Effect of thermo mechanical stimulation duringlocal anesthesia in pediatric dentistry: a pilot randomized clinical trial / Efeito de estimulação termomecânica durante anestesia local em odontopediatria: um ensaio clínico randomizado piloto

Objetivo: Avaliar a eficácia de um dispositivo de estimulação termomecânica (Buzzy®) em relação à dor, medo e ansiedade durante anestesia local em crianças. Materiais e métodos: Estudo realizado no período de maio de 2018 a julho de 2019, com crianças de 7 a 11 anos, sem experiência prévia envolvendo anestesia nos últimos 2 anos e que necessitassem de tratamento odontológico (extração, restauração ou endodontia) sob anestesia local em molares decíduos. A amostra foi randomizada em grupo controle, que recebeu anestesia convencional, e grupo intervenção, que recebeu anestesia com Buzzy®. Os níveis de ansiedade, medo e percepção de dor de ambos os grupos foram verificados por meio de: Venham Modified Picture Test (VPTM); frequência cardíaca; Escala Comportamental Venham; Faces Pain Scale ­ Revised (FPS-R) e Face, Legs, Activity, Cry, Consolability (FLACC). Resultados: A maioria das crianças (55%) apresentou baixa ansiedade antes e depois do tratamento (P<0,05). A aceitabilidade das crianças ao Buzzy® foi de 100% e a maioria (90%) gostaria de usar novamente. Discussão: O aparelho testado é uma ferramenta interessante para complementar as técnicas de manejo durante as consultas, tendo em vista a excelente aceitabilidade e interesse por parte dos pacientes e familiares. Conclusão: Este estudo demonstrou que o uso da estimulação termomecânica é viável na clínica odontológica, devido ao seu fácil uso e boa aceitabilidade no meio clínico, além de não apresentar riscos em seu uso.

Aim: To evaluate the effectiveness of a thermo mechanical stimulation device (Buzzy®) in relation to pain, fear and anxiety during local anesthesia in children. Materials and methods: Study carried out from May 2018 to July 2019, with children aged 7 to 11 years, without previous experience involving anesthesia in the last 2 years and who needed dental treatment (extraction, restoration or endodontic) under local anesthesia in deciduous molars. The sample was randomized into a control group, which received conventional anesthesia, and an intervention group, which received anesthesia with Buzzy®. The levels of anxiety, fear and pain perception of both groups were verified using: Come Modified Picture Test (VPTM); heart rate; Behavioral Scale Come; Faces Pain Scale ­ Revised (FPS-R) and Face, Legs, Activity, Cry, Consolability (FLACC). Results: Most children (55%) had low anxiety before and after treatment (P<0.05). The acceptability of the children to Buzzy® was 100% and the majority (90%) would like to use it again. Discussion: The tested device is an interesting tool to complement management techniques during consultations, in view of the excellent acceptability and interest on the part of patients and family members. Conclusion: This study demonstrated that the use of thermo mechanical stimulation is feasible in the dental clinic, due to its easy use and good acceptability in the clinical environment, in addition to not presenting risks in its use.

Radial Nerve Supracondylar Block Versus Fracture Hematoma Block. Comparison of Their Efficacy in Cases of Fractures of the Distal Third of the Radius / Bloqueio supracondilar de nervo radial versus bloqueio de hematoma de fratura. Comparativo de sua eficácia em casos de fraturas do terço distal do rádio

Abstract Objective The present study compares the analgesic efficacy of two techniques to perform non-surgical reduction: fracture hematoma block and radial nerve supracondylar block. Methods Forty patients with fractures of the distal third of the radius, who required reduction, were selected in a quasi-randomized clinical trial to receive one of the anesthetic techniques. All patients signed the informed consent form, except for those who did not wish to participate in the study, had neurological injury, had contraindication to the procedure in the emergency room, or with contraindication to the use of lidocaine. To measure analgesia, the numerical pain rate scale was used at four different moments: preblock, postblock, during reduction, and after reduction; then three differences were calculated: the first between before and after blocking; the second between during reduction and after blockade; and the third between before blocking and after reduction. Results The fracture hematoma and supracondylar block groups showed the following mean values, respectively: 3.90 (1-10) and 3.50 (-6-10) in difference 1; 4.35 (-5-10) and 5.00 (-3-10) in difference 2; and 4.65 (1-10) and 3.80 (-3-10) in difference 3. Conclusion Both techniques proved to be efficient for analgesia, with mild superiority of hematoma block, but without statistical significance.

Resumo Objetivo O estudo compara a eficácia analgésica de duas técnicas para realizar redução incruenta: o bloqueio de hematoma da fratura e o bloqueio supracondilar de nervo radial. Métodos Quarenta pacientes com fraturas do terço distal do rádio, que necessitassem redução, foram selecionados em um ensaio clínico quasi-randomizado, para receber uma das técnicas anestésicas. Todos os pacientes assinaram o termo de consentimento ou assentimento, com exceção daqueles que não desejassem participar do estudo, tivessem lesão neurológica, com contraindicação ao procedimento na sala de emergências, ou com contraindicação ao uso da lidocaína. Para aferir a analgesia foi utilizada a escala numérica da dor em quatro momentos distintos: pré-bloqueio, pós-bloqueio, durante a redução e após a redução; em seguida, foram calculadas três diferenças: a primeira entre antes e após o bloqueio; a segunda entre durante a redução e após o bloqueio; e a terceira entre antes do bloqueio e após a redução. Resultados Os grupos do bloqueio de hematoma de fratura e bloqueio supracondilar apresentaram respectivamente os seguintes valores médios: 3.90 (1-10) e 3.50 (-6-10) na diferença 1; 4.35 (-5-10) e 5.00 (-3-10) na diferença 2; e 4.65 (1-10) e 3.80 (-3-10) na diferença 3. Conclusão As duas técnicas se provaram eficientes para analgesia, com discreta superioridade do bloqueio de hematoma, mas sem significância estatística.

Ultrasound-Guided WALANT Technique in Carpal Tunnel Decompression Surgery* / Técnica WALANT guiada por ultrassom na cirurgia de descompressão do túnel do carpo

Abstract Carpal tunnel syndrome (CTS) is the most common compressive neuropathy in the human body. Its symptoms result from compression of the median nerve in the carpus. The treatment can be conservative, with medications and/or infiltrations that alleviate the symptoms, or surgical, which is more effective, with decompression of the median nerve by surgical section of the flexor retinaculum of the carpus. The anesthetic technique varies according to the anesthesia method: sedation, venous locoregional anesthesia and, more recently, wide-awake local anesthesia no tourniquet (WALANT), which can be performed by the surgeons themselves. The WALANT technique uses local anesthesia with a vasoconstrictor, and does not require the use of a tourniquet on the upper limb nor sedation. The median nerve block in ultrasound-guided WALANT provides better accuracy to the technique, with greater patient safety; in the present article, its use in the performance of carpal tunnel decompression is described, and the literature is reviewed.

Resumo A síndrome do túnel do carpo (STC) é a neuropatía compressiva mais comum do corpo humano. Seus sintomas decorrem da compressão do nervo mediano no carpo. O tratamento pode ser incruento, com medicações e/ou infiltrações que amenizam os sintomas, ou cruento, mais eficaz, com a descompressão do nervo mediano pela seção cirúrgicadoretináculodos flexores do carpo. A técnica anestésica varia de acordo com o serviço de anestesia: sedação, anestesia locorregional venosa e, mais recentemente, a anestesia local com o paciente acordado e sem torniquete (wide-awake local anesthesia no tourniquet, WALANT), que pode ser realizada pelo próprio cirurgião. Por utilizar anestesia local com vasoconstritor, essa técnica dispensa o uso de torniquete no membro superior e a necessidade de sedação. O bloqueio do nervo mediano na WALANT guiada por ultrassonografiaconfere melhor precisão àtécnica,e mais segurança ao paciente, e, neste artigo seu uso na realização da descompressão do túnel do carpo é descrito, e a literatura, revisada.

Buffered 2% articaine in buccal infiltration of mandibular molars: a randomized triple-blind clinical trial

Abstract This crossover study aimed to compare the anesthetic effects of buffered 2% articaine with 1:200,000 epinephrine with that of non-buffered 4% articaine with 1:200,000 epinephrine. Forty-seven volunteers were administered two doses of anesthesia in the buccal region of the second mandibular molars in two sessions using 1.8 mL of different local anesthetic solutions. The onset time and duration of pulp anesthesia, soft tissue pressure pain threshold, and the score of pain on puncture and burning during injection were evaluated. The operator, volunteers, and statistician were blinded. There were no significant differences in the parameters: onset of soft tissue anesthesia (p = 0.80), duration of soft tissue anesthesia (p = 0.10), onset of pulpal anesthesia in the second (p = 0.28) and first molars (p = 0.45), duration of pulp anesthesia of the second (p = 0.60) and first molars (p = 0.30), pain during puncture (p = 0.82) and injection (p = 0.80). No significant adverse events were observed. Buffered 2% articaine with 1:200,000 epinephrine did not differ from non-buffered 4% articaine with 1:200,000 epinephrine considering anesthetic success, safety, onset, duration of anesthesia, and pain on injection.

A prospective, comparative study of the analgesic effect between the WALANT technique and local anesthesia associated with sedation for hand surgery

Purpose: The primary objective of this study was to compare the WALANT (wide awake, local anesthesia, no tourniquet) technique with local anesthesia associated with sedation in relation to pain intensity for minor hand surgical procedures. The secondary objective was to evaluate the need for analgesic complementation. Methods: A prospective, randomized, comparative, and clinical study was carried out. The sample size in each group was determined after statistical evaluation of the results of a pilot project. The participants were allocated to one of two groups; those in group 1 were submitted to the WALANT technique, and those in group 2, to local anesthesia associated with sedation, for elective surgery. The surgical procedures were carpal tunnel syndrome, De Quervain's tenosynovitis, synovial cyst, finger cyst, and trigger finger. Pain intensity, need for complementation and evolution to complex regional pain syndrome were evaluated. Results: There was no difference between groups in pain intensity after WALANT and need for intraoperative complementation. There was no significant difference in the amount of opioid applied postoperatively between the groups. There was no difference between groups regarding comfort during surgery. There was no difference in adverse effects and complications between the groups. Hematoma was the most frequent adverse event. No severe adverse events were observed. Conclusions: The WALANT technique promoted an analgesic effect similar to that of local anesthesia associated with sedation, without increasing adverse effects.

Lingual supplementation may not be required after articaine buccal infiltration anesthesia for lower molar extraction: a clinical comparative study / La suplementación lingual opcional después de la anestesia por infiltración bucal con articaína para la extracción de molares inferiores: un estudio clínico comparativo

Purpose: To investigate the anesthetic effectiveness of buccal infiltration (BI) versus buccal plus lingual infiltration (BI+LI) of 4% articaine for intra-alveolar extraction of erupted mandibular molar teeth. Material and Methods: Eighty patients were included in this prospective clinical study. They were randomly divided into 1 of 2 equal groups: the 1st group received BI of 4% articaine 1.8 ml and LI of 0.5 ml, while the 2nd group received 4% articaine 1.8 ml BI plus 0.5 ml LI of normal saline. Another 1.8 ml articaine BI was given if initial anesthesia was inadequate. Outcome variables included pain, which was rated by patients at 3 intervals using visual analogue scale, and lingual anesthesia and patients' satisfaction which were measured using 5-score verbal rating scale. Data analyses used were descriptive statistics, t test, χ2 test, and Pearson's correlation coefficient. P-value value less than 0.05 was considered significant. Results: There were 46 females and 34 males and the mean age was 35.3 years. All outcome variables were comparable between the two study groups (p˃0.05). Anesthesia was successful in 78% and 88% of cases in the (BI) and (BI+LI) groups respectively with no significant difference (p=0.2392). The mean articaine volume used was 2.5 ml and 2.87 ml respectively without significant difference (p=0.090). Conclusion: The anesthetic efficacy of (BI) alone and (BI+LI) of 4% articaine was comparable. When given in an adequate dose, articaine (BI) alone could be justified as an anesthetic option for the intra-alveolar extraction of mandibular molar teeth.

Objetivo: Investigar la efectividad anestésica de la infiltración bucal (BI) versus la infiltración bucal más lingual (BI+LI) de articaína al 4% para la extracción intraalveolar de molares mandibulares erupcionados. Material y Métodos: Ochenta pacientes fueron incluidos en este estudio clínico prospectivo. Se dividieron aleatoriamente en 1 de 2 grupos iguales: el primer grupo recibió BI de articaína al 4% 1,8 ml y LI de 0,5 ml, mientras que el segundo grupo recibió articaína al 4% 1,8 ml BI más 0,5 ml LI de solución salina normal. Se administró otro BI de articaína de 1,8 ml si la anestesia inicial era inadecuada. Las variables de resultado incluyeron el dolor, que los pacientes calificaron en 3 intervalos mediante una escala analógica visual, y la anestesia lingual y la satisfacción de los pacientes, que se midieron mediante una escala de calificación verbal de 5 puntos. Los análisis de datos utilizados fueron estadística descriptiva, prueba t, prueba χ2 y coeficiente de correlación de Pearson. Se consideró significativo el valor del valor de pinferior a 0,05. Resultados: Hubo 46 mujeres y 34 hombres y la edad media fue de 35,3 años. Todas las variables de resultado fueron comparables entre los dos grupos de estudio (p=0,05). La anestesia fue exitosa en el 78% y 88% de los casos en los grupos (BI) y (BI+LI) respectivamente sin diferencia significativa (p=0,2392). El volumen medio de articaína utilizado fue de 2,5 ml y 2,87 ml respectivamente sin diferencia significativa (p=0,090). Conclusión: La eficacia anestésica de (BI) solo y (BI+LI) de articaína al 4% fue comparable. Cuando se administra en una dosis adecuada, la articaína (BI) sola podría estar justificada para la extracción intraalveolar de molares mandibulares.

Application of 3D slicer plus Sina software for performing hematoma puncture and drainage after local anesthesia in elderly patients with intracerebral hemorrhage / 中华老年医学杂志

Objective:To explore the effect of minimally invasive hematoma puncture and drainage in the treatment of elderly patients with cerebral hemorrhage by using 3D slicer and Sina software to conduct 3D reconstruction and preoperative localization of intracerebral hematoma.Methods:A total of 74 elderly patients with a first-onset intracerebral hematoma aged ≥75 years, having surgical indications and stable vital signs were grouped into 3D slicer plus Sina software localization group(as group A, n=40)or CT localization group(as group B, n=34). Based on the localization, hematoma puncture and drainage were performed after local anesthesia.Preoperative preparation time, hematoma location, puncture success rate, postoperative hematoma clearance rate, postoperative re-bleeding rate and GCS score were statistically analyzed.Glasgow coma scale(GCS)scores were used in predicting the mortality.Results:The preoperative preparation time was significantly shorter in group A than in group B[(5.5±3.4)min vs.(8.5±2.7)min, t=3.337, P=0.001]. The success rate of hematoma puncture and drainage(90.0% and 70.6%, χ2=4.51, P=0.034)and postoperative hematoma clearance rate[(87.5±3.4)% and(80.3±2.7)%, t=10.10, P=0.000]were higher in group A than in group B. There were no significant differences in operative time, the accuracy of hematoma localization, re-bleeding rate and GCS score between the two groups( P>0.05). Conclusions:3D slicer plus Sina software can precisely locate the intracerebral hematoma, and minimally invasive hematoma puncture and drainage of intracerebral hematoma under local anesthesia were safe and effective in the treatment of elderly patients with intracerebral hemorrhage.

Effect of local infiltration of ropivacaine in gallbladder triangle on agitation and postoperative pain in patients undergoing laparoscopic cholecystectomy / 中国医师杂志

Objective:To study the effect of local infiltration of ropivacaine in gallbladder triangle on agitation and postoperative pain in patients undergoing laparoscopic cholecystectomy (LC).Methods:108 patients with LC who met the requirements of this study treated in Yunnan Cancer Hospital from March 2018 to March 2021 were randomly divided into two groups, 54 cases in each group. Both groups received routine LC under general anesthesia. The observation group received ropivacaine for local infiltration in the gallbladder triangle, and the control group received the same amount of normal saline for local infiltration in the gallbladder triangle. The anesthesia indexes, agitation during awakening and postoperative pain were compared between the two groups.Results:There was no significant difference in extubation, anesthesia and recovery time between the observation group and the control group (all P>0.05); The scores of static and dynamic visual analogue scale (VAS) in the two groups reached the highest value at 6 h after operation, and then decreased gradually, with significant differences between the two groups ( F=15.28, 4.26, 11.06, 3.21, all P<0.05). The dynamic and static VAS scores of the observation group were lower than those of the control group at the time of awakening, 6 h, 12 h and 24 h after operation, with statistically significant difference (all P<0.05). Compared with the control group, the Riker sedation agitation score (SAS) and the incidence of agitation in the observation group were significantly lower (all P<0.05), and the effective times of analgesic pump pressing 24 hours after operation were significantly less ( P<0.05); There was no significant difference in SpO 2 level between the observation group and the control group ( P>0.05); The levels of heart rate (HR) and mean arterial pressure (MAP) in the two groups were significantly higher than those before anesthesia, and the rising degree in the observation group was significantly lower than that in the control group (all P<0.05); The levels of norepinephrine (NE), C-reactive protein (CRP) and cortisol in the two groups were significantly higher than those before anesthesia, and the rising degree in the observation group was significantly lower than that in the control group (all P<0.05). Conclusions:Local infiltration of gallbladder triangle with ropivacaine during LC can reduce the degree of postoperative pain, the use of PCIA pump and the occurrence of agitation during awakening, so as to maintain hemodynamic stability.

Anesthetic strategy for endovascular treatment in patients with acute ischemic stroke due to large vessel occlusion / 国际脑血管病杂志

Endovascular treatment is a standard treatment regimen for patients with acute ischemic stroke caused by large vessel occlusion. The anesthetic strategy for patients with acute ischemic stroke undergoing endovascular treatment includes local anesthesia, conscious sedation, and general anesthesia. However, the optimal anesthetic strategy for patients with acute ischemic stroke undergoing endovascular treatment is controversial.

A Randomized Triple-Blind Clinical Trial of the Effect of Low-Level Laser Therapy on Infiltration Injection Pain in the Anterior Maxilla

Abstract Objective: To evaluate the level of pain experienced during infiltration anesthesia of the anterior maxilla following low-level laser therapy (LLLT) with 810-980 nm wavelengths. Material and Methods: In the current triple-blind clinical trial, 84 patients received a total of 168 infiltration anesthesia injections (1.8 mL of 2% lidocaine plus 1:100,000 epinephrine) in the anterior maxilla. Each patient received two injections into the buccal mucosa of the right and left central incisors with a two-week interval. One injection was performed after LLLT, while the other injection was administered conventionally without laser. The pain level was measured immediately after injection using a visual analog scale (VAS). Results: There was a significant difference in the pain level experienced with and without LLLT, such that the mean pain score following LLLT was significantly lower than that without LLLT (p<0.05). No significant difference was found in the pain level between laser and no laser groups in males, but the difference in this regard was significant in females (p<0.05) and female patients experienced a significantly lower level of pain following LLLT. Conclusion: The low-level laser therapy can be successfully used to decrease the level of pain experienced during infiltration anesthesia of the anterior maxilla (AU).

Evaluation of pain and opioid consumption in local preemptive anesthesia and the erector spine plane block in thoracoscopic surgery: A randomized clinical trial / Avaliação da dor e consumo de opioides em anestesia preemptiva local e do plano eretor da espinha em cirurgia torácica videotoracoscópica: Um ensaio clínico randomizado

ABSTRACT Objective: assess pain and opioid consumption in patients undergoing anesthetic techniques of spinal erector plane block and local anesthetic block in video-assisted thoracic surgery in the immediate postoperative period. Methods: ninety-two patients undergoing video assisted thoracic surgery were randomized to receive ESPB or BAL before starting the surgical procedure. Using the numerical verbal scale, the primary outcome assessed was the patient's pain in the immediate postoperative period (POI). The secondary outcome comprises the assessment of opioid consumption in the IPP by quantifying the medication used in an equianalgesic dose of morphine expressed in milligrams, in the immediate post-anesthetic recovery period, 6h, 12h, and 24h after surgery. Results: the EVN scores in the LBA and ESPB group in the POI had a mean of 0,8 (±1,89) vs 0,58 (±2,02) in the post-anesthesia care room (REPAI), 1,06 (±2,00) vs 1,30 (±2,30) in 6 hours of POI, 0,84 (±1,74) vs 1,19 (±2,01) within 12 hours of POI and 0,95 (±1,88) vs 1 ( ±1,66) within 24 hours of POI, all with p>0.05. Mean opioid consumption in the BAL and ESPB groups in the POI was 12.9 (± 10.4) mg vs 14.9 (±10.2) mg, respectively, with p = 0.416. Sixteen participants in the ESPB group and seventeen in the BAL group did not use opioids during the first 24 hours of the PO analyzed. Conclusion: local anesthesic block and ESP block techniques showed similar results in terms of low pain scores and opioid consumption during the period evaluated.

RESUMO Objetivo: avaliar a dor e o consumo de opioides dos pacientes submetidos a técnicas anestésicas de bloqueio do plano eretor da espinha (ESPB) e bloqueio anestésico local (LBA) em cirurgia torácica vídeo assistida no período pós-operatório imediato (POI). Métodos: noventa e dois pacientes submetidos a cirurgia torácica videotoracoscópica foram randomizados aleatoriamente para receberem ESPB ou LBA antes do início do procedimento cirúrgico. O desfecho primário avaliado foi a dor do paciente no POI através da escala verbal numérica. O desfecho secundário avaliou o consumo de opioides através da quantificação da medicação usada em dose equianalgésica de morfina expressa em miligramas, no período de recuperação pós-anestésica imediata, 6h, 12h e 24h após a cirurgia. Resultados: os escores da Escala Verbal Numérica de dor (EVN) no grupo LBA e ESPB no POI, respectivamente, tiveram média de 0,8 (±1,89) vs 0,58 (±2,02) na sala de recuperação pós anestesia (REPAI), 1,06 (±2,00) vs 1,30 (±2,30) em 6 horas do POI, 0,84 (±1,74) vs 1,19 (±2,01) em 12 horas do POI e 0,95 (±1,88) vs 1 ( ±1,66) em 24 horas do POI, todos com p>0,05. O consumo médio de opioides no grupo LBA e ESPB foi de 12,9 (±10,4) mg vs 14,9 (±10.2) mg, respectivamente, com p=0.416. Dezesseis participantes do grupo ESPB e dezessete do grupo LBA não utilizaram opioides durante as primeiras 24 horas do PO. Conclusões: as técnicas de bloqueio LBA e ESPB apresentaram resultados semelhantes em termos de baixos escores de dor e consumo de opioides durante o período avaliado.

WALANT versus intravenous regional anesthesia for carpal tunnel syndrome: a randomized clinical trial

ABSTRACT BACKGROUND: There are several anesthetic techniques for surgical treatment of carpal tunnel syndrome (CTS). Results from this surgery using the "wide awake local anesthesia no tourniquet" (WALANT) technique have been described. However, there is no conclusive evidence regarding the effectiveness of the WALANT technique, compared with the usual techniques. OBJECTIVE: To evaluate the effectiveness of the WALANT technique, compared with intravenous regional anesthesia (IVRA; Bier's block), for surgical treatment of CTS. DESIGN AND SETTING: Randomized clinical trial, conducted at Hospital Alvorada Moema and the Discipline of Hand Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil. METHODS: Seventy-eight patients were included. The primary outcome was measurement of perioperative pain through a visual analogue scale (VAS). The secondary outcomes were the Boston Questionnaire score, Hospital Anxiety and Depression Scale (HADS) score, need for use of analgesics, operating room times, remission of paresthesia, failures and complications. RESULTS: The WALANT technique (n = 40) proved to be superior to IVRA (n = 38), especially for controlling intraoperative pain (0.11 versus 3.7 cm; P < 0.001) and postoperative pain (0.6 versus 3.9 cm; P < 0.001). Patients spent more time in the operating room in the IVRA group (59.5 versus 46 minutes; P < 0.01) and needed to use more analgesics (10.8 versus 5.7 dipyrone tablets; P = 0.02). Five IVRA procedures failed (5 versus 0; P = 0.06). CONCLUSIONS: The WALANT technique is more effective than IVRA for CTS surgery.

Use of bufferized dental anesthetics in dental surgery / Uso de anestésicos dentários bufferizados em cirurgia dentária / Uso de anestésicos dentales buferizados en cirugía oral

Abstract Introduction and objective: The addition of epinephrine to the anesthetic solution reduces the pH of the solution to a range between 2.9 and 4.4. The acidity of the anesthetic may delay onset and contribute to injection pain. Objective: to determine the intensity of pain during a mandibular third molar surgery after using buffered 4% articaine with epinephrine 1:100000 in the inferior alveolar nerve block with buccal infiltration. Materials and methods: an observational and descriptive clinical study was performed. The buffered solution was alkalinized with 8.4% sodium bicarbonate with a ratio of 9:1, using a hand-mixing methodology, the sample were patients who required a mandibular third molar surgery. After standardizing the anesthetic technique, it was used the inferior alveolar nerve block followed by buccal infiltration. Results: 32 patients (20 female - 62.5% and 12 male - 37.5%), with an average age of 21.12 years (mean ± standard deviation : 21.12 ± 3.61) were admitted to the study. When assessing the pain puncture and during the injection, 94% of patients classified it as mild pain according to VAS. When evaluating the latency period, the average time was less than two minutes and the perioral soft tissue anesthesia was 62%. Only a small percentage of patients required complementary anes thesia. Conclusion: buffered 4% of articaine with epinephrine in the in ferior alveolar nerve block with buccal infiltration significantly decreased onset time, injection pain and need for complementary anesthesia in third molar surgery.

Resumo Introdução e objetivo: A adição de adrenalina à solução anestésica reduz o pH da solução para uma faixa entre 2,9 e 4,4. A acidez do anestésico pode atrasar o início e contribuir para a dor da injeção. Determinar a inten sidade da dor durante uma cirurgia dos terceiros molares inferiores após o uso de articaína tamponada a 4% com adrenalina 1: 100000 no bloqueio do nervo alveolar inferior com infiltração bucal. Materiais e métodos: foi realizado um estudo clínico observacional e descritivo. A solução tamponada foi al calinizada com bicarbonato de sódio a 8,4% com uma proporção de 9: 1, utilizando uma metodologia de mistura manual; a amostra era de pacientes que necessitaram de uma cirurgia de terceiros molares inferiores. Após padronização da técnica anes tésica foi utilizada bloqueio do nervo alveolar inferior seguido de infiltração bucal. Resultados: 32 pacientes (20 mulheres - 62,5% e 12 homens - 37,5%), com idade média de 21,12 anos (média ± desvio padrão : 21,12 ± 3,61) foram admitidos no estudo. Ao avaliar a punção dolorosa e durante a injeção, 94% dos pacientes a classificaram como dor leve de acordo com a EVA. Ao avaliar o período de latência, o tempo médio foi inferior a dois minutos e a anestesia perioral dos tecidos moles foi de 62%. Apenas uma pequena porcentagem de pacientes necessitou de anestesia complementar. Conclusão: tamponar 4% de articaína com epinefrina no bloqueio do nervo alveolar inferior com infiltração bucal diminuiu significativamente o tempo de início, a dor da injeção e a necessidade de anestesia complementar em cirurgia de terceiros molares.

Resumen Introducción y objetivo: la adición de epinefrina a la solución anestésica reduce el pH en un rango entre 2.9 y 4.4. La acidez del anestésico puede retrasar el inicio del efecto anestésico y contribuir al dolor durante la inyección de la solución. deter minar la intensidad del dolor durante la cirugía de terceros molares mandibulares después de usar articaína al 4% con epinefrina 1:100000 buferizada, en el bloqueo del nervio alveolar inferior con infiltración bucal. Materiales y métodos: se realizó un estudio clínico observacional y descriptivo. La solución buferizada se alcalinizó con bicarbonato de sodio al 8,4% en una relación de 9:1, utilizando una técnica de mezcla manual, la muestra se obtuvo de pacientes que requerían cirugía del tercer molar mandibular. Después de estandarizar la técnica anestésica fue utilizado un bloqueo del nervio alveolar inferior seguido de una infiltración bucal. Resultados: 32 pacientes (20 mujeres - 62,5% y 12 hombres - 37,5%), con una edad promedio de 21.12 años (media ± desviación estándar : 21.12 ± 3.61) ingresaron al es tudio. Al evaluar el dolor durante la punción y durante la inyección de la solución anestésica, el 94% de los pacientes lo clasificaron como dolor leve según la EVA. Al evaluar el período de latencia, el tiempo promedio fue inferior a dos minutos y la anestesia perioral de tejidos blandos fue del 62%. Solo un pequeño porcentaje de pacientes requirió anestesia complementaria. Conclusión: El uso de 4% de articaína con epinefrina buferizada, en el bloqueo del nervio alveolar inferior con infiltración bucal disminuyó significativamente el tiempo de inicio, el dolor durante la inyección y la necesidad de anestesia complementaria en la cirugía de terceros molares.

Cirugía de mano con anestesia local con técnica WALANT. Experiencia con una serie de casos / Hand surgery with local anesthesia with WALANT technique. Experience with a cases series

Resumen Introducción: Los procedimientos en cirugía de mano requieren el uso de torniquete para evitar el sangrado y, generalmente, utilizan sedación por anestesiología para controlar el dolor e incomodidad del torniquete. Hace una década se viene usando en cirugía de mano anestesia local sin torniquete ni sedación, como una opción segura y eficiente para las intervenciones quirúrgicas; esta técnica es conocida como WALANT (en inglés). El objetivo del trabajo es evaluar una serie prospectiva de pacientes intervenidos con técnica de WALANT en cirugía de mano. Métodos: Es una serie de casos que caracteriza el desempeño de una técnica anestésica local para procedimientos en cirugía de mano sin sedación y sin torniquete. Se evaluaron tiempo de cirugía, dolor intra- y posoperatorio y nivel de satisfacción. Este trabajo es aceptado por el comité de ética. Resultados: Se operaron 96 pacientes, 73 fueron cirugías de partes blandas y 23 de partes óseas. 92 pacientes (96 %) refirieron estar satisfechos y sin dolor posoperatorio. En 4 casos fue necesaria sedación intraoperatoria. Ningún paciente requirió torniquete. No fue necesario usar volúmenes mayores a 40 ml, sin embargo, estos varían según el tipo de intervención. Conclusiones: Este estudio muestra que la técnica funciona muy bien, y es de gran utilidad en cirugías de tendones, donde se requiere que el paciente esté despierto para evaluar el funcionamiento intraoperatorio. Los costos de cirugía son más baratos y es una técnica reproducible, con un desempeño satisfactorio.

Abstract Introduction: Procedures in hand surgery require tourniquet use to control bleeding and generally sedation by anesthesiology to manage the pain and discomfort of the tourniquet. A decade ago, local anesthesia without tourniquet or sedation was used in hand surgery as a safe and efficient option for surgical interventions, known as WALANT (Wide Awake Local Anesthesia with No Tournique) technique. The aim of the study is to evaluate a prospective series of patients who have undergone surgery with the WALANT technique in hand surgery. Methods: Consecutive series of cases that show the performance of a local anesthetic technique for procedures in hand surgery without sedation and without tourniquet. Surgery time, intra and postoperative pain and satisfaction level were evaluated. This study was accepted by the ethics committee. Results: Ninety-six patients underwent surgery, seventy-three were soft tissue surgery and twenty-three bone surgery. Ninety-two patients (96%) reported being satisfied and without postoperative pain. In four cases, intraoperative sedation was necessary. No patient required a tourniquet. It was not necessary to use volumes greater than 40 ml; however, these vary according to the type of intervention. Conclusions: This study shows that the technique works very well and is very useful in tendon surgeries, where the patient is required to be awake to evaluate intraoperative functioning. Surgery costs are cheaper, and it is a reproducible technique with satisfactory performance.

Survival of mother and infant following treatment of acute Stanford type B aortic dissection with endovascular repair under local anesthesia in second trimester: a case report / 中华围产医学杂志

We report the diagnosis and treatment of a pregnant woman with acute Stanford type B aortic dissection in the second trimester who underwent thoracic endovascular aortic repair under local anesthesia and later gave birth to a live neonate. The patient was admitted due to acute upper back pain at 27 weeks of gestation, who was diagnosed as acute Stanford type B aortic dissection. Thoracic endovascular aneurysm repair was performed with low radiation dose under local anesthesia. A live neonate was born through cesarean section at 33 +6 gestational weeks due to the flat baseline of the fetal heart monitor, with a birth weight of 1 840 g and Apgar score of 9 at 1 min. The neonate was discharged after a 20-day treatment. During the follow-up of 12 months, the infant grew and developed well, and covered stent was well placed in the mother without leakage in the distal or proximal ends of the stent or any other complications.

Clinical characteristics of radial head fracture combined with capitulum cartilage injury / 中华创伤骨科杂志

Objective:To characterize the radial head fracture combined with capitulum cartilage injury (CCI).Methods:The data of 110 patients were analyzed retrospectively who had been treated for radial head fracture at Department of Orthopaedics, The Ninth People's Hospital of Wuxi from January 2011 to May 2020. They were 62 males and 48 females, aged from 17 to 74 years (average, 44.10 years). According to the finding of intraoperative exploration whether CCI was complicated or not, they were assigned into a CCI group and a CCI-free group. The diagnosis, location, size, type, operation method and postoperative recovery of CCI were observed in CCI group. The 2 groups were compared in terms of preoperative general data, range of forearm motion before and after operation and functional recovery of the limb by Mayo elbow performance score (MEPS).Results:CCI was complicated in 25 cases (type Ⅰ in 7 ones, type Ⅱ in 12 ones and type Ⅲ in 6 ones), involving all Mason types of radial head fracture, and located at the lateral capitellum in 13 cases, at the posterolateral capitellum in 9 cases and at the anterolateral capitellum in 3 cases. CCI was diagnosed before operation in 13 cases by physical examination after local anesthesia and imaging examination with a rate of 48% (12/25) for missed diagnosis. The preoperative flexion and extension (61.8°±13.7°) and rotation (60.0°±24.2°) in CCI group were significantly less than those in CCI-free group (77.7°±23.0° and 79.9°±21.9°) ( P<0.05); the Mason types of radial head fracture in CCI group were significantly more serious than those in CCI-free group ( P<0.05). There was no significant difference between the 2 groups in age, gender, combined injury, treatment of radial head fracture, follow-up time, range of forearm motion at the last follow-up or MEPS score ( P>0.05). Conclusions:CCI was complicated in 22.73%(25/110) of the radial head fractures in this cohort and found in all Mason types of radial head fracture, and mostly located at the lateral and posterolateral capitellum. CCI is likely to be missed by imaging examination. In patients with mild radial head fracture and suspected CCI, positive physical examination after local anesthesia is valuable for diagnosis of CCI complication and operative indication. Care should be taken to detect CCI complication by intraoperative exploration in surgery of radial head fracture.

Feasibility study on local infiltration anesthesia for postoperative analgesia in patients with hallux valgus / 中国骨伤

OBJECTIVE@#To evaluate the clinical efficacy of local infiltration anesthesia of ropivacaine combined with compound betamethasone for postoperative analgesia in patients with hallux valgus.@*METHODS@#From September 2019 to December 2020, 48 patients with hallux valgus were treated surgically. According to different postoperative analgesia methods, the patients were divided into combined local infiltration group and intravenous analgesia pump group. There were 24 cases, in the combined local infiltration group including 2 males and 22 females;the age ranged from 21 to 78 years old, with an average of (58.3±7.7) years old;soft tissue release and chevron osteotomy were performed in 15 cases and metatarsophalangeal joint fusion in 9 cases;immediately after operation, 20 ml of ropivacaine combined with compound betamethasone mixed diluent was used for local infiltration anesthesia once. There were 24 patients in intravenous analgesia pump group, including 3 males and 21 females;the age ranged from 23 to 81 years old, with an average of(56.8±8.3) years old;soft tissue release and Chevron osteotomy were performed in 17 cases and metatarsophalangeal joint fusion in 7 cases;immediately after operation, intravenous analgesia pump was used for analgesia. The basic flow was 2 ml / h;the self control dose was 0.5 ml;and the locking time was 15 min. Visual analogue scale (VAS) was recorded at 12, 24, 48 and 72 hours after operation;and the VAS was recorded at 24 hours after operation. The occurrence of adverse drug reactions at 0 to 12 hours, 12 to 24 hours and 24 to 48 hours after operation were recorded;and the healing of incision was recorded.@*RESULTS@#All patients were followed up, and the duration ranged from 14 to 17 days, with a mean of (14.60±0.92) days. There was significantdifference in VAS at 12, 24 and 48 hours between the combined local infiltration group and the intravenous analgesia pump group(@*CONCLUSION@#Compared with intravenous analgesia pump group, ropivacaine combined with compound betamethasone can significantly reduce postoperative wound pain without increasing adverse drug reactions, and does not increase wound infection.

Intraoperative incision combined with local anesthesia to improve postoperative pain after laparoscopic live donor nephrectomy / 国际外科学杂志

Objective:To evaluate the effect of intraoperative incision combined with local anesthesia in improving postoperative pain after retroperitoneal laparoscopic living donor nephrectomy.Methods:Using retrospective research methods, 28 donors who underwent hand-assisted retroperitoneal laparoscopic living donor nephrectomy at the Beijing Friendship Hospital, Capital Medical University from January 2018 to December 2020 were selected as the research group. Before the wound was sutured during the operation use 0.2% ropivacaine 20 mL+ 5 mg dexamethasone to block the transverse abdominis fascia and subcutaneously for infiltration anesthesia. The other 1∶1 matched 28 donors who had the same operation method but used on-demand systemic opioid analgesia after the operation as the control group. The demographic indicators (age, gender, body mass index, length of donor kidney), intraoperative conditions (intraoperative blood loss, operation time, warm ischemia time), 2, 12, 24, and 48 hours pain visual analogue scales(VAS) after operation were compared between the two groups of patients, postoperative systemic opioid demand rate, postoperative exhaust time, time to return to the ground, complication rate (postoperative bleeding, lung infection, lymphatic fistula, wound infection, intestinal obstruction), postoperative length of hospitalization and other information. Measurement data were expressed as mean±standard deviation ( Mean± SD), and independent sample t-test was used for comparison between groups; Chi-square test or Fisher exact probability method was used for comparison of count data between groups. Results:The pain VAS of the donors in the research group were significantly lower than those in the control group at 2 h, 12 h, 24 h, and 48 h after surgery (2 h: 1.6±1.0 vs 3.9±1.1; 12 h: 1.9±0.7 vs 3.1±1.0; 24 h: 1.6±0.5 vs 2.9±0.8; 48 h: 1.2±0.5 vs 2.3±0.8; P<0.05). The donors in the research group postoperative morphine requirement rate was also significantly lower than that of the control group (0 vs 21.4%), and the postoperative recovery time was significantly earlier than that of the control group [(25.7±4.5) h vs (30.6±6.6) h], the difference was statistically significant ( P<0.05). Lymphatic fistula was the main postoperative complication. There was no statistically significant difference between the research group and the control group (14.3% vs 25.0%) ( P>0.05). Conclusion:Intraoperative incision transversus abdominis fascia and subcutaneous combined local block anesthesia can effectively reduce the pain after laparoscopic donor nephrectomy, reduce the use of opioids, promote early postoperative activities of the donor, and will not increase postoperative complications incidence rate.

The effect of local anesthetic solution volume applied in retrobulbar block in cataract surgery on the duration of anesthesia and patient comfort / Efeito do volume da solução anestésica local aplicada no bloqueio retrobulbar na cirurgia de catarata na duração da anestesia e no conforto do paciente

Abstract Objective: To compare the use of 2 different local anesthetic solution (LAS) volumes of 1.5 mL and 3 mL in retrobulbar block in patients undergoing cataract surgery in terms of anesthesia, akinesia, and pain levels. Methods: 80 patients between 18-90 years old, ASA I-II-III, were included in the study. For retrobulbar anesthesia, 1.5 mL LAS was applied to one group (Group LV), and 3 mL LAS to the other group (Group HV). The patients' ocular and eyelid motion scores were evaluated and recorded in the first, third, fifth, and tenth minutes after the block, and at 30-minute intervals for 4 hours post-operatively. One day later, the first hour of analgesic need and the number of times they took analgesic agents were asked and recorded. In addition, side effects were questioned and recorded. Results: The 39 (48.75%) patients were male and 41 (51.25%) patients were female. The criteria determined in terms of ocular motor score after the retrobulbar block (ocular motor score≤4) were met in 92.5% of patients in Group LV in all patients in Group HV, and the time to fulfill the determined criteria in Group HV was found to be significantly lower compared to Group LV (p=0.004). The movements of the eye in all direction except the inward movement recovered in Group LV in a significantly shorter time than Group HV (p=0.004). There was no significant difference in pain levels and side effects between the groups (p=0.34). Conclusions: After 1.5 mL LAS administration in retrobulbar block, adequate akinesia was not achieved in about one tenth of patients, but no significant difference was found between 1.5 mL and 3 mL LAS volumes in analgesic efficacy and side effects.

Resumo Objetivo: Comparar o uso de 2 volumes diferentes de solução anestésica local (LAS) de 1,5 mL e 3 mL no bloqueio retrobulbar em pacientes submetidos à cirurgia de catarata em termos de anestesia, acinesia e níveis de dor. Métodos: 80 pacientes entre 18 e 90 anos, ASA I-II-III, foram incluídos no estudo. Para anestesia retrobulbar, 1,5 mL de LAS foi aplicado em um grupo (Grupo LV) e 3 mL de LAS no outro grupo (Grupo HV). Os escores de movimento ocular e palpebral dos pacientes foram avaliados e registrados no primeiro, terceiro, quinto e décimo minutos após o bloqueio e em intervalos de 30 minutos por 4 horas no pós-operatório. Um dia depois, a primeira hora de necessidade de analgésico e o número de vezes que eles tomaram analgésicos foram solicitados e registrados. Além disso, os efeitos colaterais foram questionados e registrados. Resultados: 39 (48,75%) pacientes eram do sexo masculino e 41 (51,25%) do sexo feminino. Os critérios determinados em termos de escore motor ocular após o bloqueio retrobulbar (escore motor ocular≤4) foram atendidos em 92,5% dos pacientes do Grupo LV em todos os pacientes do Grupo HV, e foi encontrado o tempo para atender aos critérios determinados no Grupo HV ser significativamente menor em comparação ao grupo LV (p = 0,004). Os movimentos do olho em todas as direções, exceto o movimento interior, se recuperaram no Grupo LV em um tempo significativamente menor que o Grupo HV (p = 0,004). Não houve diferença significativa nos níveis de dor e efeitos colaterais entre os grupos (p = 0,34). Conclusões: Após administração de 1,5 mL de LAS no bloqueio retrobulbar, não foi alcançada acinesia adequada em cerca de um décimo dos pacientes, mas não foi encontrada diferença significativa entre os volumes de 1,5 mL e 3 mL de LAS na eficácia analgésica e efeitos colaterais.

Extra-buccal surgical access for canine removal included in mandibular symphysis: case report / Acesso cirúrgico extra-bucal para remoção de canino incluso em sínfise mandibular: relato de caso

ABSTRACT Included teeth are all the dental elements that arrive the normal time of its eruption, remains immersed within the tissues. Usually found when missing a tooth, or on routine radiographic examinations. In the presence of included teeth, it is necessary to define the best treatment approach, whether it is surgical, through exodontia, or by orthodontic tracings. Inclusive canines, in the symphysis region and near the base of the mandible, are rare and make the use of orthodontic traction techniques contraindicated. Presence of teeth in the intraosseous ectopic position can cause injuries, such as alveolodentary ankylosis, calcium metamorphosis of the pulp and aseptic pulp necrosis, among others. Anamnesis, physical examination (intra- and extraoral) and radiographic examinations such as panoramic, periapical, computed tomography, and occlusal radiographs should be performed to make the diagnosis adequate. In general, the success of the treatment depends on the age of the patient and the position of the canines at the time of the surgical procedure. The objective of this work is the extraction of a lower canine with extra-oral access in an outpatient clinical setting under local anesthesia.

RESUMO Dentes inclusos são todos os elementos dentários que chegada a época normal de seu irrompimento, permanece imerso no interior dos tecidos. Geralmente encontrados quando se observa ausência de algum dente, ou em exames radiográficos de rotina. Na presença de dentes inclusos, deve-se definir qual a melhor abordagem de tratamento, se é cirúrgica, através de exodontias, ou por tracionamentos ortodônticos. Caninos inclusos, em região de sínfise e próximos à base da mandíbula, são raros e fazem com que o uso de técnicas do tipo tracionamento ortodôntico sejam contra-indicadas. Presença de dentes em posição ectópica intraósseos podem causar injúrias, como anquilose alveolodentária, metamorfose cálcica da polpa e necrose pulpar asséptica, dentre outros. Para que o diagnóstico seja adequado, deve-se realizar, anamnese, exame físico (intra e extraoral) e exames radiográficos como panorâmicas, periapicais, tomografias computadorizadas e radiografias oclusais. Em geral, o sucesso do tratamento depende da idade do paciente e da posição dos caninos no momento do procedimento cirúrgico. O objetivo deste trabalho relata a extração de um canino inferior com acesso extra-oral em ambiente clínico ambulatorial sob anestesia local.