Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Niels K. Rathlev is active.

Publication


Featured researches published by Niels K. Rathlev.


Academic Emergency Medicine | 2011

International perspectives on emergency department crowding.

Jesse M. Pines; Joshua A. Hilton; Ellen J. Weber; Annechien J. Alkemade; Hasan Al Shabanah; Philip D. Anderson; Michael Bernhard; A Bertini; André Gries; Santiago Ferrandiz; Vijaya Arun Kumar; Veli Pekka Harjola; Barbara Hogan; Bo Madsen; Suzanne Mason; Gunnar Öhlén; Timothy H. Rainer; Niels K. Rathlev; Eric Revue; Drew Richardson; M. Sattarian; Michael J. Schull

The maturation of emergency medicine (EM) as a specialty has coincided with dramatic increases in emergency department (ED) visit rates, both in the United States and around the world. ED crowding has become a public health problem where periodic supply and demand mismatches in ED and hospital resources cause long waiting times and delays in critical treatments. ED crowding has been associated with several negative clinical outcomes, including higher complication rates and mortality. This article describes emergency care systems and the extent of crowding across 15 countries outside of the United States: Australia, Canada, Denmark, Finland, France, Germany, Hong Kong, India, Iran, Italy, The Netherlands, Saudi Arabia, Catalonia (Spain), Sweden, and the United Kingdom. The authors are local emergency care leaders with knowledge of emergency care in their particular countries. Where available, data are provided about visit patterns in each country; however, for many of these countries, no national data are available on ED visits rates or crowding. For most of the countries included, there is both objective evidence of increases in ED visit rates and ED crowding and also subjective assessments of trends toward higher crowding in the ED. ED crowding appears to be worsening in many countries despite the presence of universal health coverage. Scandinavian countries with robust systems to manage acute care outside the ED do not report crowding is a major problem. The main cause for crowding identified by many authors is the boarding of admitted patients, similar to the United States. Many hospitals in these countries have implemented operational interventions to mitigate crowding in the ED, and some countries have imposed strict limits on ED length of stay (LOS), while others have no clear plan to mitigate crowding. An understanding of the causes and potential solutions implemented in these countries can provide a lens into how to mitigate ED crowding in the United States through health policy interventions and hospital operational changes.


The New England Journal of Medicine | 1999

Lorazepam for the Prevention of Recurrent Seizures Related to Alcohol

Gail D'Onofrio; Niels K. Rathlev; Andrew Ulrich; Susan S. Fish; Eric S. Freedland

BACKGROUND AND METHODS Alcohol abuse is one of the most common causes of seizures in adults. In a randomized, double-blind study, we compared lorazepam with placebo for the prevention of recurrent seizures related to alcohol. Over a 21-month period, we studied consecutive patients with chronic alcohol abuse who were at least 21 years of age and who presented to the emergency departments of two hospitals in Boston after a witnessed, generalized seizure. The patients were randomly assigned to receive either 2 mg of lorazepam in 2 ml of normal saline or 4 ml of normal saline intravenously and then observed for six hours. The primary end point was the occurrence of a second seizure during the observation period. RESULTS Of the 229 patients who were initially evaluated, 186 met the entry criteria. In the lorazepam group, 3 of 100 patients (3 percent) had a second seizure, as compared with 21 of 86 patients (24 percent) in the placebo group (odds ratio for seizure with the use of placebo, 10.4; 95 percent confidence interval, 3.6 to 30.2; P<0.001). Forty-two percent of the placebo group were admitted to the hospital, as compared with 29 percent of the lorazepam group (odds ratio for admission, 2.1; 95 percent confidence interval, 1.1 to 4.0; P=0.02). Seven patients in the placebo group and one in the lorazepam group were transported to an emergency department in Boston with a second seizure within 48 hours after hospital discharge. CONCLUSIONS Treatment with intravenous lorazepam is associated with a significant reduction in the risk of recurrent seizures related to alcohol.


American Journal of Roentgenology | 2009

Abdominal 64-MDCT for suspected appendicitis: the use of oral and IV contrast material versus IV contrast material only

Stephan W. Anderson; Jorge A. Soto; Brian C. Lucey; Al Ozonoff; Jacqueline D. Jordan; Jirair Ratevosian; Andrew Ulrich; Niels K. Rathlev; Patricia M. Mitchell; Casey M. Rebholz; James A. Feldman; James T. Rhea

OBJECTIVE The objective of our study was to compare the diagnostic accuracy of IV contrast-enhanced 64-MDCT with and without the use of oral contrast material in diagnosing appendicitis in patients with abdominal pain. MATERIALS AND METHODS We conducted a randomized trial of a convenience sample of adult patients presenting to an urban academic emergency department with acute nontraumatic abdominal pain and clinical suspicion of appendicitis, diverticulitis, or small-bowel obstruction. Patients were enrolled between 8 am and 11 pm when research assistants were present. Consenting subjects were randomized into one of two groups: Group 1 subjects underwent 64-MDCT performed with oral and IV contrast media and group 2 subjects underwent 64-MDCT performed solely with IV contrast material. Three expert radiologists independently reviewed the CT examinations, evaluating for the presence of appendicitis. Each radiologist interpreted 202 examinations, ensuring that each examination was interpreted by two radiologists. Individual reader performance and a combined interpretation performance of the two readers assigned to each case were calculated. In cases of disagreement, the third reader was asked to deliver a tiebreaker interpretation to be used to calculate the combined reader performance. Final outcome was based on operative, clinical, and follow-up data. We compared radiologic diagnoses with clinical outcomes to calculate the diagnostic accuracy of CT in both groups. RESULTS Of the 303 patients enrolled, 151 patients (50%) were randomized to group 1 and the remaining 152 (50%) were randomized to group 2. The combined reader performance for the diagnosis of appendicitis in group 1 was a sensitivity of 100% (95% CI, 76.8-100%) and specificity of 97.1% (95% CI, 92.7-99.2%). The performance in group 2 was a sensitivity of 100% (73.5-100%) and specificity of 97.1% (92.9-99.2%). CONCLUSION Patients presenting with nontraumatic abdominal pain imaged using 64-MDCT with isotropic reformations had similar characteristics for the diagnosis of appendicitis when IV contrast material alone was used and when oral and IV contrast media were used.


Annals of Emergency Medicine | 1994

The lack of efficacy of phenytoin in the prevention of recurrent alcohol-related seizures

Niels K. Rathlev; Gail D'Onofrio; Susan S. Fish; Patricia Maher Harrison; Edward Bernstein; Robert W. Hossack; Leslie Pickens

STUDY OBJECTIVE To determine the effectiveness of IV phenytoin in the prevention of recurrent alcohol-related seizures during a six-hour observation period. DESIGN Prospective, randomized, double-blind trial comparing IV phenytoin with normal saline placebo, conducted from January 1990 through December 1991. SETTING Emergency department of an inner-city, university-affiliated, teaching hospital. PARTICIPANTS One hundred forty-seven consecutive adults more than 25 years of age who presented with a witnessed generalized seizure in the setting of chronic alcohol abuse. INTERVENTIONS Eligible subjects received 15 mg/kg of phenytoin or normal saline at an equivalent volume over 20 minutes by IV pump. Patients were observed for six hours in the ED after drug administration. Those experiencing a second seizure were admitted to the hospital. RESULTS One hundred patients completed the study. Recurrent alcohol-related seizures occurred in ten of 49 patients (20.4%) in the phenytoin group and in 12 of 51 patients (23.5%) in the placebo group. chi 2 analysis revealed no statistically significant difference between the two groups (chi 2 = 0.142; P = .706). The 95% confidence interval for the difference was -0.13 to + 0.19. The relative risk of recurrence between groups was 0.868 with a 95% confidence interval of 0.412 to 1.826. CONCLUSION No significant benefit of phenytoin administration in the prevention of recurrent alcohol-related seizures during a six-hour observation period was demonstrated.


Annals of Emergency Medicine | 2015

Opioid Prescribing in a Cross Section of US Emergency Departments

Jason A. Hoppe; Lewis S. Nelson; Jeanmarie Perrone; Scott G. Weiner; Niels K. Rathlev; Leon D. Sanchez; Matthew Babineau; Christopher A. Griggs; Patricia M. Mitchell; Jiemin Ma; Wyatt Hoch; Vicken Y. Totten; Matthew Salzman; Rupa Karmakar; Janetta L. Iwanicki; Brent W. Morgan; Adam C. Pomerleau; João H. Delgado; Amanda Medoro; Patrick Whiteley; Stephen Offerman; Keith Hemmert; Patrick M. Lank; Josef G. Thundiyil; Andrew Thomas; Sean Chagani; Francesca L. Beaudoin; Franklin D. Friedman; Nathan J. Cleveland; Krishanthi Jayathilaka

STUDY OBJECTIVE Opioid pain reliever prescribing at emergency department (ED) discharge has increased in the past decade but specific prescription details are lacking. Previous ED opioid pain reliever prescribing estimates relied on national survey extrapolation or prescription databases. The main goal of this study is to use a research consortium to analyze the characteristics of patients and opioid prescriptions, using a national sample of ED patients. We also aim to examine the indications for opioid pain reliever prescribing, characteristics of opioids prescribed both in the ED and at discharge, and characteristics of patients who received opioid pain relievers compared with those who did not. METHODS This observational, multicenter, retrospective, cohort study assessed opioid pain reliever prescribing to consecutive patients presenting to the consortium EDs during 1 week in October 2012. The consortium study sites consisted of 19 EDs representing 1.4 million annual visits, varied geographically, and were predominantly academic centers. Medical records of all patients aged 18 to 90 years and discharged with an opioid pain reliever (excluding tramadol) were individually abstracted by standardized chart review by investigators for detailed analysis. Descriptive statistics were generated. RESULTS During the study week, 27,516 patient visits were evaluated in the consortium EDs; 19,321 patients (70.2%) were discharged and 3,284 (11.9% of all patients and 17.0% of discharged patients) received an opioid pain reliever prescription. For patients prescribed an opioid pain reliever, mean age was 41 years (SD 14 years) and 1,694 (51.6%) were women. Mean initial pain score was 7.7 (SD 2.4). The most common diagnoses associated with opioid pain reliever prescribing were back pain (10.2%), abdominal pain (10.1%), and extremity fracture (7.1%) or sprain (6.5%). The most common opioid pain relievers prescribed were oxycodone (52.3%), hydrocodone (40.9%), and codeine (4.8%). Greater than 99% of pain relievers were immediate release and 90.0% were combination preparations, and the mean and median number of pills was 16.6 (SD 7.6) and 15 (interquartile range 12 to 20), respectively. CONCLUSION In a study of ED patients treated during a single week across the country, 17% of discharged patients were prescribed opioid pain relievers. The majority of the prescriptions had small pill counts and almost exclusively immediate-release formulations.


Pain | 2014

Incidence and predictors of neck and widespread pain after motor vehicle collision among US litigants and nonlitigants

Samuel A. McLean; Jacob C. Ulirsch; Gary D. Slade; A. Soward; Robert A. Swor; David A. Peak; Jeffrey S. Jones; Niels K. Rathlev; David C. Lee; Robert M. Domeier; Phyllis L. Hendry; Andrey V. Bortsov; Eric Bair

Summary Most individuals with pain sequelae 6 weeks after motor vehicle collision are not engaged in litigation. Evidence supports bidirectional effects between litigation and post–motor vehicle collision musculoskeletal pain outcomes. ABSTRACT Debate continues regarding the influence of litigation on pain outcomes after motor vehicle collision (MVC). In this study we enrolled European Americans presenting to the emergency department (ED) in the hours after MVC (n = 948). Six weeks later, participants were interviewed regarding pain symptoms and asked about their participation in MVC‐related litigation. The incidence and predictors of neck pain and widespread pain 6 weeks after MVC were compared among those engaged in litigation (litigants) and those not engaged in litigation (nonlitigants). Among the 859 of 948 (91%) participants completing 6‐week follow‐up, 711 of 849 (83%) were nonlitigants. Compared to nonlitigants, litigants were less educated and had more severe neck pain and overall pain, and a greater extent of pain at the time of ED evaluation. Among individuals not engaged in litigation, persistent pain 6 weeks after MVC was common: 199 of 711 (28%) had moderate or severe neck pain, 92 of 711 (13%) had widespread pain, and 29 of 711 (4%) had fibromyalgia‐like symptoms. Incidence of all 3 outcomes was significantly higher among litigants. Initial pain severity in the ED predicted pain outcomes among both litigants and nonlitigants. Markers of socioeconomic disadvantage predicted worse pain outcomes in litigants but not nonlitigants, and individual pain and psychological symptoms were less predictive of pain outcomes among those engaged in litigation. These data demonstrate that persistent pain after MVC is common among those not engaged in litigation, and provide evidence for bidirectional influences between pain outcomes and litigation after MVC.


Pain | 2013

Polymorphisms in the glucocorticoid receptor co-chaperone FKBP5 predict persistent musculoskeletal pain after traumatic stress exposure.

Andrey V. Bortsov; Jennifer E. Smith; Luda Diatchenko; A. Soward; Jacob C. Ulirsch; Catherine Rossi; Robert A. Swor; William E. Hauda; David A. Peak; Jeffrey S. Jones; Debra S. Holbrook; Niels K. Rathlev; Kelly A. Foley; David C. Lee; Renee Collette; Robert M. Domeier; Phyllis L. Hendry; Samuel A. McLean

&NA; An association is demonstrated between genetic polymorphisms in the gene coding for a key regulatory molecule in the hypothalamic‐pituitary‐adrenal axis and persistent pain after trauma. &NA; Individual vulnerability factors influencing the function of the hypothalamic‐pituitary‐adrenal axis may contribute to the risk of the development of persistent musculoskeletal pain after traumatic stress exposure. The objective of the study was to evaluate the association between polymorphisms in the gene encoding FK506 binding protein 51, FKBP5, a glucocorticoid receptor co‐chaperone, and musculoskeletal pain severity 6 weeks after 2 common trauma exposures. The study included data from 2 prospective emergency department‐based cohorts: a discovery cohort (n = 949) of European Americans experiencing motor vehicle collision and a replication cohort of adult European American women experiencing sexual assault (n = 53). DNA was collected from trauma survivors at the time of initial assessment. Overall pain and neck pain 6 weeks after trauma exposure were assessed using a 0–10 numeric rating scale. After adjustment for multiple comparisons, 6 FKBP5 polymorphisms showed significant association (minimum P < 0.0001) with both overall and neck pain in the discovery cohort. The association of rs3800373, rs9380526, rs9394314, rs2817032, and rs2817040 with neck pain and/or overall pain 6 weeks after trauma was replicated in the sexual assault cohort, showing the same direction of the effect in each case. The results of this study indicate that genetic variants in FKBP5 influence the severity of musculoskeletal pain symptoms experienced during the weeks after motor vehicle collision and sexual assault. These results suggest that glucocorticoid pathways influence the development of persistent posttraumatic pain, and that such pathways may be a target of pharmacologic interventions aimed at improving recovery after trauma.


Journal of Emergency Medicine | 2011

Complications of tube thoracostomy placement in the emergency department

Kinjal Sethuraman; David K. Duong; Supriya D. Mehta; Tara; Darcey Crawford; Jill St. George; Niels K. Rathlev

BACKGROUND Emergency medicine residents frequently perform invasive procedures, including tube thoracostomy (TT), that inherently place patients at risk for complications. OBJECTIVES The purpose of the study was to assess the prevalence and types of complications from TT in an academic emergency department (ED). METHODS A combined prospective and retrospective, observational study of all patients who had TT between December 2002 and January 2006 was performed. Exclusion criteria included age < 15 years and tube placement at an outside facility. Complications detected in the ED were defined as immediate, whereas those discovered later were defined as delayed. Complications requiring corrective surgical intervention, administration of blood products, or intravenous antibiotics were defined as major. Bivariate and multivariate analyses were used to identify operator and patient factors associated with complications. RESULTS TTs were placed in 242 patients, and 90 (37%; 95% confidence interval [CI] 31.1-43.3%) experienced a complication. Major complications included one intercostal artery laceration, one retroperitoneal placement, and empyema in 2 patients. In multivariate analysis, blunt injury excluding motor vehicle accidents (odds ratio [OR] 2.57; 95% CI 1.27-5.21) and spontaneous pneumothorax (OR 3.84; 95% CI 1.80-8.18) were associated with all complications. TT size < 36 French and blunt injury excluding motor vehicle accidents were associated with immediate complications and spontaneous pneumothorax was associated with delayed complications. CONCLUSIONS The vast majority of complications from TT in the ED were minor. The prevalence of complications was consistent with previous reports of TTs placed by non-emergency-medicine-trained physicians outside the ED. The findings can be used to identify avoidable complications and improve residency training.


Spine | 2005

Stability of Cervical Spine Fractures After Gunshot Wounds to the Head and Neck

Ron Medzon; Todd Rothenhaus; Christopher M. Bono; Gene A. Grindlinger; Niels K. Rathlev

Learning Objectives: After participating in this CME activity, the obstetrician/gynecologist should be better able to: 1. Accurately counsel patients on the risks and benefits of initiating hormone therapy (HT) for vasomotor symptoms (VMS). 2. Apply current evidence to select appropriate HT for treatment of VMS in uncomplicated postmenopausal women. 3. Compare the risks and benefits of HT for special subpopulations of menopausal patients, such as women with a history of breast cancer, BRCA mutation carriers, those with hypertension, women older than 65 years, and those at a high risk for or with a history of venous thromboembolism.


BMC Emergency Medicine | 2011

Using emergency department-based inception cohorts to determine genetic characteristics associated with long term patient outcomes after motor vehicle collision: Methodology of the CRASH study

Timothy F. Platts-Mills; L. Ballina; Andrey V. Bortsov; A. Soward; Robert A. Swor; Jeffrey S. Jones; David C. Lee; David A. Peak; Robert M. Domeier; Niels K. Rathlev; Phyllis L. Hendry; Samuel A. McLean

BackgroundPersistent musculoskeletal pain and psychological sequelae following minor motor vehicle collision (MVC) are common problems with a large economic cost. Prospective studies of pain following MVC have demonstrated that demographic characteristics, including female gender and low education level, and psychological characteristics, including high pre-collision anxiety, are independent predictors of persistent pain. These results have contributed to the psychological and social components of a biopsychosocial model of post-MVC pain pathogenesis, but the biological contributors to the model remain poorly defined. Recent experimental studies indicate that genetic variations in adrenergic system function influence the vulnerability to post-traumatic pain, but no studies have examined the contribution of genetic factors to existing predictive models of vulnerability to persistent pain.Methods/DesignThe Project CRASH study is a federally supported, multicenter, prospective study designed to determine whether variations in genes affecting synaptic catecholamine levels and alpha and beta adrenergic receptor function augment social and psychological factors in a predictive model of persistent musculoskeletal pain and posttraumatic stress disorder (PTSD) following minor MVC. The Project CRASH study will assess pain, pain interference and PTSD symptoms at 6 weeks, 6 months, and 1 year in approximately 1,000 patients enrolled from 8 Emergency Departments in four states with no-fault accident laws.DiscussionThe results from this study will provide insights into the pathophysiology of persistent pain and PTSD following MVC and may serve to improve the ability of clinicians and researchers to identify individuals at high risk for adverse outcomes following minor MVC.

Collaboration


Dive into the Niels K. Rathlev's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

David C. Lee

North Shore University Hospital

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Samuel A. McLean

University of North Carolina at Chapel Hill

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Andrey V. Bortsov

University of North Carolina at Chapel Hill

View shared research outputs
Top Co-Authors

Avatar

J. Jones

University of North Carolina at Chapel Hill

View shared research outputs
Top Co-Authors

Avatar

A. Soward

University of North Carolina at Chapel Hill

View shared research outputs
Researchain Logo
Decentralizing Knowledge