منابع مشابه
Lewis lead enhances atrial activity detection in wide QRS tachycardia.
BACKGROUND The differential diagnosis of wide QRS tachycardia is a challenge for the emergency physician. The major tool is the electrocardiogram (ECG), even though the sensitivity and specificity may be variable, depending on presentation. Additional leads could be used to improve the diagnostic accuracy of the ECG. OBJECTIVE To document the use of the Lewis lead in improving the diagnostic ...
متن کاملUsefulness of lewis lead for visualizing p-wave.
Lewis lead recording was done (Figure 2). The Lewis lead was developed by Thomas Lewis to obtain the most prominent atrial activity in atrial fibrillation, and recording was done as follows: a bipolar chest lead was used, with the right arm electrode applied to the right side of the sternum at the second intercostal space and the left arm electrode applied to the right side of the sternum at th...
متن کاملLEWIS BASE ADDUCTS OF LEAD(I1) COMPOUNDS IV*, SYNTHESIS AND CRYSTAL STRUCTURES OF (DINITRATO) (1,4,8,11- TETRA- AZAANDECANE) LEAD(I1)
The synthesis and single-crystal X-ray structure determination of the title compound (dinitrato) (1,4,8,11 -tetra-azaandecane) lead(II) is described. Crystals are monoclinic, P2 /ca= 10.271 (2)?,b= 13.524(4) ?,c= 11.298(6) ?,?=94.68(3),2=4,R,Rw, 0.036 and 0.041, respectively. The lead atom is eight-coordinate [Pb-N, 2.44 (2) - 2.55 (1)], [Pb-0,2.87 (1) - 3.06 (2)].
متن کاملlewis base adducts of lead(i1) compounds iv*, synthesis and crystal structures of (dinitrato) (1,4,8,11- tetra- azaandecane) lead(i1)
the synthesis and single-crystal x-ray structure determination of the title compound (dinitrato) (1,4,8,11 -tetra-azaandecane) lead(ii) is described. crystals are monoclinic, p2 /ca= 10.271 (2)?,b= 13.524(4) ?,c= 11.298(6) ?,?=94.68(3),2=4,r,rw, 0.036 and 0.041, respectively. the lead atom is eight-coordinate [pb-n, 2.44 (2) - 2.55 (1)], [pb-0,2.87 (1) - 3.06 (2)].
متن کاملThe Lewis lead: making recognition of P waves easy during wide QRS complex tachycardia.
An 80-year-old man was admitted to our hospital because of complaints of dizziness and palpitations. His medical history revealed an anteroseptal myocardial infarction 26 years earlier. The patient was hemodynamically stable with a blood pressure of 95/60 mm Hg and a heart rate of 120 bpm. The ECG (Figure 1A) showed a wide QRS complex tachycardia, 120 bpm. The electric axis was northwest. From ...
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ژورنال
عنوان ژورنال: Circulation
سال: 2009
ISSN: 0009-7322,1524-4539
DOI: 10.1161/circulationaha.109.852053