Discover and read the best of Twitter Threads about #ekgdx
Most recents (6)
1/ Let’s talk about focal atrial tachycardia #CardioTwitter.
🧵👇 by @ekgdx
#ekgdx #ecg #ekg #MedTwitter #medicine #medstudents #basic #education #graphic
🧵👇 by @ekgdx
#ekgdx #ecg #ekg #MedTwitter #medicine #medstudents #basic #education #graphic
2/ Focal atrial tachycardia is characterized by at least three or more consecutive ectopic P waves with similar morphology, usually arising from a single ectopic focus.
#ekgdx
#ekgdx
3/ Criteria
✅ ≥3 consecutive similar ectopic P waves (usually inverted in inferior leads).
✅ Atrial rate >100 bpm.
✅ QRS usually narrow unless pre-existing BBB or aberrant conduction.
#ekgdx
✅ ≥3 consecutive similar ectopic P waves (usually inverted in inferior leads).
✅ Atrial rate >100 bpm.
✅ QRS usually narrow unless pre-existing BBB or aberrant conduction.
#ekgdx
1/ Let’s talk about the ST segment #CardioTwitter.
ST segment normally represents the interval between ventricular depolarization and repolarization.
Normal ST
✅ Usually isolectric or may vary from 0.5 mm below to 1 mm above isolectric line in L leads.
#ekgdx #Medicine
ST segment normally represents the interval between ventricular depolarization and repolarization.
Normal ST
✅ Usually isolectric or may vary from 0.5 mm below to 1 mm above isolectric line in L leads.
#ekgdx #Medicine
2/ ST elevation (STE)
ST changes suggesting myocardial injury:
✅ New STE ≥1 mm in all leads other than V2 or V3.
✅ New STE in V2-V3 ≥2 mm in men older than 40 years old and ≥2.5 mm in men younger than 40 years old or ≥1.5 mm in women.
#ekgdx #Medstudent #MedTwitter
ST changes suggesting myocardial injury:
✅ New STE ≥1 mm in all leads other than V2 or V3.
✅ New STE in V2-V3 ≥2 mm in men older than 40 years old and ≥2.5 mm in men younger than 40 years old or ≥1.5 mm in women.
#ekgdx #Medstudent #MedTwitter
3/ Types of ST segment elevation include:
✅ Convex Upward (previous pic)
✅ Horizontal (this one)
✅ Concave Upward (see next)
✅ Obliquely Straight (see next)
#ekgdx #st #MedTwitter #ecg #ekg #CardioTwitter #Medstudent
✅ Convex Upward (previous pic)
✅ Horizontal (this one)
✅ Concave Upward (see next)
✅ Obliquely Straight (see next)
#ekgdx #st #MedTwitter #ecg #ekg #CardioTwitter #Medstudent
1/ Let’s talk about PR Interval - Segment #CardioTwitter.
The PR interval represents the time between the onset of atrial depolarization and the onset of ventricular depolarization and reflects conduction through the AV node.
🧵by @ekgdx
The PR interval represents the time between the onset of atrial depolarization and the onset of ventricular depolarization and reflects conduction through the AV node.
🧵by @ekgdx
2/ PR Interval
Criteria
✅ Normal PR interval: 0.12 - 0.20 sec.
✅ Prolonged PR interval: >0.20 sec.
✅ Short PR interval: <0.12 sec.
The term “PQ interval” is preferred by some EKG lover because it is the period actually measured unless the Q wave is absent.
#PR #interval
Criteria
✅ Normal PR interval: 0.12 - 0.20 sec.
✅ Prolonged PR interval: >0.20 sec.
✅ Short PR interval: <0.12 sec.
The term “PQ interval” is preferred by some EKG lover because it is the period actually measured unless the Q wave is absent.
#PR #interval
3/ The PR segment is the segment between the end of the P wave and the start of the QRS complex.
Criteria
✅ Normal PR segment: Usually isolectric.
✅ PR segment elevation: ≥0.5 mm.
PR segment elevation causes: Atrial ischaemia/infarction, myopericarditis, PE, others.
#ekgdx
Criteria
✅ Normal PR segment: Usually isolectric.
✅ PR segment elevation: ≥0.5 mm.
PR segment elevation causes: Atrial ischaemia/infarction, myopericarditis, PE, others.
#ekgdx
1/ Let’s talk about P waves #CardioTwitter.
The P wave is the first positive deflection on the EKG and represents atrial depolarization. The first half represents right atrial depolarization and the second half represents left atrial depolarization.
By @ekgdx
The P wave is the first positive deflection on the EKG and represents atrial depolarization. The first half represents right atrial depolarization and the second half represents left atrial depolarization.
By @ekgdx
2/ Normal P wave
Criteria
✅ Axis: 0° to +75°.
✅ Amplitude (L leads): <2.5 mm.
✅ Amplitude (P leads): <1.5 mm.
✅ Duration: 0.08 - 0.11 sec.
✅ Morphology: Upright in I, II, aVF and inverted in aVR.
#Pwaves #ecg #ekg #ekgdx #medicine #MedTwitter #MedStudentTwitter #basic
Criteria
✅ Axis: 0° to +75°.
✅ Amplitude (L leads): <2.5 mm.
✅ Amplitude (P leads): <1.5 mm.
✅ Duration: 0.08 - 0.11 sec.
✅ Morphology: Upright in I, II, aVF and inverted in aVR.
#Pwaves #ecg #ekg #ekgdx #medicine #MedTwitter #MedStudentTwitter #basic
3/ Peaked P wave
The morphology is peaked with amplitude ≥2.5 mm, usually in II, III and aVF.
The peaked P wave is a typical characteristic of right atrial abnormality/enlargement.
Causes: PE, COPD, congenital heart disease, pulmonary hypertension, normal variant, others.
The morphology is peaked with amplitude ≥2.5 mm, usually in II, III and aVF.
The peaked P wave is a typical characteristic of right atrial abnormality/enlargement.
Causes: PE, COPD, congenital heart disease, pulmonary hypertension, normal variant, others.
Acute pulmonary embolism (PE) is one of the most serious form of venous thromboembolism. The clinical presentation of PE is variable and often nonspecific making the diagnosis challenging.
1/
#CardioTwitter
1/
#CardioTwitter
Criteria
✅ Sinus tachycardia (most common).
✅ S1Q3T3 pattern (may be present up to 30% of cases).
✅ Simultaneous T wave inversions in the inferior leads and right precordial leads can be seen.
✅ Right axis deviation.
✅ RBBB (complete or incomplete).
2/
#MedTwitter #ecg
✅ Sinus tachycardia (most common).
✅ S1Q3T3 pattern (may be present up to 30% of cases).
✅ Simultaneous T wave inversions in the inferior leads and right precordial leads can be seen.
✅ Right axis deviation.
✅ RBBB (complete or incomplete).
2/
#MedTwitter #ecg
1/x
If you have difficulty interpreting an ECG, I will explain the basic method that I use, and I am sure it will help you. It's called the basic "method of Dr. Roig". Here we go..
If you have difficulty interpreting an ECG, I will explain the basic method that I use, and I am sure it will help you. It's called the basic "method of Dr. Roig". Here we go..
2/x
R-ate
The first step is to calculate the HR.
Total QRS x 6 = HR.
If HR > 100 bpm = Tachycardia.
If HR < 60 bpm = Bradycardia.
R-ate
The first step is to calculate the HR.
Total QRS x 6 = HR.
If HR > 100 bpm = Tachycardia.
If HR < 60 bpm = Bradycardia.
3/x
O-bserve the rhythm
The second step is to observe the rhythm.
If R-R interval is equal = Regular rhythm.
If R-R interval varies = Irregular rhythm.
If P wave is upright in lead II = Sinus rhythm.
O-bserve the rhythm
The second step is to observe the rhythm.
If R-R interval is equal = Regular rhythm.
If R-R interval varies = Irregular rhythm.
If P wave is upright in lead II = Sinus rhythm.
