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Catheterization techniques

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https://www.readbyqxmd.com/read/28214966/anomalous-coronary-arteries-and-myocardial-bridges-risk-stratification-in-children-using-novel-cardiac-catheterization-techniques
#1
Hitesh Agrawal, Silvana Molossi, Mahboob Alam, S Kristen Sexson-Tejtel, Carlos M Mery, E Dean McKenzie, Charles D Fraser, Athar M Qureshi
The evaluation of the vast majority of children with anomalous aortic origin of a coronary artery (AAOCA) and/or myocardial bridges is performed with non-invasive testing. However, a subset of these patients may benefit from invasive testing for risk stratification. All patients included in the Coronary Anomalies Program (CAP) at Texas Children's Hospital who underwent cardiac catheterization were included. Techniques included selective coronary angiograms (SCA), intravascular ultrasound (IVUS), and fractional flow reserve (FFR) measurements with provocative testing using adenosine and/or dobutamine infusions...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28199132/comparison-of-long-term-results-of-percutaneous-treatment-techniques-for-hepatic-cystic-echinococcosis-types-2-and-3b
#2
Okan Akhan, Aysun E Salik, Turkmen Ciftci, Devrim Akinci, Filiz Islim, Burcu Akpinar
OBJECTIVE: The purpose of this study was to determine the long-term results of a modified catheterization technique for percutaneous treatment of hepatic cystic echinococcosis (CE) types 2 and 3b and to retrospectively compare the results of puncture, aspiration, injection, and reaspiration (PAIR); standard catheterization; and the modified catheterization technique. MATERIALS AND METHODS: Seventy-three patients (37 male, 36 female; 75 cysts) with CE types 2 and 3b who underwent percutaneous treatment from March 1991 to August 2008 were included...
February 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28188058/usefulness-of-newly-method-of-central-venous-catheter-securement-using-continuous-suture
#3
Janghyuck Moon, Sung Uk Cho, Jin Woong Lee, Seung Ryu, Yong Chul Cho, Won Joon Jeong, Hong Joon Ahn, Ki Hyuk Joo
INTRODUCTION: To reduce the time required for suture closure for central venous catheterization, a new procedure was developed using a continuous suture technique. The present study was conducted to investigate the usefulness of this method. METHOD: The study was conducted with 90 volunteers among the doctors in the university hospital. Preliminary training (using video) on the two fixation methods was given to the participants prior to the experiment. After applying the central vein of the pig skin, a suture up to the butterfly seal was prepared, and the participant was allowed to fix the suture using the classic method and the new method...
January 28, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28185634/usefulness-of-a-noninvasive-device-to-identify-elevated-left-ventricular-filling-pressure-using-finger-photoplethysmography-during-a-valsalva-maneuver
#4
Panagis Galiatsatos, Theingi Tiffany Win, Jennifer Monti, Peter V Johnston, William Herzog, Jeffrey C Trost, Chao-Wei Hwang, Gene Y Fridman, Nae-Yuh Wang, Harry A Silber
The high rate of re-hospitalization for heart failure might be reduced by improving noninvasive techniques for identifying elevated left ventricular (LV) filling pressure. We previously showed that changes in a finger photoplethysmography (PPG) waveform during the Valsalva maneuver (VM) reflect invasively measured LV end-diastolic pressure (LVEDP). We have since developed a hand-held device that analyzes PPG while guiding the expiratory effort of a VM. Here we assessed the sensitivity and specificity of this device for identifying elevated LVEDP in patients...
January 5, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28183585/oblique-approach-for-ultrasound-guided-radial-artery-catheterization-vs-transverse-and-longitudinal-approaches-a-randomized-trial
#5
Usama Elsayed Mohammed Abdalla, Alaa Elmaadawey, AlRefaey Kandeel
STUDY OBJECTIVE: To investigate the value of using a new technique for ultrasound-guided radial artery catheterization; oblique approach; vs transverse and longitudinal views are the traditionally used approaches aiming to combine benefits and avoid drawbacks of aforementioned approaches. DESIGN: A prospective randomized nonblinded study. SETTING: Gastroenterology Center, Mansoura University, Egypt from February 2015 to August 2015. PATIENTS: One hundred twenty-six surgical and intensive care unit patients indicated for arterial catheterization...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28181002/objective-assessment-of-endovascular-navigation-skills-with-force-sensing
#6
Hedyeh Rafii-Tari, Christopher J Payne, Colin Bicknell, Ka-Wai Kwok, Nicholas J W Cheshire, Celia Riga, Guang-Zhong Yang
Despite the increasing popularity of endovascular intervention in clinical practice, there remains a lack of objective and quantitative metrics for skill evaluation of endovascular techniques. Data relating to the forces exerted during endovascular procedures and the behavioral patterns of endovascular clinicians is currently limited. This research proposes two platforms for measuring tool forces applied by operators and contact forces resulting from catheter-tissue interactions, as a means of providing accurate, objective metrics of operator skill within a realistic simulation environment...
February 8, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28163423/mechanism-of-valve-failure-and-efficacy-of-reintervention-through-catheterization-in-patients-with-bioprosthetic-valves-in-the-pulmonary-position
#7
Ryan Callahan, Lisa Bergersen, Christopher W Baird, Diego Porras, Jesse J Esch, James E Lock, Audrey C Marshall
BACKGROUND: Surgical and transcatheter bioprosthetic valves (BPVs) in the pulmonary position in patients with congenital heart disease may ultimately fail and undergo transcatheter reintervention. Angiographic assessment of the mechanism of BPV failure has not been previously described. AIMS: The aim of this study was to determine the mode of BPV failure (stenosis/regurgitation) requiring transcatheter reintervention and to describe the angiographic characteristics of the failed BPVs and report the types and efficacy of reinterventions...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28163148/the-growing-role-of-echocardiography-in-interventional-cardiology-the-present-and-the-future
#8
REVIEW
A P Patrianakos, A A Zacharaki, E I Skalidis, M I Hamilos, F I Parthenakis, P E Vardas
As structural heart disease interventions continue to evolve to a sophisticated level, accurate and reliable imaging is required for pre-procedural selection of cases, intra-procedural guidance, post-procedural evaluation , as well as, for long-term follow-up of patients. Traditionally, cardiovascular procedures in the catheterization laboratory were guided by fluoroscopy and angiography. Advances in echocardiography can overcome most limitations of conventional imaging modalities and provide a successful completion of each step, of any catheter-based treatment...
February 2, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28160267/third-line-treatment-of-colorectal-liver-metastases-using-debiri-chemoembolization
#9
Germano Scevola, Giorgio Loreni, Marco Rastelli, Stefano Sposato, Sara Ramponi, Vittorio Miele
To evaluate safety, efficacy of drug-eluting beads with irinotecan (DEBIRI) on local response and survival of patients affected by colorectal liver metastases (CRLM) progressing during or after second line was evaluated. Sixty-two patients, with colorectal liver metastases, not suitable for surgery or thermal ablation treatments, progressing during or within 6 month from the end of second-line chemotherapy, were treated with DEBIRI chemoembolization between February 2009 and July 2014. CRLM were histologically confirmed...
March 2017: Medical Oncology
https://www.readbyqxmd.com/read/28157793/ultrasound-guided-subclavian-vein-cannulation-in-low-birth-weight-neonates
#10
Ulrik Lausten-Thomsen, Zied Merchaoui, Cécile Dubois, Sergio Eleni Dit Trolli, Nolwenn Le Saché, Mostafa Mokhtari, Pierre Tissières
OBJECTIVES: Central venous access in critically ill, small infants remains technically challenging even in experienced hands. Several vascular accesses exist, but the subclavian vein is often preferred for central venous catheter insertion in infants where abdominal malformation and/or closure of the vein preclude the use of umbilical venous catheters, as catheterization of the subclavian vein is easier in very short necks than the internal jugular vein for age-related anatomical reasons...
February 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28156208/image-guided-intrathecal-baclofen-pump-catheter-implantation-a-technical-note-and-case-series
#11
Shenandoah Robinson, Faith C Robertson, Hormuzdiyar H Dasenbrock, Cormac P O'Brien, Charles Berde, Horacio Padua
OBJECTIVE Medically refractory spasticity and dystonia are often alleviated with intrathecal baclofen (ITB) administration through an indwelling catheter inserted in the lumbar spine. In patients with cerebral palsy, however, there is a high incidence of concomitant neuromuscular scoliosis. ITB placement may be technically challenging in those who have severe spinal deformity or who have undergone prior instrumented thoracolumbar fusion. Although prior reports have described drilling through the lumbar fusion mass with a high-speed bur, as well as IT catheter implantation at the foramen magnum or cervical spine, these approaches have notable limitations...
February 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28154883/-urinary-tract-infections-in-children
#12
E Lellig, M Apfelbeck, J Straub, A Karl, S Tritschler, C G Stief, M Riccabona
Urinary tract infections (UTI) are the most common bacterial infections in children. The symptoms are not very specific and range from abdominal pain, poor feeding to nocturnal urinary incontinence. The technique of collecting urine plays an important role for securing the diagnosis. The best way to obtain urine in non-toilet-trained children is catheterization or suprapubic bladder aspiration. In toilet-trained children midstream urine is an acceptable alternative after cleaning the foreskin or labia. In the case of an infection a prompt empirical antibiotic therapy is necessary to reduce the risk of parenchymal scarring of the kidneys...
February 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28128904/robotic-assisted-laparoscopic-augmentation-ileocystoplasty
#13
Peter A Caputo, Daniel Ramirez, Matthew Maurice, Onder Kara, Ryan Nelson, Ercan Malkoc, Jihad Kaouk
INTRODUCTION: Augmentation ileocystoplasty is a common treatment in adults with low capacity bladders due to neurogenic bladder dysfunction. We describe here our technique for robotic assisted laparoscopic augmentation ileocystoplasty in an adult with a low capacity bladder due to neurogenic bladder dysfunction. MATERIALS AND METHODS: The patient is a 35 years-old man with neurogenic bladder due to a C6 spinal cord injury in 2004. Cystometrogram shows a maximum capacity of 96cc and Pdet at maximum capacity of 97cmH2O...
January 27, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28122140/disorders-of-micturition-in-small-animal-patients-clinical-significance-etiologies-and-management-strategies
#14
Eric Langfitt, Jennifer E Prittie, Yekaterina Buriko, Janine M Calabro
OBJECTIVES: To review the physiology of micturition, the pathophysiology of micturition disorders, and current pharmacological agents used to treat these disorders. To discuss different urinary catheterization techniques, along with the risks of catheter-associated urinary tract infections attributed with these techniques. ETIOLOGY: Many critically ill veterinary patients are at risk of developing a number of neurological and non neurological micturition-related disorders...
January 25, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28119887/botulinum-toxin-in-spinal-cord-injury-patients-with-neurogenic-detrusor-overactivity
#15
Young Sam Cho, Khae Hawn Kim
Evidence for the efficacy and safety of intravesical onabotulinum toxin A (onabotA) injections has led to them being licensed in many countries, including Korea, for the treatment of patients with urinary incontinence due to neurogenic detrusor overactivity (NDO) resulting from spinal cord injury or multiple sclerosis who are refractory or intolerant to anticholinergic medications. OnabotA injections have an inhibitory effect on acetylcholine release for up to 10 months, with a recommended dose of 200 U. OnabotA treatment has a beneficial effect not only on urinary symptoms, but also on quality of life...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28117329/outcome-comparison-of-different-approaches-to-self-intermittent-catheterization-in-neurogenic-patients-a-systematic-review
#16
REVIEW
S Shamout, X Biardeau, J Corcos, L Campeau
STUDY DESIGN: Systematic review (Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA); http://www.prisma-statement.org). OBJECTIVES: Different types of catheters and techniques have been described in the past three decades to identify the best self-intermittent catheterization method. Our aim is to review systematically the literature on the most appropriate material and technique to perform self-intermittent catheterization in the adult neurogenic population...
January 24, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28114042/validation-of-an-adaptive-transfer-function-method-to-estimate-the-aortic-pressure-waveform
#17
Yang Yao, Lisheng Xu, Yingxian Sun, Qiang Fu, Shuran Zhou, Dianning He, Yahui Zhang, Liang Guo, Dingchang Zheng
Aortic pulse wave reflects cardiovascular status, but unlike the peripheral pulse wave, is difficult to be measured reliably using non-invasive techniques. Thus, the estimation of aortic pulse wave from peripheral ones is of great significance. This study proposed an adaptive transfer function (ATF) method to estimate the aortic pulse wave from the brachial pulse wave. Aortic and brachial pulse waves were derived from 26 patients who underwent cardiac catheterization. Generalized transfer functions (GTF) were derived based on the autoregressive exogenous model...
December 6, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28100968/direct-measurement-of-left-atrial-pressure-during-routine-transradial-catheterization
#18
Faisal Fa'ak, Bahaeddin Shabaneh, George Younis
Left atrial pressure indicates the left ventricular filling pressure in patients who have systolic or diastolic left ventricular dysfunction or valvular heart disease. The use of indirect surrogate methods to determine left atrial pressure has been essential in the modern evaluation and treatment of cardiovascular disease because of the difficulty and inherent risks associated with direct methods (typically the transseptal approach). One method that has been widely used to determine left atrial pressure indirectly is Swan-Ganz catheterization, in which a balloon-flotation technique is applied to measure pulmonary capillary wedge pressure; however, this approach has been associated with several limitations and potential risks...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28100156/transcatheter-embolization-of-type-i-endoleaks-associated-with-endovascular-abdominal-aortic-aneurysm-repair-using-ethylene-vinyl-alcohol-copolymer
#19
Assaf Graif, Ansar Z Vance, Mark J Garcia, Kevin T Lie, Michael K McGarry, Daniel A Leung
PURPOSE: To evaluate the feasibility, safety, and outcome of transcatheter embolization using ethylene vinyl alcohol copolymer (EVOH) of type I endoleaks associated with endovascular abdominal aortic aneurysm repair. PATIENT POPULATION AND METHODS: Retrospective chart review was performed to identify 8 consecutive patients who had undergone EVOH embolization for type I endoleaks between 2012 and 2015. The primary approach used to access the endoleak was the perigraft technique, where the endoleak itself is catheterized at the anastomotic site...
January 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28090072/reconsideration-of-inferior-vena-cava-parameters-for-estimating-right-atrial-pressure-in-an-east-asian-population%C3%A3-comparative-simultaneous-ultrasound-catheterization-study
#20
Takayuki Kawata, Masao Daimon, Seitetsu L Lee, Koichi Kimura, Naoko Sawada, Shuo-Ju Chiang, Keitaro Mahara, Takeshi Okubo, Tomoko Nakao, Megumi Hirokawa, Boqing Xu, Tomoko S Kato, Masafumi Watanabe, Yutaka Yatomi, Issei Komuro
BACKGROUND: Ultrasound measurements of the inferior vena cava (IVC) diameter (IVCD), together with its respiratory variation, provide a noninvasive estimate of right atrial pressure (RAP). However, there is a paucity of studies that have compared this technique with simultaneous catheterization. We explored the best cut-off values of IVC parameters for elevated RAP in comparison with RAP measured by catheterization.Methods and Results:We prospectively enrolled 120 East Asian patients who were scheduled for catheterization...
January 13, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
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