Intraparotid Superficial Temporal Artery Arteriovenous Malformation Causing Persistent Pulsatile Tinnitus

2020 ◽  
Vol 41 (7) ◽  
pp. e873-e875
Author(s):  
Anne Morgan Selleck ◽  
Brendan O’Connell ◽  
Samip Patel ◽  
Joseph Madison Clark
Author(s):  
Nyoman Gde Trizka Santhiadi ◽  
I. Nyoman Semadi

Scalp arteriovenous malformation (AVM) are rare conditions that usually need surgical treatment. Its management is difficult because of its high shunt flow, complex vascular anatomy, and possible cosmetic complication. The etiology of scalp AVM may be spontaneous or traumatic. This vascular lesion present as scalp lump or a mass, grotesque, pulsatile mass with a propensity to massive haemorrhage. Various treatment option that have been adopted to treat these lesions include surgical excision, ligation of feeding vessel, trans arterial and transvenous embolization, injection of sclerosant into the nidus and electro thrombosis. A 22-years-old-female referred to cardiothoracic division with a 10 years history of a large fronto-parietal pulsatile reddish soft mass, progressively increasing in size, measuring about 15x6x2 cm, ulcerated area; without any symptoms and history of trauma. Three-dimensional CT angiography demonstrated a mass that was completely within the scalp and prominent vascular that was completely within the scalp and was not associated with bone or periosteum. The feeding arteries were originated from angular artery, supratrochlear artery, left and right superficial temporal artery. Surgical excision and ligation of feeding vessel was performed without complication. With pre-operative appropriate surgical planning, scalp AVM can be excised safely without any major complication. Though some cases may be treated with percutaneous or endovascular embolization, surgery remains the treatment of choice. In the event of scalp ulceration and haemorrhage, total excision is the only option.


2016 ◽  
Vol 22 (5) ◽  
pp. 606-610 ◽  
Author(s):  
Matthijs in ‘t Veld ◽  
Peter WA Willems

Background and objective One of the treatment options for arteriovenous malformations consists of embolization, with a choice of various embolic agents, with or without subsequent surgical excision. If embolization is offered without subsequent surgery, the embolic material will stay in situ, in which case the consistency and color become important in superficial lesions. The purpose of this case report is to describe if the use of a novel liquid embolic agent (PHIL) is well suited for treatment of superficial AVMs without subsequent surgery. Case description A 30-year-old male presented with a painful reddish, pulsatile swelling of the left ear that had been present for more than 10 years. Angiography confirmed an arteriovenous malformation supplied by the superficial temporal artery and the posterior auricular artery. The lesion was successfully treated by embolization with PHIL, through the superficial temporal artery. A minute residual shunt, from the posterior auricular artery, was accepted. Immediate disappearance of pulsatile tinnitus was reported. Moreover, return of normal skin color was observed without discomfort from the embolic deposits. This result has been stable throughout one year of clinical follow-up. Conclusion To our knowledge, this is the first case report describing PHIL embolization as a treatment option for superficial arteriovenous malformations without the necessity for subsequent surgery. The white color and rubbery consistency are beneficial characteristics of PHIL in treatment of subcutaneous lesions, especially in cosmetically relevant locations.


2020 ◽  
pp. 1-8
Author(s):  
Ryosuke Tashiro ◽  
Miki Fujimura ◽  
Masahito Katsuki ◽  
Taketo Nishizawa ◽  
Yasutake Tomata ◽  
...  

OBJECTIVESuperficial temporal artery–middle cerebral artery (STA-MCA) anastomosis is the standard surgical management for moyamoya disease (MMD), whereas cerebral hyperperfusion (CHP) is one of the potential complications of this procedure that can result in delayed intracerebral hemorrhage and/or neurological deterioration. Recent advances in perioperative management in the early postoperative period have significantly reduced the risk of CHP syndrome, but delayed intracerebral hemorrhage and prolonged/delayed CHP are still major clinical issues. The clinical implication of RNF213 gene polymorphism c.14576G>A (rs112735431), a susceptibility variant for MMD, includes early disease onset and a more severe form of MMD, but its significance in perioperative pathology is unknown. Thus, the authors investigated the role of RNF213 polymorphism in perioperative hemodynamics after STA-MCA anastomosis for MMD.METHODSAmong 96 consecutive adult patients with MMD comprising 105 hemispheres who underwent serial quantitative cerebral blood flow (CBF) analysis by N-isopropyl-p-[123I]iodoamphetamine SPECT after STA-MCA anastomosis, 66 patients consented to genetic analysis of RNF213. Patients were routinely maintained under strict blood pressure control during and after surgery. The local CBF values were quantified at the vascular territory supplied by the bypass on postoperative days (PODs) 1 and 7. The authors defined the radiological CHP phenomenon as a local CBF increase of more than 150% compared with the preoperative values, and then they investigated the correlation between RNF213 polymorphism and the development of CHP.RESULTSCHP at POD 1 was observed in 23 hemispheres (23/73 hemispheres [31.5%]), and its incidence was not statistically different between groups (15/41 [36.6%] in RNF213-mutant group vs 8/32 [25.0%] in RNF213–wild type (WT) group; p = 0.321). CHP on POD 7, which is a relatively late period of the CHP phenomenon in MMD, was evident in 9 patients (9/73 hemispheres [12.3%]) after STA-MCA anastomosis. This prolonged/delayed CHP was exclusively observed in the RNF213-mutant group (9/41 [22.0%] in the RNF213-mutant group vs 0/32 [0.0%] in the RNF213-WT group; p = 0.004). Multivariate analysis revealed that RNF213 polymorphism was significantly associated with CBF increase on POD 7 (OR 5.47, 95% CI 1.06–28.35; p = 0.043).CONCLUSIONSProlonged/delayed CHP after revascularization surgery was exclusively found in the RNF213-mutant group. Although the exact mechanism underlying the contribution of RNF213 polymorphism to the prolonged/delayed CBF increase in patients with MMD is unclear, the current study suggests that genetic analysis of RNF213 is useful for predicting the perioperative pathology of patients with MMD.


Sign in / Sign up

Export Citation Format

Share Document