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April 8, 2015Annals of Neurology89 citationsOpen Access

Reversal strategies for vitamin K antagonists in acute intracerebral hemorrhage

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APAdrian Parry‐JonesMNMario Di NapoliJGJoshua N. Goldstein

Key Result

In patients with VKA-associated intracerebral hemorrhage, no reversal was associated with higher 30-day case fatality compared to combined FFP and PCC (61.7% vs 27.8%; HR 2.540, 95% CI 1.784-3.616).

Study Design

Type

Cohort (n=1,547)

Multicenter

Yes

Structured PICO

Does the choice of reversal strategy (FFP, PCC, both, or neither) affect 30-day case fatality in patients with vitamin K antagonist-associated intracerebral hemorrhage?

P
Population
1,547 patients with intracerebral hemorrhage on vitamin K antagonists from 16 stroke registries across 9 countries, evaluated for 30-day case fatality.
E
Exposure
Reversal strategies including fresh frozen plasma (FFP) alone, prothrombin complex concentrate (PCC) alone, or a combination of both FFP and PCC.
C
Comparator
No reversal therapy, or comparison between the different reversal strategies (FFP alone, PCC alone, both, or neither).
O
Outcome
All-cause 30-day case fatalityhard clinical

In patients with VKA-associated intracerebral hemorrhage, combining FFP and PCC may be associated with lower 30-day case fatality compared to either treatment alone or no reversal.

Main Result

Hazard Ratio: 2.54 (95% CI 1.784–3.616)

Absolute Event Rate: 61.7% vs 27.8%

p-value: p=<0.001

Abstract

OBJECTIVE: There is little evidence to guide treatment strategies for intracerebral hemorrhage on vitamin K antagonists (VKA-ICH). Treatments utilized in clinical practice include fresh frozen plasma (FFP) and prothrombin complex concentrate (PCC). Our aim was to compare case fatality with different reversal strategies. METHODS: We pooled individual ICH patient data from 16 stroke registries in 9 countries (n = 10 282), of whom 1,797 (17%) were on VKA. After excluding 250 patients with international normalized ratio < 1.3 and/or missing data required for analysis, we compared all-cause 30-day case fatality using Cox regression. RESULTS: We included 1,547 patients treated with FFP (n = 377, 24%), PCC (n = 585, 38%), both (n = 131, 9%), or neither (n = 454, 29%). The crude case fatality and adjusted hazard ratio (HR) were highest with no reversal (61.7%, HR = 2.540, 95% confidence interval CI = 1.784-3.616, p < 0.001), followed by FFP alone (45.6%, HR = 1.344, 95% CI = 0.934-1.934, p = 0.112), then PCC alone (37.3%, HR = 1.445, 95% CI = 1.014-2.058, p = 0.041), compared to reversal with both FFP and PCC (27.8%, reference). Outcomes with PCC versus FFP were similar (HR = 1.075, 95% CI = 0.874-1.323, p = 0.492); 4-factor PCC (n = 441) was associated with higher case fatality compared to 3-factor PCC (n = 144, HR = 1.441, 95% CI = 1.041-1.995, p = 0.027). INTERPRETATION: The combination of FFP and PCC might be associated with the lowest case fatality in reversal of VKA-ICH, and FFP may be equivalent to PCC. Randomized controlled trials with functional outcomes are needed to establish the most effective treatment.

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Cite This Study

Parry‐Jones et al. (2015) conducted a cohort in intracerebral hemorrhage on vitamin K antagonists (n=1,547). No reversal vs. Combined FFP and PCC was evaluated on all-cause 30-day case fatality (HR 2.540, 95% CI 1.784-3.616, p=<0.001). In patients with VKA-associated intracerebral hemorrhage, no reversal was associated with higher 30-day case fatality compared to combined FFP and PCC (61.7% vs 27.8%; HR 2.540, 95% CI 1.784-3.616).

synapsesocial.com/papers/6a5d237da59a9c8bb7009bc1https://doi.org/10.1002/ana.24416
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