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Jet ventilation

Jacob Freedman, Piotr Harbut
This is a case report of microwave energy being used to ablate an inoperable metastasis of a Wilms' tumour in a 6-year-old boy using state-of-the-art navigated computed tomography targeting and high-frequency jet ventilation to reduce organ displacement and the potential risk of procedure-related pneumothorax. After the ablation, the young boy had high-dose chemotherapy followed by an autologous stem cell transplantation with rapid reduction of three recurrent right-sided lung metastases.
May 2016: Case Reports in Oncology
Nagat S El-Shmaa, Doaa El Amrousy, Wael El Feky
OBJECTIVE: The objective of this study was to assess the effectiveness of pre-emptive dexmedetomidine versus amiodarone in preventing junctional ectopic tachycardia (JET) in pediatric cardiac surgery. DESIGN: This is a prospective, controlled study. SETTING: This study was carried out at a single university hospital. SUBJECTS AND METHODS: Ninety patients of both sexes, American Society of Anesthesiologists Physical Status II and III, age range from 2 to 18 years, and scheduled for elective cardiac surgery for congenital and acquired heart diseases were selected as the study participants...
October 2016: Annals of Cardiac Anaesthesia
Nitish Fokeerah, Xinwei Liu, Yonggang Hao, Lihua Peng
Managing a patient scheduled for bronchoesophageal fistula repair is challenging for the anesthetist. If appropriate ventilation strategy is not employed, serious complications such as hypoxemia, gastric distension, and pulmonary aspiration can occur. We present the case of a 62-year-old man with a bronchoesophageal fistula in the left main stem bronchus requiring the insertion of a Y-shaped tracheobronchial stent through a rigid bronchoscope, under general anesthesia. We successfully managed this intervention and herein report this case to demonstrate the effectiveness of underwater seal gastrostomy tube drainage used in conjunction with high-frequency jet ventilation during bronchoesophageal fistula stenting...
2016: Case Reports in Anesthesiology
Caineng Wu, Jianqi Wei, Qingyun Cen, Xuefan Sha, Qingxiang Cai, Wuhua Ma, Ying Cao
A difficult airway may lead to hypoxia and brain damage. The WEI Nasal Jet Tube (WNJ) is a new nasal pharyngeal tube that applies supraglottic jet oxygenation and ventilation (SJOV) for patients during tracheal intubation without the need for mask ventilation. We evaluated the effectiveness and safety of SJOV-assisted fibre-optic bronchoscopy (FOB) using the WNJ in the management of difficult tracheal intubations. A total of 50 adult patients with Cormack-Lehane grade ≥3 and general anesthesia with tracheal intubation were randomly assigned to either the laryngeal mask airway (LMA) or WNJ groups...
September 14, 2016: Internal and Emergency Medicine
Kevin M Valentine, Ajit A Sarnaik, Hitesh S Sandhu, Ashok P Sarnaik
OBJECTIVE: To describe the utility of high frequency jet ventilation (HFJV) as a rescue therapy in patients with respiratory failure secondary to respiratory syncytial virus (RSV) that was refractory to conventional mechanical ventilation (CMV). DESIGN: Descriptive study by retrospective review. SETTING: Pediatric intensive care unit at a tertiary care children's hospital. PATIENTS: Infants on mechanical ventilation for respiratory failure due to RSV...
2016: Frontiers in Pediatrics
L V Duggan, B Ballantyne Scott, J A Law, I R Morris, M F Murphy, D E Griesdale
BACKGROUND: Transtracheal jet ventilation (TTJV) is recommended in several airway guidelines as a potentially life-saving procedure during the 'Can't Intubate Can't Oxygenate' (CICO) emergency. Some studies have questioned its effectiveness. METHODS: Our goal was to determine the complication rates of TTJV in the CICO emergency compared with the emergency setting where CICO is not described (non-CICO emergency) or elective surgical setting. Several databases of published and unpublished literature were searched systematically for studies describing TTJV in human subjects...
September 2016: British Journal of Anaesthesia
Robert A Fearnley, Sheela Badiger, Richard J Oakley, Imran Ahmad
The safety of high pressure source ventilation (jet ventilation) is dependent upon upper airway patency to facilitate adequate passive expiration and prevent increasing intrathoracic pressure and its associated deleterious sequelae. Distortions in airway anatomy may make passive expiration inadequate or impossible in some patients. We report the elective use of the Ventrain device to provide ventilation in a clinical setting of upper airway obstruction in a patient with post radiation fibrosis that had previously prevented passive expiration during attempted high pressure source ventilation...
September 2016: Journal of Clinical Anesthesia
Muhammad H E ElHansy, Marina E Boules, Heba Farid, Henry Chrystyn, Sameh Kamal El-Maraghi, Mohamed Bakry Al-Kholy, Assem Fouad Mohamed El-Essawy, Maha M Abdelrahman, Amira S A Said, Raghda R S Hussein, Hoda Rabea, Mohamed E A Abdelrahim
Aerodynamic characteristics of aerosol delivery during invasive mechanical ventilation (IMV) are mostly determined by inserting cascade impactor in the circuit. Impactor might have some effect on airflow within IMV. Hence, the aim of the present study was to develop and evaluate new in vitro aerodynamic characterization methodology without affecting airflow in IMV. Breathing simulator was set in standard adult IMV circuit with inspiratory and expiratory pressures of 20 and 5 cm H2O, 1:3 inspiratory-expiratory ratio, 15 breaths min(-1), and tidal volume of 500 ml...
August 30, 2016: Pharmaceutical Development and Technology
Remco R Berendsen, Rob C Lindeman, Merel Boom, Leon P H J Aarts, Eveline L A van Dorp, Luc J Teppema
Sustained and chronic hypoxia lead to a rise in pulmonary ventilation (hypoxic ventilatory response, HVR) and to an increase in pulmonary vascular resistance (hypoxic pulmonary vasoconstriction, HPV). In this study, we examined the effect of a clinical intravenous dose of recombinant human erythropoietin (rHuEPO,50 IU kg(-1) ) on the isocapnic HVR and HPV in 7 male and 7 female subjects by exposing them to hypoxia for 20 min (end-tidal PO2  ∼ 50 mmHg) while measuring their ventilation and estimating pulmonary arterial pressure from the maximal velocity of the regurgitant jet over the tricuspid valve during systole (ΔPmax) with echocardiography...
July 13, 2016: Experimental Physiology
Lijun Wang, Xiaoke Shang, Qiu Qiu, Rong Lu, Shuna Xiao, Dingyang Li, Jie Yu, Changdong Zhang, Cheng Xia, Hongmei Zhou, Gangcheng Zhang
Postoperative junctional ectopic tachycardia (JET) is a narrow complex tachycardia and most frequently occurs during and after surgical repair of certain types of congenital heart defects. Postoperative junctional ectopic tachycardia may produce unfavorable hemodynamics that prolongs stays in the cardiac intensive care unit and hospital, prolongs time on a ventilator, and occasionally requires the use of extracorporeal membrane oxygenation (ECMO) as rescue therapy. The present report describes a rare case of late-onset postoperative junctional ectopic tachycardia, which occurred 13 days after the deployment of a perimembranous ventricular septal defect (PmVSD) occluder in a 17-year-old female teenager...
July 27, 2016: International Heart Journal
Demet Altun, Nükhet Sivrikoz, Emre Çamcı
Wegener granulomatosis (WG) is a multisystemic disorder characterised by granulomatous inflammation of the respiratory system. The growing of proliferative tissue towards the larynx and trachea may cause airway obstruction on account of subglottic stenosis. In this situation, the surgical goal is to eliminate the airway obstruction by providing natural airway anatomy. While mild lesions do not require surgical intervention, in fixed lesions, surgical intervention is required, such as tracheostomy, laser resection and dilatation...
October 2015: Turkish Journal of Anaesthesiology and Reanimation
Sandra Kampe, Miguel Rocha, Kaid Darwiche, Uwe Ebmeyer, Stamatis Georgios
We present a 54 year old female patient who had undergone a Ross procedure in 2009, and in 2013 again a replacement of the aortic root and arch with bioprothetic material and homograft replacement of the pulmonalis walve. Postoperatively the patient had experienced a functional compromising tracheal stenosis and a persistent esophago-tracheal fistula. Endoscopic attempts to close the fistula were not successful, and the fistula was "bridged" with an endoscopically positioned tracheal stent.We report the anaesthesiological management during the open surgical repair of the esophago-tracheal fistula and resection of 2 tracheal rings with high frequency jet ventilation over a period of 2...
June 2016: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
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
J Defosse, M Schieren, A Böhmer, V von Dossow, T Loop, F Wappler, M U Gerbershagen
BACKGROUND/OBJECTIVE: This study's objective was to evaluate current thoracic anaesthesia practice in Germany and to quantify potential differences depending on the hospital's level of care. MATERIALS AND METHODS: A four-part online survey containing 28 questions was mailed to all anaesthesiology department chairs (n = 777) registered with the German Society of Anaesthesiology and Intensive Care Medicine. RESULTS: The general response rate was 31...
June 2016: Der Anaesthesist
Wen Wang, Jiang-tao Lin, Nan Su, Ying Nong, Hong Hong, Yi-qing Yin, Cheng-hui Li
OBJECTIVE: To compare the effectiveness of high-frequency jet ventilation via Wei jet nasal airway and controlled ventilation with improved laryngeal mask airway during bronchial thermoplasty. METHODS: Twenty-eight patients undergoing bronchial thermoplasty were equally divided into two groups: group A (high-frequency jet ventilation through Wei jet nasal airway) and group B (controlled ventilation with improved laryngeal mask airway). Pulse oxygenation,heart rate,and mean arterial blood pressure were recorded after entering the operating room (T0), 1 minute after administration/induction (T1), bronchoscope inserting (T2), 15 minutes (T3)/30 minutes (T4)/45 minutes (T5) after ventilation,at the end of the operation (T6), and at the recovery of patients' consciousness (T7)...
April 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
Mark Hauswald, Erik K Hauswald
No abstract text is available yet for this article.
September 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
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...
2016: Cochrane Database of Systematic Reviews
Xiao-nong Liao, Zhao-bin Sun, Na He, Pu-sheng Zhao, Zhi-qiang Ma
The concentration of PM₂.₅ decreased very rapidly from 18:00 to 23:00 on 17th Mar. 2015 in Beijing area. No cold air bringing strong north wind influenced Beijing. The reason leading to the clean away of PM₂.₅ was discussed. The results showed that a boundary layer jet played a key role. The ventilation in the boundary layer went up with the enhancement of southwesterly wind speed, which was favorable to the dilution of pollution. Besides, the development of jet also caused the increase of vertical wind shear...
January 15, 2016: Huan Jing Ke Xue= Huanjing Kexue
Wolfgang Gesierich, Konstantinos Samitas, Frank Reichenberger, Juergen Behr
Chartis is increasingly used for bronchoscopic assessment of collateral ventilation before endobronchial valve (EBV) treatment for severe emphysema. Its prognostic value is, however, limited by the airway collapse phenomenon. The frequency and clinical significance of the collapse phenomenon remain largely unknown.We performed a retrospective analysis of 92 patients undergoing Chartis evaluation under spontaneous breathing (n=55) or jet ventilation (n=37) from May 2010 to November 2013. Collateral ventilation status (positive/negative/collapse phenomenon/unclear) was reassessed and correlated with high-resolution computed tomography (HRCT) fissure analysis and clinical response...
June 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
T F Pézier, G-M Widmer, G F Huber
We present a patient who presented to our clinic with airway obstruction secondary to oropharygeal cancer. He underwent emergent tracheostomy with JET ventilation, the latter resulting in a "full house" of barotraumatic complications including pneumothorax, pneumomediastinum, pneumoperitoneum, pneumoretroperitoneum and pneumo-scrotum. Free air, while sometimes dramatic as in our case, need not always be a cause for alarm and can often be managed expectantly. Our patient was treated with only a chest drain and otherwise made an uneventful recovery...
December 29, 2015: Acta Otorhinolaryngologica Italica
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