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Results 201 - 250 of 821
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Kleintjes Wayne George - - 2007
The largest prospective cadaver study done over a 3-year period to investigate the arterial variations of the forehead is presented. The primary goal was to find anatomical support for various forehead flaps previously designed. Thirty cadaver foreheads (60 hemi-foreheads) were dissected from deep to superficial to identify arterial variations. The ...
Bevc Sebastjan - - 2007
The authors analyzed 309 central venous catheters (CVC) inserted in 147 hemodialysis patients before the maturation of the first or new arteriovenous fistula. One clinical manifestations of sepsis after CVC insertion was found. In all, 33.7% of the catheters were removed because of early minor complications: CVC occlusion, inadequate blood ...
Maya Ivan D - - 2007
Central venous stenosis is a frequent complication in hemodialysis patients, which can manifest clinically with ipsilateral upper extremity edema. When symptomatic, it is usually treated by percutaneous transluminal angioplasty. When angioplasty is unsuccessful, stent deployment is a therapeutic option. The goal of the present study was to evaluate the primary ...
Hamilton H C - - 2007
Central venous access (CVA), in which a large bore catheter is routed through a vein in the neck, upper chest or femoral area, is needed to give drugs that cannot be given by mouth or via a conventional cannula in the arm. To establish whether either the jugular, subclavian or ...
Wiebers J - - 2006
Arterial thromboembolism (TE) in the absence of current or recent history of a central catheter is a rare condition in newborn period. We report a case of severe lower extremities arterial TE of unclear etiology in a full-term neonate. By adding hyperbaric oxygenation to thrombolytic and antithrombotic therapy, we achieved ...
Komvilaisak P - - 2006
Frequent infusion of factor concentrates may be challenging in young boys with haemophilia, especially if their disease is complicated by inhibitors. A central venous access device (CVAD) is often placed in young patients in need of repeated infusions for prophylaxis or immune tolerance induction. Although user friendly and capable of ...
Heresi Gustavo A - - 2006
The PAC provides a wealth of information about circulatory and respiratory systems and intravascular fluid volume over time. Specifically, the PAC allows measurement of central venous and pulmonary arterial pressure, pulmonary artery occlusion pressure, mixed venous blood gases, and indicator-dilution cardiac output. Based on these quantitative date, systemic and pulmonary ...
Polanco Patricio M - - 2006
The hemodynamic monitoring of a surgical patient acquires a major relevance in high-risk patients and those suffering from surgical diseases associated with hemodynamic instability, such as hemorrhagic or septic shock. This article reviews the fundamental physiologic principles needed to understand hemodynamic monitoring at the bedside. Monitoring defines stability, instability, and ...
Deogaonkar K - - 2007
Central venous cannulation forms one of the mainstays of management of trauma and haemodynamically unstable patients. Frequently this procedure has to be done as an emergency in the emergency department. Ultrasound guidance has been recommended, especially for use by trainee members of the emergency department. We report a case of ...
Venkatesan T - - 2007
BACKGROUND: We investigated how often blind placement of peripherally inserted central catheters (PICCs) through the antecubital veins results in a correct tip location in relation to carina and evaluated the inter-observer agreement in locating the tip of PICCs in plain radiography with digital imaging. METHODS: In this study, 202 suitable ...
Bader Suzanne G - - 2007
BACKGROUND & AIMS: Central venous catheter occlusion is a frequently occurring complication during home parenteral nutrition (HPN). The aim of the study was to investigate the effectiveness of sodium hydroxide (NaOH) administration to clear an occluded central venous catheter especially in HPN. METHOD: Retrospective study to the use of NaOH ...
Tsang John Y C - - 2007
We studied the roles of endothelins in determining ventilation (Va) and perfusion (Q) mismatch in a porcine model of acute pulmonary thromboembolism (APTE), using a nonspecific endothelin antagonist, tezosentan. Nine anesthetized piglets (approximately 23 kg) received autologous clots (approximately 20 g) via a central venous catheter at time = 0 ...
Guo Hangyuan - - 2006
A case of a lost guide wire extending from the vena cava to the back of the neck after central venous catheterization is presented. A trainee inserted a central venous catheter via the left subclavian vein in a 40-year-old male patient after surgery, but did not notice that a guide ...
Hudson Timothy L - - 2006
BACKGROUND: Except for intravenous therapy, arterial access is the most common invasive procedure performed on critically ill patients. Arterial puncture is a source of pain and discomfort. Intradermal injection of lidocaine around the puncture site decreases the incidence and severity of localized pain when used before arterial puncture. OBJECTIVE: To ...
Karnabatidis Dimitris - - 2006
PURPOSE: To describe a safe percutaneous method of transauricular endovascular access in small and large animals that uses basic catheter-based interventional skills and renders surgery and general anesthesia with intubation unnecessary. MATERIALS AND METHODS: Twenty New Zealand White rabbits and five domestic juvenile swine were used in the experiments. Animals ...
Shiver Stephen - - 2006
BACKGROUND: Arterial cannulation for continuous blood-pressure measurement and frequent arterial-blood sampling commonly are required in critically ill patients. OBJECTIVES: To compare ultrasound (US)-guided versus traditional palpation placement of arterial lines for time to placement, number of attempts, sites used, and complications. METHODS: This was a prospective, randomized interventional study at ...
Hughes Duncan B - - 2006
Catheter-related central venous thrombosis is a complication seen with long-term indwelling central venous catheters. The uses of total parenteral nutrition, catheter location, and duration of catheter use have been shown to increase the risk of thrombus formation. However, organized calcification of such a thrombus is a rare occurrence and, to ...
Helttula Ilmo - - 2006
BACKGROUND: Patients undergoing intramedullary nailing of long bone fractures have pathologically altered pulmonary vascular tone, right heart strain, and transient impairment of pulmonary gas exchange. The purpose of this study was to examine the acute differences in cardiopulmonary variables between reamed and unreamed nailing techniques in 18 (9 + 9) ...
Lanza Cecilia - - 2006
BACKGROUND: After the insertion of a central venous catheter, a chest radiograph is usually obtained to ensure correct positioning of the catheter tip. OBJECTIVE: To determine in a paediatric population whether B-mode and colour Doppler sonography after central venous access is useful to evaluate catheter position, thus obviating the need ...
Jeon Yunseok - - 2006
PURPOSE: To facilitate electrocardiography (ECG)-guided central venous catheter placement by observing the shape and size of the P wave at specific locations of a central venous catheter (CVC) tip. METHODS: We evaluated 54 patients for whom central venous catheterization was planned as part of routine care for their elective surgery. ...
Lin Ching-Hwung - - 2006
We report on the case of a 60-year-old man who suffered from hiccup, dysphagia and unsteady gait for three months. He was diagnosed with intracranial dural arteriovenous fistula in medulla with retrograde perimedullary vein drainage. He developed quadriplegia, persistent shock status and symptomatic bradycardia immediately after a conventional cerebral angiography ...
Tran Hoang S - - 2006
Peripherally inserted central venous catheter (PICC) lines have become a frequently used method of intravenous access for long-term administration of antibiotics, chemotherapy, and parenteral nutrition. Catheter-related complications involving the arterial tree are rare. We report a case of a 25-year-old woman with a history of difficult PICC line placement that ...
Heye Sam - - 2006
PURPOSE: To determine prospectively the diagnostic performance of CO(2) venography, by using conventional venography with iodinated contrast material as the reference standard, for the preoperative evaluation of upper-limb and central veins before creation of fistulas for hemodialysis access. MATERIALS AND METHODS: The study was approved by the institutional review board, ...
Lim C L - - 2006
The right internal jugular vein (IJV) is a common vessel to obtain venous access. It is important to have a clear understanding of the anatomy of the IJV and its relationship to the common carotid arteries (CCA) to avoid inadvertent arterial puncture. This study aims to objectively evaluate the variations ...
Middleton P - - 2006
OBJECTIVE: This study aimed to determine the extent of agreement between central venous and arterial values for pH, bicarbonate, base excess, and lactate in a group of intensive care unit (ICU) patients. METHODS: A prospective study of a convenience sample of patients deemed by their treating doctor to require blood ...
Williams Joanne - - 2006
Cocaine is the most powerful central nervous stimulant found in nature. All forms of cocaine cause tachycardia and vasoconstriction. A smokable, rapidly reacting form of cocaine base, "crack," is highly addictive. Smoking crack introduces a high concentration of cocaine into the bloodstream, rendering it especially dangerous. We report a case ...
Boyd Alex - - 2006
The primary objectives of this study were to evaluate the effect of varying heparin concentrations on International Normalized Ratio values and to assess the accuracy of these values deter mined through the arterial line of the dialysis circuit Twenty-two patients on hemodialysis with central venous catheters were studied After a ...
Wu E T - - 2006
A 5-month-old boy with hypoplastic left heart syndrome developed chylothorax and oedema of the left upper arm more than 2 months after recovering from a Norwood stage II operation. Venography showed occlusion of the innominate vein with abundant collaterals crossing the midline to join the right internal jugular vein. The ...
Keser Selçuk - - 2006
PURPOSE: The anatomic localization of the popliteal artery in the mediolateral plane at the level of the joint line was investigated on axial knee magnetic resonance imaging (MRI) scans to study anatomic variations. METHODS: The transverse and central axes were described on axial MRI scans of 334 knees. The distance ...
Goodrich Cindy - - 2006
Traditionally, bedside evaluation of tissue oxygenation has been accomplished by assessing mixed venous oxygen saturation (SvO2) using a fiberoptic pulmonary artery catheter. It may not always be feasible to place a pulmonary artery catheter early in resuscitation or outside of the ICU. Introduction of continuous central venous oxygen saturation (ScvO2) ...
Bailey Peter L - - 2006
We simulated needle paths based on the central landmark used for central venous catheterization of the internal jugular vein. We obtained ultrasound images to quantify the landmark's accuracy (precision and bias) in 107 subjects placed in Trendelenburg position with their heads turned 30-35 degrees. We also determined the frequency of ...
Kopriva David - - 2006
Central venous thrombosis presents a challenge to the treatment of hemodialysis patients requiring vascular access. We present the case of a patient with renal failure and virulent thrombophilia causing severe central venous thrombosis. We discuss the use of a hemodialysis shunt from the right axillary artery to the right atrium ...
Charvát J - - 2006
Evaluation of suitability and safety of venous port implantation with catheter insertion via the right internal jugular vein in oncology patients. One hundred one totally implantable venous ports were placed in 100 patients with malignancies from January 1, 2003 until March 31, 2005. Catheter of venous port was preferably inserted ...
Chaitowitz I - - 2006
Imaging-guided insertion of central venous catheters, either in the form of a peripherally inserted central catheter (PICC) or through a subclavian or a jugular approach, is becoming the preferred method of acquiring long-term venous access for a variety of therapeutic purposes. The most significant complication from central venous catheters is ...
Di Iorio B R - - 2006
The ideal dialysis access ensures adequate blood flow for dialysis, has a long life, and is associated with a low complication rate. Although no current type of access fulfills all these criteria, the native arteriovenous fistula (AVF) is close to doing so. Unfortunately, various kinds of vascular access (VA) are ...
Arogundade F A - - 2006
AIMS AND OBJECTIVES: To highlight the indications, problems and prospects of bedside non-surgically inserted jugular and subclavian dual lumen catheters. PATIENTS AND METHODS: Renal failure patients being managed in our centre with indications for central catheterisation were consecutively recruited at presentation. They had bedside non-surgical jugular and subclavian insertion of ...
Botha R - - 2006
Central venous catheterization (CVC) entails the catheterization of the superior vena cava via either the subclavian or the internal jugular vein (IJV). This study looked at the frequency in which a needle was inserted into the IJV using the anterior CVC approach, which entails inserting the needle into the apex ...
Ferguson E A - - 2006
A pregnant woman with severe hypertrophic cardiomyopathy was monitored with transthoracic echocardiography to guide management of fluids and vasopressors during elective caesarean section. After insertion of intravenous, arterial and central venous cannulae, a transthoracic echocardiogram was performed noting left ventricular cavity size and contractility, systolic anterior motion of the mitral ...
MacTaggart Jason N - - 2006
An acrylic cement pulmonary embolus is a rare complication of percutaneous vertebroplasty. Many patients remain completely asymptomatic, but others may present with chest discomfort, dyspnea, and even cardiovascular collapse leading to death. Here we present an asymptomatic patient initially thought to have a central venous catheter pulmonary artery embolus based ...
Fujita Yoshihito - - 2006
We describe a case of inadvertent intrathecal cannulation with a central venous catheter in an infant, confirmed by three-dimensional computed tomography, which clearly demonstrated the track of the catheter. We believe that this complication could have been related to two major factors: depth of needle insertion and penetration of the ...
Brown P W G - - 2006
There is increasing evidence that routine preoperative duplex scanning ultrasound cannot only increase the utilisation of native AVF for dialysis access but also allow proper selection of a target vessel with adequate luminal diameter to improve outcome. A minimum arterial diameter of 2mm is associated with successful fistula formation. A ...
Giacomini M - - 2006
Pneumothorax is one of the most frequent complications during percutaneous central vascular cannulation. When choosing a site for central vascular access, the internal jugular vein is preferable to other vessels, for the lower frequency of related complications, including pneumothorax. This review intends to summarize the current state of the art ...
Ansari Muhammad Jaffer - - 2006
Frequent use of central venous cannulations and dialysis catheters has led to increased complications like venous thrombosis and catheter-related sepsis. Superior vena cava subclavian obstruction secondary to extensive thrombosis of the central veins and internal jugular veins is presented. The risk factors, diagnostic modalities, and treatment options are discussed.
Kunihara Takashi - - 2006
PURPOSE: The early increase in serum S100beta after cardiopulmonary bypass (CPB) seems to be derived from an extracerebral source. To exclude contamination, we investigated the arterio-jugular differences in S100beta levels in patients receiving selective cerebral perfusion (SCP). We also evaluated the brain-protective effect of SCP by comparing the arterial S100beta ...
Granata A - - 2006
Cannulation of central veins and placement of catheters for temporary haemodialysis is a common procedure in the management of patients with end stage renal failure. The internal jugular vein is the site of choice for central venous catheter placement, being associated with the lowest complication rate. This procedure can be ...
Abbas M, Hamilton M, ...
Central venous catheters are the mainstay in the intensive management of surgical patients today and they have increasingly been applied in different medical specialties and for different clinical indications. It is generally safe to place central venous catheters using anatomic landmarks alone, but there are some possible immediate, early, and ...
Ohara Shinichiro - - 2006
There have been few reports on immune complex-mediated glomerulonephritis associated with chronic infection from long-term central venous catheterization in adulthood. We report here on a 13-year-old boy with nephritis who exhibited glomerulonephritis that had been induced by the long-term use of central venous catheters, and its resolution after extraction of ...
Smartt Sherrie - - 2005
Pulmonary artery catheter (PAC) technology has changed significantly and use has decreased over the last 20 years. Barriers to use include: (a) increased patient risk with placement; (b) ability to measure similar variables via less invasive measures; (c) increased cost; (d) inaccurate measurement leading to misuse of PAC-derived variables; (e) ...
Kellenberger Christian J - - 2005
PURPOSE: To describe the normal flow patterns in peripheral pulmonary vessels with phase-contrast (PC) magnetic resonance imaging (MRI). MATERIALS AND METHODS: Twelve healthy adults (age = 33 +/- 7 years) underwent cine PC MRI of the segmental and central pulmonary arteries and veins by means of a breath-held segmented k-space ...
Cook T M - - 2005
We have compared the performance of the single use laryngeal airway devices Softseal and LMA-Unique in a randomised comparative trial in anaesthetised healthy patients who did not receive neuromuscular blockade. Primary outcome was success of airway placement. Secondary outcomes included manipulations and complications during use, ease of insertion, airway and ...
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