Cerebral embolism and carotid-hyoid impingement syndrome

Kho, Lay Kun; Bates, Timothy R.; Thompson, Andrew R.; Dharsono, Ferry; Prentice, David

doi:10.1016/j.jocn.2019.03.040

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…Displacement of ICA by the hyoid should be considered in strokes of unknown aetiology, especially in the presence of cervical, pharyngeal, or otic pain, repetitive cervical movements, and prolonged cervical positioning. In such cases, angioCT scanning with head rotation may be useful for screening [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

“…Types with the ICA medial to the greater horn have rarely been reported [20][21][22][23]. Kolbel et al (2008) reported one such case, with neurological symptoms that disappeared after resection of the respective greater hyoid horn [20].…”

Section: Discussionmentioning

confidence: 99%

“…Plotkin et al (2019) reported a case with a type XI relationship [21]. Kho et al (2019) reported a case with ICA and ECA medial to the greater horn, which is a type III relationship [23]. Tokunaga et al (2015) presented evidence of a type II carotid-hyoid relationship [25].…”

Section: Discussionmentioning

confidence: 99%

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The Carotid–Hyoid Topography Is Variable

Manta,

Rusu,

Hostiuc

et al. 2023

Medicina

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Background and Objectives: The carotid bifurcation (CB) is presented in most anatomy textbooks as having a unique location at the upper margin of the thyroid cartilage. Although a number of case reports have provided evidence of the possibility of carotid artery location either lateral or medial to the greater hyoid horn, these reports have not established specific anatomic possibilities and prevalences. Materials and Methods: We retrospectively analysed a batch of 147 CT angiograms for 12 types of carotid–hyoid relationships and classified the bilateral combination possibilities of these types. Results: In 168/294 sides there were no carotid–hyoid relationships. Type I, external carotid artery (ECA) medial to the greater horn of the hyoid bone (GHHB), was observed in 0.34%; type II, internal carotid artery (ICA) medial to GHHB, in 0.34%; type III, ICA and ECA medial to GHHB, in 1.02%; type IV, common carotid artery (CCA) medial to GHHB, in 1.02%; type V, CB medial to GHHB, in 0.34%; type VI, ECA lateral to GHHB, in 20.41%; type VII, ICA lateral to GHHB, was not recorded; type VIII, ECA and ICA lateral to GHHB, in 3.74%; type IX, CCA lateral to GHHB, in 8.5%; type X, CB lateral to GHHB, in 6.46%; type XI, ECA lateral and ICA medial to GHHB, in 0.34%; and type XII, ICA lateral and ECA medial to GHHB, in 0.34%. Bilateral symmetry was found in 70.74% of cases, including the null types without carotid–hyoid relationships as well as types IV, VI, VIII, IX, and X. There was a highly significant association between the left and right variants of the carotid–hyoid relationship. Conclusions: Mechanical compression of the hyoid bone on the carotid arteries has various undesirable effects on the ICA and cerebral circulation. Underlying these are several variational anatomical patterns of carotid–hyoid relationships, which can be accurately documented on CT angiograms. A case-by-case anatomical study is better than assuming the carotid anatomy learned from textbooks.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The Carotid–Hyoid Topography Is Variable

Manta,

Rusu,

Hostiuc

et al. 2023

Medicina

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“…In addition, some of these positional anomalies have been reported to be reversible changes. Some studies have reported that abnormal ICA position became normal (including its relationship with ECA 1,15) or HB 11) ), or conversely, a normal positioning became abnormal 22) naturally during follow-up period. There are other reports in which authors detected these changes by ultrasonography and then established a relationship between ICA and HB affecting swallowing 23) or neck rotation.…”

Section: Nmc Case Report Journal Vol 8 2021mentioning

confidence: 99%

“…10) We found that 17 ACVS cases due to HB obstruction have been reported previously. Among these reports, we summarized cases in which we identified the running course of the ICA (medial or lateral to ECA) and the positional relationship between HB and ICA 1,[11][12][13][14][15][16][17][18][19][20][21][22] (Table 1). Among 14 cases, seven cases had twisted carotid bifurcations, and in all the cases the greater horn of HB was located lateral to the ICA.…”

Section: Nmc Case Report Journal Vol 8 2021mentioning

confidence: 99%

Carotid Endarterectomy Requiring Removal of the Superior Horn of Thyroid Cartilage: Case Report and Literature Review

Ishikawa

Moribe

Ito

et al. 2021

NMC Case Report Journal

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Carotid endarterectomy (CEA) is an established surgical procedure for carotid stenosis. We present the case of a 74-year-old man who underwent CEA for symptomatic internal carotid artery (ICA) stenosis. During the operation, we found that the hyoid bone (HB) and the superior horn of the thyroid cartilage covered the carotid sheath, preventing adequate visualization. Since this was anticipated based on preoperative examinations, the superior horn of thyroid cartilage was removed with the help of an otorhinolaryngologist. The HB was preserved because it could be retracted, and thereafter we performed CEA. Although CEA is a common procedure, the HB and thyroid cartilage are rarely involved in the operation. We present a case report including literature review of acute cerebrovascular syndrome (ACVS) due to HB and thyroid cartilage obstruction.

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Stylohyoid Ligament Injection

Waldman

2023

Atlas of Pain Management Injection Techniques

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Cerebral embolism and carotid-hyoid impingement syndrome

Cited by 8 publications

References 8 publications

The Carotid–Hyoid Topography Is Variable

The Carotid–Hyoid Topography Is Variable

Carotid Endarterectomy Requiring Removal of the Superior Horn of Thyroid Cartilage: Case Report and Literature Review

Stylohyoid Ligament Injection

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