Abstract:
STUDY OBJECTIVES:Obstructive sleep apnea (OSA) is common in adult populations. Accumulating data indicate that it is independently associated with a variety of cardiovascular diseases and has prognostic importance in affected cases. In this study, we aimed to evaluate coronary flow reserve (CFR) in patients with OSA and controls. METHODS:Sixty-one patients undergoing an overnight polysomnography were enrolled in this study. Patients with an apnea-hypopnea index (AHI) >5 were accepted as OSA group (n = 45) and those with an AHI <5 were taken as controls (n = 16). Using Doppler echocardiography at baseline and following dipyridamole infusion, coronary peak flow velocities were obtained. CFR was calculated as the ratio of peak diastolic flow to baseline diastolic flow. A CFR value <2 was accepted as impaired coronary microvascular function. RESULTS:The mean age was 50.8 ± 10.8 years, of which 16 (26.2%) were female. Both groups had similar features with regard to demographic and clinical variables. The mean value of CFR was significantly lower in patients with OSA compared to those controls (2.24 ± 0.46 vs. 2.74 ± 0.62, respectively, P = 0.001). An abnormal CFR value was observed in 12 (26.7%) patients with OSA and in 1 (6.3%) participant in control group. CONCLUSIONS:The findings of this study indicate that CFR, an indicator of coronary microvascular function, is significantly impaired in patients with OSA. Coronary microvascular function, an early sign of atherosclerosis, can be evaluated noninvasively in these patients might be used as a predictor of cardiovascular risk.
journal_name
Ann Thorac Medjournal_title
Annals of thoracic medicineauthors
Bozbas SS,Eroglu S,Ozyurek BA,Eyuboglu FOdoi
10.4103/atm.ATM_195_16subject
Has Abstractpub_date
2017-10-01 00:00:00pages
272-277issue
4eissn
1817-1737issn
1998-3557pii
ATM-12-272journal_volume
12pub_type
杂志文章abstract:OBJECTIVE:Gefitinib, a small molecule tyrosine kinase inhibitor, showed a substantial effect as a salvage treatment for patients with advanced non-small cell lung cancer (NSCLC) who had failed prior chemotherapy. Subsequent phase III trials in previously untreated patients have failed to demonstrate such benefit. It wa...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.65047
更新日期:2010-07-01 00:00:00
abstract:CONTEXT:Asthma is a chronic airway disorder which is associated to the inflammatory cells. Inflammatory and immune cells generate more reactive oxygen species in patients suffering from asthma which leads to tissue injury. AIMS:To investigate the role of oxidant-antioxidant imbalance in disease progression of asthmati...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.102182
更新日期:2012-10-01 00:00:00
abstract::Chronic liver disease is one of the leading causes of mortality and morbidity in the worldwide adult population. Liver transplant is the gold standard therapy for end-stage liver disease and many patients are on the waiting list for a transplant. A variety of pulmonary disorders are encountered in cirrhotic patients. ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.82436
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Osteoporosis, the most common extra-pulmonary complication of chronic obstructive pulmonary disease (COPD), may be related to general causes or COPD-specific causes such as low forced expiratory volume in 1 s (FEV1) and hypoxia. A few studies reported that emphysema is an independent risk factor for osteopor...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_357_16
更新日期:2017-04-01 00:00:00
abstract::Pulmonary rehabilitation (PR) is an integral component of the comprehensive management plan of patients with chronic lung diseases by addressing their functional and psychological deficits. PR is generally recommended to symptomatic patients with chronic lung diseases who develop shortness of breath on their own pace ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章,评审
doi:10.4103/1817-1737.124408
更新日期:2014-01-01 00:00:00
abstract::There is a worldwide drive for the home management of chronic respiratory diseases. With the widespread use of home intravenous (IV) treatment for cystic fibrosis (CF) pulmonary exacerbations (PExs), evidence pointing to an inferior outcome of care for home-treated patients in comparison to hospital-treated patients i...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.53346
更新日期:2009-07-01 00:00:00
abstract:INTRODUCTION:Right ventricular strain (RVS) in pulmonary embolism (PE) can be used to stratify risk and direct intervention. The clinical significance of computed tomography pulmonary angiogram (CTPA)-derived radiologic signs of RVS, however, remains incompletely characterized. We retrospectively analyzed a cohort of p...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_264_19
更新日期:2020-04-01 00:00:00
abstract:INTRODUCTION:Fiber-optic bronchoscopy (FOB) with bronchoalveolar lavage (BAL) is a common procedure performed in immunocompromised patients with undiagnosed pulmonary pathology. Identifying patients with the highest potential diagnostic yield may help to avoid morbidity in patients unlikely to benefit from the procedur...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.114302
更新日期:2013-07-01 00:00:00
abstract:INTRODUCTION:Ventilator-associated pneumonia (VAP) is one of the most serious hospital-acquired infections to occur among mechanically ventilated patients. Many risk factors for VAP have been identified in the literature; however, there is a lack of studies examining the association between endotracheal tube (ETT) repo...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_26_19
更新日期:2019-10-01 00:00:00
abstract:INTRODUCTION:Prolonged use of oral corticosteroids is a risk factor for osteoporosis. However, the effect of inhaled corticosteroids (ICS) on bone mineral density (BMD) of asthmatic patients remains controversial. OBJECTIVES:We aimed to determine the prevalence of osteopenia and osteoporosis in our patients with asthm...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.94522
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Adequate sleep has been considered important for the adolescent's health and well being. On the other hand, self-imposed sleep curtailment is now recognized as a potentially important and novel risk factor for obesity. The present study aimed to assess the prevalence of short sleep duration and its associati...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.98845
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:For patients that are expected to survive for longer, the risk of complications combined with the need for more vacuum drainage bottles have become barriers to the placement of indwelling pleural catheter (IPC), since these could increase costs. OBJETIVES:The objective of the current article is to determine...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.160837
更新日期:2015-07-01 00:00:00
abstract::The Saudi Initiative for Asthma (SINA) provides up-to-date guidelines for healthcare workers managing patients with asthma. SINA was developed by a panel of Saudi experts with respectable academic backgrounds and long-standing experience in the field. SINA is founded on the latest available evidence, local literature,...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.56001
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:There is limited data about the performance of QuantiFERON-TB Gold (QFT-G) test in detecting latent tuberculosis infection (LTBI) in our region. We intended to determine the performance of QFT-G compared to conventional tuberculin skin test (TST) in detecting LTBI in HIV-positive individuals in Iran. METHOD...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.58959
更新日期:2010-01-01 00:00:00
abstract::This paper summarizes the roundtable discussion from the Second International Patient Safety Conference held in April 9-11, 2013, Riyadh, Saudi Arabia. The objectives of the roundtable discussion were to: (1) review the conceptual framework for building capacity in quality and safety in critical care. (2) examine exam...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.118480
更新日期:2013-10-01 00:00:00
abstract::Chronic cough is associated with repetitive injury to the upper airway and trachea, which can lead to an underdiagnosed pathology known as "cough-induced" laryngotracheitis (CILT). In this report, we describe a case of CILT that responded well to dual therapy. ...
journal_title:Annals of thoracic medicine
pub_type:
doi:10.4103/atm.ATM_21_18
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:Pulmonary arterial hypertension (PAH) is a major cause of morbidity and mortality in patients with systemic sclerosis (SSc). The objective of this study is to describe the clinical characteristics, mortality, and predictors of SSc-PAH in Saudi patients. METHODS:Retrospective chart review study of SSc patien...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_33_18
更新日期:2019-01-01 00:00:00
abstract::Hereditary hemoglobin disorders affecting the globin chain synthesis namely thalassemia syndromes and sickle cell disease (SCD) are the most common genetic disorders in human. Around 7% of the world population carries genes for these disorders, mainly the Mediterranean Basin, Middle and Far East, and Sub-Saharan Afric...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.134039
更新日期:2014-07-01 00:00:00
abstract::A 12-hour-old male infant presented with prolapsed abdominal content through a defect on left side of chest wall with respiratory distress. A thorough clinical examination suggested absence of ectopia cordis, abdominal wall defect, and any bony anomaly. The child expired after 6 hours of admission because of respirato...
journal_title:Annals of thoracic medicine
pub_type:
doi:10.4103/1817-1737.41916
更新日期:2008-07-01 00:00:00
abstract::Tracheobronchial obstruction along with compression of pulmonary vessels is a rare complication after stenting of aortic aneurysm. We present this rare situation in a young patient who underwent stenting of traumatic thoracic aortic aneurysm and developed this near fatal complication and also the conservative manageme...
journal_title:Annals of thoracic medicine
pub_type:
doi:10.4103/1817-1737.74275
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:The IL-4 receptor alpha subunit (IL-4Rα), when associated with the common gamma chain receptor, or the IL-13Rα1 subunit, transduces signals to STAT6 in response to IL-4 and IL-13 stimulations. This results in a number of cell-specific responses including Th2 differentiation, lymphocyte proliferation and IgE ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.128849
更新日期:2014-04-01 00:00:00
abstract::Pulmonary hypertension (PH) in the Intensive Care Unit (ICU) may be due to preexisting pulmonary vascular lung disease, liver disease, or cardiac diseases. PH also may be caused by critical illnesses, such as acute respiratory distress syndrome (ARDS), acute left ventricular dysfunction and pulmonary embolism, or may ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.134056
更新日期:2014-07-01 00:00:00
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journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.140130
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Videothoracoscopic surgery leads to general organ hypoperfusion by reducing mean arterial pressure, systemic vascular resistance, and end-diastolic volume index. Oxidative stress occurs as a result of hypoperfusion. Evaluation of the short-term effects of videothoracoscopic sympathectomy on serum ischemia-mo...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.172298
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND/OBJECTIVES:The goal of the study was to assess asthma control using asthma control test (ACT) and to explore the factors that effects asthma control among participants with bronchial asthma in the outpatient clinic setting. METHODS:This cross-sectional descriptive study was conducted in the outpatient prima...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.152450
更新日期:2015-04-01 00:00:00
abstract::A 21-year-old primigravida, at 32 weeks of gestation, presented with acute onset of respiratory failure and circulatory shock. Chest imaging showed findings suggestive of ruptured hydatid cyst, which was confirmed by histology post-thoracotomy. Tissue cultures from the removed cyst grew Mycobacterium tuberculosis also...
journal_title:Annals of thoracic medicine
pub_type:
doi:10.4103/1817-1737.32234
更新日期:2007-04-01 00:00:00
abstract:AIMS:We hypothesized that if we control for food composition, caloric intake, light exposure, sleep schedule, and exercise, intermittent fasting would not influence the circadian pattern of melatonin. Therefore, we designed this study to assess the effect of intermittent fasting on the circadian pattern of melatonin. ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_15_17
更新日期:2017-07-01 00:00:00
abstract::Pulmonary tumor thromboembolism is well described in literature especially in patients known to have cancer. We are presenting this report of a patient presenting with Acute Cor-pulmonale secondary to Occult Gastric carcinoma causing pulmonary tumor embolism. This is an unusual presentation of occult neoplasm. ...
journal_title:Annals of thoracic medicine
pub_type:
doi:10.4103/1817-1737.36553
更新日期:2007-10-01 00:00:00
abstract:INTRODUCTION:Treatment-emergent central sleep apnea (TECSA) is the appearance of central apneas and hypopneas after significant resolution of the obstructive events has been attained using positive airway pressure (PAP) therapy. The aim of the study was to determine the prevalence of TECSA and to understand what factor...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/1817-1737.185761
更新日期:2016-07-01 00:00:00
abstract:AIMS:The aim of the study was to evaluate the clinical utility and safety of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in patients with mediastinal and hilar lymphadenopathy and to explicitly describe the utility of this procedure in patient's outcome. METHODS:A retrospective review ...
journal_title:Annals of thoracic medicine
pub_type: 杂志文章
doi:10.4103/atm.ATM_317_17
更新日期:2018-04-01 00:00:00