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Arjan B. Te Pas - One of the best experts on this subject based on the ideXlab platform.

  • Influence of the hand squeeze and Mask distensibility on tidal volume measurements during neonatal Mask Ventilation.
    Neonatology, 2013
    Co-Authors: Jeroen J Van Vonderen, Kim Schilleman, Frans J. Walther, Rita Kamar, Stuart B. Hooper, Arjan B. Te Pas
    Abstract:

    Background: During Mask Ventilation, the Mask volume can vary as it is pressurized or when it is squeezed. The change in volume of the Mask may affect tidal volum

  • Leak and obstruction with Mask Ventilation during simulated neonatal resuscitation
    Archives of disease in childhood. Fetal and neonatal edition, 2010
    Co-Authors: Kim Schilleman, Ruben S G M Witlox, Enrico Lopriore, Colin J Morley, Frans J. Walther, Arjan B. Te Pas
    Abstract:

    Objectives To evaluate Mask technique during simulated neonatal resuscitation and test the effectiveness of training in optimal Mask handling. Study design Seventy participants(consultants, registrars and nurses) from neonatal units were asked to administer positive pressure Ventilation at a flow of 8 l/min and a frequency of 40–60/min to a modified leak free, term newborn manikin (lung compliance 0.5 ml/cm H 2 O) using a Neopuff T-piece device. Recordings were made (1) before training, (2) after training in Mask handling and (3) 3 weeks later. Leak was calculated. Obstruction (tidal volume Results For the 70 participants, median (IQR) leak was 71% (32–95%) before training, 10% (5–37%) directly after training and 15% (4–33%) 3 weeks later (p Conclusions Mask Ventilation during simulated neonatal resuscitation was often hampered by large leaks at the face Mask. Moderate airway obstruction occurred frequently when effort was taken to minimise leak. Training in Mask Ventilation reduced Mask leak but should also focus on preventing airway obstruction.

F Muntoni - One of the best experts on this subject based on the ideXlab platform.

  • outcome of paediatric domiciliary Mask Ventilation in neuromuscular and skeletal disease
    European Respiratory Journal, 2000
    Co-Authors: Anita K Simonds, S Ward, S Heather, Andrew Bush, F Muntoni
    Abstract:

    Noninvasive positive pressure Ventilation delivered by nasal Mask or faceMask has been used widely in the last decade to manage chronic ventilatory failure in adults with neuromuscular and chest wall disease. However, it has been thought that paediatric patients would not be able to tolerate Masks, and previous anecdotal reports on the paediatric application of Mask Ventilation have not assessed the effects on nocturnal and arterial blood gas control. Domiciliary Mask Ventilation has been used in 40 children with ventilatory insufficiency due to congenital neuromuscular and skeletal disease aged 9 months-16 yrs. Eighteen patients had symptomatic nocturnal hypoVentilation, 17 had diurnal ventilatory failure, three were referred for weaning and two had frequent chest infections associated with sleep-disordered breathing. Thirty eight of the 40 patients tolerated Mask ventilatory support long-term. Diurnal mean+/-SD oxygen tension in arterial blood (Pa,O2) increased from 8.5+/-1.8-10.9+/-1.7 kPa (p<0.001) and mean carbon dioxide tension in arterial blood (Pa,CO2) fell from 7.0+/-1.6-5.9+/-0.8 kPa (p=0.01) following initiation of ventilatory support. Mean and minimum nocturnal Pa,O2 and peak transcutaneous carbon dioxide tension (Ptc,CO2) (n=21) improved significantly. Mask Ventilation can be used successfully in young children and reverses ventilatory insufficiency due to congenital neuromuscular and skeletal disease.

  • Outcome of paediatric domiciliary Mask Ventilation in neuromuscular and skeletal disease
    The European respiratory journal, 2000
    Co-Authors: Anita K Simonds, S Ward, S Heather, Andrew Bush, F Muntoni
    Abstract:

    Noninvasive positive pressure Ventilation delivered by nasal Mask or faceMask has been used widely in the last decade to manage chronic ventilatory failure in adults with neuromuscular and chest wall disease. However, it has been thought that paediatric patients would not be able to tolerate Masks, and previous anecdotal reports on the paediatric application of Mask Ventilation have not assessed the effects on nocturnal and arterial blood gas control. Domiciliary Mask Ventilation has been used in 40 children with ventilatory insufficiency due to congenital neuromuscular and skeletal disease aged 9 months-16 yrs. Eighteen patients had symptomatic nocturnal hypoVentilation, 17 had diurnal ventilatory failure, three were referred for weaning and two had frequent chest infections associated with sleep-disordered breathing. Thirty eight of the 40 patients tolerated Mask ventilatory support long-term. Diurnal mean+/-SD oxygen tension in arterial blood (Pa,O2) increased from 8.5+/-1.8-10.9+/-1.7 kPa (p

Shiroh Isono - One of the best experts on this subject based on the ideXlab platform.

  • Mask Ventilation during induction of general anesthesia influences of obstructive sleep apnea
    Anesthesiology, 2017
    Co-Authors: Shin Sato, Makoto Hasegawa, Megumi Okuyama, Junko Okazaki, Yuji Kitamura, Yumi Sato, Teruhiko Ishikawa, Yasunori Sato, Shiroh Isono
    Abstract:

    Background Depending on upper airway patency during anesthesia induction, tidal volume achieved by Mask Ventilation may vary. In 80 adult patients undergoing general anesthesia, the authors tested a hypothesis that tidal volume during Mask Ventilation is smaller in patients with sleep-disordered breathing priorly defined as apnea hypopnea index greater than 5 per hour. Methods One-hand Mask Ventilation with a constant ventilator setting (pressure-controlled Ventilation) was started 20 s after injection of rocuronium and maintained for 1 min during anesthesia induction. Mask Ventilation efficiency was assessed by the breath number needed to initially exceed 5 ml/kg ideal body weight of expiratory tidal volume (primary outcome) and tidal volumes (secondary outcomes) during initial 15 breaths (UMIN000012494). Results Tidal volume progressively increased by more than 70% in 1 min and did not differ between sleep-disordered breathing (n = 42) and non-sleep-disordered breathing (n = 38) patients. In post hoc subgroup analyses, the primary outcome breath number (mean [95% CI], 5.7 [4.1 to 7.3] vs. 1.7 [0.2 to 3.2] breath; P = 0.001) and mean tidal volume (6.5 [4.6 to 8.3] vs. 9.6 [7.7 to 11.4] ml/kg ideal body weight; P = 0.032) were significantly smaller in 20 sleep-disordered breathing patients with higher apnea hypopnea index (median [25th to 75th percentile]: 21.7 [17.6 to 31] per hour) than in 20 non-sleep disordered breathing subjects with lower apnea hypopnea index (1.0 [0.3 to 1.5] per hour). Obesity and occurrence of expiratory flow limitation during one-hand Mask Ventilation independently explained the reduction of efficiency of Mask Ventilation, while the use of two hands effectively normalized inefficient Mask Ventilation during one-hand Mask Ventilation. Conclusions One-hand Mask Ventilation is difficult in patients with obesity and severe sleep-disordered breathing particularly when expiratory flow limitation occurs during Mask Ventilation.

  • how can we improve Mask Ventilation in patients with obstructive sleep apnea during anesthesia induction
    Journal of Anesthesia, 2013
    Co-Authors: Yumi Sato, Teruhiko Ishikawa, Aya Ikeda, Shiroh Isono
    Abstract:

    Recent evidence suggests the possible development of difficult Mask Ventilation in patients with obstructive sleep apnea. Based on our current understanding of the pathophysiology of pharyngeal airway obstruction in obstructive sleep apnea patients, we conclude that anesthesiologists can decrease respiratory complications during anesthesia induction by conducting careful pre-induction preparations, including body and head positioning and sufficient preoxygenation, and by using the two-hand Mask Ventilation technique with effective airway maneuvers and appropriate ventilator settings while continuously assessing Ventilation status with capnography.

  • how can we improve Mask Ventilation in patients with obstructive sleep apnea during anesthesia induction
    Journal of Anesthesia, 2013
    Co-Authors: Yumi Sato, Teruhiko Ishikawa, Aya Ikeda, Shiroh Isono
    Abstract:

    Open image in new window S. Isono Recent evidence suggests the possible development of difficult Mask Ventilation in patients with obstructive sleep apnea. Based on our current understanding of the pathophysiology of pharyngeal airway obstruction in obstructive sleep apnea patients, we conclude that anesthesiologists can decrease respiratory complications during anesthesia induction by conducting careful pre-induction preparations, including body and head positioning and sufficient preoxygenation, and by using the two-hand Mask Ventilation technique with effective airway maneuvers and appropriate ventilator settings while continuously assessing Ventilation status with capnography.

Anita K Simonds - One of the best experts on this subject based on the ideXlab platform.

  • outcome of paediatric domiciliary Mask Ventilation in neuromuscular and skeletal disease
    European Respiratory Journal, 2000
    Co-Authors: Anita K Simonds, S Ward, S Heather, Andrew Bush, F Muntoni
    Abstract:

    Noninvasive positive pressure Ventilation delivered by nasal Mask or faceMask has been used widely in the last decade to manage chronic ventilatory failure in adults with neuromuscular and chest wall disease. However, it has been thought that paediatric patients would not be able to tolerate Masks, and previous anecdotal reports on the paediatric application of Mask Ventilation have not assessed the effects on nocturnal and arterial blood gas control. Domiciliary Mask Ventilation has been used in 40 children with ventilatory insufficiency due to congenital neuromuscular and skeletal disease aged 9 months-16 yrs. Eighteen patients had symptomatic nocturnal hypoVentilation, 17 had diurnal ventilatory failure, three were referred for weaning and two had frequent chest infections associated with sleep-disordered breathing. Thirty eight of the 40 patients tolerated Mask ventilatory support long-term. Diurnal mean+/-SD oxygen tension in arterial blood (Pa,O2) increased from 8.5+/-1.8-10.9+/-1.7 kPa (p<0.001) and mean carbon dioxide tension in arterial blood (Pa,CO2) fell from 7.0+/-1.6-5.9+/-0.8 kPa (p=0.01) following initiation of ventilatory support. Mean and minimum nocturnal Pa,O2 and peak transcutaneous carbon dioxide tension (Ptc,CO2) (n=21) improved significantly. Mask Ventilation can be used successfully in young children and reverses ventilatory insufficiency due to congenital neuromuscular and skeletal disease.

  • Outcome of paediatric domiciliary Mask Ventilation in neuromuscular and skeletal disease
    The European respiratory journal, 2000
    Co-Authors: Anita K Simonds, S Ward, S Heather, Andrew Bush, F Muntoni
    Abstract:

    Noninvasive positive pressure Ventilation delivered by nasal Mask or faceMask has been used widely in the last decade to manage chronic ventilatory failure in adults with neuromuscular and chest wall disease. However, it has been thought that paediatric patients would not be able to tolerate Masks, and previous anecdotal reports on the paediatric application of Mask Ventilation have not assessed the effects on nocturnal and arterial blood gas control. Domiciliary Mask Ventilation has been used in 40 children with ventilatory insufficiency due to congenital neuromuscular and skeletal disease aged 9 months-16 yrs. Eighteen patients had symptomatic nocturnal hypoVentilation, 17 had diurnal ventilatory failure, three were referred for weaning and two had frequent chest infections associated with sleep-disordered breathing. Thirty eight of the 40 patients tolerated Mask ventilatory support long-term. Diurnal mean+/-SD oxygen tension in arterial blood (Pa,O2) increased from 8.5+/-1.8-10.9+/-1.7 kPa (p

Kim Schilleman - One of the best experts on this subject based on the ideXlab platform.

  • Influence of the hand squeeze and Mask distensibility on tidal volume measurements during neonatal Mask Ventilation.
    Neonatology, 2013
    Co-Authors: Jeroen J Van Vonderen, Kim Schilleman, Frans J. Walther, Rita Kamar, Stuart B. Hooper, Arjan B. Te Pas
    Abstract:

    Background: During Mask Ventilation, the Mask volume can vary as it is pressurized or when it is squeezed. The change in volume of the Mask may affect tidal volum

  • Leak and obstruction with Mask Ventilation during simulated neonatal resuscitation
    Archives of disease in childhood. Fetal and neonatal edition, 2010
    Co-Authors: Kim Schilleman, Ruben S G M Witlox, Enrico Lopriore, Colin J Morley, Frans J. Walther, Arjan B. Te Pas
    Abstract:

    Objectives To evaluate Mask technique during simulated neonatal resuscitation and test the effectiveness of training in optimal Mask handling. Study design Seventy participants(consultants, registrars and nurses) from neonatal units were asked to administer positive pressure Ventilation at a flow of 8 l/min and a frequency of 40–60/min to a modified leak free, term newborn manikin (lung compliance 0.5 ml/cm H 2 O) using a Neopuff T-piece device. Recordings were made (1) before training, (2) after training in Mask handling and (3) 3 weeks later. Leak was calculated. Obstruction (tidal volume Results For the 70 participants, median (IQR) leak was 71% (32–95%) before training, 10% (5–37%) directly after training and 15% (4–33%) 3 weeks later (p Conclusions Mask Ventilation during simulated neonatal resuscitation was often hampered by large leaks at the face Mask. Moderate airway obstruction occurred frequently when effort was taken to minimise leak. Training in Mask Ventilation reduced Mask leak but should also focus on preventing airway obstruction.

  • 334 Efficiency of Mask Ventilation in Preterm Infants at Birth
    Pediatric Research, 2010
    Co-Authors: A.b. Te Pas, Kim Schilleman, Enrico Lopriore, Colin J Morley, Mirjam Klein, Frans J. Walther
    Abstract:

    Aim: To investigate the efficiency of Mask Ventilation in preterm infants after birth. Methods: Recordings of airway pressures and gas flow of infants 60%), low expired tidal volume (VTe) 15 ml/kg in initial sustained inflations of 3 seconds, > 10 ml/kg in subsequent inflations). Airway obstruction could only be observed leak was minimal. Results: Recordings of 26 infants (mean (SD) gestation 28.0 (1.6) weeks, birth weight 1120 (322) grams) were suitable for analysis. In 26 infants 130 sustained inflations (5 (2) per infant) were given and median (IQR) leak was 84 (40-100)% and VTe was 2.1 (0-6.7) ml/kg. In 20/26 infants 1513 subsequent inflations (75 (50) per infant) were given and leak was 56 (8-100)% and VTe 2.9 (0.3-5.8) ml/kg. The proportion of infants and percentage of inflations with significant leak, low VTe, high VTe and obstruction are shown in Table 1. Conclusion: During Mask Ventilation of preterm infants at birth tidal Ventilation is frequently low and hampered by Mask leak and obstruction. High VTe occurred occasionally.