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Evaluation eines neuartigen kapazitiven EKG-Systems bei Patienten mit akutem ST-Hebungs-Myokardinfarkt

First clinical evaluation of a novel capacitive ECG system in patients with acute myocardial infarction

Weil, Mareike Bianca
Dissertation
Angenommen am: 2013-12-11
Erschienen: 2013-12-02
Betreuer: Maier, Lars S. Prof. Dr.
Gutachter: Paul, Thomas Prof. Dr.
Gutachter: Crozier, Thomas Prof. Dr. Dr.

Zum Verlinken/Zitieren: http://hdl.handle.net/11858/00-1735-0000-0022-5D0C-E

 

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Englisch

OBJECTIVE The ECG plays a central role in the rapid diagnosis of acute myocardial infarctions (MI). In haemodynamically instable patients, adhesion of electrodes sometimes is difficult and assessing ECGs through layers of clothes has not been done so far. A novel capacitive measurement of ECG signals is possible without skin contact. Whether this technical innovation can be used in patients with MI is unclear. METHODS We evaluated a capacitive ECG system (cECG) in patients with anterior and inferior ST elevation MI (STEMI). The cECG was assessed using a sensor array consisting of 15 electrodes of which the classical leads I, II, III, aVL, aVF and V1–V3 were calculated from. 66 patients were included in the study. In addition to the conventional ECG (kECG) the novel cECG was registered before reperfusion therapy was started. RESULTS In a first round, 19 patients presented with anterior MI, 23 with inferior MI, and 7 either with left bundle branch block or lateral MI. Regarding anterior MI, a significant correlation (P < 0.05) was found between ST elevations in leads I, aVL, V2 and V3 comparing cECG and kECG. In inferior MI, there was only a significant correlation (P < 0.05) in lead III between cECG and kECG, but not in II and aVF. Therefore, 17 additional patients were included in the study by placing an additional electrode further away from the sensor array on the chest. ST elevations now correlated in all inferior leads II, III and aVF (P < 0.05) as measured in 9 patients with inferior MI.  CONCLUSION It is possible to identify STEMIs by cECG. This innovative technique could play an important role in the pre-hospital period as well as in the hospital.
Keywords: capacitive measurement; capacitive ecg; acute myocardial infarction; STEMI; electrocardiogram; ecg; contactless ecg
Schlagwörter: STEMI; kapazitive Messtechnik; kapazitives EKG; EKG; Elektrokardiogramm; kontaktloses EKG; akuter Myokardinfarkt
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