J Formos Med Assoc
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Chronotropic incompetence (CI) severely limits exercise tolerance due to impaired heart rate responses. This study investigated whether pacemaker with closed-loop stimulation (DDD-CLS) pacing, which provides rate acceleration in response to exertion, could enhance lung function and cardiopulmonary capacity compared pacemaker without CLS pacing in patients with CI. ⋯ Compared with DDD mode, DDD-CLS pacing provided physiological chronotropic support to improve cardiopulmonary function during exertion, which enhanced lung capacity in patients with CI.
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Hip fractures are a significant health concern, especially in the elderly. Hemiarthroplasty has been the preferred treatment for displaced femoral neck fractures. The use of ceramic femoral heads has recently become popular due to their claimed durability. This study aimed to determine long-term outcomes associated with different implant choices in hemiarthroplasty. ⋯ This study found ceramic implant had lower postoperative complications and medical complication rates than metal head implant in hip hemiarthroplasty, but there was no difference in the revision rates between the two heads.