The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II

Background: Large goiters are very common and it is frequently encountered by endocrine surgeons especially in developing countries. Rarely, issues regarding large goiters have been discussed, particularly the association between large goiter and thyroid cancers. The objectives of this study are...

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Main Author: Yah Wui, Choo
Format: Thesis
Language:English
Published: 2015
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Online Access:http://eprints.usm.my/40140/1/Dr._Choo_Yah_Wui__%28Surgery%29-24_pages.pdf
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spelling my-usm-ep.401402018-07-16T01:36:37Z The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II 2015 Yah Wui, Choo RD Surgery Background: Large goiters are very common and it is frequently encountered by endocrine surgeons especially in developing countries. Rarely, issues regarding large goiters have been discussed, particularly the association between large goiter and thyroid cancers. The objectives of this study are to analyze the associate factors of thyroid malignancy in large goiters as well as the surgical complications in performing resection for large goiters. Methods: Patients who had primary thyroid surgery between June 2007 and May 2013 were retrospectively reviewed. Patients who underwent thyroidectomy with a resected specimen of ≥ 50g in hemithyroidectomy or ≥ 100g in total thyroidectomy were recruited in the study. The associate factors for thyroid cancer in large goiters (age, gender, thyroid function status, compression symptom and, nodularity) were analyzed. The surgical complications namely temporary hypocalcaemia, permanent hypoparathyroidism, RLN injury, post-operative haemorrhage, surgical site infection, local structures injury and mortality associated with thyroid surgery were recorded. Results: A total of 611 patients who had capsular dissection thyroid surgeries were recruited in the study. The prevalence of large goiter was 410 (67.1%) and the prevalence of thyroid malignancy in large goiters was 115 (28.0%). The patients with large goiters had higher chance to have thyroid malignancies with OR of 1.52 (1.02, 2.28). Multiple Logistic Regression Analysis revealed that the significant associate factors for thyroid malignancy in large goiters were age and STN with OR of 1.02 (1.01, 1.04) and 1.80 (1.10, 2.94), respectively. There were 82 (25.5%) temporary hypocalcaemia, 9 (2.8%) permanent hypoparathyroidism, 4 (1.2%) RLN injuries, 8 (2.5%) post-operative haemorrhages, 4 (1.2%) local structure injuries and 1 (0.3%) death after thyroid surgery for large goiters. Conclusions: The high prevalence of large goiters in the developing countries necessitates the different approach in the management of thyroid disease. Large goiters are associated with higher prevalence for thyroid malignancy. With the doubt of sensitivity in detecting thyroid malignancy from FNAC in large goiter, surgeons should consider removing the goiter early especially in older patients and those with STN. Nevertheless, the risks of surgery for large goiter should be deliberated and the surgery should only be performed by expert personal. 2015 Thesis http://eprints.usm.my/40140/ http://eprints.usm.my/40140/1/Dr._Choo_Yah_Wui__%28Surgery%29-24_pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic RD Surgery
spellingShingle RD Surgery
Yah Wui, Choo
The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
description Background: Large goiters are very common and it is frequently encountered by endocrine surgeons especially in developing countries. Rarely, issues regarding large goiters have been discussed, particularly the association between large goiter and thyroid cancers. The objectives of this study are to analyze the associate factors of thyroid malignancy in large goiters as well as the surgical complications in performing resection for large goiters. Methods: Patients who had primary thyroid surgery between June 2007 and May 2013 were retrospectively reviewed. Patients who underwent thyroidectomy with a resected specimen of ≥ 50g in hemithyroidectomy or ≥ 100g in total thyroidectomy were recruited in the study. The associate factors for thyroid cancer in large goiters (age, gender, thyroid function status, compression symptom and, nodularity) were analyzed. The surgical complications namely temporary hypocalcaemia, permanent hypoparathyroidism, RLN injury, post-operative haemorrhage, surgical site infection, local structures injury and mortality associated with thyroid surgery were recorded. Results: A total of 611 patients who had capsular dissection thyroid surgeries were recruited in the study. The prevalence of large goiter was 410 (67.1%) and the prevalence of thyroid malignancy in large goiters was 115 (28.0%). The patients with large goiters had higher chance to have thyroid malignancies with OR of 1.52 (1.02, 2.28). Multiple Logistic Regression Analysis revealed that the significant associate factors for thyroid malignancy in large goiters were age and STN with OR of 1.02 (1.01, 1.04) and 1.80 (1.10, 2.94), respectively. There were 82 (25.5%) temporary hypocalcaemia, 9 (2.8%) permanent hypoparathyroidism, 4 (1.2%) RLN injuries, 8 (2.5%) post-operative haemorrhages, 4 (1.2%) local structure injuries and 1 (0.3%) death after thyroid surgery for large goiters. Conclusions: The high prevalence of large goiters in the developing countries necessitates the different approach in the management of thyroid disease. Large goiters are associated with higher prevalence for thyroid malignancy. With the doubt of sensitivity in detecting thyroid malignancy from FNAC in large goiter, surgeons should consider removing the goiter early especially in older patients and those with STN. Nevertheless, the risks of surgery for large goiter should be deliberated and the surgery should only be performed by expert personal.
format Thesis
qualification_level Master's degree
author Yah Wui, Choo
author_facet Yah Wui, Choo
author_sort Yah Wui, Choo
title The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
title_short The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
title_full The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
title_fullStr The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
title_full_unstemmed The prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in Hospital Raja Perempuan Zainab II
title_sort prevalence and the associate factors for thyroid malignancy in large goiters results from six years’ experience in hospital raja perempuan zainab ii
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Sains Perubatan
publishDate 2015
url http://eprints.usm.my/40140/1/Dr._Choo_Yah_Wui__%28Surgery%29-24_pages.pdf
_version_ 1747820785388486656