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OBJECTIVES/AIM: The primary objective of this study is to evaluate the effects of topically applied ketamine or tramadol on early postoperative pain scores in children undergoing tonsillectomy. The secondary aim of the study is to assess nausea, vomiting, difficulty in swallowing, and sore throat characteristics of the patients. BACKGROUND: Tonsillectomy surgery is frequently associated with postoperative pain, which usually requires substantial consumption of analgesics including opioids. Safe and effective post-tonsillectomy pain control is still a clinical dilemma, in spite of the use of various surgical and anesthetic techniques. METHODS: A total of 60 children, aged between 4 and 10 years, scheduled for tonsillectomy, were randomly assigned to one of three groups. Study drugs were administered to both tonsillar fossae for 5 min. In 5 ml artificial saliva, Group K (n = 20) received 0.4 ml (20 mg) ketamine and Group T (n = 20) received 0.8 ml tramadol HCl solution. Group C (n = 20) received only 5 ml saline as a control. Ramsay Sedation Scale and FACES PRS Score, nausea, vomiting, difficulty in swallowing, and sore throat were evaluated. RESULTS: There was no difference among the groups in terms of baseline characteristics, including age, sex, and ASA profile (P > 0.05 for all). Systolic blood pressure, diastolic blood pressure, mean blood pressure, heart rate, respiratory rate, and saturation of peripheral oxygen (SpO2 ) values were not significantly different among the groups in all time points (P > 0.05 for all). There was a statistically significant difference among the groups according to Ramsay Sedation Scales in 40th minute (P < 0.001). There were statistically significant differences among the groups in terms of Wong-Baker FACES Pain Rating Scale Score in all time points (P < 0.004 for all). There was a statistically significant difference among the groups in terms of rescue analgesia necessity in 5th and 10th minute (P < 0.001 and P = 0.003). There was a statistically significant difference among the groups in terms of sore throat in 5th and 10th minute (P < 0.001 for both). Neither rescue analgesia necessity nor sore throat characteristics was different between the Group T and Group K in all time points. CONCLUSION: Topical tramadol and ketamine seem to be safe, effective, and easy analgesic approach for decreasing tonsillectomy pain.
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Analgésicos Opioides/uso terapéutico , Analgésicos/uso terapéutico , Ketamina/uso terapéutico , Dolor Postoperatorio/tratamiento farmacológico , Tonsilectomía/efectos adversos , Tramadol/uso terapéutico , Administración Tópica , Analgésicos/administración & dosificación , Analgésicos Opioides/administración & dosificación , Niño , Preescolar , Interpretación Estadística de Datos , Femenino , Hemodinámica/efectos de los fármacos , Humanos , Ketamina/administración & dosificación , Masculino , Dimensión del Dolor , Faringitis/tratamiento farmacológico , Faringitis/etiología , Náusea y Vómito Posoperatorios/epidemiología , Periodo Posoperatorio , Estudios Prospectivos , Tramadol/administración & dosificaciónRESUMEN
BACKGROUND: We investigated the effect of a combination of pregabalin and dexamethasone, when used as part of a multimodal analgesic regimen, on pain control after rhinoplasty operations. METHODS: Sixty patients were enrolled in this study. They were randomly assigned into three groups: Group C (placebo + placebo), Group P (pregabalin + placebo), and Group PD (pregabalin + dexamethasone). Patients received either pregabalin 300 mg orally 1 h before surgery, dexamethasone 8 mg intravenously during induction, or placebo according to their allocation. Postoperative pain was treated with intravenous patient-controlled analgesia (tramadol, 20-mg bolus dose, 45-min lockout time). The numeric rating scale (NRS), side effects, and consumption of tramadol, pethidine, and ondansetron were assessed. RESULTS: The median NRS scores at 0, 1, and 6 h after surgery were significantly higher in Group C than in Group PD (p < 0.001 for all). The 24-h consumption of tramadol and pethidine was significantly reduced in Groups P and PD compared to Group C (p < 0.01 and p < 0.01). The total tramadol consumption was decreased by 54.5 % in Group P and 81.9 % in Group PD compared to Group C (p < 0.001 for both). The incidence of nausea was higher in Group C than in Groups P and PD between the postoperative 0-2 and 0-24-h periods (p < 0.05 for both). The frequency of blurred vision was significantly higher in Groups P and PD than in Group C within the 0-24-h period (p < 0.05 for both). CONCLUSION: We found that the addition of a single dose of pregabalin and dexamethasone to multimodal analgesia in rhinoplasty surgeries provided efficient analgesia and thus decreased opioid consumption. LEVEL OF EVIDENCE I: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Analgesia/métodos , Dexametasona/uso terapéutico , Dolor Postoperatorio/tratamiento farmacológico , Rinoplastia/efectos adversos , Ácido gamma-Aminobutírico/análogos & derivados , Adolescente , Adulto , Anciano , Análisis de Varianza , Método Doble Ciego , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor/efectos de los fármacos , Dolor Postoperatorio/prevención & control , Pregabalina , Cuidados Preoperatorios/métodos , Estudios Prospectivos , Valores de Referencia , Rinoplastia/métodos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Adulto Joven , Ácido gamma-Aminobutírico/uso terapéuticoRESUMEN
OBJECTIVES: In the intensive care setting, Acinetobacter baumannii causes ventilator-associated pneumonia and other nosocomial infections that are difficult to treat. Objective of this study was to investigate nosocomial A. baumannii infections and its changing antibiotic resistance. METHODS: A total of 56 patients diagnosed with A.baumannii infections between January 2009 and December 2011 were included in the study. Diagnosis for nosocomial infections was established according to the CDC (Centers for Disease Control and Prevention) criteria. Identification of the agents isolated was carried out using conventional methods and VITEK 2 automated system, while antibiotic sensitivity testing was performed through VITEK 2 AST-N090 automated system. RESULTS: The most common infection was nosocomial pneumonia by 43%, among which 46% were ventilator-associated pneumonia. Considering all years, the most effective antibiotics on the isolated strains were found as colistin, tigecycline, imipenem and meropenem. However resistance to imipenem and meropenem was observed to increase over years. CONCLUSION: The issue of increased resistance to antibiotics poses difficulty in treatment of A. baumannii infections which in turn increases the rate of mortality and cost. In order to prevent development of resistance, antibiotics must be used in an appropriate way in accompanied with proper guidance.
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BACKGROUND: Total knee arthroplasty (TKA) operation is an effective treatment method in severe osteoarthritis worldwide. However, the number of patients with chronic pain and functional limitations in the postoperative period will continue to increase. Kinesiphobia is an important factor that affects the functional outcomes postoperatively. The aim of this study is to investigate the effects of intraoperative consciousness of the patients during surgery on kinesiophobia development and early functional outcomes of TKA. METHODS: Sixty patients with the diagnosis of primary knee osteoarthritis were enrolled in the study. Tampa Scale of Kinesiophabia (TSK) was obtained for each patient at multiple time periods. Regional anaesthesia and deep sedation were performed on group 1 (n = 30), while regional anaesthesia and light sedation were performed on group 2 (n = 30). The same surgical procedures were applied to all participants. Functional tests were performed on the patients at the postoperative 2nd and 5th days. Visual Analogue Scale (VAS) scores and knee flexion angles were also measured postoperatively. RESULTS: The mean age of the participants (19 men (31.7%) and 41women (68.3%)) was 67.7 ± 6.7 (54-82) years. TSK ≥ 40 was detected in 18 (30%) patients preoperatively and 33 patients (55%) postoperatively. The number of kinesiophobic patients showed statistically significant increase after operation (20/30 (66.7%)) according to preoperative period (9/30 (30%)) in group 2 (p = 0.003). Postoperative functional scores, knee flexion angles and VAS scores were better in non-kinesiophobic patients. Conclusion: Patient's consciousness during TKA operations is an important factor that interferes with the postoperative kinesiophobia development, which may play a pivotal role affecting the early mobility and functional outcomes.
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Artroplastia de Reemplazo de Rodilla/métodos , Sedación Consciente/métodos , Articulación de la Rodilla/cirugía , Osteoartritis de la Rodilla/cirugía , Dolor Postoperatorio/prevención & control , Rango del Movimiento Articular/fisiología , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Articulación de la Rodilla/fisiopatología , Masculino , Persona de Mediana Edad , Resultado del TratamientoRESUMEN
OBJECTIVE: We aimed to evaluate the attitudes of doctors about cardiopulmonary resuscitation (CPR) in this research. METHODS: Overall, 234 doctors who were working in Abant Izzet Baysal University Health Research and Application Center and who accepted to participate in this research were included. Research data were obtained by a questionnaire containing questions about demographic characteristics of doctors and their knowledge about CPR. Questionnaires were applied between 27.02.2012 and 04.06.2012. The chi-square test was used for categorical variables. A value of p<0.05 was considered statistically significant. RESULTS: It was determined that 90% of the participants included in the study applied and/or observed CPR, and 62% of participants did not attend any CPR course. In addition, 64.1% of the doctors were found to be aware of guidelines prepared every 5 years. Although 65.2% of the doctors who attended a course previously gave a correct answer for the question about the number of cardiac compressions during adult CPR, 47.6% of the doctors who did not attend a course gave the correct answer (p=0.014). Additionally, 71.9% of participants who attended a course previously and 51.7% of participants who did not replied correctly to the question 'What should be done immediately after defibrillation during CPR?' And also the results for the question about how many joules is necessary to begin defibrillation with a monophasic defibrillator were statistically significant according to the attendance for a CPR course (p<0.005). CONCLUSION: In this study, we have identified the lack of knowledge of the doctors about resuscitation.
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BACKGROUND: It is not possible to diagnose acute kidney injury (AKI) in early stages with traditional biomarkers. Kidney injury molecule-1 (KIM-1) is a novel biomarker promising the diagnosis of AKI in early stages. We studied whether urinary and serum KIM-1 (KIM-1 U and KIM-1 S ) concentrations were useful in predicting cisplatin-induced AKI in early stages. METHODS: We prospectively analysed 22 patients on cisplatin treatment. KIM-1 S and KIM-1 U concentrations were assessed in the samples of the patients on four different time periods (before treatment [BT], first [AT1], third [AT3] and fifth [AT5] day after treatment). RESULTS: KIM-1 U concentrations on the first day after cisplatin treatment in patients with AKI were significantly increased compared to both KIM-1 U concentrations of the same patients BT (P=0.009) and to AT1-KIM-1 U concentrations of the patients without AKI (P=0.008). A receiver operating characteristic analysis revealed that AT1-KIM-1 U concentrations may predict AKI with an 87.5% sensitivity and 93.3% specificity (area under the curve=0.94). KIM-1 S concentrations were not significantly changed between BT and AT periods. CONCLUSIONS: KIM-1 U concentrations may predict cisplatin-induced AKI in early stages with high sensitivity and specificity.
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Lesión Renal Aguda/diagnóstico , Lesión Renal Aguda/orina , Antineoplásicos/efectos adversos , Cisplatino/efectos adversos , Glicoproteínas de Membrana/orina , Lesión Renal Aguda/sangre , Lesión Renal Aguda/inducido químicamente , Adulto , Anciano , Antineoplásicos/administración & dosificación , Biomarcadores/sangre , Biomarcadores/orina , Cisplatino/administración & dosificación , Diagnóstico Precoz , Femenino , Receptor Celular 1 del Virus de la Hepatitis A , Humanos , Riñón/efectos de los fármacos , Riñón/metabolismo , Riñón/patología , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , Masculino , Glicoproteínas de Membrana/sangre , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Curva ROC , Receptores Virales/sangre , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/patologíaRESUMEN
BACKGROUND: Although regional anesthesia is the first choice for patients undergoing total knee arthroplasty (TKA), it may not be effective and the risk of complications is greater in patients who are obese or who have spinal deformities. We compared the success of ultrasound-guided femoral and sciatic nerve blocks with sedoanalgesia versus spinal anesthesia in unilateral TKA patients in whom spinal anesthesia was difficult. METHODS: We enrolled 30 patients; 15 for whom spinal anesthesia was expected to be difficult were classified as the block group, and 15 received spinal anesthesia. Regional anesthesia was achieved with bupivacaine 62.5 mg and prilocaine 250 mg to the sciatic nerve, and bupivacaine 37.5 mg and prilocaine 150 mg to the femoral nerve. Bupivacaine 20 mg was administered to induce spinal anesthesia. Hemodynamic parameters, pain and sedation scores, and surgical and patient satisfaction were compared. RESULTS: A sufficient block could not be obtained in three patients in the block group. The arterial pressure was significantly lower in the spinal group (P < 0.001), and the incidence of nausea was higher (P = 0.017) in this group. Saturation and patient satisfaction were lower in the block group (P < 0.028), while the numerical pain score (P < 0.046) and the Ramsay sedation score were higher (P = 0.007). CONCLUSIONS: Ultrasound-guided sciatic and femoral nerve blocks combined with sedoanalgesia were an alternative anesthesia method in selected TKA patients.
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BACKGROUND AND OBJECTIVES: Even a small amount of bleeding during endoscopic sinus surgery can corrupt the endoscopic field and complicate the procedure. Various techniques, including induced hypotension, can minimize bleeding during endoscopic sinus surgery. The aim of this study was to compare the surgical vision quality, haemodynamic parameters, postoperative pain, and other effects of magnesium, a hypotensive agent, with that of dexmedetomidine, which was initially developed for short-term sedation in the intensive care unit but also is an alpha 2 agonist sedative. METHOD: 60 patients between the ages of 18 and 45 years were divided into either the magnesium group (Group M) or the dexmedetomidine group (Group D). In Group M, magnesium sulphate was given at a pre-induction loading dose of 50mgkg(-1) over 10min and maintained at 15mgkg(-1)h(-1); in Group D, dexmedetomidine was given at 1mcgkg(-1) 10min before induction and maintained at 0.6mcgkg(-1)h(-1). Intraoperatively, the haemodynamic and respiratory parameters and 6-point intraoperative surgical field evaluation scale were recorded. During the postoperative period, an 11-point numerical pain scale, the Ramsay sedation scale, the nausea/vomiting scale, the adverse effects profile, and itching parameters were noted. RESULTS: Group D showed a significant decrease in intraoperative surgical field evaluation scale scale score and heart rate. The average operation time was 50min, and Group M had a higher number of prolonged surgeries. No significant difference was found in the other parameters. CONCLUSIONS: Due to its reduction of bleeding and heart rate in endoscopic sinus surgery and its positive impacts on the duration of surgery, we consider dexmedetomidine to be a good alternative to magnesium.
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Objectives. The aim of this study was to explore effect of a combination of pregabalin and dexamethasone on pain control after septoplasty operations. Methods. In this study, 90 patients who were scheduled for septoplasty under general anesthesia were randomly assigned into groups that received either placebo (Group C), pregabalin (Group P), or pregabalin and dexamethasone (Group PD). Preoperatively, patients received either pregabalin 300 mg one hour before surgery, dexamethasone 8 mg intravenously during induction, or placebo according to their allocation. Postoperative pain treatment included tramadol and diclofenac sodium 30 minutes before the end of the operation. Numeric rating scale (NRS) for pain assessment, side effects, and consumption of tramadol, pethidine, and ondansetron were recorded. Results. The median NRS score at the postoperative 0 and the 2nd h was significantly higher in Group C than in Group P and Group PD (P ≤ 0.004 for both). The 24 h tramadol and pethidine, consumptions were significantly reduced in Groups P and PD compared to Group C (P < 0.001 and P < 0.001). The incidence of blurred vision was significantly higher in Group PD compared to Group C within both 0-2 h and 0-24 h periods (P = 0.002 and P < 0.001, resp.). Conclusions. We conclude that administration of 300 mg pregabalin preoperatively may be an adequate choice for pain control after septoplasty. Addition of dexamethasone does not significantly reduce pain in these patients.
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OBJECTIVE: Researchers use a large number of information technology tools from the beginning until the publication of a scientific study. The aim of the study is to investigate the technology and data processing tool usage preferences of academics who produce scientific publications in the field of anaesthesiology. METHODS: A multiple-choice survey, including 18 questions regarding the use of technology to assess the preferences of academicians, was performed. RESULTS: PubMed has been the most preferred article search portal, and the second is Google Academic. Medscape has become the most preferred medical innovation tracking website. Only 12% of academicians obtain a clinical trial registration number for their randomized clinical research. In total, 28% of respondents used the Consolidated Standards of Reporting Trials checklist in their clinical trials. Of all participants, 21% was using Dropbox and 9% was using Google-Drive for sharing files. Google Chrome was the most preferred internet browser (32.25%) for academic purposes. English language editing service was obtained from the Scribendi (21%) and Textcheck (12%) websites. Half of the academics were getting help from their specialist with a personal relationship, 27% was doing it themselves, and 24% was obtaining professional assistance for statistical requirements. Sixty percent of the participants were not using a reference editing program, and 21% was using EndNote. Nine percent of the academics were spending money for article writing, and the mean cost was 1287 Turkish Liras/year. CONCLUSION: Academics in the field of anaesthesiology significantly benefit from technology and informatics tools to produce scientific publications.
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OBJECTIVE: To investigate the diagnostic importance of mean platelet volume (MPV) on acute pulmonary embolism (APE) in the emergency Department (ED). METHODS: Subjects were selected from patients admitted to ED with clinically suspected APE. Demographic, anthropometric and serologic data were collected for each patient. RESULTS: A total of 315 consecutive patients were analyzed, including 150 patients (53.44 ± 15.14 y; 92 men/58 women) in APE group and 165 patients (49.80 ±13.76y; 94 men/71 women) in the control group. MPV in the APE group was significantly higher than in the control group (9.42±1.22 fl vs. 8.04±0.89 fl, p<0.0001). The best cut-off values for MPV when predicting APE in patients with clinically suspected APE presenting at the ED were 8.55 fl (sensitivity 82.2%; specificity 52.3%). CONCLUSIONS: MPV is a helpful parameter for the diagnosis of APE in ED, for the first time in the literature.
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Biomarcadores/sangre , Plaquetas/patología , Servicios Médicos de Urgencia/métodos , Volúmen Plaquetario Medio/métodos , Volúmen Plaquetario Medio/estadística & datos numéricos , Embolia Pulmonar/diagnóstico , Enfermedad Aguda , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Embolia Pulmonar/sangre , Curva ROC , Estudios Retrospectivos , Factores de Riesgo , Adulto JovenRESUMEN
BACKGROUND: Midazolam is a sedative-hypnotic agent with amnestic and anticonvulsant properties that can be administrated to mammals through various routes, such as intravenous, intramuscular, oral, intrathecal, rectal, and buccal. Midazolam administration in the form of eye drops through the conjunctiva is not reported in the literature. AIM: This study aims to demonstrate the possible central nervous system effects of midazolam administration as eyes drops in Mongolian gerbils. MATERIALS AND METHODS: Fourteen gerbils were randomly assigned to one of two equal sized groups. The active arm received 2 ml of 10 mg midazolam as eye drops in both eyes. Control group received a total of 2 ml of physiological saline (0.9% NaCl). We subjected the gerbils to an adapted "Open Field" to determine the possible effects on central nervous system of midazolam. Gerbils were allowed to move freely in the open field. Before and after the drug administration, locomotor activities of each gerbil have been recorded. Frequency of loss of righting reflex was quantified. RESULTS: Conjunctival midazolam administration resulted with the transient loss of righting reflex (p=0.017) and suppressed exploration motion (p=0.018) in the open field test compared to control subjects. CONCLUSIONS: In the present study, administration of conjunctival midazolam as an eye drop may affect gerbil's locomotor activities and open field behaviors. We argue that, using a sedative and anticonvulsive drug such as midazolam via conjunctival route may be useful in some clinical situations. Therefore, it could be beneficial to develop a new conjunctival formulation of midazolam. Also, there is a need for trials in humans with pharmacokinetic studies.
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Anticonvulsivantes/administración & dosificación , Sistema Nervioso Central/efectos de los fármacos , Gerbillinae , Hipnóticos y Sedantes/administración & dosificación , Locomoción/efectos de los fármacos , Midazolam/administración & dosificación , Administración Oftálmica , AnimalesRESUMEN
We report a case of a 33-year-old woman who developed severe brain edema and pseudo-subarachnoid hemorrhage (SAH) at 36-hour follow-up after successful cardiopulmonary resuscitation for anaphylactic shock as a result of a bee sting. The patient died on the sixth day of the follow-up due to multiple organ failure and brain herniation. Our case suggests that the SAH-like findings on computed tomography scanning were not a new complication ("real" SAH) arising from the bee sting; rather, it was a pseudo-SAH related to prolonged cardiopulmonary resuscitation).
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Anafilaxia/etiología , Venenos de Abeja/efectos adversos , Abejas , Edema Encefálico/etiología , Paro Cardíaco/etiología , Mordeduras y Picaduras de Insectos/complicaciones , Hemorragia Subaracnoidea/etiología , Adulto , Animales , Reanimación Cardiopulmonar/métodos , Servicio de Urgencia en Hospital , Resultado Fatal , Femenino , Humanos , Insuficiencia del Tratamiento , Resultado del TratamientoRESUMEN
A 23-year-old male patient with occipitocervical fixator was scheduled for surgery due to injury to the right forearm. The patient's thyromental distance was 5 cm, mouth opening grade II, sternomental distance 10 cm and Mallampati score 4. Loss of extension and rotation movements of the head was assessed as difficult intubation criteria. Anaesthetic procedures are almost always difficult in patients with occipitocervical fixation; the limited cervical extension complicated both intubation and ventilation. In this report, application of general anaesthesia using awake fibreoptic bronchoscopic intubation (FOB) is described. After routine monitoring of vital signs and premedication, hypopharyngeal topical anaesthesia was accomplished by instilling 10% lidocaine spray twice via the appropriate nostril. Superior laryngeal nerve block was performed with local anaesthetic infiltration of tissues 1 cm below the greater horns of the hyoid bone. Lingual and pharyngeal branches of the glossopharyngeal nerve were blocked. Transtracheal block was performed. Following completion of local anaesthesia, the patient was intubated using the awake FOB technique, on 5 L min(-1) of 100% O2. After muscle relaxation, the patient underwent a microsurgical operation to repair eight tendons, one artery, and one nerve. Surgery lasted for 5 hours. When the extubation criteria were met, the patient was extubated. In cases of occipitocervical fixation, which causes severe limitation of neck movements, the use of awake fibreoptic intubation should be considered.
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Atropa Belladonna poisoning may lead to anticholinergic syndrome. Ingestion of high amounts of the plant may cause lethargy, coma, and even a serious clinical picture leading to death. In this case report, we aimed to present a case with anticholinergic syndrome that developed after ingestion of the fruit called "Deadly Nightshade" in our country.
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Two patients, aged 18 and 28 years, with maxillofacial trauma due to motor vehicle accident, were operated upon by a team of plastic surgeons. In this report we aimed to present our experience with submental intubation procedure in these cases, in which orotracheal or nasotracheal intubation was impossible due to panfacial fracture.
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Background and objectives: Even a small amount of bleeding during endoscopic sinus surgery can corrupt the endoscopic field and complicate the procedure. Various techniques, including induced hypotension, can minimize bleeding during endoscopic sinus surgery. The aim of this study was to compare the surgical vision quality, haemodynamic parameters, postoperative pain, and other effects of magnesium, a hypotensive agent, with that of dexmedetomidine, which was initially developed for short-term sedation in the intensive care unit but also is an alpha 2 agonist sedative. Method: 60 patients between the ages of 18 and 45 years were divided into either the magnesium group (Group M) or the dexmedetomidine group (Group D). In Group M, magnesium sulphate was given at a pre-induction loading dose of 50 mg kg−1 over 10 min and maintained at 15 mg kg−1 h−1; in Group D, dexmedetomidine was given at 1 mcg kg−1 10 min before induction and maintained at 0.6 mcg kg−1 h−1. Intraoperatively, the haemodynamic and respiratory parameters and 6-point intraoperative surgical field evaluation scale were recorded. During the postoperative period, an 11-point numerical pain scale, the Ramsay sedation scale, the nausea/vomiting scale, the adverse effects profile, and itching parameters were noted. Results: Group D showed a significant decrease in intraoperative surgical field evaluation scale scale score and heart rate. The average operation time was 50 min, and Group M had a higher number of prolonged surgeries. No significant difference was found in the other parameters. Conclusions: Due to its reduction of bleeding and heart rate in endoscopic sinus surgery and its positive impacts on the duration of surgery, we consider dexmedetomidine to be a good alternative to magnesium. .
Justificativa e objetivo: Uma quantidade, mesmo pequena, de sangramento durante a cirurgia endoscópica pode alterar o campo endoscópico e dificultar o procedimento. Várias técnicas, incluindo hipotensão induzida, podem minimizar o sangramento durante a cirurgia endoscópica. O objetivo deste estudo foi comparar a qualidade da visibilidade cirúrgica, os parâmetros hemodinâmicos, a dor no período pós-operatório e outros efeitos do sulfato de magnésio, um agente hipotensor, com os da dexmedetomidina, inicialmente desenvolvida para sedação em curto prazo em unidade de terapia intensiva, mas que também é um sedativo agonista alfa-2. Métodos: Foram alocados 60 pacientes entre 18 e 45 anos em dois grupos: Grupo M (magnésio) e Grupo D (dexmedetomidina). No Grupo M, sulfato de magnésio foi administrado pré-indução a uma dose de carga de 50 mg kg−1 por 10 minutos e mantida com 15 mg kg−1 h−1; no Grupo D, dexmedetomidina foi administrada a uma dose de 1 mcg kg−1 10 minutos antes da indução e mantida com 0,6 mcg kg−1 h−1. No período intraoperatório, foram registrados os parâmetros hemodinâmicos e respiratórios e a avaliação do campo cirúrgico com uma escala de seis pontos. Durante o período pós-operatório foram registrados os valores da escala numérica de 11 pontos para avaliar a dor, a escala de sedação de Ramsay, a escala de avaliação de náusea/vômito, o perfil dos efeitos adversos e pruridos. Resultados: O Grupo D apresentou redução significativa da frequência cardíaca e do escore na escala de avaliação do campo cirúrgico intraoperatório. A média do tempo cirúrgico foi de 50 minutos e o Grupo M apresentou um número maior de cirurgias prolongadas. ...
Introducción y objetivo: Una cantidad, aunque sea pequeña, de sangrado durante la cirugía endoscópica puede alterar el campo endoscópico y dificultar el procedimiento. Varias técnicas que incluyen hipotensión inducida pueden minimizar el sangrado durante la cirugía endoscópica. El objetivo de este estudio fue comparar la calidad de la visibilidad quirúrgica, los parámetros hemodinámicos, el dolor en el período postoperatorio y otros efectos del sulfato de magnesio, que es un agente hipotensor, con los de la dexmedetomidina, inicialmente desarrollada para la sedación a corto plazo en la unidad de cuidados intensivos, pero que también es un sedante agonista alfa-2. Método: 60 pacientes con edades entre 18 y 45 años se dividieron en 2 grupos: grupo M (magnesio) y grupo D (dexmedetomidina). En el grupo M, el sulfato de magnesio fue administrado antes de la inducción en dosis de carga de 50 mg kg−1 por 10 min y se mantuvo con 15 mg kg−1 h−1; en el grupo D, la dexmedetomidina fue administrada con una dosis de 1 µg kg−1 durante 10 min antes de la inducción y se mantuvo con 0,6 µg kg−1 h−1. En el período intraoperatorio se registraron los parámetros hemodinámicos y respiratorios y la evaluación del campo quirúrgico con una escala de 6 puntos. Durante el postoperatorio también se registraron la escala numérica de 11 puntos para evaluar el dolor, la escala de sedación de Ramsay, la escala de evaluación de náuseas/vómito, el perfil de los efectos adversos y los pruritos. Resultados: El grupo D tuvo una reducción significativa de la frecuencia cardíaca y de la puntuación en la escala de evaluación del campo quirúrgico intraoperatorio. La media del tiempo quirúrgico fue de 50 min, y el grupo M tuvo un número mayor de ...
Asunto(s)
Humanos , Adulto , Sinusitis/cirugía , Dexmedetomidina/farmacología , Hipotensión/inducido químicamente , Sulfato de Magnesio/farmacología , Periodo Posoperatorio , Ensayos Clínicos Controlados Aleatorios como Asunto/instrumentaciónRESUMEN
The Cavalieri estimator using a point grid is used to estimate the volume of three-dimensional structures based on two-dimensional slices of the object. The size of the components of intracranial neural structures should have proportional relations among them. The volume fraction approach of stereological methods provides information about volumetric relations of the components of structures. The purpose of our study is to estimate the volume and volume fraction data related to the cerebrum, cerebellum and brain stem. In this study, volume of the total brain, cerebrum, cerebellum and brain stem were estimated in 24 young Turkish volunteers (12 males and 12 females) who are free of any neurological symptoms and signs. The volume and volume fraction of the total brain, cerebrum, cerebellum and brain stem were determined on magnetic resonance (MR) images using the point-counting approach of stereological methods. The mean (+/-SD) total brain, cerebrum and cerebellum volumes were 1,202.05 +/- 103.51, 1,143.65 +/- 106.25 cm3 in males and females, 1,060.0 +/- 94.6, 1,008.9 +/- 104.3 cm3 in males and females, 117.75 +/- 10.7, 111.83 +/- 8.0 cm3 in males and females, respectively. The mean brain stem volumes were 24.3 +/- 2.89, 22.9 +/- 4.49 cm3 in males and females, respectively. Our results revealed that female subjects have less cerebral, cerebellar and brain stem volumes compared to males, although there was no statistically significant difference between genders (P > 0.05). The volume ratio of the cerebrum to total brain volume (TBV), cerebellum to TBV and brain stem to TBV were 88.16 and 88.13% in males and females, 9.8 and 9.8% in males and females, 2.03 and 2.03% in males and females, respectively. The volume ratio of the cerebellum to cerebrum, brain stem to cerebrum and brain stem to cerebellum were 11.12 and 11.16% in males and females, 2.30 and 2.31% in males and females, 20.7 and 20.6% in males and females, respectively. The difference between the genders was not statistically significant (P > 0.05). Our results revealed that the volumetric composition of the cerebrum, cerebellum and brain stem does not show sexual dimorphism.