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Air embolism

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https://www.readbyqxmd.com/read/28070749/an-automated-microemboli-detection-and-classification-system-using-backscatter-rf-signals-and-differential-evolution
#1
Karim Ferroudji, Nabil Benoudjit, Ayache Bouakaz
Embolic phenomena, whether air or particulate emboli, can induce immediate damages like heart attack or ischemic stroke. Embolus composition (gaseous or particulate matter) is vital in predicting clinically significant complications. Embolus detection using Doppler methods have shown their limits to differentiate solid and gaseous embolus. Radio-frequency (RF) ultrasound signals backscattered by the emboli contain additional information on the embolus in comparison to the traditionally used Doppler signals...
January 9, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28051764/the-use-of-fibrin-sealant-during-non-emergency-surgery-a-systematic-review-of-evidence-of-benefits-and-harms
#2
Steven J Edwards, Fay Crawford, Michelle Helena van Velthoven, Andrea Berardi, George Osei-Assibey, Mariana Bacelar, Fatima Salih, Victoria Wakefield
BACKGROUND: Fibrin sealants are used in different types of surgery to prevent the accumulation of post-operative fluid (seroma) or blood (haematoma) or to arrest haemorrhage (bleeding). However, there is uncertainty around the benefits and harms of fibrin sealant use. OBJECTIVES: To systematically review the evidence on the benefits and harms of fibrin sealants in non-emergency surgery in adults. DATA SOURCES: Electronic databases [MEDLINE, EMBASE and The Cochrane Library (including the Cochrane Database of Systematic Reviews, the Database of Abstracts of Reviews of Effects, the Health Technology Assessment database and the Cochrane Central Register of Controlled Trials)] were searched from inception to May 2015...
December 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28049197/venous-air-embolism-during-hysteroscopic-myomectomy-an-analysis-of-7-cases
#3
Cédric Van Dijck, Steffen Rex, Jasper Verguts, Dirk Timmerman, Marc Van de Velde, An Teunkens
Venous air embolism (VAE) is a rare but potentially fatal complication of hysteroscopic myomectomy. The symptoms of VAE range from mild and clinically insignificant to complete cardiovascular collapse during surgery. Anesthesiologists and surgeons should be aware of the clinical characteristics and predisposing factors of this possible adverse event. This report analyzes 7 cases of VAE, which occurred at the University Hospitals Leuven, in patients undergoing hysteroscopic myomectomy from April 2009 to April 2011...
January 4, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28047030/su-g-iep3-05-effects-of-image-receptor-technology-and-dose-reduction-software-on-radiation-dose-estimates-for-fluoroscopically-guided-interventional-fgi-procedures
#4
Z Merritt, J Dave, D Eschelman, C Gonsalves
PURPOSE: To investigate the effects of image receptor technology and dose reduction software on radiation dose estimates for most frequently performed fluoroscopically-guided interventional (FGI) procedures at a tertiary health care center. METHODS: IRB approval was obtained for retrospective analysis of FGI procedures performed in the interventional radiology suites between January-2011 and December-2015. This included procedures performed using image-intensifier (II) based systems which were subsequently replaced, flat-panel-detector (FPD) based systems which were later upgraded with ClarityIQ dose reduction software (Philips Healthcare) and relatively new FPD system already equipped with ClarityIQ...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041743/iatrogenic-venous-air-embolism-from-central-venous-catheterization-after-blunt-liver-trauma
#5
Tarek Debs, Niccolo Petrucciani, Eric Sejor, Imed Ben Amor, Jean Gugenheim
No abstract text is available yet for this article.
December 29, 2016: Surgery
https://www.readbyqxmd.com/read/28035284/transcaval-biopsy-of-a-mediastinal-mass-compressing-the-superior-vena-cava
#6
Anthony Logaraj, Philip Edwards
Imaging-guided percutaneous chest biopsy is a commonly performed procedure and considered the minimally invasive gold standard for histopathological investigation of thoracic masses. Recognized complications include pneumothorax, air embolism, and seeding of the biopsy tract. We describe a novel approach to diagnostic sampling of a mediastinal mass in a critically unwell patient using a transjugular hepatic biopsy needle. Transcaval mediastinal biopsy may represent a safer alternative to percutaneous biopsy of mediastinal masses in critically unwell patients...
March 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28003829/cardiac-arrest-as-a-consequence-of-air-embolism-a-case-report-and-literature-review
#7
Zia Ur Rahman, Ghulam Murtaza, Mohsin Pourmorteza, Wael K El Minaoui, Pooja Sethi, Peyman Mamdouhi, Timir Paul
Air embolism is an infrequent but potentially catastrophic complication. It could be a complication of invasive procedures including surgery, central line placement, positive pressure ventilation, trauma, hemodialysis, pacemaker placement, cardiac ablation, and decompression sickness. Usually, it does not cause any hemodynamic complication. In rare cases, it could lodge in the heart and cause cardiac arrest. We present a case of an 82-year-old white female who underwent computed tomography (CT) guided biopsy of right lung pulmonary nodule...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27994872/air-bubbles-are-released-by-thoracic-endograft-deployment-an-in-vitro-experimental-study
#8
Kamuran Inci, Giasemi Koutouzi, Valery Chernoray, Anders Jeppsson, Håkan Nilsson, Mårten Falkenberg
PURPOSE: Embolic stroke is a dreaded complication of thoracic endovascular aortic repair. The prevailing theory about its cause is that particulate debris from atherosclerotic lesions in the aortic wall are dislodged by endovascular instruments and embolize to the brain. An alternative source of embolism might be air trapped in the endograft delivery system. The aim of this experimental study was to determine whether air is released during deployment of a thoracic endograft. METHODS: In an experimental benchtop study, eight thoracic endografts (five Medtronic Valiant Thoracic and three Gore TAG) were deployed in a water-filled transparent container drained from air...
2016: SAGE Open Medicine
https://www.readbyqxmd.com/read/27994261/use-of-cardiopulmonary-bypass-for-management-of-massive-air-embolism-during-hysteroscopic-metroplasty
#9
Ahmad Ali Amirghofran, Narjes Nick, Mina Amiri, Rahim Hemmati
The patient was a 32-year-old woman who presented with infertility secondary to uterine didelphys. Hysteroscopic metroplasty was chosen as the corrective surgical procedure for this anatomical defect. During the surgical repair, the patient developed a massive air embolism (MAE) leading to hypotension, arrhythmia, and cardiogenic shock. Resuscitation was started by placing the patient in the right-side up position, and emplacement of central venous catheter, but it was unsuccessful. The decision was then made to bypass the patient's cardiopulmonary system to effectively treat the MAE...
December 2016: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/27991422/volumetric-capnography-in-the-exclusion-of-pulmonary-embolism-at-the-emergency-department-a-pilot-study
#10
Timon M Fabius, Michiel M Eijsvogel, Ivo van der Lee, Marjolein G J Brusse-Keizer, Frans H de Jongh
The analysis of the [Formula: see text] in expired air as a function of the exhaled volume (volumetric capnography) might result in a more specific exclusion tool for pulmonary embolism (PE) in addition to the Wells-score and D-dimer. A novel combination of volumetric capnography parameters ([Formula: see text]) should be decreased in PE and could possibly be used to decrease the number of requested computed tomography pulmonary angiograms (CTPA). Volumetric capnography measurements were performed on consecutive patients seen in the emergency department for which, due to suspected PE (due to increased D-dimer level or Wells-score), a CTPA was ordered...
December 17, 2016: Journal of Breath Research
https://www.readbyqxmd.com/read/27987101/systemic-air-embolism-during-pleural-lavage-for-empyema
#11
Masatsugu Ohuchi, Shuhei Inoue, Yoshitomo Ozaki, Keiko Ueda
Pleural lavage has been considered a convenient and safe method that is often performed for empyema. We report a case of systemic air embolism that developed during pleural lavage. A 53-year-old man with empyema in the organizing phase suddenly developed paralysis of the left side of the body and altered level of consciousness during pleural lavage, which was performed in a sitting position without negative pressure suction. Systemic air embolism was diagnosed based on computed tomography. In this case, use of fibrinolytic agents, positioning during pleural lavage, and pressure in an empyema cavity may have predisposed to development of systemic air embolism...
December 16, 2016: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27982770/the-semisitting-position-analysis-of-the-risks-and-surgical-outcomes-in-a-contemporary-series-of-425-adult-patients-undergoing-cranial-surgery
#12
Andrea Saladino, Massimo Lamperti, Antonella Mangraviti, Federico G Legnani, Francesco U Prada, Cecilia Casali, Luigi Caputi, Paola Borrelli, Francesco DiMeco
OBJECTIVE The objective of this study was to analyze the incidence of the primary complications related to positioning or surgery and their impact on neurological outcome in a consecutive series of patients undergoing elective surgery in the semisitting position. METHODS The authors prospectively collected and retrospectively analyzed data from adult patients undergoing elective surgery in the semisitting position for a cranial disease. Patients were managed perioperatively according to a standard institutional protocol, a standardized stepwise positioning, and surgical maneuvers to decrease the risk of venous air embolism (VAE) and other complications...
December 16, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27920858/beware-of-positive-pressure-coronary-artery-air-embolism-following-percutaneous-lung-biopsy
#13
Dmitriy N Kazimirko, William B Beam, Khalid Saleh, Akash M Patel
Patients undergoing percutaneous lung biopsy are at risk of developing a systemic air embolism. Air embolism may manifest as a catastrophic iatrogenic event with ischemic insult to the end organs, with sites of least resistance such as coronary and cerebral circulation the most susceptible. We review the available literature and present a case of iatrogenic air embolism during computed tomography guided percutaenous lung biopsy under general anesthesia. Management, outcome, and periprocedural factors that may have contributed to the complication are discussed...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920857/aortic-air-embolus-following-pulmonary-tumor-radiofrequency-ablation
#14
Roger Stimpson, Suhag Patel, Rohan Shah, Junjian Huang, Sumit Chhadia, Vivek Yedavalli, Mark Saker
Aortic air embolism following a computed tomography (CT) guided percutaneous transthoracic procedure is a rare occurrence, but one that can have dire consequences. We present a case of a 48-year old female diagnosed with aortic air embolism during percutaneous radiofrequency ablation of a pulmonary mass. A large amount of intra-aortic air can be seen on the CT images just before the patient suffered acute cardiac arrest. Although this is a rare occurrence, recognition and management of this complication is important for physicians who perform any percutaneous transthoracic procedures...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920021/venous-and-arterial-air-embolism-a-rare-phenomenon-with-fatal-consequences
#15
Jatan Shah, Nasheena Jiwa, Natasha Mamdani, David Hill
Air embolism is often an iatrogenic complication which may occur in venous or arterial circulation depending on the port of entry. We present two cases in which air embolism occurred in venous and arterial circulation after contrast medium injection (CMI) and coronary artery bypass graft (CABG) surgery, respectively. In one case, accumulation of air bubbles was observed in the pulmonary artery after CMI. This was attributed to inadvertent injection of air owing to improper connection of the injector and the catheter...
December 5, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27907236/suicide-by-intentional-air-embolism
#16
Gábor Simon, Evelin Rácz, Mátyás Mayer, Veronika Heckmann, Dénes Tóth, Zsolt Kozma
Venous air embolism occurs when air enters the venous system. The main causes of venous air embolism include medical procedures, neck and head trauma, and injuries of the genitals. Self-induced suicidal (and intentional) air embolism is extremely rare. The authors report a rare case of a suicidal air embolism committed using a self-made tool composed of a plastic bottle and an infusion set, injecting nearly 2000 mL of air into the cubital vein. The toxicological analysis suggested that midazolam, together with air, was also injected into the circulation using the same bottle and infusion set...
December 1, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27904004/delayed-diagnosis-of-blunt-carotid-trauma-in-a-seat-belt-syndrome-with-associated-abdominal-wall-injury-a-case-report
#17
Savino Occhionorelli, Dario Andreotti, Daniela Tartarini, Lorenzo Cappellari, Rocco Stano, Lucia Morganti, Giorgio Vasquez
: The aim of this case report is to be aware of occult carotid lesions in thoracic- abdominal trauma because, carotid artery injury consequent to blunt trauma is rare, affecting less than 1% of patients as reported in literature. A 45-years-old female, involved in a traffic accident, arrived to Emergency Room hemodynamically stable, with a Glasgow Coma Scale of 15, complaining abdominal pain, without any neurological signs. She underwent Computed Tomography (CT) scan that showed a complete disruption of left abdominal wall muscles, associated with massive bowel loops herniation...
November 28, 2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27899751/air-pollution-is-associated-with-ischemic-stroke-via-cardiogenic-embolism
#18
Jong-Won Chung, Oh Young Bang, Kangmo Ahn, Sang-Soon Park, Tai Hwan Park, Jae Guk Kim, Youngchai Ko, SooJoo Lee, Kyung Bok Lee, Jun Lee, Kyusik Kang, Jong-Moo Park, Yong-Jin Cho, Keun-Sik Hong, Hyun-Wook Nah, Dae-Hyun Kim, Jae-Kwan Cha, Wi-Sun Ryu, Dong-Eog Kim, Joon-Tae Kim, Jay Chol Choi, Mi-Sun Oh, Kyung-Ho Yu, Byung-Chul Lee, Ji Sung Lee, Juneyoung Lee, Hong-Kyun Park, Beom Joon Kim, Moon-Ku Han, Hee-Joon Bae
BACKGROUND AND PURPOSE: The aim of the study was to assessed the impact of short-term exposure to air pollution on ischemic stroke subtype, while focusing on stroke caused via cardioembolism. METHODS: From a nationwide, multicenter, prospective, stroke registry database, 13 535 patients with acute ischemic stroke hospitalized to 12 participating centers were enrolled in this study. Data on the hourly concentrations of particulate matter <10 μm, nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), and carbon monoxide (CO) were collected from 181 nationwide air pollution surveillance stations...
January 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27898601/fontan-fenestration-closure-prior-to-posterior-spinal-fusion-in-patients-with-single-ventricle-heart-disease
#19
Matthew C Schwartz, David Nykanen, Craig Fleishman, Hamish M Munro, Jonathan Phillips, Raymond D Knapp, Donald Felix
STUDY DESIGN: Case series. OBJECTIVE: To describe transcatheter closure of the Fontan fenestration prior to posterior spinal fusion in two children to prevent paradoxical venous air embolism during the operation. SUMMARY OF BACKGROUND DATA: Scoliosis is common among patients with single-ventricle congenital heart disease who have undergone Fontan operation and spinal surgery can offer physiologic benefits. Venous air embolism is a rare, but important reported complication during spinal surgery performed in the prone position...
December 1, 2016: Spine
https://www.readbyqxmd.com/read/27898548/two-cardiac-arrests-because-of-venous-air-embolism-during-endoscopic-retrograde-cholangiopancreatography
#20
Joseph M Sisk, Monica D Choi, Andrew B Casabianca, Ali M Hassan
Venous air embolism is a rare but potentially catastrophic complication of endoscopic retrograde cholangiopancreatography. We report 2 cases of venous air embolism and subsequent cardiac arrests. During resuscitation efforts, a transesophageal echocardiogram was placed, which demonstrated significant air in the right heart. Although gastroenterologists seem to be more aware of this complication, it is underreported in the anesthesiology literature. As anesthesiologists continue to expand coverage to endoscopy suites, anesthesia providers must be aware of predisposing factors and maintain a high index of suspicion to recognize and treat in a timely manner to prevent serious adverse outcomes...
November 28, 2016: A & A Case Reports
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