Objective: To assess all available data regarding the comparative success rates of endoscopic and microscopic stapes surgery.
Methods: MEDLINE, the Cochrane Library and Web of Science databases as well as other sources were searched by two independent reviewers. Controlled studies comparing endoscopic and microscopic stapedotomy in patients with otosclerosis or congenital stapedial fixation were included.
Objective: Hyperparathyroidism is a generalized alteration of calcium, phosphorus and bone metabolism due to an increased secretion of parathyroid hormone (PTH). In addition to the paraneoplastic ectopic type, we can distinguish three eutopic types of hyperparathyroidism, i.e.
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