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Peak Expiratory Flow Rate

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1. Definition of Respiratory Sarcopenia With Peak Expiratory Flow Rate. (Abstract)

Definition of Respiratory Sarcopenia With Peak Expiratory Flow Rate. Respiratory muscle strength decreases with advancing age, and respiratory muscle dysfunction may indicate respiratory sarcopenia. However, there is no consensus regarding the definition of respiratory sarcopenia. We aimed to create a definition of respiratory sarcopenia based on the peak expiratory flow rate (PEFR).Cross-sectional study.Community-based study including 681 community-dwelling older people.Body composition

2019 Journal of the American Medical Directors Association

2. Peak Expiratory Flow Rate for Emergency Department Management of Acute Asthma Exacerbation

Peak Expiratory Flow Rate for Emergency Department Management of Acute Asthma Exacerbation Peak Expiratory Flow Rate for Emergency Department Management of Acute Asthma Exacerbation - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more (...) studies before adding more. Peak Expiratory Flow Rate for Emergency Department Management of Acute Asthma Exacerbation The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. of clinical studies and talk to your health care provider before participating. Read our for details. ClinicalTrials.gov Identifier: NCT03420651 Recruitment Status : Recruiting First Posted

2018 Clinical Trials

3. Response to inhaled corticosteroids on serum CD28, quality of life, and peak expiratory flow rate in bronchial asthma. (Abstract)

Response to inhaled corticosteroids on serum CD28, quality of life, and peak expiratory flow rate in bronchial asthma. CD28 is a 44 kDa glycoprotein that is important in initiating T-cell responses and that results in increased T-cell proliferation and interleukin-2 production. This study estimated the serum CD28 levels in patients with asthma and evaluated the effect of inhaled corticosteroids (ICS) on the levels of CD28, the peak expiratory flow rate (PEFR), and quality of life (QOL

2017 Allergy and Asthma Proceedings

4. The effect of nephrostomy tract infiltration of ketamine on postoperative pain and peak expiratory flow rate in patients undergoing tubeless percutaneous nephrolithotomy: a prospective randomized clinical trial. (Abstract)

The effect of nephrostomy tract infiltration of ketamine on postoperative pain and peak expiratory flow rate in patients undergoing tubeless percutaneous nephrolithotomy: a prospective randomized clinical trial. Ketamine, as a systemic and local analgesic, has been used to reduce postoperative pain in many studies. The present study was designed to assess the analgesic efficacy of nephrostomy tract infiltration of ketamine in postoperative pain after tubeless percutaneous nephrolithotomy (PCNL (...) ). Sixty-six patients with renal stone who were candidates for PCNL were randomized to two groups with 33 patients in each group. In group K, 20 mL saline solution containing 1.5 mg/kg ketamine was infiltrated into the nephrostomy tract and in group C, 20 mL saline solution was infiltrated into the nephrostomy tract at the end of surgery. The postoperative pain scores, sedation scores, time to first rescue analgesia, rescue analgesic requirement, peak expiratory flow rate (PEF), and hemodynamic

2017 Urolithiasis Controlled trial quality: uncertain

5. Preoperative peak expiratory flow (PEF) for predicting postoperative pulmonary complications after lung cancer lobectomy: a prospective study with 725 cases Full Text available with Trip Pro

Preoperative peak expiratory flow (PEF) for predicting postoperative pulmonary complications after lung cancer lobectomy: a prospective study with 725 cases The study aimed to investigate the correlation between peak expiratory flow (PEF) and postoperative pulmonary complications (PPCs) for lung cancer patients undergoing lobectomy.Patients who were diagnosed with resected non-small cell lung cancer (NSCLC) (n=725) were prospectively analyzed and the relationship between the preoperative PEF (...) ) curve, with the consideration of balancing the sensitivity and specificity, a cutoff value of 300 (L/min) (Youden index: 0.484, sensitivity: 69.4%, specificity: 79.0%) was selected and a PEF ≤300 L/min indicated a 8-fold increase in odds of having PPCs after lung surgery (OR, 8.551, 95% CI: 5.692-12.845, P<0.001). With regard to PPCs rate, patients with PEF value ≤300 L/min had high PPCs rate than those with PEF >300 L/min (45.0%, 100/222 vs. 8.7%, 44/503, P<0.001); Meanwhile, pneumonia (24.8%, 55

2018 Journal of thoracic disease

6. Peak Expiratory Flow Rate

Peak Expiratory Flow Rate Peak Expiratory Flow Rate Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Peak Expiratory Flow Rate Peak (...) Expiratory Flow Rate Aka: Peak Expiratory Flow Rate , Peak Expiratory Flow , Peak Flow , PEFR II. Calculation: Estimated PEFR in Children PEFR = (Ht - 100) x5 + 100 Where Ht is standing height in centimeters PEFR is Peak Expiratory Flow in liters per minute References III. Calculation: Estimated PEFR in Adult Females PEFR = (((Height x3.72) +2.24) - (Age x 0.03)) x 60 Where Height in meters or (inches x 0.0254) IV. Calculation: Estimated PEFR in Adult Males PEFR = (((Height x5.48) +1.58) - (Age x 0.041

2018 FP Notebook

7. Time-controlled adaptive ventilation (TCAV) accelerates simulated mucus clearance via increased expiratory flow rate. Full Text available with Trip Pro

of multiple combinations of peak inspiratory (IPF) and peak expiratory flow rate (EPF) on simulated mucus movement within the ETT. Mechanical ventilation was randomized into 6 groups (n = 10 runs/group): group 1-TCAV protocol settings with an end-expiratory pressure (PLow) of 0 cmH2O and PHigh 25 cmH2O, group 2-modified TCAV protocol with increased PLow 5 cmH2O and PHigh 25 cmH2O, group 3-modified TCAV with PLow 10 cmH2O and PHigh 25 cmH2O, group 4-ARDSnet protocol using low tidal volume (LTV) and PEEP 0 (...) Time-controlled adaptive ventilation (TCAV) accelerates simulated mucus clearance via increased expiratory flow rate. Ventilator-associated pneumonia (VAP) is the most common nosocomial infection in intensive care units. Distal airway mucus clearance has been shown to reduce VAP incidence. Studies suggest that mucus clearance is enhanced when the rate of expiratory flow is greater than inspiratory flow. The time-controlled adaptive ventilation (TCAV) protocol using the airway pressure release

2019 Intensive care medicine experimental Controlled trial quality: uncertain

8. The Effect of Salt Space on Clinical Findings and Peak Expiratory Flow in Children with Mild to Moderate Asthma: A Randomized Crossover Trial. (Abstract)

The Effect of Salt Space on Clinical Findings and Peak Expiratory Flow in Children with Mild to Moderate Asthma: A Randomized Crossover Trial. The asthma treatment and control might be associated with significant burden on family and community' thus exploring other therapeutic plans could be desirable. The aim of this study was to investigate the effect of salt space on clinical findings and peak expiratory flow rate among children with asthma. In this randomized crossover trial, 34 patients (...) aged 6-14 years old with mild to moderate asthma were selected and randomly divided into two groups. The first group went through a period of salt therapy by staying in the salt room for one hour, three times a week for 3 consecutive weeks and then was under observation for three weeks. This process was reversed for the second group (three weeks under observation followed by salt therapy). The wash-out period was one week. During the study, the morning and evening peak expiratory flow (PEF

2017 Iranian journal of allergy, asthma, and immunology Controlled trial quality: uncertain

9. Evaluation of cough peak expiratory flow as a predictor of successful mechanical ventilation discontinuation: a narrative review of the literature Full Text available with Trip Pro

measures using peak expiratory flow rate is a non-invasive and easily reproducible assessment which can predict extubation failure. We conducted a narrative review of the literature regarding use of cough strength as a predictive index for extubation failure risk. Results of our review show that cough strength, quantified objectively with a cough peak expiratory flow measurement (CPEF), is strongly associated with extubation success. Furthermore, various cutoff thresholds have been identified and can (...) Evaluation of cough peak expiratory flow as a predictor of successful mechanical ventilation discontinuation: a narrative review of the literature A crucial step in the transition from mechanical ventilation to extubation is the successful performance of a spontaneous breathing trial (SBT). The American College of Chest Physicians (ACCP) Guidelines recommend removal of the endotracheal tube upon successful completion of a SBT. However, this does not guarantee successful extubation

2017 Journal of intensive care

10. Peak expiratory flow rate as a surrogate for forced expiratory volume in 1 second in COPD severity classification in Thailand Full Text available with Trip Pro

Peak expiratory flow rate as a surrogate for forced expiratory volume in 1 second in COPD severity classification in Thailand There are limited studies directly comparing correlation and agreement between peak expiratory flow rate (PEFR) and forced expiratory volume in 1 second (FEV1) for severity classification of COPD. However, clarifying the role of PEFR as a surrogate of COPD severity classification instead of FEV1 is essential in situations and areas where spirometry is not routinely

2015 International journal of chronic obstructive pulmonary disease

11. Effects of Ropivacaine on Postoperative Pain and Peak Expiratory Flow Rate in Patients Undergoing Percutaneous Nephrolithotomy. Full Text available with Trip Pro

Effects of Ropivacaine on Postoperative Pain and Peak Expiratory Flow Rate in Patients Undergoing Percutaneous Nephrolithotomy. Postoperative analgesic effects of ropivacaine have been demonstrated in various surgical procedures; however, its beneficial effect on postoperative pain relief and ability to breathe out air in urological surgeries, particularly in local interventions such as percutaneous nephrolithotomy (PCNL), has remained uncertain.The aim of this study was to assess the efficacy (...) of ropivacaine on postoperative pain severity and peak expiratory flow (PEF) in patients undergoing PCNL procedure.This randomized double-blinded clinical trial was performed on 55 consecutive adult patients aged 15 to 60 years who underwent Tubeless PCNL surgery. The patients were randomly assigned to instill 30 mL of ropivacaine 0.2% or 30 mL of isotonic saline with the same protocol. The parameters of visual analogue scale (VAS) (for assessment of pain severity) and PEF (for assessment of ability

2016 Nephro-urology monthly Controlled trial quality: uncertain

12. Serial Peak Expiratory Flow Rates in Patients Undergoing Upper Abdominal Surgeries Under General Anaesthesia and Thoracic Epidural Analgesia Full Text available with Trip Pro

Serial Peak Expiratory Flow Rates in Patients Undergoing Upper Abdominal Surgeries Under General Anaesthesia and Thoracic Epidural Analgesia Anaesthesia and upper abdominal surgeries alter lung compliance and functional residual capacity resulting from atelectasis. Upper abdominal surgeries also cause a decrease in peak expiratory flow rates, cough reflex due to pain limited inspiration.This study aimed to study the effect of thoracic epidural analgesia (TEA) on the peak expiratory flow rates

2016 Journal of clinical and diagnostic research : JCDR Controlled trial quality: uncertain

13. Daily Peak Expiratory Flow Rate and Disease Instability in Chronic Obstructive Pulmonary Disease Full Text available with Trip Pro

Daily Peak Expiratory Flow Rate and Disease Instability in Chronic Obstructive Pulmonary Disease Rationale: Chronic obstructive pulmonary disease, (COPD) is a major cause of morbidity and mortality in the United States. Peak expiratory flow rate (PEFR) monitoring could provide a daily objective measurement of lung function in COPD patients at home. We hypothesized that individuals with greater variability in daily PEFR would signal an unstable patient population with worse outcomes. Methods (...) ) and higher all-cause mortality (10.8 versus 5.1%, p= 0.04). Conclusion: Patients with severe to very severe COPD with greater changes in PEFR have shorter 6MWD, reduced time to first hospitalization, more frequent hospitalizations, and higher all-cause mortality despite similar demographic, spirometric and comorbid parameters at baseline. Daily peak flow monitoring can be a useful tool in identifying COPD patients predisposed to worse outcomes.

2015 Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation

14. Peak inspiratory flow rate measurement by using In-Check DIAL for the different inhaler devices in elderly with obstructive airway diseases Full Text available with Trip Pro

lower than that generated from the younger group for Turbuhaler (72.5 ± 18.8 L/min vs 82.4 ± 21.1 L/min, p = 0.01), but the PIFR generated was not significantly different between the older and the younger groups for the Accuhaler (93.8 ± 22.9 L/min vs 99.4 ± 24.2 L/min, p = 0.86). The low peak expiratory flow rate and PIFR from spirometry were associated with the suboptimal PIFR measured by using In-Check DIAL.Optimal PIFR is critical for DPI use in the elderly; appropriate DPI selection (...) Peak inspiratory flow rate measurement by using In-Check DIAL for the different inhaler devices in elderly with obstructive airway diseases Inhaler device technique is a common cause of treatment failure in patients with asthma and chronic obstructive pulmonary disease. Dry powder inhaler (DPI) requires optimal peak inspiratory flow rate (PIFR) for drug delivery. Low PIFR generation is common in the elderly. Patient lung function and intrinsic inhaler resistance are factors for determining

2017 Journal of asthma and allergy

15. Peak Inspiratory Flow Rate in Chronic Obstructive Pulmonary Disease: Implications for Dry Powder Inhalers Full Text available with Trip Pro

Peak Inspiratory Flow Rate in Chronic Obstructive Pulmonary Disease: Implications for Dry Powder Inhalers Chronic obstructive pulmonary disease (COPD) is the third leading cause of death in the United States with a significant economic burden related to hospital admissions for exacerbations. One of the primary treatment modalities for COPD is medications delivered through breath-actuated dry powdered inhalers (DPIs). For users to successfully receive inhaled medication, they must inhale (...) with enough flow to overcome the internal resistance of the device, leading to deaggregation of the medication powder. Peak inspiratory flow rate (PIFR) is the maximal flow rate obtained during an inspiratory maneuver. PIFR measurement can be impacted by the internal resistance of the device, which varies with device design. Many devices require a PIFR >60 L/min for adequate medication dispersal, while others appear to have adequate drug deaggregation with a PIFR >30 L/min. Studies have shown PIFRs

2017 Journal of aerosol medicine and pulmonary drug delivery

16. Revefenacin Peak Inspiratory Flow Rate (PIFR) Study in COPD

Revefenacin Peak Inspiratory Flow Rate (PIFR) Study in COPD Revefenacin Peak Inspiratory Flow Rate (PIFR) Study in COPD - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Revefenacin Peak Inspiratory Flow Rate (...) ): Theravance Biopharma Study Details Study Description Go to Brief Summary: This study is a randomized, double-blind, double-dummy, parallel group study to compare once daily nebulized Revefenacin with Spiriva once daily delivered via the HandiHaler® on lung function in subjects with COPD and a Low Peak Inspiratory Flow Rate. Condition or disease Intervention/treatment Phase Chronic Obstructive Pulmonary Disease, COPD Low Peak Inspiratory Flow Rate (PIFR) Drug: Revefenacin Combination Product: Spiriva

2017 Clinical Trials

17. Comparison between Emergency Severity Index plus peak flow meter and Emergency Severity Index in the dyspneic patients with chronic obstructive pulmonary disease: A randomized clinical trial. Full Text available with Trip Pro

Comparison between Emergency Severity Index plus peak flow meter and Emergency Severity Index in the dyspneic patients with chronic obstructive pulmonary disease: A randomized clinical trial. It is unclear whether the Emergency Severity Index (ESI) can identify high-risk patients with Chronic Obstructive Pulmonary Disease (COPD). This study aims to compare the mistriage rates of the ESI plus the Peak Expiratory Flowmeter (PEF) approach and ESI approach among dyspneic patients with COPD.This (...) study was a randomized clinical trial conducted between July and October 2018. We randomly assigned COPD patients with dyspnea to the ESI + PEF or ESI groups. Triage levels, disposition rates, number of resources used, and time to first physician contact were compared in patients admitted to the Intensive Care Unit (ICU), the Pulmonary Care Unit (PU), or discharged from the ED. Reliability of the ESI was evaluated by using the interobserver agreement (Kappa).Seventy COPD patients were equally

2019 Turkish journal of emergency medicine Controlled trial quality: uncertain

18. Effect of tiotropium on spontaneous expiratory flow-volume curves during exercise in GOLD 1-2 COPD. Full Text available with Trip Pro

Effect of tiotropium on spontaneous expiratory flow-volume curves during exercise in GOLD 1-2 COPD. This substudy of a large, randomized, controlled trial (NCT01072396) examined tiotropium (18 μg qd) effects on dynamic hyperinflation during constant work rate treadmill exercise. Areas-under-the-spontaneous expiratory flow-volume (SEFV)-curves were compared in 20 COPD patients and 16 age-matched untreated controls, using rectangular area ratio (RAR) between peak intrabreath and end-expiratory (...) flow. Seven patients exhibited SEFV curve concavity with RAR ≤ 0.5 (RARlow) in ≥1 test without tiotropium; (mean ± SD FEV1: 1.60 ± 0.59 L; 63.4 ± 14.0%predicted). In RARlow patients, tiotropium increased end-exercise inspiratory capacity (IC, 2.10 ± 0.05 vs. 1.89 ± 0.05 L, tiotropium vs. placebo; p = 0.045) and RAR (0.57 ± 0.02 vs. 0.53 ± 0.02; p < 0.001). Patients without SEFV curve concavity with RAR > 0.5 (n = 13; RARhigh), had higher screening FEV1 (2.15 ± 0.47 L; 79.6 ± 10.1%predicted) versus

2018 Respiratory physiology & neurobiology Controlled trial quality: uncertain

19. Effects of flow rate on transnasal pulmonary aerosol delivery of bronchodilators via high-flow nasal cannula for patients with COPD and asthma: protocol for a randomised controlled trial. Full Text available with Trip Pro

Effects of flow rate on transnasal pulmonary aerosol delivery of bronchodilators via high-flow nasal cannula for patients with COPD and asthma: protocol for a randomised controlled trial. Both in vitro and in vivo radiolabelled studies on nebulisation via high-flow nasal cannula showed that inhaled dose decreases as the administered gas flow increases. In our previous in vitro study, we investigated the effects of the ratio of gas flow to subject's peak inspiratory flow (GF:IF) on the aerosol (...) and valved holding chamber will be enrolled and consented. After a washout period (1-3 days), subjects will be randomly assigned to inhale albuterol with one of three gas flows: 50 L/min, GF:IF=1.0 and GF:IF=0.5. In each arm, subjects will inhale 2 mL saline, followed by escalating doubling doses (0.5, 1, 2 and 4 mg) of albuterol in a fill volume of 2 mL, delivered by a vibrating mesh nebuliser via heated nasal cannula set up at 37°C. An interval of 30 min between each dose of albuterol, with spirometry

2019 BMJ open Controlled trial quality: uncertain

20. Peak expiratory flow rates among women exposed to different cooking fuels in rural India. (Abstract)

Peak expiratory flow rates among women exposed to different cooking fuels in rural India. Plant or animal based material burned for cooking or heating (biofuels) can cause indoor air pollution. We studied the effect of exposure to biofuel and other types of fuel smoke on peak expiratory flow rates (PEFR) among rural Indian women. We conducted a community based cross-sectional study of 760 non-smoking women who cooked using one of four types of fuel: biofuel, kerosene, liquefied petroleum gas

2013 Southeast Asian Journal of Tropical Medicine and Public Health

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