Conducting the research, Assoc. Dr. Aysegul BATIOĞLU KARAALTIN ​​said, “China and the Far East Kovid due to the smell or taste disorders, while 15 to 30 percent of patients seen in Turkey, this ratio goes up to 80 percent of patients in the Middle East and Europe. Although the reason is not known exactly, it can be considered as a reason that those in this region are infected with different virus strains (different generations of viruses) than those in the Far East.

One of the most common complaints among those with Covid-19 is smell and taste disturbances. Some patients only have complaints of not being able to smell and taste, while others have complaints of different odor or taste since it is like rotten egg odor. According to a study in which approximately 2 thousand patients were included since the first wave of the pandemic started in March, the rate of loss of smell and taste in our country doubles the cases in China and the Far East. Istanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, Department of Otorhinolaryngology, Assoc. Dr. According to the study conducted by Ayşegül Batıoğlu Karaaltın and her team, the rate of smell and taste disturbance in patients with Covidia reaches up to 44 percent. Assoc. Dr. The KARAALTIN, Turkey this rate, he could go up to 80 per cent in Europe and the Middle East.


Assoc. Dr. KARAALTIN’s, in patients in Turkey, according to the literature stating that interest rates similar to Europe and the Middle East, “during the first wave of the pandemic, in particular, we want to investigate it, we start to see patients with smell loss. Studies on this had begun to come from the world. We wanted to see how often this loss of smell is seen in Turkish society and with what symptoms the patients come to us. We conducted a study involving about 2 thousand patients. We asked patients who were confirmed to be COVID positive by PCR to describe their odor loss by asking some questions. Indeed, a different rate of odor loss was observed in Turkish society compared to Far Eastern society. We have a ratio mostly close to Europe and the Middle East. The loss of smell and taste often go together. There are literature studies that have been described between the 30s and the 80s in the European and Middle Eastern regions. In our studies, a loss of smell and taste was observed in the range of 44 percent. The rate of patients with only loss of smell was 36 percent. We know that the rate of odor loss or odor disorders in the Far East and China is around 15-30 percent. Turkey, the Middle East and 60 percent in Europe this rate, we know that even up to 80. Clearly the reason for this has not been revealed, but it may be because it is infected with different strains of viruses. “


Explaining that in the Kovid pandemic, it is impossible to test patients one by one odor, Assoc. Dr. Karaaltın said, “Because there is no disposable odor test for every patient. We used some interrogation tests that could be as valuable as odor tests, as using the same odor test on several patients would pose a risk for Covid infectiousness. Rather than just asking whether or not you smell, or how much you smell, we questioned specific smells. Thus, we tried to reveal how much odor loss there is. We can describe the odor disorder as both the loss of odor and the perception of different odors. We also had patients with 5% parosmia complaints of different perception of odor. Likewise, we have had patients with complaints such as perception of different tastes. There are perception complaints such as bad egg odor, spoiled food odor. Or they express that they perceive different smells differently ”.


Pointing out that odor disorders are mostly seen by patients in the recovery period of Kovid, in fact, it started as a symptom of the disease in the early days of the epidemic, Assoc. Dr. Karaaltın said, “Although it has always been described in the recovery period recently, in fact, we had patients who came with different smell complaints and were diagnosed with Kovid in addition to the loss of smell in the smell disorders. According to our study, smell disorders basically heal in 4 to 7 days. Up to 15 days, 70 percent of the patients get better. The recovery rate in the first month is around 90 percent. However, we have a group of patients who say that they had the disease at the beginning of the Kovid period (in the first wave) and still suffered these losses. “I have patients who say the existence of these complaints, which I have been following for almost 6 to 8 months,” he said.


Pointing out that the real cause of odor disorder is not known much, Assoc. Dr. Karaaltın said: “Normally, the main reason for the odor disorders that occur after many postviral viral infections are strictures and obstructions in the airways. But in Kovid, there is an odor disorder that occurs even though there is no congestion in the nose. It is thought that the smell disorder occurs as a result of the large number of ACE receptors we all know in the olfactory region and the fact that the virus can easily bind to it. But here is the pathogenesis, that is, the underlying cause, is it the defect in the cells or the damage they cause there; There is no study yet that fully demonstrates it. In fact, these will also show us basically how we should adopt treatment approaches. “


Emphasizing that it is very wrong for patients to offer different suggestions to each other in terms of smell disorders, loss of smell and different smell, Assoc. Dr. Karaaltın pointed out that especially the drug and vitamin suggestions are very dangerous and ended his words as follows: “Frankly, we do not recommend taking extra vitamins, medicines, etc. unless you have a cure for this. Instead, patients should do the recommended scent exercises under the follow-up of an ENT specialist. After the ear nose throat examination, we smell certain odors to our patients under the supervision of the doctor. We start with 4 fragrances in the first place. We try to re-stimulate the nerve endings and receptors in that area by sniffing, taking deep breaths, inhaling it with a single breath, and allowing the scent to reach the olfactory area, in other words, the olfactory area, over and over again at certain times during the day. One of the main things is that patients with loss of smell are more likely to be patients with lighter foot pass. Again, this is the same in the world literature. Patients with mild illness have more odor disorders. Patients who are inpatient or have severe illness with many comorbidities have less odor disturbance. “

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