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This prospective, single-center observational study aims to evaluate the measurement performance of oscillometric arterial pressure measurements at different limb sites. Specifically, oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg with intraarterial arterial pressure measurements will be compared in non-cardiac surgery patients.
The results will provide insight into the reliability and accuracy of oscillometric blood pressure readings at alternative limb sites in clinical practice.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Postoperative patients with intraarterial arterial catheter |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Arterial pressure monitoring | Other | We will perform oscillometric arterial pressure measurements at different limb sites. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Agreement between oscillometric and intraarterial arterial pressure measurements | Mean ± standard deviation of the differences with 95% limits of agreement between oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg and intraarterial arterial pressure measurements (for mean, systolic, and diastolic arterial pressure). | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |
| Measure | Description | Time Frame |
|---|---|---|
| Correlation coefficients | Correlation coefficients between oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg and intraarterial arterial pressure measurements (for mean, systolic, and diastolic arterial pressure). | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of measurement failures | Incidence of measurement failures of oscillometric arterial pressure monitoring at the upper arm, forearm, thigh, and lower leg defined as any instance in which the device fails to display an arterial pressure reading or shows an error message | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |
Inclusion criteria:
Exclusion criteria:
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The CUFF-SITE study is a single-center prospective method comparison study conducted at the University Medical Center Hamburg-Eppendorf, Hamburg, Germany. A total of 84 patients scheduled for non-cardiac surgery with general anesthesia in whom intraarterial arterial pressure monitoring with a radial artery catheter is planned will be included.
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| Name | Affiliation | Role |
|---|---|---|
| Alina Bergholz, MD | University Medical Centre Hamburg-Eppendorf | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Medical Center Hamburg-Eppendorf | Hamburg | Germany | Germany |
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| Classification of measurement differences | Classification of measurement differences between oscillometric arterial pressure monitoring at the upper arm, forearm, thigh, and lower leg and intraarterial arterial pressure monitoring according to their clinical relevance (for mean and systolic arterial pressure) | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |
| Percentage of oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg that are within ±5 mmHg of the corresponding intraarterial arterial pressure measurements | Percentage of oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg that are within ±5 mmHg of the corresponding intraarterial arterial pressure measurements (for mean, systolic, and diastolic arterial pressure) | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |
| Cross-comparisons | Mean ± standard deviation of the differences with 95% limits of agreement between oscillometric arterial pressure measurements obtained at the upper arm, forearm, thigh, and lower leg (for mean, systolic, and diastolic arterial pressure) | Immediate postoperative period, typically within a few hours after surgery (and in all cases within the first 24 postoperative hours) |