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Diaphragmatic breathing

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https://www.readbyqxmd.com/read/28292963/electrical-activity-of-the-diaphragm-during-ncpap-and-high-flow-nasal-cannula
#1
C G de Waal, G J Hutten, J V Kraaijenga, F H de Jongh, A H van Kaam
OBJECTIVE: To determine if the electrical activity of the diaphragm, as measure of neural respiratory drive and breathing effort, changes over time in preterm infants transitioned from nasal continuous positive airway pressure (nCPAP) to high flow nasal cannula (HFNC). DESIGN: Prospective observational study. SETTING: Neonatal intensive care unit. PATIENTS: Stable preterm infants transitioned from nCPAP to HFNC using a 1:1 pressure to flow ratio...
March 14, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28277885/regional-ventilation-is-the-main-determinant-of-alveolar-deposition-of-coarse-particles-in-the-supine-healthy-human-lung-during-tidal-breathing
#2
Rui Carlos Sá, Kirby L Zeman, William D Bennett, G Kim Prisk, Chantal Darquenne
BACKGROUND: To quantify the relationship between regional lung ventilation and coarse aerosol deposition in the supine healthy human lung, we used oxygen-enhanced magnetic resonance imaging and planar gamma scintigraphy in seven subjects. METHODS: Regional ventilation was measured in the supine posture in a 15 mm sagittal slice of the right lung. Deposition was measured by using planar gamma scintigraphy (coronal scans, 40 cm FOV) immediately postdeposition, 1 hour 30 minutes and 22 hours after deposition of (99m)Tc-labeled particles (4...
March 9, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28260954/low-power-system-for-the-acquisition-of-the-respiratory-signal-of-neonates-using-diaphragmatic-electromyography
#3
Róbinson Torres, Sergio López-Isaza, Elisa Mejía-Mejía, Viviana Paniagua, Víctor González
INTRODUCTION: An apnea episode is defined as the cessation of breathing for ≥15 seconds or as any suspension of breathing accompanied by hypoxia and bradycardia. Obtaining information about the respiratory system in a neonate can be accomplished using electromyography signals from the diaphragm muscle. OBJECTIVE: The purpose of this paper is to illustrate a method by which the respiratory and electrocardiographic signals from neonates can be obtained using diaphragmatic electromyography...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/28259495/effects-of-diaphragmatic-breathing-patterns-on-balance-a-preliminary-clinical-trial
#4
Rylee J Stephens, Mitchell Haas, William L Moore, Jordan R Emmil, Jayson A Sipress, Alex Williams
OBJECTIVE: The purpose of this study was to determine the feasibility of performing a larger study to determine if training in diaphragmatic breathing influences static and dynamic balance. METHODS: A group of 13 healthy persons (8 men, 5 women), who were staff, faculty, or students at the University of Western States participated in an 8-week breathing and balance study using an uncontrolled clinical trial design. Participants were given a series of breathing exercises to perform weekly in the clinic and at home...
March 1, 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28253561/the-neurology-of-acutely-failing-respiratory-mechanics
#5
Eelco F M Wijdicks
Forces involved in breathing-which effectively pull in air-are the diaphragmatic, intercostal, spine, and neck muscles. Equally important are the bulbar musculature maintaining the architecture of a patent airway conduit and abdominal wall and internal intercostal muscles providing cough. Acute injury along a neural trajectory from brainstem to muscle will impair the coordinated interaction between these muscle groups. Acutely failing respiratory mechanics can be caused by central and peripheral lesions. In central lesions, the key lesion is in the nucleus ambiguus innervating the dilator muscles of the soft palate, pharynx, and larynx, but abnormal respiratory mechanics rarely coincide with abnormalities of the respiratory pattern generator...
March 2, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28223038/nanoconjugate-bound-adenosine-a1-receptor-antagonist-enhances-recovery-of-breathing-following-acute-cervical-spinal-cord-injury
#6
Zeljka Minic, Sharowyn Wilson, Fangchao Liu, Abdulghani Sankari, Guangzhao Mao, Harry Goshgarian
Respiratory complications in patients with spinal cord injury (SCI) are common and can have a negative impact on the quality of patients' lives. Previously, we found that intradiaphragmatic administration of the nanoconjugate-bound A1 adenosine receptor antagonist, 1,3-dipropyl-8-cyclopentylxanthine (DPCPX) induced recovery of diaphragm function following SCI in rats. When administered immediately following the injury, recovery was observed as early as 3days following SCI and it persisted until the end of the study, 28days after the drug delivery...
February 20, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28215134/drainage-of-pleural-effusion-improves-diaphragmatic-function-in-mechanically-ventilated-patients
#7
Michele Umbrello, Giovanni Mistraletti, Andrea Galimberti, Ilaria R Piva, Ottavia Cozzi, Paolo Formenti
BACKGROUND: Pleural effusion adversely affects the pressuregenerating capacity of the diaphragm. It uncouples the lung and chest wall, which may result in diaphragmatic dysfunction. Information on the effects of effusion drainage on diaphragmatic function is limited, but several studies report relief of dyspnoea after drainage, which was attributed to improved diaphragmatic mechanics, even if this issue was never formally addressed. OBJECTIVE: To investigate the effect of drainage of unilateral pleural effusion on diaphragmatic function...
March 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/28177206/propofol-sedation-reduces-diaphragm-activity-in-spontaneously-breathing-patients-ultrasound-assessment
#8
Monica Rocco, Luigi Maggi, Giorgio Ranieri, Giovanni Ferrari, Cesare Gregoretti, Giorgio Conti, Roberto A DE Blasi
BACKGROUND: The diaphragm is the most important respiratory muscle in humans, and the close relationship between inspired volume and diaphragmatic movement in normal subjects has led to investigations into diaphragmatic activity using ultrasound, during spontaneous breathing and sedative drug infusion. METHODS: A total of 36 consecutive patients undergoing diagnostic procedures under deep propofol sedation were studied. Ultrasound measurements included the following: diaphragmatic thickening end-inspiration (TEI) and end-expiration (TEE)...
March 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28152227/3d-myocardial-t1-mapping-using-saturation-recovery
#9
Giovanna Nordio, Markus Henningsson, Amedeo Chiribiri, Adriana D M Villa, Torben Schneider, René M Botnar
PURPOSE: To propose a 3D quantitative high-resolution T1 mapping technique, called 3D SASHA (saturation-recovery single-shot acquisition), which combines a saturation recovery pulse with 1D-navigator-based-respiratory motion compensation to acquire the whole volume of the heart in free breathing. The sequence was tested and validated both in a T1 phantom and in healthy subjects. MATERIALS AND METHODS: The 3D SASHA method was implemented on a 1.5T scanner. A diaphragmatic navigator was used to allow free-breathing acquisition and the images were acquired with a resolution of 1...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28137269/a-diaphragmatic-electrical-activity-based-optimization-strategy-during-pressure-support-ventilation-improves-synchronization-but-does-not-impact-work-of-breathing
#10
Francois Beloncle, Lise Piquilloud, Nuttapol Rittayamai, Christer Sinderby, Hadrien Rozé, Laurent Brochard
BACKGROUND: Poor patient-ventilator synchronization is often observed during pressure support ventilation (PSV) and has been associated with prolonged duration of mechanical ventilation and poor outcome. Diaphragmatic electrical activity (Eadi) recorded using specialized nasogastric tubes is a surrogate of respiratory brain stem output. This study aimed at testing whether adapting ventilator settings during PSV using a protocolized Eadi-based optimization strategy, or Eadi-triggered and -cycled assisted pressure ventilation (or PSVN) could (1) improve patient-ventilator interaction and (2) reduce or normalize patient respiratory effort as estimated by the work of breathing (WOB) and the pressure time product (PTP)...
January 31, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28133553/congenital-diaphragmatic-hernia-presenting-in-a-7-day-old-infant
#11
Christopher Rouse, Luke Schmidt, Lee Brock, Angela Fagiana
A 7-day-old male infant presented to the emergency room after respiratory distress was noted at an outpatient well child check. On exam, he was observed to have tachypnea, increased work of breathing, and decreased breath sounds on the left side of the chest. On chest X-ray, he was found to have a left-sided congenital diaphragmatic hernia. The infant was transported to a tertiary care facility where the defect was repaired without complication. Interestingly, the mother had a history of a normal antenatal ultrasound, completed at 19 + 2 weeks of gestational age...
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/28100203/diaphragmatic-breathing-during-virtual-reality-exposure-therapy-for-aviophobia-functional-coping-strategy-or-avoidance-behavior-a-pilot-study
#12
Youssef Shiban, Julia Diemer, Jana Müller, Johanna Brütting-Schick, Paul Pauli, Andreas Mühlberger
BACKGROUND: Although there is solid evidence for the efficacy of in vivo and virtual reality (VR) exposure therapy for a specific phobia, there is a significant debate over whether techniques promoting distraction or relaxation have impairing or enhancing effects on treatment outcome. In the present pilot study, we investigated the effect of diaphragmatic breathing (DB) as a relaxation technique during VR exposure treatment. METHOD: Twenty-nine patients with aviophobia were randomly assigned to VR exposure treatment either with or without diaphragmatic breathing (six cycles per minute)...
January 18, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28065378/difference-in-diaphragmatic-motion-during-tidal-breathing-in-a-standing-position-between-copd-patients-and-normal-subjects-time-resolved-quantitative-evaluation-using-dynamic-chest-radiography-with-flat-panel-detector-system-dynamic-x-ray-phrenicography
#13
Yoshitake Yamada, Masako Ueyama, Takehiko Abe, Tetsuro Araki, Takayuki Abe, Mizuki Nishino, Masahiro Jinzaki, Hiroto Hatabu, Shoji Kudoh
OBJECTIVES: To quantitatively compare diaphragmatic motion during tidal breathing in a standing position between chronic obstructive pulmonary disease (COPD) patients and normal subjects using dynamic chest radiography. MATERIALS AND METHODS: Thirty-nine COPD patients (35 males; age, 71.3±8.4years) and 47 normal subjects (non-smoker healthy volunteers) (20 males; age, 54.8±9.8years) underwent sequential chest radiographs during tidal breathing using dynamic chest radiography with a flat panel detector system...
February 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28063152/dysfunction-of-central-control-of-breathing-in-amyotrophic-lateral-sclerosis
#14
Bradley N Howell, Daniel S Newman
Dysfunction in central control of breathing in some amyotrophic lateral sclerosis (ALS) patients is not adequately detected with standard evaluation for respiratory dysfunction. Nocturnal oximetry reveals periodic desaturations despite normal respiratory muscle movements. Continuous diaphragmatic electromyography has provided in vivo data consistent with impaired central control of diaphragm motor units. Current understanding of central control of breathing identifies the pre-Botzinger complex as the inspiratory rhythm generator...
January 7, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28054365/mapping-for-acute-transvenous-phrenic-nerve-stimulation-study-maps-study
#15
Lukas R C Dekker, Bart Gerritse, Avram Scheiner, Lilian Kornet
BACKGROUND: Central sleep apnea syndrome, correlated with the occurrence of heart failure, is characterized by periods of insufficient ventilation during sleep. This acute study in 15 patients aims to map the venous system and determine if diaphragmatic movement can be achieved by phrenic nerve stimulation at various locations within the venous system. METHODS: Subjects underwent a scheduled catheter ablation procedure. During the procedural waiting time, one multielectrode electrophysiology catheter was subsequently placed at the superior and inferior vena cava and the junctions of the left jugular and left brachiocephalic vein and right jugular and right brachiocephalic vein, for phrenic nerve stimulation (1-2 seconds ON/2-3 seconds OFF, 40 Hz, pulse width 210 μs)...
March 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28048704/mo-fg-bra-09-towards-an-optimal-breath-holding-procedure-for-radiotherapy-differences-in-organ-motion-during-inhalation-and-exhalation-breath-holds
#16
E Lens, O Gurney-Champion, A van der Horst, D Tekelenburg, Z van Kesteren, M Parkes, G van Tienhoven, A Nederveen, A Bel
PURPOSE: Breath-holding (BH) is often used to reduce organ motion during radiotherapy. The aim of this study was to determine the differences in pancreatic and diaphragmatic motion during BH between inhalation and exhalation BHs with variable lung volumes and to investigate whether motion increases/decreases during BH. METHODS: Sixteen healthy volunteers were asked to perform four different 60-second BHs, from fully inflated to fully deflated lungs (i.e. lung volumes of: 100%, ∼70%, ∼30% and 0% of inspiratory capacity) three times (total of 192 BHs)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046287/su-f-j-120-evaluation-of-the-combined-effect-of-body-orientation-and-breathing-on-organ-movement-in-thorax-using-multi-step-deformable-image-registration
#17
C Guy, E Weiss, S Che, W Sleeman, N Mukhopadhyay, M Rosu
PURPOSE: Use deformable registration to map more complex anatomies that include changes associated with both different body positions and breathing, and evaluate the resultant respiratory excursions for tumors and relevant organs at risk. METHODS: Same-day exhale and inhale datasets from prone and supine 4D CT scans of lung cancer patients have been registered using the Elastix software package through a 3 step process: (1) rigid registration for bony alignment (2) deformable multiresolution B-Spline registration of entire anatomy (3) deformable multiresolution B-Spline registration of lung parenchyma (to improve lung vasculature alignment)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040503/are-interferential-electrical-stimulation-and-diaphragmatic-breathing-exercises-beneficial-in-children-with-bladder-and-bowel-dysfunction
#18
Vesna D Zivkovic, Ivona Stankovic, Lidija Dimitrijevic, Mirjana Kocic, Hristina Colovic, Marina Vlajkovic, Andjelka Slavkovic, Milica Lazovic
OBJECTIVE: To evaluate the effects of interferential current (IC) stimulation and diaphragmatic breathing exercises (DBEs) in children with bladder and bowel dysfunction. PATIENTS AND METHODS: Seventy-nine children with dysfunctional voiding and chronic constipation who were failures of primary care interventions were included in the prospective clinical study. All the children were checked for their medical history regarding lower urinary tract symptoms and bowel habits...
December 28, 2016: Urology
https://www.readbyqxmd.com/read/28040456/exhaled-breath-condensate-analysis-from-intubated-newborns-by-nano-hplc-coupled-to-high-resolution-ms
#19
A S Kononikhin, N L Starodubtseva, V V Chagovets, A Y Ryndin, A A Burov, I A Popov, A E Bugrova, R A Dautov, A O Tokareva, Y L Podurovskaya, O V Ionov, V E Frankevich, E N Nikolaev, G T Sukhikh
Invasiveness of examination and therapy methods is a serious problem for intensive care and nursing of premature infants. Exhaled breath condensate (EBC) is the most attractive biofluid for non-invasive methods development in neonatology for monitoring the status of intubated infants. The aim of the study was to propose an approach for EBC sampling and analysis from mechanically ventilated neonates. EBC collection system with good reproducibility of sampling was demonstrated. Discovery-based proteomic and metabolomic studies were performed using nano-HPLC coupled to high resolution MS...
March 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27989446/time-resolved-quantitative-analysis-of-the-diaphragms-during-tidal-breathing-in-a-standing-position-using-dynamic-chest-radiography-with-a-flat-panel-detector-system-dynamic-x-ray-phrenicography-initial-experience-in-172-volunteers
#20
Yoshitake Yamada, Masako Ueyama, Takehiko Abe, Tetsuro Araki, Takayuki Abe, Mizuki Nishino, Masahiro Jinzaki, Hiroto Hatabu, Shoji Kudoh
RATIONALE AND OBJECTIVES: Diaphragmatic motion in a standing position during tidal breathing remains unclear. The purpose of this observational study was to evaluate diaphragmatic motion during tidal breathing in a standing position in a health screening center cohort using dynamic chest radiography in association with participants' demographic characteristics. MATERIALS AND METHODS: One hundred seventy-two subjects (103 men; aged 56.3 ± 9.8 years) underwent sequential chest radiographs during tidal breathing using dynamic chest radiography with a flat panel detector system...
December 15, 2016: Academic Radiology
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