• Hélène Bricout, Emilia Perinetti, Paolo Marchettini, Pietro Ragni, Carla Maria Zotti, Giovanni Gabutti, Antonio Volpi, and Elisabetta Franco.
• Epidemiological Department, Sanofi Pasteur MSD, Lyon, France. hbricout@spmsd.com.
• Bmc Infect Dis. 2014 Jan 1;14:637.

BackgroundPost-herpetic neuralgia (PHN) is the most common complication in herpes zoster (HZ) patients.MethodsWe performed a longitudinal, prospective study in 108 general practices throughout Italy to assess how many immunocompetent patients aged ≥50 years with newly diagnosed HZ develop HZ-associated pain, its duration and management over 6-months. HZ-associated pain was assessed by a direct question to the patient and by self-assessment of the worst pain felt in the previous two weeks on a visual analogue scale (VAS), a score ≥3 was taken as pain. PHN was defined as pain reported during the study period persisting for ≥3 months. Quality of life (QoL) was measured using the SF-12 questionnaire.ResultsAt enrolment, 370 of the 413 patients (89.6%) reported HZ-associated pain which was still present in 20.6% and 9.2% of patients after three and six months, respectively, despite many patients receiving recommended anti-viral therapy. The overall QoL scores were lower than those in healthy Italians of similar age; scores for patients with HZ-associated pain were lower. The presence of >50 vesicles and VAS score ≥3 at enrolment, and being male were significantly associated with PHN at three months.ConclusionsThese results suggest that HZ and PHN represent an important burden of disease in the elderly. There is a need for interventions that can prevent and reduce the burden of HZ to help improve the quality of life of the elderly. These data may be useful as baseline epidemiology data for the assessment of the impact of the VZV vaccine in Italy, after its implementation.

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