China
Africa
Explore chapters and articles related to this topic
Complications of Rhinosinusitis
Published in R James A England, Eamon Shamil, Rajeev Mathew, Manohar Bance, Pavol Surda, Jemy Jose, Omar Hilmi, Adam J Donne, Scott-Brown's Essential Otorhinolaryngology, 2022
Figure 37.1 illustrates the management algorithm. Onset is noted by swelling around the eye. Oedema results from congestion of veins draining the eyelid and can be present when the infection is still confined to the sinus. Orbital cellulitis is far more common in children and young adults. Visual problems are a late sign. Initially signs may be unilateral, bilateral disease propagates via the intercavernous sinuses. According to Chandler's classification, orbital complications may be divided into five stages based on their clinical and radiological findings (Table 37.2).
Surgical Management of Recurrent Pituitary Tumours
Published in John C Watkinson, Raymond W Clarke, Louise Jayne Clark, Adam J Donne, R James A England, Hisham M Mehanna, Gerald William McGarry, Sean Carrie, Basic Sciences Endocrine Surgery Rhinology, 2018
Mihir R. Patel, Leo F.S. Ditzel Filho, Daniel M. Prevedello, Bradley A. Otto, Ricardo L. Carrau
When drilling down the face of the sella, enough bone must be removed as to expose the ‘four blues’.30 These represent the walls of the cavernous sinus laterally and the intercavernous sinuses superior and inferiorly (Figure 85.2b). The authors typically drill the face of the sella until its wall is very thin, and then use a Kerrison rongeur as a dissector to separate and then lift the bone off the dura, avoiding the urge to bite the bone with the rongeur. This technique helps to avoid an inadvertent internal carotid injury as well as tears in the cavernous sinus wall. Bone that does not fracture with a gentle pull from the Kerrison rongeur indicates the need for further drilling. In addition, drilling of the sellar floor and the surrounding bone provides the ability to retract the internal carotid artery laterally and the use of a cotton tip applicator31 to manipulate the tumour from below.
Back and central nervous system
Published in Aida Lai, Essential Concepts in Anatomy and Pathology for Undergraduate Revision, 2018
Diaphragma sella– roof over hypophyseal fossa– penetrated by infundibulum of hypophysis– ant. and post. parts contain ant. and post. intercavernous sinuses
Turbulent Flow in a Cavernous Sinus Lesion: Does It Suggest Something?
Published in Neuro-Ophthalmology, 2021
Vaibhav Kumar Jain, Vivek Singh, Akshata Charlotte, Vikas Kanaujia, Kumudini Sharma
A possible mechanism of mycotic aneurysm formation of the intracavernous part of the internal carotid artery after facial infection could be retrograde spread and extension into the cavernous sinus through the facial vein which communicates with the pterygoid plexus through the deep facial vein. The pterygoid plexus of veins is connected to the cavernous sinus through emissary veins and both cavernous sinuses communicate with each other through the anterior and posterior intercavernous sinuses and basilar plexus of veins.3 All of these communications are valveless and blood can flow through them in either direction. In our case, the cellulitis was in a dangerous area of face which led to the cavernous sinus thrombophlebitis via above mentioned pathway leading to the focal angiitis of the intracavernous part of internal carotid artery that could have caused vessel wall weakness with subsequent aneurysm formation.4 Similar to our case, other cases of mycotic intracavernous internal carotid artery aneurysm following facial infection have been reported.5–7
Oxidized Regenerated Cellulose Can Reduce Hidden Blood Loss after Total Hip Arthroplasty: A Retrospective Study
Published in Journal of Investigative Surgery, 2019
Ji-Qi Wang, Lu-Ying Chen, Bing-Jie Jiang, You-Ming Zhao
To the best of our knowledge, ORC, which is a type of hemostat, has affinity for Hb in erythrocytes, which assists in the clotting process and prevents bleeding.29,30 In addition, ORC can be reabsorbed via hydrolysis and is associated with a low rate of foreign-body reactions; thus, it is widely used during surgery to achieve hemostasis.31 Rozanski et al.32 reported that the use of ORC during inflatable penile prosthesis surgery was independently associated with a reduction in drainage loss and reduced risk for postoperative corporal bleeding. Kim et al.33 found that intercavernous sinus bleeding was reduced by ORC application during transsphenoidal surgery versus microfibrillar collagen application. Meanwhile, Christodoulou et al.16 and Mair et al.17 showed that using ORC to control bone bleeding was an efficient treatment.
Percutaneous transorbital embolization of a carotid cavernous fistula
Published in Baylor University Medical Center Proceedings, 2019
Lance J. Lyons, Sarah A. Smith, Orlando Diaz, Humberto Diaz, Aroucha Vickers, Claudia Prospero, Andrew G. Lee
The patient presented a year later with acute vision loss to hand motions, marked lid edema, extensive conjunctival chemosis, and complete ophthalmoplegia in the left eye. The exam of the right eye was normal. Intraocular pressure was markedly elevated in the left eye. There was a left relative afferent pupillary defect. An emergent lateral canthotomy and inferior cantholysis were performed. Computed tomography (CT) scan suggested a partially thrombosed superior ophthalmic vein (SOV) and cavernous sinus. Catheter angiography confirmed a CCF involving the intercavernous sinus draining directly into the left cavernous sinus and partially thrombosed SOV. Attempted transarterial embolization was aborted, because the risk of ischemic nerve damage and resultant cranial nerve palsies was high. Transvenous embolization was not feasible because thrombosis in the retro-orbital segment of the SOV prevented vessel access by direct and indirect (via facial vein) approaches (Figure 1). Attempts to cannulate the inferior petrosal sinus and pterygomaxillary plexus failed due to the presence of bilateral thromboemboli.