Oxygen delivery Systems–a comparison of two devices

Fairfield, J.E.; Goroszeniuk, Teodor; Tully, A.; Adams, A. P.

doi:10.1111/j.1365-2044.1991.tb09360.x

Cited by 15 publications

(10 citation statements)

References 9 publications

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“…Modern management of the sick patient involves the administration of oxygen in supposedly known concentrations. There are a many delivery systems commercially available whose performances are documented in the literature [1–8]. This is usually reported as the actual delivery from the system [3], the resultant inspired concentration of oxygen [1, 2, 4–9], or the arterial oxygenation achieved [9].…”

Section: Factors That Influence the Fio2 Delivered To A Patient By Omentioning

confidence: 99%

“…From a physics perspective, the actual concentration of oxygen delivered is determined by the interaction between the delivery system and the patient's breathing pattern [4]. In contrast, most of the in vivo measurements that have been reported were carried out in normal subjects breathing at rest or trained to vary their tidal volumes [1–5, 7–18]. Several of these studies do point out that there are multiple factors which may compromise the performance of these devices and result in an effective F i o 2 that is less, or occasionally more, than that expected [4,7].…”

Section: Factors That Influence the Fio2 Delivered To A Patient By Omentioning

confidence: 99%

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Performance of six types of oxygen delivery devices at varying respiratory rates*

Wagstaff¹,

Soni

2007

Anaesthesia

142

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SummaryThe administration of a known concentration of oxygen is an important part of routine care of the sick patient. Many devices are currently available. The actual concentration of oxygen that can be delivered by these devices can be affected by several factors, both from the patient as well as the device itself. Measuring the F i O 2 delivered to the lungs in vivo can be both difficult and potentially uncomfortable for the subjects. We constructed a model using a resuscitation manikin, a ventilator and a set of bellows to simulate ventilation. With this model we tested a series of devices -variable performance, fixed performance and high flow -at two fixed tidal volumes. The respiratory rate was increased and its effect on the oxygen concentration assessed. Variable performance systems such as the Hudson mask deliver a significantly reduced oxygen concentration at high respiratory rates. Fixed performance systems delivering 24-40% oxygen deliver appropriate oxygen concentrations across the range of respiratory rates, whereas those delivering 60% show a reduction in performance. High flow systems show no failure of performance at increased respiratory rates.

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Section: Factors That Influence the Fio2 Delivered To A Patient By Omentioning

confidence: 99%

Section: Factors That Influence the Fio2 Delivered To A Patient By Omentioning

confidence: 99%

Performance of six types of oxygen delivery devices at varying respiratory rates*

Wagstaff¹,

Soni

2007

Anaesthesia

142

View full text Add to dashboard Cite

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“…It has been reported that there are no significant differences in partial pressure of arterial carbon dioxide (PaCO 2 ) or oxygen saturation measured by pulse oximetry (SpO 2 ) when using various devices. 2,3 Such devices deliver a variable inspired oxygen concentration (FIO 2 ), especially in patients with chronic obstructive pulmonary disease or during the postoperative nocturnal period. 4 Not only do some patients find face masks uncomfortable or claustrophobic, but these masks also hinder speech.…”

Section: Méthodementioning

confidence: 99%

Design of oxygen delivery systems influences both effectiveness and comfort in adult volunteers

Sasaki

Yamakage

Iwasaki

et al. 2003

Can J Anesth/J Can Anesth

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P Pu ur rp po os se e: : The aim of this investigation was to compare the efficiency of four oxygen delivery systems in healthy volunteers. M Me et th ho od ds s: :The subjects received oxygen at flow rates of 3.0 and 5.0 L·min -1 via a face mask, nasal cannulae, and two kinds of new open-and microphone-type oxygen delivery systems (OxyArm™ and Mike Cannula) in a random sequence, and values of partial arterial pressures of oxygen (PaO 2 ) were measured. The comfort of these devices was also evaluated.

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“…Fairfield et al concluded that both devices (mask and nasal catheter) delivered acceptable oxygen concentrations 7 . Bambridge found nasal catheters to be inadequate for patients requiring more than just routine oxygen therapy (above 50%) and, in their audit, the nasal catheter was unable to maintain adequate saturation levels 8 .…”

Section: Review Of the Researchmentioning

confidence: 99%

Are nasal spectacles adequate for supplementary oxygen in patients after anaesthesia?

Bolton

Russell

2001

Int J of Nursing Practice

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Two methods of oxygen delivery were compared when used postoperatively after a general anaesthetic had been administered. There were 255 patients randomly allocated to receive oxygen via nasal spectacles or a Hudson face mask in the initial postoperative period. Oxygen saturation was monitored using pulse oximetry. Seven percent of patients who received the Hudson mask and 14% of patients who received nasal spectacles desaturated below 94% (P = 0.10). Age, weight or American Society of Anesthesiologists (ASA) status did not predict oxygen desaturation; however, desaturation occurred more frequently in male patients with nasal spectacles undergoing abdominal surgery. If male patients who had abdominal surgery with muscle relaxants are excluded from the nasal spectacle group, the desaturation incidences for spectacles and masks are similar (10% versus 7%, P = 0.38). Using nasal spectacles for all postoperative oxygen therapy in selected patients is therefore feasible and could provide substantial cost-saving.

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Oxygen delivery Systems–a comparison of two devices

Cited by 15 publications

References 9 publications

Performance of six types of oxygen delivery devices at varying respiratory rates*

Performance of six types of oxygen delivery devices at varying respiratory rates*

Design of oxygen delivery systems influences both effectiveness and comfort in adult volunteers

Are nasal spectacles adequate for supplementary oxygen in patients after anaesthesia?

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