TY  - JOUR
T1  - CLarification of q waves in lead iii
AU  - Spodick DH
Y1  - 1977/10/01
N1  - 10.1001/archinte.1977.03630220110033
JO  - Archives of Internal Medicine
SP  - 1486
EP  - 1486
VL  - 137
IS  - 10
N2  - To the Editor.— 
    Although their conclusions are consistent with clinical experience, the report by Bodenheimer and colleagues (Archives 137:437-439, 1977) is a curious document. In the introduction, the authors state that a Q wave in lead III becomes more prominent as the heart assumes a more horizontal position, citing Friedberg (their reference 9) and others; however, this statement contravenes both theory and common clinical experiences. Moreover, Friedberg quite clearly noted that a transverse position is associated with a Q wave in lead I and with an S wave in lead III. The authors further state "as the heart assumes a more horizontal position, the resultant vector shifts superiorly so that the Q wave becomes more prominent in this lead [III]...." This is curious, because it is the mid and terminal QRS forces that shift superiorly with a left or horizontal QRS vector. Since the Q wave represents the initial forces,
SN  - 0003-9926
M3  - doi: 10.1001/archinte.1977.03630220110033
UR  - http://dx.doi.org/10.1001/archinte.1977.03630220110033
ER  -