scholarly journals Carlens endobronchial catheter versus regular endotracheal tube during thoracic surgery: A comparison of blood gas tensions and pulmonary shunting

1971 ◽  
Vol 18 (6) ◽  
pp. 594-599 ◽  
Author(s):  
Sait Tarhan ◽  
Richard O. Lundborg
Keyword(s):  
Thoracic Surgery ◽  
Endotracheal Tube ◽  
Blood Gas ◽  
Pulmonary Shunting

scholarly journals Changes in the Bronchial Cuff Pressure of Left-Sided Double-Lumen Endotracheal Tube by Lateral Positioning: A Prospective Observational Study

2021 ◽  
Vol 10 (8) ◽  
pp. 1590
Author(s):  
Jong-Hae Kim ◽  
Eugene Kim ◽  
In-Young Kim ◽  
Eun-Joo Choi ◽  
Sung-Hye Byun
Keyword(s):  
Thoracic Surgery ◽  
Endotracheal Tube ◽  
Primary Outcome ◽  
Cuff Pressure ◽  
Lateral Decubitus Position ◽  
Double Lumen ◽  
Double Lumen Endotracheal Tube ◽  
Bronchial Cuff ◽  
Lateral Decubitus ◽  
Lateral Positioning

Proper bronchial cuff pressure (BCP) is important when using a double-lumen endotracheal tube (DLT), especially in thoracic surgery. As positional change during endotracheal tube placement could alter cuff pressure, we aim to evaluate the change in BCP of DLT from the supine to the lateral decubitus position during thoracic surgery. A total of 69 patients aged 18–70 years who underwent elective lung surgery were recruited. BCP was measured at a series of time points in the supine and lateral decubitus positions after confirming the DLT placement. The primary outcome was change in the initial established BCP (BCPi), which is the maximum pressure at which the BCP did not exceed 40 cmH2O without air leak in the supine position, after lateral decubitus positioning. As the primary outcome, the BCPi increased from 25.4 ± 9.0 cmH2O in the supine position to 29.1 ± 12.2 cmH2O in the lateral decubitus position (p < 0.001). Out of the 69 participants, 43 and 26 patients underwent surgery in the left-lateral decubitus position (LLD group) and the right-lateral decubitus position (RLD group) respectively. In the LLD group, the BCPi increased significantly (p < 0.001) after lateral positioning and the beginning of surgery and the difference value, ∆BCPi, from supine to lateral position was significantly higher in the LLD group than in the RLD group (p = 0.034). Positional change from supine to lateral decubitus could increase the BCPi of DLT and the increase was significantly greater in LLD that in RLD.

Pregnant sheep develop hypoxaemia during short-term anaesthesia for caesarean delivery

2018 ◽  
Vol 52 (5) ◽  
pp. 497-503
Author(s):  
Gabrielle C Musk ◽  
Matthew W Kemp
Keyword(s):  
Partial Pressure ◽  
Endotracheal Tube ◽  
Caesarean Delivery ◽  
Supplemental Oxygen ◽  
Blood Gas ◽  
Short Term ◽  
Blood Samples ◽  
Arterial Blood ◽  
Pregnant Sheep ◽  
Pregnant Ewe

Short-term anaesthesia of the pregnant ewe may be required for caesarean delivery of a preterm foetus within a research protocol. The aim of this study was to evaluate and compare the acid-base and haematological status of the ewe and foetus at the time of surgical delivery by collecting maternal and foetal arterial blood samples. Fifteen date-mated singleton-pregnant merino cross ewes at 122.0 (±0.5) days of gestation were anaesthetised with a combination of midazolam (0.5 mg/kg) and ketamine (10 mg/kg) by intravenous injection. A subarachnoid injection of lidocaine (60 mg) was given to desensitise the caudal abdomen. Supplemental oxygen was not provided, and an endotracheal tube was not placed in the ewe’s trachea. The development of maternal respiratory acidosis (hypercapnia) and hypoxaemia was anticipated. Samples of arterial blood for blood gas analyses were collected simultaneously from the radial artery of the ewe and the umbilical artery of the foetus immediately after delivery. The results from the maternal blood samples were within the normal range for pH, partial pressure of carbon dioxide in arterial blood (PaCO2), base excess, glucose, lactate, haematocrit and haemoglobin concentration. The maternal partial pressure of oxygen in arterial blood (PaO2) revealed hypoxaemia: 45.2 (41.1–53.4) mmHg. Foetal arterial blood gas analysis revealed hypoxaemia (15.0 ± 3.1 mmHg) and hypoglycaemia (0.1 (0.1–1.1) mmol/L). The benefit of providing supplemental oxygen and/or placing an endotracheal tube must be carefully weighed against the benefit of saving time when prompt delivery of the foetus is planned. In this study the pregnant ewe developed severe hypoxaemia, and this abnormality may have contributed to a low foetal PaO2.

Continuous intra-arterial blood gas monitoring during thoracic surgery

2000 ◽  
Vol 14 (3) ◽  
pp. 119-123 ◽  
Author(s):  
Seiji Ishikawa ◽  
Susumu Ohmi ◽  
Koichi Nakazawa ◽  
Koshi Makita
Keyword(s):  
Thoracic Surgery ◽  
Blood Gas ◽  
Gas Monitoring ◽  
Arterial Blood Gas ◽  
Blood Gas Monitoring ◽  
Arterial Blood

scholarly journals The Comparison of the Effects of Sevoflurane Inhalation Anesthesia and Intravenous Propofol Anesthesia on Oxidative Stress in One Lung Ventilation

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Engin Erturk ◽  
Selma Topaloglu ◽  
Davut Dohman ◽  
Dilek Kutanis ◽  
Ahmet Beşir ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Thoracic Surgery ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Lung Ventilation ◽  
Anesthesia Induction ◽  
Blood Gas ◽  
One Lung Ventilation ◽  
Inhalation Anesthesia ◽  
Blood Samples

Background. The aim of this study is to compare the effects of sevoflurane and propofol on one lung ventilation (OLV) induced ischemia-reperfusion injury (IRI) by determining the blood gas, ischemia-modified albumin (IMA), and malonyldialdehyde (MDA).Material and Methods. Forty-four patients undergoing thoracic surgery with OLV were randomized in two groups (sevoflurane Group S, propofol Group P). Anesthesia was inducted with thiopental and was maintained with 1–2.5% of sevoflurane within the 40/60% of O2/N2O mixture in Group S. In Group P anesthesia was inducted with propofol and was maintained with infusion of propofol and remifentanil. Hemodynamic records and blood samples were obtained before anesthesia induction (t1), 1 min before two lung ventilation (t2), 30 min after two lung ventilation (t3), and postoperative sixth hours (t4).Results. Heart rate att2andt3in Group P was significantly lower than that in Group S. While there were no significant differences in terms of pH and pCO2, pO2att2andt3in Group S was significantly lower than that in Group P. IMA levels att4in Group S were significantly lower than those in Group P.Conclusion. Sevoflurane may offer protection against IRI after OLV in thoracic surgery.

Endotracheal suctioning: time-worn ritual or timely intervention?

1995 ◽  
Vol 4 (2) ◽  
pp. 100-105 ◽  
Author(s):  
B Copnell ◽  
D Fergusson
Keyword(s):  
Registered Nurses ◽  
Endotracheal Tube ◽  
Theoretical Knowledge ◽  
Objective Data ◽  
Blood Gas ◽  
Hemodynamic Changes ◽  
Endotracheal Suctioning ◽  
Experienced Nurses ◽  
Single Criterion

BACKGROUND: Although many investigators have assessed the technique of endotracheal tube suctioning, the tissue of how frequently it should be performed remains controversial. No objective data is available to determine the answer. OBJECTIVE: To determine the criteria nurses use to make decisions regarding endotracheal suctioning. METHOD: Twenty-four registered nurses of varying levels of experience were asked a series of open-ended questions related to their theoretical knowledge, their ability to apply this knowledge, their suctioning practice, and how they made decisions regarding suctioning. RESULTS: All participants believed their patients required suctioning every 1 to 3 hours, with 17 performing it every 2 to 3 hours. Twenty criteria of which nine related to frequency were used in determining suctioning requirements. Eleven related to recognizing the need for immediate suctioning and were concerned with changes in the patient's condition. Common significant changes included desaturation, hemodynamic changes, loss of color, and blood gas changes. No single criterion was identified by all nurses. No differences were apparent between experienced and less experienced nurses. CONCLUSIONS: The large number of criteria identified suggests that the decision to suction is a complex one. It is a concern that many nurses rely on a deterioration in the patient's condition to indicate when suctioning is required. A policy of suctioning as necessary is provision of clear guidelines and education of all staff.

Lung Separation during Thoracic Surgery: Arndt Endobronchial Blocker® Versus Double-Lumen Endotracheal Tube

2002 ◽  
Vol 96 (Sup 2) ◽  
pp. A1316
Author(s):  
Volker Lischke ◽  
Stephan Mierdl ◽  
Klaus Westphal ◽  
Dirk Meininger ◽  
Christian Byhahn
Keyword(s):  
Thoracic Surgery ◽  
Endotracheal Tube ◽  
Double Lumen ◽  
Double Lumen Endotracheal Tube ◽  
Endobronchial Blocker

scholarly journals Use of CO2 in video assisted thoracic surgery and single-lumen endotracheal tube—a new less invasive approach

2017 ◽  
Vol 9 (4) ◽  
pp. 903-906 ◽  
Author(s):  
Javier Gallego-Poveda ◽  
Nuno Carvalho Guerra ◽  
Catarina Carvalheiro ◽  
Hugo Ferreira ◽  
André Sena ◽  
...  
Keyword(s):  
Thoracic Surgery ◽  
Endotracheal Tube ◽  
Invasive Approach ◽  
Video Assisted Thoracic Surgery ◽  
Less Invasive ◽  
Video Assisted ◽  
Single Lumen ◽  
Less Invasive Approach

The influence of labetalol on arterial blood gas data, pulmonary haemodynamics and pulmonary shunting

1988 ◽  
Vol 15 (1) ◽  
pp. 42-45 ◽  
Author(s):  
S. G. De Hert ◽  
L. G. Heytens ◽  
R. G. De Jongh ◽  
M. P. Vercauteren ◽  
E. A. Boeckx ◽  
...  
Keyword(s):  
Blood Gas ◽  
Arterial Blood Gas ◽  
Arterial Blood ◽  
Pulmonary Shunting ◽  
Pulmonary Haemodynamics
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