Showing posts with label Sinus. Show all posts
Showing posts with label Sinus. Show all posts

Friday, 17 May 2013

HILANG DERIA BAU (HYPOSMIA)

Deria bau adalah salah satu fungsi hidung. Di kawasan langit hidung terdapat saraf-saraf halus (olfactory nerves) yang dapat menghasilkan deria bau. Molekul-molekul bau dari pelbagai punca dapat merangsang saraf-saraf halus tersebut.
Pesakit boleh mengalami masalah kurang deria bau sekiranya hidung sumbat atau kerosakan pada saraf deria bau tersebut. Masalah deria bau terbahagi kepada separa atau kurang deria bau (hyposmia) atau kehilangan seluruh deria bau (anosmia).
Kebanyakan pesakit yang mempunyai masalah deria bau juga mengalami masalah deria rasa. Ia seringkali berkaitan tetapi ada juga pesakit yang mempunyai masalah deria rasa tetapi deria bau adalah normal.

Sistem deria bau (olfaktori) manusia terletak di bahagian atap hidung. 


Punca-punca kurang deria bau

  • Alahan hidung (allergic rhintis)
  • Polip hidung
  • Radang pada sinus (rhinosinusitis)
  • Ketumbuhan atau tumor di dalam rongga hidung
  • Toksin seperti kokain, asap rokok
  • Radang pada saraf deria bau (olfactory nerve) yang disebabkan oleh jangkitan virus, sarcoidosis, Wegener's granulomatosis
  • Masalah endokrin seperti penyakit diabetes/kencing manis, tiroid etc
  • Trauma kepada kepala
  • Proses penuaan
  • Masalah degeneratif seperti Parkinson's disease, Alzheimers
  • Sindrom Kallman




Thursday, 20 September 2012

SEPTOPLASTY AND TURBINATE SURGERY


Septoplasty is a surgical procedure to correct a deviated or crooked nasal septum. Patients often complain of nasal block and congestion, which can disturb their sleep. They may also have symptoms of rhinitis such as runny nose, sneezing and postnasal drip. Some patients have a deviated nasal septum as a result of trauma or blow to the nose. 

Turbinate surgery refers to a procedure performed to reduce the size of the enlarged nasal turbinates, which often contribute to the nasal block and congestion. There are many methods how the ENT surgeon reduce the size of the turbinates. Regardless of the surgical method used, the turbinates may slowly increase back in size if patients do not take care of their allergies.

The ENT surgeon may put the patient on a trial of medication which include nasal sprays and antihistamine to control their allergies. If the nasal block is still not relieved or minimally relieved with medication then septoplasty and turbinate surgery should be considered. However in severely deviated nasal septum especially post trauma, medication often bring little improvement. Septoplasty can also be indicated for recurrent epistaxis.

Complications of septoplasty and turbinate surgery are uncommon however patients should be aware of the possible complications including bleeding, infection, nasal crusting, numbness and septal perforation.

General care after septoplasty and turbinate surgery

The nose may be packed after surgery and patients are warned to breathe through their mouth upon waking up from surgery. The nasal pack is usually removed the following day after surgery. Following nasal pack removal, patients should expect bloodstained nasal secretions for a few days. Patients should not blow their nose for about 10-14 days. When sneezing, patients should keep their mouth open to reduce built-up pressure in the nose.

Patients may also experience swelling and pain around the nose including numbness of the upper teeth; which usually resolve in a few weeks. 

Patients are advised to take light soft cool diet when awake after surgery. Hot food and drinks are to be avoided for a few days after surgery.

Patients should rest with their head elevated on 2-3 pillows to reduce swelling around the nose area. Patient should also avoid straining and lifting heavy objects to reduce risk of bleeding.

Medications that can thin the blood, such as Aspirin and Warfarin, should be avoided until advised by the ENT surgeon.

The ENT surgeon would often prescribe nasal douching where patients will flush the nasal cavities using saline irrigation for a few weeks. This will ensure good healing and prevent formation of dried crusts or blood clots. Patients will also be prescribed with a course antibiotic that should be completed.

Patients are also expected to take some time off until the doctor says it is safe to return back to work. Patient should refrain from smoking or exposure to smoky areas as this can impair healing and cause further irritation to the nose.

When should you see your ENT surgeon urgently?
  • Continuous bleeding despite nasal compression and ice
  • Increasing swelling over the nose and eyes 
  • Persistent high grade fever >38 Celcius
  • Severe pain or headache not relieved by the pain medication given.

Friday, 13 January 2012

ALLERGY AND ALLERGIC RHINITIS

What is allergy?
Allergy is the body’s reaction to certain substances (allergen) that brings about symptoms of itchiness, rash and swelling. The symptoms are commonly mild but rarely can be life threatening (anaphylaxis). Allergic reaction is unique to each person. Conditions such as asthma, frequent upper respiratory tract infection, nasal polyps, eczema are commonly associated with allergy.  

Risk of developing allergy
The development of allergy is a complex interaction of genetic factors and environmental factors. The increasing rise of pollution has been associated with increased risk of developing allergies. Family history of allergies will also put a person at risk. On the other hand, breastfeeding has been associated with reduced incidence of developing allergies.

Diagnosis of allergies
A full history of allergy is obtained to ascertain the diagnosis. Diagnostic tests which can help to determine the allergens include skin prick test, contact patch testing and RAST blood test.

Allergic rhinitis
Allergic rhinitis is one of the manifestations of allergy. The main symptoms are stuffy blocked nose, sneezing, runny nose and itchiness. The itchiness can also affect the eyes. It is commonly associated with asthma. Patients often notice that the asthma symptoms improve when there is better control of rhinitis symptoms. Common triggering factors (allergens) include house dust mite, cockroaches, pet dander, mould and certain seafood.

Treatment of allergic rhinitis
First and foremost is AVOIDANCE. Avoiding the triggering factors will ensure better control of allergy symptoms. However some patients require medical treatment depending on the severity of the symptoms. Treatment which may be suggested by your doctor would include antihistamines and nasal sprays. The response to treatment should be closely monitored.

How to get rid of house dust mites?
House dust mites are everywhere especially in mattresses, pillows, carpets and upholstered furniture. It thrives in humid environment and warm temperatures. They are too small to be seen with the naked eye and feed on dead human shedded skin.





Suggested ways to get rid of them:
·         Use allergy proof mattress and pillow encasings
·         Wash sheets, pillows, blankets, soft toys once a week in hot water and dry in a clothes dryer
·         Vacuum regularly with vacuum cleaners with HEPA filter
·         Dust furniture with damn cloth