• Our Team
  • GP Symposium 2025
  • GP Heart Blog
  • Patient Info
  • New patient form
  • Contact
Menu

Cardiology Institute

Unit 109, 119 Apollo Drive, Albany, Auckland
consult@cardiologist.co.nz
P: xxx-xxxx; F xxx-xxxx
Unit 109, 119 Apollo Drive, Albany, Auckland. P: 000-0000. F: 000-0000. consult@cardiologist.co.nz. EDI: cardinst

T 09-980-6363. M 022-672-8255. F 09-929-3248. consult@cardiologist.co.nz. EDI: CARDINST

North Shore - Suite 109, Level 1, 119 Apollo Drive, Albany

Silverdale - Northern Specialist Centre @Beyond; 5 Painton Road, Silverdale.

Central Auckland - 110 Specialist Centre @ Beyond;v110 Grafton Road, Grafton

East Auckland - East Care Specialist Centre, 260 Botany Road, Howick, Manukau

Cardiology Institute

  • Our Team
  • GP Symposium 2025
  • GP Heart Blog
  • Patient Info
  • New patient form
  • Contact

QT interval

February 12, 2022 Andrew To

We are often asked about how best to calculate the QT interval. This is the simplest way.

  • Use leads II, V5

  • Count the number of small boxes for the QT

  • Note heart rate

Use this website, and put in the two numbers, to get QTc

In Cardiac Investigations, ECG Case Tags ECG, QT interval

Arrhythmia in general practice

February 12, 2022 Andrew To

Most Patient would be asymptomatic when presented to the GP Practice. Hence ECG performed at the time would not normally demonstrate arrhythmia

Key is to identify high risk features on ECG

Read more
In Atrial fibrillation, ECG Case Tags Bradycardia, Tachycardia, Brugada

ECG - My Approach

September 7, 2019 Andrew To
Screen+Shot+2019-09-06+at+10.50.58+PM.jpg

ECG interpretation could be difficult, but a simplified approach would serve us well 95% of the time. Here is my approach:

Read more
In ECG Case Tags Bradycardia, Tachycardia, ECG

ECG Case 2016-09

September 4, 2016 Andrew To
ECG black and white.001.jpg

32-year-old man presented with cough, breathlessness on exertion and interscapular pain. His ECG was as below.

- Reassure

- CXR, reassure

- CXR, take a more detailed history, then reassure

- CXR, full history, refer for further assessment

Read more
In ECG Case Tags ECG, Syncope, Wolff-Parkinson-White

Copyright @2024 Cardiology Institute; All photos copyright @2024 Andrew To