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1.
Niger J Clin Pract ; 23(5): 704-710, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32367880

RESUMO

OBJECTIVE: This study aimed to evaluate the efficacy of kinesiotaping (KT) and Extracorporeal Shock Wave therapy (ESWT) for patients with acute/subacute (complaints exist <3 months) lateral epicondylitis(LE) in terms of pain control, hand grip strength, and functionality. METHODS: In total, 40 patients with newly diagnosed LE (27 females and 13 males with a mean age of 42.6 ± 8.4 years) were randomly allocated to receive a 3-week treatment of either KT for 5 days a week (n = 20) or ESWT once a week (n = 20). Patients were evaluated by the visual analog scale (VAS), hand grip strength (HGS), Roles and Maudsley scale (RMS), and quick DASHat baseline, after 4 weeks, and after 8 weeks of the treatment. RESULTS: Both KT and ESWT could achieve significant improvements in VAS, HGS, RMS, and Q-Dash after 4 and 8 weeks of treatment. However, these improvements were more prominent in the KT group compared with ESWT after 4 and 8 weeks. KT group achieved lower VAS scores, higher HGS, lower RMS compared with ESWT (all P < 0.05). CONCLUSION: Both KT and ESWT could significantly improve pain, hand strength, and functionality in patients with newly diagnosed LE. However, these improvements were more prominent in the KT group. Considering the feasibility and the low cost of KT compared with ESWT, we recommend that KT should be considered for treating patients with newly diagnosed LE.


Assuntos
Fita Atlética , Tratamento por Ondas de Choque Extracorpóreas , Cotovelo de Tenista , Adulto , Feminino , Força da Mão , Humanos , Masculino , Pessoa de Meia-Idade , Manejo da Dor , Estudos Prospectivos , Cotovelo de Tenista/fisiopatologia , Cotovelo de Tenista/terapia , Resultado do Tratamento
2.
Clin Exp Obstet Gynecol ; 42(5): 590-4, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26524804

RESUMO

OBJECTIVE: The objective of this study was to assess the frequency of urinary tract infection (UTI) with urine samples obtained via catheterization among women undergoing cesarean delivery at term pregnancy. MATERIALS AND METHODS: A cross-sectional study involving 159 women in whom cesarean delivery was conducted at term pregnancy after a regular follow-up from first to third trimester. For screening and diagnosis of UTI during antenatal period, the authors used dipstick test and microscopic urinalysis, and urine culture was used in the presence of symptomatic UTI unresponsive to initial antibiotic therapy. A urine sample was obtained immediately after insertion of Foley catheter for urine dipstick test, microscopic urinalysis, and culture during cesarean delivery. Obstetric and UTI data were recorded. RESULTS: Of 159 pregnant women, 95 (59.8%) did not develop UTI during antenatal care. There was no patient with symptomatic UTI at the admission for cesarean delivery. The authors found UTI with urine dipstick and microscopic urinalysis in 12 patients and of them, four patients had no history of UTI, and all the remaining eight patients had asymptomatic UTI during antenatal follow-up. UTI according to urine culture was encountered in three patients, two of them had one episode of UTI, and one had two episodes of UTI during antenatal follow-up. CONCLUSIONS: After regular antenatal follow-up screening with urine dipstick, microscopic urinalysis, and counseling of pregnant women regarding UTIs, the frequency of bacteriuria decreases considerably during cesarean delivery.


Assuntos
Cesárea , Complicações Infecciosas na Gravidez/epidemiologia , Infecções Urinárias/epidemiologia , Adulto , Estudos Transversais , Feminino , Grécia/epidemiologia , Humanos , Gravidez , Complicações Infecciosas na Gravidez/microbiologia , Complicações Infecciosas na Gravidez/urina , Terceiro Trimestre da Gravidez , Cuidado Pré-Natal , Urinálise , Cateterismo Urinário , Infecções Urinárias/microbiologia , Infecções Urinárias/urina , Adulto Jovem
3.
Eur Rev Med Pharmacol Sci ; 18(11): 1657-60, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24943978

RESUMO

A 37-year-old nulligravid woman presented with a 2-year history of uterine prolapse along with mixed incontinence. Gynecological examination confirmed third degree cystocele and uterine prolapse. Renal ultrasonography showed enlarged kidneys and marked dilation of the bilateral pelvicalyceal system. She was hospitalized and a ring pessary was inserted after bladder catheterization. Her preoperative evaluation was performed and the patient was operated one month after her first admission. Anterior colporrhaphy along with Kurt Extraperitoneal Ligamentopexy was performed without any complication. A control visit on second postoperative month revealed recovery of incontinence symptoms and no prolapse was observed. To our knowledge this is the first reported treatment of a case with bilateral hydronephrosis due to uterine prolapse that were corrected and overcame with a novel minimally invasive extraperitoneal approach by fixation of bilateral round ligaments to the rectus fascia sheet.


Assuntos
Hidronefrose/cirurgia , Prolapso Uterino/cirurgia , Adulto , Feminino , Humanos , Hidronefrose/diagnóstico por imagem , Hidronefrose/etiologia , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Ultrassonografia , Prolapso Uterino/complicações , Prolapso Uterino/diagnóstico por imagem
4.
Eur J Gynaecol Oncol ; 34(2): 175-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23781593

RESUMO

AIM: Bibliometric studies can be used to evaluate the performance of a country in contributing to the accumulation of medical evidences on a specific topic. The authors aimed to evaluate the contribution of Turkey to the scientific repertory in the field of ovarian cancer. METHODS AND MATERIALS: The authors retrospectively searched papers published in the field of ovarian cancer between 1980 and 2012 by using the Web of Science software. RESULTS: Turkish authors published 400 papers in Science Citation Index (SCI) Expanded indexed journals ranking Turkey 25th globally. Turkey's first publications in this field appeared at the beginning of the 1990s and showed a distinctive acceleration after 2000. Overall, publications from Turkey were cited 2,987 times and the trend of citations increased in 2000. Most of the papers from Turkey in this field were published in the European Journal of Gynaecological Oncology. CONCLUSION: The authors observed a significant improvement in the scientific activity of Turkey in the field of ovarian cancer during last decade.


Assuntos
Pesquisa Biomédica , Neoplasias Ovarianas , Feminino , Humanos , Publicações , Estudos Retrospectivos , Ciência , Turquia
5.
Acta Anaesthesiol Scand ; 53(3): 346-53, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19173689

RESUMO

BACKGROUND: Intrathecal (i.t.) administration of magnesium has been reported to potentiate opioid antinociception in rats and humans. In this prospective, randomized, double-blind, study, we investigated the sensory, motor, and analgesic block characteristics of i.t. magnesium 50 mg compared with fentanyl 25 microg and saline when added to 0.5% bupivacaine (10 mg). METHODS: Ninety ASA I or II adult patients undergoing cesarean section were randomly allocated to receive 1.0 ml of 0.9% sodium chloride in group S, 50 mg of magnesium sulfate (1.0 ml) 5% in group M, or 25 microg of fentanyl (1.0 ml) in group F following 10 mg of bupivacaine 0.5% i.t. We recorded the following: onset and duration of sensory and motor block, maximal sensory block height, the time to reach the maximal dermatomal level of sensory block, and the duration of spinal anesthesia. RESULTS: Magnesium did not shorten the onset time of sensory and motor blockade or prolong the duration of spinal anesthesia. The duration of sensory (P<0.032) and motor (P<0.002) blockade was significantly shorter in M and S groups than in the F group. The time to reach the maximal dermatomal level of sensory block was significantly shorter in the F group than in the S and M groups (P<0.002). CONCLUSION: In patients undergoing cesarean section with spinal anesthesia, the addition of magnesium sulfate (50 mg) i.t. to 10 mg of spinal bupivacaine (0.5%) did not shorten the onset time of sensory and motor blockade or prolong the duration of spinal anesthesia, as seen with fentanyl.


Assuntos
Bupivacaína/administração & dosagem , Bupivacaína/farmacologia , Cesárea/métodos , Fentanila/administração & dosagem , Fentanila/farmacologia , Magnésio/administração & dosagem , Magnésio/farmacologia , Adulto , Combinação de Medicamentos , Feminino , Humanos , Injeções Espinhais , Dor/prevenção & controle , Placebos , Gravidez
6.
Acta Anaesthesiol Scand ; 51(2): 244-51, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17181535

RESUMO

BACKGROUND: The aim of this study was to evaluate the characteristic features of the mechanical responses and membrane potential changes induced by remifentanil in human umbilical arteries (HUAs). The ionic mechanisms underlying the electrophysiological responses were pharmacologically assessed using two K(+) channel blockers. METHODS: Thirty-eight HUAs were obtained. Contraction-relaxation, membrane potential changes and electrical responses of the HUAs were recorded. RESULTS: Remifentanil produced concentration-dependent relaxation in both endothelium-intact and endothelium-denuded HUA rings. Remifentanil produced a significantly greater relaxation response in intact than in denuded HUA rings. In endothelium-intact rings, pre-treatment with L-nitroarginine [N(w)-NITRO-(L)-ARGININE (L-NO-ARG)] or indomethacin decreased the degree of remifentanil-induced relaxation. Remifentanil (10(-9)-10(-6) mol/l) produced a transient concentration-dependent membrane hyperpolarization, which was not decreased by pre-treatment with L-NO-ARG or indomethacin. It also produced a small concentration-dependent hyperpolarization in the presence of charybdotoxin or tetraethylammonium. CONCLUSION: In both endothelium-intact and endothelium-denuded HUAs, remifentanil induces concentration-dependent vasorelaxation and simultaneously releases nitric oxide, prostaglandins and possibly an endothelium-derived hyperpolarizing factor. In addition, it produces hyperpolarization in a dose-dependent manner. Hyperpolarization induced by remifentanil involves the activation of Ca(2+)-dependent and Ca(2+)-independent potassium channels regulated by intracellular Ca(2+).


Assuntos
Analgésicos Opioides/efeitos adversos , Potenciais da Membrana/efeitos dos fármacos , Piperidinas/efeitos adversos , Artérias Umbilicais/efeitos dos fármacos , Endotélio Vascular/efeitos dos fármacos , Endotélio Vascular/fisiologia , Humanos , Potenciais da Membrana/fisiologia , Bloqueadores dos Canais de Potássio/farmacologia , Remifentanil , Artérias Umbilicais/fisiologia
7.
Acta Anaesthesiol Scand ; 49(10): 1514-9, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16223399

RESUMO

BACKGROUND: The addition of intrathecal (IT) magnesium to spinal fentanyl prolongs the duration of spinal analgesia for vaginal delivery. In this prospective, randomized, double-blind, controlled study, we investigated the effect of adding IT magnesium sulphate to bupivacaine-fentanyl spinal anaesthesia. METHODS: One hundred and two ASA I or II adult patients undergoing lower extremity surgery were recruited. They were randomly allocated to receive 1.0 ml of preservative-free 0.9% sodium chloride (group S) or 50 mg of magnesium sulphate 5% (1.0 ml) (group M) following 10 mg of bupivacaine 0.5% plus 25 microg of fentanyl intrathecally. We recorded the following: onset and duration of sensory block, the highest level of sensory block, the time to reach the highest dermatomal level of sensory block and to complete motor block recovery and the duration of spinal anaesthesia. RESULTS: Magnesium caused a delay in the onset of both sensory and motor blockade. The highest level of sensory block was significantly lower in group M than in group S at 5, 10 and 15 min (P < 0.001). The median time to reach the highest dermatomal level of sensory block was 17 min in group M and 13 min in group S (P < 0.05). The mean degree of motor block was also lower in group M at 5, 10 and 15 min (P < 0.001). The median duration of spinal anaesthesia was longer in group M (P < 0.001). CONCLUSION: In patients undergoing lower extremity surgery, the addition of IT magnesium sulphate (50 mg) to spinal anaesthesia induced by bupivacaine and fentanyl significantly delayed the onset of both sensory and motor blockade, but also prolonged the period of anaesthesia without additional side-effects.


Assuntos
Raquianestesia , Anestésicos Intravenosos , Anestésicos Locais , Bupivacaína , Fentanila , Sulfato de Magnésio , Adulto , Método Duplo-Cego , Feminino , Hemodinâmica/efeitos dos fármacos , Humanos , Injeções Espinhais , Perna (Membro)/cirurgia , Sulfato de Magnésio/administração & dosagem , Masculino , Medição da Dor
8.
Eur J Anaesthesiol ; 22(5): 386-91, 2005 May.
Artigo em Inglês | MEDLINE | ID: mdl-15918389

RESUMO

BACKGROUND AND OBJECTIVE: This prospective, randomized, double-blind, controlled study was designed to test the effect of pre-anaesthetic administration of dexmedetomidine, given as a single intravenous (i.v.) dose, on postoperative pain scores and morphine consumption in patients receiving patient-controlled morphine after abdominal surgery. METHODS: Sixty patients were randomly allocated to receive dexmedetomidine (1 microg kg(-1)) or saline 10 min before induction of anaesthesia. Twenty minutes before the end of surgery, all patients received a standardized (0.1 mg kg(-1)) loading dose of morphine. They were then allowed to use a patient-controlled analgesia (PCA) device giving bolus doses of morphine (0.02 mg kg(-1)). Pain, discomfort and sedation scores; cumulative morphine consumption; time to extubation; time to recovery; and any side-effects were recorded after recovery and at 1, 2, 6, 12 and 24 h after the start of PCA. RESULTS: The mean time to extubation at the end of anaesthesia and recovery time were similar in both groups. There were no significant differences between groups with regard to mean pain, discomfort, sedation and nausea scores. Cumulative morphine consumption was significantly lower in the dexmedetomidine group at 6, 12 and 24 h (P < 0.05). The incidence of side-effects did not differ between the groups. CONCLUSIONS: A single i.v. dose of dexmedetomidine (1 microg kg(-1)) given 10 min before induction of anaesthesia significantly reduced postoperative morphine consumption at identical pain scores compared to control, but had no effect on postoperative recovery time.


Assuntos
Analgesia Controlada pelo Paciente/métodos , Analgésicos não Narcóticos/administração & dosagem , Dexmedetomidina/administração & dosagem , Morfina/administração & dosagem , Dor Pós-Operatória/prevenção & controle , Medicação Pré-Anestésica/métodos , Adulto , Analgesia Controlada pelo Paciente/efeitos adversos , Analgésicos não Narcóticos/efeitos adversos , Analgésicos Opioides/administração & dosagem , Analgésicos Opioides/efeitos adversos , Dexmedetomidina/efeitos adversos , Método Duplo-Cego , Feminino , Hemodinâmica/efeitos dos fármacos , Humanos , Injeções Intravenosas , Intubação Intratraqueal/métodos , Masculino , Pessoa de Meia-Idade , Morfina/efeitos adversos , Medição da Dor/métodos , Complicações Pós-Operatórias/prevenção & controle , Medicação Pré-Anestésica/efeitos adversos , Estudos Prospectivos , Fatores de Tempo
10.
Eur J Anaesthesiol ; 21(1): 60-5, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-14768925

RESUMO

BACKGROUND AND OBJECTIVE: To compare the antiemetic efficacy of ondansetron with two different hypnotic drugs (propofol 15 mg, midazolam 1 and 2 mg) for the treatment of established postoperative nausea and vomiting (PONV). METHODS: Four-hundred-and-fifty-three patients scheduled for elective gynaecological or abdominal surgery were enrolled. One-hundred-and-twenty patients (26%) experienced postoperative emesis, and when nausea scores reached 2 or greater on a five-point scale, they were randomized to receive intravenously: propofol 15 mg (1.5 mL) in Group P, midazolam 1 mg in Group M1, midazolam 2 mg in Group M2 and ondansetron 4 mg in Group O. RESULTS: Four patients (13.3%) in Group P, 13 patients (43.3%) in Group M1, five patients (16.6%) in Group M2 and one patient (3.3%) in Group O required a second dose of the study drug. After administration of the study drugs, nausea scores were significantly lower in all groups than before these drugs were given. No patient had a sedation score over 3 (the patients remained awake and/or responded to verbal contact). The sedative effects of midazolam and propofol lasted for a much shorter time than the antiemetic effects of these drugs. CONCLUSIONS: Propofol and midazolam used in subhypnotic doses were as effective as ondansetron in treating PONV in patients undergoing abdominal or gynaecological surgery without untoward sedative or cardiovascular effects.


Assuntos
Anestésicos Intravenosos/uso terapêutico , Antieméticos/uso terapêutico , Midazolam/uso terapêutico , Ondansetron/uso terapêutico , Náusea e Vômito Pós-Operatórios/tratamento farmacológico , Propofol/uso terapêutico , Abdome/cirurgia , Adolescente , Adulto , Idoso , Relação Dose-Resposta a Droga , Feminino , Procedimentos Cirúrgicos em Ginecologia , Humanos , Masculino , Pessoa de Meia-Idade
11.
Eur J Anaesthesiol ; 20(8): 668-73, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12932071

RESUMO

BACKGROUND AND OBJECTIVE: To compare the antiemetic efficacy of ondansetron with two different hypnotic drugs (propofol 15 mg, midazolam 1 and 2 mg) for the treatment of established postoperative nausea and vomiting (PONV). METHODS: Four-hundred-and-fifty-three patients scheduled for elective gynaecological or abdominal surgery were enrolled. One-hundred-and-twenty patients (26%) experienced postoperative emesis, and when nausea scores reached 2 or greater on a five-point scale, they were randomized to receive intravenously: propofol 15 mg (1.5 mL) in Group P, midazolam 1 mg in Group M1, midazolam 2 mg in Group M2 and ondansetron 4 mg in Group O. RESULTS: Four patients (13.3%) in Group P, 13 patients (43.3%) in Group M1, five patients (16.6%) in Group M2 and one patient (3.3%) in Group O required a second dose of the study drug. After administration of the study drugs, nausea scores were significantly lower in all groups than before these drugs were given. No patient had a sedation score over 3 (the patients remained awake and/or responded to verbal contact). The sedative effects of midazolam and propofol lasted for a much shorter time than the antiemetic effects of these drugs. CONCLUSIONS: Propofol and midazolam used in subhypnotic doses were as effective as ondansetron in treating PONV in patients undergoing abdominal or gynaecological surgery without untoward sedative or cardiovascular effects.


Assuntos
Antieméticos/uso terapêutico , Hipnóticos e Sedativos/uso terapêutico , Midazolam/uso terapêutico , Ondansetron/uso terapêutico , Náusea e Vômito Pós-Operatórios/prevenção & controle , Propofol/uso terapêutico , Abdome/cirurgia , Adulto , Feminino , Procedimentos Cirúrgicos em Ginecologia , Humanos , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Fatores de Tempo , Resultado do Tratamento
12.
Br J Anaesth ; 91(2): 209-13, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12878619

RESUMO

BACKGROUND: Studies of pre-emptive analgesia in humans have shown conflicting results. This prospective, randomized, double-blind, controlled study was designed to test the hypothesis that a reduction in postoperative morphine consumption can be achieved by tramadol administered after induction of anaesthesia. METHODS: Ninety patients were allocated randomly to receive i.v. tramadol (1 mg kg(-1)) (Group T), morphine (0.1 mg kg(-1)) (Group M) or saline 2 ml (Group S) after induction of anaesthesia. At peritoneal closure, a standardized (0.1 mg kg(-1)) morphine loading dose was given to all patients for postoperative pain management. Patients were allowed to use a patient-controlled analgesia (PCA) device giving bolus doses of morphine 0.025 mg kg(-1). Discomfort, sedation, pain scores, cumulative morphine consumption, and side-effects were recorded at 1, 2, 6, 12 and 24 h after the start of PCA. RESULTS: There were no significant differences between groups in mean pain, discomfort, and sedation scores at any study period. Cumulative morphine consumption was significantly lower in Group M at 12 and 24 h after starting the PCA than in Group S. In Group T, it was lower only after 24 h (28% less in Group M and 17% less in Group T; P<0.017). There were no significant differences in morphine consumption between Groups T and M. CONCLUSIONS: Tramadol (1 mg kg(-1)), administered after induction of anaesthesia, offered equivalent postoperative pain relief, and similar recovery times and postoperative PCA morphine consumption compared with giving morphine 0.1 mg kg(-1). These results also suggest that presurgical exposure to systemic opioid analgesia may not result in clinically significant benefits .


Assuntos
Analgésicos Opioides/uso terapêutico , Morfina/uso terapêutico , Dor Pós-Operatória/prevenção & controle , Tramadol/uso terapêutico , Abdome/cirurgia , Adulto , Analgesia Controlada pelo Paciente , Analgésicos Opioides/administração & dosagem , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Morfina/administração & dosagem , Medição da Dor/métodos , Estudos Prospectivos
13.
Eur J Anaesthesiol ; 20(5): 416-21, 2003 May.
Artigo em Inglês | MEDLINE | ID: mdl-12790216

RESUMO

BACKGROUND AND OBJECTIVE: This double-blind randomized study tested whether the addition of magnesium or ketamine to morphine for intravenous patient-controlled analgesia resulted in improved analgesic efficacy and lower pain scores compared with morphine patient-controlled analgesia alone after major abdominal surgery. METHOD: Ninety patients (3 x 30) were randomly allocated to receive either morphine 0.4 mg mL(-1) (Group M) by patient-controlled analgesia, morphine 0.4mg mL(-1) + MgSO4 30mg mL(-1) (Group MM) or morphine 0.4 mg mL(-1) + ketamine 1 mg mL(-1) (Group MK). Postoperative analgesia was started when the verbal rating scale was > or = 2. Patients were first given a standardized loading dose (0.05 mg kg(-1)) of the study solution. They were then allowed to use bolus doses of this solution (0.0125 mg kg(-1) every 20 min without time limit). Discomfort, sedation, pain scores, cumulative morphine consumption and adverse effects were recorded up to 24 h after the start of the patient-controlled analgesia. RESULTS: The level of discomfort, level of sedation and verbal rating scores decreased significantly with time in all groups (P < 0.05). Both verbal rating and discomfort scores were significantly lower in Groups MM and MK at 15, 30 and 60 min compared with Group M (P < 0.001). Cumulative morphine consumption after 12 and 24 h was significantly higher in Group M alone (median 26 and 49 mg, respectively) compared with Group MM (24.2 and 45.7 mg) and Group MK (24.4 and 46.5 mg). CONCLUSIONS: In the immediate postoperative period, the addition of magnesium or ketamine to morphine for intravenous patient-controlled analgesia led to a significantly lower consumption of morphine. However, these differences are unlikely to be of any clinical relevance.


Assuntos
Analgesia Controlada pelo Paciente , Analgésicos Opioides/uso terapêutico , Anestésicos Combinados , Anestésicos Dissociativos/uso terapêutico , Ketamina/uso terapêutico , Magnésio/uso terapêutico , Morfina/uso terapêutico , Dor Pós-Operatória/tratamento farmacológico , Abdome/cirurgia , Análise de Variância , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medição da Dor , Resultado do Tratamento
14.
Acta Anaesthesiol Scand ; 47(1): 65-9, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12492799

RESUMO

BACKGROUND: Remifentanil can cause transient instability in hemodynamic variables. However this change may not be solely the result of autonomic or central nervous system inhibition or of centrally mediated vagal stimulation. In this study, the aim was to examine the direct effects of remifentanil on isolated thoracic aorta strips in vitro. METHODS: Forty-five Wistar rat thoracic aorta rings were isolated, and contraction-relaxation responses were recorded. RESULTS: In aortic rings precontracted with phenylephrine or potassium chloride, remifentanil produced concentration-dependent relaxation in both endothelium-intact and denuded rings (P<0.001). Remifentanil induced significantly greater relaxation in intact rings than in those denuded of endothelium, regardless of whether they were precontracted with phenylephrine hydrochloride or KCl (P<0.001). When the endothelium was present, remifentanil produced greater relaxation in KCl-contracted rings than in PE-contracted rings at lower concentrations (10-9 and 10-8), and similar relaxation at higher concentrations (10-7 and 10-6). However, when the endothelium was removed, relaxation was similar in both solutions, at all concentrations (10-9 to 10-6). In intact rings, pretreatment with L-NO-ARG or indomethacin reduced the degree of remifentanil-induced relaxation. In Ca+ +/- free media, calcium-dependent KCl contractions were inhibited in a dose-dependent manner by remifentanil (P<0.001). CONCLUSION: Remifentanil vasodilates by an endothelium-dependent mechanism, involving prostacyclin and nitric oxide released from the endothelium. Its endothelium-independent vasodilation probably occurs via the suppression of voltage-sensitive Ca++ channels.


Assuntos
Analgésicos Opioides/farmacologia , Aorta Torácica/efeitos dos fármacos , Músculo Liso Vascular/efeitos dos fármacos , Piperidinas/farmacologia , Vasodilatação/efeitos dos fármacos , Acetilcolina/farmacologia , Animais , Bloqueadores dos Canais de Cálcio/farmacologia , Relação Dose-Resposta a Droga , Endotélio Vascular/efeitos dos fármacos , Epoprostenol/fisiologia , Técnicas In Vitro , Óxido Nítrico/fisiologia , Fenilefrina/antagonistas & inibidores , Fenilefrina/farmacologia , Cloreto de Potássio/antagonistas & inibidores , Cloreto de Potássio/farmacologia , Ratos , Ratos Wistar , Remifentanil , Vasoconstritores/antagonistas & inibidores , Vasoconstritores/farmacologia
15.
Anaesth Intensive Care ; 30(4): 428-32, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12180579

RESUMO

This randomized controlled trial examined the effects of preoperative oral erythromycin or nizatidine on gastric pH and volume. Sixty patients, ASA 1 and 2 status scheduled for elective surgery were studied. All subjects received oral study medication with 10 ml of water 60 minutes prior to surgery. Patients in Group 1 (n=20) were given erythromycin 200 mg, in Group 2 (n=20) nizatidine 300 mg, and in Group 3 (n=20) placebo capsule. A nasogastric tube was inserted immediately after anaesthesia induction. Gastric content was aspirated, and volume and pH recorded. pH values determined in Group 1 were 5.6+/-1.87; in Group 2, 5.65+/-1.92 and in Group 3, 3.5+/-1.93. There was no statistical difference between Groups 1 and 2, but there was a statistically significant difference between Group 3 and Groups 1 and 2 (P<0.001). The volume of gastric content was 10.25+/-6.65 ml in Group 1, 10.3+/-6.29 ml in Group 2 and 20.25+/-16.72 ml in Group 3. Again, there was no statistical difference between Groups 1 and 2, but there was a statistically significant difference between Group 3 and Groups 1 and 2 (P<0.05). The proportion of patients considered "at risk" of significant lung injury should aspiration occur was 10% of Group 1, 5% of Group 2 and 20% of Group 3 (not statistically different). We conclude that oral erythromycin and nizatidine given one hour prior to surgery are effective in reducing gastric pH and volume.


Assuntos
Antibacterianos/administração & dosagem , Antiulcerosos/administração & dosagem , Eritromicina/administração & dosagem , Ácido Gástrico/metabolismo , Conteúdo Gastrointestinal/efeitos dos fármacos , Antagonistas dos Receptores H2 da Histamina/administração & dosagem , Nizatidina/administração & dosagem , Cuidados Pré-Operatórios , Administração Oral , Adulto , Antibioticoprofilaxia , Método Duplo-Cego , Feminino , Determinação da Acidez Gástrica , Esvaziamento Gástrico/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade
16.
J Vet Med A Physiol Pathol Clin Med ; 49(5): 251-5, 2002 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12126139

RESUMO

The effects of vitamin E on pH value, total protozoa counts, volatile fatty acid (VFA), ammonia nitrogen and lactate levels were examined using an in vitro ruminal incubation system. The ruminal fluid (100 ml) of the first and second group was supplemented with 0.4 mg or 0.8 mg of vitamin E, respectively. Samples were taken immediately before and following 3, 6, 12 and 24 h of incubation at 39 degrees C and analysed for the total protozoa counts, the pH and the levels of ammonia nitrogen, lactate and VFA. Levels of propionate at 24 h and ammonia nitrogen at 12 and 24 h were significantly higher in the second group than in the control. In contrast, the levels of butyrate at 6, 12 and 24 h and lactate at 6, 12 and 24 h were lower in the second group than in the control. Propionate at 24 h, acetate levels at 6, 12 and 24 hand ammonia nitrogen levels at 6, 12 and 24 h and total rumen protozoa counts at 6, 12 and 24 h were significantly higher in the second group as compared with control. In contrary, butyrate levels at 6, 12 and 24 h, lactate levels at 6, 12 and 24 h were lower in second group than in control. There was no statistically significant difference among the groups in the pH values. In conclusion, the addition of vitamin E to in vitro ruminal fluid was found to increase the concentrations of acetate and propionate, total counts of protozoa, levels of ammonia nitrogen, but to decrease the butyrate and lactate levels of the ruminal aliquots in in vitro ruminal fermentation.


Assuntos
Antioxidantes/farmacologia , Rúmen/efeitos dos fármacos , Vitamina E/farmacologia , Amônia/análise , Animais , Bovinos , Relação Dose-Resposta a Droga , Eucariotos/efeitos dos fármacos , Eucariotos/crescimento & desenvolvimento , Ácidos Graxos Voláteis/análise , Fermentação/efeitos dos fármacos , Concentração de Íons de Hidrogênio , Técnicas In Vitro , Masculino , Distribuição Aleatória , Rúmen/metabolismo , Rúmen/parasitologia , Temperatura , Fatores de Tempo
17.
Rev. chil. obstet. ginecol ; 59(2): 135-45, 1994. tab, ilus
Artigo em Espanhol | LILACS | ID: lil-143921

RESUMO

Se aplicó una encuesta a nivel nacional a 4.522 alumnos y a 334 profesores. Los resultados son extrapolables a los jóvenes mayores de 15 años, que habitan en los grandes centros urbanos del país. La población que habita en zonas rurales tendría una tendencia más tradicional y conservadora en términos de actitudes y conductas. Lo anterior implica que los resultados son extrapolables a 330.000 jóvenes, aproximadamente. Existe un buen conocimiento teórico, que se invalida por creencias erróneas, como creer que el Sida no se contagia si se mantienen relaciones dentro del mismo grupo social, que se evita con un aseo genital postcoital o consultando por la conducta sexual previa de la pareja. El 44,2 por ciento de los alumnos encuestado se encuentra sexualmente activo. El 32,6 por ciento de los hombres y el 10,8 por ciento de las mujeres, sexualmente activos, mantiene relaciones sexuales al margen de su pareja estable. El 72,9 por ciento considera que no hay ninguna posibilidad que se contagie de Sida o ésta es muy baja. Las creencias erróneas, el alto nivel de actividad sexual, la precocidad en el inicio de las relaciones sexuales, la actividad sexual con prostitutas y promiscuidad en los encuestados, junto con la generalizada y falsa percepción que no hay posibilidades que se contagien, confirma que nuestra juventud se encuentra en muy alto riesgo de contraer el virus del Sida y se requiere de una toma de conciencia nacional y de una política gubernamental que dé solución global urgente a este problema


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto , Conhecimentos, Atitudes e Prática em Saúde , Comportamento Sexual , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Chile , População Urbana/estatística & dados numéricos , Educação Sexual , Parceiros Sexuais , Estudantes , Saúde da População Urbana/estatística & dados numéricos
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