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Venous air embolism

Marta Crous-Bou, Laura B Harrington, Christopher Kabrhel
Venous thromboembolism (VTE) includes deep vein thrombosis and pulmonary embolism, and a combination of environmental and genetic risk factors contributes to VTE risk. Within environmental risk factors, some are provoking (e.g., cancer, surgery, trauma or fracture, immobilization, pregnancy and the postpartum period, long-distance travel, hospitalization, catheterization, and acute infection) and others are nonprovoking (e.g., age, sex, race/ethnicity, body mass index and obesity, oral contraceptive or hormone therapy use, corticosteroid use, statin use, diet, physical activity, sedentary time, and air pollution)...
October 20, 2016: Seminars in Thrombosis and Hemostasis
J Abram, J Klocker, N Innerhofer-Pompernigg, M Mittermayr, M C Freund, N Gravenstein, V Wenzel
Injuries to blood vessels near the heart can quickly become life-threatening and include arterial injuries during central venous puncture, which can lead to hemorrhagic shock. We report 6 patients in whom injury to the subclavian artery and vein led to life-threatening complications. Central venous catheters are associated with a multitude of risks, such as venous thrombosis, air embolism, systemic or local infections, paresthesia, hemothorax, pneumothorax, and cervical hematoma, which are not always immediately discernible...
October 5, 2016: Der Anaesthesist
Richard C Prielipp, Megan L Lanigan, David J Birnbach
No abstract text is available yet for this article.
October 1, 2016: American Journal of Ophthalmology
Rashmi Mishra, Pavithra Reddy, Misbahuddin Khaja
Cerebral air embolism (CAE) is an infrequently reported complication of routine medical procedures. We present two cases of CAE. The first patient was a 55-year-old male presenting with vomiting and loss of consciousness one day after his hemodialysis session. Physical exam was significant for hypotension and hypoxia with no focal neurologic deficits. Computed tomography (CT) scan of head showed gas in cerebral venous circulation. The patient did not undergo any procedures prior to presentation, and his last hemodialysis session was uneventful...
2016: Case Reports in Critical Care
David R Santiago-Dieppa, Arvin R Wali, Brandon C Gabel, Alexander A Khalessi, Hoi Sang U, John C Drummond
Venous air embolism is a devastating and potentially life-threatening complication that can occur during neurosurgical procedures. We report the development and use of the "inter-mammary sticky roll," a technique to reliably secure a precordial Doppler ultrasonic probe to the chest wall during neurosurgical cases that require lateral decubitus positioning. We have found that this noninvasive technique is safe, and effectively facilitates a constant Doppler signal with no additional risk to the patient.
2016: Curēus
Betül Basaran, Ahmet Basaran, Betül Kozanhan, Sadık Özmen, Mustafa Basaran
We report a case of venous air embolism during abdominal myomectomy. Although true incidence of venous air embolism is not known, in literature most of reported cases are belongs to sitting position craniotomies. Many of those are subclinical, and diagnostic methods have varying degrees of sensitivity and specificity. At time of suspicion, prevention of any subsequent air emboli is the cornerstone of treatment.
September 2016: Brazilian Journal of Anesthesiology
Dafney L Davare, Zishan Chaudry, Rafael Sanchez, Seong K Lee, Chauniqua Kiffin, Andrew A Rosenthal, Eddy H Carrillo
Venous air embolus (VAE) occurs when gas, specifically atmospheric air, enters into the vascular system. Although rare, they can be fatal due to risk of cardiovascular collapse. In this report, we present a unique case of a 66-year-old female trauma patient with an inferior vena cava air embolism. An overview of the potential cause is presented, along with a review of the management of VAE.
2016: Journal of Surgical Case Reports
Bernd Stegmayr
During preparation of the hemodialysis (HD) extracorporeal circuit (ECC) a priming solution is used to remove air from the tubes and dialyzer. Ultra sound techniques have verified micro embolic signals (MES) in the ECC that may derive from clots or gas embolies. In vitro studies could clarify that embolies of air develop within the ECC and also pass the safety systems such as air traps and enter the venous line that goes into the patient. Clinical studies have confirmed the presence of MES within the ECC that pass into the return-venous-line during conventional HD without inducing an alarm...
August 30, 2016: Hemodialysis International
Pranee Rushatamukayanunt, Patchanon Seanho, Saipin Muangman, Manee Raksakietisak
BACKGROUND: Posterior cranial fossa surgery is commonly performed under sitting and horizontal position in our institution. Venous air embolism is a potentially serious complication of neurosurgery especially in the sitting position. OBJECTIVE: We aim to compare the incidence of severe venous air embolism and other complications of both positions. MATERIAL AND METHOD: A retrospective analysis of medical record was performed in 192 patients undergoing posterior cranial fossa craniotomy from January 2010 to December 2013...
May 2016: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
Frank Born, Nawid Khaladj, Maximilian Pichlmaier, René Schramm, Christian Hagl, Sabina P W Guenther
BACKGROUND: Air embolism is a potentially fatal but underrecognized complication in Extracorporeal Life Support (ECLS). Oxygenators containing venous air traps have been developed to minimize the risk of air embolism in daily care. OBJECTIVE: We reproduced air embolism as occurring via a central venous catheter in an experimental setting to test the potential of oxygenators with and without venous bubble trap (VBT) to withhold air. METHODS: An in vitro ECLS-circuit was created and a central venous catheter with a 3-way stopcock and a perforated male luer cap was inserted into the inflow line...
July 29, 2016: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Benjamin T Himes, Grant W Mallory, Arnoley S Abcejo, Jeffrey Pasternak, John L D Atkinson, Fredric B Meyer, W Richard Marsh, Michael J Link, Michelle J Clarke, William Perkins, Jamie J Van Gompel
OBJECTIVE Historically, performing neurosurgery with the patient in the sitting position offered advantages such as improved visualization and gravity-assisted retraction. However, this position fell out of favor at many centers due to the perceived risk of venous air embolism (VAE) and other position-related complications. Some neurosurgical centers continue to perform sitting-position cases in select patients, often using modern monitoring techniques that may improve procedural safety. Therefore, this paper reports the risks associated with neurosurgical procedures performed in the sitting position in a modern series...
August 5, 2016: Journal of Neurosurgery
Wayne E Cascio
The paper proposes a pathophysiologic framework to explain the well-established epidemiological association between exposure to ambient air particle pollution and premature cardiovascular mortality, and offers insights into public health solutions that extend beyond regulatory environmental protections to actions that can be taken by individuals, public health officials, healthcare professionals, city and regional planners, local and state governmental officials and all those who possess the capacity to improve cardiovascular health within the population...
December 2016: Biochimica et Biophysica Acta
Aurora S Cruz, Marc Moisi, Jeni Page, R Shane Tubbs, David Paulson, Michael Zwillman, Rod Oskouian, Arthur Lam, David W Newell
Venous air embolism (VAE) is a known neurosurgical complication classically and most frequently occurring in patients undergoing posterior cranial fossa or cervical spine surgery in a sitting or semi-sitting position. The authors present a case of VAE that occurred during posterior cervical spine surgery in a patient in the prone position, a rare intraoperative complication. The patient was a 65-year-old man who was undergoing a C1-2 fusion for a nonunion of a Type II dens fracture and developed a VAE. While VAE in the prone position is uncommon, it is a neurosurgical complication that may have significant clinical implications both intraoperatively and postoperatively...
July 22, 2016: Journal of Neurosurgery. Spine
Stephen Sandwell, Kristopher T Kimmell, Howard J Silberstein, Thomas G Rodenhouse, Paul K Maurer, Webster H Pilcher, Kevin A Walter
INTRODUCTION: The sitting cervical position affords advantages over prone positioning for elective posterior cervical decompression and fusion. A potential disadvantage is the risk for venous air embolism. METHODS: We retrospectively identified all adult elective posterior cervical surgeries at our institution between 2009 and January 2014. Using International Classification of Diseases, Ninth Revision coding, we searched for incidences of air embolism, myocardial infarction, pulmonary embolism, and deep vein thrombosis...
August 2016: Neurosurgery
A G M Aya, B Ondze, J Ripart, P Cuvillon
The occurrence of seizures in the peripartum period is a rare but particularly challenging situation. Seizures in the peripartum period could result from three categories of conditions: first and most frequent is the exacerbation of a known pre-existing seizure disorder, mainly epilepsy. A therapeutic evaluation is needed; second is the new onset of seizures due to a non-pregnancy-related problem. An accurate diagnosis and a specific treatment are required; third is range of pregnancy-related conditions. The present review focuses on this third category, with a special attention to disorders occurring in the peripartum period...
October 2016: Anaesthesia, Critical Care & Pain Medicine
Alexandra-Maria Warenits, Fritz Sterz, Andreas Schober, Florian Ettl, Ingrid Anna Maria Magnet, Sandra Högler, Ursula Teubenbacher, Daniel Grassmann, Michael Wagner, Andreas Janata, Wolfgang Weihs
Extracorporeal life support is a promising concept for selected patients in refractory cardiogenic shock and for advanced life support of persistent ventricular fibrillation cardiac arrest. Animal models of ventricular fibrillation cardiac arrest could help to investigate new treatment strategies for successful resuscitation. Associated procedural pitfalls in establishing a rat model of extracorporeal life support resuscitation need to be replaced, refined, reduced and reported.Anesthetized male Sprague-Dawley rats (350-600 g), (n = 126), underwent cardiac arrest induced with a pacing catheter placed into the right ventricle via a jugular cannula...
July 7, 2016: Shock
Glen T Granati, Getu Teressa
BACKGROUND Patent foramen ovale (PFO) are common, normally resulting in a left-to-right shunt or no net shunting. Pulmonary embolism (PE) can cause sustained increased pulmonary vascular resistance (PVR) and right atrial pressure. Increasing positive end-expiratory pressure (PEEP) improves oxygenation at the expense of increasing intrathoracic pressures (ITP). Airway pressure release ventilation (APRV) decreases shunt fraction, improves ventilation/perfusion (V/Q) matching, increases cardiac output, and decreases right atrial pressure by facilitating low airway pressure...
2016: American Journal of Case Reports
J DeLay
Autopsy of animals that die in the perianesthetic period allows identification of anesthetic and surgical complications as well as preexisting disease conditions that may have contributed to mortality. In most studies to date investigating perianesthetic mortality in animals, inclusion of autopsy data is very limited. This retrospective study evaluated autopsy findings in 221 cases of perianesthetic death submitted to a veterinary diagnostic laboratory from primary care and referral hospitals. Canine (n = 105; 48%) and feline (n = 90; 41%) cases predominated in the study, involving elective (71%) and emergency (19%) procedures...
September 2016: Veterinary Pathology
Wojciech S Pietrzyk
BACKGROUND: Long air travel is a risk factor for deep venous thrombosis (DVT). The aim of the study was to report the occurrence of symptomatic DVT cases in cruise ship passengers after long haul flights and to discuss applied diagnostic methods. MATERIALS AND METHODS: A retrospective analysis of medical records of adult patients diagnosed with DVT in medical facility of the passenger ship was performed. On the basis of clinical examinations, B-mode ultrasound scans of the lower extremity venous systems, international normalised ratio (INR) tests, working diagnoses of DVT were established...
2016: International Maritime Health
Steven Gayer, Howard D Palte, Thomas A Albini, Harry W Flynn, Ricardo Martinez-Ruiz, Nelson Salas, Andrew J McClellan, Nidhi Relhan, Jean-Marie Parel
PURPOSE: Venous air embolism (VAE) during pars plana vitrectomy (PPV) can occur due to improper positioning of the infusion cannula in the suprachoroidal space and may lead to sudden compromise of cardiac circulation and death. In vivo demonstration of fatal VAE during PPV showing air can travel from the suprachoroidal space into the central circulation. DESIGN: Experimental in vivo surgical study on porcine eyes. METHOD: Experimental PPV under general anesthesia was performed on porcine eyes (Yorkshire species) at a University Surgical Training & Education Center...
June 24, 2016: American Journal of Ophthalmology
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