Beta 2 transferrin : sensitivity 100% , specification 95% Beta 2 transfer is produced by neuraminidase activity within CNS. Therefore it is only present in : CSF Perilymph Aqueous humor
Day: June 25, 2017
How will you diagnose a case of idiopathic CSF rhinorrhoea.How will you diagnose a case of idiopathic CSF rhinorrhoea.
Spontaneous CSF rhinorrhoea occurs in patients without antecedent cause and they are termed if no aetiology leading to it could be identified. However recent evidence has led us to realize
Mention the cause of CSF Rhinorrhea.Mention the cause of CSF Rhinorrhea.
Abnormal communication b/w the subarachnoid space and the tympanomastoid nasal cavity. The cause of CSF rhinorrhoea was established by ommaya et al (1968) as: [table id=33 /] [table id=34 /]
Describe briefly the applied anatomy of medial wall of orbital.Describe briefly the applied anatomy of medial wall of orbital.
This wall is of most significance to the otorhinolaryngologist because of its proximity to the para nasal sinuses. . It is composed of : The frontal process of maxilla The lacrimal
What is the patterson external ethmoidectomy championed by Harrison?What is the patterson external ethmoidectomy championed by Harrison?
It compose of removal of entire medial wall from the level of the ethimodal vessels inferiorly and across the floor as far as the infraorbital nerve and lateral to this
How will you manage common canalicular obstruction?How will you manage common canalicular obstruction?
Insertion of lester-Jones tube(ceramic): Jones tubes are small tubes that create a new channel for draining the tears. They create a bypass route of tear drainage when the normal tear
How will you perform Laser assisted endoscope DCR? What is the role of Laser in DCR?How will you perform Laser assisted endoscope DCR? What is the role of Laser in DCR?
Carefully preoperative assessment done Syringing and probing done ↓ LA patient is put in supine position and asked to breath from mouth Antiseptic dressing and draping done. The canaliculus is
Write the indications and contraindications of Endoscopic DCR.Write the indications and contraindications of Endoscopic DCR.
Indications of endoscopic DCR : Epiphora associated c 10 acquired Naso Lacrimal Duct (NLD) obstruction Infection of Lacrimal sac associated c 10 acquired NLD obstruction. NLD obstruction 20 to specific
Write the advantage of endoscopic DCR over conventional open DCR.Write the advantage of endoscopic DCR over conventional open DCR.
No external scar. No disruption of medial canthal ligament and preservation of pumping action of arbicularis muscle. Thus procedure is functional DCR. No injury to angular facial vessels Shorter operative
What is terminal DCR?What is terminal DCR?
In terminal DCR the lacrimal sac is completely separated from the NLD is cut of to avoid recanalization. It results in total diversion of tear flow & opening that would