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Catheterization techniques

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https://www.readbyqxmd.com/read/28345516/a-case-of-bilateral-megaducts-diagnostic-and-treatment-methods
#1
L Vatin, J M Foletti, C Collet, A Varoquaux, C Chossegros
INTRODUCTION: The pathology of the saliva glands comprises both tumoral and obstructive disorders. The latter include lithiasis, stenosis and megaduct. In this paper, we describe a clinical case of bilateral megaduct, a rare pathology, using sialo-MRI imaging and a conservative diagnostic-cum-therapeutic technique, sialendoscopy with dilation followed by catheterization. CLINICAL CASE: Our female patient presented oversized parotids with an unsightly deformation of the face (parotid ducts visible beneath the skin) and itchy cheeks, from which she had suffered for several years...
February 17, 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28345418/a-coaxial-dual-element-focused-ultrasound-probe-for-guidance-of-epidural-catheterization
#2
Guo-Chung Dong, Li-Chen Chiu, Chien-Kun Ting, Jia-Ruei Hsu, Chih-Chung Huang, Yin Chang, Gin-Shin Chen
Ultrasound guidance for epidural block has improved clinical blind-trial problems but the design of present ultrasonic probes poses operating difficulty of ultrasound-guided catheterization, increasing the failure rate. The purpose of this study was to develop a novel ultrasonic probe to avoid needle contact with vertebral bone during epidural catheterization. The probe has a central circular passage for needle insertion. Two focused annular transducers are deployed around the passage for on-axis guidance. A 17-gauge insulated Tuohy needle containing the self-developed fiber-optic-modified stylet was inserted into the back of the anesthetized pig, in the lumbar region under the guidance of our ultrasonic probe...
March 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28341499/renal-arteriovenous-malformations-a-rare-vascular-cause-of-back-pain
#3
Tazo Inui, David Frankel
OBJECTIVE: Renal arteriovenous malformation (AVM) is a very rare phenomenon (fewer than 200 cases in the literature), most commonly (75%) presenting with hematuria in young women. Renal AVMs may be cirsoid (multi-branched) or cavernous, with cirsoid morphology predominating 3:1. The historical treatment is partial nephrectomy. Best endovascular therapy is divided among many options. We present 2 cases of large renal AVMs treated with single Amplatzer plugs. METHODS: During a 2-year period (2014-15), 2 patients presented for vascular evaluation of renal AVMs found incidentally on workup for non-specific abdominal and back pain...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28336308/robotic-intracorporeal-continent-cutaneous-diversion
#4
Mihir M Desai, Giuseppe Simone, Andre Luis de Castro Abreu, Sameer Chopra, Mariaconsiglia Ferriero, Salvatore Guaglianone, Francesco Minisola, Daniel Park, Rene Sotelo, Michele Gallucci, Inderbir S Gill, Monish Aron
PURPOSE: Robotic intra-corporeal urinary diversion has mostly been utilized for ileal conduit or orthotopic neobladder diversion. Herein, we present the initial series, detailed technique and outcomes of robotic intra-corporeal Indiana pouch, with minimum 1-year follow-up. MATERIALS AND METHODS: Ten patients underwent robotic radical cystectomy, pelvic lymphadenectomy and intra-corporeal Indiana pouch urinary diversion for cancer (n=9) or benign disease (n=1). Data were collected prospectively...
March 21, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28330015/contact-aspiration-versus-stent-retriever-front-line-for-recanalisation-in-acute-cerebral-infarction-the-aster-trial
#5
Bertrand Lapergue, Julien Labreuche, Michel Piotin
RATIONALE: Mechanical thrombectomy (MT) with a stent retriever (SR), in association with intravenous (IV) rtPA, is now the standard of care in anterior circulation ischemic stroke caused by large vessel occlusion (LVO). Favorable outcome is strongly associated with the successful reperfusion status. New techniques for MT such as contact aspiration (CA) seem promising to increase reperfusion status and clinical outcome in retrospective studies. We aim at ascertaining whether CA is more efficient than stent retriever as a front-line endovascular procedure...
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28329748/extensive-multilevel-split-laminotomy-for-debulking-a-cervicothoracolumbar-nondysraphic-intramedullary-spinal-cord-lipoma-in-a-2-month-old-infant
#6
Ha Son Nguyen, Sean Lew
INTRODUCTION: Laminectomy is the traditional approach for posterior exposure of the spinal canal for tumor resection. Another technique is split laminotomy, which entails the division and retraction of the spinous processes and laminae to access the thecal sac. This technique has been employed for small-segment exposures, but not extensively explored for long-segment exposures. CASE: A 2-month-old male presented with progressive right-leg plegia. MRI of the spine revealed a large, intramedullary spinal-cord lipoma extending from C6 to L5...
March 23, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28321382/understanding-the-course-of-vertebral-artery-at-craniovertebral-junction-in-occipital-assimilation-of-atlas-made-simplified-using-conventional-angiography
#7
Anita Jagetia, Tushit Mewda, Ishu Bishnoi, Manoj Bhutte, Hukum Singh, A K Srivastava, Daljit Singh
Introduction Preoperative assessment of vertebral artery (VA) is important to avoid its injury during surgery at craniovertebral junction (CVJ). The main concern is the course of third segment of VA (V3) while performing instrumentation at CVJ, that is, segment of VA from its course through transverse foramen of C2 to its course along the posterior arch of C1. This segment of VA includes its passage through C1 transverse foramen as well. This observational study was done to analyze the course, curvature, and termination of VA in patients with occipital assimilation of atlas at CVJ, a complex congenital anomaly, and compared with the normal course for better understanding especially by young neurosurgeons and spine surgeons...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28315566/directly-ventricular-septal-defect-closure-without-using-arteriovenous-wire-loop-our-adult-case-series-using-transarterial-retrograde-approach
#8
Nihat Pekel, Ertuğrul Ercan, Mehmet Emre Özpelit, Ferhat Özyurtlu, Akar Yılmaz, Caner Topaloğlu, Serkan Saygı, Serkan Yakan, İstemihan Tengiz
OBJECTIVE: The standard transcatheter ventricular septal defects (VSD) closure procedure is established with arteriovenous (AV) loop and is called as antegrade approach. The directly retrograde transarterial VSD closure without using AV loop might be better option as shortens the procedure time and decreases radiation exposure. METHODS: Our series consist of twelve sequential adult cases with congenital VSDs (seven with perimembranous, four with muscular, one with postoperative residuel VSD)...
February 21, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28303869/-5-year-surgical-results-in-patients-with-chronic-postembolic-pulmonary-hypertension
#9
A M Chernyavsky, A G Edemsky, M A Chernyavsky, A R Tarkova, E N Kliver, S N Ivanov
AIM: To evaluate 5-year results of surgical treatment of patients with chronic postembolic pulmonary hypertension. MATERIAL AND METHODS: 170 patients with chronic postembolic pulmonary hypertension underwent pulmonary thrombendarterectomy. Mean age was 48±21.5 years. The operation was carried out using standard technique with hypothermia and circulatory arrest. We have analyzed clinical and functional status of 47 patients (23 males) prior to surgery and in long-term postoperative period (5-6 years)...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28296143/targeting-the-safe-zone
#10
Andrea Mignatti, Patricia Friedmann, David Paul Slovut
OBJECTIVE: The aim of this study was to assess the effectiveness of a quality improvement (QI) program in reducing vascular complications during cardiac catheterization. BACKGROUND: Vascular access complications during cardiac catheterization are associated with higher morbidity and mortality. We implemented a QI program focused on using micropuncture techniques and targeting the "safe zone," an area below the inferior border of the inferior epigastric artery and above the inferior border of the femoral head, for femoral artery puncture...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28296135/assessment-of-trans-aortic-pressure-gradient-using-a-coronary-pressure-wire-in-patients-with-mechanical-aortic-and-mitral-valve-prostheses
#11
Nisharahmed Kherada, Juan Carlos Brenes, Annapoorna S Kini, George D Dangas
Accurate evaluation of trans-aortic valvular pressure gradients is challenging in cases where dual mechanical aortic and mitral valve prostheses are present. Non-invasive Doppler echocardiographic imaging has its limitations due to multiple geometric assumptions. Invasive measurement of trans-valvular gradients with cardiac catheterization can provide further information in patients with two mechanical valves, where simultaneous pressure measurements in the left ventricle and ascending aorta must be obtained...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28289480/ultrasound-elastography-for-determination-of-the-age-of-venous-thrombi-evaluation-of-thrombus-evolution-in-patients-after-sclerotherapy
#12
Łukasz Paluch, Ewa Nawrocka-Laskus, Agnieszka Dąbrowska, Tadeusz Popiela, Jerzy Walecki
BACKGROUND: Venous thrombosis is a multicausal disease involving intravenous clot formation. It may occur spontaneously or after provoking events, such as traumatic injuries to the pelvis, upper and lower extermities, immobilization, intravascular procedures, including venous catheterization or injection. Color Doppler ultrasonography is a rapid and non-invasive technique for evaluation of venous disease. It is a very sensitive method for detection of thrombi, but has some limitations, e...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28283915/management-of-voiding-dysfunction-after-female-neobladder-creation
#13
REVIEW
Nathan Y Hoy, Joshua A Cohn, Casey G Kowalik, Melissa R Kaufman, W Stuart Reynolds, Roger R Dmochowski
PURPOSE OF REVIEW: Functional complications after orthotopic neobladder urinary diversion (ONB), including urinary incontinence and urinary retention, present unique challenges. The purpose of this review is to outline contemporary treatment options for voiding dysfunction after ONB in females. RECENT FINDINGS: Meticulous surgical technique in the form of urethral nerve-sparing has been shown to play an important role in maintaining continence, as has sparing the uterus when possible...
May 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28281046/successful-percutaneous-treatment-of-extrahepatic-cystic-echinococcosis-through-pair-and-single-puncture-catheter-techniques
#14
Serdar Arslan, Suleyman Bakdik, Fatih Oncu, Ismet Tolu, Mehmet Ali Eryilmaz
PURPOSE: To demonstrate the successful percutaneous treatment of extrahepatic cystic echinococcosis as an alternative to surgical procedures. MATERIALS AND METHODS: A total of 27 extrahepatic hydatid cysts in 12 patients, the spleen in 8 patients, muscles and soft tissues in 3 patients each and right adrenal gland in 1 patient were treated with PAIR (puncture, aspiration, injection, respiration) or single puncture catheterization methods. As a scolicidal and sclerosing agent, alcohol was used in all patients...
March 9, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28278167/superior-success-rate-of-intracavitary-electrocardiogram-guidance-for-peripherally-inserted-central-catheter-placement-in-patients-with-cancer-a-randomized-open-label-controlled-multicenter-study
#15
Ling Yuan, Rongmei Li, Aifeng Meng, Yuling Feng, Xiancui Wu, Yiqun Yang, Ping Chen, Zhenzhu Qiu, Jing Qi, Chuanying Chen, Jia Wei, Minyi Qin, Weiwei Kong, Xiangyu Chen, Wei Xu
BACKGROUND: Intracavitary electrocardiogram (IC ECG) guidance emerges as a new technique for peripherally inserted central catheters (PICCs) placement and demonstrates many potential advantages in recent observational studies. AIMS: To determine whether IC ECG-guided PICCs provide more accurate positioning of catheter tips compared to conventional anatomical landmarks in patients with cancer undergoing chemotherapy. METHODS: In this multicenter, open-label, randomized controlled study (ClinicalTrials...
2017: PloS One
https://www.readbyqxmd.com/read/28275942/bioresorbable-polymers-and-stent-devices
#16
REVIEW
Payam Dehghani
Percutaneous coronary interventions will never become obsolete, as evolution is inherent to interventional cardiology. Current drug-eluting platforms have appreciably improved their safety and efficacy profiles in different clinical settings compared to first-generation devices such that it is difficult to consider other alternatives. However, there is definite biological plausibility to consider devices with bioabsorbable polymers and/or scaffolds. It is also an undeniable fact that many patients, based on variety of belief systems, would prefer not to have a permanently implanted device...
February 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28275618/extracorporeal-life-support-for-refractory-ventricular-tachycardia
#17
REVIEW
Sujatha P Bhandary, Nicholas Joseph, James P Hofmann, Theodosios Saranteas, Thomas J Papadimos
Extracorporeal life support (ECLS) is a very effective bridging therapy in patients with refractory ventricular tachycardia (VT) associated with cardiogenic shock. A moribund patient in extremis, is not amenable to optimization by standard ACC/AHA guidelines. New approaches and novel salvage techniques are necessary to improve outcomes in patients with refractory clinical settings such as malignant ventricular arrhythmias, cardiac arrest, cardiogenic shock and/or pulmonary failure until further management options are explored...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28265218/minimally-invasive-lvad-deactivation-in-a-65-year-old-man-with-recurrent-pump-thrombosis-and-left-ventricular-recovery
#18
Akshay Pendyal, Christopher V Chien, James O Mudd, Jill M Gelow
Pump thrombosis is a dire sequela after left ventricular assist device (LVAD) implantation. Treatment comprises antiplatelet agents, anticoagulants, thrombolytic agents, and pump exchange. Although pump exchange is the definitive therapy, it is also the most invasive, often exposing patients to the risks of repeat sternotomy and cardiopulmonary bypass. In some cases, patients experience left ventricular recovery after LVAD implantation. The optimal strategy surrounding the management of LVADs in patients who have experienced ventricular recovery is unknown; techniques range from total system explantation to partial pump resection...
February 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28262447/electrical-cardiometry-a-reliable-solution-to-cardiac-output-estimation-in-children-with-structural-heart-disease
#19
Jitin Narula, Sandeep Chauhan, Sivasubramanian Ramakrishnan, Saurabh Kumar Gupta
OBJECTIVE: Comparison of cardiac output (CO) obtained using electric cardiometry (EC) and pulmonary artery catheterization (PAC) in pediatric patients with congenital structural heart disease. DESIGN: Prospective, observational study. SETTING: A tertiary hospital. PARTICIPANTS: The study comprised 50 patients scheduled to undergo cardiac catheterization. INTERVENTIONS: CO data triplets were obtained simultaneously from the cardiometry device ICON (Osypka Medical, Berlin, Germany) and PAC at the following predefined time points-(1) T1: 5 minutes after arterial and venous cannulation and (2) T2: 5 minutes postprocedure; the average of the 3 readings was calculated...
December 12, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28261815/the-practice-of-platelet-transfusion-prior-to-central-venous-catheterization-in-presence-of-coagulopathy-a-national-survey-among-clinicians
#20
E K van de Weerdt, A L Peters, E J Goudswaard, J M Binnekade, K P van Lienden, B J Biemond, A P J Vlaar
BACKGROUND: Correction of coagulopathy prior to central venous catheter (CVC) placement is advocated by guidelines, while retrospective studies support restrictive use of transfusion products. STUDY DESIGN AND METHODS: We conducted a mixed vignette and questionnaire web survey to investigate current practice and preferences for CVC placement. Clinical vignettes were used to quantify the tendency to administer platelet concentrate. A positive ß-coefficient is in favour of administering platelet concentrate...
March 5, 2017: Vox Sanguinis
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