Any infection is the balance between bacterial virulence, i.e., the power of destroying the body and spreading its population and immunity, which produces antibodies to damage the bacterial wall and killer cells (polymorphs and macrophages) that engulf the bacteria and kill them. When the gross difference between these gets worse, the disease spreads faster and results in complications.
Complications of sinusitis are rare and do not occur if proper care and medication are taken on time.
Although most complications occur in untreated chronic sinusitis, there is a very low possibility of complications in acute sinusitis. The difficulties in acute sinusitis can also occur in "acute on chronic" sinusitis.
Complications in Acute Sinusitis & Acute on Chronic Sinusitis
When the immunity is down for acute sinusitis or acute on chronic sinusitis, the barriers to the infection produced by the body are broken, and the bacteria goes beyond the sinuses affecting adjacent structures like the eye, teeth, and brain.
Thankfully this generally happens in one in one lakh or hundred thousand of the population. But these complications occur during seasonal change or during the COVID-19 pandemic when the body's immunity gets affected. Anything that reduces immunity can cause these complications. This could include stress too.
Example of Sinusitis Complications due to Stress
A patient got into an accident where he had 2 to 3 fractures, and his immunity got down due to stress. He had pre-existing chronic sinusitis, which turned into "Acute on Chronic" sinusitis. He got acute sinusitis complications.
Similarly, even pregnancy can downgrade a person's immunity and turn their chronic into "acute on chronic."
There have been instances where people had complications after their exams too.
1. Eye Complications - Orbital Cellulitis & Orbital Abscess
When the sinus infection attacks the eye, it is called orbital cellulitis.
Orbital cellulitis increases the infection and chemical mediators that create pain, swelling, and loss of function. This pain doesn't respond to regular painkillers.
This orbital cellulitis progresses to an orbital abscess, and an abscess is a space-occupying lesion. An orbital abscess is a collection of pus in a localized area. Space is occupied, restriction of eye movement is caused, and blood supply to the optic nerve drops due to the pressure created by an abscess. If the blood supply to the optic nerve is cut off, the nerve dies, resulting in loss of vision.
Dr. K. R. Meghanadh says, "Orbital cellulitis is like fire, and an orbital abscess is like smoke left by it. Both fire and smoke are dangerous. One burns and the other suffocates."
So, the complications that can occur in the eye can be summarized to
pain in the eye
swelling in the eye
loss of vision
restriction in eye movement
damage of the optic nerve
2. Brain Complications
The spread of infection from orbit to the brain is very easy due to proximity. The disease can even spread to the brain, directly surpassing the eye.
When it spreads to the brain, a person can experience
vomiting
the rise in blood pressure
drop in heart rate
high fever
seizures
coma
death
Meningitis
This can result in high-grade fever and a rise in pressure inside cranial contents, i.e., pressure in the skull. This results in vomiting, a rise in blood pressure, drop in heart rate as the infection spreads to the covering of the brain; it is called Meningitis.
Encephalitis
If it spreads to the contents of the brain, it becomes Encephalitis. Encephalitis causes seizures, a high fever, and coma followed by death.
Complications in Chronic Sinusitis
The thick bacterial phlegm in sinuses, when it goes into the throat or ear through the nasopharynx, i.e., the back of the nose, can cause complications.
During the day, when this phlegm or fluids go into our throat, we tend to swallow, and acids in our stomach kill this bacteria. But, during deep sleep, the absence of these swallowing movements will give these fluids way to the voice box, lungs, and ear.
Laryngitis
Infection in the voice box is called laryngitis. It results in
Hoarseness
Change in voice
Pain in throat
Pain while talking
Inaudible voice
Dry cough
Fever
Bronchitis & Pneumonia
If the phlegm in the sinuses goes into the lungs, it can cause bronchitis and pneumonia. This causes
severe dry cough
breathlessness
asthmatic attacks
noisy breathing
chest pain
Otitis Media
When we lay down position, it is convenient for the phlegm to go from the nasopharynx to the middle ear through the auditory tube, causing a middle ear infection that can result in
ear block sensation
ear pain
mild deafness
ear discharge
Even then, if the middle ear infection is not treated, it can spread to the inner ear, causing symptoms like
vertigo
giddiness
abnormal sounds in the ear called tinnitus.
FAQs
What happens if sinusitis is left untreated?
If sinusitis is left untreated, it can heal itself in most cases. But it might result in complications and can even convert into fungal sinusitis. Complications and fungal sinusitis can be avoided if sinusitis is treated and not neglected. These complications can occur in any stage of sinusitis. These complications can affect the
ears
eyes
voice box
lungs
brain
The above article clearly explains every complication due to this disease.
Can sinusitis affect the brain?
Yes, sinusitis can affect the brain in the acute or "acute on chronic" sinusitis stages, especially when a person's immunity is under attack. Both meningitis and encephalitis can occur due to sinusitis.
Read the "Brain Complications" section to know more.
How serious is chronic sinusitis?
Chronic sinusitis can become serious when complications arise, despite having fewer symptoms. The complications in this stage can affect the voice box, ears, and lungs. Furthermore, if your immune system is compromised, it will become acute on chronic sinusitis, impacting your daily life.
What is the most common complication of sinusitis?
The most common complications of sinusitis are the complications that occur in chronic sinusitis. These complications are laryngitis, otitis media, bronchitis, and pneumonia.
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