Clinician handoff
Chronic Sinus & Nasal Problems
Designed for a 60-second scan in primary care. Use this to explain why this theory fits, what would weaken it, and which tests are most worth discussing.
Why this still fits
I have chronic nasal congestion with associated brain fog. A 2025 meta-analysis of 107,610 patients found CRS is associated with 9% poorer cognitive function, and treatment improves it. I would like referral to ENT for nasal endoscopy and to discuss whether my nasal obstruction is contributing to my cognitive symptoms.
What would weaken it
- -No chronic congestion, mouth breathing, sinus pressure, or poor-airflow story around the fog.
- -Sleep is objectively fine and nasal treatment changes nothing.
- -Sleep apnea, allergy, mold, or another cause explains the head pressure and cognition better.
Key points to communicate
- •I want to know whether poor nasal airflow and poor sleep quality are enough to explain the cognitive drop.
- •Please separate simple congestion from sleep apnea, mold, and chronic sinus disease.
- •If the airway is the signal, I want to know the most useful ENT or sleep-focused next steps.
Bring this to the visit
- •A description of nasal symptoms: congestion, mouth breathing, snoring, post-nasal drip.
- •Sleep quality data: do you breathe through your mouth at night? Partner observations of snoring?
- •Prior ENT evaluations, allergy testing, or sinus imaging.
- •Medication list including nasal sprays, antihistamines, and decongestants.
Useful screening structure
- -STOP-BANG or Epworth to screen for co-occurring sleep apnea or UARS.
- -SNOT-22 (Sino-Nasal Outcome Test) for structured symptom assessment.
- -Home sleep study if UARS is suspected - note that home tests may miss UARS.
Tests and measurements to discuss
Nasal endoscopy (ENT - visualise polyps, turbinates, septum)
SNOT-22 questionnaire (validated patient-reported outcome for baseline tracking)
CT sinuses with Lund-Mackay scoring (if endoscopy shows abnormalities)
Allergy testing - skin prick panel or specific IgE blood panel
Total IgE (elevated suggests allergic component or type 2 inflammation)
CBC with differential (elevated eosinophils suggest type 2 inflammation - relevant for biologic eligibility)
What this helps clarify: Core blood count panel used to review white cell patterns, hemoglobin, and platelet context.
Range context
Lab reference interval
How to use the result
Save the result with date and symptoms from the same week.
25-OH vitamin D level (deficiency associated with CRS severity)
What this helps clarify: Severe deficiency doubles dementia risk
Range context
40–60 ng/mL
How to use the result
Save the result with date and symptoms from the same week.
Sleep study (if mouth breathing/snoring - home HSAT or in-lab PSG based on symptoms)
What this helps clarify: Overnight polysomnography explainer framed around the patient-facing 'sleep study' language most people actually search.
Range context
Sleep report
How to use the result
Ask whether the goal is to rule in sleep apnea, UARS, or another sleep-disruption pattern.
Peak nasal inspiratory flow (PNIF - objective obstruction measure)
CT sinuses (if indicated)
Structural detail if endoscopy shows abnormalities.
What this helps clarify: Structural detail if endoscopy shows abnormalities.
Allergy testing (skin prick or IgE panel)
Guides allergen avoidance strategy.
What this helps clarify: Guides allergen avoidance strategy.
Questions to ask directly
- •Could my nasal obstruction be causing or worsening sleep-disordered breathing?
- •Should I get a formal sleep study, especially for UARS which home tests can miss?
- •Would nasal surgery, turbinate reduction, or septoplasty help the cognitive symptoms?
- •Are my current nasal medications adequate, or should we try a different approach?
Functional impact snapshot
- -Rate fog severity on mornings after mouth breathing vs nasal breathing nights.
- -Track whether nasal treatment (sprays, strips, rinsing) changes next-day cognitive function.
- -Note seasonal patterns - does the fog worsen with allergy seasons?
Escalate instead of self-managing if
- •Unilateral nasal obstruction with bloody discharge - needs ENT evaluation to rule out mass.
- •Severe daytime sleepiness with witnessed apneas suggesting undiagnosed sleep apnea.
- •Loss of smell lasting months with no improvement - may need neurological evaluation.
Peer-reviewed references
- 1. Gao EY et al. Chronic rhinosinusitis and cognition: a systematic review and meta-analysis. Rhinology. 2025;63(5):514-522. PMID: 40619980 [DOI]
- 2. Alt JA et al. Endoscopic Sinus Surgery Improves Cognitive Dysfunction in Patients with Chronic Rhinosinusitis. Int Forum Allergy Rhinol. 2016;6(12):1264-1272. PMID: 27384037 [DOI]
- 3. Rosenfeld RM et al. Clinical practice guideline (update): adult sinusitis. Otolaryngol Head Neck Surg. 2015;152(2 Suppl):S1-S39. PMID: 25832968 [DOI]