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Pneumonia IV: Management

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Acute Respiratory Failure-V

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Osteopathic Manipulative Treatment as a Useful Adjunctive Tool for Pneumonia

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Antimicrobial Therapy for Pneumonia or Fluid Overload?

Uche J Mbadugha¹, Salim Surani^2,3, Nana Akuffo⁴

¹Pharmacy, Corpus Christi Medical Center, Corpus Christi, USA.

|February 22, 2021

Summary

Nearly half of critically ill patients with fluid overload or heart failure (HF) were inappropriately treated for pneumonia with antibiotics. This highlights the need for careful clinical assessment to avoid unnecessary antimicrobial use in patients with heart failure.

Keywords:

antimicrobial therapy fluid overload heart failure pneumonia

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Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses

Published on: August 30, 2018

Area of Science:

Critical Care Medicine
Infectious Diseases
Cardiology

Background:

Patients with fluid overload or heart failure (HF) are often misdiagnosed with pneumonia and treated with antimicrobials.
Accurate diagnosis is crucial to prevent inappropriate antimicrobial use in critically ill patients.

Purpose of the Study:

To evaluate the appropriateness of antimicrobial therapy in critically ill patients diagnosed with pneumonia but actually having fluid overload or heart failure.
To compare clinical and laboratory findings between patients with pneumonia and those with fluid overload/heart failure.

Main Methods:

Retrospective chart review of 56 critically ill patients treated for pneumonia in the ICU.
Patients were categorized into Group A (pneumonia) and Group B (no pneumonia, but fluid overload/heart failure).
Group B was further divided into B1 (heart failure/fluid overload) and B2 (no HF/fluid overload). Comparisons were made between Group A and B1.

Main Results:

48% of patients (27/56) received antimicrobial therapy without evidence of pneumonia, primarily due to fluid overload or heart failure (Group B1).
Group B1 showed significantly higher median Brain Natriuretic Peptide (BNP) levels (1040 pg/mL) compared to Group A (514 pg/mL) (p=0.04).
Patients in Group B1 also had a higher incidence of reduced left ventricular ejection fraction (LVEF < 55%) compared to Group A (14 vs. 4).

Conclusions:

A significant proportion of antimicrobial therapy in critically ill patients is inappropriately used for conditions mimicking pneumonia, such as heart failure.
Elevated BNP and reduced LVEF are key indicators differentiating heart failure from pneumonia, crucial for appropriate treatment decisions.
Emphasizing accurate interpretation of radiographic, laboratory, and clinical data is essential to guide empiric antimicrobial therapy and avoid overuse.