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  • Colistin nebulization...

Colistin nebulization improves clinical outcomes in ICU-admitted patients with nosocomial pneumonia

AditiWritten by Aditi Published On 2023-01-17T10:00:06+05:30  |  Updated On 18 Jan 2023 6:49 AM GMT
Colistin nebulization improves clinical outcomes in ICU-admitted patients with nosocomial pneumonia

Taiwan: A study published in the Annals of Intensive Care has concluded that the patients treated with substitutive nebulized colistin have a lower rate of clinical failure and a similar mortality rate. The researchers reported comparable treatment outcomes and risk of nephrotoxicity based on patients treated with high- and low-dose nebulized colistin. The researchers included...

Taiwan: A study published in the Annals of Intensive Care has concluded that the patients treated with substitutive nebulized colistin have a lower rate of clinical failure and a similar mortality rate. The researchers reported comparable treatment outcomes and risk of nephrotoxicity based on patients treated with high- and low-dose nebulized colistin.

The researchers included critically ill patients with hospital-acquired pneumonia/ventilator-associated pneumonia (HAP/VAP caused by carbapenem-resistant Gram-negative bacteria (CR-GNB).

It is already known that nephrotoxicity is the most common adverse reaction of most significant concern reported with intravenous colistin treatment. There needs to be more data on the descriptive and relevant role of substitutive nebulized colistin for managing patients with nosocomial pneumonia caused by CR-GNB in critically ill patients.

Considering this, team of researchers led by Jia-Yih Feng investigated the effectiveness of substitutive nebulized colistin clinically in treatment outcomes of nosocomial pneumonia caused by CR-GNB. The researchers also explored the impact of the dosing strategy of nebulized colistin.

The study summary is given as follows:

  • The study included subjects without intravenous colistin treatment.
  • The subjects were categorized based on substitutive nebulized colistin use alongside IV antibiotics.
  • Between the two groups, a comparison was made between clinical responses and the mortality rate.
  • The study included 343 and 214 patients with and without substitutive nebulized colistin, respectively.
  • The clinical failure rate on days 7, 14 and 28 was 22.6 vs 42.6%, 27.0 vs 42.6% and 27.8 vs 41.7%. (PS matched cohort). This was lower in patients with nebulized colistin.
  • Nebulized colistin was an independent factor which was associated with lower day 14 clinical failure.
  • The Original cohort had an adjusted odds ratio (aOR) of 0.45
  • The PS-matched cohort had aOR of 0.48.
  • The clinical failure rate and mortality rate had no difference between patients receiving high (> 6 MIU/day) and low (≤ 6 MIU/day) doses of nebulized colistin in the PS-matched cohort.

To conclude, the study reports substitutive nebulized colistin with better clinical outcomes. Our findings are only applicable in endemic HAP/VAP caused by CR-GNB, mainly CRAB, they said.

The researchers wrote that a further prospective study is required elucidate the clinical benefits of substitutive nebulized colistin, including the application of high-dose nebulized colistin in specific populations.

Further reading:

Feng et al. role of nebulized colistin as a substitutive strategy against nosocomial pneumonia caused by CR-GNB in intensive care units: a retrospective cohort study. Ann. Intensive Care 13, 1 (2023). https://doi.org/10.1186/s13613-022-01088-4

substitutive nebolized colistin nosocomial pneumonia annals of intensive care 
Source : Annals of Intensive Care
Aditi
Aditi

    BDS,MDS in Periodontics and Implantology

    Dr. Aditi Yadav is a BDS, MDS in Periodontics and Implantology. She has a clinical experience of 5 years as a laser dental surgeon. She also has a Diploma in clinical research and pharmacovigilance and is a Certified data scientist. She is currently working as a content developer in e-health services. Dr. Yadav has a keen interest in Medical Journalism and is actively involved in Medical Research writing.

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