Search Results
Results 51 - 100 of 826
1 2 3 4 5 6 7 8 9 10 >
Lenters Virissa - - 2010
BACKGROUND: Long-term exposure to ambient air pollution has recently been linked to atherosclerosis and cardiovascular events. There are, however, very limited data in healthy young people. We examined the association between air pollutants and indicators of vascular damage in a cohort of young adults. METHODS: We used data from the ...
Kariya Shuji - - 2010
A 65-year-old man developed respiratory distress during insertion of a central venous catheter (CVC). The presence of gas in the pulmonary trunk and ascending aorta was observed on computed tomography (CT) scans performed immediately after insertion, and paradoxical air embolism (PAE) was diagnosed. There were no symptoms of cerebral or ...
Yarham Gemma - - 2010
The presence of emboli was recognised relatively early in the history of open heart surgery. The emboli produced during cardiopulmonary bypass have the predisposition to distribute into, and ultimately obstruct, microvessels of all tissues. The Sorin Group has recently developed a new range of arterial line filters. Before the Sorin ...
Thiara A S - - 2010
The neonate cardiopulmonary bypass (CPB) circuit, including a KIDS D100 oxygenator (The Sorin Group, Mirandola, Italy) and a D130 arterial filter (The Sorin Group), was evaluated in vitro with respect to the removal of free micro gas bubbles. No gas bubbles > 40microm were measured after the arterial filter D130 ...
Paarmann Hauke - - 2010
Mixed venous oxygen saturation (SvO(2)) is an accepted surrogate parameter for the ratio between oxygen delivery and demand and may thus be used to determine the adequacy of the function of the cardiopulmonary system. Cerebral oxygen saturation monitoring by near infrared spectroscopy is a non-invasive method for the determination of ...
Milsom W K - - 2010
Respiratory chemoreceptors responsive to changes in CO(2)/H(+) appear to be present in all vertebrates from fish to birds and mammals. They appear to have arisen first in the periphery sensitive to the external environment. Thus, in most fish CO(2)/H(+) chemoreceptors reside primarily in the gills and respond to changes in ...
Tyssebotn Ingvald M - - 2010
RATIONALE: Earlier work has shown that experimental conditions calling for improved tissue oxygenation could be assisted by i.v. infusion of a dodecafluoropentane emulsion (DDFPe) forming oxygen-transporting microbubbles. OBJECTIVES: The present work investigated the effect of DDFPe on hypoxia due to experimental shunts in the pig lung. METHODS: Nineteen O(2) breathing, ...
Cheng H-M - - 2010
CT-guided transthoracic lung biopsy is becoming a widely accepted procedure for the diagnosis of pulmonary lesions. The rate of severe complications following such a procedure has been reported. Of these complications, air embolism is the most likely to be fatal. We report a case of right coronary air embolism resulting ...
Forsberg Ulf - - 2010
BACKGROUND: Chronic haemodialysis (HD) may relieve some medical problems of terminal uraemia, but the life expectancy of patients is still significantly shortened, and there is a greatly increased morbidity. This includes pulmonary morbidity and chronic central nervous system (CNS) abnormalities. Previous studies have shown that a considerable amount of air ...
Salameh Johnny - - 2010
OBJECTIVE: Air embolism to the cerebral artery circulation is a rare complication previously associated with surgery, scuba-diving, induced abortion, angiography, and pneumothorax. However, air embolism secondary to a ruptured air bulla during commercial air travel has rarely been reported. METHODS: We report a patient who became unconsciousness 30 minutes after ...
Fahlman Asa - - 2010
This study assessed whether arterial oxygenation could be increased by treatment with intranasal oxygen supplementation in brown bears (Ursus arctos) with hypoxemia during anesthesia with medetomidine-zolazepam-tiletamine. Arterial blood samples were collected anaerobically from the femoral artery before and during oxygen supplementation. An oxygen flow rate of 2-5 L/min administered intranasally ...
Rettenmund Christy - - 2010
Pulmonary carcinoma was diagnosed in an 18+-year-old captive female great horned owl (Bubo virginianus). The owl presented with a history of progressive weakness and sudden onset of frank blood in the droppings. On physical examination, the owl had multiple white to yellow plaques in the oral cavity, decreased air sac ...
O'Connor T M - - 2011
Arterial blood gases (ABGs) are often sampled incorrectly, leading to a 'mixed' or venous sample. Delays in analysis and air contamination are common. We measured the effects of these errors in patients with chronic obstructive pulmonary disease (COPD) exacerbations and controls. Arterial and venous samples were analyzed from 30 patients ...
Fang Hsiu-Yu - - 2010
A 68-year-old man was admitted with intermittent chest tightness. Coronary angiography revealed subtotal occlusion of right coronary artery (RCA). After successful stenting from middle to proximal RCA with two Cypher stents, angiography showed a "Rolling filling defect" at distal aneurysmal dilatation of RCA. Intravascular ultrasound (IVUS) confirmed the "Rolling filling ...
Pant Deepanjali - - 2010
Significant venous air embolism may develop acutely during the perioperative period due to a number of causes such as during head and neck surgery, spinal surgery, improper central venous and haemodialysis catheter handling, etc. The current trend of using self collapsible intravenous (IV) infusion bags instead of the conventional glass ...
Preston Thomas J - - 2009
The use of an arterial line filter (ALF) within the pediatric cardiopulmonary bypass (CPB) circuit is not a new concept. It has always presented the perfusionist with a circuit component that while valuable, increased prime volume. The purpose of this study was to evaluate the change in prime volume and ...
Zanobetti Antonella - - 2010
Ambient particulate pollution and traffic have been linked to myocardial infarction and cardiac death risk. Possible mechanisms include autonomic cardiac dysfunction. In a repeated-measures study of 46 patients 43-75 years of age, we investigated associations of central-site ambient particulate pollution, including black carbon (BC) (a marker for regional and local ...
Chakravarthy Murali - - 2010
OBJECTIVE(S): Partial pressure of carbon dioxide and oxygen were transcutaneously measured in adults after off-pump coronary artery bypass (OPCAB) surgery. The clinical use of such measurements and interchangeability with arterial blood gas measurements for weaning patients from postoperative mechanical ventilation were assessed. DESIGN: This was a prospective observational study. SETTING: ...
Shaikh Nissar - - 2009
Vascular air embolism (VAE) is known since early nineteenth century. It is the entrainment of air or gas from operative field or other communications into the venous or arterial vasculature. Exact incidence of VAE is difficult to estimate. High risk surgeries for VAE are sitting position and posterior fossa neurosurgeries, ...
Brockmeyer Joel - - 2009
Cerebral air embolism occurs very seldom as a complication of central venous catheterization. We report a 57-year-old female with cerebral air embolism secondary to removal of a central venous catheter (CVC). The patient was treated with supportive measures and recovered well with minimal long-term injury. The prevention of air embolism ...
Bisceglia Michele - - 2009
Hepatic portal venous air embolism is the rarest complication of gastrointestinal endoscopy, resulting from penetration of gas into the portal veins, and may occur during endoscopic retrograde cholangiopancreatography and endoscopic biliary sphincterotomy. The likely mechanism is intramural dissection of insufflated air into the portal venous system through duodenal vein radicles ...
Shoaib Raja Farhat - - 2009
It is an unusual case of bilateral tension pneumothoraces developing in the postoperative period in a patient who underwent total arterial revascularization for two vessel coronary artery disease. The patient had been a previous heavy smoker and at operation had been noted to have thin walled lung parenchyma with multiple ...
Kotake Yoshifumi - - 2009
BACKGROUND: We hypothesized that mixed venous hemoglobin oxygen saturation (SvO2) can be estimated by calculation from CO2 production, cardiac output, and arterial oxygen saturation measured using a noninvasive cardiac output (NICO) monitor (Novametrix-Respironics, Wallingford, CT). METHODS: Twenty-three patients undergoing aortic aneurysm repair underwent SvO2 monitoring using a pulmonary artery catheter ...
Schäfer S T - - 2009
Using intra-cardiac echocardiography in anaesthetised swine we tested the hypotheses that embolised air (i) passes immediately through the right atrium into the ventricle; (ii) persists in the right ventricle for a long time; (iii) is detectable for longer within the right ventricle or main pulmonary artery than the right atrium, ...
Kathirgamanathan A - - 2009
BACKGROUND: Existing indices of pulmonary oxygenation vary misleadingly with external factors such as inspired oxygen fraction (FI(O2)), arterial carbon dioxide tension (PaCO2), and haemoglobin (Hb). Previous work suggested that some indices may be acceptably useful in particular scenarios such as acute respiratory distress syndrome (ARDS) or where FI(O2)>60%. However, it ...
Kutlu Ramazan - - 2009
A 44-year-old man with an abdominal aortic aneurysm presented with acute pancreatitis with abundant peripancreatic fluid and was successfully treated with endovascular stent graft. Early post-procedural radiological examinations showed air inside the aneurysm sac. Due to the possible infection from pancreatitis, antibiotic treatment was initiated, and he was closely monitored. ...
Van Natta Timothy L - - 2009
BACKGROUND: In both urban and military settings, penetrating thoracic injuries remain a significant source of trauma-related mortality, and many patients require resuscitative thoracotomy. Existing literature emphasizes relief of pericardial tamponade and aortic clamp application as the key therapeutic maneuvers. The purpose of this report is to revisit pulmonary hilar clamping ...
Valdez-Lowe Claudia - - 2009
Pulse oximetry, a straightforward method for estimating arterial oxygen saturation, can detect hypoxemia early; it's used often and in a variety of settings. But what's not always clear is how frequently-or even whether-patients should be monitored, and unless guidelines are understood and followed, pulse oximetry can be misused or overused. ...
Saito Katsuya - - 2009
A 66-year-old man developed tension pneumocephalus after failed lumbar drainage before clipping surgery for a ruptured anterior communicating artery aneurysm. After puncture with a Tuohy needle, the spinal catheter could not be inserted into the spinal dura, so surgery proceeded without the catheter placement. The patient's neurological status deteriorated suddenly ...
Weaver Lindell K - - 2009
Divers and hyperbaric chamber attendants breathe hyperbaric air routinely. Hyperbaric oxygen (HBO(2)) is used therapeutically frequently. Although much is understood about the hemodynamic physiology and gas exchange effects during hyperbaric air and HBO(2) exposure, arterial and pulmonary arterial (PA) catheter data, including blood gas values during hyperbaric air and HBO(2) ...
Singh Harsimran - - 2009
There is a definitive risk of venous air embolism when the fluid infusion is complete and the drip set is still open in a glass bottle.We have devised a novel way of preventing the chances of air embolism when the fluid in the glass bottle finishes. It really gives a ...
Sturesson L W - - 2009
BACKGROUND: The use of volatile anaesthetics has increased in situations where conventional anaesthetic machines are inadequate or unavailable, for example, cardiac surgery and intensive care. The disposable anaesthetic conserving device, AnaConDa, allows vaporization of liquid volatile anaesthetics from a syringe pump and rebreathing of exhaled anaesthetic. Clinical use requires understanding ...
Hutchings A C - - 2009
The details are presented of the first published case of a tension pneumothorax induced by an automatic compression-decompression (ACD) device during cardiac arrest. An elderly patient collapsed with back pain and, on arrival of the crew, was in pulseless electrical activity (PEA) arrest. He was promptly intubated and correct placement ...
Caruso Settimo - - 2010
Traumatic thoracic injuries and related complications have a mortality of 15.5-25%. We present a case of a 30-year-old with blunt thoracic trauma, massive edema of the lung, and laceration of the middle lobe, associated with air around the pulmonary vein, evaluated with multidetector computed tomography. To the best of our ...
Rees S E - - 2009
The aim of the present study was to evaluate a method for calculating arterial values of pH, carbon dioxide tension (P(CO(2))) and oxygen tension (P(O(2))) from peripheral venous values. In total, 40 patients were studied. Arterial and peripheral venous blood were sampled at a department of respiratory diseases. Arterial values ...
Seeburger Joerg - - 2009
A 50-year-old woman who underwent double-lung transplantation suffered a massive cerebral air embolism with severe neurological impairment and temporary hemodynamic deterioration after surveillance bronchoscopy and central line removal. We hypothesize that this was due to microscopic pulmonary parenchymal injury during bronchoscopy as well as air entrainment during removal of the ...
Granel Brigitte - - 2009
The present report concerns the first case of a spontaneous arterial coronary dissection in adult onset homocystinuria leading to a premature myocardial infarct. The patient had also presented an unexplained lower limb venous thrombosis at the age of 41. A carotid artery thrombosis was found at the aged of 61 ...
Leslie-Mazwi T M - - 2009
BACKGROUND: Cerebral arterial gas embolism is a potentially life-threatening event. Intraarterial air can occlude blood flow directly or cause thrombosis. Sclerotherapy is an extremely rare cause of cerebral arterial gas embolism. METHOD: Case-report. RESULTS: A 38-year-old female suffered acute onset of a left middle cerebral artery (LMCA) syndrome with an ...
Lundbäck Magnus M Department of Respiratory Medicine and Allergy, University Hospital, Umeå, Sweden. - - 2009
Exposure to air pollution is associated with increased cardiovascular morbidity, although the underlying mechanisms are unclear. Vascular dysfunction reduces arterial compliance and increases central arterial pressure and left ventricular after-load. We determined the effect of diesel exhaust exposure on arterial compliance using a validated non-invasive measure of arterial stiffness. In ...
Sammut Mark Adrian - - 2008
Air embolism in the coronary arteries is a known complication of coronary angiography. Diving is a non-iatrogenic cause of arterial air embolism, commonly presenting with neurological and musculoskeletal symptoms. This is the first known case of coronary air embolism confirmed on coronary angiography in a diver presenting with pulmonary edema ...
Kuralay Erkan - - 2009
In OPCAB (off-pump coronary artery bypass) operations, development of cardiac arrest during the distal anastomosis to obtuse marginal coronary artery leads to significantly low blood pressure in the ascending aorta. Therefore, blowing of compressed air in high flow on not-slinged coronary artery may cause air mobilization from the coronary artery ...
Hladik Anne - - 2008
Pulse oximetry normally provides a reliable indicator of arterial blood oxygen saturation. Individuals with a variant hemoglobin with low oxygen affinity would exhibit pulse oximetry values consistent with hypoxemia despite maintaining adequate oxygen delivery to tissues. We describe a patient we diagnosed with hemoglobin Rothschild and his mother. He presented ...
Kim Chang Seok - - 2008
Venous air embolism (VAE) is the entrapment of air or medical gases into the venous system causing symptoms and signs of pulmonary vessel obstruction. The incidence of VAE during cesarean delivery ranges from 10 to 97% depending on surgical position or diagnostic tools, with a potential for life-threatening events. We ...
Nakahara Hiromichi - - 2009
Pulmonary functions such as rapid adsorption, respreading, and hysteresis behavior of pulmonary surfactants are very important for respiratory movement. The interfacial behavior of pulmonary preparations containing an amphiphilic peptide (Hel 13-5) has recently investigated. An orientation of hydrophobic chains in a dipalmitoylphosphatidylcholine (DPPC) with or without palmitic acid (PA) is ...
Platz Elke - - 2011
This is a case report of a 53-year-old woman who presented to the Emergency Department after sustaining a tangential gunshot wound to the left anterior chest wall. On arrival, the patient was somnolent, hypotensive, hypoxic, and had impaired speech. The patient's cardiopulmonary status stabilized quickly after fluid resuscitation and supplemental ...
Korkmaz Askin Ali - - 2008
Gaseous emboli caused by the blower-mister result in air locks within coronary vessels. We describe the case of a coronary air embolism caused by a blower-mister device on off-pump surgery. The tip of the device unexpectedly entered the coronary artery through arteriotomy and caused the air emboli. Air locks in ...
Leelarasamee Amorn - - 2008
An 82-year-old male Bangkokian with hypertension, diabetes mellitus, end-stage renal disease, and coronary artery disease for many years, was hospitalized due to deterioration of a 3-day influenza-like-illness with one-day chest oppression and respiratory failure. At the emergency room, oxygen saturation was 79% on room air Chest X-ray revealed bilateral diffuse ...
Scruggs Jesse E - - 2008
The use of the central venous catheter may be complicated by air embolism when central venous pressure is subatmospheric and the catheter is open to the surrounding air. Paradoxical air embolus occurs when the gas bubbles are able to traverse a right to left shunt, gaining access to the systemic ...
Reisner Andrew - - 2008
The photoplethysmogram is a noninvasive circulatory signal related to the pulsatile volume of blood in tissue and is displayed by many pulse oximeters and bedside monitors, along with the computed arterial oxygen saturation. The photoplethysmogram is similar in appearance to an arterial blood pressure waveform. Because the former is noninvasive ...
Erasmus David B - - 2008
Fatal systemic air embolism (SAE) related to positive pressure ventilation is a rare complication. Case reports in the pediatric literature usually relate to complications in ventilating neonates and are more common. We describe what we believe to be the first such case in an adult ventilated with a high-frequency oscillating ...
1 2 3 4 5 6 7 8 9 10 >