C10026682 / invoice 10000

13/03/2026 Heart Rate - 100 very irregular 

13/03/2026 See recent history from MIR/SB
Booked in for echo and ECG today & to send report/ECG results to Geoff Nicholson

Previous assessment: Arrhythmia, possibly benign but highly recommend  investigation given breed predisposition.
- Differential diagnosis: Boxer ARVC (Boxer Cardiomyopathy) vs. benign vs. other.

ECG readings taken (multiple leads). Scanned

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Cardiac ultrasound
M mode / 2D measurements (mm)
B mode
- no chamber enlargement noted (LA:Ao ratio 1.26:1)
- no obvious myocardial disease seen. No LV eccentric hypertrophy noted (LVIDDN < 1.7)
- no arrhythmia noted throughout scan
- no IAS or IVS deviation noted
- TAPSE 19.9mm
- no thoracic / cranial mediastinal mass seen
- no pericardial or pleural fluid noted

Spectral/Colour Doppler
- max Ao velocity 2.20m/s (upper limit of normal)
- Max PA velocity 1.19m/s
- no MR or TR noted

Weight 28.9 LA (SAX) 24 E wave 0.87
IVSd 9.1 Aorta 19 A wave 0.71
LVOTd LA:Ao ratio (SAX) 1.26 E:A ratio 1.23
LVIDd 38.6 LVIDDN 1.34 EDT 120.00
LVFWd 9.6 LAd (LAX) 38.20 IVRT 70.00
LVIDs 22.8 LAd (LAX) norm. 1.32 E:IVRT 1.24
FS% 41 Ao (LAX) 15.10 E’ 0.12
FAC% 53 LA:Ao ratio (LAX) 2.53 E:E’ 7.25
EF (M mode) 72 LA vol (LAX) LVIDd:Ao ratio 2.03
EF (SMOD) 83 LA vol/kg 0.00

Conclusions (SM)
No arrhythmia noted throughout scan and essentially normal scan with no structural changes noted - good FS, FAC and TAPSE

Dr Sean Muir
BVSc (Hons), Graduate Diploma Medical ultrasound

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Both ECG and Echo report sent to Geoff Nicholson as per MIR plan
Geoff to advise whether any further investigation required such as ECG 24hr Holter etc.