What is the Anesthesia Depth Monitor (BIS Monitor)?

The safety of patients during surgery is directly linked to the effectiveness and proper application of anesthesia. This is where the Anesthesia Depth Monitor, also known as the BIS Monitor (Bispectral Index Monitor), plays a crucial role. It is a vital device used to objectively assess the patient's level of consciousness during surgical procedures. Analyzing brain waves, this monitor measures how deeply the patient responds to anesthesia, reducing the risk of excessive anesthesia and helping to prevent insufficient anesthesia situations.

How Does the BIS Monitor Work?

The BIS monitor detects EEG (electroencephalogram) signals through electrodes placed on the patient's head. These signals are evaluated with the help of an algorithm, giving a score between 0 and 100.

• 100 indicates a fully conscious and awake state,

• Values between 40-60 generally represent the range suitable for surgical anesthesia.

Thanks to these values, the anesthesiologist can observe in real-time whether the patient is adequately sedated and adjust the dosage accordingly.

What Are the Benefits of the BIS Monitor?

• Patient Safety: Helps reduce the risk of excessive sedation and prevents postoperative complications.

• Drug Savings: Prevents unnecessary use of anesthetic substances.

• Faster Recovery Time: With the correct dosage of anesthesia, the patient wakes up faster and more comfortably.

• Reduced Awareness Risk: Minimizes the likelihood of the patient remaining conscious during surgery.

When is it Used?

The BIS monitor is particularly preferred in high-risk patients (elderly, those with serious systemic diseases) or during long and complex surgeries. In critical procedures such as heart surgery, brain surgery, and organ transplants, BIS monitoring provides more precise anesthesia management.

Conclusion: Intelligent Monitoring System in Modern Anesthesia

The Anesthesia Depth Monitor is a product of modern medicine’s patient safety-focused approach. By reducing the risk of awareness during surgery, it not only increases patient comfort but also provides valuable data to healthcare professionals. Healthcare institutions that use advanced technologies like the BIS monitor enhance the quality of patient care while fulfilling their ethical and economic responsibilities.

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