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Prospective, observational, single-center study about the use of indocyanine green angiography during total thyroidectomy.
The main objective of the study is to identify a quantitative score of parathyroid vascularization as an outcome of angiography that correlates with the absence of postoperative hypoparathyroidism.
It is planned to enroll 66 patients.
Postoperative hypoparathyroidism and subsequent hypocalcemia are the most frequent complications after thyroid surgery. The incidence ranges from 19-38%, depending on the definition of hypoparathyroidism and hypocalcemia.
Although the cause of postoperative hypoparathyroidism is multifactorial, one of the most important factors is vascularization of parathyroid glands left in situ that is insufficient or impaired by surgical manipulation. Therefore, one of the goals of thyroid surgery is not only to recognize the parathyroid glands during dissection but also to respect their vascularization in order to preserve well perfused and viable glands.
The general objective of this study is to quantitatively assess the vascularization of the parathyroids following total thyroid removal.
In particular, the investigators intend to obtain data regarding parathyroid vascularization during total thyroidectomy with indocyanine green angiography. During standard surgery, angiography will be performed using a special camera after having administered intravenously indocyanine green. This technique is used to objectively assess the degree of fluorescence of the parathyroid glands.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Surgical group | Patients who undergo thyroid surgery and receive indocyanine green angiography |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Indocyanine green | Drug | Indocyanine green is used to perform intraoperative angiography. |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Vascularization score | A quantitative score of parathyroid vascularization as an outcome of indocyanine green angiography during thyroidectomy that correlates with the absence of postoperative hypoparathyroidism. The score will be reported as a percentage (range 0% - 200%) where the higher score means the better outcome. | Intraoperatively |
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Inclusion Criteria:
Exclusion Criteria:
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Inpatients who need surgical treatment for thyroid disease.
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| Name | Affiliation | Role |
|---|---|---|
| Riccardo Rosati, Prof. | San Raffaele Hospiral | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| San Raffaele Hospital | Milan | 20132 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 27839936 | Background | Lang BH, Wong CK, Hung HT, Wong KP, Mak KL, Au KB. Indocyanine green fluorescence angiography for quantitative evaluation of in situ parathyroid gland perfusion and function after total thyroidectomy. Surgery. 2017 Jan;161(1):87-95. doi: 10.1016/j.surg.2016.03.037. Epub 2016 Nov 10. | |
| 29405252 | Background | Vidal Fortuny J, Sadowski SM, Belfontali V, Guigard S, Poncet A, Ris F, Karenovics W, Triponez F. Randomized clinical trial of intraoperative parathyroid gland angiography with indocyanine green fluorescence predicting parathyroid function after thyroid surgery. Br J Surg. 2018 Mar;105(4):350-357. doi: 10.1002/bjs.10783. Epub 2018 Feb 6. |
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| ID | Term |
|---|---|
| D013959 | Thyroid Diseases |
| D013964 | Thyroid Neoplasms |
| D007011 | Hypoparathyroidism |
| D009389 | Neovascularization, Pathologic |
| ID | Term |
|---|---|
| D004700 | Endocrine System Diseases |
| D004701 | Endocrine Gland Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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| ID | Term |
|---|---|
| D007208 | Indocyanine Green |
| ID | Term |
|---|---|
| D007211 | Indoles |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
| D006571 | Heterocyclic Compounds |
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| SPY Portable Handheld Imaging (SPY-PHI) |
| Device |
The device is used to perform intraoperative angiography. |
|
| 31882459 | Background | Spartalis E, Ntokos G, Georgiou K, Zografos G, Tsourouflis G, Dimitroulis D, Nikiteas NI. Intraoperative Indocyanine Green (ICG) Angiography for the Identification of the Parathyroid Glands: Current Evidence and Future Perspectives. In Vivo. 2020 Jan-Feb;34(1):23-32. doi: 10.21873/invivo.11741. |
| 24563161 | Background | Puzziello A, Rosato L, Innaro N, Orlando G, Avenia N, Perigli G, Calo PG, De Palma M. Hypocalcemia following thyroid surgery: incidence and risk factors. A longitudinal multicenter study comprising 2,631 patients. Endocrine. 2014 Nov;47(2):537-42. doi: 10.1007/s12020-014-0209-y. Epub 2014 Feb 22. |
| 27515510 | Background | Ji YB, Song CM, Sung ES, Jeong JH, Lee CB, Tae K. Postoperative Hypoparathyroidism and the Viability of the Parathyroid Glands During Thyroidectomy. Clin Exp Otorhinolaryngol. 2017 Sep;10(3):265-271. doi: 10.21053/ceo.2016.00724. Epub 2016 Aug 13. |
| 27041628 | Background | Zaidi N, Bucak E, Yazici P, Soundararajan S, Okoh A, Yigitbas H, Dural C, Berber E. The feasibility of indocyanine green fluorescence imaging for identifying and assessing the perfusion of parathyroid glands during total thyroidectomy. J Surg Oncol. 2016 Jun;113(7):775-8. doi: 10.1002/jso.24237. Epub 2016 Apr 4. |
| D006258 |
| Head and Neck Neoplasms |
| D010279 | Parathyroid Diseases |
| D008679 | Metaplasia |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |