Elderly With Hip Fracture and Perioperative Hemoglobin and Perfusion Index Levels

Study Overview
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Brief Summary
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The overall aim of the study is to investigate the time difference in the diagnosing of anemia among elderly with hip fracture, between measurements with standard blood samples and non-invasive SpHb-measuring. Another aim is to investigate the relationship between perfusion index and prolong perioperative anemia and the potential impact on perioperative complications.

Detailed Description
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Immediately after admission and diagnosis of a hip fracture the patients will be monitored with Masimo SpHb. The Patients will be continuously measured until the third day after surgery. The Monitors Hb and PI data but not the SpO2% will be blinded to all participating healthcare personnel.The first three postopertive days the patiens will daily be examined to determined it they have developed delirium. All perioperativ complications in that period will be monitored.

Official Title
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Contionuous Perioperative Hemoglobin and Perfusion Index Measurements in Elderly Patients With Hip Fracture and Post Operative Delirium

Conditions
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Anemia, Delirium

Intervention / Treatment
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* Procedure: Surgery for hip fracture


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age ≥ 65 years Primary hip fracture requiring surgery Patients able to give informed consent Patients who are able to undergo the Hospitals standardized fast track Perioperative care regimen for hip fracture including are pre operative placed epidural Exclusion Criteria: Patients who can not co-operate to have a sensor attach to the finger continuous for 4 days. Patients who has allergy to the bandage that is used to attach the sensor.

Ages Eligible for Study
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Minimum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Elderly with hip fracture<br>The subjects are patients age ≥ 65 years requiring surgery for a hip fracture | Procedure: Surgery for hip fracture<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Delay in diagnosting perioperative anemia | Description of lag time between detection of anaemia by SpHb and Hb by blood sampling/transfusion | From admission up to and including the 3 postopertive day | 
| Perfusion index, periopertive anemia and delirium | The relation between average perioperative perfusion index, cumulated perioperative anemia over time and patient outcome in the form of medical complications, mortality, delirium and LOS. | From admission up to and including the 3 postopertive day | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Perfusion index as a predictor of early warning score (EWS) | Is there a relationship between low perfusion index an high EWS? | From admission up to and including the 3 postopertive day | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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postoperative anemia, perfusion index