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Published on: March 9, 2019
Risk Factors for the Development of Pressure Injury in the Heel Area in Critically Ill Patients
Anna Surmacz1,2, Izabela Sałacińska2, Maria Kózka3
1Specialist Hospital, Podkarpackie Oncology Center of Fr. B. Markiewicz in Brzozów, 36-200 Brzozów, Poland.
Critically ill patients with heel pressure injuries face increased risks from catecholamine infusions and poor distal perfusion, indicated by low ankle-brachial index (ABI) and creatinine levels. These factors significantly elevate the likelihood of developing these severe injuries.
Area of Science:
- Critical care medicine
- Wound healing research
- Patient safety protocols
Background:
- Hospital-acquired pressure injuries, particularly on heels, are a significant global issue for critically ill patients.
- Risk factors include comorbidities, circulatory dysfunction, organ failure, medications, and immobility.
- These factors impair microperfusion, leading to tissue hypoxia and damage.
Purpose of the Study:
- To investigate the impact of various risk factors on the development of heel pressure injuries in intensive care unit (ICU) patients.
- To identify specific clinical and biochemical markers associated with increased risk.
Main Methods:
- A prospective observational study involving 120 ICU patients.
- Initial risk assessment using the Braden scale and ankle-brachial index (ABI) within 24 hours of admission.
- Follow-up assessments between 5-10 days, including biochemical markers (CRP, creatinine) and perfusion evaluation.
- Statistical analysis using IBM SPSS Statistics v. 21.
Main Results:
- Catecholamine infusion (p < 0.001) and low ankle-brachial index (ABI-PAD) (p = 0.026) significantly correlate with heel pressure injury risk.
- Peripheral artery disease (PAD), indicated by low ABI, increases heel pressure injury likelihood by approximately fivefold (OR = 5.10).
- Elevated CRP (p = 0.016) and low creatinine levels (OR = 8.75, p = 0.033) are strongly associated with pressure ulcer development.
Conclusions:
- Distal perfusion disorders and circulatory failure are key contributors to pressure ulcer development in critically ill patients.
- Catecholamine use for circulatory support elevates the risk of heel pressure injuries.
- Pharmacotherapy and invasive procedures may increase pressure ulcer risk, irrespective of prevention efforts.
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Preparation:

