Therapeutic hypothermia after cardiac arrest: A retrospective comparison of surface and endovascular cooling techniques

Objectives

Therapeutic hypothermia (32-34 °C) is recommended for comatose survivors of cardiac arrest; however, the optimal technique for cooling is unknown. We aimed to compare therapeutic hypothermia using either surface or endovascular techniques in terms of efficacy, complications and outcome.

Design

Retrospective cohort study.

Setting

Thirty-bed teaching hospital intensive care unit (ICU).

Patients

All patients (n = 83) undergoing therapeutic hypothermia following cardiac arrest over a 2.5-year period. The mean age was 61 ± 16 years; 88% of arrests occurred out of hospital, and 64% were ventricular fibrillation/tachycardia.

Interventions

Therapeutic hypothermia was initiated in the ICU using iced Hartmann's solution, followed by either surface (n = 41) or endovascular (n = 42) cooling; choice of technique was based upon endovascular device availability. The target temperature was 32-34 °C for 12-24 h, followed by rewarming at a rate of 0.25 °C h⁻¹.

Measurements and main results

Endovascular cooling provided a longer time within the target temperature range (p = 0.02), less temperature fluctuation (p = 0.003), better control during rewarming (0.04), and a lower 48-h temperature load (p = 0.008). Endovascular cooling also produced less cooling-associated complications in terms of both overcooling (p = 0.05) and failure to reach the target temperature (p = 0.04). After adjustment for known confounders, there were no differences in outcome between the groups in terms of ICU or hospital mortality, ventilator free days and neurological outcome.

Conclusion

Endovascular cooling provides better temperature management than surface cooling, as well as a more favorable complication profile. The equivalence in outcome suggested by this small study requires confirmation in a randomized trial.     

The effect of health visitors' postpartum home visit frequency on first-time mothers: cluster randomised trial

Background

Postpartum home visiting by nurses can benefit higher-risk families. Yet, little is known about the effects of universal services which provide care for all families including those at lowest risk (e.g. provision by health visitors-United Kingdom specialist community public health nurses).

Objective

It was to determine the effect of frequency of health visitors’ home visits on ‘low-risk’ first-time families’ outcomes to 8 weeks postpartum and 7 months follow-up.

Design

A cluster randomised controlled trial.

Setting

Within one health and social care managerial area in Northern Ireland.

Participants

First-time ‘low risk’ mothers who had given birth during 2002-2004 and were visited by a health visitor who had agreed to take part in the study, were invited to participate. In total, n = 39 health visitors were allocated to ‘intervention’ and n = 41 to ‘control’. Of n = 295 ‘low-risk’ first-time mothers who agreed to take part, n = 136 with intervention health visitors were offered six home visits 2-8 weeks postpartum and n = 159 within the control group were offered one planned visit.

Methods

Self-completed measures of parenting, maternal wellbeing and service use were gathered pre-intervention, 8 weeks and 7 months postpartum. The main outcome was the Edinburgh Postnatal Depression Scale (EPDS). At 8 weeks and 7 months postpartum, n = 129 and n = 115 intervention mothers, also n = 151 and n = 141 control mothers completed outcome measures.

Results

An intention to treat analysis was performed using multilevel modelling analysis which statistically controlled for pre-home visit outcomes, clinic attendance and antenatal contact. The intervention had no impact on most outcomes, however, it was associated with an increased EPDS score (after adjustment: 0.16, 2.36 95%CI) at 8 weeks (before accounting for outliers) but not at 7 months (−0.62,1.65 95%CI). Intervention mothers had higher service satisfaction (7.7, 21.28, 95%CI 8 weeks; 4.69, 22.71, 7 months) and were less likely to have used emergency medical services for their infants to 8 weeks (OR: 0.15, 0.85, 95%CI).

Conclusion

Weekly postpartum visits to ‘low-risk’ mothers had variable effects, therefore, practitioners and researchers should consider further development and application of effective, evidence based home visiting content.     

The effect of a physiotherapy education compared with a non-healthcare education on the attitudes and beliefs of students towards functioning in individuals with back pain: An observational, cross-sectional study

Objectives

To investigate the difference in attitudes: (1) between first and fourth year physiotherapy students towards functioning in individuals with back pain; and (2) between physiotherapy students and non-healthcare students towards functioning in individuals with back pain.

Design

Observational, cross-sectional study.

Setting

Glasgow Caledonian University, Scotland, UK.

Participants

First year physiotherapy (n = 61) and non-healthcare students (n = 61), and fourth year physiotherapy (n = 62) and non-healthcare students (n = 62).

Main outcomes

All participants completed the Health Care Providers’ Pain and Impairment Relationship Scale (range 15 to 105). This questionnaire measures attitudes towards functioning in individuals with back pain.

Results

Fourth year physiotherapy students had more positive attitudes towards functioning in individuals with back pain than first year physiotherapy students [57.4 vs 66.6 (mean difference −9.2, 95% confidence interval −12.2 to −6.1, P < 0.01)]. Similarly, fourth year non-healthcare students had more positive attitudes towards functioning in individuals with back pain compared with first year non-healthcare students [69.2 vs 65.3 (mean difference −3.9, 95% confidence interval −7.2 to −0.5, P = 0.03)]. Physiotherapy students had more positive attitudes than non-healthcare students in the first year [66.6 vs 69.2 (mean difference −2.6, 95% confidence interval −5.5 to 0.4, P = 0.08)] and the fourth year [57.4 vs 65.3 (mean difference −7.9, 95% confidence interval −11.4 to −4.4, P < 0.01)] of study.

Conclusion

These findings suggest that physiotherapy education brings about positive student attitudes towards functioning in individuals with back pain. This may be partly attributable to receiving a university degree education, but would appear to be further enhanced by specifically receiving a physiotherapy degree. This may facilitate students to become more evidence-based practitioners following qualification.     

A randomised controlled trial of two programmes of shoulder exercise following axillary node dissection for invasive breast cancer

Objective

To compare the incidence of treatment-related complications, including lymphoedema, after two programmes of shoulder mobilisation in women with invasive breast cancer when surgical treatment included axillary lymph node dissection.

Design

Randomised controlled trial.

Setting

Two secondary care National Health Service trusts.

Participants

One hundred and sixteen women (mean age 57 years, standard deviation 13.1 years) recruited from November 2003 to March 2006 (58 intervention group, 58 control group). Seven patients (6%) did not complete the study.

Intervention

Arm exercises and shoulder movement restricted to below shoulder level for the first 7 days after surgery. Controls commenced an exercise programme that incorporated exercises above shoulder level within 48 hours.

Outcome measures

All outcomes were recorded at baseline (pre-operatively) and at 1 year. The primary outcome was incidence of lymphoedema, defined by a limb volume difference of 200 ml or more compared with the contralateral arm. This outcome was measured using volume displacement. Secondary outcome measures included volume differences between the two limbs measured by actual volume displacement difference, wound drainage volumes, range of shoulder movement (manual goniometer), grip strength (hand-held dynamometer) and health-related quality of life (Shoulder Disability Questionnaire, Functional Assessment of Cancer Therapy - Breast).

Results

All statistical tests were two-sided. Data were analysed using intention-to-treat principles. The incidence of lymphoedema (200 ml or more) increased significantly in women who had undertaken a programme of early full shoulder mobilisation. Twenty-two women (19%) developed lymphoedema (200 ml or more) in their first postoperative year. There were significantly more women with lymphoedema in the early full shoulder mobilisation group (n = 16) compared with the delayed full shoulder mobilisation group (n = 6). The relative risk of developing lymphoedema after early mobilisation was 2.7 (95% confidence interval 1.1 to 6.3; P = 0.031). Limb volume differences were significantly higher in the early mobilisation group. This was apparent in differences in limb volume displacement (P = 0.004) and percentage difference between the two limbs (P = 0.007). There were no statistically significant differences in shoulder movement, grip strength or self-evaluated outcomes between the two groups at 1 year.

Conclusion

A programme of exercise that delays full shoulder mobilisation for 1 week is recommended after axillary node dissection for invasive breast cancer.     

Extra corporeal life support makes advanced radiologic examinations and cardiac interventions possible in patients with cardiac arrest

Objectives

Extra corporeal life support (ECLS) with a mobile system is an option in the treatment of cardiac arrest often of unknown reason. After commencing ECLS the search for a provoking origin may include advanced radiologic examinations before deciding further treatment.

Methods

Fifty-eight patients with circulatory arrest were treated with ECLS. In 15 cases the patient went through CT scans of the cerebrum, thorax and abdomen, pulmonary angiography, and or invasive cardiologic examinations. Two patients were transported in ambulance and helicopter on ECLS before the examinations.

Results

The underlying diagnosis in the 15 patients were: lung embolism (n = 6), accidental hypothermia (n = 2), myocardial infarction (n = 2), WPW syndrome (n = 1), sepsis (n = 1), disseminated intravascular coagulation (n = 2), high voltage accident (n = 1). Only in the last mentioned patient the CT scan was indicative of major brain damage, and further treatment was stopped. Five of the 15 examined patients survived. The diagnoses in the survivors were lung embolism (n = 2), myocardial infarction (n = 1), WPW syndrome (n = 1), and accidental hypothermia (n = 1). The results of the radiologic examinations had great influence on all treatments.

Conclusions

It is possible to make radiological examinations i.e., CT scans, pulmonary and coronary angiography in patients suffering heart arrest of unknown origin with the use of ECLS in order to improve patient treatment in this very high-risk population.     

Pulmonary rehabilitation for chronic obstructive pulmonary disease: a pilot study evaluating a once-weekly versus twice-weekly supervised programme

Objectives

To compare the effectiveness of a once-weekly supervised pulmonary rehabilitation programme with a standard twice-weekly format.

Design

Randomised trial of equivalency.

Setting

Pulmonary rehabilitation service of a primary care trust delivered at two physiotherapy outpatient departments.

Participants

Thirty patients with chronic obstructive pulmonary disease.

Outcome measures

Primary outcomes were the Incremental Shuttle Walking Test (ISWT), Endurance Shuttle Walking Test (ESWT) and St George's Respiratory Questionnaire (SGRQ), assessed at baseline and at completion of the supervised programme. Secondary outcomes were home-exercise activity, attendance levels and patient satisfaction with the programme.

Interventions

The once-weekly group (n = 15) received one supervised rehabilitation session per week, and the twice-weekly group (n = 15) received two sessions per week, both for 8 weeks, together with a home-exercise plan.

Results

After pulmonary rehabilitation, the groups showed similar improvements in exercise tolerance (median values: ISWT once-weekly 60 metres, twice-weekly 50 metres; ESWT once-weekly 226 seconds, twice-weekly 109 seconds). However, for health-related quality-of-life, the once-weekly group's score did not change (SGRQ 0), whereas an improvement was seen for the twice-weekly group (SGRQ 3.7). The number of home-exercise sessions and attendance levels were similar between the groups. Patient satisfaction with both formats was high and almost identical between the groups.

Conclusions

This pilot provides data to inform a larger study and shows that the methodology is feasible. The findings suggest that once-weekly supervision may be capable of producing equivalent improvements in exercise tolerance as a twice-weekly programme, but the health-related quality-of-life outcome appeared to be poorer for once-weekly supervision.     

Correlations of six related purine metabolites and diabetic nephropathy in Chinese type 2 diabetic patients

Objectives

The assessment of the clinical significance of adenosine, adenine, inosine, xanthine, hypoxanthine and uric acid concentrations in patients with type 2 diabetes mellitus (T2DM) and diabetic nephropathy (DN) for the detection of the relationship between purine metabolites and disease.

Design and methods

The study group consisted of 119 subjects which were divided into three groups: control (n = 31), type 2 diabetes without nephropathy (DM, n = 23) and with nephropathy (DN, n = 65). Levels of related metabolites were measured in plasma of all participants.

Results

There is a significant increase of levels of adenosine (P < 0.001), inosine (P < 0.001), xanthine (P = 0.012) and uric acid (P = 0.016) with DN compared to DM. The level of xanthine oxidase (reflected by the uric acid: xanthine) did not change.

Conclusion

The levels of adenosine, inosine, uric acid and xanthine may be useful for monitoring the progression of DM and evaluating the treatment.     

Continuous mechanical chest compression during in-hospital cardiopulmonary resuscitation of patients with pulseless electrical activity

Survival after in-hospital pulseless electrical activity (PEA) cardiac arrest is poor and has not changed during the last 10 years. Effective chest compressions may improve survival after PEA. We investigated whether a mechanical device (LUCAS™-CPR) can ensure chest compressions during cardiac arrest according to guidelines and without interruption during transport, diagnostic procedures and in the catheter laboratory.

Methods

We studied mechanical chest compression in 28 patients with PEA (pulmonary embolism (PE) n = 14; cardiogenic shock/acute myocardial infarction; n = 9; severe hyperkalemia; n = 2; sustained ventricular arrhythmias/electrical storm; n = 3) in a university hospital setting.

Results

During or immediately after CPR, 21 patients underwent coronary angiography and or pulmonary angiography. Successful return of a spontaneous circulation (ROSC) was achieved in 27 out of the 28 patients. Ten patients died within the first hour and three patients died within 24 h after CPR. A total of 14 patients survived and were discharged from hospital (13 without significant neurological deficit). Interestingly, six patients with PE did not have thrombolytic therapy due to contraindications. CT-angiography findings in these patients showed fragmentation of the thrombus suggesting thrombus breakdown as an additional effect of mechanical chest compressions. No patients exhibited any life-threatening device-related complications.

Conclusion

Continuous chest compression with an automatic mechanical device is feasible, safe, and might improve outcomes after in-hospital-resuscitation of PEA. Patients with PE may benefit from effective continuous chest compression, probably due to thrombus fragmentation and increased pulmonary artery blood flow.     

From ‘conductor’ to ‘second fiddle’: Older adult care recipients’ perspectives on transitions in family caring at hospital admission

Background

Family carers provide strong support for many older adults, often enabling older adults to remain at home. Little is known about the care recipients’ perspectives of the role and contributions of family carers, particularly when hospital admissions occur as part of end of life care.

Aim

This paper explores the meanings of family caring for care recipients by drawing on older adults’ perspectives about the impact of hospital admission on established family caring relationships.

Design

Exploratory semi-structured qualitative interviews. Key findings reported in this paper emerged from within the inductive research design.

Setting

Interviews were conducted in older adults’ place of residence in northwest England between June 2009 and July 2010.

Participants

Participants were 27 older adults living with heart failure (n = 13) or lung cancer (n = 14), aged 69–89 years (mean 79 ± 4.3 years) and considered by their health professionals to be in their last year of life. In 12 of the interviews, a family carer was also present and made contributions.

Findings

For community-dwelling older adults, family carers are conceptualised as ‘conductors’; making strong contributions to maintaining the rhythm of good care throughout the illness trajectory. Following older adults’ hospital admission, family carers find themselves in the role of ‘second fiddle’, their ability to work with the individual and to make or influence decisions vastly reduced. Despite this, carers continue to invest considerable effort in maintaining continuity in the carer relationship to maximise the individual's wellbeing by identifying needs, filling gaps in provision and advocating on patients’ behalf. Family carers act flexibly to provide continuity, support and take responsibility for older adults’ wellbeing across settings.

Conclusions

Nurses and family carers working together, and greater appreciation of the contribution and role of family carers by health professionals may contribute to improving the quality and continuity of care for older adults.     

High C5a levels are associated with increased mortality in sepsis patients--no enhancing effect by actin-free Gc-globulin

Background

Immune paralysis of phagocytic cells due to excess of the complement activation product C5a has been proposed as a critical pathomechanism in sepsis. In vitro studies suggest an interaction of C5a with Group-specific globulin (Gc-globulin).

Study objectives

To examine the predictive value of serum concentrations of both, C5a and actin-free Gc-globulin, and their ratio for prognosis (mortality) of critically ill patients.

Patients

154 critically ill (septic and non-septic) adult patients admitted to a Medical ICU and 38 healthy controls.

Measurements

Actin-free Gc-globulin and C5a were measured on ICU admission, alongside extensive laboratory, clinical and prospective outcome measures.

Results

Actin-free Gc-globulin and C5a serum concentrations were significantly reduced in critically ill patients compared with healthy controls. C5a levels, but not actin-free Gc-globulin, were significantly lower in patients with sepsis (n = 112) than in critically ill patients without sepsis (n = 42). C5a serum level was a prognostic parameter in patients with sepsis: High C5a levels were associated with increased mortality (at ICU and during follow-up). Although C5a and actin-free Gc-globulin were positively correlated, increasing serum concentrations of actin-free Gc-globulin did not enhance the C5a dependent effects in terms of prognosis or mortality in septic patients.

Conclusions

Investigation for C5a and/or actin-free Gc-globulin serum levels upon admission to the ICU may be helpful diagnostic tools. In patients with sepsis, C5a levels are an independent predictor of prognosis. However, different to pre-existing in vitro data, a clinically relevant interaction between actin-free Gc-globulin and C5a in terms of prognosis in severe inflammatory conditions is not given.     

Correspondence of diagnosis to initial treatment for neck pain

Objectives

A patient care model has been proposed linking patient assessment to diagnosis to treatment to outcomes. Validation of this method is required. McKenzie developed the mechanical diagnosis and therapy (MDT) process to diagnose neck pain and direct its treatment. No study known to the authors has determined the link between MDT diagnosis and treatment for neck pain. The objective of the current study was to determine inter-rater agreement on the link between MDT diagnosis and treatment for neck pain.

Setting

Outpatient physical therapy clinics.

Participants

Fifty-four clinician raters, 20 patients with neck pain.

Design

Clinicians, MDT-trained for neck pain, viewed videotaped examinations of adult patients with neck pain and rated diagnosis and initial treatment.

Main outcomes measures

Inter-rater agreement on the MDT diagnosis-treatment link and derangement-directional preference link.

Results

Inter-rater agreement on the diagnosis-treatment link of derangement-directional preference and not derangement-no directional preference of treatment was with moderate clinical and statistical significance (κ = 0.46, 95% confidence interval 0.45-0.47; P < 0.001; 86% agreement). There was moderate agreement on derangement-directional preference for the ‘derangement-extension’ link (κ = 0.40, 95% confidence interval 0.38-0.41; P < 0.001) and ‘derangement-lateral’ link (κ = 0.45, 95% confidence interval 0.44-0.46; P < 0.001), but with poor agreement for the ‘derangement-flexion’ link (κ = 0.04, 95% confidence interval 0.02-0.05; P < 0.001).

Conclusions

Clinicians trained in MDT for neck pain link diagnosis to initial treatment of patients with neck pain with moderate reliability, specifically using extension or laterally directed preference for treatment. The current study contributes towards validation of the diagnosis-treatment link of the MDT patient care model for neck pain.     

Student nurses’ de-escalation of patient aggression: A pretest-posttest intervention study

Background

Experts recommend staff training to prevent and manage aggressive situations involving patients or their relatives. However, in many countries this subject is not covered in pre-registration nursing education. In addition, the evidence regarding its impact on practical placements remains weak.

Objective

This study examines the influence of an aggression management training programme for nursing students on their performance in de-escalating aggressive patients.

Design

Pretest-posttest within-and-between-groups design.

Setting

A School of Nursing in Germany.

Participants

Convenience sample out of six classes of nursing students at differing educational levels (10th to 28th month of nursing education, n = 78, mean age = 22).

Methods

In a cross-sectional and longitudinal two groups before and after design nursing students encountered two scenarios (A or B) with simulation patients. After completing the training, each student was confronted with the unknown other scenario. De-escalation experts from three German-speaking countries evaluated 156 video scenes using the De-escalating Aggressive Behaviour Scale (DABS), not knowing whether the videos had been recorded before or after the training. Mean values and statistical significance tests were computed to compare the results.

Results

The performance levels of students who had been trained rose significantly from 2.74 to 3.65 as measured by the DABS on a 5-point Likert scale (Wilcoxon test p < .001). The trained students managed scenario A significantly better than the untrained students (untrained 2.50, trained 3.70; Mann-Whitney-U-test p < .001,). Similar results were found for scenario B (untrained 3.01, trained 3.61; Mann-Whitney-U-test p < .001). No significant differences were found in the pretest results irrespective the students’ age or duration of previous nursing education.

Conclusions

Aggression management training is able to improve nursing students’ performance in de-escalating aggressive behaviour. A maturation-effect on the de-escalating performance due to general nursing education or age is unlikely.     

Implementation of newborn screening for Krabbe disease: Population study and cutoff determination

Objective

The aim of this study was to develop a newborn screening algorithm for Krabbe disease.

Design and methods

We measured the galactocerebrosidase activity of 139,074 anonymous newborns, 56 known carriers, and 16 Krabbe patients using a tandem mass spectrometry method. The activities were converted to percentages of daily mean activity (%DMA), and the results from diseased and normal populations were used to establish cutoffs.

Results

The absolute activities for the newborns ranged from 0.17 to 355 μmol/L h (N = 139,074) and activities for Krabbe-positive controls ranged from 0.08 to 0.48 μmol/L h (N = 16, n = 91 measurements) while activities for carriers ranged from 0.28 to 2.71 μmol/L h (N = 56, n = 72 measurements). Cutoffs were set based on results from Krabbe-positive and carrier controls and the newborn population distribution.

Conclusions

The algorithm and cutoffs we propose provided 100% detection of all positive controls with 60/100,000 screen positive results predicted. In the course of this study, one anonymous newborn was predicted to have Krabbe disease based on enzyme activity and subsequent DNA analysis.     

The impact of social support on mental health service users’ sense of coherence: A longitudinal panel survey

Background

Social support is a crucial coping resource in the development of a strong sense of coherence. However, little is known about which components of social support are most important for the positive development of sense of coherence.

Objectives

The aim of this study is to investigate the ability of the six social provisions in Weiss's theory of social support to predict the positive development of sense of coherence among people with mental health problems.

Design

The study has a prospective design including a baseline assessment and one-year follow-up.

Settings

The community mental health care system in a large city in Norway.

Participants

The sample comprised 107 people with mental health problems. The inclusion criteria were: 18-80 years of age, living at home, mental health problems considered relatively stable, able to engage in dialogue, reliant on the mental health services and/or an activity centre, good orientation, mastery of the Norwegian language and no alcohol and/or drug problems. A total of 92 completed both measures.

Methods

Sense of coherence was measured by the Sense of Coherence questionnaire, mental symptoms by the revised Symptom Checklist-90-R and social support by The Social Provision Scale (all Norwegian versions).

Results

The results show that while social support predicted change in sense of coherence (standardized beta coefficient for social support was 0.32, P = 0.016), mental symptoms did not (standardized beta coefficient −0.07, P = 0.621). The social provision of opportunity for nurturance contributed most to the prediction (standardized beta coefficient 0.24, P = 0.019).

Conclusions

The results indicate that improving social support with special emphasis on opportunity for nurturance might provide important opportunities for increasing sense of coherence among people with mental health problems.     

The effectiveness of music in relieving pain in cancer patients: A randomized controlled trial

Objectives

To examine effects of sedative music on cancer pain.

Design

A randomized controlled trial.

Settings

Two large medical centers in Kaoshiung City, in southern Taiwan.

Participants

126 hospitalized persons with cancer pain.

Methods

Participants were randomly assigned to an experimental (n = 62) or a control group (n = 64), with computerized minimization, stratifying on gender, pain, and hospital unit. Music choices included folk songs, Buddhist hymns (Taiwanese music), plus harp, and piano (American). The experimental group listened to music for 30 min; the control group rested in bed. Sensation and distress of pain were rated on 100 mm VAS before and after the 30-min test.

Results

Using MANCOVA, there was significantly less posttest pain in the music versus the control group, p < .001. Effect sizes were large, Cohen's d = .64, sensation, d = .70, distress, indicating that music was very helpful for pain. Thirty minutes of music provided 50% relief in 42% of the music group compared to 8% of the controls. The number needed to treat (NNT) to find one with 50% sensation relief was three patients. More patients chose Taiwanese music (71%) than American music (29%), but both were liked and effective.

Conclusions

Offering a choice of familiar, culturally appropriate music was a key element of the intervention. Findings extend the Good and Moore theory (1996) to cancer pain. Soft music was safe, effective, and liked by participants. It provided greater relief of cancer pain than analgesics alone. Thus nurses should offer calming, familiar music to supplement analgesic medication for persons with cancer pain.     

Nurse staffing and patient outcomes in Belgian acute hospitals: cross-sectional analysis of administrative data

Background

Studies have linked nurse staffing levels (number and skill mix) to several nurse-sensitive patient outcomes. However, evidence from European countries has been limited.

Objectives

This study examines the association between nurse staffing levels (i.e. acuity-adjusted Nursing Hours per Patient Day, the proportion of registered nurses with a Bachelor's degree) and 10 different patient outcomes potentially sensitive to nursing care.

Design-setting-participants

Cross-sectional analyses of linked data from the Belgian Nursing Minimum Dataset (general acute care and intensive care nursing units: n = 1403) and Belgian Hospital Discharge Dataset (general, orthopedic and vascular surgery patients: n = 260,923) of the year 2003 from all acute hospitals (n = 115).

Methods

Logistic regression analyses, estimated by using a Generalized Estimation Equation Model, were used to study the association between nurse staffing and patient outcomes.

Results

The mean acuity-adjusted Nursing Hours per Patient Day in Belgian hospitals was 2.62 (S.D. = 0.29). The variability in patient outcome rates between hospitals is considerable. The inter-quartile ranges for the 10 patient outcomes go from 0.35 for Deep Venous Thrombosis to 3.77 for failure-to-rescue. No significant association was found between the acuity-adjusted Nursing Hours per Patient Day, proportion of registered nurses with a Bachelor's degree and the selected patient outcomes.

Conclusion

The absence of associations between hospital-level nurse staffing measures and patient outcomes should not be inferred as implying that nurse staffing does not have an impact on patient outcomes in Belgian hospitals. To better understand the dynamics of the nurse staffing and patient outcomes relationship in acute hospitals, further analyses (i.e. nursing unit level analyses) of these and other outcomes are recommended, in addition to inclusion of other study variables, including data about nursing practice environments in hospitals.     

Effects of monthly practice on nursing students' CPR psychomotor skill performance

Aims

The study examined the effects of brief monthly practice on nursing students’ CPR psychomotor skill performance at 3, 6, 9, and 12 months compared to a control group with no practice, and of repeating the initial BLS course at 12 months.

Methods

Nursing students (n = 606) completed either HeartCode™ BLS or an instructor-led course and were then randomly assigned to an intervention group practice schedule, consisting of experimental (6 min of monthly practice on a voice advisory manikin) or control (no practice) and test out month. Every 3 months, a subset of students was randomly selected from both groups for reassessment of their CPR psychomotor skills. Outcome measures were compression rate and depth, percent of compressions performed with adequate depth, percent performed with correct hand placement, ventilation rate and volume, and percent of ventilations with adequate volume.

Results

At 3 months, there were no differences between the groups in mean ventilation volume (p = 0.71), but with practice by 6 months students were able to ventilate with an adequate volume; this skill continued to improve with monthly practice. In the control group, the mean ventilation volumes were less than the recommended minimum throughout the 12 months. The control group had a significant loss of ability to compress with adequate depth between 9 and 12 months (p = 0.004). By practicing only 6 min a month, students maintained or improved their CPR skills over the 12-month period.

Conclusion

The findings confirmed the importance of practicing CPR psychomotor skills to retain them and also revealed that short monthly practices could improve skills over baseline.