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Clinical Notice:OpiCalc is not a substitute for professional clinical judgment. Always verify dosages and guidelines.

OpiCalc Š 2018-2026

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Recent Journal Updates

Drug SafetyJun 2, 2026
Gabapentin and Pregabalin Use in First Trimester of Pregnancy and Risk of Specific Congenital Anomalies: An IMI ConcePTION European Case-Malformed Control Study

Clinical Context

We think this has broad domain relevance to Hakki Formula (Simplified AVA).

British J Clinical PharmacologyMay 28, 2026
British National Formulary Guidance on prescribing in pregnancy: A descriptive cross‐sectional study

Clinical Context

We think this might be relevant to the clinical guidance for Hakki Formula (Simplified AVA).

DiabetologiaMay 26, 2026
Clinical and psychological phenotypes of type 1 diabetes and disordered eating derived from a case vignette series: T1DE phenotypes

Clinical Context

We think this has broad domain relevance to Hakki Formula (Simplified AVA).

Hakki Formula

Hakki Formula: A simplified calculation for Aortic Valve Area (AVA) used primarily in the cardiac catheterization lab as an alternative to the Gorlin equation.

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Quick estimation of Aortic Valve Area (AVA) during cardiac catheterization.
As a bed-side or "sanity-check" calculation to verify more complex Gorlin equation results.
In patients with standard heart rates (60–100 bpm) where more complex time-averaging constant is unnecessary.

Last Comprehensive Review: 2026

Guidelines & Evidence

Verified

Last Review: 2026

When to Use

When to Use

Quick estimation of Aortic Valve Area (AVA) during cardiac catheterization.
As a bed-side or "sanity-check" calculation to verify more complex Gorlin equation results.
In patients with standard heart rates (60–100 bpm) where more complex time-averaging constant is unnecessary.

Last Comprehensive Review: 2026

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