• Robert Udelsman.
• Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, USA. robert.udelsman@yale.edu
• Ann. Surg. 2002 May 1; 235 (5): 665672665-70; discussion 670-2.

ObjectiveTo review the outcomes of 656 consecutive parathyroid explorations performed by a single surgeon and to compare the results of conventional and minimally invasive parathyroidectomy (MIP) techniques.Summary Background DataTraditional surgery for primary hyperparathyroidism (HPTH) involves bilateral cervical exploration, which is usually accomplished under general endotracheal anesthesia. The MIP technique involves preoperative localization with sestamibi scans, surgeon-administered cervical block anesthesia, directed exploration through a small incision, intraoperative rapid parathyroid hormone assay, and discharge within 2 to 3 hours of surgery.MethodsSix hundred fifty-six consecutive patients with primary HPTH underwent exploration between January 1990 and March 2001.ResultsMIP was used with ever-increasing frequency beginning in March 1998. Four hundred one procedures (61%) were performed using the standard technique and 255 patients (39%) were selected for MIP. The success rate for the entire series was 98%, with no significant differences comparing traditional and MIP techniques. The overall complication rate of 2.3% reflects 3.0% and 1.2% rates in the standard and MIP groups, respectively. MIP was associated with approximately a 50% reduction in operating time, a sevenfold reduction in length of hospital stay, and a mean cost savings of $2,693 per procedure, which represents nearly a 50% reduction in total hospital charges.ConclusionsA dramatic and sustained shift has occurred in the surgical treatment of primary HPTH: MIP has replaced traditional exploration for most patients.

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