• Journal of The Korean Dental Society of Anesthesiology
• /
• v.11 no.1
• /
• pp.22-26
• /
• 2011

Background: There is controversy regarding the relative perioperative benefits of desflurane when used for induction of anesthesia. Inhalation induction with desflurane alone causes adverse airway events, such as coughing, bronchospasm, laryngospasm, and copious secretion of varying severity. The aim of this study was to determine whether desflurane minimize cardiovascular activation during induction. Methods: Sixty ASA I and II patients were randomized to receive 1 MAC or 1.5 MAC of desflurane during manual vernilation or not. Patients received propofol (2 mg/kg) to induce loss of consciousness (LOC). Rocuronium (0.8 mg/kg) was given at LOC and the trachea was intubated after 90 seconds of manual breathing support with or without inhaled anesthetics. Vital signs and adverse airway events were recorded until 10 minutes post-intubation. Results: A significant increase in blood pressure and heart rate were seen in no desflurane group. The stable vital signs were seen in desflurane groups. The adverse airway events were increased in 1.5 MAC group but 1 MAC group. Conclusions: Desflurane was able to be stable blood pressure and heart rate at 1 MAC but adverse airway events were increased at 1.5 MAC of desflurane.

• Journal of Yeungnam Medical Science
• /
• v.25 no.2
• /
• pp.150-153
• /
• 2008

A 67-year-old woman with severe congestive heart failure (New York Heart Association, NYHA class IV) was set to receive general anesthesia for cardiac surgery. For several months, she had been in a constant sitting position from which the slightest change evoked dyspnea. A patient in such a condition is rarely considered a candidate for general anesthesia, because such patients are never eligible for any type of surgery other than that used to fix the heart problem itself. We report this case to explain how anesthesia was induced with the patient sitting in a crouching position and discuss other methods of induction that can probably be used in similar situations.

• Journal of Dental Anesthesia and Pain Medicine
• /
• v.16 no.4
• /
• pp.283-288
• /
• 2016

Background: Sevoflurane sedation in pediatric and disabled patients has the advantage of faster induction and recovery compared to general anesthesia, as well as minimum influence on the respiratory and cardiovascular functions, and airway protective reflexes. This study aimed to evaluate the clinical efficacy of sevoflurane sedation used in dental treatment at one provincial dental clinic center for the disabled. Methods: We investigated patients' gender, age, reasons for undergoing sedation, medication history prior to treatment, duration of anesthesia, treatment length, type of treatment, and yearly patterns, for 387 cases of dental treatment performed using sevoflurane sedation from January 2013 to October 2016. Results: We analyzed 387 cases (215 male patients, 172 female patients). Male patients aged 20 year or older accounted for 39.0% of all patients, marking the highest proportion. Patient's lack of cooperation was the most common reason for performing dental sedation. Prosthetic treatment was the most frequently practiced, accounting for 174 treatment cases. The mean lengths of the entire treatment and of the dental procedure were 55.2 min and 39.8 min, respectively. Conclusions: Sevoflurane sedation has the advantage of fast anesthesia induction and recovery compared to general anesthesia; therefore, it can be used efficiently to induce anesthesia in pediatric and disabled patients during short dental procedures, enabling stable treatment of these patients.

• Proceedings of the Korean Society of Veterinary Clinics Conference
• /
• 2006.05a
• /
• pp.144-144
• /
• 2006

• Korean Journal of Veterinary Research
• /
• v.23 no.1
• /
• pp.111-117
• /
• 1983

In the present study, the optimal electric current and induction time of the acupuncture anesthesia were determined and the clinical signs during and after the acupuncture anesthesia were observed in 90 Korean native dogs. The results were summarized as fellows. 1. Optimal electric current was 11-13 Hz at 1.0 volt initially with gradual increase up to 22-26 Hz at 5.0-6.0 volts after 5 minutes. 2. The induction time was 7-20 minutes in all cased; 55.8% out of them showed the induction time of 7-10 minutes. 3. No differences were found in the analgesic effect and clinical signs between ages and between body weights. There were individual differences in the induction time and the optimal electric current. The respiratory and pulse rates were lower at 5 minutes after the removal of the needles than 5 minutes before attachment of needles to the electrodes.

• Journal of Dental Anesthesia and Pain Medicine
• /
• v.20 no.1
• /
• pp.9-17
• /
• 2020

Background: This study aimed to compare the pain levels during anesthesia and the efficacy of the QuickSleeper intraosseous (IO) injection system and conventional inferior alveolar nerve block (IANB) in impacted mandibular third molar surgery. Methods: This prospective randomized clinical trial included 30 patients (16 women, 14 men) with bilateral symmetrical impacted mandibular third molars. Thirty subjects randomly received either the IO injection or conventional IANB at two successive appointments. A split-mouth design was used in which each patient underwent treatment of a tooth with one of the techniques and treatment of the homologous contralateral tooth with the other technique. The subjects received 1.8 mL of 2% articaine. Subjects' demographic data, pain levels during anesthesia induction, tooth extractions, and mouth opening on postoperative first, third, and seventh days were recorded. Pain assessment ratings were recorded using the 100-mm visual analog scale. The latency and duration of the anesthetic effect, complications, and operation duration were also analyzed in this study. The duration of anesthetic effect was considered using an electric pulp test and by probing the soft tissue with an explorer. Results: Thirty patients aged between 18 and 47 years (mean age, 25 years) were included in this study. The IO injection was significantly less painful with lesser soft tissue numbness and quicker onset of anesthesia and lingual mucosa anesthesia with single needle penetration than conventional IANB. Moreover, 19 out of 30 patients (63%) preferred transcortical anesthesia. Mouth opening on postoperative first day was significantly better with intraosseous injection than with conventional IANB (P = 0.013). Conclusion: The IO anesthetic system is a good alternative to IANB for extraction of the third molar with less pain during anesthesia induction and sufficient depth of anesthesia for the surgical procedure.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
• /
• v.23 no.2
• /
• pp.103-117
• /
• 2010

In this study, the heart rate variability(HRV) signal of operating patient was acquired according to anesthesia progress and identified to evaluation possibility of depth of anesthesia in each anesthesia stage. The HRV signal was analyzed time-frequency domain applied to Wigner-Ville distribution method, the characteristic parameters were extracted for evaluation of depth of anesthesia in each anesthesia stage. The progress of general anesthesia was divided into the states of pre-operation, induction of anesthesia, operation, awaking and post-operation.

• Journal of Chest Surgery
• /
• v.55 no.4
• /
• pp.293-300
• /
• 2022

Lung transplantation is the only treatment option for patients with end-stage lung disease. Although more than 4,000 lung transplants are performed every year worldwide, the standardized protocols contain no guidelines for monitoring during lung transplantation. Specific anesthetic concerns are associated with lung transplantation, especially during critical periods, including anesthesia induction, the initiation of positive pressure ventilation, the establishment and maintenance of one-lung ventilation, pulmonary artery clamping, pulmonary artery unclamping, and reperfusion of the transplanted lung. Anesthetic management according to the special risks associated with a patient's existing lung disease and surgical stage is the most important factor. Successful anesthesia in lung transplantation can improve hemodynamic stability, oxygenation, ventilation, and outcomes. Therefore, anesthesiologists must have expertise in transesophageal echocardiography, extracorporeal life support, and cardiopulmonary anesthesia and understand the pathophysiology of end-stage lung disease and the drugs administered. In addition, communication among anesthesiologists, surgeons, and perfusionists during surgery is important to achieve optimal patient results.

• Journal of Veterinary Clinics
• /
• v.15 no.1
• /
• pp.56-61
• /
• 1998

A retrograde intravenous regional anesthesia was applied to the extremities of 30 cows, which was showed that mean value of induction time was 13.5 seconds, duration time 74.4 minutes, frequency of injection until to keep needle into the vein 1.27, and didn't observed local and systemic complications. Under the retrograde intravenous regional anesthesia, it was possible for surgical treatment of 20 cows with various foot disorders, to resect soft tissues of extremities and claw horns, to sexarticulate 2nd phalanx without pain reactions.

• Journal of The Korean Dental Society of Anesthesiology
• /
• v.11 no.1
• /
• pp.51-54
• /
• 2011

Wolff-Hirschorn syndrome is a condition that is caused by a deletion of genetic material near the end of the short (p) arm of chromosome 4. The major features of this disorder include a characteristic facial appearance, delayed growth and development, intellectual disability, and seizures. A 9-year-old girl was brought to the clinic with a chief complaint of dental examination. The child was diagnosed as WHS at Samsung medical center. The child was under Sodium valproate, Atrovastatin medication for epilepsy, hyperlipidemia and had a history of heart surgery. So prophylactic antibiotics were recommended. The child was mentally retarded and had seizure so it was difficult to manage her behavior effectively. Thus dental treatment was carried out under general anesthesia. For prompt sedation induction we used 8% sevoflurane shortly. This report presents the case of a 9-year-old girl with WHS, who has received treatment for extensive caries under general anesthesia.