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Catheter Technique (catheter + technique)
Selected AbstractsAdolescent Foley Catheter Technique for Visualizing Hymenal Injuries in Adolescent Sexual AssaultACADEMIC EMERGENCY MEDICINE, Issue 9 2003Jeffrey S. Jones MD Abstract Objectives: To determine the usefulness of the Foley catheter balloon technique for visualizing injuries of the estrogenized hymen in adolescent sexual assault victims compared with supine labial traction. Methods: A prospective clinical trial of 20 adolescent (age 13,16 years old) victims of sexual assault evaluated at a free-standing Nurse Examiner Clinic was conducted over a four-month study period. The clinic, affiliated with an emergency medicine residency program, is staffed by registered nurses who have been specially trained to perform medicolegal examinations using colposcopy with digital imaging. The Foley catheter technique uses an inflated balloon in the distal vaginal vault to expand the estrogenized hymen to its full capacity so that the edge may be readily visualized for signs of trauma. The Foley technique was compared with gross inspection, using supine labial traction, to photodocument hymenal abnormalities. Photographs of the hymen were obtained using the labial traction technique and then with the Foley technique. Three emergency physicians independently examined each pair of photographs with high interrater agreement for the presence of injury (,= 0.88). Results: Twenty adolescent sexual assault victims volunteered for the study; mean age was 14.8 years. Gross inspection of the hymen using supine labial traction identified hymenal injuries in three patients (15%). Use of the Foley catheter balloon technique allowed identification of hymenal abnormalities in nine additional cases (60%). The common injuries to the hymen included lacerations (30%), followed by ecchymosis and abrasions. One patient (5%) voiced discomfort (mild pressure sensation) during inflation of the balloon. Conclusions: The Foley catheter balloon technique is a simple method allowing improved photodocumentation of hymenal trauma in adolescent sexual assault victims compared with supine labial traction. [source] Xenon and isoflurane improved biventricular function during right ventricular ischemia and reperfusionACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 4 2010M. HEIN Background: Although anesthetics have some cardioprotective properties, these benefits are often counterbalanced by their negative inotropic effects. Xenon, on the other hand, does not influence myocardial contractility. Thus, xenon may be a superior treatment for the maintenance of global hemodynamics, especially during right ventricular ischemia, which is generally characterized by a high acute complication rate. Methods: The effects of 70 vol% xenon and 0.9 vol% isoflurane on biventricular function were assessed in a porcine model (n=36) using the conductance catheter technique, and the expression of the type B natriuretic peptide (BNP) gene was measured. The animals underwent 90 min of right ventricular ischemia followed by 120 min of reperfusion. A barbiturate-anesthetized group was included as a control. Results: Cardiac output was compromised in unprotected animals during ischemia by 33±18% and during reperfusion by 53±17%. This was mainly due to impaired contractility in the left ventricle (LV) and increased stiffness. Isoflurane attenuated the increase in stiffness and resulted in a higher preload. In contrast, xenon increased the right ventricular afterload, which was compensated by an increase in contractility. Its effects on diastolic function were less pronounced. Upregulation of BNP mRNA expression was impeded in the remote area of the LV by both isoflurane and xenon. Conclusions: Xenon and isoflurane demonstrated equipotent effects in preventing the hemodynamic compromise that is induced by right ventricular ischemia and reperfusion, although they acted through somewhat differential inotropic and vasodilatory effects. [source] Feasibility of infusion pumps for continuous spinal administration of local anesthetics in post-operative pain therapyACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 5 2009M. WENK Background and Objectives: For completion of perioperative care and for general ethical considerations, any intraoperatively used catheter technique should be utilizable for post-operative pain therapy. Continuous spinal anesthesia (CSA) is an established form of local anesthetic application. However, for its use in post-operative therapy, infusion pumps are required that are technically able to deliver low rates and are distinctive in design to avoid possible pump or medication swaps. Because of a lack of devices specifically designed for CSA, we investigated the potential deployability of infusion pumps for post-operative pain therapy via CSA microcatheters, which were originally designed and approved for different applications. Methods: The accuracy of infusion rates of three different pumps was measured in a liquor model environment. Furthermore, we investigated safety and user-friendliness by interviewing 30 anesthesiologists and 15 pain nurses. Results: Except for the first hour of infusion, all pumps provided comparable and adequate flow profiles. However, interviews revealed significant risk factors for all pumps in terms of swapping devices, lines or medications and misprogramming the units. Discussion: All pumps tested were technically able to deliver accurate flow rates; however, because the non-CSA-specific design involves the risk of medication overdosage and syringe swaps, none of the systems tested can be recommended for routine use in post-operative CSA, irrespective of the fact that it was an off-label application anyway. Therefore, to ensure patient safety, continuous spinal administration of local anesthetics via microcatheters is a questionable method of post-operative pain therapy as long as non-specific pumps are used. [source] First in man use of the Advanta trademark V12 ePTFE-coated stent in aortic coarctation,CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 1 2009Hafiz Hussein MRCPI Abstract The treatment of aortic coarctation has classically been surgery, but recent advances have seen the increasing adoption of percutaneous catheter based techniques to correct this problem. We describe a first in man use catheter technique with the Advanta ePTFE coated stent via a 9Fr access. © 2009 Wiley-Liss, Inc. [source] Coaxial double catheter technique followed by buddy wire placement for ostial lesion of right coronary artery with anterior take-offCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 7 2007Shinichi Furuichi MD Abstract This report describes a technique for percutaneous coronary intervention in an ostial lesion with difficult take-off utilising an 8F guiding catheter and a 5F 125 cm-long diagnostic catheter followed by buddy wire placement. © 2007 Wiley-Liss, Inc. [source] Novel double catheter technique in complex percutaneous coronary interventionsCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 6 2006Imad A. Alhaddad MD Abstract We present a novel double catheter technique for successful complex intervention of a very old proximal left circumflex chronic total occlusion (>10 years old). Prior attempts of guide wire passage using bare wire alone, over-the wire balloon or microcatheter support techniques were unsuccessful. © 2006 Wiley-Liss, Inc. [source] | ||||||||||