Record and Analyze the Data of Patient Undergoing Anesthesia for Laparoscopic Cholecystectomy From Patient Monitoring Instruments

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-09-30

Study Completion Date

2018-11-30

Brief Summary

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To record the digital data from monitoring instruments (standard patient monitor) containing cardiovascular system information, and from depth-of-anesthesia monitoring modules (Bispectral index, Entropy module, Surgical Plethysmography Index, Analgesia Nociception Index) containing neurological system information captured in the patient monitor, as well as the physiological data regarding anesthetic dosage, respiratory gas analysis and the standard monitoring requirement of anesthesia. The investigators also record the precise time points of detail surgical steps during the laparoscopic cholecystectomy. Clinical data collected from these monitoring instrument will be used to gain more understanding of the complex interaction between anesthetic effect, surgical procedure, autonomic response and drug modeling. The goal is to obtain the performance of each monitoring index in detail surgical steps.

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Detailed Description

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The dynamic interaction between surgery and anesthesia is closely monitored by the anesthesiologist using various monitoring instruments in the operating room. However, it requires the recording and collecting the data for further analysis to answer the question that what is the exact effects of the surgical procedure to human body. In particular, the measurement performance of transient bradycardia calculated from electrocardiography and the monitoring indices such as Surgical Plethysmography Index, Analgesia Nociception Index should be compared side-by-side using data from the same subject.

In this prospective observational study, the investigators will enroll 40 patients undergoing elective laparoscopic surgery. Anesthetic management and surgery will be performed as usual clinical practice.

The investigators will record the digital data exported from monitoring instruments, including cardiovascular system information (electrocardiography, photo-plethysmography , blood pressure and any additional monitoring items clinically required), neurological system information (Bispectral index, Entropy, Surgical Plethysmography Index ) and the respiratory gas monitoring (gas analyzer, respiratory waveform). All above data are provided by standard patient monitor (CARESCAPE Monitor B850, GE Healthcare). Analgesia Nociception Index are provides by Analgesia Nociception Index monitoring instruments (Mdoloris(TM) Medical Systems).

The detailed surgical steps will be noted with precise time stamps to pinpoint the surgical effects afterwards. Registered events including anesthetic induction, intubation, disinfection, each skin incision, peritoneum perforation, laparoscopic trocar insertion, dissection, ligation and excision of cystic duct and vessel, electrocauterization, and extraction of specimen. The recording is ended before the end of monitoring in the operating room. All physiological data and demographic data will be stored in digital media after being de-linked from personal identification.

Data analysis and Statistics will be particularly performed to explore the temporal effect and relationship. Methods including modeling, windowing and non-parametric spectral estimation will be used.

Conditions

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Anesthesia and Analgesia Laparoscopic Surgical Procedure Monitoring, Physiologic Hemodynamic Monitoring Intraoperative Neurophysiological Monitoring

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* patients agree and plan to undergo elective laparoscopic cholecystectomy surgery for medical issues such as cholecystitis, gall bladder tumor or gall stone.

Exclusion Criteria

* major cardiac problems
* uncontrolled hypertension
* arrhythmia shown in pre-operative ECG
* major neurological disease
* vulnerable populations per institutional regulation, including under-age, history of drug abuse, HIV carrier, AIDS, aborigine, prisoner.
* anticipated difficult airways

Minimum Eligible Age

20 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No