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Dr. Taher hussieny ahmed :: Publications:

Title:
Is Local Injection of Methylene Blue allow Safe parathyroid gland preservation during Total Thyroidectomy?
Authors: Ahmed Zidan,1 MD; Taher H. Elwan,1,2 MD; Ahmed M. Nawar1
Year: 2019
Keywords: Methylene blue, Local injection, subcapsular thyroidectomy, Hypoparathyroidism, Hypocalcemia.
Journal: The Egyptian Journal of Surgery
Volume: 38
Issue: 2
Pages: 306-312
Publisher: The Egyptian Society of Surgeons (ESS)
Local/International: International
Paper Link:
Full paper Taher hussieny ahmed _EgyptJSurg382306-5163961_142039.pdf
Supplementary materials Not Available
Abstract:

Objectives: To evaluate surgical and biochemical outcome of local methylene blue (TTMB) injection during subcapsular thyroidectomy in preservation of parathyroid glands. Patients and Methods: the study include 88 patients divided into two groups. The study GP include 44 patients assigned for TT-MB and control GP include 44 patients that undergo CTT. All patients underwent clinical and radiological workup and estimation of serum parathyroid hormone (PTH) and serum total and ionized calcium (Ca). Operative procedure entails injection of 1-3 ml MB (0.8 mg/ml) in thyroid subcapsular layer and the procedure was repeated till completion of thyroidectomy. Study outcomes: included frequency of para-thyroid gland (PTG) localization, frequency and extent of hypo-parathyroidism (HPT) as judged by estimated serum PTH on 1st and 6th postoperative day (POD1 & POD6) in relation to preoperative level and the frequency and extent of disturbed serum calcium levels. The outcomes were compared versus outcome of the control group of patients had TT without the use of MB. Results: Dissection was easy in 38 cases (86.36%), more difficult in 6 cases (13.63%). One study and 5 control patients had HPT on POD6 and no study patient, while two control patients continued suffering hypoparathyroidism with significant difference in favor of study group. Conclusion: Subcapsular MB injection during subcapsular thyroidectomy facilitates safe thyroid dissection sparing PTG with easy successful dissection rate of 86.36%. Despite of decreased serum PTH, its extent was minimal and only 1 patient developed transient HPT.

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