Why the study?
Does thyroxin administration permit successful pacemaker implantation with normal stimulation thresholds in a patient with hypothyroidism and high thresholds?
Does thyroxin administration permit successful pacemaker implantation with normal stimulation thresholds in a patient with hypothyroidism and high thresholds?
Hypothyroidism can cause high pacemaker stimulation thresholds, which can be reversed by achieving a euthyroid state with thyroxin replacement.
Answers are grounded in this paper and cite their sources.
Thyroxin may enable successful DDD pacing with normal thresholds in hypothyroid patients; leaves open whether this extends beyond single cases.
An 81-year old man with third-degree AV block and weakness underwent an unsuccessful attempt to DDD pacemaker implant caused by hypothyroidism. Administration of thyroxin until he was euthyroid permitted implantation with normal stimulation thresholds.
No takes yet. Share an insight, caveat, or question.
Emilsson et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: