Orhan Cinar

Efficacy of high-flow oxygen therapy in all types of headache: a prospective, randomized, placebo-controlled trial ☆

OBJECTIVE We aimed to assess the efficacy of oxygen inhalation therapy in emergency department (ED) patients presenting with all types of headache. METHOD We performed a prospective, randomized, double-blinded, placebo-controlled trial of patients presenting to the ED with a chief complaint of headache. The patients were randomized to receive either 100% oxygen via nonrebreather mask at 15 L/min or the placebo treatment of room air via nonrebreather mask for 15 minutes in total. We recorded pain scores at 0, 15, 30, and 60 minutes using the visual analog scale. At 30 minutes, the patients were assessed for the need for analgesic medication. Patient headache type was classified by the treating emergency physician using standardized diagnostic criteria. RESULTS A total of 204 patients agreed to participate in the study and were randomized to the oxygen (102 patients) and placebo (102 patients) groups. Patient headache types included tension (47%), migraine (27%), undifferentiated (25%), and cluster (1%). Patients who received oxygen therapy reported significant improvement in visual analog scale scores at all points when compared with placebo: 22 mm vs 11 mm at 15 minutes (P < .001), 29 mm vs 13 mm at 30 minutes (P < .001), and 55 mm vs 45 mm at 60 minutes (P < .001). When questioned at 30 minutes, 72% of patients in the oxygen group and 86% of patients in the placebo group requested analgesic medication (P = .005). CONCLUSION In addition to its role in the treatment of cluster headache, high-flow oxygen therapy may provide an effective treatment of all types of headaches in the ED setting.

Can mainstream end-tidal carbon dioxide measurement accurately predict the arterial carbon dioxide level of patients with acute dyspnea in ED.

OBJECTIVE This study was designed to determine whether the mainstream end-tidal carbon dioxide (ETCO2) measurement can accurately predict the partial arterial carbon dioxide (Paco2) level of patients presented to emergency department (ED) with acute dyspnea. METHODS This prospective, observational study was conducted at a university hospital ED, which serves more than 110 000 patients annually. Nonintubated adult patients presented with acute dyspnea who required arterial blood gas analysis were recruited in the study for a 6-month period between January and July 2010. Patients were asked to breathe through an airway adapter attached to the mainstream capnometer. Arterial blood gas samples were obtained simultaneously. RESULTS We included 162 patients during the study period. The mean ETCO2 level was 39.47 ± 10.84 mm Hg (minimum, 19 mm Hg; maximum, 82 mm Hg), and mean Paco2 level was 38.95 ± 12.27 mm Hg (minimum, 16 mm Hg; maximum, 94 mm Hg). There was a positive, strong, statistically significant correlation between ETCO2 and Paco2 (r = 0.911, P < .001). The Bland-Altman plot shows the mean bias ± SD between ETCO2 and Paco2 as 0.5 ± 5 mm Hg (95% confidence interval, -1.3165-0.2680) and the limits of agreement as -10.5 and +9.5 mm Hg. Eighty percent (n = 129) of the ETCO2 measurements were between the range of ±5 mm Hg. CONCLUSION Mainstream ETCO2 measurement accurately predicts the arterial Paco2 of patients presented to ED with acute dyspnea. Further studies comparing mainstream and sidestream methods in these patients are required.

Evaluation of mid-regional pro-atrial natriuretic peptide, procalcitonin, and mid-regional pro-adrenomedullin for the diagnosis and risk stratification of dyspneic ED patients☆☆☆★★★

OBJECTIVE The aim of this study was to evaluate the diagnostic and the prognostic value of a laboratory panel consisting of mid-regional pro-atrial natriuretic peptide (MR-proANP), procalcitonin (PCT), and mid-regional pro-adrenomedullin (MR-proADM) for patients presenting to the emergency department (ED) with acute dyspnea. METHODS We prospectively enrolled ED patients who presented with a chief complaint of dyspnea and who had an uncertain diagnosis after physician evaluation. Final primary diagnosis of the cause of shortness of breath was confirmed through additional testing per physician discretion. We recorded inpatient admission and 30-day mortality rates. RESULTS One hundred fifty-four patients were enrolled in the study. Congestive heart failure exacerbation was the final primary diagnosis in 42.2% of patients, while infectious etiology was diagnosed in 33.1% of patients. For the diagnosis of congestive heart failure exacerbation, MR-proANP had a sensitivity of 92.7% and specificity of 36.8%, with a negative likelihood ratio (LR-) of 0.16 and a positive likelihood ratio (LR+) of 1.44 (cut-off value: 120 pmol/L). For the diagnosis of an infectious etiology, PCT had a 96.5% specificity and 48.8% sensitivity (LR-: 0.58, LR+: 13.8, cutoff value: 0.25 ng/mL). As a prognostic indicator, MR-proADM demonstrated similar values: odds ratio for 30-day mortality was 8.5 (95% CI, 2.5-28.5, cutoff value: 1.5 nmol/L) and the area under the receiver operating characteristic curve in predicting mortality was 0.81 (95% CI, 0.71-0.91). CONCLUSION The good negative LR- of MR-proANP and the good positive LR+ of PCT may suggest a role for these markers in the early diagnosis of ED patients with dyspnea. Furthermore, MR-proADM may assist in risk stratification and prognosis in these patients..

Comparison of ketamine–low-dose midozolam with midazolam-fentanyl for orthopedic emergencies: a double-blind randomized trial

OBJECTIVE Most of the fractures and dislocations are reduced in the emergency setting. Many drugs are available for procedural sedation and analgesia in the emergency department (ED); however, the adverse effects are still a common problem. The aim of our study was to compare the 2 drug combinations. METHOD We performed a prospective, randomized, double-blinded, placebo-controlled trial of patients presenting to the ED after a traumatic event and required urgent reduction either for a fracture or dislocation. Patients were randomized to midazolam-fentanyl (MF) group or ketamine-low-dose midazolam (KM) group. Hypoxia, duration of hypoxia, need for oxygen, time to onset of sedation, recovery time, pain scores during reduction, and sedation depth were set as primary outcome measures and were recorded. RESULTS A total of 498 patients who presented to ED with extremity injury and required closed reduction were assessed; 130 of them were approached for eligibility and 69 patients were excluded. The remaining 61 patients were randomized to either KM group (n = 31) or MF group (n = 30). Hypoxia and duration of hypoxia were significantly lower in the KM group compared with the MF group. Patients in the KM group reported significantly lower pain scores during reduction; however, adverse effects were higher compared with MF group. CONCLUSION Both drug combinations can be effectively used for procedural sedation and analgesia; however, with lower risk for hypoxia and lower pain scores, KM combination stands as a reasonable choice for orthopedic interventions in the emergency unit.

Disparity Between Mainstream And Sidestream End Tidal Carbon Dioxide Values And Arterial Carbon Dioxide Levels

BACKGROUND: Measuring and monitoring end-tidal carbon dioxide (PETCO2) is an important aspect of caring for critically ill patients. The 2 methods used for PETCO2 measurement are the mainstream and sidestream methods. OBJECTIVE: To assess the agreement between PETCO2 measurements performed by mainstream and sidestream methods with the PaCO2 values. METHODS: This was a prospective observational study. A total of 114 subjects were enrolled in the study. PETCO2 measurements using mainstream and sidestream methods were performed simultaneously with the arterial blood sampling in subjects who were observed in the emergency department and required arterial blood gas analysis. Agreement between the PETCO2 measurements and the PaCO2 values obtained from arterial blood gas analysis were evaluated using the Bland-Altman method. RESULTS: Sixty subjects (52.6%) were female, and the mean age was 60.9 years (95% CI 58.3–63.6). The mean PaCO2 was 35.16 mm Hg (95% CI 33.81–36.51), the mainstream PETCO2 was 22.11 (95% CI 21.05–23.18), and the sidestream PETCO2 was 25.48 (95% CI 24.22–26.75). Bland-Altman analysis showed an average difference between mainstream PETCO2 and PaCO2 values of 13 mm Hg (95% limits of agreement −0.6 to 25.5) and moderate correlation (r = 0.55, P < .001). The average difference between the sidestream PETCO2 and PaCO2 values was 9.7 mm Hg (95% limits of agreement −5.4 to 24.7) and poor correlation (r = 0.41, P < .001). CONCLUSIONS: PETCO2 values obtained by mainstream and sidestream methods were found to be significantly lower than the PaCO2 values. There was essentially no agreement between the measurements obtained by 2 different methods and the PaCO2 values.

Geriatric Patients May Not Experience Increased Risk of Oligoanalgesia in the Emergency Department

STUDY OBJECTIVE The aim of this study is to compare the pain management practices in geriatric patients in the emergency department (ED) with that in other adult ED patients to determine whether these patients face increased risk of oligoanalgesia. METHODS This study was a prospective analysis of a convenience sample of patients presenting to an urban academic tertiary care hospital ED from 2000 through 2010. We compared patients aged 65 years and older (geriatric) with adults younger than 65 years and evaluated analgesic administration rates, opioid administration and dosing, and pain and satisfaction scores (0 to 10 scale). RESULTS A total of 15,387 patients presented to the ED during the 10-year study period and agreed to participate in the study; 1,169 patients were geriatric (7.6%). Geriatric patients had a mean age of 75.0 years (SD 7.2 years), whereas mean age of the 14,218 nongeriatric patients was 35.5 years (SD 12.2 years). Geriatric patients reported less pain at presentation (6.2 versus 6.9). After adjusting for presentation pain scores, geriatric patients were not less likely to receive an analgesic during the ED visit (odds ratio 0.90; 95% confidence interval 0.78 to 1.05) or less likely to receive an opioid (odds ratio 1.01; 95% confidence interval 0.87 to 1.18). Geriatric patients, on average, received lower doses of morphine (3.3 versus 4.2 mg) and had longer waiting times for their initial dose of an analgesic medication (65 versus 75 minutes). CONCLUSION Despite longer wait times for analgesia, geriatric and nongeriatric patients were similar in rates of analgesia and opioid administration for pain-related complaints. These findings contrast with previous studies reporting lower rates of analgesia administration among geriatric patients.

Comparison of GlideScope video laryngoscope and intubating laryngeal mask airway with direct laryngoscopy for endotracheal intubation.

The aim of this study was to determine whether GlideScope video laryngoscope (GVL) and intubating laryngeal mask airway (i-LMA) improve the intubation success rate and could be easily learned and performed by paramedic students when compared with the direct laryngoscopic (DL) method. The study was designed as a prospective randomized crossover trial that included 121 paramedic students. All participants were asked to intubate each Ambu Airway Management Trainer manikins after the lecture and demonstration. Successful intubation was defined as the passage of the tube through the vocal cord within 60 s. At the end of the study, a questionnaire survey was given to all participants about their preferences, and they were requested to define each method on an easy–difficult scale. Successful intubation was achieved by 95 students (78.5%) with DL, 112 students (92.6%) with i-LMA, and 111 students (91.7%) with GVL. Mean time of intubation was 25.06±14 s for DL, 22.32±12 s for i-LMA, and 22.63±10 s for GVL. Success rates of i-LMA and GVL were significantly higher compared with DL (P=0.005 and P=0.006, respectively). No significant difference was determined between i-LMA and GVL in terms of successful intubation (P>0.05). This study showed that GVL and i-LMA provided better intubation success rates and were easier for paramedic students when compared with the classic DL method.

Comparing the efficacy of intravenous tenoxicam, lornoxicam, and dexketoprofen trometamol for the treatment of renal colic

STUDY OBJECTIVE The aim of this study was to compare the efficacy and safety of 3 nonsteroidal anti-inflammatory drugs-intravenous tenoxicam, lornoxicam, and dexketoprofen trometamol-for the treatment of patients with renal colic. METHODS We conducted a prospective double-blind randomized trial of consecutive adult patients who presented to the emergency department with a chief complaint of acute flank pain and had a clinical diagnosis of suspected acute renal colic. Patients were randomly allocated to receive an intravenous bolus of tenoxicam, lornoxicam, or dexketoprofen trometamol in a blinded fashion. Primary outcome measure of the study was visual analog scale (VAS) score difference at 30 minutes. Secondary outcome measures were VAS scores at 5, 15, and 120 minutes as well as rescue analgesic need at 30 minutes and adverse events during the follow-up period. RESULTS A total of 445 patients were screened, and 123 patients were enrolled in the study. The mean age was 36 ± 10 years. The mean reduction in VAS pain scores at 30 minutes was 42 ± 26 mm for tenoxicam, 57 ± 23 mm for lornoxicam, and 52 ± 25 mm for dexketoprofen (P = .047). Lornoxicam demonstrated the fastest rate of VAS score reduction over the first 30 minutes. The mean reduction values in VAS pain scores at 5, 15, and 120 minutes were similar among the 3 groups. Rescue analgesics at 30 minutes were required by 16 patients (39%) receiving tenoxicam, 10 patients (24%) receiving lornoxicam, and 8 patients (19%) receiving dexketoprofen (P = .121). No serious adverse events were observed. CONCLUSIONS Intravenous tenoxicam, lornoxicam, and dexketoprofen are all effective in the treatment of renal colic, although lornoxicam appears to reduce VAS pain scores with the fastest rate in this comparison.

Acute aortic dissection with painless paraplegia: report of 2 cases

Acute aortic dissection is often a life-threatening event that usually presents as a sudden, severe, exquisitely painful, ripping sensation in the chest or back. There are a few reports of atypical findings or no pain in the literature. We report 2 patients with painless acute aortic dissection who presented to the emergency department (ED) with sudden onset paraplegia.

Communication skills training for emergency medicine residents.

Objective To determine the effects of a communication skills training program on emergency medicine residents and patient satisfaction. Materials and methods Twenty emergency medicine residents attended a 6-week psychoeducation program that was intended to improve their communication skills. The first three sessions of the psychoeducation program consisted of theoretical education on empathy and communication. Other sessions covered awareness, active communication, and empathic skills on a cognitive behavioral basis using discussion, role play, and homework within an interactive group. The effects of the program were assessed using a communication skills scale, empathy scale, and patient satisfaction survey and were reflected by the reduction in the number of undesirable events between doctors and patients in the emergency department. Results The mean communication skills score increased from 178.7±19 to 189.2±16 after training (P<0.02). Empathy score also increased from 29.5±9 to 30.7±8, but this difference was not statistically significant (P=0.1). The patient satisfaction survey of 576 patients demonstrated increased scores on confidence in the doctor (88.2±14.6–93.6±10.3; P<0.01); the doctors respect, kindness, and thoughtfulness (90.3±10.8–94.1±16.5; P<0.01); individualized attention (86.7±9.4–93.9±11.1; P<0.01); devotion of adequate time to listening (88.6±12.3–90.8±14.1; P=0.04); and counseling and information delivery (90.1±11.3–92.2±11.7; P=0.02). The number of undesirable events between doctors and patients decreased 75% from 12 to three. Conclusion Participation in a communication skills training program was associated with improved communication skills of emergency medicine residents, increased patient satisfaction, and decreased complaints.