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https://www.readbyqxmd.com/read/28217050/acoustic-puncture-assist-device%C3%A2-versus-conventional-loss-of-resistance-technique-for-thoracic-paravertebral-space-identification-clinical-and-ultrasound-evaluation
#1
Monaz Abdulrahman Ali, Ashraf Abualhasan Abdellatif
BACKGROUND: Acoustic puncture assist device (APAD™) is a pressure measurement combined with a related acoustic signal that has been successfully used to facilitate epidural punctures. The principal of loss of resistance (LOR) is similar when performing paravertebral block (PVB). We investigated the usefulness of APAD™ by comparing it with the conventional LOR techniques for identifying paravertebral space (PVS). SUBJECTS AND METHODS: A total of 100 women who were scheduled for elective breast surgery under general anesthesia with PVB were randomized into two equal groups...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28208979/evaluation-of-the-efficacy-of-bupivacaine-0-5-alone-or-with-clonidine-1%C3%AE-g-kg-versus-control-in-a-single-level-paravertebral-blockin-patients-undergoing-pcnl-procedure
#2
Trupti S Kamble, Charulata Mahesh Deshpande
INTRODUCTION: Percutaneous Nephrolithotomy (PCNL) is a widely used procedure to remove complex upper tract renal calculi by means of a nephroscope. Although less invasive, PCNL is associated with significant pain owing to soft tissue injury. Most of these patients have mild to moderately compromised renal function. An anaesthesia plan that reduces intraoperative requirement of anaesthetics, analgesics, muscle relaxants and postoperative requirement of systemic analgesics is essential...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28122571/continuous-paravertebral-block-using-a-thoracoscopic-catheter-insertion-technique-for-postoperative-pain-after-thoracotomy-a-retrospective-case-control-study
#3
Yoshikane Yamauchi, Mitsuhiro Isaka, Kamon Ando, Keita Mori, Hideaki Kojima, Tomohiro Maniwa, Shoji Takahashi, Eiji Ando, Yasuhisa Ohde
BACKGROUND: Thoracic epidural analgesia (EDA) is the gold standard for pain control after thoracotomy. However, because of its severe side effects, it is contraindicated in patients taking anticoagulant or antiplatelet drugs. In addition, some patients' anatomy can make epidural catheter insertion challenging. We therefore investigated the safety and efficacy of paravertebral block (PVB) using a thoracoscopic insertion technique, which avoids damage to the parietal pleura, for postoperative pain after thoracotomy...
January 25, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28116506/a-randomized-controlled-trial-comparing-paravertebral-block-via-the-surgical-field-with-thoracic-epidural-block-using-ropivacaine-for-post-thoracotomy-pain-relief
#4
Takahiro Tamura, Shoichi Mori, Atsushi Mori, Masahiko Ando, Shuichi Yokota, Yasuyuki Shibata, Kimitoshi Nishiwaki
PURPOSE: We conducted a comparative study to evaluate analgesic efficacy between paravertebral block via the surgical field (PVB-sf), in which the catheter was inserted into the ventral side of the sympathetic trunk in the paravertebral space by a thoracic surgeon under thoracoscopic visualization, and epidural block (Epi) using ropivacaine for post-thoracotomy pain relief. METHODS: Lung cancer patients scheduled for lobectomy via thoracotomy were randomly allocated to receive either PVB-sf or Epi (n = 36 per group)...
January 23, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28100519/paravertebral-block-in-paediatric-abdominal-surgery-a-systematic-review-and-meta-analysis-of-randomized-trials
#5
E A Page, K L Taylor
The increased popularity of paravertebral block (PVB) can be attributed to its relative safety and comparable efficacy when compared with epidural analgesia. It has thus been recommended for open cholecystectomy and other less painful surgeries such as inguinal herniorraphy and appendectomy. We performed a systematic review of PVB in paediatric abdominal conditions to assess its clinical efficacy and side effects compared with other analgesic therapies.A search of Medline, Embase, and Web of Science and hand-searching references from inception date to May 2016 was done...
February 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28055111/there-and-back-again-loss-and-reacquisition-of-two-cys-photocycles-in-cyanobacteriochromes
#6
Nathan C Rockwell, Shelley S Martin, J Clark Lagarias
Cyanobacteriochromes (CBCRs) are cyanobacterial photoreceptors distantly related to phytochromes. Both families use linear tetrapyrrole (bilin) chromophores that are covalently attached to a conserved Cys residue. CBCRs are more spectrally diverse than phytochromes, with known examples detecting light from the near ultraviolet to the edge of the infrared (370-750 nm). Detection of ultraviolet to blue light by CBCRs is mediated by a second Cys residue, which forms a covalent linkage to the bilin C10 atom. Second linkage formation is best understood in a subfamily possessing a conserved Asp-Xaa-Cys-Phe (DXCF) motif...
January 5, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28000203/comparison-of-continuous-epidural-block-and-continuous-paravertebral-block-in-postoperative-analgaesia-after-video-assisted-thoracoscopic-surgery-lobectomy-a-randomised-non-inferiority-trial
#7
RANDOMIZED CONTROLLED TRIAL
Sylweriusz Kosiński, Edward Fryźlewicz, Michał Wiłkojć, Adam Ćmiel, Marcin Zieliński
BACKGROUND: Video-assisted (VATS) lung lobectomy can be associated with stronger postoperative pain than is commonly believed. It is generally accepted to introduce multimodal analgaesic strategies based on regional blockade, opioids and non-steroidal anti-inflammatory drugs. However, there is still no consensus regarding the optimal regional technique. The aim of this study was to compare the analgaesic efficacy of continuous thoracic epidural block (TEA) and percutaneous continuous paravertebral block (PVB) in patients undergoing video-assisted lung lobectomy...
2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27936555/low-temperature-all-solution-processed-transparent-silver-nanowire-polymer-azo-nanoparticles-composite-electrodes-for-efficient-ito-free-polymer-solar-cells
#8
Xiaoqin Zhang, Jiang Wu, Jiantai Wang, Qingqing Yang, Baohua Zhang, Zhiyuan Xie
We present a kind of all-solution-processed transparent conductive film comprising of silver nanowire (AgNW), polyvinyl butyral (PVB), and Al-doped ZnO nanoparticles (AZO NPs) composite (APA) by layer-by-layer blade-coating on glass substrate at low temperature. This kind of transparent APA film exhibits high transmittance at a wide range of 400-700 nm. The sheet resistance of the APA film can be as low as 21 Ω sq(-1) with transmittance over 94% at 550 nm. The introduction of PVB significantly improves the APA composite adhesion to glass substrate...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27921281/colorful-hydrophobic-poly-vinyl-butyral-cationic-dye-fibrous-membranes-via-a-colored-solution-electrospinning-process
#9
Xu Yan, Ming-Hao You, Tao Lou, Miao Yu, Jun-Cheng Zhang, Mao-Gang Gong, Fu-Yan Lv, Yuan-Yuan Huang, Yun-Ze Long
Colorful nanofibrous membranes have attracted much attention for their visual varieties and various functionalities. In this article, a colored solution electrospinning process was used to fabricate colorful hydrophobic poly(vinyl butyral) (PVB)/cationic dye nanofibrous membranes (NFMs) successfully. The color and morphology of these as-spun nanofibrous membranes have been analyzed by colorimetry, spectroscopy, and scanning electron microscopy (SEM). It is shown that the as-spun colorful PVB-based membranes exhibit excellent level-dyeing property and color stability...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27909035/randomised-controlled-pilot-study-to-investigate-the-effectiveness-of-thoracic-epidural-and-paravertebral-blockade-in-reducing-chronic-post-thoracotomy-pain-topic-feasibility-study-protocol
#10
Joyce Yeung, Teresa Melody, Amy Kerr, Babu Naidu, Lee Middleton, Kostas Tryposkiadis, Jane Daniels, Fang Gao
INTRODUCTION: Open chest surgery (thoracotomy) is considered the most painful of surgical procedures. Forceful wound retraction, costochondral dislocation, posterior costovertebral ligament disruption, intercostal nerve trauma and wound movement during respiration combine to produce an acute, severe postoperative pain insult and persistent chronic pain many months after surgery is common. Three recent systematic reviews conclude that unilateral continuous paravertebral blockade (PVB) provides analgesia at least equivalent to thoracic epidural blockade (TEB) in the postoperative period, has a lower failure rate, and symptom relief that lasted months...
December 1, 2016: BMJ Open
https://www.readbyqxmd.com/read/27908143/efficient-molecular-quantum-dynamics-in-coordinate-and-phase-space-using-pruned-bases
#11
H R Larsson, B Hartke, D J Tannor
We present an efficient implementation of dynamically pruned quantum dynamics, both in coordinate space and in phase space. We combine the ideas behind the biorthogonal von Neumann basis (PvB) with the orthogonalized momentum-symmetrized Gaussians (Weylets) to create a new basis, projected Weylets, that takes the best from both methods. We benchmark pruned time-dependent dynamics using phase-space-localized PvB, projected Weylets, and coordinate-space-localized DVR bases, with real-world examples in up to six dimensions...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27858290/complete-sequence-and-variability-of-a-new-subgroup-b-nepovirus-infecting-potato-in-central-peru
#12
Joao De Souza, Giovanna Müller, Wilmer Perez, Wilmer Cuellar, Jan Kreuze
The complete bipartite genome (RNA1 and RNA2) of a new nepovirus infecting potato was obtained using small RNA sequencing and assembly complemented by Sanger sequencing. Each RNA encodes a single polyprotein, flanked by 5' and 3' untranslate regions (UTR) and followed by a poly (A) tail. The putative polyproteins encoded by RNA1 and RNA2 had sets of motifs which are characteristic of viruses in the genus Nepovirus. Sequence comparisons using the Pro-Pol region and the coat protein, including phylogenetic analysis of these regions, showed closest relationships with nepoviruses...
March 2017: Archives of Virology
https://www.readbyqxmd.com/read/27742320/organ-donation-and-transplantation-from-donors-with-systemic-infection-a-single-center-experience
#13
X Yuan, C Chen, J Zhou, M Han, X Wang, C Wang, X He
OBJECTIVES: Donors with bacteremia and sepsis are often considered to be controversial for organ retrieval due to potential transmission of an infectious agent to the recipient. Herein we report our initial experience of organ donation and transplantation results from donors with systemic infection. MATERIALS AND METHODS: From January 2013 to December 2014, 125 cases of donation were completed in our organ procurement organization including 90 cases of donation after brain death (DBD) and 35 cases of donation after circulatory death (DCD)...
September 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27685344/the-impact-of-paravertebral-block-analgesia-on-breast-cancer-survival-after-surgery
#14
Juan P Cata, Mariana Chavez-MacGregor, Vicente Valero, Walter Black, Daliah M Black, Farzin Goravanchi, Ifey C Ifeanyi, Mike Hernandez, Andrea Rodriguez-Restrepo, Vijaya Gottumukkala
BACKGROUND AND OBJECTIVES: The impact of regional anesthesia on breast cancer recurrence is controversial. We tested the hypothesis that the use of paravertebral block (PVB) analgesia during breast cancer surgery prolongs the recurrence-free survival (RFS) and overall survival (OS) of women with breast cancer. METHODS: Seven hundred ninety-two women with nonmetastatic breast cancer were included in this retrospective study. Patients were divided based on the administration of PVB analgesia for mastectomy surgeries...
November 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27586312/-thoracic-paravertebral-block-in-patients-ineligible-for-epidural-block
#15
Hideaki Kojima, Mitsuhiro Isaka, Yoshiyuki Yasuura, Reiko Shimizu, Hiroyuki Kayata, Shoji Takahashi, Eiji Ando, Yasuhisa Ohde
We retrospectively assessed the effectiveness and the safety of thoracic paravertebral block(PVB) in patients ineligible for epidural block (EP). Eleven PVB patients and 33 EP patients were enrolled. Postoperative pain was evaluated using a numerical rating scale (NRS). The mean NRS ± standard deviation at rest 24 and 48 hours after surgery were 1.36 ± 1.63 and 0.55 ± 1.03 in the PVB group and 1.07 ± 1.47 and 1.38 ± 1.31 in the EP group, respectively. There were no statistically significant differences in the NRS scores...
September 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27518726/retrolaminar-block-analgesic-efficacy-and-safety-evaluation
#16
Takeshi Murouchi, Michiaki Yamakage
PURPOSE: Retrolaminar block (RLB) is a thoracic truncal block that can produce analgesia for the thoracic and abdominal wall. However, the characteristics of RLB are not well known. The aim of this study was to determine analgesic efficacy by measuring postoperative consume of patient-controlled analgesia (PCA), additional nonsteroidal antiinflammatory drug (NSAID) rescue, and opioid rescue. Our secondary analysis included assessment of the chronological change in arterial levobupivacaine concentrations after the block...
August 12, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27512167/the-comparative-evaluation-of-safety-and-efficacy-of-unilateral-paravertebral-block-with-conventional-spinal-anaesthesia-for-inguinal-hernia-repair
#17
Sunil Kumar Sinha, Yudhyavir Brahmchari, Manpreet Kaur, Aruna Jain
BACKGROUND AND AIMS: Unilateral paravertebral block (PVB) as a sole anaesthetic technique is underutilised even in experienced hands. Hence, this study was undertaken regarding the efficacy and safety of PVB and compared with subarachnoid block (SAB) for inguinal hernia repair procedures. METHODS: Sixty-three consenting adult male patients scheduled for unilateral inguinal hernia repair were randomly assigned to receive either PVB or SAB (Group P: PVBs at T10-L2 levels, 5 mL of 0...
July 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27489056/preoperative-paravertebral-block-improves-postoperative-pain-control-and-reduces-hospital-length-of-stay-in-patients-undergoing-autologous-breast-reconstruction-after-mastectomy-for-breast-cancer
#18
Rajiv P Parikh, Ketan Sharma, Ryan Guffey, Terence M Myckatyn
BACKGROUND: Postoperative pain is a major challenge for patients undergoing breast reconstruction after surgical treatment of breast cancer, resulting in prolonged hospitalizations and additional resource utilization. Evidence on the efficacy of techniques to minimize postoperative pain in autologous breast reconstruction is lacking. We sought to determine whether preoperative paravertebral block (PVB), a regional anesthetic technique, affects postoperative pain control and hospital length of stay (LOS) in patients undergoing autologous breast reconstruction...
December 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27410841/squeezed-hollow-core-photonic-bragg-fiber-for-surface-sensing-applications
#19
Jingwen Li, Hang Qu, Maksim Skorobogatiy
We propose to use squeezed hollow-core photonic bandgap Bragg fibers for surface sensing applications. We demonstrate theoretically and confirm experimentally that squeezing a section of the Bragg fiber core increases overlap between the optical fields of the core guided modes and the modes bound to the sensing layer, thus, significantly enhancing their interaction via anticrossing phenomenon, which, in turn, enhances surface sensitivity of the fiber sensor. As a practical demonstration, we apply our fiber sensor to in situ monitoring of the dissolution dynamics of a sub-micron-thick polyvinyl butyral (PVB) film coated on the surface of the liquid-filled Bragg fiber core...
July 11, 2016: Optics Express
https://www.readbyqxmd.com/read/27389472/functional-analysis-and-intervention-for-perseverative-verbal-behaviour-of-an-older-adult-with-traumatic-brain-injury
#20
Amy Garcia Quearry, Duane A Lundervold
OBJECTIVE: A functional analysis of behaviour was conducted to determine the controlling variables related to the perseverative verbal behaviour (PBV) of a 60-year-old female with a long-standing traumatic brain injury receiving educational assistance. METHOD: Functional analyses (FA) of antecedent and consequent conditions related to PCB were conducted to determine controlling influence of: (a) content of verbal interaction and, (b) social reinforcement. After isolating the controlling variables, the functioned-based intervention was implemented in 60 minute tutoring sessions...
2016: Brain Injury: [BI]
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