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https://www.readbyqxmd.com/read/27871558/combipecs-the-single-injection-technique-of-pectoral-nerve-blocks-1-and-2-a-case-series
#1
Arunangshu Chakraborty, Rakhi Khemka, Taniya Datta, Suparna Mitra
Ultrasound-guided Pecs block can provide perioperative analgesia for breast surgery. A single-injection technique (COMBIPECS) combines both Pecs 1 and Pecs 2 blocks in a single needle pass. This technique saves time and is equally effective as the modified Pecs block which uses 2 needle passes. We present a case series of 21 patients who received the COMBIPECS block as a part of multimodal analgesia for breast cancer surgery. The block was administered before the surgery after induction of general anesthesia...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27863288/broad-ion-beam-serial-section-tomography
#2
B Winiarski, A Gholinia, K Mingard, M Gee, G E Thompson, P J Withers
Here we examine the potential of serial Broad Ion Beam (BIB) Ar(+) ion polishing as an advanced serial section tomography (SST) technique for destructive 3D material characterisation for collecting data from volumes with lateral dimensions significantly greater than 100µm and potentially over millimetre sized areas. Further, the associated low level of damage introduced makes BIB milling very well suited to 3D EBSD acquisition with very high indexing rates. Block face serial sectioning data registration schemes usually assume that the data comprises a series of parallel, planar slices...
November 11, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/27851263/1628-pecs-i-ii-blocks-as-rescue-analgesia-in-a-patient-undergoing-port-access-cardiac-surgery
#3
Suraj Yalamuri, Rebecca Klinger, William Bullock, Donald Glower, Jeffrey Gadsden, Brandi Bottiger
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27829018/paravertebral-block-plus-thoracic-wall-block-versus-paravertebral-block-alone-for-analgesia-of-modified-radical-mastectomy-a-retrospective-cohort-study
#4
Nai-Liang Li, Ben-Long Yu, Chen-Fang Hung
BACKGROUND AND OBJECTIVES: Paravertebral block placement was the main anesthetic technique for modified radical mastectomy in our hospital until February 2014, when its combination with blocks targeting the pectoral musculature was initiated. We compared the analgesic effects of paravertebral blocks with or without blocks targeting the pectoral musculature for modified radical mastectomy. METHODS: We retrospectively collected data from a single surgeon and anesthesiologist from June 1, 2012, to May 31, 2015...
2016: PloS One
https://www.readbyqxmd.com/read/27817875/photoelectrochemical-cell-for-simultaneous-electricity-generation-and-heavy-metals-recovery-from-wastewater
#5
Dawei Wang, Yi Li, Gianluca Li Puma, Panagiotis Lianos, Chao Wang, Peifang Wang
The feasibility of simultaneous recovery of heavy metals from wastewater (e.g., acid mining and electroplating) and production of electricity is demonstrated in a novel photoelectrochemical cell (PEC). The photoanode of the cell bears a nanoparticulate titania (TiO2) film capped with the block copolymer [poly(ethylene glycol)-b-poly(propylene glycol)-b-poly(ethylene glycol)] hole scavenger, which consumed photogenerated holes, while the photogenerated electrons transferred to a copper cathode reducing dissolved metal ions and produced electricity...
February 5, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27776103/parasternal-pecto-intercostal-pecs-and-transverse-thoracic-muscle-plane-blocks-a-rose-by-any-other-name-would-smell-as-sweet
#6
Romualdo Del Buono, Fabio Costa, Felice Eugenio Agrò
No abstract text is available yet for this article.
November 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27761032/ultrasound-guided-truncal-blocks-a-new-frontier-in-regional-anaesthesia
#7
Arunangshu Chakraborty, Rakhi Khemka, Taniya Datta
The practice of regional anaesthesia is rapidly changing with the introduction of ultrasound into the working domain of the anaesthesiologist. New techniques are being pioneered. Among the recent techniques, notable are the truncal blocks, for example, the transversus abdominis plane block, rectus sheath block, hernia block and quadratus lumborum block in the abdomen and the pectoral nerves (Pecs) block 1 and 2, serratus anterior plane block and intercostal nerve block. This narrative review covers the brief anatomical discourse along with technical description of the ultrasound-guided truncal blocks...
October 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27723295/dual-signal-amplification-using-gold-nanoparticles-enhanced-zinc-selenide-nanoflakes-and-p19-protein-for-ultrasensitive-photoelectrochemical-biosensing-of-microrna-in-cell
#8
Wenwen Tu, Huijuan Cao, Long Zhang, Jianchun Bao, Xuhui Liu, Zhihui Dai
Using Au nanoparticles (NPs) decorated water-soluble ZnSe-COOH nanoflakes (NFs), an ultrasensitive photoelectrochemical (PEC) biosensing strategy based on the dual signal amplification was proposed. As a result of the localized surface plasmon resonance (SPR) of Au NPs, the ultraviolet-visible absorption spectrum of Au NPs overlapped with emission spectra of ZnSe-COOH NFs, which generated efficient resonant energy transfer (RET) between ZnSe-COOH NFs and Au NPs. The RET improved photoelectric conversion efficiency of ZnSe-COOH NFs and significantly amplified PEC signal...
October 10, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27676665/efficacy-and-safety-of-ketamine-added-to-local-anesthetic-in-modified-pectoral-block-for-management-of-postoperative-pain-in-patients-undergoing-modified-radical-mastectomy
#9
Ahmed H Othman, Ahmad M Abd El-Rahman, Fatma El Sherif
BACKGROUND: Breast surgery is an exceedingly common procedure with an increased incidence of acute and chronic pain. Pectoral nerve block is a novel peripheral nerve block alternative to neuro-axial and paravertebral blocks for ambulatory breast surgeries. OBJECTIVES: This study aims to compare the analgesic efficacy and safety of modified Pecs block with ketamine plus bupivacaine versus bupivacaine in patients undergoing breast cancer surgery. STUDY DESIGN: A randomized, double-blind, prospective study...
September 2016: Pain Physician
https://www.readbyqxmd.com/read/27650294/clinical-usefulness-of-pectoral-nerve-block-for-the-management-of-zoster-associated-pain-case-reports-and-technical-description
#10
Yeon-Dong Kim, Seon-Jeong Park, Junho Shim, Hyungtae Kim
The recently introduced pectoral nerve (Pecs) block is a simple alterative to the conventional thoracic paravertebral block or epidural block for breast surgery. It produces excellent analgesia and can be used to provide balanced anesthesia and as a rescue block in cases where performing a neuraxial blockade is not possible. In the thoracic region, a neuraxial blockade is often used to manage zoster-associated pain. However, this can be challenging for physicians due to the increased risk of hemodynamic instability in the upper thoracic level, and comorbid and contraindicated medical conditions such as coagulopathy...
September 20, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27613329/porcine-endothelium-induces-dna-histone-complex-formation-in-human-whole-blood-a-harmful-effect-of-histone-on-coagulation-and-endothelial-activation
#11
Hyun Ju Yoo, Ji-Eun Kim, Ja Yoon Gu, Sae Bom Lee, Hyun Joo Lee, Ho Young Hwang, Yoohwa Hwang, Young Tae Kim, Hyun Kyung Kim
BACKGROUND: Neutrophils play a role in xenograft rejection. When neutrophils are stimulated, they eject the DNA-histone complex into the extracellular space, called neutrophil extracellular traps (NET). We investigated whether NET formation actively occurs in the xenograft and contributes to coagulation and endothelial activation. METHODS: Human whole blood was incubated with porcine aortic endothelial cells (pEC) from wild-type or α1,3-galactosyltransferase gene-knockout (GTKO) pigs...
September 10, 2016: Xenotransplantation
https://www.readbyqxmd.com/read/27543533/efficacy-of-pectoral-nerve-block-versus-thoracic-paravertebral-block-for-postoperative-analgesia-after-radical-mastectomy-a-randomized-controlled-trial
#12
S Kulhari, N Bharti, I Bala, S Arora, G Singh
BACKGROUND: Pectoral nerve (PecS) block is a recently introduced technique for providing surgical anaesthesia and postoperative analgesia during breast surgery. The present study was planned to compare the efficacy and safety of ultrasound-guided PecS II block with thoracic paravertebral block (TPVB) for postoperative analgesia after modified radical mastectomy. METHODS: Forty adult female patients undergoing radical mastectomy were randomly allocated into two groups...
September 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27418294/bulk-and-nanoscale-polypeptide-based-polyelectrolyte-complexes
#13
Amanda B Marciel, Eun Ji Chung, Blair K Brettmann, Lorraine Leon
Polyelectrolyte complexes (PECs) formed using polypeptides have great potential for developing new self-assembled materials, in particular for the development of drug and gene delivery vehicles. This review discusses the latest advancements in PECs formed using polypeptides as the polyanion and/or the polycation in both polyelectrolyte complexes that form bulk materials and block copolymer complexes that form nanoscale assemblies such as PEC micelles and other self-assembled structures. We highlight the importance of secondary structure formation between homogeneous polypeptide complexes, which, unlike PECs formed using other polymers, introduces additional intermolecular interactions in the form of hydrogen bonding, which may influence precipitation over coacervation...
July 2, 2016: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/27315180/implementation-of-pecs-i-and-pecs-ii-blocks-as-part-of-opioid-sparing-approach-to-breast-surgery
#14
Alexander Amir, Steeve Jolin, Stephane Amberg, Scott Nordstrom
No abstract text is available yet for this article.
July 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27124203/growth-and-photoelectrochemical-energy-conversion-of-wurtzite-indium-phosphide-nanowire-arrays
#15
Nikolay Kornienko, Natalie A Gibson, Hao Zhang, Samuel W Eaton, Yi Yu, Shaul Aloni, Stephen R Leone, Peidong Yang
Photoelectrochemical (PEC) water splitting into hydrogen and oxygen is a promising strategy to absorb solar energy and directly convert it into a dense storage medium in the form of chemical bonds. The continual development and improvement of individual components of PEC systems is critical toward increasing the solar to fuel efficiency of prototype devices. Within this context, we describe a study on the growth of wurtzite indium phosphide (InP) nanowire (NW) arrays on silicon substrates and their subsequent implementation as light-absorbing photocathodes in PEC cells...
May 24, 2016: ACS Nano
https://www.readbyqxmd.com/read/27097516/-difference-in-the-spread-of-injectate-between-ultrasound-guided-pectoral-nerve-block-i-and-ii-a-cadaver-study
#16
Masaru Kikuchi, Shunsuke Takaki, Takeshi Nomura, Takahisa Goto
BACKGROUND: Pectoral nerve block (PECS block) is first reported by Blanco et al, and mainly used for analgesia for breast surgery in Japan. However, the spread of PECS block is unclear. METHODS: Ultrasound guided PECS I and II blocks were performed in a cadaver, and the cadaver was dissected for evaluation of the spread of coloring matter. RESULTS: The coloring matter by PECS I block was spread to the axillary region between the major and minor pectoral muscles, while PECS II block remained over the fascia of the serratus muscle from mid-clavicular line to middle axillary line...
March 2016: Masui. the Japanese Journal of Anesthesiology
https://www.readbyqxmd.com/read/26934607/ultrasound-guided-serratus-anterior-plane-block-in-breast-reconstruction-surgery
#17
Rakhi Khemka, Arunangshu Chakraborty, Rosina Ahmed, Taniya Datta, Sanjit Agarwal
Pecs block and its variations have been used for various breast surgeries. We describe 2 cases of mastectomy and breast reconstruction by latissimus dorsi (LD) flap where regional analgesia was provided by a combination of ultrasound-guided Pecs-I block and serratus anterior plane block, a recently described technique in which local anesthetic is deposited in the plane between the LD and serratus anterior muscle. This resulted in excellent intraoperative and postoperative analgesia and a minimum of systemic analgesics...
May 1, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/26866299/update-on-ultrasound-for-truncal-blocks-a-review-of-the-evidence
#18
Matthew Abrahams, Ryan Derby, Jean-Louis Horn
UNLABELLED: We summarized the evidence for ultrasound (US) guidance for truncal blocks in 2010 by performing a systematic literature review and rating the strength of evidence for each block using a system developed by the United States Agency for Health Care Policy and Research. Since then, numerous studies of US guidance for truncal blocks have been published. In addition, 3 novel US-guided blocks have been described since our last review. To provide updated recommendations, we performed another systematic search of the literature to identify studies pertaining to US guidance for the following blocks: paravertebral, intercostal, transversus abdominis plane, rectus sheath, ilioinguinal/iliohypogastric, as well as the Pecs, quadratus lumborum, and transversalis fascia blocks...
March 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/26857336/analgesic-and-sensory-effects-of-the-pecs-local-anesthetic-block-in-patients-with-persistent-pain-after-breast-cancer-surgery-a-pilot-study
#19
Nelun Wijayasinghe, Kenneth G Andersen, Henrik Kehlet
BACKGROUND: Persistent pain after breast cancer surgery (PPBCS) develops in 15% to 25% of patients, sometimes years after surgery. Approximately 50% of PPBCS patients have neuropathic pain in the breast, which may be due to dysfunction of the pectoral nerves. The Pecs local anesthetic block proposes to block these nerves and has provided pain relief for patients undergoing breast cancer surgery, but has yet to be evaluated in patients with PPBCS. METHODS: The aim of this pilot study was to examine the effects of the Pecs block on summed pain intensity (SPI) and sensory function (through quantitative sensory testing [QST]) in eight patients with PPBCS...
February 9, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/26686924/multifunctional-reduced-graphene-oxide-trigged-chemiluminescence-resonance-energy-transfer-novel-signal-amplification-strategy-for-photoelectrochemical-immunoassay-of-squamous-cell-carcinoma-antigen
#20
Yan Zhang, Guoqiang Sun, Hongmei Yang, Jinghua Yu, Mei Yan, Xianrang Song
Herein, a photoelectrochemical (PEC) immunoassay is constructed for squamous cell carcinoma antigen (SCCA) detection using zinc oxide nanoflower-bismuth sulfide (Bi2S3) composites as photoactive materials and reduced graphene oxide (rGO) as signal labels. Horseradish peroxidase is used to block sites against nonspecific binding, and then participated in luminol-based chemiluminescence (CL) system. The induced CL emission is acted as an inner light source to excite photoactive materials, simplifying the instrument...
May 15, 2016: Biosensors & Bioelectronics
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