Search Results
Results 151 - 200 of 826
1 2 3 4 5 6 7 8 9 10 >
Robin Emmanuel - - 2006
The usefulness of parameters measured using the pulmonary artery catheter has been challenged because no benefit in patient outcome has been observed in clinical trials. However, technological advances have been made, including continuous measurement of cardiac output (CO), mixed venous saturation (SvO2), and right ventricle end-diastolic volume (CEDV) have been ...
Agrawal Dharmendra - - 2006
OBJECTIVES: We report a case of massive air embolism in the cardiopulmonary bypass (CPB) circuit to highlight the principle of its immediate management and its preventive measures. METHODS: The air embolism was caused by the accidental connection of carbon dioxide (CO(2)) supply to the monitoring arm of the retrograde cardioplegia ...
Xenellis John - - 2005
BACKGROUND: Pulsatile tinnitus is frequently attributed to identifiable and treatable causes, in contrast to the more common subjective non-pulsatile tinnitus. It usually originates from vascular structures as a result of either increased blood flow or lumen stenosis; atherosclerotic carotid or subclavian artery disease; arterial, venous, or arteriovenous malformations, fistulas, or ...
Puri G D - - 2005
BACKGROUND AND OBJECTIVE: We studied the effect of different recumbent positions (supine, left and right lateral decubitus), on arterial oxygenation in 42 valvular heart disease patients planned for cardiac surgery. All patients had cardiomegaly (cardiothoracic ratio > or = 0.5) in their chest X-rays. Their left ventricular end-diastolic diameter was ...
Perthel M - - 2005
The intention of minimal extracorporeal circulation (MECC) is to reduce priming volume and minimize contact of blood with polymers and air in a closed system. In contrast to conventional extracorporeal circulation (ECC), a venous reservoir is missing. Thus, air trapping is limited and avoidance of bubble embolism is a major ...
Fortrat Jacques-Olivier - - 2005
Recently, it has been suspected that venous dural sinus air embolisms could occur as a result of scalp vein infusion. The possible mechanism for this complication has not been documented to date, and procedures to avoid venous dural sinus air embolism have not been presented. We report a preterm neonate ...
Walsh V P - - 2005
CASE HISTORY: Death occurred in a 1.25 kg, 9-month-old female Pomeranian dog undergoing anaesthesia for surgical repair of partially healed fractures of the radius and ulna. CLINICAL FINDINGS: Following sedation, anaesthesia was induced using thiopentone and maintained with halothane in oxygen. An acute decrease in the dog's end-tidal carbon dioxide ...
Dedouit Fabrice - - 2006
A 30-year-old man was admitted with chest trauma after a road traffic accident. The patient was paraplegic and suffered from transient monoparesia of the left arm. The chest X-ray revealed a severe right tension pneumothorax and thoracic spine fractures. Emergency right thoracic drainage was carried out followed by angiography. Unfortunately ...
Yang C W - - 2005
Microscopic cerebral arterial air embolism (CAAE) has been described in many patients undergoing cardiac surgery as well as other invasive diagnostic and therapeutic procedures. However, massive CAAE is rare. We report a 42-year-old woman who initially presented with thalamic and basal ganglia hemorrhages. Shortly after a radial arterial catheter was ...
Gabor Sabine Elisabeth - - 2005
A 21-year-old female with chronic membranoproliferative nephritis was admitted for suspected esophageal disruption and asthma after severe, prolonged vomiting. At the time of admission she presented with dyspnea, tachypnea, arterial hypotension and tachycardia. Physical examination showed discrete signs of ectopic air at the neck and distended cervical veins. CT-scan of ...
Campen Matthew J - - 2005
Air pollution is positively associated with increased daily incidence of myocardial infarction and cardiovascular mortality. We hypothesize that air pollutants, primarily vapor phase organic compounds, cause an enhancement of coronary vascular constriction. Such events may predispose susceptible individuals to anginal symptoms and/or exacerbation of infarction. To develop this hypothesis, we ...
Wong A Y C - - 2005
A 49-year-old male with neurofibromatosis type II was scheduled for posterior fossa craniotomy and excision of a right acoustic neuroma and placement of an auditory brainstem implant in the sitting position. Intra-operatively, the patient was monitored with transoesophageal echocardiography which detected two major episodes of venous air embolism. Despite immediate ...
Villacorta J - - 2005
A 46-year-old woman was monitored by bispectral index monitoring (BIS) during redo aortic and mitral valve replacement. On release of the aortic cross clamp there was a sudden, severe, unexplained, and sustained fall in the BIS value. Postoperatively, a CT scan was consistent with multiple ischaemic lesions. The lesions were ...
Kim J Y - - 2005
BACKGROUND: The effect of haemodynamic derangement during coronary artery anastomosis in off-pump coronary artery bypass surgery on cerebral blood flow has not been elucidated. Jugular bulb oxygen saturation is a useful indicator of cerebral blood flow provided that the cerebral metabolic rate is constant. This study was designed to evaluate ...
Wei Wei - - 2005
In this study, we investigated the feasibility and the accuracy of transtracheal mixed venous oxygen saturation (Svo(2)) monitoring. Ten patients undergoing thoracic surgery were included in this study. A single-use pediatric pulse oximetry sensor was attached to the double-lumen tube between the tracheal and bronchial cuff. After anesthesia was induced, ...
O'Connor Patrick M - - 2005
Birds are unique among living vertebrates in possessing pneumaticity of the postcranial skeleton, with invasion of bone by the pulmonary air-sac system. The avian respiratory system includes high-compliance air sacs that ventilate a dorsally fixed, non-expanding parabronchial lung. Caudally positioned abdominal and thoracic air sacs are critical components of the ...
Sato Koichi - - 2005
Percutaneous pulmonary marking under computed tomography (CT) guidance is often used to identify the location of small nodules prior to pulmonary wedge resection by video assisted thoracoscopic surgery. Although pneumothorax and pulmonary hemorrhage are known complications that accompany this method, arterial air embolism is an extremely rare and occasionally fatal ...
Doshi Hari Krishna - - 2005
OBJECTIVES: We report a case of a bronchovenous fistula in an adult who could not be resuscitated following a mitral valve replacement. METHODS: A 39-year-old man underwent a mitral valve replacement for severe mitral stenosis and regurgitation. Following uneventful valve replacement surgery, and while attempting to wean the patient off ...
Myers Gerard J - - 2005
The use of arterial line filters has long been a standard of practice in the field of cardiopulmonary bypass. Sorin Biomedica has designed an adult hollow-fiber oxygenator that not only incorporates their Mimesys biomimicry coating technology but also has a 40-micron arterial filter as an integrated component of this unique ...
Riquelme Miriam - - 2005
OBJECTIVE: To evaluate the effects on oxygen delivery (DO2) of 2.5 and 5 cm H2O of positive end-expiratory pressure (PEEP) applied to the dependent lung during one-lung ventilation (OLV) in anesthetized dogs with a closed thoracic cavity. ANIMALS: 7 clinically normal adult Walker Hound dogs. PROCEDURE: Dogs were anesthetized, and ...
Domaingue C M - - 2005
Neurosurgery in the sitting position offers advantages for certain operations. However, the approach is associated with potential complications, in particular venous air embolism. As the venous pressure at wound level is usually negative, air can be entrained. This air may follow any of four pathways. Most commonly it passes through ...
Yousem Samuel A - - 2005
This report details the pulmonary pathologic findings in four patients with rheumatoid arthritis, who developed new onset of pulmonary signs and symptoms with alveolar infiltrates temporally related to the institution of etanercept therapy. Biopsy findings showed an interstitial and air space lymphohistiocytic infiltrate with non-necrotizing granulomas, in the setting of ...
Hwang Shiuh-Lin - - 2005
We report a case of massive intracerebral air embolism after cardiopulmonary resuscitation in a patient with a fatal head injury. There was no pneumothorax or extravascular pneumocephalus, however, air was found in the internal carotid artery. Massive cerebral air embolism may occur after entrance of air into the circulatory system ...
Ninomiya Hiroyoshi - - 2005
The terminal airways and microvasculature of five adult Baird's beaked whales (Berardius bairdii) lungs have been examined by means of light and scanning electron microscopy of corrosion casts. The respiratory system of the Baird's beaked whale has various anatomical features which allow them to attain great depths and remain submerged ...
Abiru H - - 2005
The purpose of this paper was to study the frequency of visualization and characteristics of normal thoracic structures on posteroanterior (PA) chest radiographs in Japanese population. 1000 consecutive normal PA chest radiographs of men and women ranging in age from 20 years to 90 years were reviewed. Frequency of visualization ...
Akerø A - - 2005
The aim of the study was to investigate hypoxaemia in chronic obstructive pulmonary disease patients during a commercial flight. The effect of a commercial flight, lasting 5 h 40 min, on arterial blood gas levels and symptoms in 18 chronic obstructive pulmonary disease patients with a pre-flight percutaneous oxygen saturation ...
Stolz Alan J - - 2005
OBJECTIVE: To predict risk factors of a prolonged air leak following pulmonary lobectomy. METHODS: From January 2003 to March 2004, 134 patients (95 male, mean age 66+/-7.7 years) underwent pulmonary lobectomy for lung tumor. Prolonged air leak (PAL) was defined as an air leak lasting 7 days or more of ...
Jonas Richard A - - 2005
This article reviews the mechanisms of brain injury associated with cardiopulmonary bypass. These include embolic injury of both a gaseous and particulate nature as well as global hypoxic ischemic injury. Ischemic injury can result from problems associated with venous drainage or with arterial inflow including a steal secondary to systemic ...
Carrodeguas Lester - - 2005
Methemoglobinemia leads to rapid oxygen desaturation, requiring prompt recognition and treatment. We present two severely obese patients who developed methemoglobinemia following the use of topical or local anesthetic. This complication was detected by analysis of arterial blood gases, and was successfully treated with methylene blue i.v. and 100% O2 supplementation.
Arguedas Miguel R - - 2005
BACKGROUND AND AIMS: Heme oxygenase (HO) catalyzes hemoglobin into bilirubin, iron, and carbon monoxide (CO), a known vasodilator. HO expression and CO production as measured by blood carboxyhemoglobin (COHb) levels increase in experimental hepatopulmonary syndrome (HPS) and contribute to vasodilatation. Whether CO contributes to HPS in humans is unknown. Our ...
Bradbury L A - - 2005
A horse which had had a caecal impaction for 10 days was treated by means of an ileocolostomy [corrected] but failed to respond satisfactorily. Before a second laparotomy was performed it was observed to have dislodged the extension set from a jugular catheter and air was heard being sucked into ...
Nygaard, Espen Brigt Hope
Background: Lung injury in acute respiratory distress syndrome (ARDS) is characterized by increased permeability of the alveolar-capillary membrane, diffuse alveolar damage, and the accumulation of proteinacenous pulmonary edema. In several studies prone positioning has been shown to improve oxygenation in pasient with ARDS, due to reduced V/Q-shunting, increased functional recidual ...
Wimpress S - - 2005
Arterialized earlobe capillary blood samples (ELCS) have been used as a measurement of blood gas status for over 20 years. There is general acceptance that there is a strong correlation and limits of agreement between arterial and arterialized blood samples with respect to pH and PaCO2. Although the correlation between ...
Seedhouse Erik Leon Olav - - 2005
OBJECTIVE: To compare altitude responses of 2 ultraendurance athletes and 2 nonathletes during a 2-week expedition on Denali (Mount McKinley). METHODS: The severity of acute mountain sickness (AMS) symptoms (Lake Louise AMS guidelines) and pulmonary function parameters (forced vital capacity, forced expiratory volume in 1 second, peak expiratory flow) as ...
Mansour Asem - - 2005
CT-guided needle biopsy is a common procedure for obtaining a tissue diagnosis and consequently correctly managing patients. This procedure has many potential complications, ranging from simple pneumothorax or self-limiting hemoptysis to life-threatening pulmonary hemorrhage and air embolism. Though the latter is a rare complication of CT-guided needle biopsy, it has ...
Cruz-Flores Salvador - - 2005
INTRODUCTION: Cerebral air embolism is a neurological emergency. It has been reported following cardiac catheterization, central venous catheter insertion, and cardiothoracic surgery. METHODS AND RESULTS: We report a case of massive cerebral air embolism secondary to intra-aortic balloon pump (IABP) rupture. Computed tomography (CT) of the brain showed serpiginous hypodensities ...
Sen I - - 2005
In this study, a multi-channel analog data acquisition and processing device with the additional feature of detecting adventitious sounds has been designed and implemented. The overall system consists of fourteen microphones attached on the backside, an airflow measuring unit, a fifteen-channel amplifier and filter unit connected to a personal computer ...
Chhajed Prashant N - - 2004
PURPOSE OF REVIEW: Arterial blood gas analysis is the 'gold standard' method to measure the arterial partial pressure of carbon dioxide (PaCO2). However, arterial sampling including arterial catheterization is invasive and expensive. Cutaneous carbon dioxide tension (PcCO2) measurement is used as a noninvasive surrogate measure of PaCO2, which is used ...
Alper Fatih - - 2004
Cerebral air embolism may be caused by iatrogenic or post-traumatic introduction of air into arterial or venous systems. It is usually revealed by computerized tomography. In this paper, we report a case with thorax trauma and loss of consciousness, in whom cerebral massive air embolism was detected and its distribution ...
Bendszus Martin - - 2004
BACKGROUND: Intra-arterial cerebral angiography is associated with a low risk for neurological complications, but clinically silent ischemic events after angiography have been seen in a substantial number of patients. METHODS AND RESULTS: In a prospective study, diffusion-weighted magnetic resonance imaging (DW-MRI) before and after intra-arterial cerebral angiography and transcranial Doppler ...
Singh Surinder - - 2004
During cardiopulmonary resuscitation, oxygen extension tubing was mistakenly connected into the tracheal tube connector. As a result, the patient recovering from hypovolemic cardiac arrest died because of pulmonary barotrauma. Similar cases have been reported. We suggest that a worldwide equipment performance standard be developed to prevent future occurrences and describe ...
Sun Wei-Zen - - 2004
For decades, water-mill murmur, decrease in end-tidal CO(2) (Petco(2)), hypotension, and hypoxemia have been accepted as diagnostic criteria for gas embolism. In this case report, a 19-yr-old male patient developed a sudden reduction in Petco(2) and profound circulatory collapse 15 min after intramedullary irrigation with H(2)O(2). However, arterial oxygen desaturation ...
Murphy Glenn S - - 2004
BACKGROUND: Rapid flushing of radial artery catheters may result in retrograde embolization of air into the cerebral circulation. This study examined the incidence of central air embolization during and after flushing of an arterial pressure monitoring system. METHODS: One hundred adult patients undergoing cardiac surgical procedures were enrolled in this ...
Cheshire William P - - 2004
Headache occasionally occurs during or after scuba diving. Although its significance often is benign, headache may signal a serious neurological disorder in some circumstances. In addition to the usual causes of headache, the diagnostic evaluation should consider otic and paranasal sinus barotrauma, arterial gas embolism, decompression sickness, carbon dioxide retention, ...
Harris R Scott - - 2004
OBJECTIVE: To test the hypothesis that the ratio of diffusing capacity of the lung for nitric oxide (DLno) to diffusing capacity of the lung for carbon monoxide (DLco) would be affected by occlusion of a fraction of the pulmonary vascular bed. DESIGN: Interventional physiologic study. SETTING: Animal laboratory of a ...
Siraneci Rengin - - 2004
Chickenpox is a common infectious disease of the pediatric age group with rare complications such as hemorrhagic varicella and arterial thrombotic purpura. Medical support is the mainstay of treatment in such cases but for the rescue of necrotic tissues, hyperbaric oxygen (HBO) therapy should be applied in addition to anticoagulant ...
Stewart Randolph H - - 2004
OBJECTIVE: An increase in pulmonary lymph flow and lymph protein clearance following pulmonary air embolization has been interpreted as evidence of increased pulmonary microvascular permeability. The authors hypothesized that air embolization does not alter the pulmonary microvascular permeability to protein and that this could be demonstrated by determining the effect ...
Sarantopoulos S - - 2004
An otherwise well ten-week-old girl underwent an air contrast hip arthrogram and application of a hip spica for a developmentally dislocated hip. The child displayed signs consistent with venous air embolism after injection of 5 ml of air into the hip joint. These signs included a decrease in arterial haemoglobin ...
Chakravarti Rajesh - - 2004
A 63-year-old man with left upper zone haziness on chest X-ray and an infiltrative lesion with a pleural mass in the left upper lobe on CT scan was scheduled for CT-guided percutaneous trans-thoracic needle biopsy. During the procedure, the patient had massive haemoptysis and cardiorespiratory arrest and could not be ...
Turgeman Yoav - - 2004
We present a case of a massive pulmonary air embolism during permanent pacemaker lead implantation under mild sedation in a 73-year-old woman. We used a peel-away sheath that is devoid of a hemostatic valve. The air embolism occurred after deep inspiration associated with loud snoring sounds and resolved after short ...
1 2 3 4 5 6 7 8 9 10 >