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neonatal jet ventilation

Sanja Zivanovic, Kuberan Pushparajah, Sandy Calvert, Neil Marlow, Reza Razavi, Janet L Peacock, Anne Greenough
OBJECTIVES: To test the hypothesis that pulmonary artery pressures were higher in school aged children born extremely premature than those born at term. We also wanted to assess whether pulmonary artery pressures differed between children born prematurely with or without bronchopulmonary dysplasia (BPD) or between those randomized in the neonatal period to different ventilation modes. STUDY DESIGN: Transthoracic echocardiography was performed on 193 children born extremely premature (106 had BPD) and 110 children born at term when they were 11-14 years of age...
December 2017: Journal of Pediatrics
Mackenzie Noonan, Joseph W Turek, John M Dagle, Steven J McElroy
BACKGROUND: Patent ductus arteriosus (PDA) treatment is typically pharmacologic, but if unsuccessful, surgical ligation is commonly performed. High-frequency jet ventilation (HFJV) is used at the University of Iowa Stead Family Children's Hospital for extremely low birth weight infants. Historically, neonates requiring PDA ligation were temporarily transferred to conventional ventilation (CV) prior to surgery. OBJECTIVE: The objective of this study was to determine whether conversion was necessary...
September 2017: World Journal for Pediatric & Congenital Heart Surgery
Craig R Wheeler, Craig D Smallwood, Iris O'Donnell, Daniel Gagner, Martha C Sola-Visner
BACKGROUND: High-frequency jet ventilation (HFJV) has been used in conjunction with conventional ventilation for infants with respiratory failure. We sought to identify parameters that were associated with successful application of HFJV in patients with hypercapnic respiratory failure. METHODS: A single-center, retrospective review of infants who received HFJV was conducted. Subjects were enrolled if birthweight was ≤2,000 g and capillary PCO2 was ≥55 mm Hg...
July 2017: Respiratory Care
Shahram Madani, Ádám Bach, Vera Matievics, Eszter Erdélyi, Balázs Sztanó, Ilona Szegesdi, Paul F Castellanos, László Rovó
OBJECTIVES/HYPOTHESIS: Bilateral vocal cord paralysis in early childhood is a life-threatening condition, which often requires immediate intervention. One of the treatment options is a quick, reversible simple suture vocal cord lateralizing technique, whereby the arytenoid cartilage is directly lateralized to the normal abducted position. Considering pediatric laryngeal anatomy, a small endolaryngeal thread guide instrument was designed for precise suture insertion. STUDY DESIGN: New instrument validation...
July 2017: Laryngoscope
Maria Rosal Martins, Michel Van Boven, Sandra Schmitz, Marc Hamoir, Francis Veyckemans
INTRODUCTION: The authors modified an adult jet ventilation injector (Hunsaker Mon-Jet Ventilation Tube(®)) to be able to provide transglottal high-frequency jet ventilation (HFJV) in small children undergoing laryngeal procedures with CO2 laser. METHODS AND MATERIAL: Retrospective review of the anesthetic records of all children younger than 2years undergoing transglottal HFJV for CO2 laser laryngeal procedures using this modified adult injector between 2006 and 2013...
August 2016: Journal of Clinical Anesthesia
Yahya H Ethawi, Ayman Abou Mehrem, John Minski, Chelsea A Ruth, Peter G Davis
BACKGROUND: Respiratory distress syndrome (RDS) is considered one of the major contributors to severe pulmonary dysfunction and consequent death in preterm infants. Despite widespread improvements in care, including increased utilization of antenatal steroids, use of surfactant replacement therapy, and advances in conventional mechanical ventilation (CMV), chronic lung disease (CLD) occurs in 42% of surviving preterm infants born at less than 28 weeks gestational age (GA). High frequency ventilation (HFV) aims to optimize lung expansion while minimizing tidal volume (Vt) to decrease lung injury...
May 6, 2016: Cochrane Database of Systematic Reviews
D Mokra, L Tomcikova Mikusiakova, P Mikolka, P Kosutova, M Jurcek, M Kolomaznik, A Calkovska
Patients with acute lung injury are ventilated by conventional mechanical ventilation (CMV) rather than high-frequency jet ventilation (HFJV). This study estimated the potential usefulness of HFJV in acute lung injury. The issue was addressed by comparing the effects on lung function of CMV and HFJV in two rabbit models of neonatal acute lung injury: repetitive saline lung lavage (LAV) and meconium aspiration syndrome (MAS) induced by intratracheal meconium instillation. The animals were then ventilated with either HFJV or CMV for 4 h...
2016: Advances in Experimental Medicine and Biology
Tien-Pei Fang, Hui-Ling Lin, Shu-Hua Chiu, Szu-Hui Wang, Robert M DiBlasi, Ying-Huang Tsai, James B Fink
BACKGROUND: High frequency oscillatory ventilation (HFOV) is used in critically ill patients with severe hypoxemic respiratory failure. The purpose of this in vitro study was to determine the efficiency of aerosol delivery with different lung parameters during simulated neonatal, pediatric, and adult HFOV. METHODS: Sensormedics 3100A/B ventilators were used to deliver infant, pediatric, and adult HFOV. Two types of aerosol generators were chosen for testing: 1) a continuous jet nebulizer (JN) with a unit-dose of 5...
October 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
Maria Ximena Rojas-Reyes, Paola A Orrego-Rojas
BACKGROUND: Chronic lung disease (CLD) is a major cause of mortality and morbidity in very low birth weight infants despite increased use of antenatal steroids and surfactant therapy. Ventilator injury and oxygen toxicity are thought to be important factors in the pathogenesis of chronic pulmonary disease. Evidence from animal studies and from adult human studies indicates that high-frequency jet ventilation may reduce the severity of lung injury associated with mechanical ventilation...
October 16, 2015: Cochrane Database of Systematic Reviews
Melissa Ehlers, Chad Pezzano, Laura Leduc, John Brooks, Plinio Silva, Helena Oechsner, Anica Crnkovic, Igor Galay, Farzana Afroze
Laparoscopic and open thoracic surgery in the neonate typically results in hypercapnea and low cardiac output with often poor surgical visualization as the anesthesiologist attempts to correct the respiratory derangements usually seen. We describe three cases in which jet ventilation provided not only superior ventilation with a return to normocapnea but also ideal operating conditions. In addition, jet ventilation utilizes lower mean airway pressures which typically results in improved cardiac output.
August 2015: Paediatric Anaesthesia
Mohammad Abraham Kazemizadeh Gol, Angela Black, James Sidman
OBJECTIVES/HYPOTHESIS: To demonstrate that neonatal ventilators can expose patients to high noise levels through bone conduction (BC) as well as air conduction (AC). STUDY DESIGN: Observational study. METHODS: Three ventilators and various settings on a positive airway pressure machine (continuous, high bilevel, and low bilevel pressure) were tested. A sound level meter was used to measure the noise levels at a set distance from the ventilator to represent AC, on the ventilator circuit to represent BC at the alveolus, and within the ventilator circuit...
October 2015: Laryngoscope
Leslie A Lusk, Katherine C Wai, Anita J Moon-Grady, Martina A Steurer, Roberta L Keller
OBJECTIVES: To describe the natural history of pulmonary hypertension (PH) and the risk of death and pulmonary morbidity associated with the persistence of PH through the neonatal hospitalization for these infants. STUDY DESIGN: We performed a retrospective cohort study of infants with congenital diaphragmatic hernia (CDH) cared for at University of California San Francisco (2002-2012). Infants with other major anomalies or syndromes were excluded (n = 43). Clinical echocardiograms were performed weekly for up to 6 weeks or until PH resolved off respiratory support or until hospital discharge...
February 2015: Journal of Pediatrics
Hasan Kahveci, Osman Yilmaz, Ummu Zeynep Avsar, Murat Ciftel, Omer Kilic, Fuat Laloglu, Kezban Ozturk
OBJECTIVE: This study was performed to examine the effectiveness and safety of oral sildenafil and inhaled iloprost in term newborns with persistent pulmonary hypertension of the newborn (PPHN). PATIENTS AND METHODS: Oral sildenafil and inhaled iloprost were administered to 27 and 20 neonates, respectively, for treatment of persistent pulmonary hypertension. All patients were term infants at 37 gestational weeks or older. In the sildenafil group, 14 patients had meconium aspiration syndrome, 8 had asphyxia (hypoxic ischemic encephalopathy stages II and III), 3 had congenital pneumonia, 1 had transient tachypnea, and 1 had idiopathic PPHN...
December 2014: Pediatric Pulmonology
Mei-Jy Jeng, Yu-Sheng Lee, Pei-Chen Tsao, Wen-Jue Soong
Air leak syndrome includes pulmonary interstitial emphysema, pneumothorax, pneumomediastinum, pneumopericardium, pneumoperitoneum, subcutaneous emphysema, and systemic air embolism. The most common cause of air leak syndrome in neonates is inadequate mechanical ventilation of the fragile and immature lungs. The incidence of air leaks in newborns is inversely related to the birth weight of the infants, especially in very-low-birth-weight and meconium-aspirated infants. When the air leak is asymptomatic and the infant is not mechanically ventilated, there is usually no specific treatment...
November 2012: Journal of the Chinese Medical Association: JCMA
Paul E Marik, Christopher Fuller, Alexander Levitov, Elizabeth Moll
BACKGROUND: High sound pressure levels may be harmful to the maturing newborn. Current guidelines suggest that the sound pressure levels within a neonatal intensive care unit should not exceed 45 dB(A). It is likely that environmental noise as well as the noise generated by the incubator fan and respiratory equipment may contribute to the total sound pressure levels. Knowledge of the contribution of each component and source is important to develop effective strategies to reduce noise within the incubator...
November 2012: Pediatric Critical Care Medicine
Manoj Gupta, Stephen Guertin, Steve Martin, Said Omar
In a 29-day-old premature infant with respiratory syncytial virus (RSV) pneumonia, we have shown an additive effect of high-frequency oscillatory ventilation (HFOV) and continuous inhalation of prostacyclin (iPGI(2)) with improvement of ventilation and oxygenation. The addition of continuous inhaled iPGI(2) to HFOV was beneficial in the treatment of hypoxemic respiratory failure owing to RSV-associated pneumonia. The improvement in alveolar recruitment by increasing lung expansion by HFOV along with less ventilation-perfusion mismatch by iPGI(2) appears to be responsible for the synergistic effect and favorable clinical outcome...
August 2012: Pediatrics
Beena G Sood, Zahid Latif, Yimin Shen, Robert J Galli, Charles W Dunlap, Matthew J Gelmini, E Mark Haacke
BACKGROUND: We have previously demonstrated aerosol delivery during conventional and high frequency oscillatory (HFOV) ventilation using magnetic resonance imaging (MRI) in piglets. There are no reports on aerosol delivery during high frequency jet ventilation (HFJV). OBJECTIVE: To compare delivery of aerosolized gadopentetate dimeglumine (Gd-DTPA) in 3 neonatal ventilator circuits: conventional mechanical ventilation, HFOV, and HFJV. METHODS: Aerosols of Gd-DTPA (0...
November 2012: Respiratory Care
P Papoff, E Caresta, M Manganaro, R Cicchetti, M Mancuso, V Ferro, C Moretti
Mechanical ventilation is considered a supportive, nontherapeutic technology used to perform the work of breathing for patients who are unable to do so on their own. In neonatology, mechanical ventilation is often used for premature neonates who are unable to sustain ventilation because of reduced functional residual capacity due to surfactant deficiency. Mechanical ventilation is thus an attempt to mimic the respiratory system's physiological function of gas exchange until the respiratory system reaches maturation...
June 2010: Minerva Pediatrica
Beena G Sood, Yimin Shen, Zahid Latif, Bob Galli, Elizabeth J Dawe, E Mark Haacke
BACKGROUND AND OBJECTIVE: Pulmonary delivery of aerosols during high-frequency oscillatory ventilation (HFOV) has not been studied in vivo. This study investigated the pulmonary delivery of aerosolized gadopentetate dimeglumine (Gd-DTPA) in a HFOV circuit in piglets using MRI to visualize contrast excretion in the kidneys. METHODS: Four ventilated piglets (3-7 days old, 1.7-2.4 kg at birth) received aerosolized Gd-DTPA in a HFOV circuit for different durations of time (60, 30, 20 and 10 min)...
April 2010: Respirology: Official Journal of the Asian Pacific Society of Respirology
E W Coates, M E Klinepeter, T M O'Shea
UNLABELLED: Term and near-term infants with pulmonary hypertension are frequently treated with inhaled nitric oxide. This therapy can be delivered with high-frequency ventilation, but there has been limited study of the relative effectiveness of high-frequency jet ventilation and high-frequency oscillatory ventilation. OBJECTIVE: To compare short-term clinical outcomes of neonates with pulmonary hypertension treated with inhaled nitric oxide plus either high-frequency jet ventilation or high-frequency oscillatory ventilation...
October 2008: Journal of Perinatology: Official Journal of the California Perinatal Association
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