory monitoring; Self-inflicted lung injuryNasal pressure swingsnasal pressure swingsrespiratory monitoringRespiratory Insufficiencyinspiratory effortCritical care (London, England)
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Systematic analysis of esophageal pressure topography in high-resolution manometry of 68 normal volunteers

2013

Summary The introduction of high-resolution manometry (HRM) has been a significant advance in esophageal diagnostics. Normative values however are currently based upon a single set of published reference values, and multiple new metrics have been added over the past several years. Our goal was to provide a second set of ‘normal-values’ and to include all current metrics suggested by the 2012 Chicago classification. Sixty-eight subjects without foregut symptoms or previous surgery (median age 25.5 years, ranging from 20–58 years, 53% female) underwent esophageal motility assessment via an established standardized protocol. Normative thresholds were calculated for esophago-gastric junction (E…

medicine.medical_specialtyReproducibilitybusiness.industryGastroenterologyEsophageal bodyGeneral MedicineAnatomyControl subjectsNormal volunteersInternal medicineReference valuesmedicineCardiologyEsophageal pressurebusinessHigh resolution manometryPeristalsisDiseases of the Esophagus
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