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Evidence-based perspectives on recovery, stewardship, and workflow efficiency.

 
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History of Train-of-Four (TOF)

History of Train-of-Four (TOF)

Quantitative TOF monitoring of neuromuscular blockade plays a crucial role in modern anesthesia practice and continues to improve patient care.

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Frequently Asked Questions :

Why do I need quantitative monitoring if I already use sugammadex?

Even with 100% sugammadex use, the incidence of residual paralysis rates remains as high as 10% without quantitative monitoring2

Isn’t qualitative monitoring or clinical assessment enough?

No. Clinical tests such as head lift or hand grip cannot detect residual block above TOF ratios of 0.4. Only quantitative monitoring confirms TOF ≥0.9, the threshold for safe recovery5

How does TwitchView improve patient safety?
Residual paralysis increases risk of airway obstruction, hypoxemia, and postoperative pulmonary complications. A landmark study using quantitative monitoring with the TwitchView Train Of Four Monitor eliminated residual paralysis4
Do I need to monitor every patient, or just high-risk cases?

Residual paralysis increases risk of airway obstruction, hypoxemia, and postoperative pulmonary complications. A landmark study using quantitative monitoring with the TwitchView Train Of Four Monitor eliminated residual paralysis5

How accurate is TwitchView compared to other monitors?
TwitchView’s EMG technology correlates closely with the gold standard mechanomyography (MMG)6,7. In contrast, acceleromyography tends to overestimate recovery6, while other EMG monitors may underdetect twitches10 or misinterpret electrical signals as noise11
How durable is the hardware?

The TwitchView TOF Monitor is meticulously designed with robust cables, durable screens, rugged design— all backed by a market-leading warranty in the U.S.

Can TwitchView be used in all types of cases and patient populations?

Yes. Electrode arrays are available for infants, children, and adults. A key advantage of EMG monitoring is that it works even when patients’ hands are tucked.

How does TwitchView deal with OR electrical noise?

Active noise canceling eliminates noise at the source, ensuring even the tiniest twitches are accurately captured.

Will TwitchView integrate with my existing anesthesia record or EHR system?

Yes. TwitchView connects with most anesthesia information systems and EHRs, automatically exporting data to the patient record.

What is the benefit for hospitals?

Quantitative monitoring reduces postoperative complications, shortens recovery times, and lowers readmission risk. Preventing even a few pulmonary complications offsets the cost of monitoring3. In addition, many institutions see substantially reduced drug costs. Beyond savings, hospitals gain improved outcomes, increased provider confidence, and compliance with the 2023 American Society of Anesthesiologists (ASA) Guidelines for Monitoring and Antagonism of Neuromuscular Blockade5 and the 2023 European Society of Anaesthesiology and Intensive Care (ESAIC) Guidelines for Perioperative Management of Neuromuscular Blockade12.

Residual paralysis stops here.

Answer a few quick questions, and we’ll prepare a customized report showing how much your hospital could save by reducing residual paralysis and optimizing reversal drug use. See your potential impact in dollars, tailored to your institution.