Effects of rapid inhalation induction with sevoflurane-oxygen anesthesia on epidural pressure in humans

1995 ◽  
Vol 9 (1) ◽  
pp. 6-10 ◽  
Author(s):  
Zen'ichiro Wajima ◽  
Noriyuki Kobayashi ◽  
Hitoshi Kadotani ◽  
Hitoshi Adachi ◽  
Gen Ishikawa ◽  
...  
Keyword(s):  
Epidural Pressure ◽  
Inhalation Induction

Effects of rapid inhalation induction with sevoflurane-oxygen anesthesia on epidural pressure in humans

1995 ◽  
Vol 9 (1) ◽  
Author(s):  
Zen?ichiro Wajima ◽  
Noriyuki Kobayashi ◽  
Hitoshi Kadotani ◽  
Hitoshi Adachi ◽  
Gen Ishikawa ◽  
...  
Keyword(s):  
Epidural Pressure ◽  
Inhalation Induction

Some principles of postoperative epidural pressure monitoring

1981 ◽  
Vol 55 (3-4) ◽  
pp. 227-245 ◽  
Author(s):  
M. Belopavlovic ◽  
A. Buchthal ◽  
J. W. F. Beks ◽  
H. L. Journée
Keyword(s):  
Pressure Monitoring ◽  
Epidural Pressure

Target-controlled inhalation induction with sevoflurane in children: a prospective pilot study

2009 ◽  
Vol 19 (2) ◽  
pp. 126-132 ◽  
Author(s):  
NICOLAS FRITSCH ◽  
KARINE NOUETTE-GAULAIN ◽  
MARYLINE BORDES ◽  
FRANCOIS SEMJEN ◽  
YVES MEYMAT ◽  
...  
Keyword(s):  
Pilot Study ◽  
Inhalation Induction ◽  
Prospective Pilot Study

A New Miniaturized System for Monitoring the Epidural Pressure in Children and Adults

1977 ◽  
Vol 8 (01) ◽  
pp. 21-28 ◽  
Author(s):  
K. Dietrich ◽  
M. Gaab ◽  
O. Knoblich ◽  
J. Schupp ◽  
B. Ott
Keyword(s):  
Epidural Pressure

Some pressure and fluid dynamic characteristics of the canine epidural space

1977 ◽  
Vol 232 (3) ◽  
pp. H255-H259
Author(s):  
R. G. Bengis ◽  
A. C. Guyton
Keyword(s):  
Epidural Space ◽  
Fluid Dynamic ◽  
Fluid Pressure ◽  
Simultaneous Recording ◽  
Positive Pressure ◽  
Pressure Curve ◽  
Epidural Pressure ◽  
Volume Depletion ◽  
Significant Drop ◽  
Epidural Catheters

Pressure measured in teh epidural space of 50 dogs was consistently negative (subatmospheric). Acutely implanted epidural catheters gave an average reading of -2.72 mmHg (n = 44, SE = 0.18), whereas chronically implanted catheters gave more negative readings, averaging -5.8 mmHg (n = 6, SE = 0.49). Since the chronically implanted catheters permit healing, resolution of hemorrhage, and resealing of the epidural space to take place, resulting in equilibration of microcirulatory forces, these readings are believed to represent more closely the true epidural pressure. Also these results approximate closely the calculated and measured interstitial fluid pressures obtained by different techniques in other loose areolar connective tissue systems. Compliance studies, using a double-lumen catheter for simultaneous recording and infusing in the epidural space, showed increasing compliance as the pressure rose into the positive pressure range, with an eventual plateau of the volume-pressure curve at the level of the concomitantly measured cerebrospinal fluid pressure (avg = +5.73 mmHg, n = 10, SE = 0.48). Intravenous volume loading using Tyrode solution caused a large rise in epidural pressure, and volume depletion with diuretics caused a significant drop in epidural pressure.

scholarly journals Inhalation Induction in Tracheostomized Patients: Comparison of Desflurane and Sevoflurane

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Erkalp Kerem ◽  
Erkalp Nuran Kalekoglu ◽  
Erden Veysel ◽  
Korkut Arzu Yasemin ◽  
Abut Yesim Cokay
Keyword(s):  
Inhalation Induction

scholarly journals A Prospective Study of Single Breath Vital Capacity Inhalation Induction with High Concentration of Sevoflurane (Sbvc-Hc) for LMA Insertion in Adults for Short Surgical Cases

2020 ◽  
Vol 5 (1) ◽  
pp. 30-33
Author(s):  
Kailash Prabhudev ◽  
Naveen Kumar K
Keyword(s):  
Prospective Study ◽  
Short Duration ◽  
Gas Flow ◽  
Vital Capacity ◽  
Randomized Study ◽  
High Concentration ◽  
Inhalation Induction ◽  
Inhalation Anesthesia ◽  
Volatile Anesthetic Agent ◽  
The Mean

Background: Sevoflurane is a new volatile anesthetic agent with rapid induction and recovery. A randomized study was carried to access conditions for LMA insertion using Sevoflurane in 25 ASA I & II patients undergoing short duration surgeries.Subjects and Methods:This prospective study was conducted at Department of Anesthesiology and Critical Care, SVS Medical College and Hospital, Mahabubnagar, Telangana, India. After obtaining the institutional ethics committee and written informed consent from the patients, 25 subjects of either sex were included in this study. Age of the subjects was 18 to 60 years. Patients received injection Fentanyl 1 – 2mcg/kg prior to induction. All patients were pre-oxygenated for 3 min with 100% oxygen using a fresh gas flow of 81/min. All patients received inhalational induction with 8% Sevoflurane and O2 flow at 8 L/min with single vital capacity breathe technique. Loss of verbal contact was considered as the desired endpoint for induction, which was assessed by the response to calling out the patient’s name. Then the time of loss of eyelash reflex and jaw relaxation was assessed by anesthesiologist. After adequate jaw relaxation, LMA insertion was attempted.Results:The mean loss of verbal contact was 65.40±9.67second, while the mean for time for loss of eyelash reflex and jaw relaxation were found to be 81.20±9.39 seconds and 103.20 ±12.07 seconds respectively. The mean time for LMA insertion was 122.00±15.61 and the mean attempts for successful LMA insertion was 1.12±0.33. LMA insertion was easy in 23 cases as against difficult in 2 cases. In 2 cases transient cough and biting were recorded. LMA insertion was excellent and satisfactory in 88.0 and 12 percent. However, the mean heart rate at 5 minute after induction showed a significant fall at 5 minutes after induction. The mean values of SBP, DBP and MAP did not differ significantly at pre and induction. However, a significant decrease in SBP was noticed at 1, 2 and at 5 minutes.Conclusion:Sevoflurane is an smooth inhalation anesthesia with rapid onset with adequate jaw relaxation for insertion of LMA in Adults for short duration surgeries. Sevoflurane has got good hemodynamic profile with lesser complications owing to choice of inhalation agent for insertion of LMA.

scholarly journals Comparison of Epidural Pressure Decrease Pattern According to Different Lumbar Epidural Approaches

2020 ◽  
Vol 2;23 (4;2) ◽  
pp. E202-E210
Author(s):  
Jihee Hong
Keyword(s):  
Epidural Space ◽  
Management Practice ◽  
Epidural Injection ◽  
Epidural Pressure ◽  
Abrupt Decrease ◽  
Interspinous Ligament ◽  
Pressure Decrease ◽  
Significant Difference ◽  
Key Words Epidural ◽  
Midline Approach

Background: During lumbar epidural injection (LEI) using a midline approach, we might encounter failure of identifying the epidural space owing to an equivocal or absent loss of resistance (LOR) sensation. The reason for such absence of LOR sensation has been suggested as paucity of midline ligamentum flavum, paravertebral muscle, and cyst in the interspinous ligament of the lumbar spine. Despite its low specificity, LOR is the most commonly used method to identify the epidural space. Objectives: The purpose of this study was to analyze lumbar epidural pressure decrease patterns and identify factors contributing to this pressure decrease. Study Design: Prospective randomized trial. Setting: An interventional pain management practice in South Korea. Methods: This prospective study included 104 patients receiving LEI due to lumbar radiculopathy. A midline or paramedian approach of LEI was determined with randomization. Among various factors, gender, age, body mass index (BMI), and diagnosis were analyzed using a subgroup that included 60 cases of only a paramedian approach. Results: Grades I, II (abrupt decrease), and III (gradual decrease) were found as patterns of epidural pressure decrease. Abrupt pressure decrease was more frequently observed in the paramedian group (P < 0.001). Age, gender, BMI, and diagnosis did not show any significant difference in frequencies between abrupt and gradual pressure decrease. Limitations: We could not match LOR sensation with epidural pressure decrease shown in the monitor. Conclusions: This study demonstrates that abrupt pressure decrease occurs more frequently with the paramedian approach. However, age, gender, BMI, or diagnosis did not affect the incidence of epidural pressure decrease. Key words: Epidural, paramedian, midline, pressure decrease

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