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This study investigates the correlation between noninvasive hemoglobin monitoring (SpHb) and invasive hemoglobin measurement (InvHb) in guiding blood transfusions during thoracic surgeries.
Methods: A non-interventional design was used to evaluate the relationship between SpHb and InvHb readings in the context of transfusion decisions. Data were obtained from 80 patients aged 18 years or older undergoing thoracic procedures. Continuous SpHb monitoring was performed, and concurrent InvHb samples were collected for comparison. The primary endpoint was the degree of correlation between SpHb and InvHb values.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| continuous noninvasive hemoglobin monitoring | Diagnostic Test | noninvasive hemoglobin monitoring, Rainbow® Adult ReSposable™ sensors (Rev E) were placed on either the ring or middle fingertip of each participant and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corp., Irvine, CA). |
| Measure | Description | Time Frame |
|---|---|---|
| the correlation between continuous hemoglobin and inasive hemoglubin at the preoperative period | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
| the correlation between continuous hemoglobin and inasive hemoglubin 1 hour after start of surgery | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
| the correlation between continuous hemoglobin and inasive hemoglubin 2 hours after start of surgery | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
| the correlation between continuous hemoglobin and inasive hemoglubin 3 hours after start of surgery | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
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Inclusion Criteria:
Exclusion Criteria:
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All patients were monitored using ASA standard monitors, along with invasive arterial and/or central venous monitoring as part of their standard care.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ministry of health | Jeddah | Mekkah | 31511 | Saudi Arabia |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26654895 | Background | Joseph B, Haider A, Rhee P. Non-invasive hemoglobin monitoring. Int J Surg. 2016 Sep;33(Pt B):254-257. doi: 10.1016/j.ijsu.2015.11.048. Epub 2015 Nov 30. |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot | Yes | No | No | Study Protocol | Jul 13, 2024 | Aug 13, 2025 | Prot_000.pdf |
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| the correlation between continuous hemoglobin and inasive hemoglubin 4 hours after start of surgery | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
| the correlation between continuous hemoglobin and inasive hemoglubin at the end of surgery | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |
| the correlation between continuous hemoglobin and inasive hemoglubin after recovery of the patient | continuous hemoglobin % monitoring, Rainbow adult ReSposable™ sensors (rev E) were attached to the ring or middle fingertip of each subject and connected to a Radical-7 Pulse CO-Oximeter (SET version 7601; Masimo Corporation, Irvine, CA). invasive hemoglubin % monitoring, Blood samples were collected and analyzed using a satellite blood analyzer (Gem Premier 4000) | 6 Hours |