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Total thyroidectomy for differentiated thyroid cancer: primary compared with completion thyroidectomy.

OBJECTIVE: To analyse morbidity after completion total thyroidectomy compared with primary total thyroidectomy in a specialist thyroid surgery centre. DESIGN: Retrospective study. SETTING: Tertiary referral hospital, India. PATIENTS: Medical records of 143 patients who had total thyroidectomy between January 1990 and December 1999. 95 had primary thyroidectomies and 48 were completion thyroidectomies. MAIN OUTCOME MEASURES: Complication rate in both groups. RESULTS: The groups were comparable in respect of clinicopathological variables. Residual tumour was found in 19/48 (40%). After completion thyroidectomy, transient hypoparathyroidism and transient recurrent laryngeal nerve palsy were recorded in 8/48 (17%) and 2/48 (4%), respectively. No permanent hypoparathyroidism or permanent recurrent laryngeal nerve palsy was recorded in the completion thyroidectomy group. CONCLUSIONS: Completion thyroidectomy can be done with acceptable morbidity in a specialist thyroid surgery centre. Fear of increased morbidity after the procedure should not deter surgeon from doing this operation or referring the patients to a specialist centre.

Adult↗

Total thyroidectomy replaces subtotal thyroidectomy as the preferred surgical treatment for Graves' disease.

BACKGROUND: Total thyroidectomy is increasingly being adopted for patients requiring surgical treatment for Graves' disease based on a comparable surgical risk and the lack of recurrence, as well as the questionable ability of subtotal thyroidectomy to maintain euthyroidism. The purpose of the present paper was to evaluate its safety and efficiency. METHODS: Total thyroidectomy was adopted as part of the routine surgical treatment for Graves' disease from 2000. Patients who underwent subtotal thyroidectomy (STT) from 1995 to 1999 (n = 119) were compared with those who underwent total thyroidectomy (TT) from 2000 to 2003 (n = 98) with respect to immediate postoperative morbidity and long-term outcome. RESULTS: Fourteen (11.8%) and 22 patients (22.4%) required calcium supplement on discharge in the STT and TT groups, respectively (P < 0.05). One (0.8%) and three patients (3.1%) developed permanent hypocalcaemia, respectively. Transient recurrent laryngeal nerve palsy occurred in 9.2% (n = 11) and 5.1% (n = 5) of patients or 5.0% and 2.6% of nerves at risk after STT and TT, respectively. None of the patients had permanent nerve palsy. The estimated blood loss was less and hospital stay shorter after TT. During a mean follow up of 64 months, 86 patients (72.3%) in the STT group required thyroxine replacement and seven patients (5.9%) developed relapse. CONCLUSION: Subtotal thyroidectomy was associated with relapse as well as hypothyroidism in a significant proportion of patients during long-term follow up. Total thyroidectomy can be performed as safely as STT and should be recommended as the procedure of choice for patients requiring surgical treatment for Graves' disease.

Adolescent↗

[Nearly total thyroidectomy: versus total thyroidectomy: our experience].

AIM: Generally, the classification of thyroidectomy as benign pathology is: multinodular toxic goitre, simple goitre, toxic adenoma, Base-dow disease, Hashimoto's tyroiditis Subtotal thyroidectomy provides for the removal of the gland except for a bilateral residue of about 6-10 g, near total thyroidectomy provides for the near total removal of the gland except for a residue inferior to 5 grams. Near total thyroidectomy has taken the place of the subtotal thyroidectomy. METHODS: In two years, in our institute, there have been exeuted: 96 near total thyrodectomies, 96 total thyroidetomies, 8 lobectomies ad two revues for recurrencies. RESULTS: In 2 cases there have been haemorrhagies after nearly total thyroidetomy. Only in 1 case we practiced tracheotomy for follicular carcinoma infiltering thiroidic cartilage. In 2 cases treated with nearly total thyroidetomy and in 4 cases treated with total thyroidetomy, there has been temporary hypoparathyroidism. In no case treared wih nearly total thyroidetomy and in 2 cases treated with total thyroidetomy, there has been permanent hypo-parathyroidism. In 5 cases treated with total thyroidetomy and in no case treated with nearly total thyroidetomy, there has been, monolateral, temporary paralysis of the inferior laryngeal nerve that solved in 6 months for 3 patients and in 2 months for 2 patients. CONCLUSIONS: There has not been permanent paralysis of the mono or bilateral inferior laryngeal nerve. Even if the surgical approach to the benign disease is now orientated to the total thyroidectomy, a more conservative surgery is, in our opinion, justified when a malignant pathology is excluded and considering also the low effect of recurrencies and hypothyroidism.

Adolescent↗

Minimally invasive video-assisted thyroidectomy for follicular neoplasm: is there an advantage over conventional thyroidectomy?

BACKGROUND: Minimally invasive video-assisted thyroidectomy (MIVAT) is safe and effective for selected patients, but its advantages are not clearly defined. Results of MIVAT for follicular neoplasms at a single institution were retrospectively evaluated to define its advantages or disadvantages. METHODS: Between October 2002 and May 2004, 22 patients underwent MIVAT. Twenty-six patients who underwent conventional thyroidectomy during the same time period served as matched controls. Operative times, pathologic findings, complications, analgesic requirements, and incision lengths were retrospectively evaluated. RESULTS: Four MIVAT and three conventional surgery patients underwent total thyroidectomy. Eighteen MIVAT and 23 conventional patients underwent hemithyroidectomy. The operative time (mean +/- SEM) for hemithyroidectomy was 102 +/- 4 minutes for MIVAT and 86 +/- 3 minutes for conventional surgery (P < .05). In subgroup analysis that excluded patients with thyroiditis, operative times were not significantly different: MIVAT, 99 +/- 4 minutes; conventional, 88 +/- 4 minutes. The mean incision length was 2.3 +/- .5 cm in the MIVAT group. Conventional thyroidectomy was performed through a 4- to 5-cm incision. The average amount of narcotic used was not significantly different (intravenous, 9.9 +/- 3.1 mg [MIVAT] vs. 12.4 +/- 3.8 mg; oral, 10.3 +/- 4.2 mg [MIVAT] vs. 3.5 +/- 2.0 mg). The conventional group received more cyclooxygenase 2 inhibitor (527 +/- 9 mg vs. 187 +/- 84 mg; P < .05). One patient in each group experienced transient hoarseness. There were no cases of permanent hypoparathyroidism or recurrent laryngeal nerve injury in either group. CONCLUSIONS: MIVAT is as safe and effective as conventional thyroidectomy and is associated with similar narcotic analgesic requirements, but it can be performed through smaller incisions. Operative times were significantly longer for MIVAT, but when patients with thyroiditis were excluded, operative times were not significantly different.

Adenocarcinoma, Follicular↗

[Subtotal thyroidectomy or total thyroidectomy in the treatment of benign thyroid disease. Our experience].

During the period January 1989-December 1994, of 322 thyroid operations, 309 were benign. The pathologic changes in the excised thyroids were 18 benign adenoma, 291 goiter 9 of which with thyroiditis. 25 patients had undergone previous partial thyroidectomy. Total thyroidectomy was performed in 224 patients. There were no operative deaths. 77 (34.3%) patients developed postoperative hypocalcemia, 10 (2.7%) transient hypoparathyroidism, 4 (1.8%) permanent hypoparathyroidism, 3 (1.3%) transient recurrent laryngeal nerve palsies, 2 (0.9%) permanent nerve damages. In our experience total thyroidectomy is the gold standard for diffuse diseases of the thyroid, because, without more specific complication than subtotal thyroidectomy, it ensures: no recurrences, an easy control of postoperative hypothyroidism, the removal of microscopic malignant foci, the stopping of ophthalmopathy evolution.

Adenoma↗

A prospective randomized comparison of bilateral subtotal thyroidectomy versus unilateral total and contralateral subtotal thyroidectomy for graves' disease.

To reduce the chance of recurrent hyperthyroidism, two methods of subtotal thyroidectomy were performed and compared. From January 1998 to December 2002, 340 patients were operated on with subtotal thyroidectomy. They were prospectively randomized into two groups. Group A included 166 patients and group B 174 patients. Group A patients had a 2.5 x 1 x 1 cm thyroid remnant on each side and group B patients had a 2.5 x 1 x 1 cm remnant on one side plus total lobectomy on the other side. Thyroid function tests including T(3), T(4), TSH, and antimicrosomal antibody (AMA) were checked preoperatively and in the follow-up period of 3 months, and later up to 26.4 +/- 1.1 months (mean +/- SE). The age, sex, duration of oral medicine, and blood loss of the two groups were not significantly different during surgery and the follow-up period. The operative time was less in group A (113 +/- 3.3 minutes) than that in group B (131 +/- 3.2 minutes) (p < 0.001). In the long-term follow-up period, recurrent hyperthyroidism was noted in 15 patients in group A and 3 patients in group B. The difference was significant (p = 0.003). Hypothyroidism was noted in 35 of the group A patients and in 46 of the group B patients. The differences between the two groups regarding hypothyroidism was not significant (p = 0.181). Multivariate logistic regression analysis revealed preoperative titers of AMA > or = 6400, which was the only factor affecting the incidence of hypothyroidism in the later follow-up period. In consideration of hypothyroidism, recurrent hyperthyroidism, and postoperative complications, subtotal thyroidectomy with total lobectomy plus subtotal lobectomy provides a better outcome than bilateral subtotal lobectomy.

Adult↗

Comparison between minimally invasive video-assisted thyroidectomy and conventional thyroidectomy: a prospective randomized study.

BACKGROUND: Endoscopic procedures for thyroid surgery have been introduced since 1998, but their diffusion has remained limited because their advantages were never demonstrated. METHODS: Forty-nine patients undergoing surgery for either a thyroid nodule or a small papillary carcinoma were allotted to 1 of these procedures, minimally invasive video-assisted thyroidectomy (MIVAT) or conventional thyroidectomy (CT). Exclusion criteria were nodules greater than 35 mm, presence of thyroiditis, and thyroid volume greater than 20 mL. Preoperative diagnosis, operative time, postoperative pain, complications, and cosmetic result were evaluated. RESULTS: MIVAT group included 25 patients and the CT group 24 patients. Operative time was 66 +/- 24 minutes for MIVAT and 45 +/- 15 minutes for CT (P = .001). Postoperative course was significantly less painful in the patients who underwent MIVAT (P = .003). Cosmetic result evaluated by verbal response scale and numeric scale was in favor of MIVAT (P = .003 and P = .01, respectively). One recurrent nerve palsy and 1 transient hypoparathyroidism were present in CT patients; MIVAT patients experienced 2 transient palsies. CONCLUSIONS: Despite some MIVAT advantages in terms of postoperative pain and cosmesis, CT still offers an advantage in terms of operative time and its safety should not differ. Larger series of patients are needed before deciding whether endoscopic thyroidectomy can offer important advantages.

Adolescent↗

A prospective clinical trial to assess the efficacy of radioiodine ablation as an alternative to completion thyroidectomy in patients with differentiated thyroid cancer undergoing sub-total thyroidectomy.

We conducted a prospective clinical trial to evaluate whether radioiodine ablation can be an effective alternative to completion thyroidectomy in patients undergoing sub-total thyroidectomy and if yes, the optimum activity of 131I and frequency of ablation. A total of 85 patients (F--63; M--22) with mean age of 37.9+/-12.3 years were recruited in this study. The pre-ablation mean 24 hour radioiodine neck uptake, effective half-life, residual thyroid tissue weight and TSH values were 13.9+/-8.5%, 4.5+/-0.9 days, 9.6+/-3.6 g and 11.7+/-6.4 microIU/ml, respectively. Thyroid tissue was completely ablated in 50 patients (58.8%, 95% CI:50-68%) after mean 1st administered activity of 32.3+/-10.7 mCi of 131I and the cumulative ablation rate was 91.8% after two doses of 131I. During mean follow-up duration of 49 months no local/distant recurrence has been observed so far in this cohort. It appears that radioiodine ablation may be an attractive alternative to completion thyroidectomy and an activity as low as 35 mCi may achieve reasonable ablation.

Adult↗

Total thyroidectomy is now the preferred option for the surgical management of Graves' disease.

PURPOSE: Subtotal thyroidectomy has been advocated as the standard treatment for Graves' disease because of the possibility of avoiding thyroxine therapy as well as the assumed lower risk of complications compared to total thyroidectomy. However, the long-term results of subtotal thyroidectomy are not as good as they were previously believed to be, as evidenced by the increasing incidence of hypothyroidism. If the risk of complications from total thyroidectomy is no higher,then that procedure offers significant advantages in the surgical management of Graves' disease. The aim of this study therefore was to compare the complication rate of the two procedures in patients with Graves' disease. METHODS: This was a retrospective case control study in a tertiary referral hospital. Information was obtained from an endocrine surgery database over the study period from January 1957 to December 2000. During that period 1246 patients with Graves' disease underwent subtotal thyroidectomy and 119 patients underwent total thyroidectomy. RESULTS: Prior to 1987 total thyroidectomy was rarely if ever performed whereas in the last 12 months total thyroidectomy comprised 95% of all procedures. There was no significant difference in the rate of permanent complications between the two procedures although temporary hypocalcaemia was significantly more common following total thyroidectomy. Permanent hypoparathyroidism resulted in one patient each who underwent total thyroidectomy (0.8%) and subtotal thyroidectomy (0.1%). Permanent recurrent laryngeal nerve palsy occurred in one patient who underwent total thyroidectomy (0.8%) and 5 patients undergoing subtotal thyroidectomy (0.4%). CONCLUSION: Given that subtotal thyroidectomy provides an unpredictable outcome and that the risk of permanent complications is no greater than with total thyroidectomy, there appears little logical reason to continue to recommend subtotal thyroidectomy for the surgical management of Graves' disease. We believe that Graves' disease should join the increasing list of thyroid conditions for which total thyroidectomy is the preferred option.

Adolescent↗

Unintentional parathyroidectomy during thyroidectomy.

OBJECTIVES: In the United States thyroidectomy is a frequently performed surgery by both general and head and neck surgeons. Even the most experienced thyroid surgeon, however, has probably received a pathology report stating that an incidental parathyroid gland or parathyroid tissue was found in the submitted thyroidectomy specimen. The aim of this report is to explore some of the pathologic and clinical characteristics of unintentional parathyroidectomy during thyroidectomy. STUDY DESIGN: A retrospective review was performed of thyroidectomies performed at the University of California, Los Angeles, Center for the Health Sciences between 1989 and June 1998 which had pathology reports showing parathyroid tissue contained within the thyroidectomy specimen. This excluded any tissue submitted separately to be evaluated for parathyroid tissue and parathyroid tissue removed unintentionally during a thyroidectomy for a different procedure such as a laryngectomy or surgery for parathyroid disease. METHODS: The pathology slides were reviewed to determine the incidence of unintentional parathyroid tissue removal, the size of the parathyroid tissue found within the thyroid specimen, the location of the parathyroid tissue (extracapsular, intracapsular, intrathyroidal), and whether this unintentional parathyroidectomy during thyroidectomy caused clinical consequences. RESULTS: Four hundred fourteen applicable thyroidectomies were performed during this time with 45 (11%) discovered cases of unintentional parathyroidectomy during thyroidectomy. Twenty-five (56%) cases were discovered during thyroidectomy for benign disease, and 20 (44%) during thyroidectomy for malignant thyroid disease. All the parathyroid tissue was normal and was found in extracapsular (58%), intracapsular (20%), or intrathyroidal (22%) locations. Of these 45 cases, recurrent laryngeal nerve paralysis was found only in two patients who had the nerve resected intentionally during the thyroidectomy, and none of the patients developed permanent hypocalcemia. CONCLUSIONS: Incidental parathyroid gland tissue was reported in 11% of the thyroidectomies performed in our series, without the clinical consequence of hypocalcemia. The majority (78%) of this parathyroid tissue was found in the extracapsular and intracapsular locations; therefore it is possible that these parathyroid glands may be identified and preserved with more meticulous inspection of the thyroid capsule during and after thyroidectomy to decrease the incidence of unintentional parathyroidectomy during thyroidectomy in the future.

Carcinoma↗