Negative extrathoracic pressure ventilation--evaluation of the neck seal

K Palmer; S A Spencer; Y Wickramasinghe; T Wright; M Samuels; P Rolfe

doi:10.1016/0378-3782(94)90148-1

Negative extrathoracic pressure ventilation--evaluation of the neck seal

Early Hum Dev. 1994 Apr 30;37(1):67-72. doi: 10.1016/0378-3782(94)90148-1.

Authors

K Palmer¹, S A Spencer, Y Wickramasinghe, T Wright, M Samuels, P Rolfe

Affiliation

¹ Academic Department of Paediatrics, North Staffordshire Hospital, Stoke-on-Trent, UK.

PMID: 8033789
DOI: 10.1016/0378-3782(94)90148-1

Abstract

The effect of the neck seal used in the application of negative extra-thoracic pressure ventilation was studied using near infrared spectroscopy. Changes in cerebral blood volume (CBV) were monitored during discontinuation of negative pressure and during removal of the neck seal. CBV increased by 0.17 ml 100 ml brain-1 (95% CI +0.0875 to +0.481) when negative pressure was discontinued. Removal of the neck seal had no significant effect on CBV. It is concluded that the neck seal does not cause significant jugular venous occlusion.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Blood Volume Determination
Brain / blood supply*
Humans
Infant, Newborn
Jugular Veins / physiopathology*
Respiratory Distress Syndrome, Newborn / physiopathology
Venous Insufficiency / etiology
Ventilators, Negative-Pressure* / adverse effects