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Left atrial pressure monitoring with an implantable wireless pressure sensor following implantation of a left ventricular assist device
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Cardiology in Linköping.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Clinical Physiology in Linköping.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Thoracic and Vascular Surgery.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Thoracic and Vascular Surgery.
2017 (English)In: ASAIO journal (1992), ISSN 1058-2916, E-ISSN 1538-943XArticle in journal (Refereed) Published
Abstract [en]

Following implantation of a continuous-flow left ventricular assist device (LVAD), left atrial pressure (LAP) monitoring allows for precise management of intravascular volume, inotropic therapy and pump speed. In this case series of 4 LVAD recipients we report the first clinical use of this wireless pressure sensor for long-term monitoring of LAP during LVAD support. A wireless microelectromechanical system (MEMS) pressure sensor, (Titan™, ISS Inc., Ypsilanti, MI, USA) was placed in the left atrium in four patients at the time of LVAD implantation. Titan sensor LAP was measured in all 4 patients on the ICU and in 3 patients at home. Ramped speed tests were performed using LAP and echocardiography in 3 patients. The left ventricular end diastolic diameter (cm), flow (L/min), power consumption (W) and blood pressure (mmHg) were measured at each step.Measurements were performed over 36, 84, 137, and 180 days, respectively. The three discharged patients had equipment at home and were able to perform daily recordings. There were significant correlations between sensor pressure and pump speed, LV and LA size and pulmonary capillary wedge pressure, respectively (r= 0.92-0.99, p < 0.05). There was no device failure and there were no adverse consequences of its use.

Place, publisher, year, edition, pages
2017.
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-135456DOI: 10.1097/MAT.0000000000000451OAI: oai:DiVA.org:liu-135456DiVA: diva2:1081862
Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-03-22

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Hubbert, LailaBaranowski, JacekDelshad, BazAhn, Henrik
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Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Cardiology in LinköpingDepartment of Clinical Physiology in LinköpingDepartment of Thoracic and Vascular Surgery
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ASAIO journal (1992)
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