Application of detrusor power curve analysis in urodynaimc studies / 中华泌尿外科杂志

Objective To establish a calculation method for the voiding work parameters by using the detrusor power curve and to evaluate its clinic efficacy.Methods From January 2001 to January 2011,132 male patients with benign prostate hyperplasia who underwent urodynamic tests were retrospectively reviewed.The patients' age ranged from 45 to 84 years old (mean 57 years old).All patients had no previous history of neurological disease and no positive findings in neurological examinations.The voiding work of bladder,the voiding power of bladder and voiding energy consumption were calculated by using the detrusor power curve method and the linearized passive urethral resistance relation analysis was conducted.According to the detrusor status,all patients were divided into the decreased detrusor pressure group,the normal detrusor pressure group and the increased detrusor pressure group.Meanwhile,normal urethral resistance group and the increased urethral resistance group were classified according to the urethral resistance status.The detrusor pressure at maximal flow rate (PdetQmax),the maximal flow rate (Qmax),the projected isovolumetric pressure (PIP),the voiding work,the voiding power and the voiding energy consumption were compared among the different groups.Results There were 56 cases,58 cases,18 cases in the decreased,normal and the increased detrusor pressure group respectively.The voiding work were (1.1 ± 0.5)J,(1.7± 0.7)J,(2.1±1.2)J; the voiding power were (15.3±7.3)mW,(31.9±12.6)mW,(42.5±21.1)mW; and the voiding energy consumption were (3.9± 1.2) J/L,(5.2± 1.9) J/L,(6.2±3.2) J/L in those three groups,respectively.With the increasing of detrusor pressure,PdetQ Q PIP,the voiding work,the voiding power and the voiding energy consumption all increased among three groups with significant difference (P＜ 0.05).There were 51 cases,81 cases in the normal and the increased urethral resistance group.The voiding work were (1.5±0.7)J and (1.5±0.8)J;the voiding power were (32.3±13.2)mW and (22.6±16.3)mW and the voiding energy consumption were (3.8±0.7) J/L and (5.4±2.4) J/L in two groups.The increased urethral resistance group had higher PdetQmax and voiding energy consumption (P＜0.05) and lower Qmax and voiding power (P＜0.05) than those in the normal urethral resistance group.However,the differences of PIP (P =0.438) and the voiding work (P =0.546) between the two groups were not determined.Conclusions The detrusor power curve method can be used to calculate the work parameters of voiding.This method can be applied to evaluate the compensatory state of bladder and is conductive to urodynamic analysis in low detrusor pressure status.Both detrusor pressure and urethral resistance had significant impact on the work capacity of bladder.

Métodos para determinar el poder de la lente intraocular después de cirugía refractiva corneal / Methods for the calculation of the intraocular lens power after corneal refractive surgery

El implante de la lente intraocular supuso un gran avance en la cirugía de la catarata puesto que permite optimizar los resultados refractivos del paciente. Durante los últimos años ha mejorado de manera impresionante el cálculo del poder de la lente intraocular. Sin embargo, lograr la emetropía en algunas situaciones se ha convertido en un verdadero reto para los cirujanos, debido a que cada día es mayor el número de pacientes con catarata que acuden a consulta sometidos previamente a cirugía refractiva corneal. El cálculo del poder de la lente intraocular en ojos que han experimentado cirugía refractiva corneal será un asunto discutido de forma permanente hasta que se pueda confiar en un método que mida directamente el poder corneal después de una queratotomía radial o de procedimientos fotoablativos. Como alternativa en estos pacientes diferentes autores han incorporado múltiples algoritmos para evitar la sorpresa refractiva. Se realizó una revisión bibliográfica con el objetivo de describir los principales métodos para calcular el poder de la lente intraocular poscirugía refractiva corneal dependiendo de los datos disponibles

The intraocular lens implant marked a great breakthrough in the cataract surgery, allowing the optimization of the refractive results of the patients. Intraocular lens power calculation has greatly improved during recent years. However, achieving the emetropia in some situations has become a real challenge for surgeons, because the number of cataract patients, who go every day to the ophthalmological service with previous cornel refractive surgery, is increasing. The calculation of the intraocular lens power for those eyes that have experienced corneal refractive surgery will be a matter under permanent discussion until we can rely on a method capable of directly measuring the corneal power following radial keratotomy or photoablative procedures. As an alternative for treating these patients, several authors have added multiple algorithms to avoid the refractive surprise. A literature review was made with the aim of describing the main methods to calculate the intraocular lens power post corneal refractive surgery depending on the available data

Research on the influence and countermeasures of power supply quality's to the safe operation of medical equipment / 中国医学装备

Objective: Through the large hospital medical equipment power supply quality of substantive, this paper aims to be the more advanced medical equipment to provide a stable security environment of power. Methods: Medical equipments for power supply system of common appeared, elaborated the medical equipment to deal with power supply quality abnormal solution countermeasures. Results: Good power supply management effectively ensure the effective performance of medical equipment. Conclusion: To provide high quality power can guarantee the medical equipment and long-term safety, reliable, stable and effective operation of the important condition.

Os dispositivos e o atual / Los dispositivos y lo actual / Devices and the present

Proponho diferenciar fidelidade ao contrato de fidelidade ao acontecimento, como também, poder substantivo e relações de poder, que definem os sujeitos "em situação". Pergunto-me se o corpo teórico psicanalítico produziu acontecimentos, ou se se tratou principalmente de reacomodações e progressivas complexidades mantidas dentro de um grande enquadre comum. Proponho, portanto, que tomar em conta o outro enquanto outro, os limites dos processos identificatórios, e a subjetividade social no presente deveria levar-nos a trabalhar com dois modelos diferentes em permanente conflito: o da subjetividade identitária e o dos sujeitos múltiplos. São apresentadas algumas vinhetas clínicas

Propongo diferenciar fidelidad al contrato y fidelidad al acontecimiento. Poder sustantivo y relaciones de poder que definen a los sujetos en situación. Me pregunto si se han producido acontecimientos en el cuerpo teórico psicoanalítico o si se ha tratado de re-acomodamientos y mayores complejidades dentro de un gran marco común. Propongo entonces que el tomar en cuenta el otro en tanto otro, los límites de los procesos identificatorios, la subjetividad social en el presente debiera llevarnos a trabajar con dos modelos diferentes y en permanente conflicto. El de la subjetividad identitaria y el de los sujetos múltiples. Se proponen algunas viñetas clínicas

The author suggests that we should distinguish between loyalty to the contract and loyalty to the event, and between substantive power and power relations whereby subjects are defined in situations. She wonders if the corpus of psychoanalytic theory has experienced events, or rather rearrangements and progressive complexity within a shared framework. She therefore proposes taking into account the other as other, the boundaries of identificatory processes, and social subjectivity in the present. Such an approach would lead us to work with two different and conflicting models - that of a subjectivity constituted through identification, and that of a multiple subject. Some clinical vignettes are provided that illustrate these ideas