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Neil Bhattacharyya, MD; Marvin P. Fried, MD

Arch Otolaryngol Head Neck Surg. 2002;128:389-392.

Objective  To determine the incidence and predictive factors for complications after total thyroidectomy.

Design  Cross-sectional analysis of a national database on total thyroidectomy cases.

Methods  The National Hospital Data Survey database was examined and all cases of total thyroidectomy performed during 1995 to 1999 were extracted. In addition to demographic information, postoperative complications including hypocalcemia, recurrent laryngeal nerve paralysis, wound complications, and medical morbidities were identified. Statistical analysis was conducted to determine potential predictive factors for postoperative complications.

Results  A total of 517 patients were identified (mean age, 48.3 years). The most common indications for total thyroidectomy were thyroid malignancy and goiter (73.9% of cases). Eighty-one patients (15.7%) underwent an associated nodal dissection along with total thyroidectomy, and 16 patients (3.1%) underwent parathyroid reimplantation. The mean length of stay was 2.5 days (95% confidence interval, 2.3-2.8 days). The incidence of postoperative wound hematoma was 1.0%, wound infection was 0.2%, and mortality rate was 0.2%. The incidence of postoperative hypocalcemia was 6.2%. Younger age was statistically associated with an increased incidence of hypocalcemia (P = .002, t test), whereas sex (P = .48), indication for surgery (P = .32), parathyroid reimplantation (P>.99), and associated neck dissection (P = .21) were not. The mean length of stay was 2.5 days and was unaffected by occurrence of postoperative hypocalcemia. The incidences of unilateral and bilateral vocal cord paralyses were 0.77% and 0.39%, respectively.

Conclusions  Postoperative hypocalcemia is the most common immediate surgical complication of total thyroidectomy. Other complications, including recurrent laryngeal nerve paralysis, can be expected at rates approximating 1%.

From the Department of Otology and Laryngology, Harvard Medical School, and the Division of Otolaryngology, Brigham and Women's Hospital, Boston, Mass (Dr Bhattacharyya); and the Department of Otolaryngology, Montefiore Medical Center, Bronx, NY (Dr Fried).

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