Springer Verlag, Herzschrittmachertherapie und Elektrophysiologie, 4(19), p. 193-194
DOI: 10.1007/s00399-008-0014-5
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This case reports about the feasibility of the transvenous implantation of a second coronary sinus lead in addition to a non-extractable old left ventricular lead for the continuation of cardiac resynchronization therapy in a 48-year old patient with severe heart failure.