ECG diagnostic errors due to improper connection of the right arm and leg cables.
Two patients were erroneously diagnosed as having acute myocardial infarction or accelerated junctional rhythm due to improper connection of the right arm and right leg cables. In both cases the error led to unsuitable modifications in treatment. A key sign for identifying the technical oversight is minimal voltage in DII in all P, QRS and T waves (dwarf complexes).
Guijarro-Morales
A
A
Cardiology Service, University of Granada Hospital, Spain.
Gil-Extremera
B
B
Maldonado-Martín
A
A
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D003951:Diagnostic Errors; D004562:Electrocardiography; D004566:Electrodes; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*