French Multicenter Evaluation of the Appropriateness of Admission to the Emergency Department of the Over-80s

BACKGROUND

Persons over 80 represents 40% of patients in French emergency services. We assessed the appropriateness of these admissions and sought to identify risk factors for inappropriate hospital stays.

METHODS

The appropriateness of admission was assessed in a prospective, cross-sectional, multicenter study in eight hospitals in France by means of the Appropriateness Evaluation Protocol (French version, AEPf) during two non-consecutive periods of four weeks in 2010. We analyzed admission of patients aged 80 and over who were admitted to the hospital after a stay in the emergency department of the same hospital. Demographics and morbidity factors were recorded as were administrative hospitalization data to identify risk factors associated with inappropriate admissions. We also evaluated the economic impact of inappropriate admissions. For cost analysis, all variables were obtained from anonymized hospital reports of a diagnosis-related group system used for funding of the hospitals by health insurance.

RESULTS

During two different periods, 1577 patients were included. 139 (8.8%) hospital admissions were inappropriate according to explicit criteria of the AEPf, but 18 of these (1.1%) were in fact considered appropriate by the physician responsible for the admission, leading to 121 (7.7%) inappropriate admissions. Multivariate logistic regression showed that patients with heart disease were less often subject to inappropriate admission (odds ratio OR= 0.36 [0.23; 0.56], p < 0.001), as also were patients who usually lived in a nursing home (OR = 0.53 [0.30; 0.87], p = 0.018) and patients with higher Acute Physiology Scores (OR = 0.97 [0.95; 0.99], p < 0.001). Inappropriate admission increased when patients had a syndrome as the main diagnosis (OR = 1.81 [1.81; 2.83], p = 0.010). By contrast, cognitive functions, gait and balance disturbance or falls, behavioral disorders and method of transport to the emergency department did not change the probability of inappropriateness. The median cost of the hospital stay of an older patient was 3 606.5 [2 498.1; 4 994.2] euros for inappropriate admissions.

CONCLUSION

Inappropriate emergency admissions of older patients were infrequent. None of the geriatric syndromes were linked with the phenomenon and principle causes were severity of illness, mention of a cardiac disease, unclear pattern of consultation and institutionalized way of life.

Assessment of five screening strategies for optimal detection of carriers of third-generation cephalosporin-resistant Enterobacteriaceae in intensive care units using daily sampling

There is no consensus on optimal screening procedures for multidrug-resistant Enterobacteriaceae (MDRE) in intensive care units (ICUs). Therefore, we assessed five strategies for the detection of extended-spectrum beta-lactamase (ESBL) and high-level expressed AmpC cephalosporinase (HL-CASE) producers. During a 3-month period, a rectal screening swab sample was collected daily from every ICU patient, from the first 24 h to the last day of ICU stay. Samples were plated on MDRE-selective media. Bacteria were identified using MALDI-TOF mass spectrometry and antibiograms were performed using disk diffusion. MDREs were isolated from 682/2348 (29.0%) screening samples collected from 93/269 (34.6%) patients. Incidences of patients with ESBL and HL-CASE producers were 17.8 and 19.3 per 100 admissions, respectively. In 48/93 patients, MDRE carriage was intermittent. Compared with systematic screening at admission, systematic screening at discharge did not significantly increase the rate of MDRE detection among the 93 patients (62% vs. 70%). In contrast, screening at admission and discharge, screening at admission and weekly thereafter, and screening at admission and weekly thereafter and at discharge significantly increased MDRE detection (77%, p 0.02; 76%, p 0.01; 86%, p<0.001, respectively). The difference in MDRE detection between these strategies relies essentially on the levels of detection of patients with HL-CASE producers. The most reasonable strategy would be to collect two samples, one at admission and one at discharge, which would detect 87.5% of the ESBL strains, 67.3% of the HL-CASE strains and 77.4% of all MDRE strains. This study should facilitate decision-making concerning the most suitable screening policy for MDRE detection in a given ICU setting.

[Tolerance and efficacy of preoperative radiation therapy for elderly patients treated for rectal cancer]

PURPOSE

To retrospectively assess the impact of age on tolerance and oncologic outcomes treated by neoadjuvant treatment for patients of 70 years old or above with locally advanced rectal cancer.

PATIENTS AND METHODS

Ninety-one consecutive patients were divided into three groups: group 1 from 70 to 75 years (n=31); group 2: 76 to 79 years (n=31) and group 3, patients aged 80 years or above (n=29). Radiation therapy was delivered according two schemes: 25Gy in five fractions (short scheme) or 45 to 50Gy with a classical fractionation (long scheme). Long scheme patients received a concomitant chemotherapy with 5-fluoro-uracile alone or associated with oxaliplatin.

RESULTS

The three groups were comparable for performance status, Charlson's score and T staging. Long scheme radiation therapy and chemotherapy were performed in 77.5, 74.5 and 48.3% of patients (P=0.03) and 77.4, 71 and 41.4% (P=0.006) in the groups 1, 2 and 3, respectively. All patients treated with the short scheme irradiation received the treatment without any acute toxicity. In the long scheme group, 65% of patients received the treatment on time and grade 3 or above toxicity was observed in 12% of patients who did not receive oxaliplatin and in 48% of patients who received oxaliplatin. The overall survival rate at 3 and 5 years was 66.9% and 60.8% in the group 1, 90.5% and 75.9% in the group 2 and 80.5% and 73.8% in the group 3 (P=0.15).

CONCLUSION

Neoadjuvant treatment is feasible with encouraging survival rates for patients aged 70 years and older. Short scheme radiation therapy seems to be an interesting option in this population.

Risk factors and clinical outcome of unsuspected pulmonary embolism in cancer patients: a case-control study

BACKGROUND

Little is known about the risk factors and outcome of unsuspected pulmonary embolism (UPE) in cancer patients.

OBJECTIVES

To assess the risk factors and outcome of UPE in cancer patients.

METHODS

The charts of 66 patients diagnosed with UPE were reviewed. Two control groups were selected: 132 cancer patients without pulmonary embolism (PE) and 65 cancer patients with clinically suspected PE. Variables associated with UPE were identified by multivariable analysis. Six-month survival and recurrent venous thromboembolism were compared by use of Cox proportional analysis.

RESULTS

Twenty-seven (40.9%) patients with UPE had symptoms suggesting PE. Adenocarcinoma (odds ratio [OR] 4.45; 95% confidence interval [CI] 1.98-9.97), advanced age (OR 1.18; 95% CI 1.02-1.38), recent chemotherapy (OR 4.62; 95% CI 2.26-9.44), performance status > 2 (OR 7.31; 95% CI 1.90-28.15) and previous venous thromboembolism (OR 4.47; 95% CI 1.16-17.13) were associated with UPE. When adjusted for tumor stage and performance status, 6-month mortality did not differ between patients with UPE and patients without PE (hazard ratio 1.40; 95% CI 0.53-3.66; P = 0.50). Patients with UPE were more likely to have central venous catheters and chemotherapy and less likely to have proximal clots than patients with clinically suspected PE. Recurrent venous thromboembolism occurred in 6.1% and 7.7% of patients with UPE and symptomatic PE, respectively.

CONCLUSION

UPE is not associated with an increased risk of death. Patients with clinically suspected PE and those with UPE have similar risks of recurrent venous thromboembolism.

[Role of French hospital claims databases from care units in epidemiological studies: the example of the "Cohorte Enfant Scanner" study]

BACKGROUND

The "Cohorte Enfant Scanner", a study designed to investigate the risk of radiation-induced cancer after childhood exposure to CT (computed tomography) examinations, used clinical information contained in the "programme de médicalisation des systèmes d'information" (PMSI) database, the French hospital activities national program based upon diagnosis related groups (DRG). However, the quality and adequacy of the data for the specific needs of the study should be verified. The aim of our work was to estimate the percentage of the cohort's children identified in the PMSI database and to develop an algorithm to individualize the children with a cancer or a disease at risk of cancer from medical diagnoses provided by the DRGs database.

METHODS

Of the 1519 children from the "Cohorte Enfant Scanner", who had had a CT scan in the radiology department of a university hospital in 2002, a cross linkage was performed with the DRGs database. All hospitalizations over the period 2002-2009 were taken into account. An algorithm was constructed for the items "cancer" and "disease at risk for cancer" on a sample of 150 children. The algorithm was then tested on the entire population.

RESULTS

Overall, 74% of our population was identified in the DRGs database. The algorithm individualized cancer diagnoses with 91% sensitivity (95% confidence interval [95%CI]: 86%; 97%) and 98% specificity (95%CI: 97%; 99%) and 86% positive predictive value (95%CI: 80%; 93%). For the diagnosis of disease at risk for cancer, the sensitivity, specificity and positive predictive value were respectively 91% (95%CI: 84%; 98%), 94% (95%CI: 92%; 95%) and 52% (95%CI: 43%; 61%).

CONCLUSION

The DRG database identified with excellent sensitivity and specificity children with diagnoses of cancer or disease at risk for cancer. Hence, potential confounding factors related to the disease of the child can be taken into account for analyses performed with the cohort.

Diagnostic accuracy of magnetic resonance imaging for an acute pulmonary embolism: results of the 'IRM-EP' study

BACKGROUND

Magnetic resonance imaging (MRI) has not been validated as an alternative diagnostic test to computed tomography angiography (CTA) in patients with suspicion of a pulmonary embolism (PE).

OBJECTIVES

To evaluate performance of current MRI technology in diagnosing PE, in reference to a 64-detector CTA.

PATIENTS/METHODS

  Prospective investigation including 300 patients with a suspected PE, referred for CTA after assessment of clinical probability and D-dimer testing. MRI protocol included unenhanced, perfusion and angiographic sequences. MRI results were interpreted by two independent readers, to evaluate inter-reader agreement. Sensitivity and specificity were evaluated globally and according to PE location and to clinical probability category.

RESULTS

Of 300 enrolled patients, 274 were analyzed and 103 (37.5%) had a PE diagnosed by CTA. For patients with conclusive MRI results (72% for reader 1, 70% for reader 2), sensitivity and specificity were 84.5% (95% confidence interval [CI], 74.9-91.4%) and 99.1% (95% CI, 95.1-100.0%), respectively, for reader 1, and 78.7% (95% CI, 68.2-87.1%) and 100% (95% CI, 96.7-100.0%) for reader 2. After exclusion of inconclusive MRI results for both readers, inter-reader agreement was excellent (kappa value: 0.93, 95% CI: 0.88-0.99). Sensitivity was better for proximal (97.7-100%) than for segmental (68.0-91.7%) and sub-segmental (21.4-33.3%) PE (P < 0.0001). Sensitivity was similar for both readers within each clinical probability category.

CONCLUSIONS

Current MRI technology demonstrates high specificity and high sensitivity for proximal PE, but still limited sensitivity for distal PE and 30% of inconclusive results. Although a positive result can aid in clinical decision making, MRI cannot be used as a stand-alone test to exclude PE.

[Hyperuricemia in sickle cell disease in France]

PURPOSE

Hyperuricemia has been reported to be a common feature of sickle cell disease occurring between 32 to 41% of the patients, in studies conducted during the 1970's. Since then, this notion has been rarely challenged. The objective of this study was to assess the prevalence of hyperuricemia and gout in adult patients with sickle cell disease in France.

METHODS

Between May 2007 and March 2009, serum and urinary urate concentration, creatininemia and hemogram were prospectively assessed in all consecutive sickle cell patients, followed in our sickle cell disease centre. All subjects were in a clinically steady state. Clinical acute gout history was also recorded.

RESULTS

Sixty-five patients (mean age 31±10.3 years) were investigated. Mean uric acid serum level was 281.6±74μmol/L. Hyperuricemia was evidenced in six patients only (9.2%) (95% IC: 3.5-19.0). None of the patient had a medical history of acute gout. Patients in the higher serum uric acid tertile concentration had higher serum creatinine level (62.3±17.1μmol/L vs 51.5±12.6μmol/L, P<0.01), lower fractional excretion of urate (4.5% vs 6.8%, P<0.03) and higher reticulocyte count (median 219500/mm(3) vs 144000/mm(3), P=0.08) compared to the other patients.

CONCLUSION

Hyperuricemia and gout are not a clinical problem in sickle cell disease in our country. Nevertheless, our findings indicate that kidney function has to be fully explored if serum uric acid level is elevated or significantly deteriorates during follow-up. Serum uric acid level could be an early marker of renal dysfunction in sickle cell disease patients.