Anesthesia Induction Scheme for Painless Gastrointestinal Endoscopy Patients Based on Nociceptive Stimulation Monitoring

Min Su220 enrolled

Overview

Nociception is the encoding and processing of noxious stimulation and is considered an objective indicator for monitoring pain. Currently, a new clinically-applied medical-engineering integrated monitoring device for noxious stimulation response has emerged. Its fundamental principle is based on the monitoring of electroencephalographic (EEG) activity, incorporating two monitoring parameters: the quantitative consciousness (qCON) index and the quantitative nociceptive (qNOX) index. However, in the context of sedation for gastrointestinal endoscopy, how the dynamic changes of the quantitative consciousness index (qCON) and the quantitative nociception index (qNOX) reflect the depth of sedation and nociceptive response remains unclear. Safe and effective sedation monitoring includes both direct visual monitoring and physiological monitoring, that is, monitoring the patient's hemodynamics and depth of sedation. This study utilizes qCON and qNOX monitoring to assess the sedation and analgesic states of patients undergoing painless gastroenterological endoscopy. By combining visual assessment (cough reflex, respiratory depression, and limb movement) with clinical physiological monitoring (vital signs monitoring and pulse oximetry), the aim is to explore the optimal sedation range for gastrointestinal endoscopy under sedation, providing new anesthesia monitoring tools for clinical use.

This is a single-center, prospective, observational clinical study. Study Objective: To explore the optimal sedation quality for painless gastrointestinal endoscopy. Study Protocol: A total of 220 patients undergoing painless gastrointestinal endoscopy were selected, with 110 patients undergoing gastroscopy and 110 patients undergoing colonoscopy. The bispectral index monitor (Apollo-9000A) was used to monitor the qCON and qNOX values of patients during the painless gastrointestinal endoscopy. The changes in qCON, qNOX, SBP (systolic blood pressure), DBP (diastolic blood pressure), MAP (mean arterial pressure), HR (heart rate), SpO2 (peripheral capillary oxygen saturation), and MOAA/S (Modified Observer's Assessment of Alertness/Sedation) scores at different time points during gastroscopy and colonoscopy were observed and recorded. The occurrence of adverse events during and after the examinations was also documented.

Study Type

OBSERVATIONAL

Enrollment

220

Interventions

EEG monitoringDEVICE

During gastrointestinal endoscopy, electroencephalogram (EEG) monitoring will be conducted using qCON and qNOX technologies to assess patients\&amp;#39; sedation and analgesia status while they undergo painless gastrointestinal endoscopy. This will be combined with visual assessments (such as cough reflex, respiratory depression, and limb movement) and clinical physiological monitoring (including vital signs and pulse oximetry) to explore and establish a stable and optimal depth of sedation for anesthesia.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Aged 18-60 years old; 2. American Society of Anesthesiologists (ASA) Class I-III; 3. Body mass index (BMI): 18-30 kg/m\^2; 4. Individuals scheduled for elective gastroscopy and colonoscopy examinations; 5. Willing to comply with the experimental procedures and voluntarily sign the informed consent form Exclusion Criteria: 1. Pregnant or breastfeeding women; 2. Individuals with allergies to sedatives/anesthetic drugs or other severe anesthetic risks; 3. Patients with chronic preoperative pain or a history of substance abuse; 4. Individuals with severe neurological diseases, such as stroke, hemiplegia, seizures, epilepsy, etc.; 5. Patients with clearly difficult airways, such as those with limited mouth opening, neck or jaw mobility restrictions, rheumatoid arthritis, or temporomandibular joint disorders; 6. Individuals with respiratory diseases, such as bronchitis, asthma, chronic obstructive pulmonary disease, or acute respiratory infections, which may lead to increased airway sensitivity; 7. Patients with chronic pharyngitis, laryngitis, laryngeal edema, or recurrent laryngeal nerve paralysis that may affect normal throat function; 8. Individuals with esophagitis, esophageal strictures, or esophageal motility disorders that may cause difficulty swallowing or reflux; 9. Patients with poorly controlled life-threatening cardiovascular diseases, such as uncontrolled severe hypertension, severe arrhythmias, or unstable angina; 10.10.Patients with liver dysfunction (Child-Pugh grade C or above), acute upper gastrointestinal bleeding with shock, severe anemia, or gastrointestinal obstruction with retained gastric contents.

Outcomes

Primary Outcomes

Anesthesia quality

The quality of anesthesia and sedation during gastroscopy through the throat or colonoscopy through the anus (criteria: HR and SBP fluctuations within 10%; no movement or coughing response)

Time frame: during the procedure

Secondary Outcomes

The values of qCON 、 qNOX、MAP、HR、SPO2 、and MOAA/S at different time points

The Values of qCON 、 qNOX、MAP、HR、SPO2 and MOAA/S at different time points during gastroscopy and enteroscopy ① Time points for gastroscopy: Baseline value (T0), Loss of consciousness (T1), Before insertion of the gastroscope (T2), Passage of the gastroscope through the pharynx (T3), After insertion of the gastroscope (T4), Withdrawal of the gastroscope to the pharynx (T5), Examination completion (T6), Admission to recovery room (T7), Awakening (T8), Discharge from recovery room (T9). ② Time points for colonoscopy: Baseline value (T0), Loss of consciousness (T1), Before insertion of the colonoscope (T2), After insertion of the colonoscope into the anus (S3), Descending colon (T4), Splenic flexure (T5), Hepatic flexure (T6), Examination completion (T7), Admission to recovery room (T8), Awakening (T9), Discharge from recovery room (T10).

Time frame: during the procedure

The values of qCON 、 qNOX、MAP、HR、SPO2 under special events

During gastroscopy and colonoscopy , the values of qCON 、 qNOX、MAP、HR、SPO2 are recorded when coughing, body movement, polypectomy, or biopsy occur.

Time frame: during the procedure

Adverse event

Adverse events during gastroscopy and enteroscopy were recorded, including hypotension, hypertension, tachycardia, bradycardia, respiratory depression, hypoxemia, cough, body movement, nausea, vomiting, hiccup, injection pain, abdominal pain, abdominal distension, reflux aspiration.

Time frame: during the procedure

Adverse events and complications after examination

Bleeding, dizziness, blurred vision, nausea, vomiting, abdominal pain, abdominal distension were followed up 24h after the examination

Time frame: 24 hours after procedure

Anesthesia Induction Scheme for Painless Gastrointestinal Endoscopy Patients Based on Nociceptive Stimulation Monitoring

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts