| Does a Simple Bedside Sonographic Measurement of the Inferior Vena Cava Correlate to Central Venous Pressure? | |
| | |
MedLine Citation:
|
PMID: 22197199 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND: Bedside ultrasound has been suggested as a non-invasive modality to estimate central venous pressure (CVP). OBJECTIVE: Evaluate a simple bedside ultrasound technique to measure the diameter of the inferior vena cava (IVC) and correlate to simultaneously measured CVP. Secondary comparisons include anatomic location, probe orientation, and phase of respiration. METHODS: An unblinded prospective observation study was performed in an emergency department and critical care unit. Subjects were a convenience sample of adult patients with a central line at the superior venocaval-atrial junction. Ultrasound measured transverse and longitudinal diameters of the IVC at the subxiphoid, suprailiac, and mid-abdomen, each measured at end-inspiration and end-expiration. Correlation and regression analysis were used to relate CVP and IVC diameters. RESULTS: There were 72 subjects with a mean age of 67 years (range 21-94 years), 37 (53%) male, enrolled over 9 months. Seven subjects were excluded for tricuspid valvulopathy. Primary diagnoses were: respiratory failure 12 (18%), sepsis 11 (17%), and pancreatitis 3 (5%). There were 28 (43%) patients mechanically ventilated. Adequate measurements were obtainable in 57 (89%) using the subxiphoid, in 44 (68%) using the mid-abdomen, and in 28 (43%) using the suprailiac views. The correlation coefficients were statistically significant at 0.49 (95% confidence interval [CI] 0.26-0.66), 0.51 (95% CI 0.23-0.71), and 0.50 (95% CI 0.14-0.74) for end-inspiratory longitudinal subxiphoid, midpoint, and suprailiac views, respectively. Transverse values were statistically significant at 0.42 (95% CI 0.18-0.61), 0.38 (95% CI 0.09-0.61), and 0.67 (95% CI 0.40-0.84), respectively. End-expiratory measurements gave similar or slightly less significant values. CONCLUSION: The subxiphoid was the most reliably viewed of the three anatomic locations; however, the suprailiac view produced superior correlations to the CVP. Longitudinal views generally outperformed transverse views. A simple ultrasound measure of the IVC yields weak correlation to the CVP. |
| | |
Authors:
|
Robert A De Lorenzo; Michael J Morris; Justin B Williams; Timothy F Haley; Timothy M Straight; Victoria L Holbrook-Emmons; Juanita S Medina |
Related Documents
:
|
3174409 - Energy cost of walking with flat feet. 12548029 - Usefulness of helium-oxygen mixtures in the treatment of mechanically ventilated patients. 9576019 - Lung diffusion estimated by oxygen and carbon monoxide. 20234979 - pathophysiology of cataract formation after vitrectomy 3933979 - Brain metabolism in deep controlled hypotension in neurosurgical patients. 17016239 - Measurement of intracerebral oxygen pressure: practicalities and pitfalls. 15106809 - Increased renovascular response to angiotensin ii in persons genetically predisposed to... 15362779 - Clinical experience of transjugular intrahepatic portosystemic shunt (tips) and its eff... 3288129 - Exposure assessment: input into risk assessment. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-12-22 |
Journal Detail:
|
Title: The Journal of emergency medicine Volume: - ISSN: 0736-4679 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
|
Created Date: 2011-12-26 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8412174 Medline TA: J Emerg Med Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Published by Elsevier Inc. |
Affiliation:
|
Department of Clinical Investigation, Brooke Army Medical Center, Fort Sam Houston, Texas; Department of Emergency Medicine, Brooke Army Medical Center, Fort Sam Houston, Texas; Masters Degree Program in Clinical Investigation, University of Texas Health Sciences Center at San Antonio, San Antonio, Texas. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Medical Reconciliation in Patients Discharged from the Emergency Department.
Next Document: Memory rehabilitation and brain training for surgical temporal lobe epilepsy patients: A preliminary...