Articles tagged with Anesthesia
A recent UK survey found a significantly lower incidence of accidental awareness during general anaesthesia, with one episode known to anaesthetists in every 15,000 procedures. The study suggests that the use of brain monitoring technology is also low, with only 2% of anaesthetists routinely using it.
Researchers identified specific EEG signatures that indicate loss and regain of consciousness under propofol anesthesia. The study provides precise markers for monitoring patient unconsciousness and predicting recovery, potentially revolutionizing general anesthesia care.
A new study tracked brain activity in human volunteers as they lost and regained consciousness, revealing distinctive patterns linked to different stages of general anesthesia. The findings could improve monitoring systems used during surgery, reducing the risk of rare cases where patients wake up during operations.
Animal studies suggest that type of anesthetic used, number of exposures and age contribute to risk of inflammation, cognitive deficits. Research findings indicate potential safer alternatives for young children.
Researchers discovered purines, specifically adenosine, can generate outside cells to protect organs from anesthesia-induced damage. Activating adenosine receptors in critical organs like lungs and heart also provides protection.
Using regional anesthesia reduces need for blood transfusions and major complications in bilateral knee replacements, according to a new study. Patients receiving neuraxial anesthesia had lower rates of blood transfusions compared to general anesthesia.
Researchers found that anesthesia drugs like isoflurane boost activity in a part of the brain that increases during natural sleep, forcing important sleep circuits to fire. This finding could lead to a deeper understanding of how anesthetics work and potentially improve treatment options for patients.
Researchers at the University of Pennsylvania School of Medicine have found that surgery itself has a profound impact on brain pathology and cognition in mice with human Alzheimer disease genes. Surgery causes a lasting increase in Alzheimer's pathology and significant cognitive impairment, primarily through inflammation.
Advances in laparoscopic surgery have improved the care of patients with gallbladder disease, offering a less invasive alternative to open surgery. New tools and techniques have enhanced surgical outcomes, including reduced recovery times and fewer complications.
Researchers found that regional anesthesia was associated with a significant reduction in major pulmonary complications and death among hip fracture patients. The use of regional anesthesia versus general anesthesia resulted in a 29% lower adjusted odds of mortality and a 24% decrease in the adjusted odds of any inpatient pulmonary com...
A study of half a million patients found that 3% require critical care services after hip and knee replacements. Hospitals should prepare for the growing number of orthopedic patients needing critical care, with risk factors including age, comorbidities, and anesthesia type.
Exercise significantly reduces neuropathic pain severity and inflammation-promoting cytokine expression in rats with sciatic nerve injury. This study provides evidence that exercise can be a helpful, non-pharmacological therapy for managing neuropathic pain.
A new approach to preventing 'high spinal block' may be provided by a simple technique using local anesthetic mixed with magnetized ferrofluids, which can control the spread of spinal anesthesia. Researchers believe this technique could offer a second means of controlling block spread and provide a safeguard against serious complications.
Researchers at Massachusetts General Hospital found that methylphenidate can reverse general anesthesia with propofol, showing its potential to wake patients up faster. This breakthrough could make general anesthesia safer and more efficient, especially in operating rooms where propofol is commonly used.
A study published in The Journal of Neuroscience found that primitive brain structures activate before neocortex when individuals regain consciousness after general anesthesia. This discovery provides new insights into the emergence of consciousness and its relationship with brain function.
Researchers at Wake Forest Baptist Medical Center explored strategies to protect young children's brains from anesthesia damage. Three tested treatments - NAP, vitamin D3, and low-level ketamine - showed promise in preventing brain injury.
The study found a substantial increase in the use of anesthesia services for gastrointestinal endoscopies, with most procedures performed on low-risk patients. Regional variation in anesthesia use was also observed, with higher rates in the Northeast region.
A study by RAND Corporation found that the use of anesthesia providers during GI procedures is increasing rapidly, with substantial regional variation. The study suggests that up to $1.1 billion in annual health spending may be unneeded, as most low-risk patients do not require this service.
Researchers at MGH found that isoflurane impairs learning and memory in mice by damaging mitochondria, while desflurane has no similar effects. The study suggests desflurane may be a better anesthetic for patients with Alzheimer's disease.
A mathematical model predicts and explains the emergence of burst suppression, a low-activity state in response to reduced cellular energy. The study suggests that burst suppression may be used to guide induced coma and track recovery from brain injuries, offering new insights into brain neurochemistry and neurophysiology.
Researchers at Thomas Jefferson University found that intraarticular delivery of local analgesic bupivacaine reduces postoperative pain and narcotic consumption, while minimizing complications. The study suggests a potential new option for better pain management following knee replacement surgery.
A recent study conducted by Mayo Clinic researchers has found that young children who are exposed to anesthesia multiple times before the age of three have a higher risk of developing attention-deficit/hyperactivity disorder (ADHD). The study, which utilized data from the Rochester Epidemiology Project, found that children with two or ...
A landmark survey of 1,006 mothers found that only 24% discussed their decision to stop childbearing with their OB/GYNs. Women were largely unaware of non-surgical permanent birth control methods like the Essure procedure, which has a 99.8% effectiveness rate.
A new study has identified that using less invasive spinal, epidural, and local/monitored anesthesia care is better than general anesthesia for elective endovascular repair of infrarenal abdominal aortic aneurysms. This results in reduced pulmonary complications and shorter hospital stays.
Researchers found that children exposed to general anesthesia and surgery before their second birthday were approximately three times as likely to develop speech and language problems compared to those who never underwent procedures. The study, published in Pediatrics, suggests that anesthesia exposure may affect brain development and ...
Researchers at Massachusetts General Hospital discovered that administering methylphenidate, a commonly used stimulant drug, can significantly speed up recovery from general anesthesia in rats. This breakthrough could potentially reduce post-anesthesia complications and improve patient outcomes.
Researchers tested a device to prevent intraoperative awareness and found it was no more effective than a less expensive method. The study involved over 6,000 surgical patients and found that both methods were probably effective in decreasing the incidence of awareness.
A recent study found that the number of women dying from complications of anesthesia during childbirth has plummeted 59 percent, thanks to better monitoring and medical techniques. The risks associated with general anesthesia have been dramatically reduced, but regional anesthetic-related deaths have slightly increased.
A review of general anesthesia, sleep, and coma reveals that a fully anesthetized brain is closer to the state of a coma patient than a person asleep. The study aims to improve diagnosis and treatment for sleep abnormalities and emergence from coma.
A review article brings together neuroscience and sleep medicine to understand the biological mechanisms underlying general anesthesia. The authors highlight differences between general anesthesia and states similar to sleep and coma, while also exploring how anesthetic agents interact with brain circuits.
Temporary combativeness in anesthetized children may be prevented by reducing epinephrine production with specific drugs, according to a medical expert. This can improve post-surgery experience for both children and their families.
A new study published in PLoS One reveals that the brain shifts between sleep/awake states under anesthesia through different processes. The researchers identified a fundamental state called neural inertia, which explains the brain's resistance to changes in consciousness. This finding may lead to the development of novel anesthetic dr...
A new study published in Gastroenterology highlights the risk of hepatitis B and C virus transmission through contaminated anesthesia. Reuse of syringes and medication vials without proper sterilization can lead to viral transmission, emphasizing the need for strict adherence to sterile techniques in healthcare settings.
A new study suggests that awake sedation for brain surgery can shorten hospital stays by 3.5 days compared to general anesthesia. The study also found a 36% decrease in post-intensive-care direct cost for cases receiving conscious sedation.
Researchers at Children's National Hospital found that carbon monoxide levels increase during routine general anesthesia in young children. To reduce this risk, anesthesiologists recommend using specific absorbents and avoiding low-flow anesthesia to minimize exposure.
A study found that not sedating critically ill patients in intensive care significantly reduced the number of days on mechanical ventilation (55 days vs 9.6 days) and length of stay in the ICU (13.1 days vs 22.8 days). However, no sedation was also associated with increased risk of delirium.
Scientists at the University of Wisconsin-Madison reported finding brain response patterns similar to those during natural deep sleep under anesthesia. The study suggests that loss of consciousness may be linked to a breakdown in cortical connectivity, lending support to the integrated information theory of consciousness.
A new study by Johns Hopkins researchers suggests that limiting the depth of sedation during procedures could safely cut the risk of postoperative delirium by 50 percent. Lighter sedation was associated with a one-day reduction in the duration of delirium in those patients who still emerged from surgery confused and disoriented.
A comprehensive program at Johns Hopkins has reduced the need for emergency airway surgery by 67% by providing a standardized cart with essential supplies and training staff on its use. The program's success story highlights the importance of organization and teamwork in improving patient outcomes.
A new injection technique combines lidocaine with facial fillers to minimize pain and reduce recovery time. The procedure provides an immediate numbing effect, allowing plastic surgeons to begin injections without waiting for traditional anesthesia to take effect.
UF scientists have re-examined the technique using MRI imaging and found that it works by compressing a different structure in the neck. The esophagus is not involved in the procedure, contrary to previous assumptions. This new understanding will help anesthesiologists use the maneuver more effectively.
Researchers at Medical College of Wisconsin identify genetic region on chromosome 13 responsible for cardiovascular collapse during anesthesia, similar to Michael Jackson's death. The study uses a rat model to understand the mechanism and potential gene involved, which could lead to preventing deaths and accidents in humans.
Researchers found corticosteroid injections effective in treating vocal fold polyps, with 91% response rate after one month. The procedure avoids surgical risks and scar formation, offering an alternative to traditional microlaryngoscopic surgery.
A study of over 2,000 identical twins found that early-life medical problems are associated with an individual's risk for developing learning disabilities, rather than anesthesia exposure. The research suggests that screening for learning problems should take place before surgery.
Researchers at Mayo Clinic found that children exposed to general anesthesia during C-section delivery have no higher risk of learning disabilities. Babies delivered via Cesarean with epidural anesthesia had a reduced risk of learning disabilities compared to those delivered vaginally or with general anesthesia.
A new general anesthetic called MOC-etomidate has been developed that maintains blood pressure stability while avoiding prolonged adrenal gland suppression. Animal studies verify its effectiveness in inducing anesthesia without adverse effects on blood pressure or adrenal activity.
The HJF has released the Military Advanced Regional Anesthesia and Analgesia Handbook, providing education on advanced battlefield regional anesthesia techniques and acute pain medicine. The handbook aims to manage the pain of combat trauma and is intended for use by deployed medical forces.
A study of 50,806 cesarean deliveries found regional anesthesia reduced infant intubation and poor Apgar scores. This suggests that regional anesthesia may be the preferred choice for most cesarean sections.
A study found that parents with low income, limited education, and single status experience higher levels of stress, which increases the likelihood of their children developing tooth decay. Conversely, receiving treatment for a child's dental decay can decrease parental stress levels.
Researchers at Mayo Clinic found that children who require multiple surgeries under anesthesia during their first three years of life are at higher risk of developing learning disabilities later. The study, which analyzed data from over 5,000 children, suggests a possible link between anesthetic exposure and brain development.
Researchers found anesthesia induces phosphorylation of tau at sites related to Alzheimer's disease, increasing the risk for cognitive impairment. The study suggests that this mechanism links anesthesia to the risk of dementia and Alzheimer's disease.
A NYU Langone Medical Center study shows that healthy elderly patients with severe to profound hearing loss can tolerate cochlear implant surgery without significant risk, contrary to conventional wisdom. The procedure significantly improves their hearing and quality of life.
New research from Washington University School of Medicine suggests that cooling the brain may prevent nerve cell death in infant mice exposed to anesthesia. The study found that hypothermia blocked neuroapoptosis and reduced low-level neuroapoptosis during brain development, potentially preventing cognitive and developmental delays.
Research shows that isoflurane, a commonly used anesthetic, can induce Alzheimer's-associated changes in mouse brains, including generation of toxic amyloid-beta protein and apoptosis. The study confirms previous laboratory findings and suggests potential risks for elderly and Alzheimer's patients.
Scientists have identified two separate neural pathways that regulate the transition in and out of anesthesia. The study found that mice with impaired orexin signaling took longer to emerge from general anesthesia, but not to fall asleep during the procedure. This breakthrough could lead to new approaches for administering anesthetics ...
A study found that administering a lidocaine lollipop reduced the need for sedation in the majority of patients undergoing upper endoscopy, improving patient comfort and reducing potential side effects. The lollipop proved safe and well-tolerated, making it a promising alternative to conventional lidocaine sprays.
A Mayo Clinic review of patients' responses to droperidol found no proven cases of complications directly attributable to the drug's use. The study suggests that alternative medications may not be as effective in controlling nausea and vomiting, leading some anesthesiologists to resume low-dose use of droperidol.
Mayo Clinic physicians have developed a new technique using real-time 3-D ultrasound to block nerve function in selected areas of the body prior to surgery. This allows patients to recover faster and with less need for pain medication. The technique has been successfully used in over 150 surgeries, showing improved outcomes for patients.
A University of Pittsburgh study found that effective postoperative pain control using continuous peripheral nerve block reduced average hospital stay length by nearly a day. The study analyzed data from over 1,500 patients and showed a significant economic benefit in reducing hospital-acquired infections and complications.
A new study published in Nursing Research found that obstetrical anesthesia is extremely safe, with no difference in safety between hospitals staffed by Certified Registered Nurse Anesthetists (CRNAs) or anesthesiologists. The study analyzed data from over 134,000 patients and found similar complication rates for both groups.