Search Results
Results 551 - 600 of 828
< 7 8 9 10 11 12 13 14 15 16 17 >
Sing R F - - 1995
Venous air embolism is an infrequent, but potentially disastrous, occurrence after the insertion or removal of central venous catheters. The authors describe fatal venous air embolism after removal of a central venous catheter in a 43-year-old man recovering from coronary artery bypass surgery. They discuss the pathophysiology, diagnosis, treatment, and ...
Lee R - - 1995
The placement of left atrial catheters following cardiopulmonary bypass (CPB) allows accurate monitoring of left ventricular filling pressures, as well as access for the infusion of vasoactive drugs. While the left atrial administration of norepinephrine (NE) is thought to provide higher systemic arterial NE levels while minimizing any pulmonary vasoconstriction, ...
Ikeda S - - 1995
We report herein the case of a 2-year-old girl with short bowel syndrome who developed chest pain 2 weeks after a totally implantable central venous access catheter had been surgically placed to facilitate total parenteral nutrition. A lateral chest X-ray and contrast flow study subsequently revealed that the catheter tip ...
Dionisio P - - 1995
Mismanagement in the placement of central venous catheter (CVC) may occur in up to 20% of cases. The catheter can be inadvertently placed in the contralateral brachiocephalic vein, the ipsi or contralateral internal jugular vein, and usually a thoracic radiograph is necessary to evaluate its location. We propose a technique ...
Martinez-Tallo E - - 1995
We present three preterm infants with pulmonary complications due to central venous silicone catheters malpositioned in the left or right pulmonary artery. One infant developed an arterial-bronchial fistula. The other two infants had pneumonitis without evidence of vessel perforation. The course of these complications was good after the catheter was ...
Iwasaki H - - 1994
The purpose of this study was to determine the onset times of vecuronium neuromuscular block administered into either the central circulation or a peripheral vein. One hundred and twenty adult patients with a pulmonary artery (PA) catheter were randomly divided into one of three groups with respect to the routes ...
Madan M - - 1994
Central venous catheters used for chemotherapy are usually sited so that the catheter tip lies in the superior vena cava. This study evaluated right atrial electrocardiography as a method of accurately placing the catheter tip in 34 patients over a period of 22 months. An electrocardiograph adaptor was connected to ...
Criado E - - 1994
To evaluate the impact of central venous obstruction on upper extremity hemodialysis access failure, we retrospectively analyzed our recent experience in managing this problem. We reviewed 158 upper extremity hemodialysis access procedures performed in 122 patients during a 1-year period. Fourteen (11.5%) patients had central vein obstruction as the cause ...
Dollery C M - - 1994
Although the use of silicone catheters for long-term central venous access is widespread, little is known about the incidence of pulmonary thromboembolic complications. We studied clinical events, lung perfusion scans, and echocardiographic screens in 34 children and adolescents with gut failure who had received cyclical parenteral nutrition for 2 months ...
Jaime-Solis E - - 1994
Central venous catheterization in pediatric patients has, among other risks, flebitis and thrombosis, and finally occlusion of the superior and inferior venae cavae, making long-term catheterization and multiple venous cutdown more difficult. Use of the internal mammary vein might be an alternative procedure to provide sure and easy access to ...
Vucevic M - - 1994
Central venous access is an essential part of patient management in many clinical settings. Traditionally this has been achieved by a blind, external landmark guided technique which may not correlate exactly with the location of the vessel. We have prospectively evaluated the SMART needle, a new Doppler ultrasound guided vascular ...
Ruble K - - 1994
Central line thrombus is a well recognized complication of long-term venous access devices. Oncology nurses are key players in the recognition and treatment of central line thrombus. An understanding of the mechanisms and interrelated variables in the formation of thrombus, as well as knowledge of treatment alternatives is essential for ...
Pippus K G - - 1994
Authors of recent publications advocate central venous access by saphenous vein cutdown in the thigh. Even relatively inert SILASTIC catheters are recognized to convey a risk of large vein thrombosis when maintained for long periods. Thrombosis of the inferior vena cava (IVC) and tributaries place the patient at risk for ...
Sizun J - - 1994
OBJECTIVE: To determine the incidence of Malassezia furfur-related colonization and infection of central venous catheters. DESIGN: Prospective clinical study. SETTING: A paediatric intensive care unit at a University Hospital. PATIENTS: 66 newborns with central venous catheters for parenteral nutrition including lipid emulsions (Intralipid). METHODS: When a central venous catheter was ...
Fan P Y - - 1994
Dual lumen central venous hemodialysis catheters have become the preferred form of acute of acute vascular access. Although they provide rapid angioaccess, these catheters are associated with a number of serious insertion complications. Furthermore, prolonged use can lead to late complications including infection and central venous stenosis. Recent advances in ...
Chan R K - - 1994
OBJECTIVES: To illustrate the use of transoesophageal echocardiography in the detection of the morphological features of central pulmonary artery thromboemboli and their clinical implications. DESIGN: Review of five cases of central pulmonary artery thromboemboli detected by transoesophageal echocardiography. SETTING: University teaching hospital. PATIENTS: Five patients (three men and two women) ...
Cook L B - - 1994
The introduction of balloon-tipped pulmonary artery flotation catheters revolutionised monitoring of the cardiovascular system and the management of seriously ill patients. Advances in design allow direct measurement of cardiac output and continuous mixed venous oxygen saturation, while intracardiac electrocardiogram monitoring and passage of pacing wires is now possible. The technique ...
Quiney N F - - 1994
A previously fit 39-yr-old man was admitted with clinical findings suggestive of septicaemic shock. After routine insertion of a central venous catheter he developed electromechanical dissociation. Prolonged efforts to resuscitate the patient were unsuccessful. Post mortem examination showed a cyst arising from the tricuspid valve annulus which had prolapsed into ...
Ho C M - - 1994
We report a case of bilateral hydrothorax secondary to perforation of the superior vena caval wall, which was caused by a double-lumen central venous catheter used for catheterization of the left jugular vein. A patient undergoing craniectomy developed a right pleural effusion followed by a left hydrothorax 12 hours after ...
Ergün S - - 1994
There is a close correlation between the angioarchitecture of the human testis and its inner subdivision into testicular lobules. Serial sections from paraffin and epon-embedded testicular tissue were used to examine the angioarchitecture of the human testis, and computer-aided 3-D-reconstruction was used to demonstrate the correlation between blood vessels and ...
Birdwell B G - - 1994
Pseudotumor cerebri is frequently the only clinical clue to the presence of cerebral venous thrombosis, a potentially devastating condition. We report a case of pseudotumor cerebri associated with thrombosed dural venous sinuses caused by propagation of a catheter-related subclavian vein thrombus. The findings and clinical course in this case alert ...
Raad I I II Department of Medical Specialities, University of Texas M. D. Anderson Cancer Center, Houston - - 1994
To assess the frequency of thrombotic and infectious complications of long-term use of vascular catheters in cancer patients and to determine whether the two types of complication are related. Case series. A 500-bed tertiary cancer center. Seventy-two cancer patients. During a 16-month period, postmortem examinations of catheterized veins and contralateral ...
Grishaber J E - - 1994
Adequate venous access is an essential component of therapeutic plasma exchange (TPEX). The simplest kind of venous access is venipuncture of antecubital veins, but this technique may be limited by venous size or scarring following the procedure, requiring the placement of a specialized vascular access device (VAD). VADs provide reliable ...
Atkinson J B - - 1994
In pediatric patients, central line implantation via the subclavian vein can be complicated by the presence of a kink in the peel-away sheath. A technique is described, which has been used on 62 occasions to overcome this problem. Reinserting the catheter through the kinked peel-away sheath in concert with a ...
Hatabu H - - 1994
PURPOSE: To assess the diagnostic value of magnetic resonance (MR) imaging with SPAMM (spatial modulation of magnetization) in the identification of chronic central pulmonary thromboemboli. MATERIALS AND METHODS: Twelve patients with pulmonary hypertension and five healthy volunteers were prospectively studied with a 1.5-T MR imaging system. The SPAMM technique was ...
Gallichio M H - - 1994
The cephalic vein within the deltopectoral groove provides adequate access to the central venous system for the PermCath hemodialysis catheter. Unlike EJV techniques, which are successful in few instances, the cephalic vein approach was successful in approximately 75 percent of instances. In addition, the rate of complications secondary to bleeding ...
Johansen K - - 1994
While the optimal vascular conduit for hemodialysis is undeniably an arterialized autogenous subcutaneous vein, only a minority of end-stage renal disease patients can count on such access: the remainder require implantation of a biomaterial conduit. This paper will briefly survey current biografts used for hemodialysis access, with an emphasis on ...
Trigaux J P - - 1994
We review the radiologic findings of normal positioning, malpositioning, and complications related to the more commonly used thoracic venous catheters. These include central venous catheters, long-term central venous access catheters, and pulmonary artery catheters. The radiologist plays an important role in the early recognition of the complications of these catheters. ...
Imaizumi T - - 1994
In vagotomized and anesthetized rabbits, aortic pressure (AP), aortic depressor nerve activity (ANA), and renal sympathetic nerve activity (RNA) were simultaneously measured while perturbing AP randomly. To quantitatively characterize the role of the arterial baroreflex system in generating RNA, we determined the transfer function (TF) of the central baroreflex arc ...
Laxson C J - - 1994
How much blood must be discarded from a heparinized arterial line to obtain accurate coagulation studies, specifically activated partial thromboplastin time? The published literature provides insight into the question and guidelines for practice in adult critical care. This article reviews and integrates findings from 14 research studies published from 1971 ...
Fullerton D A - - 1993
Cardiac surgical patients frequently require catecholamines, typically administered via the central venous circulation. Potential disadvantages of this route of administration include catecholamine metabolism by the pulmonary vascular bed before gaining access to the heart and pulmonary vasoconstriction producing increased pulmonary vascular resistance. We therefore prospectively compared administration of epinephrine via ...
Sherer D M - - 1993
Invasive hemodynamic monitoring has become an integral part of intensive care management. Whereas the pulmonary artery catheter is the mainstay for determination of the hemodynamic profile and differentiation between cardiogenic and noncardiogenic forms of pulmonary edema, immediate central venous access in itself is of importance in rapid volume replacement in ...
Mailloux R J - - 1993
Although much has been written concerning the complications of long-term total parenteral nutrition, little or no mention of pulmonary embolism is made in the literature. We present two patients maintained on home total parenteral nutrition who suffered pulmonary emboli, one while receiving standard heparin therapy. No potential source other than ...
Singleton R J - - 1993
There were 65 incidents involving access to the vascular system amongst the first 2000 reported to the Australian Incident Monitoring Study. Thirty-three involved peripheral venous access (14 cases of extravascular extravasation, 8 of unintended arterial cannulation, 6 of disruptions to intravenous lines, and 5 of problems with infusion lines, taps, ...
Linton R A - - 1993
We describe a new indicator dilution method of measuring cardiac output in man. A bolus injection of lithium chloride 0.6 mmol was given via a central venous catheter and arterial plasma [Li+] recorded using a specially developed sensor incorporating an Li(+)-selective electrode. Cardiac output was derived from the lithium dilution ...
Morimoto T - - 1993
Two girls with acute lymphocytic leukemia (ALL) are reported. There were difficulties in removing their central venous catheters inserted from a peripheral vein. One girl required surgery under general anesthesia for the removal. The other patient received continuous infusion of low dose urokinase from a distal peripheral vein. The residual ...
Denny D F DF - - 1993
Recent developments in long-term central venous access devices, access techniques, and the management of complications are described. Factors used in selecting a device include the intensity and frequency of therapy and the preferences of the patient. Implantable ports and external catheters are available with valved (Groshong) and nonvalved catheters and ...
McGee W T - - 1993
OBJECTIVES: a) To define the frequency of dangerous (intracardiac) central venous catheter placement in a multicenter study of large community hospital intensive care units (ICUs) and to evaluate physician responses to this finding. b) To validate right atrial electrocardiography as a technique to assure adherence with recent Food and Drug ...
Kelly R F - - 1993
Thrombosis of central veins has become more prevalent because of increased use of long-term central venous catheterization. Candida superinfection of the thrombus can occur particularly in patients on long-term antibiotic therapy and on parenteral nutrition. Removal of the catheter, thrombolytic therapy, anticoagulation, and antifungal therapy with amphotericin B will usually ...
Pomerantz S M - - 1993
In an acute trauma patient with unrecognized scimitar syndrome, physiologic measurements used in patient management decisions were misleading due to the anatomic and physiologic anomalies of the syndrome. Pulmonary artery catheter measurements believed to reflect left atrial pressures were actually measuring central venous pressures because the catheter was terminating in ...
Flatley M E - - 1993
A case of hydropneumomediastinum and bilateral hydropneumothorax from a central venous catheter is described. The complication is related to the position of the catheter after placement through the left internal jugular vein. Proper placement of a central venous line into the superior vena cava is essential to avoid this serious ...
Polos P G - - 1993
Malpositioning of a central venous catheter can cause potentially life-threatening complications. Knowledge of thoracic anatomy and close attention to proper insertion technique increase the likelihood of, but do not ensure, proper placement. Selection of a right-sided venous entry site reduces the risk of malpositioning. The return of nonpulsatile, dark-colored blood ...
Rodenhuis S - - 1993
OBJECTIVE: Major thromboses can occur in the venous system in association with central venous catheters. This usually necessitates removal of the catheter. METHODS: The effectiveness of low dose recombinant tissue type plasminogen activator (rt-PA) in combination with heparin was assessed in patients with central venous catheter associated thrombosis. RESULTS: In ...
Burbidge S J - - 1993
PURPOSE: The upper extremity veins of 17 patients who underwent operative central venous catheter placement were studied prospectively with color duplex sonography to determine which duplex changes, if any, could be due to the presence of the catheter alone and to determine if these waveform changes could mimic the dampened ...
- - 1993
The effects of acute exposure to methylene chloride (dichloromethane) are due to its central nervous system depressant properties, which have resulted in fatalities. Manifestations of acute exposure include mental confusion, fatigue, lethargy, headache and chest pain. Metabolic conversion of methylene chloride to carbon monoxide may place persons with preexisting coronary ...
Waggoner S E - - 1993
Individuals with cancer frequently require long-term central venous access to deliver chemotherapy, blood products, and other fluids. A rare, but potentially lethal complication associated with central venous catheterization is venous air embolism which occurs most commonly after damage or disconnection at the catheter hub. The Groshong (Bard Access Systems, UT) ...
Robinson D L - - 1993
A new 10F peel-away sheath with a preformed curve is now available. The procedure for insertion of central venous catheters remains the same, with the new curved sheath replacing the straight version. In our experience, this modification facilitates the placement of central venous catheters and decreases the incidence of catheter ...
Shimada M - - 1993
A safe and simple technique for exchanging central venous catheters is herein described. Our technique is based on a modification of Seldinger's method, in which a new outer sheath is introduced over the previous catheter as a guidewire in order to simplify the exchange of central venous catheters. This technique ...
Karnik R - - 1993
Venous thrombosis is a very common complication of central venous catheters inserted via the jugular or subclavian vein. The aim of this prospective study is to test the suitability of duplex sonography in detecting thrombi in the internal jugular vein after catheter removal and to analyze the number and extent ...
Heinemann M K - - 1993
In tetralogy of Fallot with absent pulmonary valve syndrome, aneurysmal enlargement of the central pulmonary arteries can be associated with severe bronchial stenosis and respiratory distress in the neonatal period. The ventilatory status of these patients must be stabilized before diagnostic and therapeutic interventions can be performed. This report describes ...
< 7 8 9 10 11 12 13 14 15 16 17 >