Clinical Trials Logo
  1. Home
  2. Trauma
  3. NCT01210417

Trauma Heart to Arm Time — THAT  

Trauma Clinical Trial

Clinical Trial Summary

In the prehospital setting it would be helpful to assess primary changes in central blood volume or preload (venous return, stroke volume, diastolic ventricular volume) that occur during the stability phase following injury when regulatory mechanisms are still functioning.

Obviously in this setting a non invasive bedside beat-to-beat index would be helpful.

Pulse Transit Time (PTT) is the sum of Pre-Ejection Period (PEP), the time interval between the onset of ventricular depolarization and the ventricular ejection, and Vascular Transit Time (VTT), the time it takes for the pulse wave to travel from the aortic valve to the peripheral arteries (Obrist et al. 1979). PEP variations are known to correlate with reductions in central blood volume induced by head-up tilt (Chan et al., 2007b, 2008). The same authors also demonstrated that PTT variations follow closely PEP variations and therefore central blood volume variations (Chan et al., 2007b). Following central blood volume reductions induced by head-up tilting ventricular diastolic filling time increases involving an increase in PEP and PTT. Chan et al. (Chan et al., 2007b) concluded that PTT could have been used to assess early central hypovolemia and suggested that joint analysis of PTT and RR intervals could help in predicting the extent of blood volume loss. The investigators hypothesized that sympathetic drive associated with trauma would act on cardiac contractility through beta activity thus shortening PTT without reducing RR interval to the same extent in healthy hearts. We also hypothesized that progressive hypovolemia would lead to a rising of PTT (augmented diastolic filling time) and a RR interval shortening (relative tachycardia). In this study the investigators propose and index based on the beat-to-beat PTT/RR ratio to assess central hypovolemia in traumatic patients enrolled by our Helicopter Emergency Medical System (HEMS) in a prehospital setting.

Clinical Trial Description

n/a

Study Design

Observational Model: Case-Only, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01210417
Study type Observational
Source Niguarda Hospital
Contact
Status Completed
Phase N/A
Start date September 2010
Completion date May 2011
View Details
See also
  Status Clinical Trial Phase
Recruiting NCT04848376 - Post-Market Clinical Follow-up Study of A-SPINE's Products
Terminated NCT03781817 - Intranasal Versus Intravenous Ketamine for Procedural Sedation in Children With Non-operative Fractures Phase 4
Completed NCT04342416 - Using a Brief Visuospatial Interference Intervention to Reduce Intrusive Memories Among Trauma Exposed Women N/A
Recruiting NCT04856449 - DBT Skills Plus EMDR for BPD and Trauma N/A
Completed NCT04356963 - Adjunct VR Pain Management in Acute Brain Injury N/A
Completed NCT05669313 - The Effects of Hypothermia and Acidosis on Coagulation During Treatment With Rivaroxaban Measured With ROTEM
Active, not recruiting NCT03622632 - Pilot Study to Measure Uric Acid in Traumatized Patients: Determinants and Prognostic Association
Recruiting NCT04725721 - Testing FIRST in Youth Outpatient Psychotherapy N/A
Active, not recruiting NCT05530642 - An Augmented Training Program for Preventing Post-Traumatic Stress Injuries Among Diverse Public Safety Personnel N/A
Not yet recruiting NCT05649891 - Checklists Resuscitation Emergency Department N/A
Not yet recruiting NCT03696563 - FreeO2 PreHospital - Automated Oxygen Titration vs Manual Titration According to the BLS-PCS N/A
Withdrawn NCT03249129 - Identification of Autoantibodies and Autoantigens in the Cerebrospinal Fluid of Patients With Spinal Cord Trauma
Completed NCT02240732 - Surgical Tourniquets and Cerebral Emboli N/A
Completed NCT02227979 - Effects of PURPLE Cry Intervention N/A
Withdrawn NCT01169025 - Fentanyl vs. Low-Dose Ketamine for the Relief of Moderate to Severe Pain in Aeromedical Patients N/A
Recruiting NCT01812941 - Evaluation of Mitochondrial Dysfunction in Severe Burn and Trauma Patients N/A
Completed NCT01475344 - Fibrinogen Concentrate (FGTW) in Trauma Patients, Presumed to Bleed (FI in TIC) Phase 1/Phase 2
Completed NCT03112304 - Child STEPS for Youth Mental Health in Maine Sustainability N/A
Completed NCT01201863 - Neuroendocrine Dysfunction in Traumatic Brain Injury: Effects of Testosterone Therapy Phase 4
Completed NCT01426711 - Critical Care Excellence in Sepsis and Trauma