Abstract

IntroductionNursing and healthcare-associated pneumonia (NHCAP) was proposed by the Japanese Respiratory Society in 2011. However, the clinical characteristics of NHCAP are still unclear. Thus, this study aimed to clarify its clinical characteristics. MethodsThis multicenter prospective observational study included 596 patients with NHCAP from 73 centers in Japan between May 2014 and February 2016. ResultsPatient background was characterized by an older age (81.5 ± 10.1 years), most patients had complications (94.1%), and many patients had a high probability of aspiration pneumonia (68.6%). Among the isolates, Streptococcus pneumoniae was the most common (12.7%), while Pseudomonas aeruginosa was also isolated at 10.8%. The overall 30-day mortality rate for patients was 11.9%, and the factors affecting mortality were non-ambulatory status, high blood urea nitrogen level, impaired consciousness, and low albumin level. Sulbactam/ampicillin was the most commonly administered antibiotic, including in groups with high severity of illness and high risk of multidrug-resistant (MDR) pathogens. Both the A-DROP and I-ROAD scores were useful in predicting the prognosis of NHCAP. Confirmation of intention to provide do not attempt resuscitation (DNAR) instructions was given to 333 patients (55.9%), and 313 patients agreed to DNAR instructions. ConclusionsNHCAP tends to occur in elderly patients with underlying diseases. The risk of MDR pathogens and the mortality rate are intermediate for community-acquired pneumonia and hospital-acquired pneumonia. As NHCAP is considered an important concept in an aging society, such as in Japan, establishing a treatment strategy that considers not only prognosis but also quality of life would be beneficial.

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