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Evaluation of Volatile Induction and Maintenance Anesthesia (VIMA) With Sevorane in Adult Patients Required General Anesthesia for Surgery in Terms of Quality of Anesthesia and Its Influence on Cardiovascular System in Common Clinical Practice

Evaluation of VIMA With SEVOrane in Adult Patients Required General Anesthesia fOr Surgery in TErms of Quality of Anesthesia and Its Influence on Cardiovascular sysTem In commON Clinical Practice (SEVOPROTECTION)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01282203
Acronym
SEVOPROTECTION
Enrollment
1122
Registered
2011-01-24
Start date
2011-07-31
Completion date
2011-11-30
Last updated
2013-03-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anesthesia, General

Keywords

General surgery, General anesthesia, Inhalation anesthesia, Sevorane, Sevoflurane

Brief summary

The main objective of this post-marketing observational study is to collect data from the use of general anesthesia in patients undergoing any surgery to create local recommendations. These data will be based on the evaluation of volatile induction and maintenance anesthesia (VIMA) with Sevorane® (sevoflurane) in adult patients requiring general anesthesia for surgery in terms of quality of anesthesia and its influence on cardiovascular system in common clinical practice in Kazakhstan.

Detailed description

This post-marketing observational study will be conducted in a prospective, multi-centre format. It is a non-interventional, observational study in which Sevorane is prescribed for adult patients undergoing general surgery for induction and maintenance of anesthesia in the usual manner in accordance with the terms of the local marketing authorization. Sevorane is used for induction and maintenance anesthesia by the choice of anesthesiologist. No additional procedures (other than standard of care) shall be applied to the patients. Each patient will be observed from the start of anesthesia through anesthesia end. Markers of myocardial ischemia will be detected up to the first 24 hours after anesthesia (if available). Additionally the correlation between the experience and training background of anesthesiologists and patient related outcomes of general anesthesia with Sevorane as a single anesthetic will be assessed.

Interventions

None listed

Sponsors

AbbVie (prior sponsor, Abbott)
Lead SponsorINDUSTRY

Study design

Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients needing general anesthesia for planned or urgent surgery for whom Sevorane is used for induction and maintenance anesthesia by the choice of anesthesiologist * Age greater than or equal to 18 years

Exclusion criteria

* Known sensitivity to sevoflurane or other anesthetic containing halogen * Known or suspected genetic susceptibility to malignant hyperthermia * Receiving regional anesthetic techniques * Receiving intravenous anesthesia * A history of unexplained moderate/severe hepatic dysfunction with jaundice, fever, and/or eosinophilia in association with halogenated anesthetics

Design outcomes

Primary

MeasureTime frameDescription
Time to Loss of Consciousness of Patients Administered AnesthesiaUp to 10 minutesLoss of consciousness was measured from the time the anesthetic was administered until loss of consciousness (loss of eyelash reflex) occurred.
Time to Awakening of PatientsEvery minute after anesthesia was stopped until the patient responded to a verbal command.Measured from the time anesthesia administration was stopped until the patient responded to a verbal command.
Time to Extubation of PatientsEvery minute after anesthesia was stopped until extubation occurredTime to extubation was measured from the time anesthesia administration was stopped until tracheal extubation occurred.
Anesthesiologists' Satisfaction With Using Sevorane for Induction and Maintenance AnesthesiaDay 1The overall satisfaction of the anesthesiologist with the inhalation anesthesia with Sevorane for each patient was assessed by means of a numerical rating scale ranging from 0 (dissatisfied) to 10 (very satisfied).
Patients' Overall Impression of Anesthesia With SevoraneDay 1After awakening from anesthesia, patients were surveyed regarding their overall impression of anesthesia with Sevorane. Patients selected one of the following answers: Excellent, positive, indifferent, or other.

Secondary

MeasureTime frameDescription
Cardiac Troponin (if Available)Within 24 hours after anesthesiaTroponin T values measured within 24 hours of anesthesia were to be collected when available.
Creatine Kinase Myocardial Isoenzyme (if Available)Within 24 hours after anesthesiaCreatine kinase myocardial isoenzyme values measured within 24 hours of anesthesia were to be collected when available.
Systolic Blood PressureBefore starting anesthesia to one hour after the surgeryThe systolic blood pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.
Correlation Between Anesthesiologists' Clinical Experience and Time to Extubation and AwakeningEvery minute after anesthesia was stopped until the patient was extubated and until the patient responded to a verbal commandAnesthesiologists' length of clinical experience with general anesthesia and modern inhalation agents was collected (see Outcome Measure 15). The influence of this clinical experience on anesthesia parameters was evaluated by calculating Spearman's correlation coefficient between the duration of clinical experience with inhalation anesthesia and Sevorane on the time to extubation and the time to awakening, respectively.
Anesthesiologists' Duration of Clinical Experience With AnesthesiaBaselineMean number of years of participating anesthesiologists' clinical experience with general anesthesia, with modern inhalation agents, and with Sevorane. (See Outcome Measures 13 and 14 for correlated data.)
Correlation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaBefore starting anesthesia to one hour after the surgeryThe anesthesiologists' length of clinical experience with Sevorane was collected (see Outcome Measure 15). The influence of this experience on the changes in hemodynamic parameters during anesthesia with Sevorane was evaluated by calculating Spearman's correlation coefficient between the duration of clinical experience with Sevorane and the changes in blood pressure, mean arterial pressure, and heart rate between T0 (before anesthesia) and T1 (at the end of induction), T2 (at the end of surgical incision), T3 (at the end of extubation), T4 ( 1 hour after the surgery), and the minimum and maximum values, respectively.
Diastolic Blood PressureBefore starting anesthesia to one hour after the surgeryThe diastolic blood pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.
Mean Arterial PressureBefore starting anesthesia to one hour after the surgeryThe mean arterial pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.
Heart RateBefore starting anesthesia to one hour after the surgeryThe heart rate of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.
Presence of Deviations in Electrocardiogram Assessments During AnesthesiaDuring induction and maintenance of anesthesiaElectrocardiogram (ECG) assessments performed during induction of the anesthesia and maintenance were analyzed with respect to the presence of the following deviations: Blockades (problems with heart electrical activity), extrasystoles (extra abnormal heart beats), arrhythmia (abnormal heart rate or rhythm), and myocardial ischemia (decreased blood flow to the heart).

Countries

Kazakhstan

Participant flow

Participants by arm

ArmCount
Adults Requiring Anesthesia for Surgery
Adult patients requiring general anesthesia for surgery
1,122
Total1,122

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1

Baseline characteristics

CharacteristicAdults Requiring Anesthesia for Surgery
Age Continuous45.1 years
STANDARD_DEVIATION 9
Sex: Female, Male
Female
619 Participants
Sex: Female, Male
Male
503 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
1 / 1,122
serious
Total, serious adverse events
4 / 1,122

Outcome results

Primary

Anesthesiologists' Satisfaction With Using Sevorane for Induction and Maintenance Anesthesia

The overall satisfaction of the anesthesiologist with the inhalation anesthesia with Sevorane for each patient was assessed by means of a numerical rating scale ranging from 0 (dissatisfied) to 10 (very satisfied).

Time frame: Day 1

Population: All participants with available data were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryAnesthesiologists' Satisfaction With Using Sevorane for Induction and Maintenance Anesthesia9.2 units on a scaleStandard Deviation 1.1
Primary

Patients' Overall Impression of Anesthesia With Sevorane

After awakening from anesthesia, patients were surveyed regarding their overall impression of anesthesia with Sevorane. Patients selected one of the following answers: Excellent, positive, indifferent, or other.

Time frame: Day 1

Population: All participants with available data were included in the analysis.

ArmMeasureGroupValue (NUMBER)
Adults Requiring Anesthesia for SurgeryPatients' Overall Impression of Anesthesia With SevoraneExcellent476 Participants
Adults Requiring Anesthesia for SurgeryPatients' Overall Impression of Anesthesia With SevoranePositive627 Participants
Adults Requiring Anesthesia for SurgeryPatients' Overall Impression of Anesthesia With SevoraneIndifferent11 Participants
Adults Requiring Anesthesia for SurgeryPatients' Overall Impression of Anesthesia With SevoraneOther0 Participants
Primary

Time to Awakening of Patients

Measured from the time anesthesia administration was stopped until the patient responded to a verbal command.

Time frame: Every minute after anesthesia was stopped until the patient responded to a verbal command.

Population: All participants with available data were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryTime to Awakening of Patients15.4 MinutesStandard Deviation 19.8
Primary

Time to Extubation of Patients

Time to extubation was measured from the time anesthesia administration was stopped until tracheal extubation occurred.

Time frame: Every minute after anesthesia was stopped until extubation occurred

Population: All participants with available data were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryTime to Extubation of Patients65.7 MinutesStandard Deviation 127.5
Primary

Time to Loss of Consciousness of Patients Administered Anesthesia

Loss of consciousness was measured from the time the anesthetic was administered until loss of consciousness (loss of eyelash reflex) occurred.

Time frame: Up to 10 minutes

Population: All participants with available data were included in the analysis.

ArmMeasureValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryTime to Loss of Consciousness of Patients Administered Anesthesia2.7 MinutesStandard Deviation 1.4
Secondary

Anesthesiologists' Duration of Clinical Experience With Anesthesia

Mean number of years of participating anesthesiologists' clinical experience with general anesthesia, with modern inhalation agents, and with Sevorane. (See Outcome Measures 13 and 14 for correlated data.)

Time frame: Baseline

Population: Number of anesthesiologists participating in study.

ArmMeasureValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryAnesthesiologists' Duration of Clinical Experience With Anesthesia17.8 yearsStandard Deviation 9.2
Inhalation AnesthesiaAnesthesiologists' Duration of Clinical Experience With Anesthesia15.4 yearsStandard Deviation 11.6
Anesthesia With SevoraneAnesthesiologists' Duration of Clinical Experience With Anesthesia3.5 yearsStandard Deviation 2.5
Secondary

Cardiac Troponin (if Available)

Troponin T values measured within 24 hours of anesthesia were to be collected when available.

Time frame: Within 24 hours after anesthesia

Population: No data were available for the cardiac troponin outcome measure.

Secondary

Correlation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During Anesthesia

The anesthesiologists' length of clinical experience with Sevorane was collected (see Outcome Measure 15). The influence of this experience on the changes in hemodynamic parameters during anesthesia with Sevorane was evaluated by calculating Spearman's correlation coefficient between the duration of clinical experience with Sevorane and the changes in blood pressure, mean arterial pressure, and heart rate between T0 (before anesthesia) and T1 (at the end of induction), T2 (at the end of surgical incision), T3 (at the end of extubation), T4 ( 1 hour after the surgery), and the minimum and maximum values, respectively.

Time frame: Before starting anesthesia to one hour after the surgery

Population: All participants with available data at each time point were included in the analysis.

ArmMeasureGroupValue (NUMBER)
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (T1- T0; n=1121)0.271 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (T2-T0; n=1121)0.207 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (T3 -T0; n=1005)0.143 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (T4 -T0; n=1105)0.131 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (Minimum -T0; n=1120)0.213 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaSystolic blood pressure (Maximum -T0; n=1120)0.153 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (T1-T0; n=1119)0.289 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (T2-T0; n=1119)0.243 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (T3-T0; n=1005)0.203 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (T4-T0; n=1105)0.196 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (Minimum-T0; n=1118)0.288 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaDiastolic blood pressure (Maximum-T0; n=1118)0.163 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (T1-T0; n=1101)0.308 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (T2-T0; n=1102)0.250 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (T3-T0; n=988)0.199 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (T4-T0; n=1084)0.196 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (Minimum-T0; n=1099)0.288 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaMean arterial blood pressure (Maximum-T0; n=1099)0.177 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (T1-T0; n=1117)0.269 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (T2-T0; n=1116)0.245 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (T3-T0; n=995)-0.040 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (T4-T0; n=1101)-0.030 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (Minimum-T0; n=1115)0.223 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Hemodynamic Parameters During AnesthesiaHeart rate (Maximum-T0; n=1116)0.120 Spearman's correlation coefficient
Secondary

Correlation Between Anesthesiologists' Clinical Experience and Time to Extubation and Awakening

Anesthesiologists' length of clinical experience with general anesthesia and modern inhalation agents was collected (see Outcome Measure 15). The influence of this clinical experience on anesthesia parameters was evaluated by calculating Spearman's correlation coefficient between the duration of clinical experience with inhalation anesthesia and Sevorane on the time to extubation and the time to awakening, respectively.

Time frame: Every minute after anesthesia was stopped until the patient was extubated and until the patient responded to a verbal command

Population: All participants with available data at each time point were included in the analysis.

ArmMeasureGroupValue (NUMBER)
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Time to Extubation and AwakeningExp w/ inh anesthesia (time to extubation; n=1010)-0.720 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Time to Extubation and AwakeningExp w/ inh anesthesia (time to awakening; n=1116)-0.415 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Time to Extubation and AwakeningExp w/ Sevorane (time to extubation; n=1010)-0.681 Spearman's correlation coefficient
Adults Requiring Anesthesia for SurgeryCorrelation Between Anesthesiologists' Clinical Experience and Time to Extubation and AwakeningExp w/ Sevorane (time to awakening; n=1116)-0.294 Spearman's correlation coefficient
Secondary

Creatine Kinase Myocardial Isoenzyme (if Available)

Creatine kinase myocardial isoenzyme values measured within 24 hours of anesthesia were to be collected when available.

Time frame: Within 24 hours after anesthesia

Population: No data were available for the creatine kinase myocardial isoenzyme outcome measure.

Secondary

Diastolic Blood Pressure

The diastolic blood pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.

Time frame: Before starting anesthesia to one hour after the surgery

Population: All participants with available data were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryDiastolic Blood PressureBefore anesthesia84.7 mm HgStandard Deviation 13.4
Adults Requiring Anesthesia for SurgeryDiastolic Blood PressureInduction anesthesia (after intubation)78.5 mm HgStandard Deviation 30.2
Adults Requiring Anesthesia for SurgeryDiastolic Blood PressureAfter surgical incision73.2 mm HgStandard Deviation 12.3
Adults Requiring Anesthesia for SurgeryDiastolic Blood PressureAfter extubation77.9 mm HgStandard Deviation 11.7
Adults Requiring Anesthesia for SurgeryDiastolic Blood PressureOne hour after surgery76.9 mm HgStandard Deviation 10.5
Secondary

Heart Rate

The heart rate of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.

Time frame: Before starting anesthesia to one hour after the surgery

Population: All participants with available data were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryHeart RateOne hour after surgery79.2 beats per minuteStandard Deviation 9
Adults Requiring Anesthesia for SurgeryHeart RateBefore anesthesia83.4 beats per minuteStandard Deviation 14.9
Adults Requiring Anesthesia for SurgeryHeart RateInduction anesthesia (after intubation)81.9 beats per minuteStandard Deviation 15
Adults Requiring Anesthesia for SurgeryHeart RateAfter surgical incision79.1 beats per minuteStandard Deviation 13.5
Adults Requiring Anesthesia for SurgeryHeart RateAfter extubation82.8 beats per minuteStandard Deviation 10.4
Secondary

Mean Arterial Pressure

The mean arterial pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.

Time frame: Before starting anesthesia to one hour after the surgery

Population: All participants with available data were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgeryMean Arterial PressureBefore anesthesia103.9 mm HgStandard Deviation 17.9
Adults Requiring Anesthesia for SurgeryMean Arterial PressureInduction anesthesia (after intubation)95.3 mm HgStandard Deviation 18
Adults Requiring Anesthesia for SurgeryMean Arterial PressureAfter surgical incision89.5 mm HgStandard Deviation 15
Adults Requiring Anesthesia for SurgeryMean Arterial PressureAfter extubation95.5 mm HgStandard Deviation 13
Adults Requiring Anesthesia for SurgeryMean Arterial PressureOne hour after surgery95.0 mm HgStandard Deviation 12.1
Secondary

Presence of Deviations in Electrocardiogram Assessments During Anesthesia

Electrocardiogram (ECG) assessments performed during induction of the anesthesia and maintenance were analyzed with respect to the presence of the following deviations: Blockades (problems with heart electrical activity), extrasystoles (extra abnormal heart beats), arrhythmia (abnormal heart rate or rhythm), and myocardial ischemia (decreased blood flow to the heart).

Time frame: During induction and maintenance of anesthesia

Population: All participants with valid data were included in the analysis.

ArmMeasureGroupValue (NUMBER)
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaBlockades (induction)9 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaBlockades (maintenance)12 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaExtrasystoles (induction)3 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaExtrasystoles (maintenance)10 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaArrhythmia (induction)8 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaArrhythmia (maintenance)21 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaMyocardial ischemia (induction)70 Participants
Adults Requiring Anesthesia for SurgeryPresence of Deviations in Electrocardiogram Assessments During AnesthesiaMyocardial ischemia (maintenance)74 Participants
Secondary

Systolic Blood Pressure

The systolic blood pressure of each patient was recorded at different time points from just before the start of anesthesia to one hour after the surgery concluded.

Time frame: Before starting anesthesia to one hour after the surgery

Population: All participants with available data were included in the analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Adults Requiring Anesthesia for SurgerySystolic Blood PressureBefore anesthesia137.5 mm HgStandard Deviation 23.9
Adults Requiring Anesthesia for SurgerySystolic Blood PressureInduction anesthesia (after intubation)125.3 mm HgStandard Deviation 22.3
Adults Requiring Anesthesia for SurgerySystolic Blood PressureAfter surgical incision117.6 mm HgStandard Deviation 17.8
Adults Requiring Anesthesia for SurgerySystolic Blood PressureAfter extubation125.5 mm HgStandard Deviation 14.1
Adults Requiring Anesthesia for SurgerySystolic Blood PressureOne hour after surgery124.2 mm HgStandard Deviation 12.5

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026