Evaluation of efficacy of computer-controlled local anaesthetic delivery system vs traditional injection system for minor pediatric surgical procedures in children

2020 ◽  
Author(s):  
M.M. Dempsy Chengappa ◽  
A.K. Prashanth
Keyword(s):  
Delivery System ◽  
Surgical Procedures ◽  
Local Anaesthetic ◽  
Injection System ◽  
Computer Controlled

Intraligamentary and Supraperiosteal Anesthesia Efficacy Using a Computer Controlled Delivery System in Mandibular Molars

2016 ◽  
Vol 40 (3) ◽  
pp. 193-199 ◽  
Author(s):  
Ülkü Şermet Elbay ◽  
Mesut Elbay ◽  
Emine Kaya ◽  
Ülkem Cilasun
Keyword(s):  
Postoperative Complications ◽  
Delivery System ◽  
Rating Scale ◽  
Needle Insertion ◽  
Controlled Delivery ◽  
Restorative Treatment ◽  
Randomized Controlled ◽  
Mandibular Molars ◽  
Computer Controlled ◽  
Pain Rating Scale

Purpose: The purpose of this study was to compare pain, efficacy and postoperative complications of anesthesia in first primary mandibular molars anesthetized with either intraligamentary (IL) or supraperiosteal (SP) anesthesia using a computer-controlled delivery system (CCDS). Study design: This randomized, controlled-crossover, blind clinical trial was conducted with 90 children requiring bilateral extraction, pulpotomy or restorative treatment of first mandibular primary molars. A CCDS was used to deliver IL anesthesia to 1 deciduous tooth and SP anesthesia to the contralateral tooth in each patient. Severity of pain and efficacy of anesthesia during the treatments were evaluated using the Wong-Baker Faces Pain Rating Scale (PRS) and comfort and side effects were assessed using post-injection and post-treatment questionnaires. Data were analyzed using χ2 and Mann-Whitney U tests. Results: According to PRS scores, pain levels during extraction were significantly higher with IL when compared to SP. Patients reported significantly less pain during needle insertion with SP when compared to IL; however, rates of postoperative complications were significantly higher with SP when compared to IL. Conclusions: CCDS-administered IL anesthesia and SP anesthesia were similarly effective when used during restorative treatment and pulpotomy of primary mandibular molars; however, SP was more effective than IL when used during extraction procedures.

Local anaesthetics: Theoretical aspects

2021 ◽  
pp. 175573802110351
Author(s):  
Gareth Allen ◽  
Rebecca Butler
Keyword(s):  
Primary Care ◽  
Adverse Effects ◽  
Surgical Procedures ◽  
Local Anaesthetic ◽  
Secondary Care ◽  
Local Anaesthetics ◽  
Clinical Use ◽  
Minor Surgical Procedures ◽  
Nervous Conduction

Local anaesthetics are frequently used in both primary and secondary care. These agents transiently reduce the nervous conduction of nociceptive signals, reducing sensations of pain. In primary care, local anaesthetics are often used for minor surgical procedures. However, there are other uses for these agents. It is important to understand the issues encountered when using local anaesthetics in primary care. This review will cover clinical use, relevant pharmacology and adverse effects of the different local anaesthetic preparations.

Basic principles of anaesthesia of small mammals: part 2

2020 ◽  
Vol 25 (3) ◽  
pp. 1-8
Author(s):  
Stefania Scarabelli ◽  
Giordano Nardini
Keyword(s):  
Health Status ◽  
General Anaesthesia ◽  
Surgical Procedures ◽  
Small Mammals ◽  
Local Anaesthetic ◽  
Perioperative Management ◽  
Anaesthetic Techniques ◽  
Depth Of Anaesthesia ◽  
Basic Principles ◽  
Volatile Agents

Several anaesthetic protocols are reported in the literature for small mammals; it is however fundamental that drugs used and perioperative management are based on each patient individually, considering several factors such as temperament, health status and the procedure to be performed. Alpha-2 agonists, benzodiazepines and opioids are the drugs most commonly used for sedation and premedication in small mammals. General anaesthesia can be induced with injectable agents, such as propofol and alfaxalone, but inhalant anaesthetics delivered by mask or in an induction chamber are still quite commonly used, particularly in smaller patients. Volatile agents are generally preferred for maintenance of anaesthesia, as easy control of the depth of anaesthesia is achievable. Endotracheal intubation is not always possible in these species, but practice and the use of an endoscope can facilitate the procedure. Analgesia should be provided for surgical procedures, and local anaesthetic techniques are warranted whenever possible.

Elimination of membrane compliance in undrained triaxial testing.II. Mitigation by injection compensation

1993 ◽  
Vol 30 (5) ◽  
pp. 739-746 ◽  
Author(s):  
P.G. Nicholson ◽  
R.B. Seed ◽  
H.A. Anwar
Keyword(s):  
Large Scale ◽  
Closed Loop ◽  
Injection System ◽  
Triaxial Testing ◽  
Granular Soils ◽  
Confining Stress ◽  
Controlled System ◽  
Computer Controlled ◽  
Large Scale Tests ◽  
Correction System

A computer-controlled injection-correction system has been developed to continuously and completely mitigate the adverse effects of membrane compliance for undrained testing of granular soils. The system was developed with the explicit idea that it could be quickly and easily adapted to most any up to date triaxial testing apparatus. A relationship between effective confining stress and volumetric compliance can be predetermined, as volumetric-compliance errors have been shown to be a direct and repeatable function of effective confining stresses for a given material. The predetermination of volumetric-compliance errors represents a suitable basis for control of injection–removal compensation for membrane compliance during undrained testing. A closed-loop computer-controlled system continuously monitors changes in sample effective confining stresses such that precalculated volumetric-compliance errors can be continuously offset by injecting or removing volumes of water equal to those errors throughout the duration of each test. The validity of the injection system was verified by comparison of the compensated tests to results of large-scale (300 mm diameter) tests of the same materials, as compliance effects for large-scale tests of this material were negligible. Key words : membrane, penetration, compliance, undrained testing, triaxial, compensation, liquefaction.

scholarly journals Pain and Efficacy Rating of a Microprocessor-Controlled Metered Injection System for Local Anaesthesia in Minor Hand Surgery

2011 ◽  
Vol 2011 ◽  
pp. 1-6
Author(s):  
André S. Nimigan ◽  
Bing Siang Gan
Keyword(s):  
Local Anaesthetic ◽  
Carpal Tunnel Release ◽  
Hand Surgery ◽  
Primary Outcome Measure ◽  
Injection System ◽  
Pain Experience ◽  
Injection Process ◽  
Surgical Pain ◽  
Lower Volume ◽  
Administration Methods

Purpose. Little attention has been given to syringe design and local anaesthetic administration methods. A microprocessor-controlled anaesthetic delivery device has become available that may minimize discomfort during injection. The purpose of this study was to document the pain experience associated with the use of this system and to compare it with use of a conventional syringe. Methods. A prospective, randomized clinical trial was designed. 40 patients undergoing carpal tunnel release were block randomized according to sex into a two groups: a traditional syringe group and a microprocessor-controlled device group. The primary outcome measure was surgical pain and local anaesthetic administration pain. Secondary outcomes included volume of anaesthetic used and injection time. Results. Analysis showed that equivalent anaesthesia was achieved in the microprocessor-controlled group despite using a significantly lower volume of local anaesthetic (P=.0002). This same group, however, has significantly longer injection times (P<.0001). Pain during the injection process or during surgery was not different between the two groups. Conclusions. This RCT comparing traditional and microprocessor controlled methods of administering local anaesthetic showed similar levels of discomfort in both groups. While the microprocessor-controlled group used less volume, the total time for the administration was significantly greater.

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