RESUMO
A template was devised for rapid analysis of the intervals, slopes and peak amplitude of the Sonoclot Signature.
Assuntos
Coagulação Sanguínea/fisiologia , Monitorização Intraoperatória/instrumentação , Transtornos da Coagulação Sanguínea/diagnóstico , Transtornos da Coagulação Sanguínea/etiologia , Plaquetas/fisiologia , Viscosidade Sanguínea , Ponte Cardiopulmonar/efeitos adversos , Elasticidade , Desenho de Equipamento , Fibrina/biossíntese , Fibrinogênio/metabolismo , Humanos , Complicações Intraoperatórias/diagnóstico , Transplante de Fígado/efeitos adversos , Contagem de Plaquetas , Complicações Pós-Operatórias , Processamento de Sinais Assistido por Computador/instrumentação , Fatores de Tempo , UltrassomRESUMO
An abrupt decrease in end-tidal carbon dioxide (CO2) occurred in an anesthetized male who was placed in the head down position during radical perineal prostatectomy. The end-tidal CO2 was restored after insertion of a wet pack into the operative site, which strongly indicated venous air embolism as the cause. Predisposing factors, detection, and treatment of venous air embolism in this setting are discussed.
Assuntos
Embolia Aérea/etiologia , Complicações Intraoperatórias , Prostatectomia/efeitos adversos , Adenocarcinoma/cirurgia , Idoso , Dióxido de Carbono/análise , Decúbito Inclinado com Rebaixamento da Cabeça , Humanos , Masculino , Oxigênio/sangue , Períneo/cirurgia , Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Fatores de Risco , Tampões de Gaze Cirúrgicos , Volume de Ventilação Pulmonar , Veias , ÁguaAssuntos
Cateterismo de Swan-Ganz/instrumentação , Ponte de Artéria Coronária , Traumatismos Cardíacos/etiologia , Idoso , Complexos Cardíacos Prematuros/complicações , Cateterismo de Swan-Ganz/efeitos adversos , Ponte de Artéria Coronária/efeitos adversos , Seguimentos , Ventrículos do Coração/lesões , Humanos , MasculinoRESUMO
Arterial blood pressure measurements (y) obtained from forefinger cuffs were compared with standard arm cuff readings (x) in 41 anaesthetised children and young adults. Mean (SD) differences between cuff measurements were -0.21 (9.15), -1.56 (10.2) and 1.23 (9.12) mmHg for the systolic, mean and diastolic pressures respectively. The correlation for systolic blood pressures (r = 0.85, y = 0.99x + 0.58, sy.x = 9.15) was better than that for mean or diastolic pressures. Oscillometric finger cuffs are suitable for monitoring the systolic blood pressure in children and young adults during general anaesthesia.
Assuntos
Anestesia Geral , Monitores de Pressão Arterial , Dedos/irrigação sanguínea , Monitorização Intraoperatória/instrumentação , Adolescente , Adulto , Braço/irrigação sanguínea , Criança , Diástole , Humanos , Oscilometria , Fluxo Sanguíneo Regional , SístoleRESUMO
Secondary oxygen was added to air entrained by the primary jet of a fixed performance mask. Twenty such masks, in each of six groups rated at 24%, 28%, 31%, 35%, 40% and 50%, gave higher O2 percentages equivalent to those calculated from an equation that related the O2 concentration to the secondary flow. Actual values of both were closely correlated, with regression slopes and intercepts similar to those derived from this equation. This technique is simple and predictable in altering the composition of an air-oxygen mixture delivered to the patient.
Assuntos
Máscaras , Oxigenoterapia/instrumentação , Ar , Humanos , Matemática , Oxigênio/administração & dosagem , Fatores de TempoRESUMO
The effect of anticholinergic pre-treatment on the hemodynamic changes during rigid bronchoscopy was studied. Eighty four adult patients in three groups received intravenous saline (control), atropine or glycopyrrolate several minutes before anesthesia and venturi ventilation with intermittent thiopentone and suxamethonium. The rises in heart rate and blood pressure and the incidence of cardiac dysrhythmias were least in the control group. Transient bradycardia rarely occurred, even in the control group, despite repeat doses of suxamethonium. Although most of the results were not statistically significant, they suggest that preoperative anticholinergic administration may aggravate some of the cardiovascular effects of bronchoscopy resulting from sympathoadrenal stimulation.
Assuntos
Atropina/farmacologia , Broncoscopia/métodos , Glicopirrolato/farmacologia , Hemodinâmica/efeitos dos fármacos , Parassimpatolíticos/farmacologia , Medicação Pré-Anestésica , Pirrolidinas/farmacologia , Idoso , Arritmias Cardíacas/induzido quimicamente , Pressão Sanguínea/efeitos dos fármacos , Broncoscopia/efeitos adversos , Frequência Cardíaca/efeitos dos fármacos , Humanos , Pessoa de Meia-Idade , Distribuição AleatóriaRESUMO
A simple instrument for measuring adductor pollicis tension in children has been devised. The thumb sensor utilizes a thin conical rubber seal obtained from a 5, 10 or 20 ml Becton Dickinson syringe. A syringe barrel of similar size, fixed at right angles to the sensor, forms a handle for the fist. The sensor is linked to a pressure transducer with non-compliant tubing. Pressure output of the saline-filled system was found to be linearly related to the force exerted on each size of the sensor. In 20 children, aged two to eight years, the device, fitted in turn with the 5, 10 and 20 ml syringe seal sensors, gave train-of-four (TOF) ratios which showed close correlation (coefficient r = 0.96, 0.93, 0.95) and agreement (regression slope b = 0.97, 0.95, 0.98) with those of a force transducer. Thus, inspection of the displayed TOF pressure pulses gives a rapid and reliable estimate of neuromuscular blockade.