DR. DAVID A. THEODORO, M.D.

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This study looked at how quickly emergency doctors lose skills in using a special ultrasound technique called transesophageal echocardiography (rTEE) after their training. The researchers found that, six months after training, the doctors' skills dropped by 41%. However, with some additional practice a month later, their skills improved slightly, showing that regular refreshers can help maintain these important abilities. Who this helps: This benefits emergency physicians by ensuring they can quickly and effectively use rTEE during cardiac emergencies.

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This study looked at patients who experienced cardiac arrest and were thought to have a nonshockable heart rhythm. Researchers found that 3.2% of these patients actually had a condition called ventricular fibrillation, which could be seen on an ultrasound of the heart, even though their heart rhythm on an ECG (the standard heart test) was nonshockable. This finding is important because if doctors can identify this hidden type of ventricular fibrillation, they could provide life-saving defibrillation, potentially improving survival rates. Who this helps: This helps patients experiencing cardiac arrest.

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This study looked at patients in the emergency department suffering from septic shock to see if using point-of-care ultrasound (POCUS) changed the amount of fluids they received. Researchers found that although patients who received POCUS were generally sicker, both groups got about the same amount of fluids—33.02 ml/kg for POCUS patients and 32.1 ml/kg for those without POCUS. Importantly, there were no significant differences in new oxygen needs or death rates between the two groups, with 31% of POCUS patients and 27% of non-POCUS patients dying in the hospital. Who this helps: This research benefits doctors by providing insights into treatment practices for septic shock patients.

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This study looks at the safety of using ultrasound-guided regional anesthesia in emergency rooms to manage pain, while avoiding the use of opioids. Researchers want to find out how often patients experience negative side effects from this technique. This is important because understanding potential risks helps improve patient care and confidence in using this pain management method. Who this helps: This helps patients who need pain relief in emergency situations.

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This study looked at D-dimer levels, which are used to help diagnose blood clots in the lungs (pulmonary embolism) and legs (deep vein thrombosis), focusing on how these levels differ between men and women. Researchers analyzed data from 3,586 patients and found that men had higher D-dimer levels than women when diagnosed with pulmonary embolism, but lower levels when no clot was found. Additionally, they established different D-dimer cutoff values for men and women to improve diagnostic accuracy: 0.97 mg/L for women and 1.45 mg/L for men in cases of pulmonary embolism. Who this helps: This research benefits patients suspected of having blood clots by improving diagnostic testing accuracy.

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This study looked at how well the left ventricle of the heart functions during a type of cardiac arrest called pulseless electrical activity (PEA) and its impact on patient outcomes. Researchers found that patients with better left ventricular function had a 75% chance of regaining circulation compared to just 47% for those with poor function. Understanding this relationship helps emergency responders know which patients might have a better chance of survival during resuscitation efforts. Who this helps: This benefits patients experiencing cardiac arrest and doctors managing their care.

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This study looked at the differences between the electrical signals of the heart measured by an ECG and the heart's actual movement seen through an ultrasound (echocardiography) in patients who had cardiac arrest outside of the hospital. Researchers found that in over a quarter of the cases (28.6%), the ECG and echocardiography results did not match up, which raises questions about how effectively we can assess a patient's condition during CPR. Importantly, survival rates differed: 29.1% of patients with visible heart movement (pulseless myocardial activity) survived compared to 21.4% with no movement (pulseless electrical activity). Who this helps: This helps emergency responders and doctors make better decisions during cardiac arrest situations.

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This study looked at whether male and female emergency medicine residents were evaluated differently on their ultrasound skills during their training. Researchers analyzed over 2,500 assessments from 1,187 residents and found no significant differences in scores between genders, with a mean difference of only 0.01 points between male and female residents. This is important because it indicates that evaluations of procedural skills, which were previously thought to show bias, are more equitable than previously assumed. Who this helps: This helps medical training programs ensure fair evaluations for all residents, regardless of gender.

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This study looked at how effective a quick ultrasound test is for identifying the causes of shock in patients who come to the emergency room. Researchers found that this test is particularly good at identifying obstructive shock, with a high likelihood ratio of 40.54, meaning it's very likely to spot this problem when it exists. This is important because rapidly recognizing the type of shock can lead to better and faster treatment for patients in critical conditions. Who this helps: This helps emergency department doctors make quicker and more accurate diagnoses for patients experiencing shock.

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This study tested a new D-dimer test called the INNOVANCE assay, which helps doctors determine if emergency patients have conditions like pulmonary embolism (PE) or deep vein thrombosis (DVT). The researchers evaluated almost 3,900 patients and found that the test is very effective, with a 98% sensitivity for PE and 92% for DVT, meaning it correctly identifies these conditions most of the time. This is important because it can help doctors quickly rule out serious blood clots in patients, especially using an age-adjusted approach that improves accuracy. Who this helps: This helps patients who are suspected of having blood clots and need quick assessment in emergency settings.

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This study looked at how often urinary catheters are used in emergency rooms for men and women, finding that in 2013, men had a higher rate of catheter use at 6.5 per 1,000 visits compared to 2.7 for women. The researchers also found that men were more often treated for acute urinary retention, while women had a wider variety of reasons, including neurological and psychiatric issues. These findings matter because they suggest that some catheter uses in women might be unnecessary, highlighting a chance for improving care in emergency departments. Who this helps: This helps patients and healthcare providers improve treatment in emergency situations.

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This study looked at how the heart's activity during a type of cardiac arrest called pulseless electrical activity (PEA) affects survival rates after resuscitation. Researchers found that out of 225 patients, those who had organized heart activity on ultrasound had a much higher survival rate to hospital admission (37.7%) compared to those with disorganized activity (17.9%). Additionally, patients with organized activity who received certain intravenous medications had an even better survival rate of 45.5%. This matters because it shows that specific heart activity observed through ultrasound can help guide more effective resuscitation efforts, potentially saving lives. Who this helps: Patients experiencing cardiac arrest and the medical teams treating them.

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This study examined how using ultrasound during resuscitation efforts for heart attacks affects patient survival. In a large group of 793 patients, those who showed heart activity on the ultrasound were significantly more likely to survive: 14.4% made it to the hospital alive, and 1.6% were eventually discharged. This is important because it highlights the ultrasound's role in finding additional treatments that can improve survival rates during cardiac resuscitation. Who this helps: This helps patients experiencing cardiac arrest and the medical teams treating them.

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This study looked at how ultrasound (US) can be used in sports medicine, not just for injuries like sprains or fractures but also for other health issues in athletes, such as problems with the lungs, heart, or eyes. The researchers highlighted various ways US can help diagnose these conditions quickly on-site, which is crucial for athlete care. Expanding the use of US in sports medicine means that athletes can receive faster and more comprehensive evaluations. Who this helps: This benefits athletes, coaches, and sports doctors.

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This study looked at the rates of bloodstream infections caused by central lines placed in the emergency department (ED) over a 28-month period. Researchers found that out of 4,504 catheter days, there were nine infections, giving an infection rate of 2.0 per 1,000 catheter days. After implementing new infection prevention practices, the rate of infections dropped significantly from 3.0 to 0.5 per 1,000 catheter days, showing that these prevention efforts are effective. Who this helps: This benefits patients receiving care in the emergency department.

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This study looked at how often emergency medicine residents use ultrasound to guide the placement of central venous catheters, which are important for serious medical treatments. The researchers found that the use of ultrasound for this procedure jumped from 53% in 2007 to 96% in 2013, showing that more residents are being trained with this important tool. While some barriers, like faculty not using ultrasound as much, still exist, these have improved over time, which is significant because using ultrasound can lead to safer and more effective procedures. Who this helps: Patients receiving emergency medical care.

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This study looked at how quickly central venous catheters (a type of medical line) are placed in patients with serious conditions like sepsis and respiratory arrest when they arrive at the hospital emergency department. Researchers found that from 2003 to 2006, the number of these catheters being inserted right away (emergently) increased from 228 per 1,000 hospitalizations to 269 per 1,000, showing a trend toward faster intervention. This is important because quicker placement of these catheters can improve care for critically ill patients. Who this helps: This benefits patients with severe infections or breathing problems.

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This study focused on establishing standards for training emergency medicine residents in the use of ultrasound, a skill increasingly recognized as essential for patient care. The researchers created a list of core skills that emergency medicine graduates should master, providing a structured approach to teaching and evaluating these skills. This matters because consistent training ensures that future doctors can use ultrasound effectively, which can improve patient safety and healthcare delivery. Who this helps: This benefits medical residents, doctors, and ultimately patients who rely on quality emergency care.

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This study looked at a new treatment method using a device to stimulate the vagus nerve for patients experiencing severe asthma attacks who weren't improving with standard care after an hour. In a group of 25 patients, they found that this nerve stimulation led to significant improvements in lung function (with an average increase of 27.5% in breathing capacity after an hour) and breathing comfort (with an average improvement of 81% in how hard patients felt they were working to breathe). Importantly, the treatment was safe, with no serious side effects reported. Who this helps: This benefits asthma patients who struggle to respond to standard emergency treatments.

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This study looked at how available and effectively used emergency medicine ultrasonography (EMUS) is in rural hospitals in Ontario. Although almost all rural physicians had access to ultrasound equipment, only 60.6% could use it in emergency departments, and less than half were trained to perform the procedures themselves. This is important because effective use of ultrasound can help detect serious conditions early, ensuring that patients in rural areas receive timely care. Who this helps: This helps patients in rural communities who may need quick diagnoses in emergency situations.

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This study compared two methods of placing central venous catheters (CVCs) in patients: one using ultrasound to guide access through the internal jugular vein, and the other using traditional landmarks to access the subclavian vein. They found that the technique using ultrasound led to fewer complications, with 19% of ultrasound-guided attempts resulting in adverse events compared to 29% for the landmark approach. This matters because fewer complications mean safer procedures for patients receiving this type of care. Who this helps: Patients needing central venous access in emergency situations.

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This study examined the risks of problems during a specific procedure called ultrasound-guided central venous cannulation, which involves placing a catheter in the internal jugular vein, often done in emergency situations. Out of 289 attempts, about 20% resulted in complications, with the most common issue being unsuccessful placement of the catheter in 11% of cases. Notably, patients with end-stage kidney disease and procedures performed by doctors with intermediate experience were more likely to experience these issues. Who this helps: This research helps patients, especially those with certain health conditions, by identifying risk factors for complications during the procedure.

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The study looked at how emergency medicine residents are trained to use ultrasound technology in their practice. Experts gathered to create a standard curriculum, emphasizing that learning ultrasound is essential for all future emergency doctors. They argue that this training will directly improve patient care, especially for critically ill patients. Who this helps: This helps emergency medicine residents and their patients by ensuring they are well-trained in using ultrasound for diagnosis and treatment.

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This study looked at how well emergency doctors can see the entire abdominal aorta (AA) using ultrasound when patients haven't fasted. Out of 207 patients, 17% had some part of their AA not visible, and in 8% of the cases, more than a third of the AA was missed, which could hide an abdominal aortic aneurysm (AAA). The findings show that the emergency doctors might miss parts of the AA more often with non-fasted patients compared to other studies, which could impact patient safety. Who this helps: This helps emergency medicine doctors and their patients by highlighting the need for better ultrasound practices.

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This study looked at how emergency department doctors (EPs) used real-time ultrasound to quickly diagnose deep vein thrombosis (DVT) compared to using imaging specialists (IS). They found that EPs were able to make the diagnosis and decide what to do next in an average of 95 minutes, while relying on ISs took 220 minutes, saving 125 minutes. This is important because faster diagnosis allows patients to receive treatment sooner, improving their care. Who this helps: This helps patients with suspected DVT by speeding up their diagnosis and treatment.

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This study compared the image quality of a low-cost portable ultrasound machine (SonoSite 180 Plus) with a more expensive and larger ultrasound system (GE 400) used in emergency departments. They evaluated 49 images and found that the GE 400 outperformed the SonoSite in resolution and overall image quality, with scores of 6.8 for resolution and 6.6 for image quality compared to 6.3 and 6.0 for the SonoSite, making these differences statistically significant. This matters because better image quality can lead to more accurate diagnoses in emergency situations. Who this helps: Patients receiving emergency care.

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This study investigated whether using ultrasound to measure the optic nerve sheath diameter (ONSD) can quickly and accurately detect elevated intracranial pressure (EICP) in emergency department patients. The results showed that all 14 patients with CT scans indicating EICP had an ONSD measurement over 5 mm, with an average ONSD of 6.27 mm for those with EICP, compared to 4.42 mm for those without EICP. This method could help doctors identify EICP more efficiently, which is critical for preventing severe complications in patients with altered consciousness. Who this helps: This benefits patients presenting with altered levels of consciousness and the doctors evaluating them.

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This study looked at how accurately emergency medicine residents estimate the time they spend on ultrasound exams for patients. Researchers found that residents thought they spent about 8 minutes on average, but the actual time was closer to 10 minutes, meaning they underestimated their exam time nearly 70% of the time. Understanding this gap is important because it can help residents manage their time better while ensuring they still provide quality patient care. Who this helps: This helps doctors and medical residents improve their time management in emergency departments.

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This study looked at how emergency doctors can use ultrasound to help diagnose and treat patients with peritonsillar abscesses (PTAs), which are collections of pus near the tonsils that can be hard to identify. Out of 6 patients evaluated, 3 were found to have another condition called peritonsillar cellulitis instead of an abscess, while 3 had PTAs confirmed by ultrasound, with 2 needing the ultrasound to successfully drain the abscess after initial attempts failed. This is important because using ultrasound can improve the accuracy of diagnosis and make it easier for emergency doctors to perform drainage procedures safely. Who this helps: This helps patients with peritonsillar abscesses by ensuring they receive more accurate diagnoses and effective treatment.

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Researchers studied the effectiveness of small, portable ultrasound machines in detecting internal bleeding in emergency patients. They found that in three cases, these hand-held devices missed signs of bleeding that were clearly visible using larger ultrasound machines. This is important because it highlights that while portable ultrasounds are convenient, they may not always provide the best images, potentially leading to missed diagnoses in critical situations. Who this helps: This helps emergency room doctors and their patients by emphasizing the need for proper diagnostic tools.

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This study looked at patients who had blunt abdominal trauma but seemed stable based on their normal vital signs and physical exams. Researchers found that six of these patients actually had serious internal bleeding (hemoperitoneum) when they were checked with an ultrasound, even though they appeared fine. This is important because it shows that some patients may need further testing before being sent home to avoid serious complications. Who this helps: This helps doctors and emergency staff ensure they don’t overlook serious injuries in trauma patients.

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This study looked at how well emergency doctors can use ultrasound machines to examine eyes in patients who suffered eye injuries or sudden vision changes. Out of 61 patients, the ultrasound correctly identified eye problems in 26 cases, including serious issues like retinal detachments and globe injuries, with a 98% agreement rate with more advanced examinations. This is important because it allows emergency doctors to quickly diagnose eye problems and determine whether patients need urgent care or can return for follow-up later. Who this helps: This helps patients experiencing eye injuries and emergency doctors evaluating them.