The efficacy and safety of high-intensity focused ultrasound in the treatment
of benign thyroid nodules: A systematic review and meta-analysis
from 1990 to 2021

Cheong, Clarissa Wei Shuen; Au, Joy Xin Yi; Lim, Ming Yann; Fu, Ernest Wei Zhong; Li, Hao; Gan, Yijin Jereme

doi:10.47102/annals-acadmedsg.2021260

Cited by 2 publications

(1 citation statement)

References 23 publications

(63 reference statements)

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“…One systematic review and meta-analysis (including 9, respective 6 studies) from 2022 revisited the studies between 1990 and 2021 concerning high-intensity focused ultrasound as a therapeutic approach for benign thyroid nodules. In addition to common side reactions like local pain and tegument changes, major side effects included 0.014% of patients with transient vocal cords paralysis and dysphonia, but, also, 0.5% of subjects experiencing transitory HS [ 89 ]. HS after this type of procedure might be symptomatic (for instance, neck pain that requires other investigations for differential diagnostic) [ 90 ].…”

Section: Thyroid Conditions and Hs And Lymphocele/chylous Leakagementioning

confidence: 99%

Horner’s Syndrome and Lymphocele Following Thyroid Surgery

Cârșote

Nistor

Popa

et al. 2023

JCM

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Horner’s syndrome (HS), caused by lesions of the 3-neuron oculosympathetic nerve pathway (ONP), includes the triad: blepharoptosis, miosis and anhidrosis (ipsilateral with ONP damage). Thyroid–related HS represents an unusual entity underling thyroid nodules/goiter/cancer–HS (T-HS), and post-thyroidectomy HS (Tx-HS). We aim to overview Tx-HS. This is a narrative review. We revised PubMed published, full-length, English papers from inception to November 2022. Additionally, we introduced data on post-thyroidectomy lymphocele/chylous leakage (Tx-L), and introduced a new pediatric case with both Tx-HS and Tx-L. Tx-HS: the level of statistical evidence varies from isolated case reports, studies analyzing the large panel of post-thyroidectomy complications reporting HS among the rarest side effects (as opposite to hypocalcemia), or different series of patients with HS due to various disorders, including T-HS/Tx-HS. Tx-HS is related to benign or malignant thyroid conditions, regardless the type of surgery. A pre-operatory rate of T-HS of 0.14%; a post-operatory rate of Tx-HS between 0.03% and 5% (mostly, 0.2%) are identified; a possible higher risk on endoscopic rather than open procedure is described. Incomplete HS forms, and pediatric onset are identified, too; the earliest identification is after 2 h since intervention. A progressive remission is expected in most cases within the first 2–6 months to one year. The management is mostly conservative; some used glucocorticoids and neurotrophic agents. One major pitfall is an additional contributor factor like a local compression due to post-operatory collections (hematoma, cysts, fistula, Tx-L) and their correction improves the outcome. The prognostic probably depends on the severity of cervical sympathetic chain (CSC) lesions: indirect, mild injury due to local compressive masses, intra-operatory damage of CSC like ischemia and stretching of CSC by the retractor associate HS recovery, while CSC section is irreversible. Other iatrogenic contributors to HS are: intra-operatory manipulation of parathyroid glands, thyroid microwave/radiofrequency ablation, and high-intensity focused ultrasound, and percutaneous ethanol injection into thyroid nodules. Tx-L, rarely reported (mostly <0.5%, except for a ratio of 8.3% in one study), correlates with extended surgery, especially lateral/central neck dissection, and the presence of congenitally—aberrant lymphatic duct; it is, also, described after endoscopic procedures and chest-breast approach; it starts within days after surgery. Typically low-fat diet (even fasting and parental nutrition) and tube drainage are useful (as part of conservative management); some used octreotide, local sealing solutions like hypertonic glucose, Viscum album extract, n-Butyl-2-cyanoacrylate. Re-intervention is required in severe cases due to the risk of lymphorrhoea and chylothorax. Early identification of Tx-HS and Tx-L improves the outcome. Some iatrogenic complications are inevitable and a multifactorial model of prediction is still required, also taking into consideration standardized operatory procedures, skillful intra-operatory manipulation, and close post-operatory follow-up of the patients, especially during modern era when thyroid surgery registered a massive progress allowing an early discharge of the patients.

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Section: Thyroid Conditions and Hs And Lymphocele/chylous Leakagementioning

confidence: 99%