No abstract available.
Humans ; Urinary Retention*

Propofol is a rapidly acting intravenous anesthetic agent used for the induction of anesthesia, with a low incidence of side effects. But pain on injection of propofol has limited its use. The additional effect of lidocaine on painful injection of propofol was studied, during induction of general anesthesia in 75 patients in a prospective, randomized method. They were allocated randomly to three groups to receive propofol 2.0 mg/kg(group A), propofol 2.0 mg/kg with lidocaine 0.2 mg/kg(group B), propofol 2.0 mg/kg with lidocaine 0.3 mg/kg(group C). Pain score was assessed on a simple scale graded from 0 (no pain) to 3 (severe pain). Mean arterial blood pressure and heart rate were monitored at 1, 3, 5, 7 minutes after endotracheal intubation. In group B and C, significantly smaller pain score was observed. On the other hand, changes of mean arterial blood pressure and heart rate after endotracheal intubation was not significant. It is concluded that the addition of small amount of lidocaine can significantly reduce the severity of pain on injection of propofol.
Anesthesia ; Anesthesia, General ; Arterial Pressure ; Hand ; Heart Rate ; Humans ; Incidence ; Injections, Intravenous ; Intubation, Intratracheal ; Lidocaine* ; Propofol ; Prospective Studies

Severe bradycardia has been associated with a number of medications used for induction of anesthesia. Fentanyl and other potent opioids are well known for their central vagotonic effect, particularly when given rapidly in high doses. Propofol administration has also been associated with bradycardia, and may even exert a central vagotonic or sympatholytic ef- fect, or both. The anesthetic induction with propofol fentanyl may be followed by severe bradycardia in patients who have not received atropine. The bradyeardia may be prevented by premedication with atropine. We report a case in which anesthesia was induced with fentanyl 3 ug/kg and propofol 2. 5mg/kg in 43 year old female patient undergoing oophorectomy. Twenty or thirty seconds after injection of propofol and fentanyl the reduction of blood pressure and severe bradycardia appeared along with premature ventricular contraction and Mobitz type I A-V block. Immediate therapy was initiated with injection of atropine 0.5mg and hyperventilation with 100% oxygen. After about one minute the vital sign of the patient returned to normal. We emphasize that anticholinergic and oxygen before induction with fentanyl propofol should be administered to prevent possible bradycardia and hypoxia.
Adult ; Analgesics, Opioid ; Anesthesia ; Anoxia ; Atropine ; Blood Pressure ; Bradycardia* ; Female ; Fentanyl ; Humans ; Hyperventilation ; Ovariectomy ; Oxygen ; Premedication ; Propofol ; Ventricular Premature Complexes ; Vital Signs

Midazolam and propofol by continuous intravenous infusion produce excellent and easily controllable sedation as an adjunct to spinal anesthesia. The purpose of the present study is to compare the cardiovascular and respiratory effect, degree of sedation and recovery of midazolam and propofol, and then determines the mean infusion rate of both groups. Forty patients of ASA class 1 or 2 scheduled to lower extremities surgery under spinal anesthesia were classified randomly into 2 groups. Group 1 were infused with midazolam 0.1-0.2mg/kg/h and group 2 propofol 2-3mg/kg/h. The results were as follows: 1) The mean induction dose of midazolam was 0.29+/-0.03mg/kg/h and propofol was 5.56+/-0.78mg/kg/h and the mean infusion rate of midazolam was 0.09+/-0.02mg/kg/h and propofol was 2.13+/-0.41mg/kg/h, which resulted in easily controllable sedation during operation. 2) The quality of sedation was assessed as good in 19 patients but 1 patient showed excitatory movements after midazolam infusion. Good sedation was provided in 16 patients but 2 patients showed excitatory movements and 2 patients complained pain on injection after propofol infusion. 3) The mean arterial pressure was more significantly decreased in propofol than midazolam group. 4) The heart rate was more decreased than control in both groups. 5) Airway maintenance was excellent and side effects were rare. 6) Recovery, judged by ability to open the eyes and recall date of birth, was significantly more rapid after propofol than after midazolam infusion.
Anesthesia, Spinal* ; Arterial Pressure ; Heart Rate ; Humans ; Infusions, Intravenous* ; Lower Extremity ; Midazolam* ; Parturition ; Propofol*

Propofol(Diprivan, England ICI) is a new intravenous anesthetic agent chemically unrelated to barbiturates or other intravenous anesthetic agents. It was found to produce rapid onset of anesthesia and early recovery similar to that Obtained with pentothal sodium. The purpose of the present study is to compare the cardiovascular and respiratory effect of propofol with the cardiovaseular and respiratery effeet of pentothal sodium. Sixty patients of ASA class l or 2 scheduled to undergo gynecological, orthopedic and abdominal procedures were classified randomly into 3 Groups. Group A were injected with pentothal sodium 5.0 mg/kg and Group B, C received propofol 2.0 mg/kg, 2.5 mg/kg respectively. The results were as follows, 1) Change of the systolic arterial pressure. Propofol 2.5 mg/kg produced the greatest decrease in systolic blood pressure when compared with other groups. 2) Change of the heart rate. Change of the heart rate was minimal after both doses of prepofol when compared with pentothal sodium. 3) Respiratory effect. Respiratory measurement in 20 unpremedicated surgical patients who received an induction dose of propofol 2.5 mg/kg showed significant respiratory depression. 4) Side effect. Excitatory effects and pain on injection were more frequent in propofol group than pentothal sodium group. Nausea, vomiting were more frequent in pentothal sodium group than propofol group.
Anesthesia ; Anesthetics ; Arterial Pressure ; Barbiturates ; Blood Pressure ; England ; Heart Rate ; Humans ; Nausea ; Orthopedics ; Propofol* ; Respiratory Insufficiency ; Sodium ; Thiopental ; Vomiting

Thiopental sodium, a water-soluble barbiturate derivative with pH 10.0, reaches brain tissue in its highest concentration in about 50 seconds after intravenous injection. Blood concentration then decreases according to redistribution. Patients who are given midazolam as an induction agent are known to awake from general anesthesia relatively more slowly than those given pentothal sodium. Fentanyl, a potent analgesic, has been used in balanced anesthesia because of its minimal cardiovascular effects. In the present study, the effects of pentothal sodium, midazolam and midazolam-fentanyl on cardiovascular changes to endotracheal intubation during anesthetic induction were compared. Sixty patients of ASA class I or II scheduled to undergo elective operations were classified randomly into 3 groups. Group I and II were injected with thiopental sodium 5.0 mg/kg and midazolam 0.2 mg/kg, respectively. Group III received midazolam 0.1 mg/kg and fentanyl 2 ug/kg. The results were as follows ; 1) The onset time (time from intravenous injection to loss of eyelid reflex) of group III (137+/-10.29 seconds, p<0.05) was longer than those of group I (10+/-3.22 seconds) and group II (37+/-12.49 seconds). 2) The change of the mean arterial pressure : Group III showed minimal change (4% decrease, p<0.05) at 1 minute after endotracheal intubation as compared with group I (21% increase) and group II (6% increase). 3) The change of the heart rate ; Group III showed the least change (6% increase, p<0.05) at 1 minute after endotracheal intubation as compared with group I (18% increase) and group II (12% increase). From these results, it is suggested that the combined use of midazolam and fentanyl may cause less effect on the cardiovascular system during endotracheal intubation than midazolam or thiopental sodium alone.
Anesthesia, General ; Arterial Pressure ; Balanced Anesthesia ; Brain ; Cardiovascular System ; Eyelids ; Fentanyl ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Injections, Intravenous ; Intubation, Intratracheal* ; Midazolam ; Sodium ; Thiopental

Midazolam, a water soluble benzodiazepine, was compared with diazepam as the changes of eardiopulmonary function during sedation under the spinal anesthesia in elderly patients. The results were as follows; I) Cardiovascular effect. At the conclusion after diazepam 0.05 mg/kg(Group D) or midazolam 0.02 mg/kg(Group M) injection, systolic, diastolic pressure and heart rate were significantly decreased(P<0.05) in the both group from 3 min to 30 min, but maintained within normal range. However, it is not significant difference that each group. 2) Respiratory effect. SaO decreased significantly at 3 min. in M-group after midazolam injection but there was not significant difference from change in D-group. Respiratory rate, pH and PaCO2 were not significantly changed between D-group and M-group. However, PaO2 was significantly decreased(p<0.05) within normal range at 3 min. in M-group after midazolam IV and significant difference between both groups. From the above results, We have concluded that IV administration of small dose of diazepam or midaaolam during spinal anesthesia had a little changed in cardiopulmonary function. However, sedative effect was efficient.
Aged* ; Anesthesia, Spinal* ; Benzodiazepines* ; Blood Pressure ; Diazepam ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Hypnotics and Sedatives ; Midazolam ; Reference Values ; Respiratory Rate

PURPOSE: Various kinds of biodegradable membranes are currently used in dental clinics. And the frequency and the necessity of their usage are increasing due to their numerous advantages. Therefore it is important to understand the difference of various membranes and histological reaction against implanted membranes. MATERIALS AND METHODS: Biodegradable membranes of Biogide(R), Resolute(R), and Tutodent(R) were cut into small pieces by 1.0x0.5cm. The membranes were implanted 1.5cm apart from each other under the epithelium on the skull of 18 Sprague Dawley rats. The animals were sacrificed at 3, 7, and 14 days after surgical procedure. The specimens were examined by histological analysis. RESULTS: 1. Early period after implantation of the membranes showed connective tissues surrounding membranes and there were a few inflammatory cells present. 2. In Biogide(R) and Tutodent(R) specimens, inflammatory cells and surrounding tissues were shown to infiltrate from outside with slight density difference inside. In Resolute(R) specimens, membranes were fragmented. Inflammatory cells and connective tissues were also observed inside. 3. In Resolute(R) specimen, giant cells were present which implicates that foreign body reaction has occurred. 4. Biogide(R) had lower integrity than other membranes and is not enough to be used alone in defect area. However, Resolute(R) had superior firmness than others. Tutodent(R) had middle level of integrity. CONCLUSION: This experimental model enabled to observe early inflammatory reactions and morphological changes of materials and can be used to develop and evaluate the efficacy of biodegradable membranes. Duplication of standardized human oral environment will be required in future experiments.
Animals ; Connective Tissue ; Dental Clinics ; Epithelium ; Foreign-Body Reaction ; Giant Cells ; Humans ; Membranes* ; Models, Theoretical ; Rats* ; Rats, Sprague-Dawley ; Skull

The cardiovaseular response evoked by tracheal intubation was observed in 69 patients undergoing elective surgery in whom anesthesia was induced with group A, B and C induction agents. Sixty nine ASA class 1 or 2 surgical patients were divided into three groups. Group A: thiopental 5 mg/kg (control) Group B: thiopental 2 mg/kg with midazolam 0.1 mg/kg Group C: midazolam 0.2 mg/kg Systolic and diastolic blood pressure, mean arterial pressure, heart rate and loss of eyelid reflex were measured in each group. There was a little difference in the cardiovascular changes between group A and C. But there was not a significant difference between group A and B and also between group B and C. The measured time until loss of eyelid reflex of the group C (55+/-30 sec) was considerably longer than other groups (Group A: 10+/-3 sec, Group B: 37+/-13 sec). The incidence of venous complication in three groups was low. Pain on injection and posto- perative nausea and vomiting was noted in one patient of the group A and B respectively, but no patient in the group C. There was no significant difference in the incidence of the postoperative local venous complication. On the whole, these results suggest that the difference between midazolam and thiopental had no apparent hemodynamic change. From the above results, both midazolam alone and midazolam combined with thiopental may be useful agents for induction of anesthesia.
Anesthesia* ; Arterial Pressure ; Blood Pressure ; Eyelids ; Heart Rate ; Hemodynamics ; Humans ; Incidence ; Intubation ; Midazolam* ; Nausea ; Reflex ; Thiopental ; Vomiting

In acute myocardial infarction, mural thrombi occur in approximately 20 per cent of patients who do not receive anticoagulant therapy and about 10 percent of thrombi result in systemic embolization. Threrfore, in acute phase of myocardial infarction, heparinization is considered as essential therapeutic regimen which afterwards acute phase, might have no clinical significance. We experienced a patient with recurrent LV apical thrombi inspite of an sufficient anticoagulation. This patient was treated with primary balloon PTCA and optimal duration of anticoa-gulation with IV heparin was maintained. At predischarge follow-up, TTE revealed huge LV apical thrombi and warfarinization was started. Three episodes of appearance and disappearance of thrombi have been noted and we report this patient as thrombophilia associated with acute myocardial infarction.
Follow-Up Studies ; Heparin ; Humans ; Myocardial Infarction* ; Thrombophilia* ; Warfarin