Compression sonography for non-invasive measurement of lower leg compartment pressure in an animal model

Bloch, Andreas; Tomaschett, Corina; Jakob, Stephan M.; Schwinghammer, Andreas; Schmid, Timo

doi:10.1016/j.injury.2017.11.036

Cited by 16 publications

(20 citation statements)

References 23 publications

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“…This technique was recently examined using the Veinpress 2014 system (Veinpress GmbH, 3110 Münsingen, Switzerland) as shown in Fig. 9 [24] (available for research purposes only). The system consists of an elastic silicone membrane filled with a fluid substance, translucent to ultrasound waves, and coupled to a manometer.…”

Section: Ultrasound Tonometrymentioning

confidence: 99%

“…There are multiple approaches to measuring compartment pressure using ultrasound tonometry, however, this proposed approach is based on the research of Bloch et al [24]. First, the elasticity ratio (ER) is calculated, which is the ratio of the compartment diameter with and without applying pressure.…”

Section: Ultrasound Tonometrymentioning

confidence: 99%

“…Thus the most accurate differentiation of the intra-compartmental pressure (ICP) steps were achieved at 40 mmHg (see Fig. 11 [24]).…”

Section: Ultrasound Tonometrymentioning

confidence: 99%

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A concise overview of non-invasive intra-abdominal pressure measurement techniques: from bench to bedside

Tayebi

Gutiérrez

Mohout

et al. 2020

J Clin Monit Comput

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This review presents an overview of previously reported non-invasive intra-abdominal pressure (IAP) measurement techniques. Each section covers the basic physical principles and methodology of the various measurement techniques, the experimental results, and the advantages and disadvantages of each method. The most promising non-invasive methods for IAP measurement are microwave reflectometry and ultrasound assessment, in combination with an applied external force.

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Section: Ultrasound Tonometrymentioning

confidence: 99%

Section: Ultrasound Tonometrymentioning

confidence: 99%

See 1 more Smart Citation

A concise overview of non-invasive intra-abdominal pressure measurement techniques: from bench to bedside

Tayebi

Gutiérrez

Mohout

et al. 2020

J Clin Monit Comput

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show abstract

“…In compliance with the three R principle, the same group of pigs were subject to three different, unrelated studies, all involving ultrasound. First, a study investigating muscle compartment pressure in both lower legs was conducted [11]. After a stabilisation phase and establishment of a second baseline, a study on abdominal pressure was obtained [12].…”

Section: Methodsmentioning

confidence: 99%

“…Pigs were chosen because of their size which allowed instrumentation similar to that in humans. Animal preparation was described in detail previously [11][12][13]. In brief, 8 domestic pigs (weight 39±2kg (mean±SD)) were anesthetized using 20mg/kg ketamine and 2mg/kg xylazine intramuscularly.…”

Section: Animal Preparationmentioning

confidence: 99%

Correlation of optic nerve and optic nerve sheath diameter with intracranial pressure in pigs

et al. 2020

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ObjectiveSeveral studies have shown an association between intracranial pressure and the diameter of the optic nerve sheath measured by transbulbar ultrasonography. To understand the pathophysiology of this phenomenon, we aimed to measure the changes of the optic nerve, optic nerve sheath and perineural space separately with increasing intracranial pressure in a porcine model. MethodsAn external ventricular drain was placed into the third ventricle through a right paramedian burrhole in eight anesthesized pigs. The diameters of the optic nerve and the optic nerve sheath were measured while the intracranial pressure (ICP) was increased in steps of 10mmHg from baseline up to 60 mmHg. ResultsThe median diameters of the optic nerve (ON) increased from 0.36 cm (baseline-95% confidence interval (CI) 0.33 cm to 0.45 cm) to 0.68 cm (95% CI 0.57 cm to 0.82 cm) at ICP of 60 mmHg (p<0.0001) and optic nerve sheath (ONS) from 0.88 cm (95% CI 0.79 cm to 0.98 cm) to 1.24 cm (95% CI 1.02 cm to 1.38 cm) (p< 0.002) while the median diameter of the perineural space (PNS) (baseline diameter 95% CI 0.40 cm to 0.59 cm to diameters at ICP 60 95% CI 0.38 cm to 0.62 cm) did not change significantly (p = 0.399). Multiple comparisons allowed differentiation between baseline and values �40 mmHg for ON (p = 0.017) and between baseline and values � 50mmHg for ONS (p = 0.006). A linear correlation between ON (R 2 = 0.513, p<0.0001) and ONS (R 2 = 0.364, p<0.0001) with ICP was found. The median coefficient of variation for intra-and inter-investigator variability was 8% respectively 2.3%.

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Future Directions

Dorigatti¹,

Fraga²

2020

Compartment Syndrome

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Compression sonography for non-invasive measurement of lower leg compartment pressure in an animal model

Cited by 16 publications

References 23 publications

A concise overview of non-invasive intra-abdominal pressure measurement techniques: from bench to bedside

A concise overview of non-invasive intra-abdominal pressure measurement techniques: from bench to bedside

Correlation of optic nerve and optic nerve sheath diameter with intracranial pressure in pigs

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