13,857 results match your criteria block duration


Kinematic and Acoustic Changes to Vowels and Diphthongs in Bite Block Speech.

J Speech Lang Hear Res 2021 May 12:1-8. Epub 2021 May 12.

Department of Communication Disorders, Brigham Young University, Provo, UT.

Purpose We examined the effect of bite block insertion (BBI) on lingual movements and formant frequencies in corner vowel and diphthong production in a sentence context. Method Twenty young adults produced the corner vowels (/u/, /ɑ/, /æ/, /i/) and the diphthong /ɑɪ/ in sentence contexts before and after BBI. An electromagnetic articulograph measured the movements of the tongue back, middle, and front. Read More

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Standard ECG in Brugada Syndrome as a Marker of Prognosis: From Risk Stratification to Pathophysiological Insights.

J Am Heart Assoc 2021 May 12:e020767. Epub 2021 May 12.

Cardiological Center University of Ferrara Italy.

Background The 12-lead ECG plays a key role in the diagnosis of Brugada syndrome (BrS). Since the spontaneous type 1 ECG pattern was first described, several other ECG signs have been linked to arrhythmic risk, but results are conflicting. Methods and Results We performed a systematic review to clarify the associations of these specific ECG signs with the risk of syncope, sudden death, or equivalents in patients with BrS. Read More

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Efficacy and safety of ultrasound-guided above-knee lateral approach for popliteal sciatic nerve block in surgeries below the knee: a randomized controlled trial.

Ann Palliat Med 2021 May 10. Epub 2021 May 10.

Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China.

Background: Ultrasound guidance has become a standard method for detection of nerve structures in regional anesthesia. During ultrasound-guided blockade, to identify anatomical structures is crucial but can be challenging. In clinical practice, we find a wide difference in the visibility score of the sciatic nerve (SN) through different approaches. Read More

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A randomised, non-inferiority study of chloroprocaine 2% and ropivacaine 0.75% in ultrasound-guided axillary block.

Sci Rep 2021 May 11;11(1):10035. Epub 2021 May 11.

Department of Anaesthesia, General Intensive Care Medicine and Pain Therapy, Medical University of Vienna, Vienna, Austria.

Chloroprocaine is a short-acting local anaesthetic with a rapid onset of action and an anaesthesia duration up to 60 min. In this pivotal study success rates, onset and remission of motor and sensory block and safety of chloroprocaine 2% was compared to ropivacaine 0.75% for short-duration distal upper limb surgery with successful block rates as primary outcome. Read More

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Efficacy of perineural versus intravenous dexmedetomidine as a peripheral nerve block adjunct: a systematic review.

Reg Anesth Pain Med 2021 May 11. Epub 2021 May 11.

Anesthesia, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada

Background: Dexmedetomidine is an effective local anesthetic adjunct for peripheral nerve blocks. The intravenous route for administering dexmedetomidine has been suggested to be equally effective to the perineural route; but comparative evidence is conflicting.

Objectives: This evidence-based review evaluated trials comparing the effects of intravenous to perineural dexmedetomidine on peripheral nerve block characteristics in adult surgical patients. Read More

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Association between Paravertebral Block and Pain Score at the Time of Hospital Discharge in Oncoplastic Breast Surgery: A Retrospective Cohort Study.

Plast Reconstr Surg 2021 May 10. Epub 2021 May 10.

From the Departments of Anesthesiology and Perioperative Medicine and Surgery, Tufts Medical Center; and Tufts University School of Medicine.

Background: Using nonopioid analgesics may decrease the risk of patients chronically using opioids postoperatively. The authors evaluated the relationship between paravertebral block and pain score at the time of hospital discharge.

Methods: The authors performed a retrospective cohort study of 89 women with American Society of Anesthesiologists Physical Status I to III undergoing oncoplastic breast surgery with 20 to 50 percent breast tissue removal and immediate contralateral reconstruction between August of 2015 and August of 2018. Read More

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Multimodal treatment including lumbar facet joint denervation for severe low back pain in patients with neuromuscular disorders.

Neurol Sci 2021 May 10. Epub 2021 May 10.

Department of Neurosurgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan.

Background: Severe low back pain (LBP) is an occasional complaint in patients with neuromuscular disorders (NMDs). Accurate diagnosis and treatment are required to manage LBP; however, the precise pathophysiology differs for each patient. This study aimed to evaluate the efficacy of lumbar facet joint denervation (FJD) and adjunctive modalities in the treatment of LBP in patients with NMD-associated kyphoscoliosis. Read More

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Visual tools for teaching machine learning in K-12: A ten-year systematic mapping.

Educ Inf Technol (Dordr) 2021 May 1:1-46. Epub 2021 May 1.

Department of Informatics and Statistics, Federal University of Santa Catarina, Florianópolis, Brazil.

Teaching Machine Learning in school helps students to be better prepared for a society rapidly changing due to the impact of Artificial Intelligence. This requires age-appropriate tools that allow students to develop a comprehensive understanding of Machine Learning in order to become creators of smart solutions. Following the trend of visual languages for introducing algorithms and programming in K-12, we present a ten-year systematic mapping of emerging visual tools that support the teaching of Machine Learning at this educational stage and analyze the tools concerning their educational characteristics, support for the development of ML models as well as their deployment and how the tools have been developed and evaluated. Read More

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Ultrasound-guided fine needle aspiration cytology of angiosarcoma of head and neck: a review of cytomorphologic features and discussion of diagnostic pitfall of aspiration cytology of vascular lesions.

Diagn Cytopathol 2021 May 8. Epub 2021 May 8.

Fine Needle Aspiration Biopsy Clinic, Department of Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai Hospital, Mount Sinai Beth Israel, New York, New York, USA.

Angiosarcoma is a rare malignant tumor of vascular origin (<2% of sarcomas). It represents <1% of all head-neck malignancies. A cytological diagnosis on fine needle aspiration (FNA) is extremely difficult. Read More

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Utility of Surveillance Ambulatory Rhythm Monitoring in the Pediatric Fontan Population.

Pediatr Cardiol 2021 May 7. Epub 2021 May 7.

Division of Cardiology, Children's Hospital Los Angeles, 4650 Sunset Blvd, MS #34, Los Angeles, CA, 90049, USA.

Our institution established a Fontan surveillance plan, which included ambulatory rhythm monitoring (ARM) at 6, 10, 13, 16 and 19 years old, for early detection of Fontan-associated complications. We conducted a retrospective chart review of Fontan patients followed at our institution 2014-2018 to determine the utility of surveillance ARMs. 139 ARMs from 83 patients were included. Read More

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Enhanced Recovery After Surgery strategies for elective craniotomy: a systematic review.

J Neurosurg 2021 May 7:1-25. Epub 2021 May 7.

1Machine Intelligence in Clinical Neuroscience (MICN) Laboratory, Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Switzerland.

Objective: Enhanced Recovery After Surgery (ERAS) has led to a paradigm shift in perioperative care through multimodal interventions. Still, ERAS remains a relatively new concept in neurosurgery, and there is no summary of evidence on ERAS applications in cranial neurosurgery.

Methods: The authors systematically reviewed the literature using the PubMed/MEDLINE, Embase, Scopus, and Cochrane Library databases for ERAS protocols and elements. Read More

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Percutaneous Cryoneurolysis for Acute Pain Management: Current Status and Future Prospects.

Expert Rev Med Devices 2021 May 7. Epub 2021 May 7.

University of California San Diego, Department of Anesthesiology, San Diego, California.

Introduction: Conventional nerve blocks utilize local anesthetic drugs to provide pain relief for hours or days following surgery or trauma. However, postoperative and trauma pain can last weeks or months. Ultrasound-guided percutaneous cryoneurolysis is an anesthetic modality that offers substantially longer pain relief compared to local anesthetic-based nerve blocks. Read More

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[Simultaneous Bilateral Femoral Osteotomies in Neurogenic Hip Instability: a Feasibility Study].

Acta Chir Orthop Traumatol Cech 2021 ;88(2):95-100

Oddělení ortopedie a traumatologie, AGEL Středomoravská nemocniční a.s., Nemocnice Přerov.

PURPOSE OF THE STUDY The study aimed to evaluate the intraoperative and early postoperative response to simultaneous bilateral femoral osteotomy usually accompanied by soft tissue release of hip joints, or open reduction, capsuloplasty, pelvic osteotomy or extraarticular shelf procedure. MATERIAL AND METHODS A bilateral surgery was performed in 16 children. Twelve children suffered from (spastic) cerebral palsy and there was one case of paralytic dislocation in a patient with myelomeningocele, while the remaining patients suffered from chromosome I aberrations, Dandy-Walker syndrome and merosin-deficient muscular dystrophy. Read More

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Pain Associated With Cervical Priming for First-Trimester Surgical Abortion: A Randomized Controlled Trial.

Obstet Gynecol 2021 May 6. Epub 2021 May 6.

Service de Gynecologie Obstetrique, Hôpital La Conception, and APHM, Hôpital de la Timone, Service Biostatistique et Technologies de l'Information et de la Communication, Marseille, France.

Objective: To compare the effect of cervical priming with mifepristone with that of misoprostol on pain perception during surgical induced abortion under paracervical block.

Methods: We conducted a randomized, single-blind, two-center study of women undergoing surgical induced abortion at less than 14 weeks of gestation under paracervical block. Participants were randomized to receive cervical priming with 200 mg of oral mifepristone 36 hours or 400 micrograms buccal misoprostol 3 hours before surgery. Read More

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Impaired left atrial strain in the presence of interatrial block in patients with type 2 diabetes mellitus.

Int J Cardiovasc Imaging 2021 May 6. Epub 2021 May 6.

Department of Cardiology, Adana Training and Research Hospital, University of Health Sciences, 01060, Adana, Turkey.

Type 2 diabetes mellitus (T2DM) is one of the most common chronic diseases, and is a risk factor for atrial cardiomyopathy. Interatrial block (IAB), as a predictor of AF, is correlated with the extent of LA fibrosis in the process of atrial cardiomyopathy. We have not encountered any study evaluating LA and LV functions with 3D-STE in the presence of IAB in the T2DM patients. Read More

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Mexiletine-like cellular electrophysiological effects of GS967 in canine ventricular myocardium.

Sci Rep 2021 May 5;11(1):9565. Epub 2021 May 5.

Department of Physiology, Faculty of Medicine, University of Debrecen, Nagyerdei krt 98, 4012, Debrecen, Hungary.

Enhancement of the late Na current (I) increases arrhythmia propensity in the heart, while suppression of the current is antiarrhythmic. GS967 is an agent considered as a selective blocker of I. In the present study, effects of GS967 on I and action potential (AP) morphology were studied in canine ventricular myocytes by using conventional voltage clamp, action potential voltage clamp and sharp microelectrode techniques. Read More

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A randomized clinical trial of single dose liposomal bupivacaine versus indwelling analgesic catheter in patients undergoing surgical stabilization of rib fractures.

J Trauma Acute Care Surg 2021 May 5. Epub 2021 May 5.

Department of Surgery, Denver Health & Hospital Authority Department of Anesthesiology, Denver Health & Hospital Authority Department of Pharmacy, Denver Health & Hospital Authority.

Introduction: Loco-regional analgesia (LRA) remains underutilized in patients with chest wall injuries. Surgical stabilization of rib fractures (SSRF) offers an opportunity to deliver surgeon-directed LRA under direct visualization at the site of surgical intervention. We hypothesized that a single-dose liposomal bupivacaine (LB) intercostal nerve block provides comparable analgesia to an indwelling, peripheral nerve plane analgesic catheter with continuous bupivacaine infusion (IC), each placed during SSRF. Read More

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Syntheses of Morpholine-Based Nucleotide Analogs for Hepatic siRNA Targeting and Stabilization.

J Med Chem 2021 May 5. Epub 2021 May 5.

Sanofi R&D, Industrial Park Hoechst, G838, Frankfurt am Main 65926, Germany.

A morpholine-based nucleotide analog was developed as a building block for hepatic siRNA targeting and stabilization. Attachment of an asialoglycoprotein-binding GalNAc ligand at the morpholine nitrogen was realized with different linkers. The obtained morpholino GalNAc scaffolds were coupled to the sense strand of a transthyretin-targeting siRNA and tested for their knockdown potency and . Read More

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Facilitators and barriers to medication adherence with adjuvant endocrine therapy in women with breast cancer: a structural equation modelling approach.

Breast Cancer Res Treat 2021 May 4. Epub 2021 May 4.

Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-03F, Singapore, 117549, Singapore.

Purpose: To identify a structure to explain the relationship between socio-clinico factors, necessity-concerns beliefs, and perceived barriers to adherence with adjuvant endocrine therapy (AET) amongst women with breast cancer.

Methods: Participants were 244 patients with early-stage breast cancer recruited from two tertiary hospitals from May 2015 to December 2018 who completed questionnaires on medication adherence (Simplified Medication Adherence Questionnaire), necessity-concerns beliefs (Beliefs about Medicine Questionnaire), and barriers to adherence (Adherence Starts with Knowledge Questionnaire). Socio-clinico variables were collected via interview and medical records review. Read More

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Continuous erector spinae plane block versus thoracic epidural analgesia in video-assisted thoracic surgery: a study protocol for a prospective randomized open label non-inferiority trial.

Trials 2021 May 4;22(1):321. Epub 2021 May 4.

Department of Anesthesiology and Pain Medicine, Catharina Hospital, Michelangelolaan 2, Eindhoven, 5623 EJ, The Netherlands.

Background: Thoracic epidural analgesia is considered the gold standard for pain relief in video-assisted thoracoscopic surgery. This neuraxial technique blocks pain sensation by injecting a local anesthetic agent in the epidural space near the spinal cord to block spinal nerve roots. Recently, the erector spinae plane block has been introduced as a practical alternative to the thoracic epidural. Read More

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The Clinical Efficacy of High-Voltage Long-Duration Pulsed Radiofrequency Treatment in Pudendal Neuralgia: A Retrospective Study.

Neuromodulation 2021 May 4. Epub 2021 May 4.

Department of Pain Medicine, the First Affiliated Hospital, China Medical University, Shenyang, China.

Background: Patients with pudendal neuralgia (PN) experience long-lasting chronic pain, hyperalgesia, and comorbid emotional disorders, such as depression and anxiety. Treatment via conventional pulsed radiofrequency (PRF) current carries a significantly high rate of failure.

Objective: To determine the safety and clinical efficacy of high-voltage, long-duration PRF application to the pudendal nerve in patients with PN. Read More

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Effects of greater occipital nerve block with local anesthetic and triamcinolone for treatment of medication overuse headache: an open-label, parallel, randomized, controlled clinical trial.

Neurol Sci 2021 May 4. Epub 2021 May 4.

Isfahan Neurosciences Research Center, Al Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.

Aim: There is a paucity of evidence and consensus on exactly how to carry out the detoxification process. To examine the effect of a greater occipital nerve block (GONB) in the detoxification process, we conducted an open-label, parallel, randomized, controlled clinical trial.

Materials And Methods: In order to conduct this study, 54 medication-overuse headache (MOH) patients were recruited and allocated randomly to group A (n = 27) or B (n = 27). Read More

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Efficacy of paravertebral block in "Fast-tracking" pediatric cardiac surgery - Experiences from a tertiary care center.

Ann Card Anaesth 2021 Jan-Mar;24(1):24-29

Department of Cardiothoracic Surgery, Christian Medical College and Hospital, Vellore, Tamil Nadu, India.

Introduction: Fast tracking plays a crucial role in reducing perioperative morbidity and financial burden by facilitating early extubation and discharge from hospital. Paravertebral block (PVB) is becoming more popular in paediatric surgeries as an alternative to epidural and caudal analgesia. There is scarcity of data regarding the efficacy and safety of PVB in paediatric cardiac surgery. Read More

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Comparison of ropivacaine plasma concentration after posterior Quadratus Lumborum Block in Cesarean Section with ropivacaine with epinephrine vs plane.

Minerva Anestesiol 2021 May 3. Epub 2021 May 3.

Department of Emergency, Anesthesiological and Reanimation Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.

Background: The posterior Quadratus Lumborum Block (pQLB) has been used in postoperative pain management after Cesarean Section (CS). However, clinicians have no data about pQLB safety in pregnants, at increased risk of local anesthetic systemic toxicity (LAST). The purpose of the present study was to explore the efficacy and the safety of adding epinephrine to ropivacaine for bilateral pQLB vs. Read More

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Effect of Amiodarone and Hypothermia on Arrhythmia Substrates During Resuscitation.

J Am Heart Assoc 2021 May 3:e016676. Epub 2021 May 3.

Department of Emergency Medicine and The Heart and Vascular Research Center MetroHealth Campus Case Western Reserve University Cleveland OH.

Background Amiodarone is administered during resuscitation, but its antiarrhythmic effects during targeted temperature management are unknown. The purpose of this study was to determine the effect of both therapeutic hypothermia and amiodarone on arrhythmia substrates during resuscitation from cardiac arrest. Methods and Results We utilized 2 complementary models: (1) In vitro no-flow global ischemia canine left ventricular transmural wedge preparation. Read More

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Ultrasound-guided quadratus lumborum block for surgical treatment of endometriosis: case report.

Braz J Anesthesiol 2021 Feb 6. Epub 2021 Feb 6.

Universidade Estadual de Campinas, Faculdade de Ciências Médicas, Departamento de Anestesiologia, Campinas, SP, Brazil. Electronic address:

Quadratus lumborum block (QLB) is a technique that is not widely applied for gynecological surgery. Endometriosis affects 10% of the female population and chronic pelvic pain is one of the most prevalent symptoms. Laparoscopic surgery for removal of endometriosis may present a long intra-operative duration and this technique might improve postoperative pain control. Read More

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February 2021

Evaluation of the Criteria to Distinguish Left Bundle Branch Pacing From Left Ventricular Septal Pacing.

JACC Clin Electrophysiol 2021 Apr 22. Epub 2021 Apr 22.

Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; The Key Lab of Cardiovascular Disease, Science and Technology of Wenzhou, Wenzhou, China. Electronic address:

Objectives: This study sought to assess the predictive value of the proposed electrocardiogram and intracardiac electrogram characteristics for confirmation of left bundle branch (LBB) capture.

Background: Previously proposed criteria to distinguish left bundle branch pacing (LBBP) and left ventricular septum (LVS) pacing (LVSP) have not been fully validated.

Methods: A His bundle pacing lead, an LBBP lead, and a multielectrode catheter at the LVS were placed. Read More

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Within-country age-based prioritisation, global allocation, and public health impact of a vaccine against SARS-CoV-2: A mathematical modelling analysis.

Vaccine 2021 Apr 8. Epub 2021 Apr 8.

MRC Centre for Global Infectious Disease Analysis, and the Abdul Latif Jameel Institute for Disease and Emergency Analytics, School of Public Health, Imperial College London, St Mary's Campus, Norfolk Place, London, W2 1PG, United Kingdom. Electronic address:

The worldwide endeavour to develop safe and effective COVID-19 vaccines has been extraordinary, and vaccination is now underway in many countries. However, the doses available in 2021 are likely to be limited. We extend a mathematical model of SARS-CoV-2 transmission across different country settings to evaluate the public health impact of potential vaccines using WHO-developed target product profiles. Read More

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Dexmedetomidine versus sufentanil as adjuvants to bupivacaine for brachial plexus block during upper extremity surgery: a randomized clinical trial.

Braz J Anesthesiol 2021 Apr 28. Epub 2021 Apr 28.

AJA University of Medical Sciences, Department of Anesthesiology, Tehran, Iran. Electronic address:

Background: Brachial plexus block (BPB) has been accepted as a reliable alternative for general anesthesia in upper limb surgeries. Adding adjuvant drugs like dexmedetomidine and sufentanil has been shown to have clinical and pharmacologic advantages. In this randomized parallel clinical trial, we aim to compare the effects of these two adjuvants for bupivacaine in BPB. Read More

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Predictive factors for anxiety during blood sampling and insertion of peripheral intravenous catheters in paediatric patients in Spain.

J Pediatr Nurs 2021 Apr 28. Epub 2021 Apr 28.

UPNA (University of Navarra), Pamplona, Navarra, Spain. Electronic address:

Introduction: Invasive procedures for diagnosis purposes such as venepuncture and peripheral venous catheter insertion are painful procedures that cause great stress for paediatric patients. The objective of this study is to find out the factors that have an impact on the level of anxiety experienced by children undertaken these procedures.

Design And Methods: Prospective study, 359 children between 2 and 15 years old were included, treated in a tertiary reference hospital in the region of Navarra (Spain). Read More

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