The optimal lead insertion depth for esophageal ECG recordings with respect to atrial signal quality

Häberlin, Andreas; Niederhauser, Thomas; Marisa, Thanks; Götte, Josef; Jacoment, Marcel; Mattle, Daniel; Roten, Laurent; Fuhrer, Jürg; Tanner, Hildegard; Vogel, Rolf (2013). The optimal lead insertion depth for esophageal ECG recordings with respect to atrial signal quality. Journal of electrocardiology, 46(2), pp. 158-165. Elsevier 10.1016/j.jelectrocard.2012.12.004

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BACKGROUND

Diagnosing supraventricular arrhythmias by conventional long-term ECG can be cumbersome because of poor p-waves. Esophageal long-term electrocardiography (eECG) has an excellent sensitivity for atrial signals and may overcome this limitation. However, the optimal lead insertion depth (OLID) is not known.

METHODS

We registered eECGs at different lead insertion depths in 27 patients and analyzed 199,716 atrial complexes with respect to signal amplitude and slope. Correlation and regression analyses were used to find a criterion for OLID.

RESULTS

Atrial signal amplitudes and slopes significantly depend on lead insertion depth. OLID correlates with body height (rSpearman=0.71) and can be estimated by OLID [cm]=0.25*body height[cm]-7cm. At this insertion depth, we recorded the largest esophageal atrial signal amplitudes (1.27±0.86mV), which were much larger compared to conventional surface lead II (0.19±0.10mV, p<0.0001).

CONCLUSION

The OLID depends on body height and can be calculated by a simple regression formula.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology 04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy 10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Cardiovascular Engineering (CVE)
UniBE Contributor:	Häberlin, Andreas David Heinrich, Niederhauser, Thomas, Marisa, Thanks, Götte, Josef, Mattle, Daniel, Roten, Laurent, Fuhrer, Jürg (A), Tanner, Hildegard, Vogel, Rolf
Subjects:	600 Technology > 610 Medicine & health
ISSN:	1532-8430
Publisher:	Elsevier
Language:	English
Submitter:	Hildegard Tanner
Date Deposited:	19 Mar 2014 14:30
Last Modified:	29 Mar 2023 23:33
Publisher DOI:	10.1016/j.jelectrocard.2012.12.004
PubMed ID:	23305907
Uncontrolled Keywords:	Esophageal long-term electrocardiography; Optimal lead insertion depth; Body height
URI:	https://boris.unibe.ch/id/eprint/41891