PDA – Patent Ductus Arteriosus

  • Reading time:3 mins read

Introduction Patent Ductus Arteriosus - PDA – L-to-R shunt – ACYANOTIC Patent ductus arterioles describes the persistence of the connection between the aorta and pulmonary artery. In the foetus, this duct…

Continue Reading PDA – Patent Ductus Arteriosus
Pericarditis
Pericarditis ECG. Note thePR depression - particularly in leads I, II and V2-V6, as well as the dalle shaped ST elevation - most prominent in I, II and V4-V6. This file is taken from wikimedia commons and is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

Pericarditis

  • Reading time:9 mins read

Introduction  Pericarditis is a common cause of chest pain, and may mimic the signs and symptoms of myocardial infarction. It is a result of inflammation of the pericardium.  The two most…

Continue Reading Pericarditis

Physiological Changes of the Heart at Birth

  • Reading time:2 mins read

Fetal circulation The fetus receives blood via the umbilical vein. Once this enters the body, it travels through the liver as the ductus venosus before joining the inferior vena cava.…

Continue Reading Physiological Changes of the Heart at Birth

Postural Hypotension

  • Reading time:2 mins read

Postural hypotension is a transient fall in blood pressure which causes symptoms when a patient moves from sitting or lying to standing. Physiology Moment to moment, blood pressure is controlled…

Continue Reading Postural Hypotension

Stable Angina (Angina Pectoris)

  • Reading time:13 mins read

Introduction Stable angina (aka Angina Pectoris) is a common presentation of Coronary Heart disease - CHD(aka Ischaemic Heart disease - IHD) Stable angina, (aka ‘Angina pectoris’, and colloquially "Angina") is a syndrome…

Continue Reading Stable Angina (Angina Pectoris)

Summary of ECG Abnormalities

  • Reading time:12 mins read

This summary of ECG abnormalities is part of the almostadoctor ECG series. For a more in depth explanation of ECG abnormalities, see ECG abnormalities. To learn about the basic principle of…

Continue Reading Summary of ECG Abnormalities

Supraventricular Tachycardia (SVT)

  • Reading time:3 mins read

The term Supraventricular Tachycardia can be used to refer to any tachycardia arising from above the bundle of His, although in clinical practice it usually refers to an AV node…

Continue Reading Supraventricular Tachycardia (SVT)
Tetralogy of Fallot
Tetralogy of Fallot. This file is taken from wikimedia commons and is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

Tetralogy of Fallot

  • Reading time:2 mins read

Introduction Tetralogy of Fallot – R-to-L shunt – CYANOTIC THE most common cause of cyanotic heart disease – but only accounts for <10% of all congenital cardiac abnormalities Has four…

Continue Reading Tetralogy of Fallot
Understanding ECGs
ECG segments and intervals

Understanding ECGs

  • Reading time:11 mins read

This article "Understanding ECGs" is part of the almostadoctor ECG series. It provides a basic introduction to ECG waveform, and the practicalities of performing an ECG.  Once you understand the basics…

Continue Reading Understanding ECGs
VSD – Ventricular Septal Defect
Ventricule Septal Defect. This file is taken from wikimedia commons and is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

VSD – Ventricular Septal Defect

  • Reading time:6 mins read

Introduction Ventricular septal defects (VSDs) are the most common form of congenital heart disease, and account for about 30% of cases. The term describes a malformation of the ventricular septal…

Continue Reading VSD – Ventricular Septal Defect