• R Bergamaschi, G Becouarn, J Ronceray, and J P Arnaud.
• Department of Visceral Surgery, Angers University Hospital, France.
• Am. J. Surg. 1998 Jul 1; 176 (1): 71-5.

BackgroundMorbidity is today's concern in thyroid surgery. The purpose of this paper was to quantify risk factors' contribution to morbidity rates.MethodsDuring 50 months, 1,163 patients undergoing 1,192 thyroidectomies at one hospital were reviewed at follow-up of 8 to 58 months.ResultsThere was 1 death (0.08%). Wound morbidity included 19 hematomas (1.6%), 3 chyle leaks (0.2%), and 6 abscesses (0.5%). Mean hospital stay was 4.3 days after surgery without drain and 5.3 days with drain (P < 0.01). Temporary and permanent hypoparathyroidism (TH; PH) rates were 20% and 4%. Parathyroid autografting and excision rates were 19% and 9%. TH rates were higher after parathyroid autografting or accidental excision (P < 0.01). There was no correlation between the severity of TH and the number of lymph nodes at neck dissection nor between postoperative serum calcium levels and the number of parathyroids identified at bilateral surgery. Temporary and permanent recurrent laryngeal nerve (RLN) palsy (TRLNP; PRLNP) rates were 2.9% and 0.5% (0.3% of 2,010 RLNs at risk). PH and TRLNP (not PRLNP) rates were higher after completion or total thyroidectomy with node dissection (P < 0.01). TRLNP and PRLNP rates after RLN exposure and after nonexposure were not statistically different. Surgical volume had no bearing on hematoma, abscess, TH, PH, TRLNP, and PRLNP rates.ConclusionsHigh surgical volume, identifying parathyroids and RLNs, failed to reduce morbidity. Completion and total thyroidectomy with node dissection increased PH and TRLNP (not PRLNP) rates.

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