Carboxyhaemoglobin levels, pulse oximetry, and arterial blood gases during jet ventilation for Nd-YAG laser bronchoscopy

1990 ◽  
Vol 4 (6) ◽  
pp. 2
Author(s):  
D.R. Goldhill ◽  
A.J. Hill ◽  
R.H. Whitburn ◽  
R.O. Feneck ◽  
J. George ◽  
...  
Keyword(s):  
Pulse Oximetry ◽  
Blood Gases ◽  
Arterial Blood Gases ◽  
Jet Ventilation ◽  
Yag Laser ◽  
Arterial Blood

Carboxyhemolobin Concentrations, Pulse Oximetry and Arterial Blood Gas Tensions During Jet Ventilation for Nd-YAG Laser Bronchoscopy

1992 ◽  
Vol 36 (1) ◽  
pp. 6
Author(s):  
D. R. GOODHILL ◽  
A. J. HILL ◽  
R. H. WHITBURN ◽  
R. O. FENECK ◽  
P. J. M. GEORGE ◽  
...  
Keyword(s):  
Pulse Oximetry ◽  
Blood Gas ◽  
Jet Ventilation ◽  
Yag Laser ◽  
Arterial Blood Gas ◽  
Arterial Blood

Venturi Jet Ventilation through the Metal Endotracheal Tube: A Nonflammable System

1983 ◽  
Vol 92 (4) ◽  
pp. 405-407 ◽  
Author(s):  
Peak Woo ◽  
M. Stuart Strong
Keyword(s):  
Adverse Effects ◽  
Endotracheal Tube ◽  
Direct Laryngoscopy ◽  
Reliable Method ◽  
Blood Gases ◽  
Arterial Blood Gases ◽  
Jet Ventilation ◽  
Safe Method ◽  
Arterial Blood ◽  
Laser Excision

In an effort to design a fireproof and reliable method of ventilation during CO2 laser laryngoscopies, a new Venturi jet endotracheal tube coupler has been designed. This allows microdirect laryngoscopy. Its design features are described. Sixteen clinical cases of various laryngeal pathologies treated with direct laryngoscopy and laser excision are ventilated using this system. The clinical data and experiences are discussed. The arterial blood gases done at 20 minutes after muscular paralysis showed a median value of pH 7.45/PO2 252/PCO2 36. No complications or adverse effects were noted. The Venturi jet endotracheal tube coupler allows for jet ventilation through a metal endotracheal tube with reliable ventilation. This is an alternate, reliable, and fire-safe method during laser use.

Breathing Pattern and Arterial Blood Gases During Nd-YAG Laser Photoresection of Endobronchial Lesions Under General Anesthesia

CHEST Journal ◽  
1997 ◽  
Vol 112 (6) ◽  
pp. 1466-1473 ◽  
Author(s):  
Michele Vitacca ◽  
Giuseppe Natalini ◽  
Sergio Cavaliere ◽  
Enrico Clini ◽  
Pierfranco Foccoli ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Breathing Pattern ◽  
Blood Gases ◽  
Arterial Blood Gases ◽  
Yag Laser ◽  
Arterial Blood

Effect of mechanical load on tidal volume during high-frequency jet ventilation

1988 ◽  
Vol 64 (3) ◽  
pp. 1217-1222 ◽  
Author(s):  
G. G. Berdine ◽  
P. J. Strollo
Keyword(s):  
High Frequency ◽  
Mechanical Load ◽  
Blood Gases ◽  
Arterial Blood Gases ◽  
Jet Ventilation ◽  
Mechanical Loads ◽  
High Frequency Jet Ventilation ◽  
Arterial Blood ◽  
Frequency Independent ◽  
Load Conditions

High-frequency jet ventilation (HFJV) was studied in twelve deeply anesthetized, paralyzed dogs. Entrained volume and total expired volume were directly measured by integration of flow. Jet volume was computed from these measurements. Seven dogs were ventilated with a driving pressure of 10 psi at rates of 2 and 5 Hz for each of three mechanical loads: control, thoracoabdominal wrap, and histamine infusion. Both load conditions reduced total expired volume and entrained volume but had no effect on jet volume. Wrap reduced entrainment more at 2 Hz while the effect of histamine infusion was frequency independent. Control arterial blood gases demonstrated that PO2 was higher and PCO2 was lower during 2 Hz ventilation than during 5 Hz ventilation despite equivalent minute volumes. Five additional dogs were studied using control and wrap loads and an additional ventilator setting of 15 psi at 5 Hz. This group demonstrated that wrap reduces entrainment more at lower frequencies for ventilatory settings providing equivalent gas exchange. We conclude that increasing mechanical load reduces entrainment during HFJV and that this reduction is frequency dependent for restrictive loads.

A Comparison of Oxygen Saturation in White-tailed Deer Estimated by Pulse Oximetry and from Arterial Blood Gases

2012 ◽  
Vol 48 (2) ◽  
pp. 458-461 ◽  
Author(s):  
Lisa I. Muller ◽  
David A. Osborn ◽  
Tom Doherty ◽  
M. Kevin Keel ◽  
Brad F. Miller ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Pulse Oximetry ◽  
Blood Gases ◽  
Arterial Blood Gases ◽  
Arterial Blood

scholarly journals CARBOXYHAEMOGLOBIN CONCENTRATIONS, PULSE OXIMETRY AND ARTERIAL BLOOD-GAS TENSIONS DURING JET VENTILATION FOR Nd-YAG LASER BRONCHOSCOPY †

1990 ◽  
Vol 65 (6) ◽  
pp. 749-753 ◽  
Author(s):  
D.R. GOLDHILL ◽  
A.J. HILL ◽  
R.H. WHITBURN ◽  
R.O. FENECK ◽  
P.J.M. GEORGE ◽  
...  
Keyword(s):  
Pulse Oximetry ◽  
Blood Gas ◽  
Jet Ventilation ◽  
Yag Laser ◽  
Arterial Blood Gas ◽  
Arterial Blood

scholarly journals Pathophysiology and clinical consequences of arterial blood gases and pH after cardiac arrest

2020 ◽  
Vol 8 (S1) ◽  
Author(s):  
Chiara Robba ◽  
Dorota Siwicka-Gieroba ◽  
Andras Sikter ◽  
Denise Battaglini ◽  
Wojciech Dąbrowski ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mechanical Ventilation ◽  
Cardiac Arrest ◽  
Oxygen Demand ◽  
Blood Gases ◽  
Metabolic Energy ◽  
High Morbidity ◽  
Arterial Blood Gases ◽  
Arterial Blood ◽  
Clinical Consequences

AbstractPost cardiac arrest syndrome is associated with high morbidity and mortality, which is related not only to a poor neurological outcome but also to respiratory and cardiovascular dysfunctions. The control of gas exchange, and in particular oxygenation and carbon dioxide levels, is fundamental in mechanically ventilated patients after resuscitation, as arterial blood gases derangement might have important effects on the cerebral blood flow and systemic physiology.In particular, the pathophysiological role of carbon dioxide (CO2) levels is strongly underestimated, as its alterations quickly affect also the changes of intracellular pH, and consequently influence metabolic energy and oxygen demand. Hypo/hypercapnia, as well as mechanical ventilation during and after resuscitation, can affect CO2 levels and trigger a dangerous pathophysiological vicious circle related to the relationship between pH, cellular demand, and catecholamine levels. The developing hypocapnia can nullify the beneficial effects of the hypothermia. The aim of this review was to describe the pathophysiology and clinical consequences of arterial blood gases and pH after cardiac arrest.According to our findings, the optimal ventilator strategies in post cardiac arrest patients are not fully understood, and oxygen and carbon dioxide targets should take in consideration a complex pattern of pathophysiological factors. Further studies are warranted to define the optimal settings of mechanical ventilation in patients after cardiac arrest.

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