Publications by authors named "Hossein Kazemizadeh"

Opportunistic fungal infections (OFIs) are common among human immunodeficiency virus (HIV) -positive patients, especially in those with delayed diagnosis and treatment. Patients with severe HIV/AIDS with clusters of differentiation 4 (CD4) counts less than 100 are significantly prone to develop multiple OFIs. In the current study, we present a case of co-infection of pulmonary aspergillosis and cryptococcal meningitis in a late-diagnosed HIV patient with a low CD4 count.

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Systemic lupus erythematosus (SLE) can involve the respiratory system through various manifestations, including the rare pulmonary complication known as shrinking lung syndrome (SLS). SLS is characterised by progressive dyspnoea, pleuritic chest pain, diaphragmatic elevation, reduced lung volumes, a restrictive pattern on pulmonary function tests, and decreased diffusing capacity for carbon monoxide. Diagnosing SLS is challenging, as it requires ruling out interstitial lung disease and significant pleural pathology.

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Although rarely reported, endobronchial ultrasound (EBUS) can reveal unexpected vascular findings such as pulmonary thromboembolism. Systematic evaluation of pulmonary arteries during EBUS may identify central emboli, enabling timely diagnosis and treatment.

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Objectives: Stenting is a method of controlling airway occlusions (CAO) that can be used alone or in combination with other treatments. There are different types of airway stents. One of the most widely used types is silicone stent.

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It is widely believed that Silybum marianum (Silymarin) alleviates liver injury arising from various etiologies with different degrees of damage through its anti-inflammatory and antioxidant activities. This meta-analysis investigated the effects of silymarin administration on serum levels of liver enzymes including AST, ALT and ALP. From inception to November, 2023, a comprehensive literature search was conducted.

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Purpose: To provide a comprehensive review of sleep disturbances in hospitalized patients, focusing on a case-based approach to illustrate the multifaceted nature of this clinical challenge.

Method: An extensive review of related literature was conducted to determine the common causes of sleep disturbances in hospitalized patients, such as environmental, medical, psychological, and physiological factors. The case of Mrs.

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Introduction: We examined the association of blood eosinophil counts at the time of AECOPD hospitalization with the risk of ICU admission as well as the hospital lengths of stay and mortality.

Methods: In the current retrospective study, the association between blood eosinophil counts in COPD patients at the time of AECOPD hospitalization and the risk of subsequent ICU admission as well as mortality was assessed. The chi-squared test and t-test were used to compare categorical and continuous variables.

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Primary ciliary dyskinesia (PCD) is a rare autosomal recessive disorder characterized by dysfunction of motile cilia in various organ systems, including the respiratory and reproductive tracts. A key manifestation in males is infertility, primarily attributed to impaired sperm motility. Although sperm vitality may be preserved, immotility or abnormal flagellar function significantly impairs natural conception.

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Background: Cystic fibrosis (CF) is an autosomal recessive hereditary disease causes concentration of secretions and this affects the lungs and digestive system. These patients are exposed to zinc (zn) deficiency. In this review, we decided to investigate the status of zn in CF patients compared to control group.

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The visualization of black pigment during EBUS-TBNA suggests a relapse of melanoma. This case highlights the value of EBUS-TBNA in diagnosing metastatic melanoma, particularly when the macroscopic appearance of the aspirate suggests the diagnosis.

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Insertion of a nasogastric tube (NGT) is generally considered safe; however, it is not without risk, and in cases of misplacement, complications and even death may occur. In this article, we reported a case of NGT misplacement in a 75-year-old male, which resulted in aspiration pneumonia. We also reviewed published cases of NGT misplacement.

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Pulmonary hydatid disease remains a global public health issue. Symptoms often result from cyst rupture, causing fever, cough, and hemoptysis. Radiographs may show homogeneous masses, air-fluid levels, or the pathognomonic "water lily" sign.

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Article Synopsis
  • Common complications after pectus excavatum (PE) surgery, such as ventricular tachycardia and cardiac arrest, underscore the importance of careful post-operative monitoring and patient education regarding potential risks.
  • The study aims to enhance awareness among medical professionals about the serious, though rare, complications linked to PE surgery, which often stems from cosmetic concerns but may also address exercise intolerance and shortness of breath.
  • A systematic review revealed various complications, including some fatal cases, emphasizing that surgeons should be particularly cautious, especially in surgeries motivated by cosmetic reasons.
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Article Synopsis
  • - Kartagener syndrome is a rare genetic disorder that can cause ongoing respiratory issues and specific changes in imaging, like bronchiectasis and situs inversus.
  • - Adults with this condition often experience persistent respiratory symptoms that should raise clinical suspicion among healthcare providers.
  • - Early diagnosis and proper treatment are essential to help protect lung function and improve quality of life for those affected.
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Article Synopsis
  • - This study examines the risk of spontaneous pneumothorax in COVID-19 patients, focusing on demographic, clinical, and radiological data, along with survival predictors from a sample of 67 hospitalized cases from December 2021 to March 2022.
  • - Key findings indicate that pneumothorax was most commonly found in the left or right lung, with symptoms including dyspnea, cough, chest pain, and hemoptysis; treatment predominantly involved chest drains, with a 50-day mortality rate of 52.2%.
  • - The research highlights that patients with pleural effusion or pulmonary bullae experience lower survival rates, suggesting the need for further studies to explore the relationship between COVID-19 and pneum
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As the largest cause of cancer-related deaths worldwide, pulmonary cancer is the most common form of the disease. Several genetic, epigenetic, and environmental factors come into play during the multi-step mechanism of tumorigenesis. The heterogeneity that makes discovering successful therapeutics for pulmonary cancer problematic is significantly influenced by the epigenetic landscape, including DNA methylation, chromatin architecture, histone modifications, and noncoding RNA control.

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The prevalence of non-small-cell lung cancer (NSCLC) is rising every year all around the world. The interaction between cancer cells and the tumor microenvironment (TME) is a crucial factor in determining the development of human neoplasms. Organellar and cellular stress are induced during immunogenic cell death (ICD), a particularly functional response pattern.

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Background: The COVID-19 pandemic has created new conditions for medical staff, forcing them to use personal protective equipment (PPE) for an extended duration of time. Headache is a commonly associated side effect of the use of such equipment among healthcare workers.

Method: In this cross-sectional study, 243 frontline healthcare workers at four referral hospitals for COVID-19 were evaluated for the occurrence of headache following the use of PPE and its relationship with blood gas parameters was assessed.

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Introduction: The COVID-19 pandemic has caused significant morbidity and mortality thus far. Considering the historical uses of high-voltage X-ray beams for unresolvable pneumonia, we aimed to assess whether low-dose whole-lung irradiation (WLI) could provide any benefits for patients with refractory COVID-19 pneumonia.

Methods: Eleven patients with refractory COVID-19 pneumonia were treated with WLI to a total dose of 1 Gy and compared to 11 patients in a matched control group from June to November 2020.

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Severe COVID-19 patients complicated with aspergillosis are increasingly reported. We present a histopathological proven case of fatal COVID-19-associated pulmonary aspergillosis (CAPA), due to Aspergillus flavus. This report and existing published literature indicate diagnostic challenges and poor outcomes of CAPA in ICU patients.

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Article Synopsis
  • The study analyzed 905 hospitalized COVID-19 patients in Tehran, focusing on their clinical characteristics and outcomes during a specific time frame (February 20 - March 19).
  • The average age was 56.9 years, with common symptoms including fever, dry cough, and dyspnea, and notable findings showed a high prevalence of lymphopenia and elevated LDH/CRP levels.
  • Key findings indicated that older age, severity of the disease, and existing comorbidities were significant predictors of mortality, while hydroxychloroquine treatment showed no associations with survival rates.
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