• Journal of Chest Surgery
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• v.36 no.9
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• pp.678-682
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• 2003

Video-assisted thoracoscopic surgery is good indication of secondary spontaneous pneumothorax. This method usually required general anesthesia and single-lung ventilation with collapse of other lung. But, risks of general anesthesia and single-lung ventilation must be considered in high-risk patients. Material and Method: Between September f999 and August 2001, 15 high-risk patients were treated by video-assisted thoracoscopic surgery under epidural anesthesia. Result: Video assisted thoracoscopic surgery was successfully performed in 15 patients. Duration of postoperative air-leakage was 4.3days, Significance of complication was none, No recurrence of pneumothorax was encountered. Conclusion: Video-assisted thoracoscopic surgery can be performed safely under epidural anesthesia for treatment of secondary spontaneous pneumothorax in high-risk patients.

• Journal of Dental Anesthesia and Pain Medicine
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• v.16 no.2
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• pp.137-140
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• 2016

Spinal muscular atrophy (SMA) is an autosomal recessive, severe neuromuscular disorder in which degeneration of alpha motor neurons in the spine progressively weakens and ultimately paralyzes the proximal muscles. It occurs in one per 6,000-10,000 infants, and is a genetic disorder with the second-highest mortality rate worldwide. An 18-year-old male patient with SMA was referred for general anesthesia for difficulty in performing dental treatment due to limited mouth opening caused by temporomandibular joint (TMJ) pain. However, the patient had a high risk of general anesthesia complications, so TMJ pain during mouth opening was reduced through local anesthesia of the TMJ. Fortunately, the anesthesia was successful in reducing pain during mouth opening, enabling the patient to receive dental treatment with an adequate mouth opening.

• Journal of Audiology & Otology
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• v.23 no.2
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• pp.89-95
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• 2019

Background and Objectives: Knowing the ototoxic potential of the agents used in medical treatments is important for the protection of hearing. Although we have knowledge regarding some effects of dexmedetomidine, which is an anesthetic-sparing drug, its influence over the hearing system has never been studied and is obscure yet. The aim of this study is to determine the effects of intravenous dexmedetomidine application during sevoflurane anesthesia on otoacoustic emissions (OAEs). Subjects and Methods: This prospective randomized study was performed on 60 patients (34 male, 26 female, mean age: 30.6±9.2 years) who were scheduled for an elective surgery under general anesthesia and the patients were enrolled and randomly divided into 2 groups. They received dexmedetomidine (Group D) or Saline (Group S) infusion during a standardized Sevoflurane anesthesia. Transient and distortion product OAEs were measured preoperatively and postoperatively (24th hour). OAE results were compared within and between groups. Results: In group D postoperative OAEs were lower than preoperative OAEs and postoperative levels of group S, especially at low frequencies (p<0.05). Conclusions: Dexmedetomidine infusion affects the micromechanical function of cochlea especially in the low-frequency region. Dexmedetomidine should be carefully used during general anesthesia to avoid its probable harmful effects on cochlear micromechanics.

• Korean Journal of Audiology
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• v.23 no.2
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• pp.89-95
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• 2019

Background and Objectives: Knowing the ototoxic potential of the agents used in medical treatments is important for the protection of hearing. Although we have knowledge regarding some effects of dexmedetomidine, which is an anesthetic-sparing drug, its influence over the hearing system has never been studied and is obscure yet. The aim of this study is to determine the effects of intravenous dexmedetomidine application during sevoflurane anesthesia on otoacoustic emissions (OAEs). Subjects and Methods: This prospective randomized study was performed on 60 patients (34 male, 26 female, mean age: 30.6±9.2 years) who were scheduled for an elective surgery under general anesthesia and the patients were enrolled and randomly divided into 2 groups. They received dexmedetomidine (Group D) or Saline (Group S) infusion during a standardized Sevoflurane anesthesia. Transient and distortion product OAEs were measured preoperatively and postoperatively (24th hour). OAE results were compared within and between groups. Results: In group D postoperative OAEs were lower than preoperative OAEs and postoperative levels of group S, especially at low frequencies (p<0.05). Conclusions: Dexmedetomidine infusion affects the micromechanical function of cochlea especially in the low-frequency region. Dexmedetomidine should be carefully used during general anesthesia to avoid its probable harmful effects on cochlear micromechanics.

• The Journal of the Korean dental association
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• v.56 no.1
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• pp.58-65
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• 2018

Dental local anesthesia is important procedure for the elimination of pain during dental treatment. However, the pain during local anesthesia is one of the main source of fear to the patients. The cause of pain during dental local anesthesia includes soft tissue damage during penetration of the oral mucosa, pressure from the spread of the anesthetic solution, temperature of anesthetic solution, low pH of anesthetic solution, and the characteristics of the drug. Several concepts and devices introduced to date to reduce the pain during local anesthesia for dental treatment. In this report, devices that can reduce the pain during local anesthesia will be discussed.

• Journal of Dental Anesthesia and Pain Medicine
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• v.24 no.3
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• pp.187-193
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• 2024

Background: Patients with autism spectrum disorder (ASD) present challenges in dental treatment cooperation owing to deficits in communication skills and social interaction. Behavioral guidance, sedation, and general anesthesia may be employed to ensure the quality of dental care for individuals with ASD. This study aimed to examine the trends in dental treatment for patients with ASD who visited the Department of Pediatric Dentistry at Dankook University Jukjeon Dental Hospital, an oral health center for the disabled in the Gyeonggi region, over the past 10 years. Methods: This study utilized the order communication system to gather data on sex, age, cooperation level, number of quadrants treated, and administration of sedation or general anesthesia for patients with ASD who visited the Department of Pediatric Dentistry at Dankook University Jukjeon Dental Hospital between January 2013 and December 2022. Results: The total number of patients with ASD increased annually, possibly due to an increase in ASD prevalence and the hospital's designation as a center for disabled oral health. General anesthesia was predominant before 2017, with a shift towards N₂O-O₂ sedation. The most common age group for sedation or general anesthesia was 6-9 years, with a higher prevalence in males than in females. Notably, N₂O-O₂ and midazolam sedation resulted in better cooperation and fewer treated teeth than general anesthesia. Conclusion: This study highlights the evolving trends in dental treatment for individuals with ASD, indicating a shift towards outpatient methods, particularly N₂O-O₂ sedation. The sex distribution aligns with national statistics, emphasizing a higher prevalence of ASD in males than in females. These findings underscore the need for further research to establish evidence-based guidelines for optimal dental care strategies tailored to the unique needs of individuals with ASD.

• Journal of Dental Anesthesia and Pain Medicine
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• v.19 no.5
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• pp.301-306
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• 2019

Mounier-Kuhn syndrome (MKS) is a disease characterized by dilation of the trachea and mainstem bronchi. Due to the risk of airway leakage, pulmonary aspiration, and tracheal damage, MKS can be fatal in patients undergoing tracheal intubation. Moreover, MKS may not be diagnosed preoperatively due to its rarity. In this case, a patient undergoing neurosurgery was incidentally diagnosed with MKS during general anesthesia. During anesthesia induction, difficulties in airway management led the anesthesiologist to suspect MKS. Airway leakage was resolved in this case using oropharyngeal gauze packing. Anesthesiologists should be aware of the possibility of MKS and appropriate management of the airways.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.20 no.4
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• pp.291-295
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• 1998

Intravenous anesthesia was compared with inhalation anesthesia in 20 patients of oral and maxillofacial surgery. The patients were randomly assigned to study in two treatment groups. 20 patients were injected ketamine and propofol. 20 patients were administered Enflurane. The respond of patients consciousness and general recovery condition of the two groups were compared. Intravenous anesthesia group were awake significantly faster without complications such as nause, vomiting, and agitation after operation than inhalation anesthesia group. Full recovery time of intravenous anesthesia group was significantly 3 times less than inhalation anesthesia group. The authors conclude that intravenous anesthesia is a practical technique for oral and maxillofacial surgery patients undergoing and may be preferable to intravenous anesthesia because of the significantly short of recovery time without complications.

• Journal of Dental Anesthesia and Pain Medicine
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• v.20 no.3
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• pp.165-171
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• 2020

The congenital long QT syndrome (LQTS) is an inherited cardiac disorder characterized by increased QT intervals and a tendency to experience ventricular tachycardia, which can cause fainting, heart failure, or sudden death. A 4-year-old female patient undergoing velopharyngeal correction surgery under general anesthesia suddenly developed Torsades de pointes. Although the patient spontaneously resolved to sinus rhythm without treatment, subsequent QT prolongation persisted. Here, we report a case of concealed LQTS with a literature review.

• Journal of The Korean Dental Society of Anesthesiology
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• v.13 no.4
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• pp.179-188
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• 2013

Background: Today, there are computer controlled local anesthesia devices used clinically. The main principle is to control injection speed by computer aided system, and it relieves pain. However, there are few objective data considering this subject. In this literature review, we researched studies about computer controlled anesthetic delivery. We compared pain control effect of computer controlled to conventional local anesthetic syringe system. Methods: A bibliographic search in PubMed was performed and we reviewed original articles. Results: There were 18 publications that compared pain control effect of computer controlled to conventional system. There were 8 articles reported of children, similar pain control effect was found in 7 of them. One study showed superior pain control effect of computer controlled anesthetic delivery. For adults, 10 studies showed superior pain control effect in computer aided system. Conclusions: Computer controlled anesthetic delivery has similar or superior pain control effect compared to conventional local anesthetic syringe system. For both children and adults, computer controlled anesthetic delivery could be clinically useful, still it may be more effective for adults.