Results 201 to 210 of about 17,202 (220)

The Changes in Pulse Pressure Variation or Stroke Volume Variation After a “Tidal Volume Challenge” Reliably Predict Fluid Responsiveness During Low Tidal Volume Ventilation

Critical Care Medicine, 2017
Objectives: Stroke volume variation and pulse pressure variation do not reliably predict fluid responsiveness during low tidal volume ventilation. We hypothesized that with transient increase in tidal volume from 6 to 8 mL/kg predicted body weight, that is, “tidal volume challenge,” the changes in pulse pressure variation and ...
Sheila Nainan Myatra, Xavier Monnet, Atul P Kulkarni   +2 more
exaly   +3 more sources

Fixed ventilation during tidal volume breathing bronchial challenge may improve repeatability

Allergy, 1987
Tidal breathing during bronchial challenge shows both between‐ and within‐subject variation. A challenge protocol permitting controlled ventilation was designed in order to improve repeatability of the method. Twenty‐five patients were challenged twice with an interval of 2 h.
F, Madsen, L, Frølund, N H, Nielsen, U G, Svendsen, B, Weeke   +4 more
openaire   +2 more sources

Changes in Respiratory Variation of Velocity-Time Integral and Peak Velocity of Left Ventricular Outflow Tract After Tidal Volume Challenge Predict Fluid Responsiveness in Elderly Patients With Low Tidal Volume Ventilation: A Prospective Observational Study

Journal of Cardiothoracic and Vascular Anesthesia
We hypothesized that changes in respiratory variation of velocity-time integral (ΔVTI) and peak velocity (ΔVpeak) of left ventricular outflow tract after tidal volume challenge (TVC) better predict fluid responsiveness in elderly patients with low tidal volume ventilation.A prospective observational study.A tertiary teaching hospital.Ninety-six ...
Fu-Hai Ji, Ke Peng
exaly   +3 more sources

Histamine challenge test assessed by the ratio of diaphragm EMG recorded from surface electrodes to tidal volume

Clinical Problems, 2018
The magnitude of tidal volume (VT) depends on neural respiratory drive overcoming respiratory resistance. We hypothesized that the ratio of EMGdi, an index of neural drive, to VT could detect histamine induced changes in lower airway resistance given the assumption that respiratory resistance (except for the lower airway resistance) is unaffected by ...
Ying-Mei Luo, Bai-Ting He, Ying-Xin Wu, Joerg Steier, Caroline Jolley, John Moxham, Michael I Polkey, Yuanming Luo   +7 more
openaire   +1 more source

Bronchial challenge: ventilation during 'tidal volume breathing' inhalation is not constant.

Bulletin europeen de physiopathologie respiratoire, 1987
Standardization of bronchial challenge (BC) in order to improve repeatability of both non-specific and specific challenges is desirable. In the tidal volume breathing BC (tBC), the patient inhales bronchoconstrictor during the entire inspiratory phase of the tidal volume breathing.
F, Madsen, L, Frølund, N H, Nielsen, U G, Svendsen, B, Weeke   +4 more
openaire   +1 more source

Predicting Fluid Responsiveness Using Change in Pulse Pressure Variation and Stroke Volume Variation after Tidal Volume Challenge in Postoperative Patients Receiving Lung Protective Ventilation

Journal of the Medical Association of Thailand, 2020
Background: Lung protective ventilation with low tidal volume (VT) is beneficial in patients with intermediate to high risk of post-operative pulmonary complications. However, during low VT ventilation, pulse pressure variation (PPV) and stroke volume variation (SVV) do not predict fluid responsiveness.
openaire   +1 more source

The Use of Tidal Volume Challenge Test in Critically Ill Patients: Caution Needed

Critical Care Medicine, 2017
Yang, Liu, Yu-Ming, Li
openaire   +2 more sources

Histamine challenge and bronchodilator tests assessed by the ratio of diaphragm EMG to tidal volume

5.2 Monitoring Airway Disease, 2015
Bai-Ting He, Ning Zhang, Lian Zhou, Jing Wang, John Moxham, Michael I. Polkey, Yuan-Ming Luo   +6 more
openaire   +1 more source

METHACHOLINE CHALLENGE: COMPARISON OF DOUBLING AND QUADRUPLING METHACHOLINE DOSE REGIMES USING THE TIDAL VOLUME METHOD

Chest, 2009
Gregory E. Peters, Beth E. Davis, Donald W. Cockcroft   +2 more
openaire   +1 more source

Artificial Intelligence in Cancer Imaging: Clinical Challenges and Applications

Ca-A Cancer Journal for Clinicians, 2019
Maryellen Lissak Giger, Raymond Y Huang, Clare M C Tempany-Afdhal   +2 more
exaly