• Journal of Korean Foot and Ankle Society
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• v.3 no.1
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• pp.5-11
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• 1999

We present our experience with the use of nerve block anesthesia in 212 of 484(43.8% ) surgical procedures of the foot and ankle between 1995 and 1997. Nerve block anesthesia was used for surgical procedures of the forefoot, midfoot, hindfoot, and ankle in the setting of elective surgery and trauma. From the viewpoint of the surgeon, nerve block anesthesia was completely successful in 99.5% of the procedures performed. We confirmed that 80% of patients were satisfied with the use of nerve block anesthesia for their operative procedure. There were only one(0.5%) miner complication being toxic neuritis of posterior tibial nerve. With increasing experience, the expanded indications and uses of nerve block anesthesia for foot and ankle surgery are proving to be simple, safe, reliable, and well tolerated by the patient.

• Journal of Korean Biological Nursing Science
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• v.17 no.3
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• pp.236-244
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• 2015

Purpose: The study was conducted to identify factors affecting the intraoperative core body temperature (CBT) of surgical patients under general anesthesia. Methods: This study was performed through a prospective descriptive research design. The sample consisted of 138 patients who had undergone elective laparotomy surgery. Age, weight, height, the basal preoperative CBT, blood pressure, and heart rate were collected. CBT was again measured at induction of anesthesia, 1 hour, 2 hours, and 3 hours following induction of general anesthesia. Results: Factors affecting intraoperative hypothermia < $36^{\circ}C$ at 1 hour following induction, were CBT at induction and total body fat (TBF) ($R^2=.569$, p<.001); at 2 hours after induction, CBT at induction and TBF ($R^2=.507$, p<.001); at 3 hours after induction, CBT at induction (${\beta}=0.34$), TBF, age and the ambient temperature in the operating room ($R^2=.449$, p<.001). Conclusion: CBT at induction and TBF appear to be factors affecting intraoperative CBT within 2 hours after induction of anesthesia; CBT at induction, TBF, advanced age and the ambient temperature after 3 hours following induction. We recommend keeping surgical patients warm before induction of anesthesia and providing intraoperative warming for surgical patients of advanced age with low TBF and when the duration of general anesthesia will last more than 3 hours.

• Proceedings of the IEEK Conference
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• 1999.11a
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• pp.1067-1070
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• 1999

Anesthesia gas to pour to patients affects the flow and volume as the pressure difference of an oxygen and an anesthesia gas. An anesthesia gas, being injurious and polluting an environment, must control the pressure of an oxygen gas because of being used by closing up tight. But a pressure sensor to use for measuring an oxygen gas appears other pressure as the characteristic and the error difference of elements to use for implementing an system. A medical machine such as an anesthesia ventilator must be accurate because of using for the person's body. So we intend to implement an system for a sensor pressure measurement not to be change regardless of an environment. This papers is the target that a sensor pressrue measurement to be changed in environment is equal to actual sensor pressure measurement. So an implemented system is using analog filter and digital filter to reduce a noise. And we are using auto-zeroing and calibration to correct a sensor pressure which is changed in environment. Through such a process we increase the accuracy and the confidence of an anesthesia ventilator by controlling the flow of an anesthesia gas.

• Journal of Veterinary Clinics
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• v.15 no.2
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• pp.404-409
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• 1998

To elucidate the effect of the acupoints of the limbo for canine electroacupunhur anesthesial total 140 heads of dogs were used. The animals were divided into 3 experimental groups(Gong-sun, San-yin-jiao and Qiang-feng and contro1 group(non-acupoint). The induction time, clinical findings and the results of operation using laparatomy were investigated under the electroacupunture anesthesia and compared with those of control. The induction time of electroacupunture anesthesia was very rapids about 1 minute in experimental groups, while it is unable to succeed in anesthesia of control group. As far clinical Bindings during electroacupunture anesthesia, the experimental animals had vivid consciousness and stability without tumult and barking. The success rate of operation was high with decreasing order of Gong-sun group(50/50, 100%) > San-yin·jiao group(26/30, 86.7%) 1 Qiag-feng group(18/ 30, 60%) in experimental groups. Considering above findings collectively, the combination of Gong-sun and San-yang-luo is thought to be best method among the acupoints of the limbs for canine electroacupunture anesthesia.

• Journal of Veterinary Clinics
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• v.4 no.2
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• pp.463-472
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• 1987

Although there are many reports on the bovine electroacupuncture anesthesia, its application to clinical cases needs much to be verified. In order to apply the electroacupuncture anesthesia to bovine species, a new anesthesia technique, which is safe and effective, must be developed. In the present study, 11 meridian points were selected and 11 kinds of meridian points were prescribed to develop an effective and safe electroacupucture methods in the bovine species. The results obtained are summarized as fellows : 1. When the maximun electric current (30Hz at 5.3-5.6V ) was applied, anesthesia was attained with the signs of tetany and tremor : When the electric current was continued for 15-20 minutes, the signs of tetany and tremor diminished markedly. 2. If the electric current was adjusted to 30Hz at 3.5-4.0V and continued, the tetany and tremor disappeared. The skin was slackened, thus suitable for surgical operation. The continuation of anesthesia could be regulated at operator's own will. 3. The same anesthesia effect could be attained by using any one meridian point when the points were symmetrical. 4. Transient changes of clinical signs and blood pictures were noted during the stages of acupuncture anesthesia. However, the red blood cell counts, white blood cell counts and hematocrit values were always within the normal range.

• Journal of The Korean Dental Society of Anesthesiology
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• v.11 no.2
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• pp.133-140
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• 2011

Background: Dental treatment under outpatient general anesthesia is an option for disabled person, children and dentally disabled person who have the difficulty of cooperating voluntary with dental care. The aim of this study was to access the patients who had dental management under general anesthesia at Chungnam dental clinic for the disabled. Methods: This survey is consisted of 114 severely disabled and dentally disabled person who undergone dental treatment under general anesthesia from January to June 2011. Data were collected by individual dental and anesthesia records. Results: Of the 114 patients studies, the 45 patients was the dentally disabled and the 69 patients was the severely disabled. Rate of dental treatment among male patients was higher than among female patients. The dentally disabled was an similar age distribution. In the severly disabled, above 13-year-old was higher than below 12-year-old. The most popular induction method of general anesthesia was sevoflurane inhalation after induced sedative effect of nitrous oxide inhalation. The severly disabled who had definitely negative behavior was applied inhalation of high concentration sevoflurane. Conclusions: Chungnam Dental clinic for the disabled provide dental management for the disabled and the dentally disabled.

• Journal of Dental Anesthesia and Pain Medicine
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• v.18 no.3
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• pp.169-175
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• 2018

Background: The objective of this study was to compare hemodynamic and recovery characteristics of total intravenous anesthesia using propofol target-controlled infusion (TCI) versus sevoflurane for extraction of four third molar teeth. Methods: One hundred patients undergoing extraction of four third molar teeth under general anesthesia were randomized to one of two groups. Group 1 received propofol TCI-oxygen for induction and propofol TCI-oxygen-air for maintenance. Group II received a propofol bolus of 2 mg/kg for induction and sevoflurane-oxygen-air for maintenance. Heart rate, mean arterial pressure (MAP), operating time, time to emergence, nausea and vomiting, and sedation and pain scores were measured in each group. Results: Demographic data, including age, gender, weight, and height, were not significantly different between the two groups. The MAP was significantly higher after intubation (P = 0.007) and injection of anesthesia (P = 0.004) in the propofol group than in the sevoflurane group, with significant reflex bradycardia (P = 0.028). The mean time to emergence from anesthesia using propofol was 25 s shorter than that of sevoflurane (P = 0.02). Postoperatively, the propofol group was less sedated than the sevoflurane group at 30 min (0.02 versus 0.12), but this difference was not significant (P = 0.065). Conclusion: Both propofol TCI and sevoflurane are good alternatives for induction and maintenance of anesthesia for short day-case surgery. However, propofol TCI does not blunt the hemodynamic response to sudden, severe stimuli as strongly as sevoflurane, and this limitation may be a cause for concern in patients with cardiac comorbidities.

• Journal of Dental Anesthesia and Pain Medicine
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• v.17 no.4
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• pp.313-316
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• 2017

Mask ventilation, the first step in airway management, is a rescue technique when endotracheal intubation fails. Therefore, ordinary airway management for the induction of general anesthesia cannot be conducted in the situation of difficult mask ventilation (DMV). Here, we report a case of awake intubation in a patient with a huge orocutaneous fistula. A 58-year-old woman was scheduled to undergo a wide excision, reconstruction with a reconstruction plate, and supraomohyoid neck dissection on the left side and an anterolateral thigh flap due to a huge orocutaneous fistula that occurred after a previous mandibulectomy and flap surgery. During induction, DMV was predicted, and we planned an awake intubation. The patient was sedated with dexmedetomidine and remifentanil. She was intubated with a nasotracheal tube using a video laryngoscope, and spontaneous ventilation was maintained. This case demonstrates that awake intubation using a video laryngoscope can be as good as a fiberoptic scope.

• Journal of Yeungnam Medical Science
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• v.36 no.1
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• pp.50-53
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• 2019

Awareness during general anesthesia occurs in approximately 0.1-0.2% of cases; nevertheless, particular attention is required because it can lead to critical complications including insomnia, depression, anxiety, and post-traumatic stress disorder. To prevent these complications, bispectral index (BIS) and end-tidal anesthetic gas (ETAG) concentration monitoring are commonly used to examine patient consciousness during surgery. In the present case, an 80-year-old man was scheduled for total gastrectomy. Anesthesia was maintained using desflurane 4.0-5.0% vol, oxygen, and nitrous oxide. The authors simultaneously monitored BIS, which was maintained between 37 and 43, and ETAG, which was maintained between 0.9 and 1.2 minimum alveolar concentration (MAC). After the operation, however, the authors were surprised to learn that the patient complained of awareness during anesthesia. Although BIS and ETAG concentration monitoring are useful in preventing awareness during anesthesia, they cannot be completely trusted. Even though BIS was maintained at approximately 40 and ETAG at 0.7-1.3 MAC, awareness during anesthesia occurred.

• Journal of Dental Anesthesia and Pain Medicine
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• v.21 no.6
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• pp.575-582
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• 2021

Background: The aim of this randomized, triple-blind trial was to determine the anesthetic, analgesic, and hemodynamic effects of articaine and bupivacaine in the extraction of impacted mandibular third molar teeth. Methods: Twenty-six patients who underwent removal of bilaterally symmetric mandibular third molars were randomly assigned to articaine and bupivacaine groups in a split-mouth design. The onset of anesthetic action, intraoperative comfort, total amount of solution used, duration of postoperative anesthesia and analgesia, rescue analgesic use, postoperative pain, intraoperative bleeding, and hemodynamic parameters were evaluated. Results: In the articaine group, the onset of anesthetic activity was faster, intraoperative comfort was greater, and effective anesthesia required less local anesthetic solution. The bupivacaine group showed a significantly longer duration of postoperative anesthesia and analgesia, in addition to lower visual analog scale values at 6 and 48 hours postoperatively. There were no significant differences between the two solutions regarding rescue analgesic medication use, intraoperative bleeding, or hemodynamics. Conclusion: Articaine showed greater clinical efficacy than bupivacaine in intraoperative anesthesia, achieving faster onset of anesthetic action and greater patient comfort while also requiring less reinforcement during surgery. However, bupivacaine was superior in terms of postoperative anesthesia, reducing postoperative pain due to its residual anesthetic and analgesic effects. Both anesthetic solutions led to similar hemodynamics at low doses in mandibular third molar surgery