 Hello everyone, welcome back to another session in dentistry and more. So today we have Eagleton criteria in oral surgery So Eagleton criteria is a criteria put forward by Eagleton in 1926 to diagnose the cavernous sinus thrombosis so cavernous sinus thrombosis or CST was first described by Bright 1831, okay So it is a complication of epidural and subdural contamination So since it has very intricate neurovascular anatomic relationship, this CST is the most complicated type of intracranial septic thrombosis So this is CST which can result from infection of any paranesal sinus or any of the anatomic structures Drained by the cavernous sinus including the mid-phase orbit and even oral cavity so Eagleton criteria we have a few Criterias to be fulfilled in order to diagnose the CST So before that we need to understand a little bit about the cavernous sinus So cavernous sinus is a dural venous sinus situated lateral to the cellar tosica between two layers of cranial dura in the middle cranial forza so structures present within the cavernous sinus include the third fourth and sixth cranial nerves Okay and ophthalmic and maxillary divisions of the fifth cranial nerve and internal carotid artery with its surrounding sympathetic plexus then The various roots of infection that can lead to the thrombosis So one from the face through the angular and ophthalmic veins Then from the middle ear through superior petrocynes and from teeth that is maxillary sinus Then from cervical vertebra through the plexus which is emptying into inferior ophthalmic vein and also from the sphenoid sinus by direct extension or draining the emissary veins or Even by extension from an infected internal jugular vein or lateral sinus or petrocyl sinus Or from the plexus of veins which is surrounding the internal carotid artery So Eagleton he has put forward Six criteria for establishment of the diagnosis of CST. So this is very commonly asked shock not in all surgery So let's see what are the criterias the first criteria is a non sight of infection then there should be evidence of bloodstream infection and there should be early signs of venous obstruction and There should be involvement of the nerves in the sinus that is third fourth and sixth cranial nerve then there should be abscess formation and the Soft tissue parts that is a neighboring soft tissues and there should be evidence of symptoms of Menstrual irritation. So these are the Criteria to confirm the CST So it is a very rare disease, but the mortality rate remains very high Even after the breakthrough of antibiotics and all the advanced imaging techniques So the problem is if the person Who is not aware of this criteria? Can lead the patient to worsen the situation if there is no other criteria if we can diagnose the CST as Early as possible we can start the intervention and robotic intervention and reduce the mortality and save the patient So the can be unethical practices by unregistered practitioners and a lack of awareness of dental health in rural areas or in such areas Can lead to severe life-threatening complications of a dental infection Because a dental infection has a high chance of turning into cavernous sinus thrombosis So you need to Diagnose it as early as possible. So all the practitioners must be knowing this Eagleton criteria to manage CST as early as possible because the Early diagnosis is the most important thing in management of CST as the time goes by The recovery rate is reduced and the mortality rate will be increased So early diagnosis and aggressive antibiotic treatment, which can definitely prevent the mortality Because of CST So on an exam point of view you need to write the six criteria For diagnosis of CST that is Eagleton criteria. So I'll come up with a new topic in oral surgery. Thank you