Hematocrit levels in sleep apnea.

abstract：BACKGROUND:There remains debate over the best invasive diagnostic modality for mediastinal nodal evaluation. Prior studies have limited generalizability and insufficient power to detect differences in rare adverse events. We compared the risks and costs of endobronchial ultrasound (EBUS)-guided nodal aspiration and med...

journal_title：Chest

authors： Verdial FC,Berfield KS,Wood DE,Mulligan MS,Roth JA,Francis DO,Farjah F

更新日期：2020-03-01 00:00:00

abstract：:Pulmonary hypertension (PH) due to interstitial lung disease (ILD; PH-ILD) can complicate a multitude of ILDs, including idiopathic pulmonary fibrosis, chronic hypersensitivity pneumonitis, and nonspecific interstitial pneumonia. Development of PH-ILD is associated with increased need for supplemental oxygen, reduced ...

journal_title：Chest

authors： King CS,Shlobin OA

更新日期：2020-10-01 00:00:00

abstract：:A 54-year-old Japanese man demonstrated a sultamicillin-induced hilar and mediastinal lymphadenopathy with hypersensitivity pneumonitis. A positive lymphocyte stimulation test for sultamicillin and a decreased CD4/CD8 ratio of lymphocytes in BAL fluid suggested that an alteration in cell-mediated mechanisms was respon...

journal_title：Chest

authors： Yonemaru M,Mizuguchi Y,Kasuga I,Utsumi K,Ichinose Y,Toyama K

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND:Childhood OSA is a prevalent condition associated with raised BP as documented in cross-sectional studies. This study aimed to determine whether baseline or change in OSA severity was associated with ambulatory BP at 4-year follow-up. METHODS:Children who participated in our previous OSA prevalence research...

journal_title：Chest

authors： Li AM,Au CT,Ng C,Lam HS,Ho CKW,Wing YK

更新日期：2014-06-01 00:00:00

abstract：BACKGROUND:Pulmonary artery remodeling triggered by alveolar hypoxia is considered the main mechanism of pulmonary hypertension (PH) in COPD patients. We hypothesized that the risk for PH in COPD is increased by an elevation in the proinflammatory cytokines interleukin (IL)-6, monocyte chemoattractant protein-1 (MCP-1)...

journal_title：Chest

authors： Chaouat A,Savale L,Chouaid C,Tu L,Sztrymf B,Canuet M,Maitre B,Housset B,Brandt C,Le Corvoisier P,Weitzenblum E,Eddahibi S,Adnot S

更新日期：2009-09-01 00:00:00

abstract：BACKGROUND:International time trends in asthma mortality have played an important sentinel role in the identification of two epidemics of asthma mortality in some countries in the 1960s and the 1970s and 1980s. Since then, little attention has been paid to the ongoing international time trends. METHODS:Country-specifi...

journal_title：Chest

authors： Wijesinghe M,Weatherall M,Perrin K,Crane J,Beasley R

更新日期：2009-04-01 00:00:00

abstract：STUDY OBJECTIVES:To identify which tests would be useful in selecting patients for a specific inhalation challenge with bovine dander allergens (bSIC). DESIGN:A prospective study. SETTING:A university hospital. PATIENTS:Thirty-seven dairy farmers with a clinical suspicion of occupational asthma due to bovine allerge...

journal_title：Chest

authors： Koskela H,Taivainen A,Tukiainen H,Chan HK

更新日期：2003-07-01 00:00:00

abstract：BACKGROUND:The study documented the emergence of new forms of resistant bacilli (totally drug-resistant [TDR] or super extensively drug-resistant [XDR] tuberculosis [TB] strains) among patients with multidrug-resistant TB (MDR-TB). METHODS:Susceptibility testing against first- and second-line drugs was performed on is...

journal_title：Chest

authors： Velayati AA,Masjedi MR,Farnia P,Tabarsi P,Ghanavi J,ZiaZarifi AH,Hoffner SE

更新日期：2009-08-01 00:00:00

abstract：:To clarify the interrelation between interleukin-2 (IL-2) and soluble IL-2R receptor (sIL-2R), as products of T-cell activation in the bronchial tree of patients with bronchial asthma, we measured the concentration of IL-2, sIL-2R, and the cellular composition in bronchoalveolar lavage (BAL) fluid. We also measured ph...

journal_title：Chest

authors： Park CS,Lee SM,Chung SW,Uh S,Kim HT,Kim YH

更新日期：1994-08-01 00:00:00

abstract：:We describe the case of a lung transplant patient with primary graft failure and an emphysematous native lung, who displayed different respiratory rates between the transplanted lung and the native lung. Inflation of the native lung delayed the next inspiratory effort relative to inflation of the denervated transplant...

journal_title：Chest

authors： Officer TM,Wheeler DR,Frost AE,Rodarte JR

更新日期：2001-08-01 00:00:00

abstract：:Recent studies have suggested that vasodilators may acutely improve pulmonary hemodynamics in patients with chronic obstructive pulmonary disease and cor pulmonale, but the effects of long-term therapy have not been assessed. We evaluated the hemodynamic and gas exchange effects of nitrendipine, a calcium channel bloc...

journal_title：Chest

authors： Rubin LJ,Moser K

更新日期：1986-01-01 00:00:00

abstract：BACKGROUND AND STUDY OBJECTIVES:Noninvasive positive airway pressure may play a significant role in treating patients with congestive heart failure (CHF). We tested our hypothesis that noninvasive bilevel positive airway pressure improves left ventricular performance in patients with chronic CHF secondary to severe sys...

journal_title：Chest

authors： Acosta B,DiBenedetto R,Rahimi A,Acosta MF,Cuadra O,Van Nguyen A,Morrow L

更新日期：2000-10-01 00:00:00

abstract：BACKGROUND:There is significant heterogeneity within the primary graft dysfunction (PGD) syndrome. We aimed to identify distinct grade 3 PGD phenotypes based on severity of lung dysfunction and patterns of resolution. METHODS:Subjects from the Lung Transplant Outcomes Group (LTOG) cohort study with grade 3 PGD within ...

journal_title：Chest

authors： Shah RJ,Diamond JM,Cantu E,Lee JC,Lederer DJ,Lama VN,Orens J,Weinacker A,Wilkes DS,Bhorade S,Wille KM,Ware LB,Palmer SM,Crespo M,Localio AR,Demissie E,Kawut SM,Bellamy SL,Christie JD

更新日期：2013-08-01 00:00:00

abstract：:To determine whether sectional development in pulmonary and critical care medicine influences medical house officers' (HO) interests and knowledge about respiratory medicine, we reviewed HO performance on the American Board of Internal Medicine (ABIM) certifying examination during 4 years before and 5 years after reor...

journal_title：Chest

authors： Haponik EF,Bowton DL,Chin R Jr,Adair NE,Lykens MG,Alford PT,Bass DA

更新日期：1996-08-01 00:00:00

abstract：BACKGROUND AND STUDY OBJECTIVE:Phrenic nerve injury may occur after cardiac surgery; however, its cause has not been extensively investigated with electrophysiology. The purpose of this study was to determine by electrophysiologic means the importance of various possible risk factors in the development of phrenic nerve...

journal_title：Chest

authors： Dimopoulou I,Daganou M,Dafni U,Karakatsani A,Khoury M,Geroulanos S,Jordanoglou J

更新日期：1998-01-01 00:00:00

abstract：:Volatile organic compounds (VOCs) are produced by virtually all metabolic processes of the body. As such, they have potential to serve as noninvasive metabolic biomarkers. Since exhaled VOCs are either derived from the respiratory tract itself or have passed the lungs from the circulation, they are candidate biomarker...

journal_title：Chest

authors： van der Schee MP,Paff T,Brinkman P,van Aalderen WMC,Haarman EG,Sterk PJ

更新日期：2015-01-01 00:00:00

abstract：:The treatment of asthma relies on the use of the following two major drug classes: beta(2)-agonists, both short acting and long acting; and corticosteroids (CSs). Although the properties of each drug class are well described, their use in combination delivered either separately or through one device has provided some ...

journal_title：Chest

authors： Black JL,Oliver BGG,Roth M

更新日期：2009-10-01 00:00:00

abstract：:A prospective evaluation of 74 human immunodeficiency virus (HIV)-infected patients with cardiopulmonary complaints revealed six patients (8.1 percent) with pulmonary hypertension with elevated right ventricular systolic over right atrial pressure of 58 +/- 8 mm Hg (range, 49 to 66 mm Hg), as documented by Doppler ech...

journal_title：Chest

authors： Speich R,Jenni R,Opravil M,Pfab M,Russi EW

更新日期：1991-11-01 00:00:00

abstract：:In experimental animals, conditions which drastically decrease cardiac output may reduce the strength and endurance of respiratory muscles leading to hypercapnic respiratory failure. Because patients with chronic CHF have reduced cardiac output and vital capacity (FVC), we measured PImax and PEmax and maximal handgrip...

journal_title：Chest

authors： Hammond MD,Bauer KA,Sharp JT,Rocha RD

更新日期：1990-11-01 00:00:00

abstract：STUDY OBJECTIVES:(1) To determine physician preferences in the management of warfarin-induced excessive anticoagulation (AC); and (2) to assess compliance with the American College of Chest Physicians (ACCP) guidelines for the reversal of excessive AC. DESIGN:Cross-sectional physician survey. PARTICIPANTS:Members of ...

journal_title：Chest

authors： Wilson SE,Douketis JD,Crowther MA

更新日期：2001-12-01 00:00:00

abstract：BACKGROUND:Little is known about the prevalence, predictors, and outcomes of late vasopressor administration which evolves after admission to the ICU. RESEARCH QUESTION:What is the epidemiology of late vasopressor administration in the ICU? STUDY DESIGN AND METHODS:We retrospectively studied a cohort of veterans admi...

journal_title：Chest

authors： Viglianti EM,Bagshaw SM,Bellomo R,McPeake J,Molling DJ,Wang XQ,Seelye S,Iwashyna TJ

更新日期：2020-08-01 00:00:00

abstract：:The ventilator discontinuation process is a critical component of ICU care. Ongoing ventilator dependency is caused by both disease factors (eg, respiratory, cardiac, metabolic, and neuromuscular) and clinician management factors (eg, failing to recognize discontinuation potential and inappropriate ventilator settings...

journal_title：Chest

authors： MacIntyre N

更新日期：2007-09-01 00:00:00

abstract：BACKGROUND:COPD, the fifth-leading cause of death worldwide, is characterized by chronic inflammation. However, no available agent can effectively cure this inflammation. A dietary supplement containing omega-3 polyunsaturated fatty acids (PUFAs) has anti-inflammatory effects. In this study, we hypothesized that nutrit...

journal_title：Chest

authors： Matsuyama W,Mitsuyama H,Watanabe M,Oonakahara K,Higashimoto I,Osame M,Arimura K

更新日期：2005-12-01 00:00:00

abstract：:Low-dose dopamine administration (ie, doses < 5 microg/kg/min) has been advocated for 30 years as therapy in oliguric patients on the basis of its action on dopaminergic renal receptors. Recently, a large, multicenter, randomized, controlled trial has demonstrated that low-dose dopamine administered to critically ill ...

journal_title：Chest

authors： Holmes CL,Walley KR

更新日期：2003-04-01 00:00:00

abstract：:Endothelial metabolism of L-arginine to L-citrulline and the potent vasodilator, nitric oxide (NO), is important in the regulation of vascular tone and resting BP. L-arginine improves abnormal endothelium-dependent vasodilation in the setting of hypercholesterolemia and has a vasodilatory effect in normal vessels, eff...

journal_title：Chest

authors： Mehta S,Stewart DJ,Levy RD

更新日期：1996-06-01 00:00:00

abstract：BACKGROUND:In a rodent model of cardiac arrest and resuscitation in which the inspired gas mixture was enriched with oxygen, resuscitability and survival were unaffected by positive pressure ventilation. In the present study, in a larger animal model, tidal volumes generated during precordial compression and with spont...

journal_title：Chest

authors： Noc M,Weil MH,Tang W,Turner T,Fukui M

更新日期：1995-09-01 00:00:00

abstract：BACKGROUND:Cough provides high expiratory airflows to aerosolize and remove material that cannot be adequately removed by ciliary action. Cough is particularly important for clearing foreign particles from the airway in those with dysphagia who may be at risk for penetration/aspiration (P/A). Expiratory muscle strength...

journal_title：Chest

authors： Pitts T,Bolser D,Rosenbek J,Troche M,Okun MS,Sapienza C

更新日期：2009-05-01 00:00:00

abstract：:Imaging and Doppler echocardiography permits assessment of right ventricular size and systolic function and of pulmonary arterial pressures, and it may facilitate detection of thromboemboli within the heart or pulmonary artery. In patients with acute pulmonary embolism of sufficient severity to appreciably increase ri...

journal_title：Chest

authors： Come PC

更新日期：1992-04-01 00:00:00

abstract：:We reviewed results of 78 diagnostic thoracoscopic examinations of patients with lung cancer and homolateral pleural effusion. The study stresses the main locations of pleural metastasis in cases of lung cancer and correlates these data with the pleural spread from extrathoracic primary neoplasms. Also pointed out is ...

journal_title：Chest

authors： Cantó A,Ferrer G,Romagosa V,Moya J,Bernat R

更新日期：1985-05-01 00:00:00

abstract：:The management of congestive heart failure remains an issue of great interest. Encouraging data emerged over the last 2 years supporting the use of multisite pacing in patients with severe congestive heart failure and intraventricular conduction delay. We present a case of acute biventricular pacing in a 81-year old m...

journal_title：Chest

authors： Debrunner M,Naegeli B,Bertel O

更新日期：2000-06-01 00:00:00