The accuracy of transcutaneous PCO2 in subjects with severe brain injury: a comparison with end-tidal PCO2.

Abstract:

BACKGROUND:In patients suffering from brain injury, end-tidal PCO2 (PETCO2 ) monitoring is controversial, but transcutaneous PCO2 (PtcCO2 ), which is noninvasive and utilizes immediate display, may be an alternative method. We hypothesized that PtcCO2 would be more accurate than PETCO2 for monitoring PaCO2 in patients with severe brain injury. METHODS:A prospective observational study included consecutive mechanically ventilated adult subjects who had acute brain injury and an arterial catheter in place. When an arterial blood gas analysis was required, the PETCO2 and PtcCO2 values were simultaneously recorded. The agreement between the PETCO2 , PtcCO2 , and PaCO2 measurements (reference) was determined using the Bland-Altman method. The number of outliers defined by the formula ([PETCO2 or PtcCO2 ] - PaCO2 ) > ± 4 mm Hg indicated the proportion of measurements that were considered clinically unacceptable. RESULTS:A total of 25 subjects were included in the study, and 85 simultaneous measurements of PaCO2 , PtcCO2 , and PETCO2 were obtained. The bias and precision between PaCO2 and PtcCO2 were -0.75 and 6.23 mm Hg, respectively. The limits of agreement ranged from -12.97 to 11.47 mm Hg. The bias and precision between PaCO2 and PETCO2 were 0.68 and 5.82 mm Hg, respectively. The limits of agreement ranged from -10.72 to 12.08 mm Hg. There were 34 (40%) outliers for the PtcCO2 sensor and 34 (40%) outliers for the PETCO2 sensor (P > .99). CONCLUSIONS:The accuracy of PtcCO2 was not superior to that of PETCO2 for assessing PCO2 levels and should not be used to monitor these levels in subjects with severe brain injury.

journal_name

Respir Care

journal_title

Respiratory care

authors

Rosier S,Launey Y,Bleichner JP,Laviolle B,Jouve A,Malledant Y,Seguin P

doi

10.4187/respcare.02726

subject

Has Abstract

pub_date

2014-08-01 00:00:00

pages

1242-7

issue

8

eissn

0020-1324

issn

1943-3654

pii

respcare.02726

journal_volume

59

pub_type

杂志文章
  • Noninvasive ventilation in neuromuscular disease: equipment and application.

    abstract::Noninvasive support of ventilation is commonly needed in patients with neuromuscular disease. Body ventilators, which are used rarely, function by applying intermittent negative pressure to the thorax or abdomen. More commonly, noninvasive positive-pressure ventilation (NPPV) is used. This therapy can be applied with ...

    journal_title:Respiratory care

    pub_type: 杂志文章,评审

    doi:

    authors: Hess DR

    更新日期:2006-08-01 00:00:00

  • Heliox and forward-leaning posture improve the efficacy of nebulized bronchodilator in acute asthma: a randomized trial.

    abstract:BACKGROUND:Heliox and forward-leaning posture (torso inclined forward at 50-60° with the elbows resting on the thighs) are adjuncts in the administration of nebulized bronchodilator to patients with acute asthma. METHODS:We randomized 59 patients who presented to the emergency department in severe asthma crisis, into ...

    journal_title:Respiratory care

    pub_type: 杂志文章,随机对照试验

    doi:10.4187/respcare.00963

    authors: Brandão DC,Britto MC,Pessoa MF,de Sá RB,Alcoforado L,Matos LO,Silva TN,de Andrade AD

    更新日期:2011-07-01 00:00:00

  • Comparison of sampler filling times among selected arterial blood samplers.

    abstract:BACKGROUND:True arterial blood samples are essential in making clinical decisions for respiratory patients. Previous studies using only the Portex Pro-Vent arterial sampler have shown a significant difference between arterial and venous filling times. The goal of this study was to determine whether there is a statistic...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.03480

    authors: McMillen CN,Adu-Yeboah S,Kagarise E,Morton RL,Yuce B,Douce FH

    更新日期:2015-04-01 00:00:00

  • The impact of computer-age technology on respiratory therapy.

    abstract::Computer-age technology is changing the face of respiratory therapy as it is that of nearly every other technical field. In some hospital respiratory therapy departments computers are presently being used for a wide range of functions such as blood gas result reporting, billing, budgeting, purchasing, hemodynamic calc...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: McPeck M

    更新日期:1982-07-01 00:00:00

  • Comparison of cardiopulmonary responses during 2 incremental step tests in subjects with COPD.

    abstract:BACKGROUND:It is well established that the work rate increment size affects the duration of test and physiological responses to exercise during cycling in patients with COPD. However, this has never been tested for incremental step tests. OBJECTIVE:To compare the exercise tolerance time, cardiopulmonary stress, and p...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.01742

    authors: de Andrade CH,de Camargo AA,de Castro BP,Malaguti C,Dal Corso S

    更新日期:2012-11-01 00:00:00

  • Recruitment maneuver in prevention of hypoxia during percutaneous dilational tracheostomy: randomized trial.

    abstract:BACKGROUND:Percutaneous dilational tracheostomy (PDT) can potentially lead to hypoxia and alveolar derecruitment. The aim of this prospective study was to evaluate the efficacy of performing a recruitment maneuver (RM) before tracheostomy, in order to improve oxygenation. METHODS:We enrolled 29 eligible trauma patient...

    journal_title:Respiratory care

    pub_type: 杂志文章,随机对照试验

    doi:10.4187/respcare.01798

    authors: Franchi F,Cubattoli L,Faltoni A,Scolletta S,Falciani E,Mastrocinque E,Giomarelli P,Patroniti N

    更新日期:2012-11-01 00:00:00

  • Dexmedetomidine for sedation in the parturient with respiratory failure requiring noninvasive ventilation.

    abstract::Dexmedetomidine is a selective alpha-2 receptor agonist that possesses both sedative and analgesic properties, with minimal respiratory depression. We report the successful administration of dexmedetomidine on a 16-year-old primigravida woman that allowed the patient to tolerate application of bi-level positive airwa...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.01733

    authors: Duan M,Lee J,Bittner EA

    更新日期:2012-11-01 00:00:00

  • Oxygenation With a Single Portable Pulse-Dose Oxygen-Conserving Device and Combined Stationary and Portable Oxygen Delivery Devices in Subjects With COPD.

    abstract:BACKGROUND:Portable oxygen devices simplify and facilitate patient therapy. This study was designed to compare S(pO2) and patient satisfaction with a portable oxygen concentrator or a combined system consisting of a fixed device with continuous-flow oxygen dispensation and a portable device with pulse dispensation for ...

    journal_title:Respiratory care

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.4187/respcare.03470

    authors: Yáñez AM,Prat JP,Álvarez-Sala JL,Calle M,Díaz Lobato S,García Gonzalez JL,Rodríguez Gonzalez-Moro JM,Galera-Martínez R,Villasante C,Ramos I,Franco-Gay M,de Lucas P

    更新日期:2015-03-01 00:00:00

  • Effect of albuterol on expiratory resistance in mechanically ventilated patients.

    abstract:BACKGROUND:In mechanically ventilated patients with COPD, the response of the expiratory resistance of the respiratory system (expiratory R(RS)) to bronchodilators is virtually unknown. OBJECTIVE:To examine the effect of inhaled albuterol on expiratory R(RS), and the correlation of albuterol-induced changes in expirat...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.00984

    authors: Kondili E,Alexopoulou C,Prinianakis G,Xirouchaki N,Vaporidi K,Georgopoulos D

    更新日期:2011-05-01 00:00:00

  • Purchasing medical equipment: a protocol for decision making.

    abstract::In light of today's tight hospital financial picture caused by Medicare's prospective payment system and local constraints, capital expenditures must be made with great care and forethought. The process for purchase decision making should assess the need for the device; specifically identify what is required; carefull...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Clark JT

    更新日期:1985-08-01 00:00:00

  • Bacterial colonization of ultrasonic nebulizers: implications for frequency of circuit changing.

    abstract:UNLABELLED:We conducted a prospective study of 50 consecutive postoperative patients over a 5-month period to characterize the bacterial contamination of ultrasonic nebulizers (USNs) after 24, 48, and 72 hours (h) of use. METHODS:Samples of the USN effluent mist and reservoir fluid were cultured and the results were c...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Witek TJ Jr,York R,Noonan R Jr,Topf BM,Hebb H,Kowalczyk J,Dean NL,Doubler K

    更新日期:1986-12-01 00:00:00

  • Socioeconomic Variations in Use of Prescription Medicines for COPD: A Register-Based Study.

    abstract:BACKGROUND:The purpose of this study was to examine socioeconomic variations in the use of prescription medicines among elderly subjects with COPD. METHODS:Data from the Danish national administrative registers were used. The study population included 1,365 individuals >60 y old residing in the Municipality of Copenha...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.04335

    authors: Jacobsen R,Ekholm O,Rasmussen NK,Hansen EH,Frølich A

    更新日期:2016-07-01 00:00:00

  • Gradual versus sudden weaning from nasal CPAP in preterm infants: a pilot randomized controlled trial.

    abstract:BACKGROUND:There is paucity of information on the weaning of nasal CPAP (NCPAP) in preterm infants. As the weaning from NCPAP can be gradual or sudden, we wanted to determine which of the 2 methods was better. METHODS:A prospective randomized trial was conducted to compare the success of weaning from NCPAP when using ...

    journal_title:Respiratory care

    pub_type: 杂志文章,随机对照试验

    doi:10.4187/respcare.01999

    authors: Rastogi S,Wong W,Gupta A,Bhutada A,Deepa Rastogi.,Maimonides Neonatal Group

    更新日期:2013-03-01 00:00:00

  • Reduced FEV1/FVC and FEV1 in the Normal Range as a Physiological Variant.

    abstract:BACKGROUND:Healthy individuals without respiratory symptoms can sometimes present with low FEV1/FVC. The objective of this study was to characterize and compare subjects without symptoms and with reduced FEV1/FVC but normal FEV1 with subjects with mild obstructive lung disease. METHODS:Fifty healthy subjects with FEV1...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.06131

    authors: Dos Santos Andreata L,Soares MR,Pereira CA

    更新日期:2019-05-01 00:00:00

  • Flow Decay: A Novel Spirometric Index to Quantify Dynamic Airway Resistance.

    abstract:BACKGROUND:Dynamic airway resistance from obstructive disease causes a concavity in the mid-expiratory portion of the spirometric flow-volume loop. We developed a simple model to measure the exponential decay in air flow during forced exhalation to quantify the extent of dynamic airway obstruction and facilitate the de...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.04850

    authors: Oh A,Morris TA,Yoshii IT,Morris TA

    更新日期:2017-07-01 00:00:00

  • Measurements Obtained From Esophageal Balloon Catheters Are Affected by the Esophageal Balloon Filling Volume in Children With ARDS.

    abstract:BACKGROUND:Esophageal balloon inflation volume may affect the accuracy of transpulmo-nary pressure estimates in adults, but the effect is unknown in pediatrics. Using a combination bench and human study, we sought to determine a range of optimal filling volumes for esophageal balloon catheters and to derive a technique...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.05685

    authors: Hotz JC,Sodetani CT,Van Steenbergen J,Khemani RG,Deakers TW,Newth CJ

    更新日期:2018-02-01 00:00:00

  • Pleural fluid amino-terminal brain natriuretic peptide in patients with pleural effusions.

    abstract:BACKGROUND:Definite diagnosis of transudative or exudative pleural fluids often presents a diagnostic dilemma. The aim of this study was to evaluate whether amino-terminal brain natriuretic peptide (NT-proBNP) levels in pleural fluid has a diagnostic value for discriminating heart-failure-related pleural effusions from...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.01818

    authors: Cincin A,Abul Y,Ozben B,Tanrikulu A,Topaloglu N,Ozgul G,Karakurt S,Oktay A

    更新日期:2013-02-01 00:00:00

  • Sleep-disordered breathing and COPD: the overlap syndrome.

    abstract::Sleep-disordered breathing (mainly obstructive sleep apnea [OSA]) and COPD are among the most common pulmonary diseases, so a great number of patients have both disorders; this "overlap syndrome" causes more severe nocturnal hypoxemia than either disease alone. This common combination of OSA and COPD has important imp...

    journal_title:Respiratory care

    pub_type: 杂志文章,评审

    doi:

    authors: Owens RL,Malhotra A

    更新日期:2010-10-01 00:00:00

  • Use of High-Flow Nasal Cannula Oxygen Therapy in Subjects With ARDS: A 1-Year Observational Study.

    abstract:BACKGROUND:Beneficial effects of high-flow nasal cannula (HFNC) oxygen on oxygenation and respiratory parameters have been reported in a small number of subjects with acute respiratory failure (ARF). We aimed to evaluate its effect in subjects with ARDS. METHODS:This was an observational single-center study. Prospecti...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.03423

    authors: Messika J,Ben Ahmed K,Gaudry S,Miguel-Montanes R,Rafat C,Sztrymf B,Dreyfuss D,Ricard JD

    更新日期:2015-02-01 00:00:00

  • Perceived benefits of the use of learning contracts to guide clinical education in respiratory care students.

    abstract:BACKGROUND:The benefits of contract learning have been identified in the literature as increased individualization to meet the student's individual needs, promotion of learner independence, and development of lifelong learning behaviors among students. METHODS:I used an "action research" approach to implement the cont...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Rye KJ

    更新日期:2008-11-01 00:00:00

  • Home oxygen in remote areas.

    abstract::Delivering long-term oxygen therapy in the homes of persons who live in remote areas can be a problem. Four isolated areas in North America--rural Manitoba, Canada; the Northwest Territories of Canada; Alaska; and the Colorado mountains--have home oxygen programs that illustrate that these problems can be overcome. Th...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Lertzman M

    更新日期:1983-07-01 00:00:00

  • Clinical and physiological outcomes of a university-hospital pulmonary rehabilitation program.

    abstract::Pulmonary rehabilitation programs have resulted in improvements in quality of life, capacity for carrying out daily activities, and physical conditioning, as well as reduced hospitalization and cost of care. In our retrospective study, we reviewed the data of 75 patients who had participated in Loma Linda University M...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Bebout DE,Hodgkin JE,Zorn EG,Yee AR,Sammer EA

    更新日期:1983-11-01 00:00:00

  • Congenital pulmonary airway malformation: a case report and review of the literature.

    abstract::Congenital parenchymal lung malformations have an estimated incidence at 1:25,000-1:35,000 births. We present a case of this rare congenital abnormality in a 38 year-old male, review the current literature with discussion of proposed causes, malignant potential, and management strategies. A 38-year-old white male pre...

    journal_title:Respiratory care

    pub_type: 杂志文章,评审

    doi:10.4187/respcare.00727

    authors: McDonough RJ,Niven AS,Havenstrite KA

    更新日期:2012-02-01 00:00:00

  • Extracorporeal life support: moving at the speed of light.

    abstract::Extracorporeal life support (ECLS), or extracorporeal membrane oxygenation (ECMO) as it is also known, has been used to support over 45,000 patients to date. Overall survival is 62%. After many years of no change in equipment and technology, there has been a recent flurry of new pumps, cannulas, and oxygenators avail...

    journal_title:Respiratory care

    pub_type: 杂志文章,评审

    doi:10.4187/respcare.01369

    authors: Dalton HJ

    更新日期:2011-09-01 00:00:00

  • Aerosol delivery to ventilated infant and pediatric patients.

    abstract::Infants have low tidal volume, vital capacity, and functional residual capacity, and short respiratory cycles (low I:E ratio), which result in a low residence time for aerosol particles and, thus, low pulmonary deposition of aerosol particles (< 1% of the nominal dose), compared to adults (8-22%). Scintigraphy data su...

    journal_title:Respiratory care

    pub_type: 杂志文章,评审

    doi:

    authors: Fink JB

    更新日期:2004-06-01 00:00:00

  • Health Coaching in Severe COPD After a Hospitalization: A Qualitative Analysis of a Large Randomized Study.

    abstract:BACKGROUND:We recently demonstrated in a randomized study the feasibility and effectiveness of telephone-based health coaching using motivational interviewing on decreasing hospital readmissions and improving quality of life at 6 and 12 months after hospital discharge. In this qualitative study, we sought to explore th...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.05574

    authors: Benzo RP,Kirsch JL,Hathaway JC,McEvoy CE,Vickers KS

    更新日期:2017-11-01 00:00:00

  • Feasibility and Efficacy of Pulsed-Dose Oxygen Delivery During Noninvasive Ventilation.

    abstract:BACKGROUND:It is difficult to apply noninvasive ventilation (NIV) simultaneously with pulsed-dose oxygen delivery. We evaluated the feasibility and efficacy of pulsed-dose oxygen delivery during NIV. METHODS:A bench study was conducted using a simulated lung during NIV, with a breathing frequency of 10 or 20 breaths/m...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.06922

    authors: Li LL,Yang HY,Jin H,Dai B,Peng Y,Tan W

    更新日期:2020-09-01 00:00:00

  • Use of a computerized respiratory care record system to study utilization of IPPB therapy.

    abstract::Increases in the utilization of respiratory therapy and the need to avoid its misuse have placed increasing management responsibilities on medical and technical supervisors of respiratory care services. To improve our managerial capabilities we designed a computerized respiratory care record system. Respiratory therap...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:

    authors: Chase CR,Merz BA,Shinozaki T,Greenwood SA,Deane RS

    更新日期:1983-03-01 00:00:00

  • Bronchoscopic lung volume reduction for pulmonary emphysema: preliminary experience with endobronchial occluder.

    abstract:OBJECTIVE:To describe the self-expanding endobronchial occluder, as utilized in bronchoscopic lung volume reduction, with a 36 month follow-up procedure. METHODS:Twenty-three subjects with severe emphysema were recruited and underwent flexible bronchoscopic placement of self-expanding endobronchial occluders. Outcomes...

    journal_title:Respiratory care

    pub_type: 杂志文章

    doi:10.4187/respcare.02218

    authors: Song L,Zhao F,Ti X,Chen W,Wang G,Wu C,Li Y

    更新日期:2013-08-01 00:00:00

  • A risk tertiles model for predicting mortality in patients with acute respiratory distress syndrome: age, plateau pressure, and P(aO(2))/F(IO(2)) at ARDS onset can predict mortality.

    abstract:BACKGROUND:Predicting mortality has become a necessary step for selecting patients for clinical trials and defining outcomes. We examined whether stratification by tertiles of respiratory and ventilatory variables at the onset of acute respiratory distress syndrome (ARDS) identifies patients with different risks of dea...

    journal_title:Respiratory care

    pub_type: 杂志文章,多中心研究

    doi:10.4187/respcare.00811

    authors: Villar J,Pérez-Méndez L,Basaldúa S,Blanco J,Aguilar G,Toral D,Zavala E,Romera MA,González-Díaz G,Nogal FD,Santos-Bouza A,Ramos L,Macías S,Kacmarek RM,Hospitales Españoles Para el Estudio de la Lesión Pulmonar (HELP) Network*.

    更新日期:2011-04-01 00:00:00