Tuberculosis screening: a review and a potential role for prehospital care providers.

Although tuberculosis has declined throughout this century, it has recently made a resurgence in our society. A major step in proper control measures is effective tuberculosis screening programs. Up to this point, prehospital care personnel have had a limited role in preventive medicine. In this article, it is proposed that prehospital care personnel can be a factor in the fight against tuberculosis through the conducting of tuberculin skin testing. The epidemiology of tuberculosis, tuberculosis control strategies, the current role of prehospital care in public health, the administration and interpretation of the tuberculin skin test, and tuberculosis high-risk groups are also reviewed.

Tramadol versus hydrocodone-acetaminophen in acute musculoskeletal pain: a randomized, double-blind clinical trial.

STUDY OBJECTIVE: To evaluate the efficacy of an oral tramadol preparation versus that of an oral hydrocodone-acetaminophen preparation in acute musculoskeletal pain. METHODS: A randomized, prospective, double-blind clinical trial was conducted in an urban teaching emergency department with an annual census of 41,000. Participants comprised a convenience sample of 68 adult ED patients with acute musculoskeletal pain caused by minor trauma. Thirty-three patients received tramadol (100 mg), and 35 patients received hydrocodone-acetaminophen (5 mg hydrocodone with 500 mg acetaminophen). The drugs were prepared in identical-appearing capsules. Pain was evaluated by a 100-mm visual analog scale (VAS) at baseline and at 30, 60, 90, 120, and 180 minutes after dosing. VAS scores were analyzed by 2-way repeated-measures ANOVA, and nominal data were analyzed by Fisher's exact test. RESULTS: Mean pain scores did not differ at baseline (tramadol, 68.3+/-21.8; hydrocodone-acetaminophen, 69.1+/-17.8; P=NS) but were significantly lower in the hydrocodone-acetaminophen group beginning at 30 minutes through 180 minutes. There were 6 dropouts as a result of reported inadequate analgesia, 3 in each group (P=NS). The discharge diagnoses and prevalence of side effects did not differ significantly between groups. CONCLUSION: Tramadol provides inferior analgesia to hydrocodone-acetaminophen in ED patients with acute musculoskeletal pain.

Use of automated external defibrillators by police officers for treatment of out-of-hospital cardiac arrest.

OBJECTIVE: To determine the feasibility of police officers providing defibrillation with automated external defibrillators (AEDs) and to assess the effectiveness of this strategy in reducing time to defibrillation of victims of out-of-hospital sudden cardiac arrest. METHODS: This was a prospective, interventional cohort study with historical controls conducted in 7 suburban communities in which police usually arrived at the scene of medical emergencies before EMS personnel. All adult patients who suffered cardiac arrest before EMS arrival and on whom EMS personnel attempted resuscitation were enrolled. Police officers who were trained to use and equipped with AEDs during the intervention phase were dispatched simultaneously with EMS to medical emergencies. Police were instructed to use the AED immediately on determination of pulselessness. Outcome measures were the difference between control and intervention phases in interval from the time the call was received at dispatch to the time of first defibrillation and in rate of survival to hospital discharge for patients initially in ventricular fibrillation. RESULTS: EMS personnel attempted 183 resuscitations in the control phase and 283 during the intervention; of these, 80 (44%) and 127 (45%), respectively, involved patients with initial ventricular fibrillation rhythms. Mean time to defibrillation decreased from 11.8+/-4.7 minutes in the control phase to 8.7+/-3.7 minutes in the intervention phase (P<.0001). Survival to hospital discharge of patients in ventricular fibrillation did not differ between phases (6% control versus 14% intervention, P=.1). When police arrived before EMS personnel, shock administered by police compared with shock administered by EMS was associated with improved survival (26% [12/46] versus 3% [1/29], P=.01). Logistic regression analysis revealed AED use was an independent predictor of survival to hospital discharge. CONCLUSION: In 7 suburban communities, police use of AEDs decreased time to defibrillation and was an independent predictor of survival to hospital discharge.

Quality indicators for out-of-hospital emergency medical services: the paramedics' perspective.

OBJECTIVE: Out-of-hospital emergency medical services (EMS) need relevant and measurable indicators of quality. Those front-line workers who provide service directly to the customer are integral to the process of defining quality. The authors' objective was to obtain from paramedics, the front-line workers in the EMS system, their perspective on quality of care. METHODS: During regularly scheduled education sessions, 102 of the 140 field paramedics from a large municipal EMS system attended a presentation on total quality management. The paramedics were then assigned to focus groups and asked to identify quality indicators and provide recommendations for how they should be measured. RESULTS: Eighteen different quality indicators were identified. In addition, the paramedics suggested 17 ways to measure these proposed quality indicators. CONCLUSIONS: From the perspective of the study participants, indicators of the quality of out-of-hospital care differ from many used in traditional EMS quality assurance programs. Future studies should investigate the applicability of these indicators to the total quality management of EMS systems.

Analgesic practice for acute orthopedic trauma pain in Costa Rican emergency departments.

STUDY OBJECTIVE: Studies in US emergency departments have demonstrated that pain is undertreated in adults and children. Previous studies have also demonstrated cultural differences in the expression and perception of pain. The objective of this investigation was to describe the analgesic practices and patient pain responses in two Costa Rican EDs in light of possible differences due to cultural variation. METHODS: We carried out a prospective, noninterventional observational assessment protocol of a convenience sample of patients being treated for orthopedic trauma in two university-affiliated urban teaching hospital EDs. Children between the ages of 5 and 12 years and all adults, ages 16 to 63, who presented with painful orthopedic trauma were included. Patients quantified their pain on arriving at and before leaving the ED. Children used a Face Interval Scale ranging from 1 (no pain) to 9 (maximum pain), and adults used a numeric rating scale ranging from 0 to 10. RESULTS: One fourth of pediatric and more than half of all adult patients had no reduction in their pain scores on leaving the ED. Eleven percent of adults and fewer than 4% of children received pain treatment while in the ED. Fewer than half of all patients were sent home with analgesics. We observed no use of opioids in the ED for analgesia. CONCLUSION: Our data illustrate that both adults and children with severe pain resulting from orthopedic injury in the Costa Rican EDs we studied often receive inadequate or no analgesic treatment. This finding suggests that the phenomenon of oligoanalgesia is more widespread and resistant to cultural differences. We also noted a reluctance to use opioids in this setting.

Intramuscular ketorolac versus oral ibuprofen in acute musculoskeletal pain.

STUDY OBJECTIVE: To evaluate the efficacy of IM ketorolac versus that of oral ibuprofen in acute musculoskeletal pain. DESIGN: Randomized, prospective, double-blind clinical trial. SETTING: Urban teaching emergency department with an annual census of 43,000. PARTICIPANTS: Convenience sample of 82 patients aged 18 to 70 years with acute musculoskeletal pain due to trauma. INTERVENTIONS: Forty-two subjects each received 60 mg ketorolac by IM injection and ingested a placebo capsule. Forty subjects each ingested 800 mg ibuprofen and received a placebo (saline) IM injection. Pain was evaluated with a 100-mm visual analog scale at baseline and 15, 30, 45, 60, 75, 90, and 120 minutes after dosing. The prevalence of side effects was elicited in each patient. RESULTS: Mean pain scores improved in each group during the course of the study but did not significantly differ between groups at baseline or at any subsequent interval. The numbers of dropouts due to inadequate analgesia and prevalence of side effects in the two groups did not differ significantly. CONCLUSION: IM ketorolac and oral ibuprofen provide comparable analgesia in ED patients with acute musculoskeletal pain.

Effect of out-of-hospital defibrillation by basic life support providers on cardiac arrest mortality: a metaanalysis.

STUDY OBJECTIVE: Although some studies demonstrate otherwise, we hypothesized that metaanalysis would demonstrate a reduction in the relative risk of mortality when basic life support (BLS) providers can defibrillate out-of-hospital cardiac arrest patients. DESIGN: Metaanalysis of studies meeting the following criteria: single-tier or two-tier emergency medical service (EMS) system, survival to hospital discharge for patients in ventricular fibrillation, and manual and/or automatic external defibrillators. The alpha error rate was .05. RESULTS: Seven trials qualified for metaanalysis. Across all trials, the risk of mortality for BLS care with defibrillation versus that without was .915 (P = .0003). Separate subset analyses of single-tier and two-tier EMS systems demonstrated similar results. CONCLUSION: BLS defibrillation can reduce the relative risk of death for out-of-hospital cardiac arrest victims in ventricular fibrillation. Weaknesses in individual study designs and regional clustering limit the strength of this metaanalysis and conclusion.

Out-of-hospital deliveries: a five-year experience.

INTRODUCTION: Prehospital providers regularly encounter patients with obstetrical emergencies. This study determined the frequency and outcome of out-of-hospital deliveries in an urban, all advanced life support (ALS) emergency medical services (EMS) system. METHODS: Retrospective review of all out-of-hospital records that involved women delivering babies in the care of prehospital providers from 1984-1988. The EMS system answered an average of 62,000 calls during the study period. The records of these patients were identified through a computer database. RESULTS: A total of 81 out-of-hospital deliveries (1.4/month) occurred during the study years. The average age of the mothers was 24 years, and the average gestation period was 30 weeks. The women had an average of three previous pregnancies and two previous deliveries, and 10 were primagravida. Seventy-two (89%) of the deliveries occurred in the home. The paramedics encountered a variety of obstetrical and neonatal complications in 34% of the patient encounters. Nine neonates were delivered prior to the arrival of the paramedic team. Twenty-four neonates had Apgar scores calculated, and the one- and five-minute scores averaged eight and nine respectively. Five of the mothers had no prenatal care. Maternal complications included four patients noted to be hypertensive with the delivery, nine patients had some degree of vaginal bleeding, and in 33 patients, the prehospital providers did not deliver the placenta in the field. An EMS physician was in attendance for only two of the out-of-hospital deliveries. DISCUSSION: In this urban EMS system, out-of-hospital deliveries, especially pre-term deliveries, are a common event. There appears to be a significant number of neonatal complications that confront paramedics. Generally, the paramedics were deficient in their documentation of the neonatal assessment. Continuing educational programs for paramedics should include reviewing normal and complicated vaginal deliveries as well as ALS measures for neonates. Protocols for obstetrical emergencies need to be developed and subjected to quality improvement measures. CONCLUSIONS: Paramedics, especially those in urban settings, are likely to encounter obstetrical and neonatal emergencies and a significant number of associated complications. Emergency medical services systems and medical directors should have in place continuing educational programs, patient-care protocols, and continuous quality improvement measures to evaluate the care rendered to patients having out-of-hospital deliveries.

The syringe aspiration technique to verify endotracheal tube position.

This prospective, clinical study was performed to determine the utility of the syringe aspiration technique (SAT) to verify endotracheal tube (ETT) position. Ninety consecutive patients requiring urgent intubation in the emergency department or prehospital setting were enrolled in the study. The SAT correctly identified intratracheal ETT placement in 88 patients and esophageal misplacement in 2 patients. Ultimately, standard detection techniques were used to confirm ETT placement. The SAT was an accurate means of verifying ETT placement.

Reliability of the Glasgow Coma Scale when used by emergency physicians and paramedics.

We sought to determine the reliability of the Glasgow Coma Scale (GCS) when used by emergency physicians and paramedics. We performed a prospective sequential trial in a classroom setting, with subjects blinded to others' scoring. Nineteen university-affiliated emergency physicians and 41 professional paramedics from an urban EMS system voluntarily participated. Participants viewed four videotaped scenes in which a patient is assessed by a paramedic. The first three scenes represented severe, intermediate, and no/mild alteration in level of consciousness (LOC). The findings in the fourth scene were identical to the first, allowing determination of intrarater reliability. The Kappa statistic was used to determine interrater reliability; the reliability coefficient determined intrarater reliability. Kappa was significant (p < 0.0001) for severe (kappa = 0.48), intermediate (kappa = 0.34), and no/mild (kappa = 0.85) conditions. Intrarater reliability (r1,2) for emergency physicians was 0.66 (p < 0.01) and for paramedics was 0.63 (p < 0.01). The GCS shows statistically significant reliability (i.e., significant agreement) between emergency physicians and emergency medical technician-paramedics. It also has a significant level of intrarater reliability.

Intravenous adenosine in the prehospital treatment of paroxysmal supraventricular tachycardia.

STUDY OBJECTIVE: To determine the clinical efficacy and safety of IV adenosine administration in the field for the treatment of paroxysmal supraventricular tachycardia (PSVT). DESIGN: Prospective, consecutive case series. SETTING: An urban emergency medical services system. PARTICIPANTS: Thirty-seven adult patients in whom paramedics made the diagnosis of PSVT. INTERVENTIONS: Six milligrams of adenosine was administered by rapid IV bolus. If there was no effect within two minutes, a 12-mg bolus was given. This dose was repeated once if necessary. If there still was no effect, the medical command physician was contacted for further management. MEASUREMENTS: Vital signs, symptoms, and a single-channel ECG were recorded before, during, and after the administration of adenosine. RESULTS: On review of the ECG tracings, 26 patients (70%) were in PSVT. Eleven had rhythms other than PSVT on review, including five with atrial fibrillation, four with sinus tachycardia, and two with ventricular tachycardia. Of the 26 patients with PSVT, 23 (88%) converted to sinus rhythm after adenosine administration. Eleven patients were hypotensive at presentation. Seven of these were in PSVT and became hemodynamically stable on conversion with adenosine. The four hypotensive patients with rhythms other than PSVT (two with atrial fibrillation and two with ventricular tachycardia) had no change in blood pressure after adenosine administration. Nine patients were subsequently found to have wide-complex tachycardia. None of these patients suffered hemodynamic compromise after adenosine administration, and side effects were infrequent, mild, and transient. CONCLUSION: Adenosine appears to be effective and safe for the pre-hospital treatment of PSVT.

Oral narcotic analgesics. Choosing the most appropriate agent for acute pain.

Narcotic analgesics are the most effective oral agents available for treatment of acute pain. A familiarity with the salient characteristics of the various agents enables physicians to choose the most effective one for use in the outpatient setting.

Hydrocodone versus codeine in acute musculoskeletal pain.

STUDY OBJECTIVES: To evaluate the efficacy and prevalence of side effects of hydrocodone versus codeine in acute pain syndromes. TYPE OF PARTICIPANTS/SETTING: Sixty-two consecutive adult emergency department patients 18 to 70 years old with acute musculoskeletal pain. Patients using other analgesics or having any contraindication to opioid therapy were excluded. In addition, 12 patients were excluded because of insufficient data or study dropout. DESIGN/INTERVENTIONS: In a randomized, double-blind prospective manner, patients received either 5 mg hydrocodone with 500 mg acetaminophen or 30 mg codeine with 500 mg acetaminophen to take on discharge from the ED and every four hours thereafter as needed for pain. MEASUREMENTS: Pain intensity was evaluated by a visual analog scale at zero, one, two, four, eight, 24, and 48 hours. Specific side effects were sought, along with the number of patients reporting inadequate analgesia. MAIN RESULTS: Data were obtained on 50 subjects (25 per group). Mean and median pain scores did not differ significantly at time zero (x vs y, 6.03 vs 5.99 and 6.8 vs 6.1, respectively) or subsequent intervals. Side effects were noted in eight hydrocodone/acetaminophen and 18 codeine/acetaminophen patients (P = .005). No significant differences in gastrointestinal side effects were reported; however, less nausea or vomiting was reported in the hydrocodone group (P = .23). Central nervous system side effects (sedation or lightheadedness) were reported in six hydrocodone/acetaminophen patients compared with 16 codeine/acetaminophen patients (P less than .005). In addition, no hydrocodone/acetaminophen patients reported inadequate analgesia compared with six codeine/acetaminophen patients (P less than .05). CONCLUSION: Although pain scores were not significantly different, hydrocodone may be a more effective analgesic than codeine in acute musculoskeletal pain, as demonstrated by significantly fewer treatment failures. Central nervous system side effects are less common with hydrocodone than with codeine.

Treatment of subungual hematomas with nail trephination: a prospective study.

Subungual hematoma is a commonly encountered problem in the emergency department. We designed a prospective, observational study to determine if treatment of simple subungual hematomas (SUH) by nail trephination alone is without cosmetic or infectious complications. Over a 2-year study period, 48 patients met inclusion criteria. Radiographs of all digits were taken to detect distal phalangeal fracture and SUH size was measured. Nail trephination was performed using electrocautery, and all patients reported relief of pain after the procedure. Follow-up was achieved in 45 of 48 patients with a total of 47 SUH. Average follow-up period was 10.3 +/- 4.3 months. By patient history, average time for the nail to grow back was 4.0 +/- 2.6 months. No complications of infection, osteomyelitis, or major nail deformities occurred in any patients treated by nail trephination, regardless of SUH size or presence of fracture. In simple SUH, regardless of size, nail removal with suture repair of the nail bed, as suggested in previous studies, is unnecessary.

A randomized, controlled trial of the use of music during laceration repair.

STUDY OBJECTIVES: To determine whether music significantly reduces the pain and anxiety associated with laceration repair in the emergency department. PARTICIPANTS AND SETTING: Adult patients presenting to the ED at an urban teaching hospital for laceration repair. Exclusion criteria included patients less than 18 years old, having received analgesics, with suspected alcohol or substance intoxication, and in whom laceration repair was complicated by treatment of a more serious medical condition. DESIGN AND INTERVENTIONS: This was a randomized, controlled trial. After giving informed consent, patients were randomly assigned to receive standard laceration repair without music (control) or standard laceration repair with music. Patients assigned to the music group chose an audio tape from 50 available styles and artists. Patients received the music through a headset, and they controlled the volume. Intradermal lidocaine was used in all patients. Data were collected on heart rate, blood pressure, and respirations just before and immediately after wound repair. Psychological variables included the state subscale of the Spielberger State Trait Anxiety Inventory (STAI), a visual analog pain scale rating, and a brief questionnaire. STAI and pain scale ratings were analyzed with Wilcoxon's rank-sum test with an alpha error of .05. RESULTS: Thirty-eight patients (19 per group) completed the protocol. Pain scores were significantly (P less than .05) lower in the music group (mean, 2.09) than in controls (mean, 3.31). Anxiety after the procedure was reduced in both groups, but STAI reduction scores were not significantly different between groups (music, 17.7; control, 18.5). Seventeen of 19 patients (89%) rated music "very beneficial," and 100% said they would use music again. CONCLUSION: Music provides a safe, inexpensive, and effective adjunct for the management of pain in the ED but does not significantly affect anxiety.

Glucagon: prehospital therapy for hypoglycemia.

STUDY OBJECTIVE: This study evaluated the efficacy of glucagon for prehospital therapy of hypoglycemia in patients without IV access. DESIGN: Prospective clinical trial. SETTING: Prehospital in a busy, urban emergency medical services system. TYPE OF PARTICIPANTS: Fifty consecutive patients presenting with documented hypoglycemia (ChemStrip BG less than or equal to 80 mg/dL) and symptoms of decreased level of consciousness, syncope, or seizure were enrolled. MEASURES AND MAIN RESULTS: Data collected included pretreatment (ChemStrip BG) and post-treatment serum glucose (hospital assay) as well as assessment of level of consciousness by a quantitative measure, the Glasgow Coma Score, and by a qualitative scale (0 to 3). The mean pretreatment blood glucose of 33.2 +/- 23.3 mg/dL increased after treatment to 133.3 +/- 57.3 mg/dL. Qualitative level of consciousness increased from a mean of 1.26 +/- .96 to 2.42 +/- .94 and Glasgow Coma Score increased from a mean of 9.0 +/- 4.19 to 13.04 +/- 3.68. The mean time until response was 8.8 minutes in those who responded to both level of consciousness criteria 82% (41 of 50). Glucagon administered for hypoglycemia resulted in a glucose increase in 98% (49 of 50) with headache as the only side effect noted in 4% (two of 50) of patients (P less than .0001). CONCLUSION: Glucagon is safe and effective therapy for hypoglycemia in the prehospital setting.