Wide-awake trapeziectomy: video detailing local anesthetic injection and surgery.
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ABSTRACT:
SUBMITTER: Farhangkhoee H
PROVIDER: S-EPMC3213250 | biostudies-other | 2011 Dec
REPOSITORIES: biostudies-other
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Wide-awake trapeziectomy: video detailing local anesthetic injection and surgery.
Farhangkhoee Hana H Lalonde Jan J Lalonde Donald H DH
Hand (New York, N.Y.) 20110924 4
<h4>Unlabelled</h4>The use of local anesthesia with epinephrine and no tourniquet/no sedation is becoming an excellent alternative for hand surgeries. This wide-awake approach is the most commonly used method of anesthesia for carpal tunnel release in Canada. The purpose of this paper is to provide a video detailing this technique for trapeziectomy for trapeziometacarpal joint osteoarthritis.<h4>Electronic supplementary material</h4>The online version of this article (doi:10.1007/s11552-011-9367 ...[more]
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Project description:In our experience, for all surgeries in the hand, the optimal epinephrine effect from local anesthesia-producing maximal vasoconstriction and visualization-is achieved by waiting significantly longer than the traditionally quoted 7 min from the time of injection.In this prospective comparative study, healthy patients undergoing unilateral carpal tunnel surgery waited either 7 min or roughly 30 min, between the time of injection of 1 % lidocaine with 1:100,000 epinephrine and the time of incision. A standardized incision was made through dermis and into the subcutaneous tissue followed by exactly 60 s of measuring the quantity of blood loss using sterile micropipettes.There was a statistically significant reduction in the mean quantity of bleeding in the group that waited roughly 30 min after injection and before incision compared to the group that waited only 7 min (95 % confidence intervals of 0.06?+?-0.03 ml/cm of incision, compared to 0.17?+?-0.08 ml/cm, respectively) (P?=?0.03).Waiting roughly 30 min after injection of local anesthesia with epinephrine as oppose to the traditionally taught 7 min, achieves an optimal epinephrine effect and vasoconstriction. In the hand, this will result in roughly a threefold reduction in bleeding-making wide awake local anesthesia without tourniquet (WALANT) possible. This knowledge has allowed our team to expand the hand procedures that we can offer using WALANT. The benefits of WALANT hand surgery include reduced cost and waste, improved patient safety, and the ability to perform active intraoperative movement examinations.
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Project description:Surgical castration of piglets is painful, but practiced routinely in commercial pig production. Procaine-based local anesthetics are used to mitigate piglet pain during castration in some countries. Yet, effects of the volume of anesthetic injected remain under-studied. The volume of drug administered may modulate the pain mitigating effect via variation in intra-testicular pressure at injection, potentially leading to pain or discomfort, as well as variation in the dose of active ingredient administered. The present study investigated the effects of injection with two volumes of a procaine-based local anesthetic, 0.3 vs. 0.5 mL per testis, on acute responses of 3-4 day old piglets. A total of 290 piglets were divided into 5 treatment groups: castration without anesthesia, castration after intra-testicular injection of 0.5 or 0.3 mL of drug per testis, and sham handling with one or two stays in a castration bench. Acute responses to drug injection, castration and sham handling were evaluated based on quantification of intra-procedural vocalizations and foreleg movements, as well as saliva cortisol concentrations before and after castration. Regardless of the volume, injection of anesthetic as well as castration led to significantly stronger responses than sham handling. Responses to the two drug volumes did not differ significantly, and responses to castration following injection of 0.3 mL did not differ from piglets castrated without anesthesia. All treatments, including sham handling, led to a significant increase in saliva cortisol, and no difference was found between anesthesia treatments and sham handling. Overall, the results suggested that injection of 0.5 mL led to better pain mitigation at castration compared to injection of 0.3 mL, but even when the local anesthetic was used, the combined procedures of injection and castration led to intra-procedural signs of pain and stress.
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Project description:PurposeIn this retrospective study, we evaluated the results of central slip reconstruction with a modified Snow's technique under wide-awake local anesthesia no tourniquet.MethodsBetween 2016 and 2019, 13 patients with boutonniere deformity were operated. All of the patients had boutonniere deformity with a passively correctable proximal interphalangeal joint. In 7 patients, temporary proximal interphalangeal joint transfixation with a K-wire to secure the repair was preferred. For the rest of the patients, postoperative follow-up was done with an orthosis. All patients were referred to a hand therapist for postoperative rehabilitation.ResultsThe mean interval between the injury time and the surgery was 55.7 days. After the surgery, the average proximal interphalangeal joint flexion was 104.8° and the loss of proximal interphalangeal joint extension was 6.15°. The average distal interphalangeal flexion was 65.3°. Seven cases had excellent results, 4 patients had good results, and 2 patients had fair results.ConclusionsOur study demonstrated that with a modified Snow technique, encouraging results can be achieved for neglected central slip injuries in which primary repair is impossible. Surgery under wide-awake local anesthesia no tourniquet enables the surgeon to check the stability of the repair, and early active motion with relative motion flexion orthoses can be started with confidence.Type of study/level of evidenceTherapeutic IV.
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Project description:Background: General or regional anesthesia is predominantly used for anorectal surgery, however in the recent years more attention was drawn in the use of local anesthesia for anorectal surgery. In this study we present the technique and results of the use of local perianal anesthetic infiltration for minor anorectal operations. Methods: In this cohort study patients undergoing surgery for hemorrhoids, anal fissures and low anal fistulas were included. Posterior perineal block was induced with a mixture containing 0.125% bupivacaine and 0.5% lidocaine. All patients were followed up at 30 days either by a post-operative visit or a telephone call and all post-operative complications over the post-operative 30-day period were registered. Results: One thousand and twenty-six consecutive patients were included in our study. For all patients' intraoperative analgesia was achieved after performing perianal anesthetic infiltration and no additional support from the anesthesia team was necessary in any of case. Complications were observed in 14 (1.4%). Urinary retention occurred in 5 (0.5%) cases. Six cases of bleeding occurred after hemorrhoidectomy (0.6%) and 1 (0.1%) after lateral internal sphincterotomy. Perianal abscess developed for two patients (0.2%). Conclusions: Local anesthesia using posterior perineal block technique is safe and effective for intraoperative analgesia in anorectal surgery, saving a substantial operation cost by avoiding the involvement of an anesthesia team and resulting in minimal incidence of urinary retention and other complications.
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