Soft Tissue and Bone Diameter in Children and Adults for Intraosseus Access

Study Overview
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Brief Summary
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Retrospective observational study: Soft tissue and bone diameters are assessed in MRI and CT scans of patients. Data is compared with recommendations of intraosseus needle producers to assess whether the information provided by the producers can be optimised. Study sites are head of humerus bone, distal femur, proximal and distal tibia in accordance with recommended intraosseus access sites. Primary and secondary outcome parameters will be assessed at one time only, i.e. when the patient has received MRI or CT scan for the diagnostic work up of their primary disease. Data collection for a given patient in this study can be completed within one session, e.g. 5-10 minutes. No additional investigation is required for this retrospective study.

Detailed Description
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Retrospective observational single centre study: Soft tissue and bone diameters are assessed in MRI and CT scans of patients. Data is compared with recommendations of intraosseus needle producers to assess whether the information provided by the producers can be optimised. Study sites are head of humerus bone, distal femur, proximal and distal tibia in accordance with recommended intraosseus access sites. Data is gathered from patients who undergo either MRI or CT scanning for any disease and where bone at the IO puncture site is accessible for measurements required for this study. Primary and secondary outcome parameters will be assessed at one time only, i.e. when the patient has received MRI or CT scan for the diagnostic work up of their primary disease. Data collection for a given patient in this study can be completed within one session, e.g. 5-10 minutes. No additional investigation is required for this

Official Title
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Assessment of Soft Tissue and Bone Diameter for Intraosseus Access in Children and Adults

Conditions
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Emergencies, Infusion Site Injury, Bone Infection

Intervention / Treatment
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* Other: CT or MRI scan


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients 0-90 years of age with elective or emergency MRI or CT scan within a 24 months period at the university hospital Innsbruck, Austria. Patients in analgosedation, anaesthesia, and stand-by Exclusion Criteria: Pathologies at recommended intraosseus puncture - and investigation- site, i.e. proximal humerus, distal femur, proximal and distal tibia

Ages Eligible for Study
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Minimum Age: 0 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Children<br>Younger 18 years: Newborns, infants, small child, school child, teens | Other: CT or MRI scan<br>* CT or MRI performed for underlying disease. CT and MRI scans used to asses bone and soft tissue diameter<br>|
| Adults<br>Even or older 18 years | Other: CT or MRI scan<br>* CT or MRI performed for underlying disease. CT and MRI scans used to asses bone and soft tissue diameter<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Soft tissue diameter | CT or MRI performed for underlying disease. Diameter of soft tissue at the site of recommended intraosseus bone access | Retrospective single time measurement on MRI or CT scan. Measurement will last approx. 10 minutes, an will happen only once | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Bone tissue diameter | CT or MRI performed for underlying disease. Diameter of bone cortical and spongiosa at the site of recommended intraosseus bone access | Retrospective single time measurement on MRI or CT scan.Measurement will last approx. 10 minutes, an will happen only once | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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bone access, intraosseus needle, resuscitation, infusion, volume therapy, emergency