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Posts Tagged "surgery"

Brainwaves

Why Feeling Anxious about a Vaccine Makes It More Effective (and Other Benefits of Short-Term Stress)

SAN FRANCISCO—Standing at a podium in front of an audience of psychiatrists, clinicians and scientists, Firdaus Dhabhar brings up a video of his infant son on a large projector screen and presses play. Smiling and wriggling, Dhabhar’s son rests on his back in a doctor’s office—perfectly content. “Watch for the immediate reaction,” Dhabhar tells the [...]

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Observations

Silk-Based Electronics Dissolve on Cue for Vanishing Medical Implants

dissolving circuit medical implant electronics

Imagine an electronic medical implant that, like dissolvable stitches, could disintegrate after it is no longer needed. An innovative combination of silk and silicon have now been used to create just such ephemeral but effective devices, including diodes, transistors, mini heaters and stress sensors. A flexible device that is just nanometers thick can fight post-surgical [...]

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Observations

Surgery for Extreme Obesity Produces Long-Term, Dramatic Weight Loss and Diabetes Remission

gastric bypass surgery for obese weight loss lowers diabetes

NEW YORK CITY—More than 30 million of the Americans classified as obese or extremely obese might benefit from surgery that reconstructs the stomach to accommodate less food. A new study shows that gastric bypass surgery, which leads to weight loss and improvement of related health problems, may yield long-term health benefits. Earlier research had shown [...]

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Observations

Cut the Appendix Surgery–Antibiotics are Effective for Uncomplicated Appendicitis

appendicitis

For something thought to be largely extraneous, the appendix can be a real pain. Hundreds of thousands of people in the U.S. have appendectomies each year, often for an appendix that is swollen rather than ruptured. But a new study suggests that many of those surgeries might often be as unnecessary as the organ they’re [...]

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Observations

Gamma-Knife Surgery Halts Growth of World’s Tallest Living Human

gamma knife

Years of surgeries and medications were unable to stop Sultan Kosen’s runaway growth. In 2010 at age 27 and a height of 2.46 meters (eight feet, one inch), he became the world’s tallest living man, according to Guinness World Records. But he wasn’t done growing. Kosen had been diagnosed with a growth disorder at age [...]

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Observations

Knee Replacements on Shaky Scientific Ground

knee replacements

As the U.S. population ages and continues packing on the pounds, knee replacement surgeries are becoming increasingly common. More than 650,000 total knee replacements were performed in 2008 (according to the latest data available). And as materials and surgical technologies improve, the promise of newer and better implants is making the procedure even more appealing [...]

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Observations

Expertise and supplies make many surgeries very safe in the developing world

doctors perform surgery in africa

A new analysis of surgeries completed in developing countries revealed a surgical mortality rate of just 0.2 percent, suggesting that when well-trained and outfitted staff are available, surgery can be quite safe in areas of violent conflict, such as Southern Sudan. The study, published online August 16 in Archives of Surgery, assessed 19,643 surgical procedures [...]

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Observations

Elective cesarean sections are too risky, WHO study says

cesarean section surgery risk mother baby

Despite medical advances and increasing access to improved obstetric care across the globe, surgical childbirths are still more risky for both mother and baby, according to an ongoing international survey by the World Health Organization (WHO). A new report from the survey, which was published online today in the medical journal The Lancet, found that [...]

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Octopus Chronicles

Meet Your Dr. Octopus: Surgical Octo Arms

octopus

Robotic surgery has proved itself to be less than perfect so far. Stiff robotic limbs, burning surfaces, numerous complications. But what if that surgeon’s assistant was less like a standard robot—and more like an octopus? A team of researchers is hoping to use inspiration from the octopus’s flexibility and chemical complexity to develop a new [...]

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