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Comparing during anesthesia in the same patient 2 neuromuscular monitors on the same arm.
NMT (neuromuscular transmission) depth can be measured at the same arm with two different methods during clinical practice.
the first (TOF Watch) measures the musculus adductor pollicis acceleration while the second method (TOF Cuff Monitor) uses a blood pressure cuff to measure the pressure changes induced by the upper arm muscles.
During general anesthesia when NMB (neuromuscular block) is required both methods are used. Every 5 minutes, if clinical required, the NMB is monitored by TOF-PTC. If the measurement of TOF is zero the monitor continues by measuring PTC ( the system will measure TOF followed by PTC if TOF is zero) TOF-PTC is recorded and later compared for identity or systematic difference in one or the other direction.
The measured answer can be TOF 4 (4 answers) with a ratio between answer 1 and 4 expressed and a percentage, TOF 3 (3 answers), TOF 2, TOF 1, TOF 0 + PTC 20, TOF 0 + PTC 19, up to TOF 0 + PTC 0
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| measuring neuromuscular block | Diagnostic Test | During anesthesia patients are monitored with two instead of one NMT monitor. the difference in measured TOF-PTC is compared |
| Measure | Description | Time Frame |
|---|---|---|
| TOF-PTC value | Difference in TOF-PTC measured by two different devices during anesthesia. | From induction of anesthesia (intubation with ETT) till end of anesthesia (extubation of ETT) most frequent between 1 and 2 hours, max 6 hours in duration |
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Inclusion Criteria: all patients scheduled for an elective surgery requiring neuromuscular block during anesthesia
Exclusion Criteria: not possible to measure NMT (neuromuscular transmission) by cuff or thumb monitor
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all patients undergo a laparoscopic surgery and require a deep NMB.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Jan Paul Mulier, PhD | Contact | 003259452490 | jan.mulier@azsintjan.be | |
| Kris Leleu, MD | Contact | 003250452490 |
| Name | Affiliation | Role |
|---|---|---|
| Jan Paul Mulier | AZSint Jan AV | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Azsintjan | Bruges | 8000 | Belgium |
|
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