lászló lujber md, phd. ent dept. tawam hospital
TRANSCRIPT
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László Lujber MD, PhD.ENT Dept. Tawam Hospital
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Objectives of the lecture
• To clarify the role that anatomy and physiology plays
in the pathogenesis of sinusitis.
• To differentiate the different forms of sinusitis
• To interpret correctly the radiological findings
• To prescribe the appropriate therapy for the patients
• To get updated in surgical managements
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Ethm., maxill.-present at birth
Sphenoid - age of 5 yrs
Frontal - age 7-12 yrs
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Physiology of sinus function
Ventilation and drainage !!!
Columnar-ciliated
respiratory epithelium
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Mucociliary transport
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Patho-mechanism of infection
• Sinuses are sterile• Nose and nasopharynx > bact. & fungi• Drainage + ventillation > clearance > infection• Predisposing factors
-viral URTI mucosal oedema bact.-allergic rhinitis ostium close infect.-anatomical … no ventill.,no drain.
• Dental origin, trauma…
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Pathophysiology of ostium obstruction
Ventilation ↓
Drainage ↓
Change in comp. & pH of secr. +mucosal gasmetabolism
Secretion ↑ & stagnate
Mucociliary function ↓& demage
Sec. bact. infection & mucosal oedema
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Bits & Pieces
• Most infections involving nose and paranasalsinuses are VIRAL URTI.
• 6-8 times URTI annually in children → 5-13% complicated with acute bact. sinusitis
• 80 % of bact. sinusitis is the result of previous viral URTI
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Bits & pieces
• 31 million pts in USA has sinusitis annually
• URTI- most common disease in ERs
• 2% of URTI-s develop acute bact. sinusitis
• Challenge is to differentiate between
URTI & allergic rhinitis & bacterial sinusitis
• 5 billion USD spent on medical therapy
• 60 billion USD for surgical treatment
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Clinical FormsClinical Forms
Acute, ( < 30 days, symptoms resolve completely)
Subacute, (30-90 days, symptoms resolve completely)
Chronic, (>90 days, eg. cough, discharge, obstruction)
Recurrent acute, (acute episodes but disease free
intervals of min 10 days)
Acute on chronic, (no disease free intervals)
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Pathogens involved:Pathogens involved:••IIn n adultsadults::
In acuteIn acute-- StreptococcusStreptococcus pneumoniaepneumoniae andand HaemophilusHaemophilus influenzaeinfluenzaeInIn chronicchronic-- infectinginfecting organismsorganisms areare variablevariable, , andand a a higherhigher incidenceincidence ofof
anaerobicanaerobic organismsorganisms is is seenseen ((egeg, , BacteroidesBacteroides, , PeptostreptococcusPeptostreptococcus,, andand
FusobacteriumFusobacterium species).species).
••InIn childrenchildren: :
similarsimilar ++ MoraxellaMoraxella catarrhaliscatarrhalis. .
StaphylococcusStaphylococcus aureusaureus is is anan occasionaloccasional findingfinding..
••InIn systemicallysystemically impairedimpaired hostshosts::
CandidaCandida, , AspergillusAspergillus, , andand PhycomycetesPhycomycetes maymay be be thethe causecause. .
RiskRisk factorsfactors: : diabetesdiabetes mellitusmellitus, , cancercancer, , hepatichepatic diseasedisease, , renalrenal failurefailure, ,
burnsburns, , extremeextreme malnutritionmalnutrition, , andand immunosuppressiveimmunosuppressive diseasesdiseases..
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History:
•Presentation of sinusitis is often nonspecificnonspecific..
•Patients may present with a persistent cold.
•Most complaints are related to the involved sinus.
•Common complaints are nasal congestion, purulent
discharge, and facial pain with headache.
•Pain is often exacerbated by leaning forward or any
head movement, reproducible by percussion, pressure.
•Patients may complain of retro-orbital pain if the
ethmoid sinus is involved.
•Some patients complain of dental pain or alteration in
smell.
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Bits & pieces to consider in children
•Most URIs last 5-7 days.•By 10 days, the URTI almost always improves.•Most rhinoviral infections improve within 7-10 days so the complaintof persistent or worsening symptoms may indicate a developingbacterial sinusitis.•Daytime cough and persistent nasal discharge.
•Facial pain and headache are rare in children. •Occult chr. sinusitis (7-12 yrs)
- sec. disease of bronchi & lung (Sinobronchial sy).- developmental problems & disorders- unexplained fever- disorders of stomach & intestine
•Mucoviscidosis , Cartagener`s sy
Ethm., maxill.-present atbirth
Sphenoid - age of 5 yrsFrontal - age 7-12 yrs
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PhysicalPhysical::••PurulentPurulent secretionssecretions inin thethe middlemiddle meatusmeatus
((highlyhighly predictivepredictive ofof maxillarymaxillary sinusitissinusitis).).
••FeverFever is is seenseen inin fewfewerer thanthan 2% 2% ofof individualsindividuals withwith
sinusitissinusitis..
••FacialFacial tendernesstenderness toto palpationpalpation or pressure or pressure is is presentpresent..
••CompleteComplete opacificationopacification ofof sinus sinus onon ((transilluminationtransillumination))
is is presentpresent..
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Diagnosis Diagnosis
••Sinus aspirationSinus aspiration (gold standard but I(gold standard but Iinvasive, painful, timeinvasive, painful, time--consuming consuming and not feasible.)and not feasible.)
••Clinical Clinical hxhx, signs and symptoms, signs and symptoms((rhinoscopyrhinoscopy, nasal , nasal endoscopyendoscopy))
(Clinical dg. in uncomplicated cases (Clinical dg. in uncomplicated cases is enough !!!)is enough !!!)
••Plain XPlain X--rays & rays & TransilluminationTransillumination(limited use, false neg. 40%, only (limited use, false neg. 40%, only maxillmaxill. sinus can be judged, . sinus can be judged, positioning young positioning young children`schildren`s head head is difficult.)is difficult.)
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DiagnosisDiagnosis
••CT CT **nonresponsivenonresponsive to AB, to AB,
**persistantpersistant, chronic, recurrent symptoms , chronic, recurrent symptoms /daytime cough, /daytime cough, postpost--nasal nasal drip, fever, drip, fever, purulent discharge purulent discharge chronic/chronic/
*complication *complication
*surgery*surgery
(extremely sensitive > over diagnosis !!!)(extremely sensitive > over diagnosis !!!)
Can NOT stand alone as diagnostic evidenceCan NOT stand alone as diagnostic evidence
••MRIMRI (if intracranial spread) (if intracranial spread)
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TherapyTherapyURTIURTI-- viral! & Allergic rhinitisviral! & Allergic rhinitis--allergy!allergy!Acute bacterialAcute bacterial::
antibiotics antibiotics (adequate dose! & antibacterial spectra!(adequate dose! & antibacterial spectra!culture & sensitivity)culture & sensitivity)
decongestants (topical, systemic), decongestants (topical, systemic), antihistamines, saline irrigation, antihistamines, saline irrigation, mucolyticsmucolytics, , Vitamin C, homeopathic medicines, Zinc nasal Vitamin C, homeopathic medicines, Zinc nasal gel, Echinacea preps.gel, Echinacea preps.
Recurrent acute & chronicRecurrent acute & chronic::above + risk factors!+ predisposing factorsabove + risk factors!+ predisposing factorsconsider ENT appointment!consider ENT appointment!
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AB use in USAAB use in USAAcute nonAcute non--complicated bacterial sinusitiscomplicated bacterial sinusitis•• Amoxicillin 45 or 90 mg/kg/d in 2Amoxicillin 45 or 90 mg/kg/d in 2
risk factors for resistancerisk factors for resistance-- previous use of ABprevious use of AB-- attandanceattandance to daycareto daycare-- age< 2 yrsage< 2 yrs
In In AmoxiAmoxi allergyallergy•• CefdinirCefdinir•• CefuroximeCefuroxime•• CefpodoximeCefpodoxime•• ClarithromycineClarithromycine•• AzythromycineAzythromycineIn Penicillin resistant Streptococcus In Penicillin resistant Streptococcus pneumoniaepneumoniae•• ClindamycineClindamycine
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AB use in USAAB use in USAPrevPrev. AB, or no improvement to AB, or severe symptoms. AB, or no improvement to AB, or severe symptoms•• Amoxicillin + Amoxicillin + ClavulanicClavulanic acidacid
oror•• CefdinirCefdinir•• CefuroximeCefuroxime•• CefpodoximeCefpodoxime•• CeftriaxoneCeftriaxone•• TrimetroprimTrimetroprim + + sulfamethoxazolesulfamethoxazoleNo improvement for 2No improvement for 2ndnd AB AB thth..
•• CeftriaxoneCeftriaxone i.vi.v..•• CefotaximeCefotaxime i.vi.v.. Consider ENT appointment.Consider ENT appointment.In ComplicationsIn Complications•• CeftriaxoneCeftriaxone i.vi.v..•• CefotaximeCefotaxime i.vi.v. . •• VancomycineVancomycine•• AmpicillinAmpicillin + + SulbactamSulbactam
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ComplicationsComplications
•• Soft tissue swellingSoft tissue swelling (upper eyelid(upper eyelid--frontal, lowerfrontal, lower--ethmoidethmoid, cheek, cheek--maxillary)maxillary)
•• Orbital Orbital ((periorbitalperiorbital oedemaoedema, , phlegmonephlegmone, , superiostealsuperiosteal--, , intraorbitalintraorbital abscess)abscess)
•• IntracranialIntracranial ((epiepi--, , subduralsubdural--, brain abscess, , brain abscess, cavernosuscavernosus sinus sinus trombosistrombosis, meningitis), meningitis)
•• OsteomyelitisOsteomyelitis of frontal bone (of frontal bone (Pott`sPott`s puffy tumor)puffy tumor)
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Chronic ???
&
Recurrent ???
Sinusitis
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Predisposing factors of chronicrhinosinusitis
•Repeated viral respiratory infections, •Allergic / non-allergic rhinitis,•Variations of nasal anatomy/or other factorsthat hinder normal air flow through the nose,
•Congenital or acquired immunodeficient sy.-s,•Mucociliary dyskinesias,•Cystic fibrosis,•Dental origin•Environmental pollution,•Thermic insult to nasal mucosa (AC …)
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Repeated AB Therapy
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• Minimal invasive surgical technique torestore ventillation, drainage andnormal function of the paranasalsinuses.
Functional Endoscopic Sinus Surgery
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Indication of FESS
in patients in whom medical therapy has failedin case of:
•chronic infective sinusitis•acute on chronic sinusitis•recurrent acut infective sinusitis
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WHY?FESS- minimal invasive BUT ! can be extremely harmful
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FESS
instruments
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Aim of FESS
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Summery
•How anatomy and physiology plays in the
pathogenesis of sinusitis.
•Different forms of sinusitis.
•Use of radiologic imaging.
•Recommended therapy of the different forms.
•Updates in the surgical managements.
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Thank you