∙ image redaction tool to assist with AI image analysis ∙ Wahbi et al, LMNA-risk VTA calculator ∙ updated UI

∙ BLISTER infection risk score ∙ AHA Hypertrophic Cardiomyopathy Sudden Cardiac Death Risk calculator ∙ misc. bug fixes

∙ algorithm to confirm conduction system capture with LBBAP ∙ myPace personalized heart rate calculator ∙ aortic cusp anatomy/electrogram guide ∙ 2023 guideline for the diagnosis and management of atrial fibrillation ∙ misc. bug fixes

∙ updated P-Wave Morphology in Focal Atrial Tachycardia localization algorithm (Kistler et al 2021) ∙ simplified topographic algorithm for accessory path localization from 12-lead ECG (Crinion et al) ∙ 5 year risk of life threatening arrhythmia in LQTS (Mazzanti et al) ∙ VT/SVT differentiation tool (Moccetti et al) ∙ idiopathic TV/PVC localization (Enriquez et al) ∙ differentiate right versus left outflow tract VT/PVC location (Efremidis et al) ∙ misc. bug fixes

∙ ZAQ score calculator, predict presence and extent of left atrial low-voltage zones in AF (D'Ambrosio et al) ∙ Accessory pathway localization focused on screening septal pathways in pediatric patients (Baek et al) ∙ V₂QRSI40 guide to predict accurate localization of outflow tract ventricular arrhythmias (Xia et al) ∙ bug fixes (including calculator issue in dark mode)

Fixed crash in Idiopathic VT/PVC Localization (Park et al.) Recap of new features from version 3.8: ∙ PADIT Infection Risk Score calculator ∙ Suspicious Index In Lyme Carditis (SILC) score calculator ∙ Diagnosis and treatment of Lyme Carditis algorithm ∙ Ischemic VT localization algorithm (Andreu et al.) ∙ ventricular arrhythmia prediction in ARVD/C (Cadrin-Tourigny et al.) ∙ ABC-VT risk score for frequent PVCs (Voskoboinik et al.) ∙ Pediatric accessory pathway localization (Li et al.) ∙ Adult accessory pathway localization (Pambrun et al.)

∙ PADIT Infection Risk Score calculator  ∙ Suspicious Index In Lyme Carditis (SILC) score calculator  ∙ diagnosis and treatment of Lyme Carditis algorithm ∙ ischemic VT localization algorithm (Andreu et al.) ∙ ventricular arrhythmia prediction in ARVD/C (Cadrin-Tourigny et al.) ∙ ABC-VT risk score for frequent PVCs (Voskoboinik et al.) ∙ pediatric accessory pathway localization (Li et al.) ∙ adult accessory pathway localization (Pambrun et al.) ∙ bug fixes

∙ differentiate WPW from Fasiculoventricular fibers using 12 lead ECG features ∙ another calculator to correct QTc in LBBB ∙ differentiate RVOT from LVOT cusp or endocardium sites with R-wave amplitude guide ∙ bug fixes

Bug fixes

• CIED surgical planner, create and share specific plans to help manage device/electrocautery interactions during surgery. • Shanghai Score calculator to estimate the probability of Brugada Syndrome • new His bundle pacing references (including Huang Technique!) • misc. bug fixes and corrections.

Bug fixes

Bug fixes

• select tools to include in favorites list for easier access. • corrected typo in SAECG normal values.

• His bundle pacing resources • SAECG (signal-averaged ECG) normal values • predict acute hemodynamic decompensation following VT ablation • direct oral anticoagulant dosing guide (Fontana et al)

Included in update 3.41: • added search bar to easily find specific items from over 50 tools. • fixed bug that caused app to crash when using the save path to image feature.

Included in update 3.4: • J-wave syndrome reference (Antzelevich et al) • preexcitation variant diagnosis algorithm (Ali et al) • entrainment site identification reference (Stevenson et al) • accessory pathway localization algorithm (D'Avila et al) • Body Mass Index (BMI) calculator • added reset buttons for ATRIA, CHADS₂ and CHA₂DS₂VASc calculators. • corrected error in Miyazaki et al.

Minor bug fixes. Included in update 3.3: • preexcitation variant reference • localize macroreentrant atrial tachycardias (Miyazaki et al) • search idiopathic VAs reference by property • animated Daniels et al (tool to differentiate endocardial from epicardial VTs) • miscellaneous bug fixes

• preexcitation variant reference • localize macroreentrant atrial tachycardias (Miyazaki et al) • search idiopathic VAs reference by property • animated Daniels et al (tool to differentiate endocardial from epicardial VTs) • miscellaneous bug fixes

• Bilchick et al, mortality prediction tool ( SHOCKED) for patients undergoing primary prevention ICD placement. • Taguchi et al accessory pathway localization tool based on (Taguchi N et al. A simple algorithm for localizing accessory pathways in patients with Wolff-Parkinson-White syndrome using only the R/S ratio. J Arrhythmia, vol 30, pp 439-443, 2014). • Added negative value option for P to reference value in De Ponti et al atrial tachycardia isthmus map creation tool. • Added recommendations for results in 5 year SCD risk in Hypertrophic Cardiomyopathy tool based on 2014 ESC Guidelines on diagnosis and management of hypertrophic cardiomyopathy. • Added Hodges QT correction formula • Added additional guideline access

- DR-FLASH calculator to predict prevalence left atrial arrhythmogenic substrate (LVAs) and AF free survival following pulmonary vein isolation (Kosiuk J et al.Prospective, multicenter validation of a clinical risk score for left atrial arrhythmogenic substrate based on voltage analysis: DR-FLASH score. Heart Rhythm 12:2207-2212, 2015.) - Tool to determine 30-day all-cause mortality after transvenous pacemaker and defibrillator lead extraction (Brunner M et al. Nomogram for predicting 30-day all-cause mortality after transvenous pacemaker and defibrillator lead extraction. Heart Rhythm, vol 12 pp. 2381-2386, 2015). - Clinical guideline and consensus statement resource - HAS-BLED bleeding risk calculator - Cockcroft Gault creatinine clearance calculator - What's New section to easily discover new content - minor bug fixes

This update fixes an issue that caused epTools to crash while launching tools on iPad running iOS 9 or later. As of version 3.0, epTools is now a paid app and no longer displays advertisements. All early adopters who have already downloaded epTools for free are grandfathered in, free of charge. Thank you for all of your support and feedback. We promise to continue adding more features to the app and your feedback is one of our most valuable sources. Please continue to share your feedback and feature requests via the feedback option within the app.

-added the ATRIA stroke risk calculator. -epTools is now a paid app and no longer displays ads, so the in-app purchase option to remove ads has been eliminated.

-Added Kawamura et al algorithm to evaluate RBBB/superior axis morphology idiopathic ventricular tachycardias. -Fixed scrolling issue in outflow tract lateralization tools that prevented access to input fields with smaller iOS screens. -Minor text, reference link and attribution corrections.

A reference of electrocardiographic findings in idiopathic ventricular tachycardia. Atrial fibrillation stroke risk calculators (CHADS₂ and CHA₂DS₂VASc). Heart rate to cycle length interconverter. QT correction for heart rate calculator (Bazett and Fredericia). QT correction for heart rate with LBBB calculator. Atrial tachycardia isthmus map window calculator. Tools to differentiate RVOT from aortic cusp ventricular arrhythmias including V₂S/V₃R, TZ, R/S-wave Amplitude and R-Wave Duration indices. Berruezo criteria to identify epicardial ventricular tachycardia. A new tool to localize idiopathic VT (Park et al). Tool to predict patients with inadequate defibrillation safety margins. Calculator to estimate 5 year sudden cardiac death risk in hypertrophic cardiomyopathy.

Support for iOS 8 Provided approved access to the CredibleMeds® (powered by AZCERT.org) database of drugs. Added CHADS₂ and CHA₂DS₂VASc stroke risk calculators. Users may more easily access scientific reference material cited in the app. Many of the references are available for free or are accessible by subscribers.