![]() ![]() However, the outcome was also recorded in the database, as dead or discharged. No data were available about the hospital course of the patients (e.g., laboratory test results, management, complications). Underlying chronic health problems were also collected (self‐declared) (i.e., liver, cardiac, renal, or neurological, and also diabetes mellitus, cancer, hypertension, pulmonary disorders). Other collected data included: Real‐time PCR test results and admission to a hospital ward (i.e., COVID‐specific ward, intensive care unit, or others). Also, we scrutinized the potential risk factors associated with the development of brain fog in a large cohort of patients with documented COVID‐19 to add to the existing literature.įor all patients, the following data were collected at the emergency room by the admitting physician: sex, age, presence of fever, respiratory distress, muscle pain, cough, change in mental status, loss of smell, dizziness, headache, nausea, vomiting, abdominal pain, and anorexia. In the current study, we investigated the frequency of LCS‐associated brain fog in patients who have survived the COVID‐19. 10 As physicians, we have been hearing from many survivors of COVID‐19 who are complaining of “brain fog” after recovering from the illness. 9 It affects one's ability to think or concentrate. 6, 7, 8 Brain fog is a general term used to describe the feeling of being mentally slow, fuzzy, or spaced out. 5 However, other long‐term effects of the COVID‐19 on the brain may be subtler persistent impairment in sustained attention or cognition are two examples. 4ĬOVID‐19 may damage the brain in various ways encephalitis and cerebrovascular accidents have been reported in the literature before. 2 The National Institute for Health and Clinical Excellence, the Scottish Intercollegiate Guidelines Network, and the Royal College of General Practitioners have jointly developed the following definition for the post‐COVID syndrome: “signs and symptoms that develop during or after an infection consistent with COVID‐19, continue for more than 12 weeks, and are not explained by an alternative diagnosis.” 3 Some other experts have considered the persistence of symptoms (e.g., fatigue, memory problems, breathlessness, muscle pain that could not be attributed to any other cause) beyond 2 weeks for mild disease, beyond 4 weeks for moderate to severe illness, and beyond 6 weeks for critically ill patients as “long COVID syndrome” (LCS). 1 Many people, who survived the COVID‐19, have reported a variety of persistent signs and symptoms after the acute phase of the disease. While during the early stages of the pandemic people were largely concerned by its risk of death and later on everybody recognized the psychosocial consequences of the pandemic, recently, the postacute phase lingering symptoms of the disease has attracted attention. It has been more than 18 months since the start of the coronavirus disease‐2019 (COVID‐19) pandemic. In this large population‐based study, we report that chronic post‐COVID “brain fog” has significant associations with sex (female), respiratory symptoms at the onset, and the severity of the illness (ICU admission). Female sex (odds ratio : 1.4), respiratory problems at the onset (OR: 1.9), and intensive care unit (ICU) admission (OR: 1.7) were significantly associated with reporting chronic post‐COVID “brain fog” by the patients. ![]() LCS‐associated brain fog was reported by 194 (7.2%) patients. In total, 2696 patients had the inclusion criteria 1680 (62.3%) people reported long COVID syndrome (LCS). A questionnaire was specifically designed for data collection. ![]() In a phone call, at least 3 months after their discharge from the hospital, we obtained their current information. All patients had a confirmed COVID‐19 diagnosis. Adult patients (18–55 years of age), who were referred to the healthcare facilities anywhere in Fars province from Februto Novemwere included. ![]() We also scrutinized the potential risk factors associated with the development of brain fog. We investigated the frequency of brain fog in a large cohort of patients with documented coronavirus disease‐2019 (COVID‐19) who have survived the illness. ![]()
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