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https://www.readbyqxmd.com/read/27932673/are-there-sex-differences-in-the-capillary-blood-volume-and-diffusing-capacity-response-to-exercise
#1
Melissa M Bouwsema, Vincent Tedjasaputra, Michael K Stickland
Previous work suggests that women may exhibit a greater respiratory limitation to exercise compared to height-matched men. Diffusion capacity (DLCO) increases with incremental exercise, and the smaller lungs of women may limit membrane diffusing capacity (Dm) and pulmonary capillary blood volume (Vc) in response to the increased oxygen demand. We hypothesized that females would have a lower DLCO, DLCO relative to cardiac output (DLCO/Q), Dm, Vc, and pulmonary transit time, secondary to lower Vc at peak exercise...
December 8, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27925054/prone-position-in-patients-with-acute-respiratory-distress-syndrome
#2
Mariano Setten, Gustavo Adrián Plotnikow, Matías Accoce
Acute respiratory distress syndrome occupies a great deal of attention in intensive care units. Despite ample knowledge of the physiopathology of this syndrome, the focus in intensive care units consists mostly of life-supporting treatment and avoidance of the side effects of invasive treatments. Although great advances in mechanical ventilation have occurred in the past 20 years, with a significant impact on mortality, the incidence continues to be high. Patients with acute respiratory distress syndrome, especially the most severe cases, often present with refractory hypoxemia due to shunt, which can require additional treatments beyond mechanical ventilation, among which is mechanical ventilation in the prone position...
December 1, 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/27918385/neurally-adjusted-ventilatory-assist-in-preterm-infants-with-established-or-evolving-bronchopulmonary-dysplasia-on-high-intensity-mechanical-ventilatory-support-a-single-center-experience
#3
Young Hwa Jung, Han-Suk Kim, Juyoung Lee, Seung Han Shin, Ee-Kyung Kim, Jung-Hwan Choi
OBJECTIVES: The aim of the present study was to report possible improvements in ventilator variables associated with a transition from synchronized intermittent mandatory ventilation to neurally adjusted ventilatory assist in preterm infants with bronchopulmonary dysplasia who required a high level of mechanical ventilatory support in a single center. DESIGN: Retrospective study. SETTING: Neonatal ICU. PATIENTS: Twenty-nine preterm infants with a median gestational age of 25...
December 2016: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/27916095/-decreased-sirt1-expression-is-related-to-bronchopulmonary-dysplasia-in-premature-infants-after-oxygen-exposure
#4
Fengmei Tan, Wenbin Dong, Xiaoping Lei, Xingling Liu, Qingping Li, Lan Kang, Shuai Zhao, Chan Zhang
Objective To observe silent information regulator 1 (SIRT1) expression in the peripheral blood mononuclear cells (PBMCs), and explore the relationship between SIRT1 expression and bronchopulmonary dysplasia (BPD) in premature infants after oxygen exposure. Methods Premature infants with 28 to 30 weeks' gestation were divided into three groups according to the fraction of inspiration O2 (FiO2): low-oxygen group with FiO2<30%, medium-oxygen group with FiO2 being 30%~40%, and high-oxygen group with FiO2≥40%; other premature infants with 28 to 30 weeks' gestation and without inspiration O2 served as a control group...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27916036/-effect-of-ultrasound-guided-patient-controlled-paravertebral-block-on-pulmonary-function-in-patients-with-multiple-fractured-ribs
#5
Y Y Ge, X Z Wang, N Yuan, L Y Yuan, W H Ma, Y Hu
Objective: To investigated the effects of patient controlled intravenous analgesia and ultrasound guided patient-controlled paravertebral block on pulmonary function in patients with multiple fractured ribs. Methods: From May 2015 to March 2016, 60 patients with multiple rib fractures in Ningbo NO.6 Hospital with American Society of Anesthesiologists Ⅱ-Ⅲ underwent internal fixation, including 30 males and 30 females aged from 16 to 70 years(mean age (54.6±15.2) years). All patients were randomly divided into 2 groups (n=30 each): patient controlled intravenous analgesia(PCIA) group and patient controlled thoracic paravertebral block(PCPB) group...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27913427/intermittent-hypoxia-during-recovery-from-neonatal-hyperoxic-lung-injury-causes-long-term-impairment-of-alveolar-development-a-new-rat-model-of-bpd
#6
Anastasiya Mankouski, Crystal Kantores, Mathew J Wong, Julijana Ivanovska, Amish Jain, Eric J Benner, Stanley N Mason, A Keith Tanswell, Richard L Auten, Robert P Jankov
Bronchopulmonary dysplasia (BPD) is a chronic lung injury characterized by impaired alveologenesis that may persist into adulthood. Rat models of BPD using varying degrees of hyperoxia to produce injury either cause early mortality or spontaneously recover following removal of the inciting stimulus, thus limiting clinical relevance. We sought to refine an established rat model induced by exposure to 60% O2 from birth by following hyperoxia with intermittent hypoxia (IH). Rats exposed from birth to air or 60% O2 until day 14 were recovered in air with or without IH (FiO2 = 0...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27911257/individualized-antibiotic-therapy-in-patients-with-ventilator-associated-pneumonia
#7
Gurdal Yilmaz, Sedat Saylan, Firdevs Aksoy, Iftihar Koksal
The optimal duration of treatment of ventilator-associated pneumonia (VAP) is still the subject of debate. While 1-week treatment has been reported as possibly sufficient, patients generally receive antibiotic therapy for 10-14 days. The purpose of our study was to investigate whether length of treatment in patients with VAP can be reduced with an individualized therapeutic strategy. The study was performed prospectively with patients diagnosed with VAP in our hospital's intensive care units between 1 January and 31 December, 2015...
December 1, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27887604/variable-ventilation-improves-pulmonary-function-and-reduces-lung-damage-without-increasing-bacterial-translocation-in-a-rat-model-of-experimental-pneumonia
#8
Raquel F de Magalhães, Cynthia S Samary, Raquel S Santos, Milena V de Oliveira, Nazareth N Rocha, Cintia L Santos, Jamil Kitoko, Carlos A M Silva, Caroline L Hildebrandt, Cassiano F Goncalves-de-Albuquerque, Adriana R Silva, Hugo C Faria-Neto, Vanessa Martins, Vera L Capelozzi, Robert Huhle, Marcelo M Morales, Priscilla Olsen, Paolo Pelosi, Marcelo Gama de Abreu, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Variable ventilation has been shown to improve pulmonary function and reduce lung damage in different models of acute respiratory distress syndrome. Nevertheless, variable ventilation has not been tested during pneumonia. Theoretically, periodic increases in tidal volume (VT) and airway pressures might worsen the impairment of alveolar barrier function usually seen in pneumonia and could increase bacterial translocation into the bloodstream. We investigated the impact of variable ventilation on lung function and histologic damage, as well as markers of lung inflammation, epithelial and endothelial cell damage, and alveolar stress, and bacterial translocation in experimental pneumonia...
November 25, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27882025/no-inhalation-in-combination-with-high-frequency-ventilation-treatment-in-the-treatment-of-neonatal-severe-respiratory-failure
#9
Xiaohui Guo, Yanfeng Sun, Jing Miao, Min Cui, Jiangbo Wang, Shuzhen Han
OBJECTIVE: To discuss over NO inhalation (iNO) in combination with high frequency ventilation treatment in relieving clinical symptoms and respiratory state of patients with neonatal severe respiratory failure. METHODS: Ninety newborns with severe respiratory failure who received treatment in our hospital were selected for this study. They were divided into research group and control group according to visiting time. Patients in the control group were given conventional treatment in combination with high-frequency oscillatory ventilation, while patients in the research group were given iNO for treatment additionally besides the treatment the same as the control group...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27879954/comparison-of-terminal-extubation-and-terminal-weaning-as-mechanical-ventilation-withdrawal-in-icu-patients
#10
Damien Thellier, Pierre Y Delannoy, Olivier Robineau, Agnès Meybeck, Nicolas Boussekey, Arnaud Chiche, Olivier Leroy, Hugues Georges
BACKGROUND: Terminal extubation (TE) is applied in some intensive care unit (ICU) patients when a decision of withdrawal of mechanical ventilation is decided. Other units prefer terminal weaning (TW) with no removal of the endotracheal tube. We report our experience with these two procedures. METHODS: We conducted a retrospective study analyzing patients deceased in our ICU after a decision of life sustained therapy (LST) during the year 2013. TE was proposed to family members for patients presenting with two medical conditions: lack of vasoactive drugs (VAD) and SaO2 > 95% with a FIO2 < 50%...
November 23, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27879560/temporal-changes-in-microrna-expression-in-blood-leukocytes-from-patients-with-the-acute-respiratory-distress-syndrome
#11
Purushottam Narute, Nitin Seam, Margaret Tropea, Carolea Logun, Rongman Cai, Junfeng Sun, James H Shelhamer, G Umberto Meduri, Anthony F Suffredini
BACKGROUND: MicroRNA (miRNA) control gene transcription by binding to and repressing the translation of messenger RNA (mRNA). Their role in the acute respiratory distress syndrome (ARDS) is undefined. METHODS: Blood leukocytes from 51 patients enrolled in a prior randomized trial of corticosteroids for ARDS were analyzed. After screening eight patients with microarrays for altered miRNA expression, 25 miRNAs were selected for further analysis using RT-PCR in all 51 patients...
November 21, 2016: Shock
https://www.readbyqxmd.com/read/27879385/fio2-in-an-adult-model-simulating-high-flow-nasal-cannula-therapy
#12
Yusuke Chikata, Mutsuo Onodera, Jun Oto, Masaji Nishimura
BACKGROUND: High-flow nasal cannula therapy (HFNC) is widely used for patients with acute respiratory failure. HFNC has a number of physiological effects. Although FIO2 is considered to be constant, because HFNC is an open system, FIO2 varies according to inspiratory flow, tidal volume (VT), and HFNC gas flow. We investigated the influence of HFNC gas flow and other respiratory parameters on FIO2 during HFNC. METHODS: We evaluated an HFNC system and, for comparison, a conventional oxygen therapy system...
November 22, 2016: Respiratory Care
https://www.readbyqxmd.com/read/27874934/effect-of-nitric-oxide-inhalation-for-the-treatment-of-neonatal-pulmonary-hypertension
#13
H-W Wu, Z-G Li, G Liu, G-Z Lu, H-Y Liang
OBJECTIVE: To investigate the effect of nitric oxide (NO) inhalation for the treatment of neonatal pulmonary hypertension. PATIENTS AND METHODS: Eighty-six patients with neonatal pulmonary hypertension who were treated for the first time Xuzhou Children's Hospital from January 2013 to January 2016 were selected and randomly divided into the observation group and control group, with 43 cases each. Patients in the control group were treated with high-frequency oscillatory ventilation, while those in the observation group were treated with high-frequency oscillatory ventilation combined with inhalational NO therapy...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27873292/icu-management-based-on-picco-parameters-reduces-duration-of-mechanical-ventilation-and-icu-length-of-stay-in-patients-with-severe-thoracic-trauma-and-acute-respiratory-distress-syndrome
#14
Zhong Yuanbo, Wang Jin, Shi Fei, Long Liangong, Liu Xunfa, Xu Shihai, Shan Aijun
BACKGROUND: This study aimed to assess whether a management algorithm using data obtained with a PiCCO system can improve clinical outcomes in critically ill patients with acute respiratory distress syndrome (ARDS). RESULTS: The PaO2/FiO2 ratio increased over time in both groups, with a sharper increase in the PiCCO group. There was no difference in 28-day mortality (3.2 vs. 3.6%, P = 0.841). Days on mechanical ventilation (3 vs. 5 days, P = 0.002) and ICU length of stay (6 vs...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27870384/high-flow-nasal-cannula-use-outside-of-the-icu-factors-associated-with-failure
#15
Kristina A Betters, Scott E Gillespie, Judson Miller, David Kotzbauer, Kiran B Hebbar
OBJECTIVES: High flow nasal cannula (HFNC) use is increasing in pediatrics. Few studies exist examining the safety of HFNC use outside the intensive care unit (ICU). This study aimed to characterize patient qualities associated with failure of HFNC use outside the ICU. STUDY DESIGN: A retrospective chart review of patients placed on HFNC outside the ICU from September 2011 to July 2013 was completed. Failure was defined as intubation or cardiopulmonary arrest. Two-sample tests and binary logistic regression determined significant factors associated with failed HFNC administration, both unadjusted and adjusted for hospital...
November 21, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27867133/fiberoptic-bronchoscopy-and-remifentanil-target-controlled-infusion-in-critically-ill-patients-with-acute-hypoxaemic-respiratory-failure-a-descriptive-study
#16
Saïda Rezaiguia-Delclaux, Florent Laverdure, Talna Kortchinsky, Léa Lemasle, Audrey Imbert, François Stéphan
INTRODUCTION: Sedation optimizes patient comfort and ease of execution during fiberoptic bronchoscopy (FOB). Our objective was to describe the safety and efficacy of remifentanil-TCI during FOB in non-intubated, hypoxaemic, thoracic-surgery ICU patients. METHODS: Consecutive spontaneously breathing adults requiring FOB after thoracic surgery were included if they had hypoxaemia (PaO2/FiO2 < 300mmHg or need for non-invasive ventilation [NIV]) and prior FOB failure under topical anaesthesia...
November 17, 2016: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/27861919/consequences-of-maternal-omega-3-polyunsaturated-fatty-acid-supplementation-on-respiratory-function-in-rat-pups
#17
Luana Tenorio-Lopes, Cécile Baldy, Alexandra Jochmans-Lemoine, Océane Mercier, Olivier Pothier-Piccinin, Tommy Seaborn, Vincent Joseph, Isabelle Marc, Richard Kinkead
Most preterm infants present respiratory instabilities and apneas owing to incomplete development of the neural circuits that control breathing. Because omega-3 polyunsaturated fatty acids (n-3 PUFA) benefit brain development, we hypothesized that n-3 PUFA supplementation (via maternal diet) improves respiratory function in rat pups. Pups received n-3 PUFA supplementation from an enriched diet (13 g kg(-1) of n-3 PUFA) administered to the mother from birth until experiments were performed (postnatal days 10-11)...
November 11, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27857693/heavy-resistance-training-in-hypoxia-enhances-1rm-squat-performance
#18
Mathew W H Inness, François Billaut, Emily J Walker, Aaron C Petersen, Alice J Sweeting, Robert J Aughey
Purpose: To determine if heavy resistance training in hypoxia (IHRT) is more effective at improving strength, power, and increasing lean mass than the same training in normoxia. Methods: A pair-matched, placebo-controlled study design included 20 resistance-trained participants assigned to IHRT (FIO2 0.143) or placebo (FIO2 0.20), (n = 10 per group). Participants were matched for strength and training. Both groups performed 20 sessions over 7 weeks either with IHRT or placebo. All participants were tested for 1RM, 20-m sprint, body composition, and countermovement jump pre-, mid-, and post-training and compared via magnitude-based inferences...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27854067/attenuation-of-the-physiological-response-to-infection-on-adults-over-65%C3%A2-years-old-admitted-to-the-emergency-room-er
#19
Alejandro Marín Valencia, Carlos Eduardo Vallejo, Alba Luz León Alvarez, Fabian Alberto Jaimes
It has been considered that the elderly have clinical manifestations different from the ones observed in middle-age adults during an injury event. This hypothesis has not been extensively explored in sepsis and bacterial infections. Secondary analysis of two prospective studies including 2611 patients over 18 years of age admitted to the emergency room with confirmed or probable bacterial infections and sepsis. The outcome measures were heart rate, respiratory rate, systolic blood pressure, temperature, Glasgow Coma Scale, creatinine, PaO2/FiO2 and platelets daily during the first week...
November 16, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27851568/1934-bleomycin-induced-pneumonitis-responds-to-super-high-dose-steroid-and-monitored-by-ldh-and-pao2-fio2
#20
Xuan Wang, Jing Deng, Arpit Sothwal, Erin Gordon, Gaurav Patel
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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