Jonathan Ariyaratnam

Cardiac Electrophysiology Fellow, Centre for Heart Rhythm Disorders | University of Adelaide | Royal Adelaide Hospital

[Jonathan Ariyaratnam @JonathanAriya]

Thank you to the @heartfoundation for their award of a post-doctoral fellowship to support my ongoing research @UniofAdelaide.

As ever, I am grateful to @PrashSanders and @Elliott_AD for their continued mentorship. #CHRD

https://t.co/7DjFcoBOy8

[Prash Sanders @PrashSanders]

Full house at the inaugural @HRSonline and @thecsanz summit in Australia

[Prash Sanders @PrashSanders]

Strong work by the exercise physiology team of #CHRD

@UniofAdelaide

[Takanori Yamaguchi @tayamagu]

@PrashSanders @APHRSOfficial @UniofAdelaide @Elliott_AD @melissaemm1 @JonathanAriya @HRSonline @thecsanz @Emami_EP @Dominik_Linz @arnelasaljic @martinkstiles @Kadhimad Thank you so much for visiting Saga and for the inspiring discussions.
We are excited to establish our collaboration on #AtrialCardiomyopathy and explore new research directions together.
#Atrialbiopsy #SagaUniversity

[Prash Sanders @PrashSanders]

Amazing post #APHRS2025 @APHRSOfficial visit to Saga to establish collaborations with @tayamagu and team

Looking forward to learning more on #AtrialCardiomyopathy together

Thank you for your hospitality

#CHRD @UniofAdelaide

[Alessandra Pina @Alessandrapina_]

APHRS 2025 is over and been amazing 🇯🇵
8 oral presentations, 6 posters and 2 LBCTs for the #CHRD Team 🎖️

And what about a squid that is so fresh it escapes from the plate? 🦑

@UniofAdelaide

[Prash Sanders @PrashSanders]

@JonathanAriya @heartfoundation @UniofAdelaide @Elliott_AD #Legend so proud of you - we will watch you make a difference to so many lives. Congratulations

#CHRD @UniofAdelaide

[Prash Sanders @PrashSanders]

#APHRS2025 @APHRSOfficial

Always great to catch up with the team - current and past fellows of #CHRD @UniofAdelaide

Japan was great, multiple presentations, 2 late breaking presentations and simultaneous publication

@martinkstiles @HuiNam_Pak

[Elnaz Shahmohamadi، M.D. @ElnazShmohamadi]

Kicking off #APHRS2025 with an insightful session on “What is the best treatment for arrhythmias in patients with heart failure?”

Fantastic presentation by CHRD member @JonathanAriya unpacking how AF intersects with HFrEF and HFpEF.

#chrd @UniofAdelaide @PrashSanders

[Chris X Wong @WongChrisX]

On behalf of senior author @gregorymmarcus and trial team:

Honored to present the late-breaking clinical trial DECAF at #AHA25 today

In contrast to conventional wisdom, coffee ☕️resulted in less AF #afib compared to abstinence!

#SimPub @JAMA_current

https://t.co/26K8Rn6jfU

[Jonathan Ariyaratnam @JonathanAriya]

Longer AF ablation waiting lists are resulting in poorer ablation outcomes BUT obtaining and maintaining sinus rhythm during the wait time could help. New data from @BlackpoolHosp

@AArujuna @DrScottGall @PrashSanders

[HeartRhythm @hrs_journal]

The Impact of Prolonged Waiting List Times for Ablation of Atrial Fibrillation on Arrhythmia Recurrence Post-Ablation

@JonathanAriya

https://t.co/aPPtbRRbeO

[HeartRhythm @hrs_journal]

The Impact of Prolonged Waiting List Times for Ablation of Atrial Fibrillation on Arrhythmia Recurrence Post-Ablation

@JonathanAriya

https://t.co/aPPtbRRbeO

[Prash Sanders @PrashSanders]

#ARREST-AF RCT

#LRFM after #AFib ablation improves maintenance of sinus rhythm

@UniofAdelaide #CHRD

@Elliott_AD @melissaemm1 @Dominik_Linz @JonathanAriya @Dr_VarunMalik @DH_Lau @JNoubiap

[Prash Sanders @PrashSanders]

🚨 New from #CHRD in JACC EP:

Obesity presents a unique phenotype of HFpEF

In AF patients, obesity & ↑ epicardial adipose tissue drive higher atrial pressures, pericardial restraint & greater prevalence of HFpEF

Targeting weight loss may improve symptoms & reduce HF risk.

https://t.co/DFNsgWSOVS

@JonathanAriya @UniofAdelaide

[Jenelle Dziano @JenelleDziano]

Obesity is a major driver of AFib.

Our latest review in @HeartLungCirc explores the pathophysiological links & how lifestyle & pharmacological therapies may help reduce AF burden.

📄 : https://t.co/X93Jn6jd8s

@Elliott_AD @JonathanAriya @melissaemm1 @PrashSanders

[Prash Sanders @PrashSanders]

Looking forward to presenting the CAAN-AF study as a Late-Breaking Clinical Trials: recent advances in CIED therapies at #ESC2025 @escardio

Link to methodology paper:
DOI: 10.1016/j.hroo.2025.07.018

@UniofAdelaide #CHRD
@nhmrc

[Prash Sanders @PrashSanders]

@JonathanAriya shows that many AF ablation patients have subclinical HFpEF — elevated filling pressures, impaired reserve, yet no ‘diagnosis.’
If it’s there and it matters, shouldn’t we be treating HFpEF while we ablate? 🔥❤️‍🩹 #AFib #HFpEF #CSANZ2025

[Prash Sanders @PrashSanders]

HFpEF + AFib = a toxic duo. @JonathanAriya work shows AF isn’t just a bystander — it worsens haemodynamics, drives symptoms, and fuels hospitalisations.
If AF is part of the problem, shouldn’t ablation be part of the solution? 🔥❤️‍🩹 #AFib #HFpEF

#CSANZ2025

[Prash Sanders @PrashSanders]

🚨 New study out now!
Can your pacing lead handle a hypertrophied septum? We developed an ex-vivo ovine model to test Stylet Driven vs Lumen Less Leads in thick septa.
🧠 SDLs went deeper, faster, and with less torque.
📄 https://t.co/JAEPK1qR9v
#EPeeps #LBBAP #CardioTwitter #HeartRhythm

#CHRD @UniofAdelaide @HRSonline

[Jenelle Dziano @JenelleDziano]

Not all symptoms are equal‼️

@JonathanAriya outlining the significance of Exertional Symptoms 🗣️ in the LAST-AF cohort.

Another piece in the puzzle for EARLIER detection of HFpEF in patients with AF #HRS2025 #CHRD