Should Sensory Impairment Be Considered in Frailty Assessment? A Study in the GAZEL Cohort

OBJECTIVES

The assessment of sensory difficulties is sometimes included in the screening of frailty in ageing population. This study aimed to compare the prevalence of frailty and associated risk of adverse outcomes depending on whether sensory difficulties participated in the definition of frailty.

DESIGN

Prospective cohort study - GAZEL cohort.

SETTING

France.

PARTICIPANTS

The 13,128 subjects who completed a questionnaire in 2012.

MEASUREMENTS

According to the Strawbridge questionnaire, subjects were considered frail if they reported difficulties in two domains or more among physical, nutritive, cognitive and sensory domains. The risk of adverse health outcomes was assessed by using logistic regression models (hospitalisations, onset of difficulty in performing movements of everyday life) and multivariate Cox proportional hazards models (mortality).

RESULTS

Mean age was 66.8 +/- 3.4 years and 73.8% were males. The prevalence of frailty varied from 4.4 to 14.2% depending on whether the sensory domain was excluded or included. During follow-up, 182 deaths (1.4%), 479 hospitalisations (3.6%) and 703 cases of new disability (8.0%) were observed. Both definitions of frailty predicted the onset of difficulties to perform everyday movements, with 2 to 3-fold increase in the risk. The inclusion of the sensory domain in the definition made frailty predictive of hospitalisations (Odds Ratio 1.31 [1.01-1.70]) but the association with mortality was only observed when sensory difficulties were ignored (Hazard Ratio 2.28 [1.32-3.92]).

CONCLUSION

The inclusion of a sensory domain into a frailty screening instrument has a major impact in terms of prevalence and modifies the risk profile associated with frailty. In order to develop the use of frailty screening instruments in clinical practice, further researches will need to carefully evaluate the impact on risk prediction of the different domains involved.

[Acute transverse myelitis and Lyme borreliosis: a case report]

Lyme disease is an infectious disease caused by a spirochete of the Borrelia sensu lato group. Its incidence has greatly increased in recent years. The main vector is a tick of the Ixodes family. Clinical manifestations are multiple and show the multi-organ character of the disease. In terms of frequency, joint and neurological presentations, respectively more frequent in North America and Europe, are the main manifestations after cutaneous symptoms, of which erythema migrans is the most common, followed by cardiac and ocular signs. Other signs exist but are anecdotal. Neuroborreliosis manifests itself most often with peripheral facial palsy, but there are other clinical forms, which include acute myelitis (4-5% of neuroborreliosis). We present here the case of a 16-year-old teenager with acute myelitis and meningeal involvement due to Lyme disease, who presented with atypical symptoms (massive and rapid weight loss, vomiting). MRI showed localized marrow edema as well as leptomeningeal and root enhancement. Lumbar puncture showed lymphocytic pleocytosis. Lyme serology was positive both in blood and cerebrospinal fluid. Even if acute myelitis remains exceptional among neuroborreliosis manifestations, this diagnosis has to be thought of when a child presents with unexplained neurological symptoms.