Volume kinetics of lactated Ringer's solution during induction of epidural versus general anesthesia in elderly patients / 中华麻醉学杂志

Objective To compare the volume kinetics of lactated Ringer' s solution during induction of general and epidural anesthesia in elderly patients.Methods Forty ASA Ⅰ or Ⅱ patients,aged 66-86 yr,weighing 45-86 kg,undergoing elective surgery,were studied.In epidural anesthesia group (n =20),lactated Ringer' s solution was infused intravenously starting from 10 min before epidural anesthesia was performed with local anesthetics.In general anesthesia group (n =20),lactated Ringer' s solution 1000 ml was infused intravenously over 60 min starting from 20 min before induction of anesthesia.Arterial blood samples were obtained every 5 min for measurement of hemoglobin concentrations.The plasma dilution,volume increase,and volume expansion efficacy were calculated.Results The plasma dilution,volume increase and volume expansion were significantly higher at 30-60 min of lactated Ringer' s solution infusion in general anesthesia group than in epidural anesthesia group (P ＜ 0.05 or 0.01).Conclusion The volume expansion of lactated Ringer' s solution is greater in elderly patients during induction of general anesthesia than that during induction of epidural anesthesia.

Clinical comparison between local anaesthesia and epidural block anaesthesia in tension-free hernioplusties / 中国基层医药

Objective To investigate and to compare the clinical curative efficacies of local anaesthesia and epidural block anaesthesia in tension-free hemioplasties. Methods 89 patients hospitalized were randomly divided in-to two groups, with each of them respectively adopting the two types of anaesthesia methods (local anaesthesia and epidural anaesthesia) to cure inguinal hernia,operation methods is tension-free hernioplasties. Results The results show that in terms of duration of operation, early-phase activities after operation, time of hospitalization, post-opera-tion pains,early-phase complication after operation and treatment expenses etc, local anaesthesia is undoubtedly supe-rior to epidural block anaesthesia. Conclusion Tensioa-free hernioplasties under local anaesthesia is worth clinical promotion to benefit all the patients.

Anestesia peridural continua para cesariana em paciente portadora de arterite de Takayasu / Continue epidural anesthesia for caesarean section in a patient with Takayasu's disease

A melhor técnica anestésica para pacientes com arterite de Takayasu é controversa.A anestesia regional tem sido questionada por alguns autores, devido ao risco de hipotensão arterial. A anestesia geral é também questionada por dificultar a avaliação da função cerebral, que pode estar alterada nestes pacientes, além das repercussões na pressão arterial. Relata-se neste estudo o caso de uma pacientede 31 anos, 35 semanas de idade gestacional, portadora de arterite de Takayasuhá 2 anos, em uso de prednisona, submetida à cesariana sob anestesia peridural contínua. A cirurgia transcorreu sem alterações pressóricas, respiratórias ou de consciência; foi necessário o uso de metoprolol (3mg EV) para controle da frequência cardíaca. A técnica anestésica empregada possibilitou titular doses de anestésicos locais para obtenção de nível adequado de anestesia necessário para a realização de operação cesariana, com mínimo risco de hipotensão arterial.

The best anesthetic technique for patients with Takayasu arteritis is controversial. Regional anesthesia has been questioned due to the risk of arterial hypotension by several authors. General anesthesia now is also being questioned for hindering the evaluation of brain function, which can be altered in these patients, in addition to its repercussions on blood pressure. A case of Takayasu arteritis with 2 yearsduration was reported in a 31 year-old patient. The patient at 35 weeks of gestation received prednisone and was submitted to caesarean section under continuous epidural anesthesia. During surgery there were no alterations in arterial blood pressure, respiration or consciousness. Metoprolol (3mg endovenous) was necessary to control heart rate. The anesthetic technique used enabled titration of local anesthetic doses to obtain an adequate level of anesthesia required to perform caesarean section with minimum risk of arterial hypotension.

Comparative Analysis of Local Anaesthesia and Epidural Anaesthesia in Tension-Free Herniorrhaphy / 中国普外基础与临床杂志

Objective To investigate the most suitable anaesthesia method for the tension-free herniorrhaphy.Methods A total of 422 unilateral inguinal hernia cases from 2002 to 2005 were collected and randomly divided into the local anaesthesia group and epidural anaesthesia group. Observation indices and some relative data, such as operative duration, date of ambulation, date of foodintake, length of hospital stay, operation-correlated complications, anaesthesia complications, usage rate of ancillary drug, satisfactory rate for anesthesia, cost of hospitalization, were included and recorded in the questionnaire, and all the patients who took the tension-free herniorrhaphy were asked to answer it as the follow-up research. Results It was found that the occurrence of postoperative anaesthetic complications, the cost of hospitalization, length of stay of local anaesthesia group were significantly less than those of epidural anaesthesia group, and the date of moving and the date of foodintake were also significantly earlier than those of the other group (P0.05). Conclusion The local anaesthesia is suitable for most of the tension-free herniorrhaphy, and it may be used as the conventional anaesthetic method.