Study shows success and less risk in treating kids with heart rhythm problems
...ent transmitted at very high frequencies through a tiny thin probe called a catheter that is steered through the blood vessels and into the heart. The electricity is passed through the tip of the catheter, cauterizing a small piece of muscle on the inside of a child's heart. Prior to delivering the electr...Jefferson researchers find nanoparticle shows promise in reducing radiation side effects
...60_DF1. To test how well it worked, they turned to tiny zebrafish embryos, which are transparent and allow scientists to closely observe damage produced by cancer treatments to organs. Zebrafish usually have most of their organs formed by day three of life. They gave the embryos different doses of ionizin...'Sharp' older brains are not the same as younger brains
...ommunications at their synapses. (Synapses are the tiny gaps between nerve cells, where chemicals released by one cell act upon another.) Synaptic communication is the way brains register and preserve information to form memories. The team found that while the older rats with compromised cognition had b...Major advances in techniques, devices, medications spur update of PCI guidelines
...rtery by inflating a small balloon and inserting a tiny metal structure called a stent to act as permanent scaffolding. The goal: to restore blood flow to the heart muscle within 90 minutes of the patient's arrival at the hospital. That is just one of many recommendations in updated guidelines on percutan...Heart mapping technique safely guides catheter repair of arrhythmia
...es. The scientists safely ablated, or destroyed, tiny areas of diseased heart tissue that facilitate rhythm disturbances, guided only by these anatomically precise, reconstructed 3D map. During the procedure, a catheter containing a magnetic sensor in its tip is inserted through a vein in the dog's le...Duke engineers developing ultrasound devices combining 3-D imaging with therapeutic heating
...s other researchers have followed up by developing tiny internal ultrasound imaging probes than can provid...r internal surgery, Smith said. But those previous tiny probes acquire only two-dimensional images, which still have shortcomings for pinpoint tissue ablati...Mayo Clinic: Sinusitis is common yet often overlooked cause of chronic cough
...cluding rhinoscopy -- a nasal passage exam using a tiny flexible fiberoptic scope -- and/or a CT scan of the sinuses, according to Dr. Lim. "It is hard to make a diagnosis of sinusitis without looking into the nose or with a CT scan of the sinuses," says Dr. Lim. "Symptoms alone do not predict whether you......t suppressing hormones in prostate tumors destroys tiny blood vessels that carry oxygen to cells within the tumor. But oxygen also plays a critical role in biochemical pathways that help radiation kill cancer cells by immobilizing their DNA repair process. If true, these oxygen-depleted tumors would be ...Purdue's gold nanorods brighten future for medical imaging
...orks by shining a laser through the skin to detect tiny gold nanorods injected into the bloodstream. In t...the nanorods into mice and then took images of the tiny structures as the nanorods flowed through blood vessels in the animals' ears. Individual nanorods pr...Tiny worms paving way for better anesthetics
...ic agent have been identified by researchers using tiny worms and sophisticated technology that eliminates... nervous system of the C. elegans. They designed a tiny gas chamber to deliver Isofluran to the worms. Not unlike earlier days in anesthesiology before sop...Largest single-institution study demonstrates Mammosite is a safe breast cancer treatment
...ose of radiation. Once the catheter is inserted, a tiny balloon is inflated and loaded with radioactive seeds that deliver prescribed levels of radiation to targeted tissue surrounding the tumor site. "MammoSite is a type of partial breast irradiation that delivers radiation from the inside of the breast ...Eyes may provide window to future strokes
...sk factor for stroke.) The signs of damage include tiny bulges in the blood vessels, or microaneurysms, and hemorrhages, or tiny blood spots where the microaneurysms leak blood....Opening wide for new clues about lupus
By snipping out and analyzing tiny samples of patients' tonsils, scientists have identified a key cellular checkpoint that is somehow bypassed in lupus patients, where harmful immune cells that normally are squelched by the body are mistakenly granted access. The in-depth look at tiss...Penn surgeons use completely robotic surgery to treat prostate cancer
...and foot controls. One of the robotic arms holds a tiny video camera, one works as a retractor and the other two replicate the surgeon's exact hand movements. The camera and instruments are inserted through small keyhole incisions in the patient's abdomen. The surgeon then directs the robotic instruments ...Large sinus tumors can be removed endoscopically, study finds
... With the endoscopic approach, Dr. Kountakis uses tiny scopes and cameras to enter the natural opening of the nose where he obliterates the growth with a device that pulverizes and suctions. At points where it adheres to the sinus lining, he also removes the lining then uses a diamond drill to eliminate ...Adult stem cells aid recovery in animal model of cerebral palsy
...ctly into the brains of 22 animal models through a tiny hole in the skull. As with human transplant recipients, the animals were placed on immunosuppressive therapy to avoid rejection, although Athersys' experience in multiple animal models for human disease has shown donor-recipient matches and immunosu...New blood transplant method stops fatal side effect, Stanford study finds
...EN It makes sense that the regulatory T cells - a tiny subset of immune cells - could play such a vital role in stemming graft-versus-host disease: These cells appear to act as the immune system's peacekeepers, signaling to other immune cells to hold off from attacking an intruder. Thus, it seemed promis...ASU secures $3.9 million to study spinal cord injuries and neurological disorders
...ectromechanical system (MEMS) neural clamps. These tiny devices will utilize semiconductor microfabrication technology to integrate mechanical elements, sensors, and electronics to record neural signals from the nerve roots of the spinal cord. "The project requires expertise on several fronts, but what i...Magnetic insoles do not provide pain relief, Mayo Clinic study reports
...sic scientific research has focused on movement of tiny electrical voltages that may lead to decreased pain. The insoles studied were the Active Comfort magnetic insole (Spenco Medical Corp.), which has a magnetic foil pad located under the arch of the foot. These insoles were chosen because they are com...New non-surgical approach showing great promise in the treatment of challenging brain aneurysms
...idates for coil embolization, a procedure in which tiny coils are used to close off the aneurysm. To deliver the coils to the aneurysm, a catheter is inserted into the femoral artery, located in the upper leg, and threaded through the artery and into the blood vessels of the brain. Historically, if the a...