Time course of end-tidal CO2 after Adjustment of ventilatory parameters during stable general anesthesia

2006 ◽  
Vol 23 (Supplement 37) ◽  
pp. 70
Author(s):  
M. Negrau ◽  
M. Filip ◽  
Z. Beres ◽  
L. I. Szegedi ◽  
L. L. Szegedi ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Time Course ◽  
Ventilatory Parameters ◽  
End Tidal ◽  
End Tidal Co2

Respiratory monitoring

2011 ◽  
Author(s):  
Carl Waldmann ◽  
Neil Soni ◽  
Andrew Rhodes
Keyword(s):  
Pulmonary Function ◽  
Pulmonary Function Tests ◽  
Test Results ◽  
Mechanical Ventilators ◽  
Mechanically Ventilated ◽  
Ventilatory Parameters ◽  
Co2 Monitoring ◽  
Function Test ◽  
End Tidal ◽  
End Tidal Co2

Pulmonary function tests in critical illness 90End-tidal CO2 monitoring 92Pulse oximetry 94Pulmonary function test results in critically ill patients can be important prognostically and guide ventilatory and weaning strategies. However, they are not straightforward to measure in mechanically ventilated patients and remain limited to dynamic volumes. Fortunately, most modern mechanical ventilators are able to calculate and display static and dynamic lung volumes, together with derived values for airway resistance, compliance and flow/volume/time curves. The ability to monitor these changes after altering ventilatory parameters has enabled more sophisticated adjustments of ventilation, to prevent potentially damaging mechanical ventilation....

scholarly journals Illinois Dental Anesthesia and Sedation Survey for 2016

2019 ◽  
Vol 66 (2) ◽  
pp. 77-86 ◽  
Author(s):  
William Flick ◽  
Michael Lloyd
Keyword(s):  
General Anesthesia ◽  
Life Support ◽  
Advanced Cardiac Life Support ◽  
Moderate Sedation ◽  
Pediatric Dentists ◽  
General Dentists ◽  
End Tidal ◽  
Electrocardiogram Monitoring ◽  
Staffing Requirements ◽  
End Tidal Co2

A statewide decennial survey was sent to practicing dentists holding sedation or general anesthesia permits to identify office sedation/general anesthesia trends and practices over the last 10 years. This survey constitutes the third such survey, spanning a total of 20 years. Of the 234 respondents in the 2016 survey, 34% held an Illinois moderate sedation permit and 64% held a general anesthesia permit. Oral and maxillofacial surgeons represented the majority of respondents (143/234; 61%). The remainder of responses were from general dentists (39; 17%) pediatric dentists (32; 14%), periodontists (16; 7%), dentist anesthesiologists (3; 1.3%) and 1 periodontist/dentist anesthesiologist. Surveys over the 20 years revealed the following significant trends: an increase in practitioners current in advanced cardiac life support certification, an increase in the number of non-oral maxillofacial surgeons with a sedation permit, an increase in providers of moderate sedation, and an increase in offices equipped with end-tidal CO2 and electrocardiogram monitoring. However, a number of providers were identified as not compliant with certain state mandates. For example, many respondents failed to meet minimum office team staffing requirements during sedation, hold semiannual office emergency drills, and establish written emergency management protocols.

scholarly journals Inadvertent severe hypercapnia during general anesthesia: drop-in oxygen saturation or electrocardiography changes; which one warns us earlier?

2022 ◽  
Vol 14 (1) ◽  
Author(s):  
Ali Solhpour ◽  
Ardeshir Tajbakhsh ◽  
Saeid Safari ◽  
Maryam Movaffaghi ◽  
Mohamad Amin Pourhoseingholi ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
General Anesthesia ◽  
Premature Ventricular Contraction ◽  
Warning Sign ◽  
Ventricular Contraction ◽  
High Concentration ◽  
Cardiac Dysrhythmias ◽  
Long Time ◽  
End Tidal ◽  
End Tidal Co2

Abstract Background During general anesthesia especially when the nurse or anesthesiologist forgets to change manual to controlled mode after successful endotracheal intubation, capnography shows End-tidal Co2 above 20 mmHg after checking the place of the tracheal tube and will remain on the screen permanently. In this scenario, the patient receives a high concentration of oxygen, and Spo2 (oxygen saturation) does not drop for a long time which is too late to intervene. It has been all-time questionable which one of the cardiac dysrhythmias or Spo2 dropping occurs earlier. Results Medical records of seven deceased patients reviewed. All of them had electrocardiogram changes including premature ventricular contraction or bradycardia as a first warning sign. Oxygen saturation remains above 95% even with cardiac dysrhythmia. Conclusions Bradycardia and premature ventricular contraction were the first warning findings for severe hypercapnia during general anesthesia and occurred earlier than dropping oxygen saturation. Furthermore, the normal capnography waveform is more reliable than the End-tidal Co2 number for monitoring.

scholarly journals Cardiorespiratory Functioning in Youth with Persistent Post-Concussion Symptoms: A Pilot Study

2021 ◽  
Vol 10 (4) ◽  
pp. 561
Author(s):  
Aliyah Snyder ◽  
Christopher Sheridan ◽  
Alexandra Tanner ◽  
Kevin Bickart ◽  
Molly Sullan ◽  
...  
Keyword(s):  
Processing Speed ◽  
Mean Value ◽  
Exhaled Breath ◽  
Post Injury ◽  
The Past ◽  
Neurobehavioral Outcomes ◽  
End Tidal ◽  
Relationship Of ◽  
The Relationship ◽  
End Tidal Co2

Dysregulation of the autonomic nervous system (ANS) may play an important role in the development and maintenance of persistent post-concussive symptoms (PPCS). Post-injury breathing dysfunction, which is influenced by the ANS, has not been well-studied in youth. This study evaluated cardiorespiratory functioning at baseline in youth patients with PPCS and examined the relationship of cardiorespiratory variables with neurobehavioral outcomes. Participants were between the ages of 13–25 in two groups: (1) Patients with PPCS (concussion within the past 2–16 months; n = 13) and (2) non-injured controls (n = 12). Capnometry was used to obtain end-tidal CO2 (EtCO2), oxygen saturation (SaO2), respiration rate (RR), and pulse rate (PR) at seated rest. PPCS participants exhibited a reduced mean value of EtCO2 in exhaled breath (M = 36.3 mmHg, SD = 2.86 mmHg) and an altered inter-correlation between EtCO2 and RR compared to controls. Neurobehavioral outcomes including depression, severity of self-reported concussion symptoms, cognitive catastrophizing, and psychomotor processing speed were correlated with cardiorespiratory variables when the groups were combined. Overall, results from this study suggest that breathing dynamics may be altered in youth with PPCS and that cardiorespiratory outcomes could be related to a dimension of neurobehavioral outcomes associated with poorer recovery from concussion.

End-tidal CO2 pressure in the monitoring of cardiac output during canine hemorrhagic shock

1990 ◽  
Vol 5 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Arnaldo Dubin ◽  
Carlos Silva ◽  
Gladys Calvo ◽  
Javier Valli ◽  
Osvaldo Fariña ◽  
...  
Keyword(s):  
Cardiac Output ◽  
Hemorrhagic Shock ◽  
End Tidal ◽  
End Tidal Co2

END-TIDAL CO2 AFFECTED BY INSPIRATORY TIME AND FLOW WAVEFORM–TIME FOR A CHANGE

1986 ◽  
Vol 14 (4) ◽  
pp. 374 ◽  
Author(s):  
Michael J. Banner ◽  
Philip G. Boysen ◽  
Samsun Lampotang ◽  
Marc J. Jaeger
Keyword(s):  
Flow Waveform ◽  
Inspiratory Time ◽  
End Tidal ◽  
End Tidal Co2
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