1,580 results match your criteria high-frequency jet


Nasal high-frequency jet ventilation (NHFJV) as a novel means of respiratory support in extremely low birth weight infants.

J Perinatol 2021 Jun 14. Epub 2021 Jun 14.

Division of Neonatology, Department of Pediatrics, LAC+USC Medical Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.

Objective: Describe our experience of successfully using nasal high-frequency jet ventilation (NHFJV) in extremely low birth weight infants with respiratory failure.

Study Design: A retrospective review was conducted on 16 infants with birth weights <1000 g who received NHFJV from 2015 to 2019. Successful use was defined as avoiding intubation for at least 72 hours and demonstrating tolerance after being placed on NHFJV. Read More

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High-Frequency Jet Ventilation in Infants with Congenital Heart Disease.

Respir Care 2021 Jun 9. Epub 2021 Jun 9.

Duke Children's Hospital, Division of Pediatric Critical Care Medicine, Durham, NC.

High-frequency jet ventilation (HFJV) is primarily used in neonates but may also have a role in the treatment of infants with congenital heart disease and severe respiratory failure. We hypothesized HFJV would result in improved gas exchange in these infants. We retrospectively reviewed the records of all pediatric subjects with complex congenital heart disease treated HFJV in the pediatric cardiac ICU between 2014 and 2018. Read More

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Refractory Pulmonary Interstitial Emphysema in Extreme Premature Newborn.

AJP Rep 2021 Mar 27;11(2):e61-e64. Epub 2021 May 27.

Department of Pediatrics, Texas A&M Health Science Center, Baylor Scott & White McLane Children's Medical Center, Temple, Texas.

Pulmonary interstitial emphysema (PIE) occurs when air leaks into the pulmonary interstitium due to overdistension of distal airways, it occurs mainly in neonates with respiratory distress syndrome who need positive pressure ventilation but has also been reported in spontaneously breathing infants. Herein, we report on an extremely low birth weight infant with severe persistent PIE, while on invasive mechanical ventilation (high-frequency oscillatory ventilation, high-frequency jet ventilation, and neurally adjust ventilator assist) managed successfully with 2 weeks of selective right lung ventilation after failure of more conservative measures, including shorter periods of right mainstem intubation, before the prolonged trial that was successful. Read More

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Postoperative hypertension during early recovery following liver tumour ablation. A retrospective study.

Acta Anaesthesiol Scand 2021 May 24. Epub 2021 May 24.

Institution for Clinical Sciences, Karolinska Institutet, Danderyd University Hospital, 182 88, Stockholm, Sweden.

Background: High frequency jet ventilation is necessary to reduce organ movements during stereotactic liver ablation. However, postoperative hypertensive episodes especially following irreversible electroporation ablation compared to microwave ablation initiated this study. The hypothesis was that hypertensive episodes could be related to ventilation or ablation method. Read More

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Cold atmospheric pressure He-plasma jet and plasma ball interactions with the Venus flytrap: Electrophysiology and side effects.

Bioelectrochemistry 2021 Aug 1;140:107833. Epub 2021 May 1.

Department of Chemistry, Oakwood University, 7000 Adventist Blvd., Huntsville, AL 35896, USA. Electronic address:

Cold atmospheric pressure radio frequency plasma (CAPP) can play an important role in agriculture, medicine, biophysical and bioelectrochemical applications, disinfection and sterilization, synthesis of different compounds, nitrogen fixation, and treatment of surfaces. Here we found that reactive oxygen and nitrogen species, UV-Vis photons, and high-frequency strong electromagnetic fields with an amplitude of a few kV produced by a cold plasma jet can interact with bio-tissue and damage it if the plasma treatment is long enough. The electrophysiological effects of CAPP treatment of bio-tissue and electrical signals transmission were measured in the Venus flytrap. Read More

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Novel approach of rigid bronchoscopy concurrent with cesarean section and bronchial arterial embolism for patients with massive hemoptysis during pregnancy: case reports and literature review.

Ann Transl Med 2021 Apr;9(7):582

Department of Critical Care Medicine, Peking University First Hospital, Beijing, China.

Massive hemoptysis can be life-threatening and is frequently encountered in clinical practice, but rare during pregnancy. There have been limited case reports of massive hemoptysis in pregnancy in patients with conditions such as Takayasu's arteritis, bronchiectasis, bronchial carcinoid tumor, and tuberculosis. The most important management is early control of the hemorrhage and airway protection. Read More

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High-Frequency Jet Ventilation in Neonatal and Pediatric Subjects: A Narrative Review.

Respir Care 2021 May;66(5):845-856

Division of Pediatric Critical Care Medicine, Duke University Medical Center, Durham, North Carolina.

High-frequency ventilation is commonly utilized with neonates and with children with severe respiratory failure. Both high-frequency oscillatory ventilation (HFOV) and high-frequency jet ventilation (HFJV) are used extensively in neonates. HFJV can also be used in older, larger children. Read More

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In-circuit high-frequency jet ventilation to reduce organ motion in a child undergoing sarcoma ablation.

Anaesth Rep 2021 Jan-Jun;9(1):55-58. Epub 2021 Apr 7.

UCL Centre for Medical Imaging University College London Hospitals NHS Foundation Trust London UK.

Patients with primary or metastatic solid tumours can be treated with minimally invasive image-guided procedures as an alternative to surgical resection. Reducing organ motion during these procedures is crucial so that tumours can be accurately targeted and treatment delivered within a small margin, limiting potential damage to adjacent structures. As ventilation is the main cause of motion, there has been a shift from conventional ventilation towards the use of in-circuit high-frequency jet ventilation techniques for these procedures. Read More

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Anesthesia airway management for tracheal resection and reconstruction: a single-center case series.

Ann Palliat Med 2021 Mar;10(3):3354-3363

Department of Anesthesiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.

Background: Anesthesia airway management is challenging during tracheal resection and reconstruction as these surgical procedures involve the airway. This case series describes four approaches to airway management in patients undergoing tracheal resection and reconstruction and discusses their advantages and disadvantages.

Methods: Thirteen patients underwent 1 of the following 4 kinds of airway management techniques during tracheal resection and reconstruction between 2013 and 2019: intubation, intubation with high frequency jet ventilation (HFJV), non-intubation, and venovenous extracorporeal membrane oxygenation (VV-ECMO). Read More

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Novel technique for identification of the pulmonary intersegmental plane using manual jet ventilation during pulmonary segmentectomy.

Wideochir Inne Tech Maloinwazyjne 2021 Mar 1;16(1):169-174. Epub 2020 Jun 1.

Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan.

Introduction: For successful pulmonary segmentectomy, the identification of boundaries between segments is important. Previous measures include tracing the intersegmental vessels by staining with a dye via the affected pulmonary artery or bronchus and inflating with oxygen via a high frequency ventilator. However, problems with these methods have been reported. Read More

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Cold Atmospheric Plasma (CAP) for the Treatment of Actinic Keratosis and Skin Field Cancerization: Clinical and High-Frequency Ultrasound Evaluation.

Dermatol Ther (Heidelb) 2021 Jun 18;11(3):855-866. Epub 2021 Mar 18.

Dermatology Department, ASST Spedali Civili di Brescia, University of Brescia, P.le Spedali Civili 1, 25123, Brescia, Italy.

Introduction: Cold atmospheric plasma (CAP) has been clinically demonstrated to be an effective treatment for actinic keratosis (AK) in a number of case series. In this study, we evaluated the efficacy of CAP in the treatment of multiple AKs and assessed morphological changes induced on the skin field of cancerization both clinically and by high-frequency ultrasound (HFUS).

Methods: Patients with multiple grade I-II AKs of the scalp and/or face who were resistant or intolerant to conventional field-directed treatments were enrolled. Read More

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High frequency jet ventilation through mask contributes to oxygen therapy among patients undergoing bronchoscopic intervention under deep sedation.

BMC Anesthesiol 2021 Mar 2;21(1):65. Epub 2021 Mar 2.

Department of Anesthesiology, Emergency General Hospital, Beijing, 100028, China.

Background: High frequency jet ventilation (HFJV) is an open ventilating technique to maintain ventilation for emergency or difficult airway. However, whether jet ventilation or conventional oxygen therapy (COT) is more effective and safe in maintaining adequate oxygenation, is unclear among patients with airway stenosis during bronchoscopic intervention (BI) under deep sedation.

Methods: A prospective randomized cohort study was conducted to compare COT (high flow oxygen) with normal frequency jet ventilation (NFJV) and HFJV in oxygen supplementation during BI under deep sedation from March 2020 to August 2020. Read More

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High-Frequency Jet Ventilation Is Making Slow Inroads to the Pediatric ICU.

Respir Care 2021 02;66(2):349-350

Department of PediatricsDivision of Critical Care MedicineCincinnati Children's Hospital Medical CenterCincinnati, OhioUniversity of Cincinnati College of MedicineCincinnati, Ohio

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February 2021

Dynamic modes of inflow jet in brain aneurysms.

Authors:
Trung Bao Le

J Biomech 2021 02 13;116:110238. Epub 2021 Jan 13.

Department of Civil and Environmental Engineering, North Dakota State University, CIE 201, 1410 North 14th Avenue, Fargo, ND 58105-5285, United States; NDSU-UND Biomedical Engineering Program, United States; Center for Cellular Biointerfaces in Science and Engineering, United States. Electronic address:

The transition of the inflow jet to turbulence is crucial in understanding the pathology of brain aneurysms. Previous works Le et al. (2010, 2013) have shown evidence for a highly dynamic inflow jet in the ostium of brain aneurysms. Read More

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February 2021

A case of neonatal diabetes insipidus following dexamethasone for bronchopulmonary dysplasia.

J Neonatal Perinatal Med 2020 Dec 16. Epub 2020 Dec 16.

Foothills Medical Centre, University of Calgary and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.

Background: Diabetes insipidus (DI) is a disease resulting from defects in the arginine vasopressin system responsible for regulating body water homeostasis. It is characterized by polyuria with increased serum osmolality and sodium and can result from congenital or acquired disorders.

Clinical Presentation: A baby was admitted to NICU for extreme prematurity (25 weeks gestation), extreme low birth weight (900 grams) and respiratory distress. Read More

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December 2020

High-Frequency Jet Ventilation for a Patient With Tracheomediastinal Fistula, Tension Pneumomediastinum, and Pneumothorax: A Case Report.

A A Pract 2020 Dec 17;14(14):e01362. Epub 2020 Dec 17.

Surgical Intensive Care, Singapore General Hospital, Sengkang General Hospital, Singapore.

Tracheomediastinal fistula (TMF) is an uncommon condition and carries a high mortality. We report the anesthetic management of a patient with TMF using stent insertion via rigid bronchoscopy. The TMF was a complication of double-lumen endotracheal tube insertion resulting in a tension pneumomediastinum. Read More

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December 2020

Uniportal video-assisted thoracoscopic lung sparing tracheo-bronchial and carinal sleeve resections.

J Thorac Dis 2020 Oct;12(10):6198-6209

Thoracic Surgery Department, Tongji University Affiliated Shanghai Pulmonary Hospital, Shanghai, China.

Pathology arising from the intrathoracic portion of the trachea (distal trachea), the carina and the main bronchi is usually neoplastic and is mainly treated with surgery. Resection of the intrathoracic portion of the trachea, the carina and the main bronchi for neoplastic lesions does not necessitate lung resection and is traditionally being conducted via open surgery. Video-assisted thoracic surgery (VATS) is witnessing an exponential growth and is the treatment of choice for early-stage non-small cell lung cancer (NSCLC). Read More

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October 2020

Therapeutic bronchoscopy for central airway diseases.

Eur Respir Rev 2020 Dec 18;29(158). Epub 2020 Nov 18.

National and Kapodistrian University of Athens, Interventional Pulmonology Unit, "Sotiria" Hospital, Athens, Greece

Over the past century rigid bronchoscopy has been established as the main therapeutic means for central airway diseases of both benign and malignant aetiology. Its use requires general anaesthesia and mechanical ventilation usually in the form of manual or high-frequency jet ventilation. Techniques applied to regain patency of the central airways include mechanical debulking, thermal ablation (laser, electrocautery and argon plasma coagulation) and cryo-surgery. Read More

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December 2020

High-Dose Erythropoietin in Extremely Low Gestational Age Neonates Does Not Alter Risk of Retinopathy of Prematurity.

Neonatology 2020 28;117(5):650-657. Epub 2020 Oct 28.

Division of Neonatology, Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington, USA.

Introduction: The Preterm Erythropoietin (Epo) Neuroprotection (PENUT) Trial sought to determine the safety and efficacy of early high-dose Epo as a potential neuroprotective treatment. We hypothesized that Epo would not increase the incidence or severity of retinopathy of prematurity (ROP).

Methods: A total of 941 infants born between 24-0/7 and 27-6/7 weeks' gestation were randomized to 1,000 U/kg Epo or placebo intravenously for 6 doses, followed by subcutaneous or sham injections of 400 U/kg Epo 3 times a week through 32 weeks post-menstrual age. Read More

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October 2020

Unsolved Mysteries: High-Frequency Jet Ventilation in the Neonatal ICU.

Respir Care 2020 11;65(11):1784-1785

Respiratory Care ServicesDuke University Medical CenterDurham, North Carolina.

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November 2020

High-Frequency Jet Ventilation in Pediatric Acute Respiratory Failure.

Respir Care 2021 Feb 2;66(2):191-198. Epub 2020 Oct 2.

Division of Pediatric Critical Care Medicine, Duke Children's Hospital, Durham, North Carolina.

Background: High-frequency jet ventilation (HFJV) is primarily used in premature neonates; however, its use in pediatric patients with acute respiratory failure has been reported. The objective of this study was to evaluate HFJV use in the pediatric critical care setting. We hypothesized that HFJV would be associated with improvements in oxygenation and ventilation. Read More

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February 2021

Effect of ventilator modes on neonatal cerebral and peripheral oxygenation using near-infrared spectroscopy.

Acta Paediatr 2021 04 18;110(4):1151-1156. Epub 2020 Oct 18.

Division of Perinatal-Neonatal Medicine, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York, NY, USA.

Aim: The effect of ventilator modes on regional tissue oxygenation in premature neonates with respiratory distress syndrome (RDS) has yet to be delineated. Previous studies have looked at global oxygen delivery and have not assessed the effects on regional tissue oxygenation. Our aim in this study was to assess such tissue oxygenation in premature babies with RDS in relation to differing modes of ventilation using near-infrared spectroscopy (NIRS). Read More

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High-frequency vs. conventional ventilation at the time of CDH repair is not associated with higher mortality and oxygen dependency: a retrospective cohort study.

Pediatr Surg Int 2020 Nov 16;36(11):1275-1280. Epub 2020 Sep 16.

Departments of Surgery, Division of Pediatric Surgery and Pediatrics, Child Health and Children's Hospital Research Institute of Manitoba, University of Manitoba, AE402-840 Sherbrook Street, Winnipeg, MB, R3A 1R9, Canada.

Purpose: The VICI-trial reported that in patients with congenital diaphragmatic hernia (CDH), mortality or bronchopulmonary dysplasia (BPD) were equivalent using conventional mechanical ventilation (CMV) and high-frequency oscillatory ventilation. The purpose of this study was to determine if the mode of ventilation at the time of CDH repair affected mortality or oxygen dependence at 28 days.

Methods: We performed a retrospective cohort study of infants born wih CDH from 1991 to 2015. Read More

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November 2020

Fine Governance of Difficult Tracheostomy in Difficult Airway with Stridor and Respiratory Distress.

Indian J Otolaryngol Head Neck Surg 2020 Jul 21:1-4. Epub 2020 Jul 21.

Gandhi Medical College and Associated Hospital, Bhopal, MP 462001 India.

Difficult airway is a commonly encountered problem in the anesthesia practice, might needing otolaryngologist expert in creation of surgical airway. Supraglottic airways, surgical or needle cricothyrotomy, high frequency jet ventilation, cardiopulmonary bypass (Tunstall in Can J Anaesth 36:611-613, 1989) are initial rescue measures in such scenario. But in otolaryngology practice, patient presenting with stridor having difficult airway and difficult tracheostomy concurrently will definitely pose problems resulting in life-threatening consequences. Read More

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"Selective bronchus-blowing" method for effective inflate-deflate line identification in lung segmentectomy.

J Thorac Dis 2020 May;12(5):2146-2152

Department of Thoracic Surgery, Tokyo Medical and Dental University, Tokyo, Japan.

Background: We examined two methods for the intraoperative selective bronchial delivery of air, and compared their effectiveness.

Methods: We recruited patients undergoing lung resection with the selective bronchus-blowing method in pulmonary segmentectomy for lung tumors. We assessed two types of bronchial ventilation methods: high-frequency jet ventilation (HFJV) and the bronchus-blowing method, which deliver air to target bronchi using HFJV or a 20G cannula inserted directly into the bronchi, respectively. Read More

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Extending KIDs to the Mid-IR for Future Space and Suborbital Observatories.

J Low Temp Phys 2020 14;199(3):696-703. Epub 2020 Feb 14.

Department of Astrophysics and Planetary Sciences, University of Colorado at Boulder, Boulder, CO 80309 USA.

The galaxy evolution probe (GEP) is a concept for a probe-class space observatory to study the physical processes related to star formation over cosmic time. To do so, the mid- and far-infrared (IR) spectra of galaxies must be studied. These mid- and far-IR observations require large multi-frequency arrays, sensitive detectors. Read More

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February 2020

40-MHz high-frequency vector Doppler imaging for superficial venous valve flow estimation.

Med Phys 2020 Sep 19;47(9):4020-4031. Epub 2020 Jul 19.

Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan.

Purpose: Doppler ultrasound imaging has been used widely for diagnosing vascular diseases. Recently, vector Doppler imaging (VDI) has been proposed for visualizing the blood flow in all directions to yield more detailed information for estimating flow conditions. Increasing the resolution of VDI is important for the structural mapping of superficial vessels with microstructure. Read More

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September 2020

Comparison of different methods for lung immobilization in an animal model.

Radiother Oncol 2020 09 21;150:151-158. Epub 2020 Jun 21.

Section of Anaesthesiology and Intensive Care Medicine, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.

Background And Purpose: Respiratory-induced motion introduces uncertainties in the delivery of dose in radiotherapy treatments. Various methods are used clinically, e.g. Read More

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September 2020

High frequency jet ventilation at the distal end of tracheostenosis during flexible bronchoscopic resection of large intratracheal tumor: Case series.

Medicine (Baltimore) 2020 Jun;99(25):e19929

Department of Anesthesiology.

Introduction: Resection of a large intratracheal tumor with severe obstruction via flexible bronchoscope remains a formidable challenge to anesthesiologists. Many artificial airways positioned proximal to tracheal obstruction can not ensure adequate oxygen supply. How to ensure effective gas exchange is crucial to the anesthetic management. Read More

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