scholarly journals Impact of hand dominance on effectiveness of chest compressions in a simulated setting: a randomised, crossover trial

2019 ◽  
Vol 16 ◽  
Author(s):  
Jamie Cross ◽  
Tommy Lam ◽  
Joel Arndell ◽  
John Quach ◽  
Buck Reed ◽  
...  

Aim External cardiac compressions (ECC) are a critical component in determining the effectiveness of cardiopulmonary resuscitation (CPR). Guidelines prior to the 2010 International Liaison Committee on Resuscitation directed rescuers to place the heel of the dominant hand directly on the chest when performing ECC, however current guidelines are silent on this issue. Existing research is inconsistent in findings, and heterogeneous in design and participants. The aims of this pilot study were to: 1) investigate the impact of hand dominance on effectiveness of ECC; and 2) generate outcome data to inform sample size calculations for a larger future study.Methods This study utilised a single blinded, prospective randomised crossover trial design. Each participant was allocated to a ‘dominant hand on chest’ (DHOC) or ‘non-dominant hand on chest’ (NDHOC) group. On a simulation manikin, participants in the DHOC group performed 3 minutes of ECC with dominant hand on the chest and non-dominant hand supporting, followed by a ‘rest and recovery’ period and then a second 3-minute period of ECC with the hand reversed such that the non-dominant hand was on the chest. The NDHOC group performed the same series of compressions but in reverse order. The primary outcome measure was effectiveness of ECC, determined by a percentage-based ‘CPR score’ (‘CS’). Secondary outcomes were compression depth, rate and release. The Wilcoxon rank-sum (Mann-Whitney) test was used due to the non-normal distribution of the data. Due to the crossover design, hierarchical linear regression was used to assess for a period or cross over effect. Results For the primary outcome of this study, we have found no significant difference in CS between DHOC and NDHOC (69.9% (SD=29.9) vs. 69.1% (SD=34.1); p=0.92), respectively. There were no differences in the secondary outcomes of compression rate and depth, though compression release was improved in the DHOC group (53% vs. 42%; p=0.02).ConclusionIn this randomised crossover study conducted in a simulation context there was no difference in ECC effectiveness measured by an overall effectiveness outcome according to placement of the dominant or non-dominant hand on the chest during compressions. A modest improvement in ECC release was seen in the dominant hand on chest group. While the study was underpowered, the results support an approach involving rescuers placing whichever hand they are most comfortable with on the chest irrespective of handedness.

2021 ◽  
pp. 1-10
Author(s):  
Z.B. Puthattayil ◽  
G.P. Moore ◽  
K. Tang ◽  
N. Huneault-Purney ◽  
S.L. Lawrence

BACKGROUND: There is no consensus on how to wean infants from Nasal Continuous Positive Airway Pressure (NCPAP). We hypothesized that ceasing NCPAP abruptly would decrease the duration required, compared with a gradual wean. METHODS: This retrospective chart review included preterm infants requiring NCPAP for over 48 hours. Cohort1 weaned NCPAP by cycling on and off, while cohort 2 ceased NCPAP abruptly. The primary outcome was total days on NCPAP. Secondary outcomes included rate of bronchopulmonary dysplasia, weight gain, duration of hospital stay, and compliance with the use of stability criteria. RESULTS: 81 infants met inclusion criteria in cohort one, and 89 in cohort two. Median days on NCPAP were 17.0 and 11.0 days, respectively, not significant. There was no significant difference in secondary outcomes. CONCLUSIONS: There was no significant association between the two NCPAP weaning protocols and the outcomes studied.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Åsa Kettis ◽  
Hanna Fagerlind ◽  
Jan-Erik Frödin ◽  
Bengt Glimelius ◽  
Lena Ring

Abstract Background Effective patient-physician communication can improve patient understanding, agreement on treatment and adherence. This may, in turn, impact on clinical outcomes and patient quality of life (QoL). One way to improve communication is by using patient-reported outcome measures (PROMs). Heretofore, studies of the impact of using PROMs in clinical practice have mostly evaluated the use of standardized PROMs. However, there is reason to believe that individualized instruments may be more appropriate for this purpose. The aim of this study is to compare the effectiveness of the standardized QoL-instrument, the European Organization for Research and Treatment of Cancer Quality of Life C-30 (EORTC-QOL-C30) and the individualized QoL instrument, the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting (SEIQoL-DW), in clinical practice. Methods In a prospective, open-label, controlled intervention study at two hospital out-patient clinics, 390 patients with gastrointestinal cancer were randomly assigned either to complete the EORTC-QOL-C30 or the SEIQoL-DW immediately before the consultation, with their responses being shared with their physician. This was repeated in 3–5 consultations over a period of 4–6 months. The primary outcome measure was patients’ health-related QoL, as measured by FACIT-G. Patients’ satisfaction with the consultation and survival were secondary outcomes. Results There was no significant difference between the groups with regard to study outcomes. Neither intervention instrument resulted in any significant changes in health-related QoL, or in any of the secondary outcomes, over time. This may reflect either a genuine lack of effect or sub-optimization of the intervention. Since there was no comparison to standard care an effect in terms of lack of deterioration over time cannot be excluded. Conclusions Future studies should focus on the implementation process, including the training of physicians to use the instruments and their motivation for doing so. The effects of situational use of standardized or individualized instruments should also be explored. The effectiveness of the different approaches may depend on contextual factors including physician and patient preferences.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S799-S800
Author(s):  
Nerea Irusta ◽  
Ana Vega ◽  
Yoichiro Natori ◽  
Lilian M Abbo ◽  
Lilian M Abbo ◽  
...  

Abstract Background In-vitro studies have shown synergistic bactericidal activity with daptomycin (DAP) plus β-lactam antimicrobials against vancomycin resistant enterococci (VRE). There is a paucity of data regarding clinical outcomes with this combination in VRE bloodstream infections (BSI). The purpose of this study was to assess the efficacy of DAP plus a β-lactam with in-vitro activity vs. other therapies for treatment of VRE BSI. Methods IRB-approved, single-center, retrospective study of patients with VRE BSI from 01/2018-09/2019. Patients were excluded if < 18 years old, pregnant, or incarcerated. The primary outcome was time-to-microbiological clearance. Secondary outcomes included infection-related mortality, 30-day all-cause mortality, and incidence of recurrent BSI within 30 days of index culture. Targeted DAP doses were ≥ 8mg/kg and based on MIC. Factors associated with significance for outcomes, via univariate analysis, were evaluated with multivariable logistic regression (MLR), removed in a backward-step approach. Results A total of 85 patients were included, 23 of which received DAP plus a β-lactam. The comparator arm included linezolid or DAP monotherapy. Patients with combination therapy had significantly higher Charlson Comorbidity Index (CCI) (p=0.013) and numerically higher Pitt Bacteremia scores (PBS) (p=0.087) (Table 1). There was no difference seen in the primary outcome (Table 2). Secondary outcomes are provided in Table 2. The presence of polymicrobial infection and higher PBS were significantly associated with infection-related mortality (p=0.008 and p=0.005, respectively) by MLR. A Mann Whitney U test indicated that presence of infection-related mortality was greater for patients with higher MICS (U=20.5, p=0.06). The presence of an underlying source may be related to recurrence of BSI (p=0.075). Table 1: Patient Characteristics Table 2. Primary and Secondary Outcomes Conclusion We did not find a significant difference in time-to-microbiological clearance, although patients treated with DAP and a β-lactam had higher CCI and PBS. These results are limited by retrospective design, small sample size, and potential selection bias. Prospective randomized studies are needed to further validate these findings. Disclosures All Authors: No reported disclosures


2020 ◽  
Vol 47 (12) ◽  
pp. 865-872 ◽  
Author(s):  
Natalie E. Rintoul ◽  
Roberta L. Keller ◽  
William F. Walsh ◽  
Pamela K. Burrows ◽  
Elizabeth A. Thom ◽  
...  

<b><i>Introduction:</i></b> The Management of Myelomeningocele Study was a multicenter randomized trial to compare prenatal and standard postnatal repair of myelomeningocele (MMC). Neonatal outcome data for 158 of the 183 randomized women were published in <i>The New England Journal of Medicine</i> in 2011. <b><i>Objective:</i></b> Neonatal outcomes for the complete trial cohort (<i>N</i> = 183) are presented outlining the similarities with the original report and describing the impact of gestational age as a mediator. <b><i>Methods:</i></b> Gestational age, neonatal characteristics at delivery, and outcomes including common complications of prematurity were assessed. <b><i>Results:</i></b> Analysis of the complete cohort confirmed the initial findings that prenatal surgery was associated with an increased risk for earlier gestational age at birth. Delivery occurred before 30 weeks of gestation in 11% of neonates that had fetal MMC repair. Adverse pulmonary sequelae were rare in the prenatal surgery group despite an increased rate of oligohydramnios. There was no significant difference in other complications of prematurity including patent ductus arteriosus, sepsis, necrotizing enterocolitis, periventricular leukomalacia, and intraventricular hemorrhage. <b><i>Conclusion:</i></b> The benefits of prenatal surgery outweigh the complications of prematurity.


2009 ◽  
Vol 36 (9) ◽  
pp. 1991-1999 ◽  
Author(s):  
ROY D. ALTMAN ◽  
RENÉE-LILIANE DREISER ◽  
CHESTER L. FISHER ◽  
WALTER F. CHASE ◽  
DONATUS S. DREHER ◽  
...  

Objective.To measure the efficacy and safety of diclofenac sodium gel in patients with primary hand osteoarthritis (OA).Methods.In a randomized, double-blind, placebo-controlled trial, men and women aged ≥ 40 years diagnosed with primary OA in the dominant hand were randomly assigned to self-apply topical 1% diclofenac sodium gel (Voltaren® Gel) (n = 198) or vehicle (n = 187) to both hands 4 times daily for 8 weeks. Primary outcome measures included OA pain intensity (100-mm visual analog scale), total Australian/Canadian Osteoarthritis Hand Index (AUSCAN) score, and global rating of disease activity at 4 and 6 weeks. Secondary outcomes included onset of efficacy in Weeks 1 and 2, durability of efficacy at 8 weeks, measures of disease activity in the dominant hand, pain intensity in the non-dominant hand, AUSCAN subindices, end of study rating of efficacy, and Osteoarthritis Research Society International response criteria.Results.Diclofenac sodium gel decreased pain intensity scores by 42%–45%, total AUSCAN scores by 35%–40%, and global rating of disease by 36%–40%. Significant differences favoring diclofenac sodium gel over vehicle were observed at Week 4 for pain intensity and AUSCAN, with a trend for global rating of disease activity. At Week 6, diclofenac sodium gel treatment significantly improved each primary outcome measure compared with vehicle. Secondary outcomes generally supported the primary outcomes. The most common treatment-related adverse event (AE) was application-site paresthesia. Most AE were mild. No cardiac events, gastrointestinal bleeding, or ulcers were reported.Conclusion.Topical diclofenac sodium gel was generally well tolerated and effective in primary hand OA. (NCT ID: NCT00171665)


2020 ◽  
Author(s):  
Pinping Zhou ◽  
Chao Zhang ◽  
Guijin Huang ◽  
Yuan Hu ◽  
Wenzhu Ma ◽  
...  

Abstract Background: Dental procedures under general anesthesia (DGA) was found to improve the oral health-related quality of children's life. However, some parents and pediatricians expressed concern about the neurotoxicity of general anesthesia. The purpose of this trial was to investigate whether DGA in children has an adverse effect on neurodevelopment.Methods: In this prospective, assessor-masked, controlled, equivalence trial, we recruited 340 children younger than 7 years who were undergoing caries treatment between Feb 1, 2019, and Aug 31, 2019, without factors affecting neurodevelopment. They received either sevoflurane-based general anesthesia or awake-local anesthesia. The Wechsler Preschool and Primary Scale of Intelligence-Fourth Edition was used to evaluate the neurodevelopment of children at six months after surgery, and the Full-Scale IQ (FSIQ) was selected as the primary outcome. Predefine the 95% CI of a difference in means within five (1/3 SD) as the equivalence margin.Results: The outcome data were obtained from 129 children in the general anesthesia group and 144 in the local anesthesia group. The median length of general anesthesia was 130 min (IQR 110 – 160). There was equivalence in means of FSIQ score between the general anesthesia group and the local anesthesia group (local minus general anesthesia 0.46, 95% CI -2.35 to 1.61). There was no significant difference in FSIQ scores between different age groups and different anesthesia durations. Only the mother's education could affect the primary outcome.Conclusions: In this trial, prolonged DGA with a sevoflurane-only anesthetic in preschool children, does not adversely affect neurodevelopment at six months after surgery compared with awake-local anesthesia. Trial registration: Chinese Clinical Trial Registry, ChiCTR1800015216. Registered Mar 15 2018, http://www.chictr.org.cn/showproj.aspx?proj=24830.


2018 ◽  
Vol 36 (03) ◽  
pp. 277-284 ◽  
Author(s):  
M. Pallister ◽  
J. Ballas ◽  
J. Kohn ◽  
C. S. Eppes ◽  
M. Belfort ◽  
...  

Objective To evaluate the impact of a standardized surgical technique for primary cesarean deliveries (CDs) on operative time and surgical morbidity. Materials and Methods Two-year retrospective chart review of primary CD performed around the implementation of a standardized CD surgical technique. The primary outcome was total operative time (TOT). Secondary outcomes included incision-to-delivery time (ITDT), surgical site infection, blood loss, and maternal and fetal injuries. Results When comparing pre- versus postimplementation surgical times, there was no significant difference in TOT (76.5 vs. 75.9 minutes, respectively; p = 0.42) or ITDT (9.8 vs. 8.8 minutes, respectively; p = 0.06) when the entire cohort was analyzed. Subgroup analysis of CD performed early versus late in an academic year among the pre- and postimplementation groups showed no significant difference in TOT (79.3 early vs. 73.8 minutes late; p = 0.10) or ITDT (10.8 early vs. 8.8 minutes late; p = 0.06) within the preimplementation group. In the postimplementation group, however, there was significant decrease in TOT (80.5 early vs. 71.3 minutes late; p = 0.02) and ITDT (10.6 early vs. 6.8 minutes late; p < 0.01). Secondary outcomes were similar for both groups. Conclusion A standardized surgical technique combined with surgical experience can decrease TOT and ITDT in primary CD without increasing maternal morbidity.


Author(s):  
Labib M. Ghulmiyyah ◽  
Alaa El-Husheimi ◽  
Ihab M. Usta ◽  
Cristina Colon-Aponte ◽  
Ghina Ghazeeri ◽  
...  

Objective This study aimed to compare the effectiveness of sustained uterine compression versus uterine massage in reducing blood loos after a vaginal delivery. Study Design This was a prospective randomized trial conducted at the American University of Beirut Medical Center (AUBMC) between October 2015 and October 2017. Inclusion criteria were women with a singleton pregnancy at ≥36 weeks of gestation, with less than three previous deliveries, who were candidates for vaginal delivery. Participants were randomized into two groups, a sustained uterine compression group (group 1) and a uterine massage group (group 2). Incidence of postpartum hemorrhage (blood loss of ≥500 mL) was the primary outcome. We assumed that the incidence of postpartum hemorrhage at our institution is similar to previously published studies. A total of 545 women were required in each arm to detect a reduction from 9.6 to 4.8% in the primary outcome (50% reduction) with a one-sided α of 0.05 and a power of 80%. Factoring in a 10% dropout rate. Secondary outcomes were admission to intensive care unit (ICU), postpartum complications, drop in hemoglobin, duration of hospital stay, maternal pain, use of uterotonics, or of surgical procedure for postpartum hemorrhage. Results A total of 550 pregnant women were recruited, 273 in group 1 and 277 in group 2. There was no statistically significant difference in baseline characteristics between the two groups. Type of anesthesia, rate of episiotomy, lacerations, and mean birth weight were also equal between the groups. Incidence of the primary outcome was not different between the two groups (group 1: 15.5%, group 2: 15.4%; p = 0.98). There was no statistically significant difference in any of the secondary outcomes between the two groups, including drop in hemoglobin (p = 0.79). Conclusion There was no difference in blood loss between sustained uterine compression and uterine massage after vaginal delivery. Key Points


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S363-S364
Author(s):  
Sana Mohayya ◽  
Navaneeth Narayanan ◽  
Daniel Cimilluca ◽  
Parth Vaidya ◽  
Alexander Malanowski ◽  
...  

Abstract Background In an effort to minimize complications associated with over-utilization of antibiotics, many antimicrobial stewardship programs have incorporated an antibiotic time out (ATO). Despite the increasing adoption of the ATO, limited data are available to support its effectiveness. This study was designed to assess the impact of an automated ATO integrated into the electronic medical record (EMR) on the rate of antibiotic modification in patients receiving broad-spectrum antibiotic(s) for Gram-negative bacteremia (GNB). Methods This was a single-center retrospective cohort study of inpatients from January 2017 to June 2018 conducted at a large academic medical center. ATO was implemented on October 31, 2017. Adult patients with GNB who received at least 72 hours of a systemic antibiotic were included. Patients with neutropenia or polymicrobial infections were excluded. The primary outcome was the proportion of patients who received a modification of therapy within 24 hours of final culture results. Secondary outcomes included modification at any point in therapy, time to modification of therapy, time to de-escalation, and days of therapy of broad-spectrum antibiotics. Results There was a total of 88 patients who met inclusion criteria, 37 patients pre-ATO and 51 patients post-ATO. The primary outcome of modification of therapy within 24 hours of final culture results was not significantly different for patients in the pre-ATO and post-ATO groups (19% vs. 20%, P = 0.94, respectively). The secondary outcome of modification of therapy at any point in therapy was not significantly different between the two groups (62% vs. 66%, P = 0.67). Of the 47 patients who received a modification of therapy, the mean time to modification was significantly shorter in the post-ATO group (52.8 hours vs. 45.26 hours, P < 0.05,). All other secondary outcomes were not significantly different between study groups. Conclusion The ATO alert was not associated with a higher rate of antibiotic modification within 24 hours of culture results in patients with GNB, although there was a significant reduction in the time to antibiotic modification. Further efforts are needed to improve the time to modification and optimize antibiotic prescribing practices. Disclosures All authors: No reported disclosures.


2016 ◽  
Vol 98 (6) ◽  
pp. 358-366 ◽  
Author(s):  
k He ◽  
H Zhao ◽  
HC Zhou

Introduction Shivering is one of the most frequent complications of operation during the postanaesthesia period. Ondansetron has been proved to be valid in preventing postanaesthesia shivering (PAS) in several studies. However, its efficiency and safety are still disputable. We therefore performed an updated meta-analysis of randomised controlled trials (RCTs) for evaluation and to clarify this issue. Methods A literature search using the PubMed, Embase™ and Cochrane Library databases was performed (from inception to January 2015). RCTs that evaluated the efficiency and safety of ondansetron in the prevention of PAS were included in the meta-analysis. The primary outcome measure was incidence of PAS, and secondary outcomes included subgroup analysis and the side effects of ondansetron. Results A total of 8 RCTs containing 905 subjects were identified as suitable for this review. Compared with placebo, ondansetron was associated with a significant reduction of PAS (relative risk [RR]: 0.33, 95% confidence interval [CI]: 0.19–0.58, p=0.0001) while no difference was detected between ondansetron and pethidine (RR: 0.89, 95% CI: 0.41–1.94, p=0.78). There was no significant difference between ondansetron and placebo or pethidine in terms of risk of bradycardia but ondansetron was associated with a lower risk of hypotension (RR: 0.26, 95% CI: 0.08–0.79, p=0.020) than placebo. There was no difference in hypotension when ondansetron was compared with pethidine. Conclusions Ondansetron can prevent PAS effectively and reduce the risk of hypotension.


Sign in / Sign up

Export Citation Format

Share Document