jueves, 30 de septiembre de 2010

Muchos cirujanos Suffer lesiones de técnicas mínimamente invasivas, estudio busca

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Main Category: Primary Care / General Practice
Also Included In: Body Aches
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Surgeons who engage in minimally invasive, laparoscopic surgery are providing great benefits to their patients, but possibly to their own detriment. That's the finding of the largest survey ever conducted of surgeons in North America who perform laparoscopic procedures. The survey, developed at the University of Maryland School of Medicine in Baltimore, found that 87 percent of laparoscopic surgeons have experienced physical symptoms or discomfort. This was especially true among those with high case volumes. Previous surveys had found only a 20-30 percent incidence of occupational injury among these surgeons. Results of the survey will appear in the March 2010 Journal of the American College of Surgeons and are now available online.

Millions of patients around the world have benefited from minimally invasive surgical techniques introduced some 20 years ago. The benefits include increased safety, quicker recovery, shorter hospital stays and cosmetic advantages compared to open surgery techniques.

Despite these successes, the impact of minimally invasive techniques on those who perform them is little-known and under-appreciated. "We face a pending epidemic of occupational injuries to surgeons and we can no longer ignore their safety and health," says the survey's principal author, Adrian E. Park, M.D., chief of general surgery at the University of Maryland Medical Center and professor of surgery and vice chair of the Department of Surgery at the University of Maryland School of Medicine.

"Sadly, it is easier for a surgeon to obtain an ergonomic assessment and direction to improve his golf swing than his posture or movement during surgery," says Dr. Park, who is also executive director of the Maryland Advanced Simulation, Training, Research, and Innovation (MASTRI) Center at the University of Maryland Medical Center. It is the first facility in the world to focus on surgical movement. "If injuries among surgeons are not addressed significantly, we're going to face a problem in the near future of a shortage of surgeons as well as shortened career longevity among surgeons who enter, or are already in, the field."

Dr. Park says surgeons who perform laparoscopic surgery face constraints that are not part of open surgery. "In laparoscopic surgery, we are very limited in our degrees of movement, but in open surgery we have a big incision, we put our hands in, we're directly connected with the target anatomy. With laparoscopic surgery, we operate by looking at a video screen, often keeping our neck and posture in an awkward position for hours," says Dr. Park. "Also, we're standing for extended periods of time with our shoulders up and our arms out, holding and maneuvering long instruments through tiny, fixed ports."

Study design

A comprehensive 23-question survey was sent to 2,000 board-certified gastrointestinal and endoscopic surgeons in North America and abroad who are members of the Society of American Gastrointestinal and Endoscopic Surgeons, a diverse group of experienced laparoscopic practitioners. The questions were grouped in four categories: demographics, physical symptoms, ergonomics and environment or equipment. Some questions required single answers, such as "Have you ever had any physical discomfort or symptoms you would attribute to your laparoscopic operating? Yes/No." Other questions allowed selection of multiple applicable answers.

Study results

Of 317 surgeons completing the survey, 272 (86.9 percent) reported experiencing physical discomfort or symptoms they attributed to performing minimally invasive surgery. The discomfort ranged from eye strain to problems in the surgeon's dominant hand, to neck, back and leg pain. A few surgeons also reported headaches, finger calluses, disc problems, shoulder muscle spasm and carpel tunnel syndrome. Age played a role in hand problems, with younger surgeons and those over 60 at highest risk, but there was no correlation between age and symptoms in other parts of the body.

Annual case volume emerged as a key predictor of physical symptoms. Case volume impact was seen in surgeons who had received postgraduate surgical fellowship training. Those surgeons averaged 249 cases a year, while the non-fellowship average was 192. Neck, hand and leg symptoms rose with increased case volume. "If surgeons had more than 150-200 cases a year, they were at a much higher risk," says Dr. Park. "However, if the surgeon did long, complex cases, they only needed half that number to increase the risk."

To minimize the problems, 84 percent said they had changed their position, while 30 percent said they changed instruments or took a break. Significantly, 40 percent of all participants said they would just ignore any such problem.

Instrument design was listed as the main source of symptoms for more than 74 percent of the surgeons, while 40 percent cited operating room table setup and display monitor location. More than half of the surgeons (58.7 percent) said they were only slightly aware or not aware at all of recommendations to reduce symptoms from researchers in the field of surgical ergonomics.

Dr. Park says the survey results provide important pieces to the puzzle, but ergonomic researchers do not know what all the issues are. As a first step toward developing solutions, he calls for a fresh, comprehensive attempt to understand the surgical workplace. "Many manufacturers and industries have been able to optimize workflow, worker safety and efficiency by characterizing their workspace, while we in surgery have done nothing. We have not seriously investigated or addressed the surgeon-patient interface and the surgeon-instrumentation interface. If you go into the cockpit of an airplane, everything is integrated. In the operating room there is very limited integration of technologies," says Dr. Park.

"The patient has always been the main focus of medicine, as caregivers and researchers grapple with disease treatment and prevention, enhanced patient safety and comfort and the extension of care to more people," says E. Albert Reece, M.D., Ph.D., M.B.A., vice president for medical affairs at the University of Maryland and dean of the University of Maryland School of Medicine. "At a time when minimally invasive, laparoscopic techniques are expanding, Dr. Park's research raises new questions that may affect patient care in the future. It is my hope that further research will provide answers, and will help stem what may indeed be an impending epidemic among surgeons."

Park AE, Lee G, Seagull FJ, Meeneghan N, Dexter D. "Patients Benefit While Surgeons Suffer: An Impending Epidemic." Journal of the American College of Surgeons 2009.10.017. Published online ahead of print, December 24, 2009.

Source:
Bill Seiler
University of Maryland Medical Center

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AGS Fundación para la salud en el envejecimiento Tip Sheet acerca de dolor persistente en la vida posterior, ya está disponible en español


Categoría principal: Las personas de edad y adultos mayores
También incluidos en: Consejo de dolores; dolor / anestésicos
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La Fundación de AGS para la salud de adultos mayores (FHA) Tip hoja sobre el dolor persistente--dolor o molestia que dura por un largo tiempo, o viene y va a lo largo de meses o años--ahora está disponible en la traducción al español. Las puntas de dolor, publicadas inicialmente en mayo en inglés, son los primeros en una serie de consejos de la lengua española, vuelva a estar disponible por la FHA. Las puntas ofrecen a los hispanohablantes adultos mayores que sufren de dolor continuo y sus cuidadores, asesoramiento sobre cómo obtener el tratamiento y el alivio. Dolor persistente es común entre las personas de edad, particularmente aquellos con problemas de salud crónicos como la artritis. Sin embargo común, persistente dolor no es una parte "normal" del envejecimiento y no debe ser ignorado.Si no tratada o tratada incorrectamente, dolor persistente puede hacer difícil dormir, caminar y realizar las actividades diarias.Puede contribuir a caídas y provocar discapacidad. Puede tomar la alegría de la vida.

Afortunadamente, existen muchos tratamientos eficaces para el dolor persistente y nueva versión en español de FHA de la fácil lectura "hoja de sugerencias" explica en detalle.

Escrito por expertos con la sociedad americana de Geriatría, que la hoja de sugerencias de Spanish-language explica cómo mayores y sus cuidadores, puede describir dolor y sus experiencias con el dolor de sus proveedores de atención médica pueden comprender mejor y tratarlo.Entre otras cosas, describe signos de dolor en adultos mayores con demencia, quien puede ser incapaz de comunicarse.

La hoja de punta proporciona una visión general de las diferentes clases de medicamentos para el dolor--incluyendo acetaminofén (Tylenol ® por ejemplo), medicamentos antinflamatorios (AINES), como aspirina, ibuprofeno y el naproxeno y analgésicos opiáceos tales como Vicodina, Sobredosisde, Ultracet, Lortab y morfina. Explica los tipos de dolor estos medicamentos tratan con más éxito, y los riesgos asociados a su uso. Y ofrece asesoramiento sobre cómo trabajar con su o su querido de proveedores de atención médica para encontrar el medicamento adecuado.Además, la hoja de punta incluye información acerca de las opciones de alivio de dolor no drogas, tales como masajes, acupuntura y neuroestimulación eléctrica transcutánea (TENS), terapia física y ejercicio.

La hoja de punta, que asesora a los adultos mayores y sus cuidadores para alertar a sus proveedores de atención médica inmediatamente si el tratamiento no funciona o está causando efectos secundarios, se puede descargar, impreso y compartida sin costo alguno.

Acerca de la FHA

En 1999, la sociedad americana de Geriatría había alcanzado más allá de su función tradicional como una sociedad médica profesional y puso en marcha la Fundación AGS para la salud en Aging (FHA). La FHA tiene como objetivo construir un puente entre los profesionales de asistencia sanitaria de Geriatría y el público y abogar en nombre de los adultos mayores y sus necesidades especiales: atención de bienestar y preventiva, autorresponsabilidad y independencia y las conexiones a la familia y la comunidad. La FHA campeones iniciativas en educación pública, la investigación clínica y la política pública que promover los principios y la práctica de la medicina de Geriatría; educar a los responsables políticos y al público sobre las necesidades de atención médica y las preocupaciones de los adultos mayores; apoyar la investigación de envejecimiento que reduce la discapacidad y la fragilidad y mejora la calidad de vida y los resultados de salud; estimular a los adultos mayores para ser promotores eficaces para su propia atención de salud; y ayudar a miembros de la familia y los cuidadores toman mejores cuidado de sus seres queridos más antiguos y de ellos mismos.

Fuente
Sociedad Americana de Geriatría

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miércoles, 29 de septiembre de 2010

Novedoso tratamiento para el dolor en Sickle Cell Disease

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Main Category: Pain / Anesthetics
Also Included In: Blood / Hematology;  Alcohol / Addiction / Illegal Drugs;  Body Aches
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A University of Minnesota Medical School research team led by Kalpna Gupta, Ph.D., has discovered that cannibinoids offer a novel approach to ease the chronic and acute pain caused by sickle cell disease (SCD).

Using a mouse model of SCD, Gupta and University of Minnesota colleagues studied the pain mechanisms by observing animals that exhibited both musculoskeletal pain and temperature sensitivity, symptoms similarly experienced by humans with SCD. The team compared two classifications of drugs in their ability to manage pain sensed by the animals, the traditionally prescribed classification of drugs, opioids, with a new therapeutic approach, cannabinoids, a synthetic compound based on marijuana derivatives. Currently, the only approved treatment for management of severe pain in SCD is opioids.

Using confocal miscroscopy, a precise type of laser scanning that allowed the researchers to observe the nerve pathways of the animals, Gupta and her colleagues were able to study structural changes in the neural pathways that are activated when the animal is sensing pain. When comparing the effects that each classification of drug had on the animal's level of pain, Gupta discovered that both opioids and cannibinoids equally lessened the amount of pain the animals sensed. However, researchers were able to use much smaller doses of cannibinoids to achieve the same level of pain relief. Moreover, because researchers injected the cannibinoids directly into the body in such low doses, unwanted side effects that result from higher doses of the drug reacting in the brain were minimized.

"This paper provides proof that we can use other classifications of drugs to treat pain in patients with sickle cell disease," Gupta said. "Cannibinoids offer great promise in the treatment of chronic and acute pain, and they're effective in much lower amounts than opioids - the only currently approved treatment for this disease."

Sickle cell disease is a genetic blood disorder that affects the red blood cells in the body making them become sickle-, or crescent-shaped. The crescent shape of the cells makes it difficult for them to pass through the small blood vessels in the body, forming blocks that lessen the flow of blood. The decreased blood flow often causes a variety of other serious health complications, including stroke and damage to vital organs including the lungs, spleen, kidneys, and liver.

The disease causes a constant level of chronic pain in patients, including cold and hot temperature sensitivity, and additional episodes of sharp, severe pain known as crises. Pain in SCD is described to be more intense than labor pain. The pain starts early in a patient's life, often during infancy, and increases in severity with age. There is no known cure, and the best treatment option for most patients with SCD is pain management. To date, the only approved classification of drugs for pain management and treatment of SCD is opioids (narcotics), the category of drugs that includes morphine. Opioids have long been used to manage the pain of patients with a variety of diseases, and the ill effects of the drugs are well known.

Particularly of concern for SCD patients is that opioids often negatively affect a patient's blood vessels and kidneys, two plaguing elements of the disease itself. In addition, patients with this disease need to take very high doses of opioids to sense any pain relief. Gupta and her team discovered that this is because the receptors required for the binding and action of morphine to provide pain relief are decreased in animals with SCD.

Notes:
Gupta collaborated with Donald Simone, Ph.D., Robert Hebbel, M.D., and Marna Ericson, Ph.D., leaders in cannabinoid research on pain, sickle cell disease, and nerve imaging, respectively. The paper, "Pain related behaviors and neurochemical alterations in mice expressing sickle hemoglobin: modulation by cannabinoids," was featured on the cover of the July 22, 2010 issue of Blood.

This work was supported by National Institutes of Health and by the Veterans Health Administration.

Source:
Laura Stroup
University of Minnesota

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posted by Dr Dave McCarthy on 24 Jul 2010 at 10:17 am

Sicklers have low 25-OH vitamin D levels.
African Americans (AA's) are low generally and sicklers have been shown to be even lower than non sickler- AA's.
As this study was in Minnesota and vitamin D levels are strongly influenced by the latitude of the person, it is very likely vitamin D deficiency is playing a role in sickling in Minnesotan sicklers.

I target attaining the upper quartile of reference for 25-OH vitamin D ( 80 +/- 10 ng/ml - ref is up to 100 ng/ml) This markedly reduces cytokines, shown to be a mediator in the inflammatory response in sicklers.

Also I add twice daily magnesium supplements as the final straw that triggers the sickling is the depletion of RBC magnesium stores.

Avoiding the use of cannabinoids in sicklers allows them to be eligible for a more full range of occupations.

With this combination of excellent D levels and daily magnesium supplementation - I have not seen a problem with sickling even in a patient with previous multiple bouts per month for years.

I hope this helps.

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martes, 28 de septiembre de 2010

Supervisados terapia de ejercicio para el dolor de rodilla is better than usual de atención


rate icon Elección del editor
Categoría principal: Bones / ortopedia
También incluidos en: Consejo de dolores
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4 and a half stars3 and a half stars
Un estudio publicado hoy en los informes de bmj.com que supervisión el tratamiento con ejercicios es más efectivo para reducir el dolor y mejorar la función que la atención habitual para los pacientes con dolor de rodilla grave.

Dolor de rodilla es una razón común para visitar al médico.Síndrome de dolor patelofemoral es una condición en que el dolor se produce en la parte frontal de la rodilla durante o después del ejercicio. Los síntomas suelen comienzan durante la adolescencia cuando la participación en las actividades deportivas es alta.Además, las mujeres son más probabilidades de ser afectadas que los hombres.

Asesoramiento médico general es para descansar durante los períodos de dolor y evitar el dolor, provocando las actividades. Este "esperar y ver" enfoque es considerada como la atención estándar.

Las conclusiones de un estudio reciente sugieren que hay pruebas limitadas sobre la eficacia del tratamiento con ejercicios con respecto a la reducción del dolor. Hay hechos inconsistentes con respecto a la mejoría funcional.

A fin de averiguar más, los investigadores basados en los Países Bajos investigan la eficacia del tratamiento con ejercicios supervisados.En comparación con la atención habitual en 131 pacientes en edades comprendidas entre los 14 y 40 años con síndrome de dolor patelofemoral.

Del total de 131 participantes incluidos en el estudio, 65 fueron asignados a un programa de ejercicios supervisados (grupo de intervención) y 66 a atención habitual (grupo de control). Ambos grupos recibieron similar información escrita sobre el síndrome y instrucciones similares para la casa de ejercicios.Todos los participantes recibieron instrucciones de que se abstengan de actividades dolorosas.

Al comienzo del estudio, los pacientes calificaron su recuperación, dolor en reposo, sobre la actividad y puntuaciones de función.Lo hicieron tan nuevo después de tres y doce meses.

Después de tres meses, el grupo de intervención informó considerablemente menos dolor y mejor la función que el grupo de control.En doce meses, el grupo de intervención continuó mostrando resultados superiores que el grupo de control con respecto al dolor en reposo y dolor en actividad, pero no de función.

Una mayor proporción de pacientes en el grupo de ejercicio que en el grupo de control informó de recuperación (42% en comparación con el 35 por ciento en tres meses y el 62 por ciento en comparación con el 51% en doce meses).Sin embargo, estos resultados no fueron considerablemente diferentes entre los dos grupos.

Los autores dicen que las conclusiones de esta indicación de dar de estudio que supervisó el tratamiento con ejercicios para el síndrome de dolor patelo-femoral en la práctica general es más eficaz que la atención habitual para el dolor en reposo, dolor en actividad y la función a los tres y doce meses.Por otra parte, tratamiento con ejercicios supervisados no tuvo efectos sobre la percepción de recuperación.

Dicen en cerrar aún más la investigación es necesaria a fin de comprender cómo el tratamiento con ejercicios resulta en mejores resultados.

"Supervisó el tratamiento con ejercicios versus atención habitual para el síndrome de dolor patelofemoral: ensayo controlado aleatorio de una etiqueta abierta"
Profesor de investigación de asociado de R van Linschoten, médico de deportes, M van Middelkoop, investigador, M Y Berger, investigador, médico general, E M Heintjes, investigación, J A N Verhaar, profesor de ortopedia, S P Willemsen, estadístico, Koes B W, profesor de investigación, S M Bierma-Zeinstra,
BMJ 2009; 339:b4074
doi:10.1136/BMJ.b4074
BMJ.com

Escrito por Stephanie Brunner (B.A.)
Derechos de autor: Medical News Today
No para ser reproducido sin permiso del Medical News Today

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Todas las opiniones son moderadas antes de que se agreguen.

Tenga en cuenta que publicamos su nombre, pero nosotros no publicar su dirección de correo electrónico.Sólo se utiliza para hacerle saber cuando se publique su mensaje.No utilizarla para cualquier otro propósito.Por favor, consulte nuestra política de privacidad para obtener más información.

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