Abstract:
STUDY OBJECTIVE:The optimal ratio of chest compressions to ventilations during cardiopulmonary resuscitation (CPR) is unknown. We determine 24-hour survival and neurologic outcome, comparing 4 different chest compression-ventilation CPR ratios in a porcine model of prolonged cardiac arrest and bystander CPR. METHODS:Forty swine were instrumented and subjected to 3 minutes of ventricular fibrillation followed by 12 minutes of CPR by using 1 of 4 models of chest compression-ventilation ratios as follows: (1) standard CPR with a ratio of 15:2; (2) CC-CPR, chest compressions only with no ventilations for 12 minutes; (3) 50:5-CPR, CPR with a ratio of 50:5 compressions to ventilations, as advocated by authorities in Great Britain; and (4) 100:2-CPR, 4 minutes of chest compressions only followed by CPR with a ratio of 100:2 compressions to ventilations. CPR was followed by standard advanced cardiac life support, 1 hour of critical care, and 24 hours of observation, followed by a neurologic evaluation. RESULTS:There were no statistically significant differences in 24-hour survival among the 4 groups (standard CPR, 7/10; CC-CPR, 7/10; 50:5-CPR, 8/10; 100:2-CPR, 9/10). There were significant differences in 24-hour neurologic function, as evaluated by using the swine cerebral performance category scale. The animals receiving 100:2-CPR had significantly better neurologic function at 24 hours than the standard CPR group with a 15:2 ratio (1.5 versus 2.5; P =.007). The 100:2-CPR group also had better neurologic function than the CC-CPR group, which received chest compressions with no ventilations (1.5 versus 2.3; P =.027). Coronary perfusion pressures, aortic pressures, and myocardial and kidney blood flows were not significantly different among the groups. Coronary perfusion pressure as an integrated area under the curve was significantly better in the CC-CPR group than in the standard CPR group (P =.04). Minute ventilation and PaO (2) were significantly lower in the CC-CPR group. CONCLUSION:In this experimental model of bystander CPR, the group receiving compressions only for 4 minutes followed by a compression-ventilation ratio of 100:2 achieved better neurologic outcome than the group receiving standard CPR and CC-CPR. Consideration of alternative chest compression-ventilation ratios might be appropriate.
journal_name
Ann Emerg Medjournal_title
Annals of emergency medicineauthors
Sanders AB,Kern KB,Berg RA,Hilwig RW,Heidenrich J,Ewy GAdoi
10.1067/mem.2002.129507subject
Has Abstractpub_date
2002-12-01 00:00:00pages
553-62issue
6eissn
0196-0644issn
1097-6760pii
S0196064402006510journal_volume
40pub_type
杂志文章abstract:STUDY OBJECTIVE:Urinary catheters are often placed in the emergency department (ED) and are associated with an increased safety risk for hospitalized patients. We evaluate the effect of an intervention to reduce unnecessary placement of urinary catheters in the ED. METHODS:Eighteen EDs from 1 health system underwent t...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2014.02.013
更新日期:2014-06-01 00:00:00
abstract::A 24-year-old man was assaulted and sustained a stab wound to the left lower neck. When he arrived at the emergency department, he was hemodynamically stable. Although the wound had penetrated the platysma, on initial evaluation the patient did not appear to have sustained significant injury. Closer examination of the...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(05)82619-8
更新日期:1990-12-01 00:00:00
abstract::During a 3-month period, a 33-year-old man presented to the emergency department on 4 occasions with dyspnea, palpitations, and syncope. His initial presentation was accompanied by acute myocardial injury and ventricular fibrillation. An extensive evaluation spanned the 3 months and included echocardiography, cardiac ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2005.02.002
更新日期:2005-06-01 00:00:00
abstract:STUDY OBJECTIVE:To determine the effect of the institution of out-of-hospital albuterol treatments for acute asthma on out-of-hospital time intervals emergency department (ED) morbidity. DESIGN:Retrospective chart and ambulance run report review. PARTICIPANTS:All patients who presented with a diagnosis of asthma on t...
journal_title:Annals of emergency medicine
pub_type: 临床试验,杂志文章
doi:10.1016/s0196-0644(94)70205-5
更新日期:1994-11-01 00:00:00
abstract:STUDY OBJECTIVE:Cost concerns may inhibit emergency medical services (EMS) use. Novel tax-based and subscription prepayment programs indemnify patients against the cost of EMS treatment and transport. We determine whether the presence of (or enrollment in) prepayment plans increase EMS use among patients with acute che...
journal_title:Annals of emergency medicine
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:
更新日期:2000-06-01 00:00:00
abstract::Few tools exist that are sufficiently robust to allow manipulation of key input variables to produce casualty estimates resulting from high-consequence events reflecting local or specific regions of concern. This article describes the design and utility of a computerized modeling simulation tool, Electronic Mass Casua...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2008.09.014
更新日期:2009-02-01 00:00:00
abstract::The sudden emergence of 2009 H1N1 influenza in the spring of that year sparked a surge in visits to emergency departments in New York City and other communities. A larger, second wave of cases was anticipated the following autumn. To reduce a potential surge of health system utilization without denying needed care, we...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2010.04.005
更新日期:2010-09-01 00:00:00
abstract::We conducted a retrospective chart review to determine whether the treatment of uncomplicated convulsions in emergency department patients with a history of epilepsy complied with a clinical standard and whether the degree of compliance with the standard was related to the treating physician's specialty or postgraduat...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(05)82336-4
更新日期:1990-04-01 00:00:00
abstract::A 57-year-old woman presented in severe respiratory distress 30 minutes after ingesting hydrochlorothiazide. Pulmonary edema was evident clinically and radiographically. A noncardiogenic etiology was suggested by the lack of jugular venous distention, S3 gallop, or pedal edema, and the presence of a normal cardiac sil...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(87)80531-0
更新日期:1987-08-01 00:00:00
abstract::Acute asthma exacerbations are common complaints in patients who present to the emergency department. A prospective, double-blinded study was designed to evaluate how frequency of dosing of an inhaled beta-agonist, metaproterenol (Alupent inhalation solution) would affect patient response, length of stay in the ED, an...
journal_title:Annals of emergency medicine
pub_type: 临床试验,杂志文章
doi:10.1016/s0196-0644(05)82134-1
更新日期:1990-01-01 00:00:00
abstract::Autoerythrocyte sensitization syndrome is characterized by sudden and spontaneous painful bruising and swelling occurring in young female patients with psychiatric disorders. This syndrome may present with such severe swelling of involved areas that aspiration or excision may be needed to relieve pressure. The present...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(89)80019-8
更新日期:1989-07-01 00:00:00
abstract:STUDY OBJECTIVE:The objective of our study is to evaluate the association between Ohio's April 2012 emergency physician guidelines aimed at reducing inappropriate opioid prescribing and the number and type of opioid prescriptions dispensed by emergency physicians. METHODS:We used Ohio's prescription drug monitoring pr...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2017.03.057
更新日期:2017-12-01 00:00:00
abstract:STUDY OBJECTIVE:We evaluate the importance of hospital bed occupancy for 30-day mortality, inhospital mortality, readmission for inpatient care within 30 days, and revisits to the emergency department (ED) within 7 days among all adult patients visiting the ED. METHODS:This was an observational cohort study including ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2019.11.009
更新日期:2020-08-01 00:00:00
abstract::Right ventricular infarction due to ischemic heart disease can be diagnosed by a right precordial electrogram or by first-pass radionuclide angiography (FPRNA). Prior FPRNA studies have shown that cardiac dysfunction after blunt chest trauma (myocardial contusion) is most often due to right ventricular dysfunction. We...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(88)80665-6
更新日期:1988-09-01 00:00:00
abstract:STUDY OBJECTIVE:To evaluate selective aortic arch perfusion (SAAP) with an oxygenated fluorocarbon emulsion, with and without aortic arch epinephrine during cardiac arrest. METHODS:This randomized, controlled study, undertaken at a university research laboratory, involved 15 mixed-breed dogs. After 10 minutes of ventr...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(97)70244-0
更新日期:1997-05-01 00:00:00
abstract::Nontraumatic gas gangrene is extremely rare. It usually occurs following ulceration or perforation of an abdominal or pelvic viscus in persons having impaired host immune defenses. A fatal case of nontraumatic Clostridium septicum septicemia and myonecrosis in an elderly diabetic man with a perforated colon carcinoma ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(81)80121-7
更新日期:1981-06-01 00:00:00
abstract::This double-blind study compared the analgesic effects of morphine with those of butorphanol in patients who presented with pain because of sickle cell crisis. Patients were placed at bed rest, administered IV hydration, and randomly assigned on each visit to receive either 2 mg IM butorphanol or 6 mg IM morphine ever...
journal_title:Annals of emergency medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0196-0644(88)80554-7
更新日期:1988-08-01 00:00:00
abstract:STUDY OBJECTIVES:To test the feasibility of using handheld, battery-operated chemical analyzers by EMS personnel in a wilderness environment to aid in the diagnosis and management of heat illness. METHODS:During the summer of 1996, 3 portable clinical analyzers (i-STAT Corp, Princeton, NJ) were kept at different locat...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(99)70306-9
更新日期:1999-04-01 00:00:00
abstract::Pancreatic injury after blunt abdominal trauma can be subtle and delayed in its onset. We present a 24-year-old man who became jaundiced 16 days after he experienced blunt trauma. He was found to have an isolated pancreatic contusion. We discuss the initial evaluation for blunt pancreatic injury, the differential diag...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(96)70171-3
更新日期:1996-05-01 00:00:00
abstract:STUDY OBJECTIVE:Anecdotal concerns suggest that health management organization (HMO) membership instructions may deter members from calling 911 or going to an emergency department for a perceived emergency. This study examines such instructions, specifically in regard to their definition of an emergency condition and a...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(99)70267-2
更新日期:1999-07-01 00:00:00
abstract::Presented is a case of syncope as the initial sign of a painless aortic dissection. The patient was stabilized by percutaneous drainage of a hemopericardium, and then underwent angiography and successful operative repair. Although uncommon, painless aortic dissection should be included in the differential diagnosis of...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(84)80528-4
更新日期:1984-07-01 00:00:00
abstract:STUDY OBJECTIVE:We examine the central venous catheter placement rate during the implementation of an ultrasound-guided peripheral intravenous access program. METHODS:We conducted a time-series analysis of the monthly central venous catheter rate among adult emergency department (ED) patients in an academic urban ED b...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2012.09.016
更新日期:2013-02-01 00:00:00
abstract:STUDY OBJECTIVE:Single-payer health care is supported by most Americans, but the effect of single payer on any particular sector of the health care market has not been well explored. We examine the effect of 2 potential single-payer designs, Medicare for All and an alternative including Medicare and Medicaid, on total ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/j.annemergmed.2020.03.003
更新日期:2020-10-01 00:00:00
abstract::Presented is the case of a man who had localized depigmentation after local injection of triamcinolone diacetate. Search of the literature indicates that this is a rare complication of such therapy. Localized depigmentation may have important cultural implications for dark-skinned patients. There is some experimental ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(05)80847-9
更新日期:1991-07-01 00:00:00
abstract:STUDY OBJECTIVE:Video imaging of intubation as seen by the laryngoscopist has not been a part of traditional instruction methods, and its potential impact on novice intubation success rates has not been evaluated. METHODS:We prospectively tracked the success rates of novice intubators in paramedic classes who were req...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1067/mem.2001.111516
更新日期:2001-01-01 00:00:00
abstract::The use of flumazenil, a benzodiazepine antagonist, was studied in two patients with coma of unknown etiology. One patient ingested 20.5 mg alprazolam before crashing his truck into parked automobiles. The patient was awakened by flumazenil administration, and the severity of his injuries was evaluated reliably. A sec...
journal_title:Annals of emergency medicine
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/s0196-0644(05)82054-2
更新日期:1990-03-01 00:00:00
abstract::Presented is the case of a 10-year-old child who presented in cardiopulmonary arrest from hypovolemic shock due to pathologic splenic rupture of undetermined etiology. Despite aggressive resuscitation efforts, the patient died. Although rare, pathologic rupture of an abnormal spleen must be considered in the patient w...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(82)80040-1
更新日期:1982-08-01 00:00:00
abstract:STUDY OBJECTIVE:To determine whether abdominal ultrasound can be used routinely as the primary screening test to identify the need for laparotomy in trauma patients. METHODS:Ultrasound was used at a Level II trauma center as a primary screening test for evaluation of intraabdominal injury. We reviewed the charts of al...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(97)70343-3
更新日期:1997-03-01 00:00:00
abstract::The Bahamas is an archipelago of 700 islands with the majority of the population concentrated on just 2 islands: New Providence and Grand Bahama. Most emergency medical services are provided by Princess Margaret Hospital and Rand Memorial Hospital located respectively on those 2 islands. A detailed description of the ...
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1067/mem.2001.118865
更新日期:2001-12-01 00:00:00
abstract::This study was undertaken to determine the clinical circumstances of femoral fractures in children. The study was a retrospective investigation of 117 consecutive patients with femoral fractures admitted to The Children's Mercy Hospital, Kansas City, Missouri, from December 1975 to September 1979. Of the 117 patients....
journal_title:Annals of emergency medicine
pub_type: 杂志文章
doi:10.1016/s0196-0644(82)80492-7
更新日期:1982-04-01 00:00:00