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Initial experience ...
Initial experience with a thin single segment pressure and conductance catheter for measurement of left ventricular volume
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Carlsson, Camilla (author)
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- Söderqvist, Emil (author)
- KTH,KTH Syd
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Brodin, Lars-Åke (author)
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Källner, Göran (author)
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Hultman, Jan (author)
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Elmqvist, Håkan (author)
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Saha, Samir (author)
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(creator_code:org_t)
- 2001
- 2001
- English.
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In: Annual Reports of the Research Reactor Institute, Kyoto University. ; , s. 103-106
- Related links:
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http://ieeexplore.ie...
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https://urn.kb.se/re...
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Abstract
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- Aims: To evaluate a thin and soft multifunctionalcatheter for the simultaneous real time monitoring of leftventricular volume and pressure with special consideration toside elTects such as interference with normal cardiacelectrophysiology.Methods and results: In four pigs, pressure and volumewere simultaneously recorded by using the thin single segmentpressure and conductance catheter. Measurements were doneunder varied cardiac conditions: at baseline, during preloadreduction and afterload Increase. Volumes were calibrated withintracardiac ultrasound measurements. During preloadreduction the pressure and volume decreased as expected. Acautious afterload increase resulted in a corresponding pressureand volume increase, the maximum of the pressure curvechanged from early to late. Both SV and EDV increased. Thevery few arrhythmias were mainly caused by surgicalinterference.Conclusion: The present study demonstrates that our thinsingle segment conductance catheter for the simultaneousmeasurement of LV volume and pressure has a performancethat warrants further development with the goal to make themethod available for human use. In particular, the catheter didnot cause any arrhythmias.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
Keyword
- Left ventricular volume
- Conductance catheter
- segment volume
- Medical engineering
- Medicinsk teknik
Publication and Content Type
- ref (subject category)
- kon (subject category)
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