Pneumonia in the critically ill patient: rapid syndromic diagnosis by multiplex PCR in a General Hospital for Acute Care

Abstract

It has been shown in various studies that advances in microbiological diagnosis reduce the delivery time of results and have an evident clinical impact. Today, techniques based on nucleic acid amplification allow us to diagnose directly from the sample and add the possibility of detecting more than one agent. This impacts both the control of MMR and the initiation of appropriate therapy. The implementation of a rapid multiplex PCR system for pneumonia can be useful in critical areas where acute respiratory infections (ARI) are frequent and time is a determining factor for therapeutic success. The objective of our project was to evaluate the implementation of rapid syndromic diagnosis by multiple PCR for pneumonia in the management of ARI treatment in an Intensive Care Unit. The therapeutic behavior was the relevant variable. This new diagnosis provided us with an agile tool, with a response time of 3 to 4 hours. The absence or presence of resistance genes and the identified microorganism was what led to the correct therapeutic approach in 75% of the cases. It constituted an important tool for the control of bacterial multiresistance and increased the opportunity for therapeutic success.