[Local anesthesia in radical lung surgery].
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PURPOSE: This study assessed the use of local anesthesia administered by dental hygienists who completed continuing education (CE) courses in Minnesota in 1996. The aims of the study were to: evaluate the use of local anesthesia by these participants; the level of effective injections; the value the dental hygienists placed on this skill; and to provide data in areas less studied, such as injection techniques utilized, and the incidence of complications. METHODS: A pretested, 34-item questionnaire; cover letter; and return self-addressed, stamped envelope were sent in 1997 to dental hygienists (N = 355) who completed a CE course in local anesthesia offered by Minnesota dental hygiene programs between January and September 1996. A reminder postcard was sent to nonrespondents two weeks after the initial return date. The survey assessed the administration experience of dental hygienists including implementation of this skill, frequency of administration, types of clients receiving local anesthesia, treatments requiring local anesthesia, choice of injection techniques, level of successful anesthesia, complications observed, and value to practice. Data were analyzed using JMP version 3.1, Pearson's chi-square and one-way ANOVA. RESULTS: The response rate was 77.7% (N = 273). Ninety-five percent of the dental hygienists who responded reported delegation of local anesthesia to them by employers. A majority of respondents (64%) implemented this new skill within one week following completion of course work. Dental hygienists in periodontal specialty practice provided local anesthesia to adult clients more frequently than those in general practice. Respondents used nerve block techniques more frequently than supraperiosteal or infiltration techniques. In general, respondents reported high success rates in achieving adequate anesthesia with a very low incidence of complications. Dental hygienists most frequently administered local anesthesia for root planing or debridement (92%). A majority of respondents also administered local anesthesia to adults and children who were treated by the dentist. The frequency of administrations was strongly related (P = 0.00) to value placed on this skill and positive outcomes to their practice. CONCLUSIONS: Dental hygienists who completed required CE course work in local anesthesia, provided safe, effective injections and reported this service to be of value to their practice. These data support the incorporation of local anesthesia into dental hygiene curricula to prepare future practitioners to provide this service to clients. Also, dental hygienists working in states not currently allowing this service, should consider these results when proposing change to their state practice acts.
Reliable visualization of arteries in hands, fingers, feet and toes largely depends on the tone of peripheral vessels. This can be lowered by general anesthesia but also under local anesthesia if local warming and oral Alcohol are added. Differential diagnosis between organic and functional disturbances of circulation is guaranteed in this way. Digital arteries can be well shown right down to the tips of fingers and toes.
PURPOSE: Local anesthesia for prostate brachytherapy was instituted at the Puget Sound Veterans Hospital in 1999, peforming the procedure in our own department without anesthesia personnel in attendance. MATERIALS AND METHODS: The patient is brought into the simulator suite in the radiation oncology department, an i.v. line is started, a cardiac monitor attached, and a urinary catheter is inserted. He is then placed in the lithotomy position, using stirrups attached to the simulator table. A 6-8 cm patch of perineal skin and subcutaneous tissue is anesthetized by local infiltration of 1% lidocaine. The transrectal ultrasound (TRUS) probe is then inserted and positioned to reproduce the planning images. A 3.0 inch 22-gauge spinal needle is used to inject lidocaine up to the prostatic apex, in a pattern around the periphery of the prostate. Once the pelvic floor and prostatic apex are anesthetized, a 7.0-inch, 22-gauge spinal needle is inserted through an 18-gauge 3 inch spinal needle into the peripheral planned needle tracks, monitored by TRUS. As the needles are advanced to the prostatic base, about 1.0 cc of lidocaine solution is injected in the intraprostatic track. A total of 200 to 500 mg of lidocaine is used. RESULTS: As of December 2000, more than 600 patients have received implants under local anesthesia at Seattle, WA. Patients tolerate brachytherapy under local anesthesia surprisingly well. Post-implant CT-defined target coverage has ranged from 80% to 95%, well within published criteria for technical adequacy. Patients' typical implant pain score is 3, on a scale of 0-10. After a series of patient acceptance quality studies, we have abandoned the routine use of sedation, and relied instead on local lidocaine infiltration alone. CONCLUSION: In addition to a high degree of patient satisfaction, performing implants under local anesthesia allows for phenomenal logistical efficiencies and cost advantages.
Because the effect of local anesthesia from a retrobulbar injection diminishes with time, local anesthesia during prolonged retinal surgery may be difficult. A simple, safe, and effective technique for administration of supplemental intraoperative local anesthesia during retinal detachment surgery is described. After a limbal peritomy is performed and the quadrants are dissected bluntly, a 19-guage irrigating cannula is passed posterior to the globe to irrigate the recti muscles and the retrobulbar space with 4% lidocaine hydrochloride. Using this technique, even prolonged vitreoretinal surgery can be performed using local anesthesia with minimal patient discomfort.
Local anesthesia can be considered adequate in 22% cases, which is explained by the absence of inhibitory effect on allogens, persistence of psychoemotional tension, and effector reactions. Therefore it is recommended to potentiate local anesthesia by a drug complex including analgesic ketrodole, tranquilizer diazepam, and alpha-adrenoagonist clofelin, used transbuccally 8-10 min before anesthesia. This pretreatment 3-fold increased the adequacy of local anesthesia for tooth removal and pulp extirpation.
We performed transurethral resections of the prostate in 100 patients under local anesthesia supplemented when appropriate by intravenous medication. In the first part of the study (40 patients) local anesthesia was infiltrated into the prostate transurethrally only, while in the second part (60 patients) infiltration was performed transurethrally and perineally. Prostate sizes ranged from 5 to 50 gm., and pain control was excellent in the majority of the patients, especially when perineal infiltration was added to the procedure. Of the patients 98 per cent said they would do it again, no patient required conversion to general anesthesia and there were no significant complications relating to the anesthesia. Local anesthesia with intravenous supplementation can be performed successfully in the majority of the patients with small to moderately sized prostate glands.
Local anesthesia decreases physiologic responses to pain in neonates but has not been used routinely during lumbar punctures in newborns, as it might obscure anatomical landmarks. However, local anesthesia may decrease newborns' struggling during lumbar puncture, thus facilitating the procedure and increasing its success rate. The success rate of lumbar punctures was compared in neonates allocated prospectively to 0.2 to 0.5 mL of 1% lidocaine anesthesia (n = 48) or a control group (n = 52). Newborns were held in a modified lateral recumbent position (neck not flexed) and their struggling response to the various steps in the lumbar puncture was scored by the holder. The newborns' struggling motion score increased in response to lidocaine injection, but response to the subsequent spinal needle insertion was significantly decreased. Despite this decreased motion, no differences were noted in the number of attempts per lumbar puncture (1.9 +/- 0.2 [SEM] in lidocaine and 2.1 +/- 0.2 in control groups), rate of lumbar puncture failure (15% in lidocaine and 19% in control groups), or the number of traumatic lumbar punctures (46% in both groups). The success rate of lumbar puncture was not dependent on level of training of physicians performing the procedure. No acute complications, cerebrospinal fluid contamination, or subsequent meningitis was noted in either group. It is concluded that local anesthesia with lidocaine decreases the degree of struggling but does not alter the success rate of lumbar puncture in neonates. The practice of withholding lidocaine anesthesia from neonates undergoing lumbar punctures cannot be justified by arguing that it makes the procedure more difficult to perform.
Local anesthesia is the most common technique used in the surgical treatment of inguinal hernia. The introduction of synthetic prosthesis, which are resistant to infection, has to the development of surgical techniques used in local anesthesia, in a day hospital setting. These techniques permit a lowering of hospital costs and a reduction of the incidence of complications and recurrences. Over the last few years the authors have been performing a modified Lichtenstein repair or the Rives technique in local anesthesia. In this study they present their data on 52 patients surgically treated in the period 1997-1998, and discuss the advantages of their technique.
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