Hemodynamics, fluids & transfusion
Nailfold videocapillaroscopy – a novel method for the assessment of hemodynamic incoherence on the intensive care unit (ICU)
Authors' conclusion
NVC-imaging provides comparable information on the microcirculation in critically ill patients compared to sublingual IDF microscopy.
Study context
- Population
- Critically ill patients on a surgical ICU; healthy volunteers for score establishment
- Participants
- 10 vs 60
- Comparison
- Nailfold videocapillaroscopy vs sublingual incident darkfield microscopy
- Healthy volunteersn = 10
- Critically illn = 60
- Outcome
- Correlation of NVC scores (CapMic score, MES) with consensus IDF microscopy parameters (PPV, MFI)
- Follow-up
- Single time point
Methodological detailssingle time point, surgical ICU
- Single time point
- Surgical ICU
Main finding
As reported in the abstract
Correlation of NVC with IDF microscopy in critically ill patients
- PPV (proportion of perfused vessels) vs Microangiopathy Evolution Score (MES), Spearman's R
- −0.590
- Microvascular flow index (MFI) (microvascular flow index) vs MES, Spearman's R
- −0.585
- PPV vs capillary microcirculation (CapMic) score, Spearman's R
- 0.714
- MFI vs CapMic score, Spearman's R
- 0.711
- MES vs CapMic score, Spearman's R
- −0.610
Further findings
CapMic score in healthy volunteers, rest vs iatrogenic limb ischemia
- CapMic score at rest (mean ± SD)
- 0.80 ± 0.03
- CapMic score under iatrogenic limb ischemia (mean ± SD)
- 0.51 ± 0.12
- p < 0.001
Microcirculation vs vasopressor and fluid requirements
- Both sublingual and nailfold microcirculation deteriorated under rising norepinephrine- and crystalloid volume-requirements
Original publication
Nailfold videocapillaroscopy – a novel method for the assessment of hemodynamic incoherence on the ICU. Crit Care. Published 3 December 2024. doi:10.
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