Hemodynamic Effects of Nasal and Face Mask Continuous Positive Airway Pressure

Montner, P.; Greene, Ernest R.; Murata, Glen H.; Stark, D.; TIMMS, MARK; Chick, Thomas W.

doi:10.1097/00132586-199504000-00021

Cited by 10 publications

(14 citation statements)

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“…Adverse cardiovascular effects have been reported with the use of CPAP [9]. We did not find any significant cardiovascular depressant effects of CPAP in our groups with respect to systolic and diastolic blood pressure.…”

Section: Discussioncontrasting

confidence: 42%

Effectiveness of continuous positive airway pressure to enhance pre‐oxygenation in morbidly obese women

Cressey¹,

Berthoud

Reilly

2001

Anaesthesia

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Morbid obesity is associated with a reduction in time to desaturate during apnoea following standard pre-oxygenation and induction of anaesthesia. We have compared the effects of using 7.5 cmH2O of continuous positive airway pressure (CPAP) for pre-oxygenation with a standard technique using a Mapleson A breathing system, in 20 morbidly obese women. In a prospective, open, randomised trial, we measured the time taken to desaturate to 90% from time of giving a succinylcholine bolus as part of a rapid induction of anaesthesia. All patients received 3 min pre-oxygenation prior to induction. Tracheal intubation was confirmed and all patients kept apnoeic until oxygen saturation decreased to 90%. No statistically significant difference in mean time to desaturate to 90% could be demonstrated in the CPAP group compared to the Mapleson A group (240 s and 203 s, respectively). A brief period of lower mean heart rate in the CPAP group was the only statistically significant difference in cardiovascular parameters. There was no significant difference in the volume of gastric gas after induction between groups.

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Section: Discussioncontrasting

confidence: 42%

Effectiveness of continuous positive airway pressure to enhance pre‐oxygenation in morbidly obese women

Cressey¹,

Berthoud

Reilly

2001

Anaesthesia

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“…All subjects studied exhibited normal pulmonary haemodynamics. Montner et al studied the haemodynamic effects of nasal CPAP in six normal subjects and demonstrated a dose‐dependent decrease in SV and CO with nasal CPAP 14 . Our results are consistent with theirs, even though they used echocardiography.…”

Section: Discussionsupporting

confidence: 91%

Effects of nasal continuous positive airway pressure on pulmonary haemodynamics and tissue oxygenation in patients with obstructive sleep apnoea

et al. 1999

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We investigated the acute effects of nasal continuous positive airway pressure (CPAP) on pulmonary haemodynamics and tissue oxygenation in eight men with obstructive sleep apnoea (OSA) by means of right heart catheterization. They were tested at four dosage levels of nasal CPAP: 0, 5, 10, and 15 cmH2O. Nasal CPAP significantly reduced the cardiac index at the 10 and 15 cmH2O doses. The mean pulmonary artery pressure was significantly elevated with 10 and 15 cmH2O, and pulmonary capillary wedge pressure was significantly increased with 15 cmH2O of nasal CPAP. Pulmonary vascular resistance was significantly increased with 10 cmH2O of nasal CPAP. The 5 cmH2O dose of nasal CPAP did not affect significantly these parameters. Mixed venous oxygen tension was unchanged at any pressure. We conclude that tissue oxygenation was maintained in the OSA patients during administration of nasal CPAP, even though a high CPAP clearly affected pulmonary haemodynamics.

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“…The application of CPAP may affect hemodynamics through several mechanisms: decreased venous return, increased right ventricular afterload, decreased ventricular compliance, and decreased ventricular contractility. 34 Overall, the hemodynamic consequences of the application of CPAP depend on prior ventricular loading conditions and ventricular function. 34 The cardiovascular variables measured in this study (HR and blood pressure) were not different in CPAP than in no CPAP.…”

Section: Discussionmentioning

confidence: 99%

“…34 Overall, the hemodynamic consequences of the application of CPAP depend on prior ventricular loading conditions and ventricular function. 34 The cardiovascular variables measured in this study (HR and blood pressure) were not different in CPAP than in no CPAP. However, future studies using more invasive cardiovascular monitoring need to measure cardiac output in order to evaluate the effect of CPAP on oxygen delivery, before it can be used in compromised animals.…”

Section: Discussionmentioning

confidence: 99%

Noninvasive continuous positive airway pressure delivered using a pediatric helmet in dogs recovering from general anesthesia

Staffieri¹,

Crovace²,

Monte³

et al. 2014

J Vet Emergen Crit Care

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Hemodynamic Effects of Nasal and Face Mask Continuous Positive Airway Pressure

Cited by 10 publications

References 0 publications

Effectiveness of continuous positive airway pressure to enhance pre‐oxygenation in morbidly obese women

Effectiveness of continuous positive airway pressure to enhance pre‐oxygenation in morbidly obese women

Effects of nasal continuous positive airway pressure on pulmonary haemodynamics and tissue oxygenation in patients with obstructive sleep apnoea

Noninvasive continuous positive airway pressure delivered using a pediatric helmet in dogs recovering from general anesthesia

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