A patient was implanted with dual chamber reply dr pacemaker (sn (b)(6)) and two leads (atrial s/n (b)(6) and ventricular s/n (b)(6)) by the auxiliary vein on (b)(6) 2020.On (b)(6) 2023, the test parameters of the program-controlled pacemaker were not ideal, the ventricular capture threshold was high, and the suspected ventricular lead was observed under the image, so the director suggested going to beijing for treatment.On (b)(6) 2023 a reintervention occurred and the involved ventricular lead and the pacemaker were replaced by devices from another companies.
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