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Mycobacterial infections in the era of modern biologic agents.

Mycobacterial infections in the era of modern biologic agents.

Am J Med Sci. 2011 Apr;341(4):278-80

Authors: Iseman MD

Patients with rheumatologic disease are at increased risk for mycobacterial infections because of both immunocompromising therapy and preexisting lung damage from the disease itself. Tuberculosis is uncommon in the United States; however, it is relatively more prevalent in immigrants, minorities, elderly, persons with acquired immune deficiency syndrome and among healthcare workers. In the United States, the nontuberculous mycobacteria (NTM) are now more prevalent than tuberculosis. Although initially noted in men with chronic obstructive pulmonary disease, recent observations indicate increasing numbers of NTM cases in slender white women. Because of the often atypical presentation of NTM lung disease, diagnosis is commonly delayed. Because there is solid evidence that tumor necrosis factor-alpha-modifying agents are associated with serious NTM disease, it is important that specific screening tests (eg, chest x-ray, computed tomographic lung scans, sputum cultures or referral to pulmonary or infectious disease specialists) be used before initiating anti-tumor necrosis factor therapy.

PMID: 21378550 [PubMed - indexed for MEDLINE]

Effects of antiretroviral therapy on immune function of HIV-infected adults with pulmonary tuberculosis and CD4+ >350 cells/mm3.

Effects of antiretroviral therapy on immune function of HIV-infected adults with pulmonary tuberculosis and CD4+ >350 cells/mm3.

J Infect Dis. 2011 Apr 1;203(7):992-1001

Authors: Lancioni CL, Mahan CS, Johnson DF, Walusimbi M, Chervenak KA, Nalukwago S, Charlebois E, Havlir D, Mayanja-Kizza H, Whalen CC, Boom WH

Human immunodeficiency virus (HIV)-tuberculosis coinfection is associated with heightened immune activation, viral replication, and T cell dysfunction. We compared changes in T cell activation and function between patients receiving concurrent treatment for HIV-tuberculosis coinfection and those receiving treatment for tuberculosis alone.

PMID: 21402550 [PubMed - indexed for MEDLINE]

A new approach to study exhaled proteins as potential biomarkers for asthma.

A new approach to study exhaled proteins as potential biomarkers for asthma.

Clin Exp Allergy. 2011 Mar;41(3):346-56

Authors: Bloemen K, Van Den Heuvel R, Govarts E, Hooyberghs J, Nelen V, Witters E, Desager K, Schoeters G

Asthma is a complex clinical disease characterized by airway inflammation. Recently, various studies reported on the analysis of exhaled breath condensate (EBC) in the search for potential biomarkers for asthma. However, in a complex disease such as asthma, one biomarker might not be enough for early diagnosis or follow-up.

PMID: 21105917 [PubMed - indexed for MEDLINE]

Short term non-invasive ventilation post-surgery improves arterial blood-gases in obese subjects compared to supplemental oxygen delivery - a randomized controlled trial.

Short term non-invasive ventilation post-surgery improves arterial blood-gases in obese subjects compared to supplemental oxygen delivery - a randomized controlled trial.

BMC Anesthesiol. 2011 May 23;11(1):10

Authors: Zoremba M, Kalmus G, Begemann D, Eberhart L, Zoremba N, Wulf H, Dette F

ABSTRACT: BACKGROUND: In the immediate postoperative period, obese patients are more likely to exhibit hypoxaemia due to atelectasis and impaired respiratory mechanics, changes which can be attenuated by non-invasive ventilation (NIV). The aim of the study was to evaluate the duration of any effects of early initiation of short term pressure support NIV vs. traditional oxygen delivery via venturi mask in obese patients during their stay in the PACU. METHODS: After ethics committee approval and informed consent, we prospectively studied 60 obese patients (BMI 30-45) undergoing minor peripheral surgery. Half were randomly assigned to receive short term NIV during their PACU stay, while the others received routine treatment (supplemental oxygen via venturi mask). Premedication, general anaesthesia and respiratory settings were standardized. We measured arterial oxygen saturation by pulse oximetry and blood gas analysis on air breathing. Inspiratory and expiratory lung function was measured preoperatively (baseline) and at 10min, 1h, 2h, 6h and 24h after extubation, with the patient supine, in a 30degrees head-up position. The two groups were compared using repeated-measure analysis of variance (ANOVA) and t-test analysis. Statistical significance was considered to be P<0.05. RESULTS: There were no differences at the first assessment. During the PACU stay, pulmonary function in the NIV group was significantly better than in the controls (p<0.0001). Blood gases and the alveolar to arterial oxygen partial pressure difference were also better (p<0.03), but with the addition that overall improvements are of questionable clinical relevance. These effects persisted for at least 24 hours after surgery (p<0.05). CONCLUSION: Early initiation of short term NIV during in the PACU promotes more rapid recovery of postoperative lung function and oxygenation in the obese. The effect lasted 24 hours after discontinuation of NIV. Patient selection is necessary in order to establish clinically relevant improvements. (Trial Registration#: DRKS00000751; www.germanctr.de).

PMID: 21605450 [PubMed - as supplied by publisher]

Effects of continuous positive airway pressure on apnea–hypopnea index in obstructive sleep apnea based on long-term compliance

Conclusions  Even in an ideal group of patients, CPAP cannot eliminate respiratory events due to limited adherence. Adherence needs to be taken into account when comparing the effects of CPAP on the AHI with alternative treatment methods, especially those with 100% adherence (e.g., surgery). Content Type Journal ArticlePages 1-5DOI 10.1007/s11325-011-0527-8Authors Boris A. Stuck, Sleep Disorders Center, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, GermanySarah Leitzbach, Sleep Disorders Center, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, GermanyJoachim T. Maurer, Sleep Disorders Center, Department of ...

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