Document Detail


Radioiodine remnant ablation in differentiated thyroid cancer after combined endogenous and exogenous TSH stimulation.
MedLine Citation:
PMID:  22294096     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aim: Radioiodine remnant ablation (RRA) after (near-)total thyroidectomy (TE) is a key element in patients with differentiated thyroid cancer (DTC). The use of exogenous TSH stimulation (rhTSH) prior to RRA has shown promising results as compared to conventional thyroid hormone withdrawal (THW). As yet, the efficacy of RRA after brief THW and single rhTSH administration has not been assessed. Patients, methods: The study sample comprised 147 patients with DTC referred to our center between May 2008 and September 2010. All patients received TE with subsequent RRA. None of these 147 patients had evidence of distant metastasis. 93 patients had endogenous TSH stimulation 4-5 weeks after surgery (group I) and twenty-six received two rhTSH injections (group II). 28 patients were treated with a single rhTSH injection after a brief THW (group III). RRA-Efficacy was assessed three months after therapy by diagnostic whole-body scan and measurement of the tumour marker thyroglobulin (Tg) under TSH stimulation. Results: Three categories of success were defined for remnant ablation. Based on the definition of successful remnant ablation no visible uptake and a Tg ≤ 2.0 ng/ml (category 1) was seen in 62/93 patients in group I, in 17/26 patients in group II (p = n.s.) and in 12/28 patients in group III (p < 0.05). Visible radioiodine uptake and a Tg ≤ 2.0 ng/ml (category 2) was seen in 16/28 patients of group III and thus significantly more frequent than in group I (28/93 patients) (p < 0.01). However, patients in group III (16/28 patients) and group II (8/26 patients) showed no significant difference in this category (p = n.s.). Visible radioiodine uptake and a Tg > 2.0 ng/ml (category 3) was found in 3/93 patients in group I and 1/26 patients in group II but in no patient in group III. Conclusion: The third strategy of remnant ablation using a single injection of rhTSH after a brief THW period resulted in a significant higher rate of patients with residual uptake in the thyroid bed and a Tg level below 2 ng/ml three months after remnant ablation in comparison to THW. However, the overall efficacy of the third protocol was not significantly different as compared to two rhTSH injections. Under the aspect of the supply shortage of rhTSH the combined endogenous and exogenous TSH stimulation may be an attractive alternative for remnant ablation in differentiated thyroid cancer.
Authors:
A Vrachimis; O Schober; B Riemann
Related Documents :
17990836 - Medications for copd: a review of effectiveness.
20478636 - Montelukast therapy and psychological distress in chronic obstructive pulmonary disease...
22216706 - Ectopic bone formation and extramedullary hematopoiesis in the thyroid gland: report of...
17906086 - Invasive pulmonary aspergillosis in patients with chronic obstructive pulmonary disease.
929106 - Serum isoamylase pattern in obstructive pancreatic disease.
17636556 - Tolerability and safety of the intravenous immunoglobulin octagam: a 10-year prospectiv...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-01
Journal Detail:
Title:  Nuklearmedizin. Nuclear medicine     Volume:  51     ISSN:  0029-5566     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7609387     Medline TA:  Nuklearmedizin     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Dr. Alexis Vrachimis, Department of Nuclear Medicine, Muenster University, Albert-Schweitzer-Campus 1, Building A1, 48149 Muenster, Germany, Tel. +49/(0)251/834 78 53, Fax +49/(0)251/834 73 83, E-mail: vrachal@uni-muenster.de.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Hypothermia and Ischemic Stroke.
Next Document:  On the role of surface charges for homogeneous freezing of supercooled water microdroplets.