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Svetlana S Efimova, Evgeny G Chulkov, Olga S Ostroumova
The effects of local anesthetics (LAs), namely, lidocaine (LDC), prilocaine (PLC), mepivacaine (MPV), bupivacaine (BPV), procaine (PC), and tetracaine (TTC), on the steady-state transmembrane conductance induced by the cis-side addition of the antifungal polyene macrolide antibiotic, nystatin (NYS), in planar lipid bilayers were studied. The addition of TTC to model membranes comprising DOPC and cholesterol (33 mol%) led to a nearly twenty-fold increase in the steady-state NYS-induced membrane conductance...
March 8, 2018: Colloids and Surfaces. B, Biointerfaces
Andrew C Faust, Emily Guy, Nidhu Baby, Anthony Ortegon
BACKGROUND: Methemoglobinemia is a well-recognized adverse drug reaction related to the use of certain local anesthetic agents. The mainstay of treatment for methemoglobinemia is i.v. methylene blue, along with provision of supplemental oxygen; however, methylene blue is listed as a category X teratogen. This poses an issue should methemoglobinemia develop during pregnancy. CASE REPORT: A 35-year-old, 20-week and 5-day gravid female was transferred from an outpatient oral surgeon's office for hypoxia...
March 5, 2018: Journal of Emergency Medicine
Olivia Cook, John Nusstein, Melissa Drum, Sara Fowler, Al Reader, John Draper
INTRODUCTION: Prilocaine plain has a high pH and concentration (4%), which could decrease the pain of injection and increase success. The purpose of this study was to compare pain associated with anesthetic solution deposition and the degree of pulpal anesthesia obtained with the combination of prilocaine and lidocaine versus a lidocaine and lidocaine combination when used for inferior alveolar nerve blocks (IANBs). METHODS: One hundred eighteen asymptomatic subjects were randomly given a combination of 1 cartridge of 4% prilocaine plain plus 1 cartridge of 2% lidocaine with 1:100,000 epinephrine or a combination of 2 cartridges of 2% lidocaine with 1:100,000 epinephrine for the IANB at 2 separate appointments...
February 17, 2018: Journal of Endodontics
Franz J Söbbeler, Sabine Br Kästner
OBJECTIVE: To evaluate the transdermal local anaesthetic effect of lidocaine or lidocaine combined with prilocaine or tetracaine in horses. STUDY DESIGN: Experimental, randomized study. ANIMALS: A total of five healthy adult warmblood horses. METHODS: Horses were clipped bilaterally at the withers, cranial saddle area and caudal saddle area. Baseline measurements for mechanical superficial sensation via von Frey filaments and nociceptive thermal thresholds were performed...
December 2, 2017: Veterinary Anaesthesia and Analgesia
Ahmed M Abbas, Hamida A Abdel Hafiz, Aya M Abdelhafez, Armia Michael, Alaa M Ismail
OBJECTIVE: The current study aims to compare the analgesic effect of lidocaine-prilocaine (LP) cream with lidocaine infiltration during repair of perineal tears after vaginal delivery. MATERIALS AND METHODS: A single center open-labeled randomized clinical trial was carried out in a tertiary University Hospital between October 2016 and May 2017 (Clinical Trials.Gov: NCT02883179). We included parous women delivered at gestational age > 37 weeks with first or second degree perineal tears...
January 15, 2018: Journal of Maternal-fetal & Neonatal Medicine
Wenxin Yu, Tianyou Wang, Jiafang Zhu, Yajing Qiu, Hui Chen, Yunbo Jin, Xi Yang, Xiaojie Hu, Lei Chang, Yijie Chen, Gang Ma, Xiaoxi Lin
EMLA cream was developed to reduce pain during pulsed-dye laser (PDL) treatment; however, no standard assessment for the therapeutic outcomes of PDL with EMLA creams thus far available. This comparative, prospective clinical trial evaluates laser efficacy and pain reduction during PDL treatment with EMLA cream for local topical anesthesia. Nineteen patients with untreated port-wine stain (PWS) were treated using PDL and examined in this study. Treatment specifications included Vbeam® PDL (Candela Corp.), 595-nm wavelength, 9 J/cm2 radiant exposure, 0...
December 15, 2017: Lasers in Medical Science
Ryo Hirao, Tsugumi Fujita, Aiko Sakai, Eiichi Kumamoto
Although an inhibition of action potential conduction in nerve fibers possibly contributes to at least a part of antinociception produced by analgesics and the adjuvants, it has not been fully examined yet how the conduction inhibition differs in extent among their drugs. We investigated the effects of various antidepressants used as analgesic adjuvants on compound action potentials (CAPs) recorded from the frog sciatic nerve by using the air-gap method. The results were compared with those of the other adjuvants that were reported previously...
January 15, 2018: European Journal of Pharmacology
Sara Erol, Zehra Arslan, Isemi Han Celik, Ahmet Yagmur Bas, Nihal Demirel
Methemoglobin (MetHb) is a form of hemoglobin which contains iron in ferric state. The delivery of oxygen to tissues is impaired and cellular hypoxia develops with an increase in MetHb levels. Methemoglobinemia is a rare but potentially lethal complication of local anesthetics. In this clinical brief, three cases of transient neonatal methemoglobinemia, caused by maternal pudendal anesthesia with prilocaine, are reported.
December 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Ekrem Akdeniz, Mustafa Suat Bolat, Sevda Akdeniz
Objective: The purpose of this study was to evaluate the analgesic effect of a prilocaine + bupivacaine combination in patients undergoing periprostatic nerve block (PNB) by comparing its effects with those of prilocaine alone. Design: Single center, single-blind, prospective descriptive study. Subjects: Four hundred patients with transrectal prostate biopsy pain. Methods: The patients in this prospective, randomized controlled study were divided into two groups...
November 21, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
R A Valdez-Flores, J G Campos-Salcedo, J J Torres-Gomez, A Sedano-Lozano, J Parés-Hipólito, L M Shelton, A Canizalez-Román, M A Valdez-Flores
BACKGROUND: Recent trends in prostate biopsy analgesia suggest a combination anesthetic to provide better pain relief than periprostatic nerve block (PPNB) alone. This study aimed to demonstrate the efficacy and safety of three intrarectal local anesthesia (IRLA) combined with PPNB in patients undergoing transrectal ultrasonography (TRUS)-guided prostate biopsy. METHODS: In this prospective, randomized study, 120 prostate biopsy patients were equally divided into four IRLA groups: group 1 (placebo) received simple lubrication; group 2 received 2% lidocaine gel; group 3 received 100 mg indomethacin suppository and group 4 received 5% prilocaine/lidocaine (EMLA) cream...
February 2018: World Journal of Urology
Stefan Lillieborg, Leif Aanderud
The lidocaine-prilocaine cream (EMLA(TM)) effectively reduces the pain from debridement of chronic leg ulcers. Studies have demonstrated that when applied to leg ulcers, plasma concentrations of the local anaesthetics are well below the threshold for CNS toxicity. However, there are minimal pharmacokinetic data available from EMLA application to burn wounds. This study evaluated EMLA cream for debridement of burns with regard to plasma concentrations of lidocaine and prilocaine, and reviewed the published literature on safety and efficacy of lidocaine-prilocaine applied epicutaneously to burns...
2017: International Journal of Burns and Trauma
Peijun You, Ran Yuan, Chuanyu Chen
PURPOSE: Topical anesthesia analgesic therapy has diverse applicability in solving the barrier properties of skin and unfavorable physicochemical properties of drugs. Lidocaine (LID) combined with prilocaine (PRI) has been used as a topical preparation for dermal anesthesia for treatment of conditions such as paresthesia. MATERIALS AND METHODS: In this study, for combination anesthesia and overcoming the drawbacks of LID and PRI, respectively, LID- and PRI-loaded solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs) were prepared and characterized by determination of their particle size, drug loading capacity, stability, in vitro drug release behavior and in vitro cellular viability...
2017: Drug Design, Development and Therapy
Xiuxia Wang, Xiaoli Wu, Ke Liu, Lingling Xia, Xunxun Lin, Wei Liu, Zhen Gao
Intralesional steroid injections are the standard treatment for hypertrophic scars and keloids. The procedure is, however, quite painful and is unpopular with patients because of this. Topical application of anesthetic creams, such as Ametop gel (tetracaine) and EMLA cream (lidocaine and prilocaine), has limited efficacy because of poor drug penetration. The onset of the analgesic effect is also slow, which means that the use of topical anesthetics is time-consuming in clinical practice.We hypothesized that a commercially available cryotip could be used to provide fast-acting topical cryoanesthesia that would reduce the pain associated with steroid injections...
October 2017: Medicine (Baltimore)
Renê Oliveira do Couto, Camila Cubayachi, Paulo Linares Calefi, Renata Fonseca Vianna Lopez, Vinícius Pedrazzi, Cristiane Masetto De Gaitani, Osvaldo de Freitas
Needle-phobia is usually a great concern in dentistry, and the replacement of painful injections by patient-friendly needle-free topical formulations would bring several advantages in dental practice worldwide. In this pursuit, the effects of combining prilocaine hydrochloride (PCL) and lidocaine hydrochloride (LCL) in different proportions in mucoadhesive films on their in vitro permeation and retention through porcine esophageal mucosa was studied. Complementarily, the permeation and retention of isolated LCL was investigated...
November 28, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
Zubeyir Sivrikaya, Guldem Turan, Reyhan Cetiner, Dilek Subasi, Gulcin Ozturk, Asu Ozgultekin, Osman Ekinci
OBJECTIVE: The aim of this study was to compare 2 techniques that are widely used in hand, wrist, and forearm: regional intravenous anesthesia (RIVA) and infraclavicular brachial block. METHODS: A total of 100 patients who were aged 18 to 85 years and who underwent hand, wrist, or forearm surgery of at least 30 minutes duration were included. RIVA was applied to Group 1 patients with administration of 40 mL of prilocaine (3 mg/kg). Ultrasonography-guided infraclavicular block was performed on Group 2 patients with 20 mL of 1% prilocaine...
2017: Northern Clinics of Istanbul
Harun Gunes, Feruza Turan Sonmez, Fatih Guneysu, Hayati Kandis, Ayhan Saritas
No abstract text is available yet for this article.
August 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Uğur Canpolat, Nihan Bahadır, Levent Şahiner, Kudret Aytemir
Transvenous pacemaker or implantable cardioverter defibrillator (ICD) implantation procedures are usually performed under local anesthetic, and prilocaine is the most common agent to be used. The data regarding methemoglobinemia after cardiac device implantation are scarce. Thus, presently described is the case of a 47-year-old female patient with arrhythmogenic right ventricular cardiomyopathy/dysplasia who underwent ICD implantation for secondary prophylaxis and developed cyanosis as a result of prilocaine-associated methemoglobinemia...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Thomas Grosse-Steffen, Malin Krämer, Benjamin Tuschy, Christel Weiss, Marc Sütterlin, Sebastian Berlit
PURPOSE: Aim of the study was to investigate the topical application of a eutectic mixture of lidocaine/prilocaine (EMLA(®)) cream after caesarean section (CS) and its effect on postoperative pain, time to mobilisation, and time to discharge. MATERIALS AND METHODS: A total of 189 pregnant women were enrolled; full data sets were available for 139 of them, who were prospectively randomised to receive either placebo (control group) or EMLA(®) cream (study group) on the CS lesion directly as well as 24 h after surgery...
October 2017: Archives of Gynecology and Obstetrics
M Heister, H M Häfner, H Breuninger, C Schulz, K Meier, L Kofler, C Spott, M Röcken, S M Schnabl, F C Eberle
BACKGROUND: Early paediatric dermatosurgery reveals excellent cosmetic results due to high skin-elasticity and pronounced capacity to recover from trauma. Furthermore, the size of skin lesions increases during life proportionally to skin growth and therefore early removal is of major importance. Selected local anaesthetics like prilocaine can cause methaemoglobinemia. However, in contrast to general anaesthesia many other local anaesthetics do not bare any major risks for infants. OBJECTIVE: In this retrospective study, we analysed infants aged less than 7 months receiving tumescent local anaesthesia (TLA) followed by dermatosurgery at our department between 2005 and 2015...
July 6, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
George Latsios, Kostas Toutouzas, Alexios S Antonopoulos, Eleni Melidi, Andreas Synetos, Georgia Vogiatzi, Aggeliki Stasinopoulou, Kostas Tsioufis, Eleftherios Tsiamis, Dimitrios Tousoulis
OBJECTIVE: The aim of the present study was to assess the level of access site pain in patients undergoing transradial coronary catheterization by using topical application of an anesthetic ointment (lidocaine/prilocaine-AO) compared to standard local anesthesia (LA) by means of injectable lidocaine. METHODS: We prospectively studied 444 patients undergoing elective trans-radial coronary angiography. The quality of analgesia was assessed using a visual analogue scale (VAS) immediately after the puncture and 30 min after the removal of the sheath...
August 2017: Journal of Interventional Cardiology
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