1.Optimum Dose of Pipecuronium with a Intravenous Bolus Injection for Endotracheal Intubation in Adults.
Tae Gan RYU ; Mi Kyeong LEE ; Young Cheol PARK ; Sang Ho LIM ; Suk Min YOON ; Young Seok CHOI
Korean Journal of Anesthesiology 1997;33(3):453-457
BACKGROUND: Studies in animals suggest that pipecuronium dose not induce hemodynamic chan-ges related to histamine release or to an effect on the autonomic nervous system. Therefore the effects of bolus administration of large doses of pipecuronium, up to 0.20 mg/kg, on the intubation condition, onset and duration of neuromuscular blockade, heart rate and blood pressure were studied during fentanyl- nitrous oxide anesthesia. METHOD: Forty adults were randomly assigned to receive a bolus injection of either 0.05, 0.10, 0.15, 0.20 mg/kg of pipecuronium. Neuromuscular blockade was measured using mechanomyographic activity of the adductor pollicis muscle after supramaximal stimulation of the ulnar nerve. Four subgroups of 10 patients received pipecuronium doses of 0.05, 0.10, 0.15 and 0.20 mg/kg, respectively, as an intubating dose. RESULTS: The times of onset and clinical duration (mean sem) after each dose were as follows: 0.05 mg/kg, 2.98 0.42 and 41.5 2.42 min; 0.10 mg/kg, 1.54 0.06 and 82.9 7.48 min; 0.15 mg/kg, 1.41 0.14 and 124.8 13.1 min; 0.20 mg/kg, 1.12 0.05 and 187.1 12.8 min. The intubation condition, time of onset and duration after doses of 0.05 mg/kg were significantly different from values after the higer doses. The duration was increased with dose-increments. No dose-related changes in heart rate or blood pressure were observed. CONCLUSION: The authors conclude that dose of 0.10 mg/kg and over has good intubation condition clinically and large bolus dose of pipecuronium can be safely used with a significantly prolonged duration of action without hemodynamic change.
Adult*
;
Anesthesia
;
Animals
;
Autonomic Nervous System
;
Blood Pressure
;
Heart Rate
;
Hemodynamics
;
Histamine Release
;
Humans
;
Intubation
;
Intubation, Intratracheal*
;
Neuromuscular Blockade
;
Nitrous Oxide
;
Pipecuronium*
;
Ulnar Nerve
2.The Result of Combined Modality Treatment for Non-Hodgkin's Lymphoma of Head and Neck.
Jae Cheol KIM ; Sang Bo KIM ; Samuel RYU ; In Kyu PARK
Journal of the Korean Society for Therapeutic Radiology 1990;8(2):255-260
From April 1985 to September 1989, 26 patients with stage IandII non-Hodgkin's lymphoma of unfavorable histology localized in head and neck region were treated with combined modality (combination chemotherapy plus radiotherapy) at the Department of Therapeutic Radiology in Kyungpook National University Hospital. Of the 26 patients, 23 showed complete response and 3 partial response. Between these two groups there were no statistical differences according to the variables. Three-year survival and disease-free survival rate were 62.4% and 65.2%, respectively. Unilateral involvement of neck node (p<0.05), radiation dose over 5000 cgy (p<0.01,) and 6 or more cycles chemotherapy (p=0.06) had a favorable effect on 3-year survival rate. There were 8 recurrences including 3 partial responders, 1 local failure, 1 distant failure, 1 contiguous failure, and 2 simultaneous local and distant failure. It could be suggested that combined modality treatment might be necessary for the treatment of stage IandII Non-Hodgkin's lymphoma of unfavorable histology.
Disease-Free Survival
;
Drug Therapy
;
Gyeongsangbuk-do
;
Head*
;
Humans
;
Lymphoma, Non-Hodgkin*
;
Neck*
;
Radiation Oncology
;
Recurrence
;
Survival Rate
3.Radioprotective Effect of Mesna on Mouse Testis.
Samuel RYU ; Jae Cheol KIM ; Sang Bo KIM ; In Kyu PARK
Journal of the Korean Society for Therapeutic Radiology 1990;8(2):145-150
Mesna has been used with ifosfamide to prevent urotoxicity in the treatment of testicular cancers. This drug also protected the toxicities of adriamycin without compromising cytostatic activity. With n idea of radioprotective role of sulfhydryl group of radioprotectors and of mesna decreasing the toxic effect of adriamycin which produces free radicals, mesna and radiation were administered to mice to study the protective effect of this drug and to identify the difference in regenerative capacity of the germ cells in the testis between radiation-treated and both mesna- and radiation-treated groups. The shape and numbers of spermatogenic cells in the seminiferous tubules were examined every week after irradiation. In both groups, initial reduction and later recovery in germ seel numbers and shape was observed. The lowest germ cell number was found around three weeks after irradiation. Mean germ cell number of the mesna-treated group was significantly higher than radiation-treated group at all observed periods (p<0.05). More competent regeneration was present in mesna-treated group. These results suggest that mesna protect the testis from radiation injury. Further study will be necessary to identify whether mesna protects other tissues from radiation and it does not hamper tumor control.
Animals
;
Doxorubicin
;
Free Radicals
;
Germ Cells
;
Ifosfamide
;
Mesna*
;
Mice*
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Radiation Injuries
;
Regeneration
;
Robenidine
;
Seminiferous Tubules
;
Testicular Neoplasms
;
Testis*
4.Pseudoaneurysm Formed by Slippage of Aneurysmal Clip.
Hyun Cheol RYU ; Sang Won YOON ; Jun Seob LIM
Journal of Korean Neurosurgical Society 2005;38(2):141-143
We report a case of pseudoaneurysm formation after aneurysmal clipping. An aneurysm, which was located on the beginning of orbitofrontal artery, was clipped and wrapped with Surgicel(R) and fibrin glue. Four weeks later, an enlarged aneurysm was detected at the same site on postoperative angiography. We could not find a new aneurysm in the second operation except inflated wrapping region. And clip had been slipped from the original aneurysmal neck. So we concluded that a new aneurysm was a pseudoaneurysm made with surgicel and fibrin glue. And it had been formed from continuous minor leakage caused by slipped clip.
Aneurysm*
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Aneurysm, False*
;
Angiography
;
Arteries
;
Fibrin Tissue Adhesive
;
Neck
5.Treatment of bronchopleural distula with muscle flap technique.
Jeong Cheol KIM ; Sang Hyun WOO ; See Ho CHOI ; Han Young RYU ; Sung Sae HAN ; Jung Hyun SEUL
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(2):306-313
No abstract available.
6.MALIGNANT FIBROUS HISTIOCYTOMA OF THE MAXILLA : REPORT OF TWO CASES
Sang Chull LEE ; Yeo Gab KIM ; Dong Mok RYU ; Baek Soo LEE ; Ok Byung YOON ; Min Cheol SHIN
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1998;20(1):1-10
Adult
;
Connective Tissue
;
Extremities
;
Head
;
Histiocytoma, Malignant Fibrous
;
Humans
;
Maxilla
;
Neck
;
Radiotherapy
;
Sarcoma
7.Current status of gynecological cancer in China.
Kidong KIM ; Rongyu ZANG ; Seok Cheol CHOI ; Sang Young RYU ; Jae Weon KIM
Journal of Gynecologic Oncology 2009;20(2):72-76
The aim of this review is to examine the current status of gynecological cancer in China focusing on epidemiological data. Epidemiological data on gynecological cancer in China is sparse. Therefore, most of the data were estimated via extrapolation based on a few available datasets. Cervical cancer is relatively rare and the incidence and mortality rate are largely decreasing. However, in young women, the incidence and mortality rates are increasing. The overall and age-specific incidence rates of cervical cancer appear to be varied according to geographical areas. The overall prevalence rate of human papillomavirus (HPV) in China is similar with other eastern Asian countries, but the age-specific HPV prevalence showed sustained high HPV prevalence rates in elderly women. There is not yet an established national program for cervical cancer prevention. The incidence rate of corpus and ovarian cancers in China slightly increased between 2000 and 2005, but is still lower than Japan or Korea. There is no reliable, national-level data on mortality rates of corpus and ovarian cancer in China. Breast cancer is one of the most rapidly increasing cancers in China. The increase was sharper in young women than in elderly women. Both increased risk and change of population size/structure contributed to the increase of breast cancer.
Aged
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Asian Continental Ancestry Group
;
Breast Neoplasms
;
China
;
Endometrial Neoplasms
;
Female
;
Humans
;
Incidence
;
Japan
;
Korea
;
Ovarian Neoplasms
;
Prevalence
;
Uterine Cervical Neoplasms
8.A Case of Electrocardiographic and Mental Change in a Patient with a Diphenhydramine Overdose.
Cheol Sang PARK ; In Gu KANG ; Hyun Sik RYU ; Seong Soo PARK ; Mi Jin LEE ; Won Joon JEONG
Journal of the Korean Society of Emergency Medicine 2010;21(3):405-411
The antihistaminic drug diphenhydramine is mainly used as a sedative, hypnotic and antiemetic. In many countries it is available over-the-counter, very common, and generally regarded as a harmless drug. However, diphenhydramine overdose can result in cardiotoxicity due to its ability to block fast sodium channels in a manner analogous to classic Vaughan-Williams type IA antidysrhythmic agents. As such, cardiotoxicity from diphenhydramine resembles that of the tricyclic antidepressant agents. Here we report a case of a 52 year old man who ingested 2,000 mg of diphenhydramine and presented with an altered mental state and an electrocardiographic change. His electrocardiogram showed sinus tachycardia with a rate 145 beat/min, a QRS interval of 88 ms, and a QTc of 556 ms. He had a wide anion gap metabolic acidosis. He was treated with intravenous sodium bicarbonate and supportive therapy. His clinical manifestations waned and he was transferred to another hospital nearby his hometown.
Acid-Base Equilibrium
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Acidosis
;
Diphenhydramine
;
Electrocardiography
;
Humans
;
Sodium Bicarbonate
;
Sodium Channels
;
Tachycardia, Sinus
9.Unilateral Transforaminal Lumbar Interbody Fusion in Spondylolisthesis: Comparison with Conventional Posterior Lumbar Interbody Fusion Through Bilateral Approach.
Sang Bum KIM ; Taek Soo JEON ; Seung Ryol RYU ; Seung Hwan KIM ; Cheol Mog HWANG
Journal of Korean Society of Spine Surgery 2008;15(2):87-95
STUDY DESIGN: Retrospective controlled study. OBJECTIVES: The aim of this study was to determine if unilateral TLIF is comparable to conventional PLIF with regard to radiologic and clinical outcomes, and to examine the viability of local bone for bone grafting in lumbar interbody fusion. SUMMARY OF LITERATURE REVIEW: TLIF, a modified form of PLIF, is a new spinal fusion technique that avoids the typical complications of PLIF. MATERIALS AND METHODS: We analyzed 32 cases of single-level TLIF or PLIF in patients with degenerative or isthmic spondylolisthesis, who were followed for more than 1 year. The patients in group 1 underwent TLIF, and the patients in group 2 underwent PLIF. The fusion rate, changes in disc height, and degree of anterolisthesis in the fused segment were analyzed radiologically. The clinical results were evaluated using the Oswestry Disability Index and visual analog scale. We also analyzed operative time, blood loss, and complications in both groups. RESULTS: Radiologically and clinically, there were no significant differences between the two groups in terms of fusion rate, changes in disc height, or degree of anterolisthesis in the fused segment. The mean operative time was 200 minutes in group 1 and 240 minutes in group 2. The mean blood loss was 854 ml in group 1 and 1102 ml in group 2(p>0.05). CONCLUSIONS: TLIF is a potentially useful alternative to conventional PLIF in patients with degenerative or isthmic spondylolisthesis. Additionally, local bone may be a viable source of bone grafts for single-level TLIF and PLIF.
Bone Transplantation
;
Humans
;
Operative Time
;
Retrospective Studies
;
Spinal Fusion
;
Spondylolisthesis
;
Transplants
10.The Neuromuscular Blocking Effect of Mivacurium in Isolated Rat Phrenic-Hemidiaphragm with Long-term Phenytoin Pretreatment.
Tae Gan RYU ; Jong Sul KIM ; Mi Kyeong LEE ; Young Cheol PARK ; Sang Ho LIM ; Young Seok CHOI ; Suk Min YOON
Korean Journal of Anesthesiology 1997;33(2):237-242
BACKGROUND: Long-term phenytoin therapy induces resistance to the neuromuscular blocking effects of metocurine, atracurium, doxacurium, and pipecuronium. This study examine neuromuscu-lar blocking effect and recovery of mivacurium in isolated rat phrenic-hemidiaphragm with two-weeks phenytoin pretreatment. METHOD: After the administration of 14 days of phenytoin 40 mg/kg, administered intraperitoneally twice daily (n=10), ED90, antagonism of neostigmine and 4-aminopyridine on the electrically evoked twitch response and train-of-four (TOF) stimulation were compared to control groups in isolated rat phrenic-hemidiaphragm preparation. RESULTS: ED90 was significantly greater in the phenytoin group than in the control group (319 +/- 39.5 g vs. 209.5 +/- 52.2 g, respectively). After the administration of neostigmine 0.75 M, the recovery of the single twitch and TOF ratio were significantly lesser in the phenytoin group than in the control group (single twitch; 19.6 +/- 6.6% vs. 69.2 +/- 9.4%, TOF ratio; 0.258 +/- 0.149 vs. 0.543 +/- 0.1, respectively). After the administration of 4-aminopyridine 40uM, the recovery of the single twitch and TOF ratio were no significant differrence between the phenytoin group and the control group (twitch; 118.1 +/- 25.3% vs. 122.6 +/- 24.8%, TOF ratio; 0.937 +/- 0.051 vs. 0.949 +/- 0.067, respectively). CONCLUSION: Long-term phenytoin therapy induces resistance to the neuromuscular blocking effects of mivacurium.
4-Aminopyridine
;
Animals
;
Atracurium
;
Drug Interactions
;
Neostigmine
;
Neuromuscular Blockade*
;
Phenytoin*
;
Pipecuronium
;
Rats*