Here’s the conclusion to the January 2011 EMS 12-Lead column “Not So Fast…” at EMS1.com.
Congratulations to Vince DiGiulio for submitting the winning diagnosis!
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Ken Grauer, MD
Understanding ECG Filtering
Great review. Am I correct that since the common frequency for the P wave = 0.67-5 Hz — that IF the HIGH-pass filter is set at 0.5 instead of 0.05 — that because of the possibility of “phase shift” — that inscription of P waves may be suboptimal (and that this may therefore make assessment…
2019-07-25 16:46:38
Understanding ECG Filtering
Great review. Am I correct that since the common frequency for the P wave = 0.67-5 Hz — that IF the HIGH-pass filter is set at 0.5 instead of 0.05 — that because of the possibility of “phase shift” — that inscription of P waves may be suboptimal (and that this may therefore make assessment…
2019-07-25 16:46:38
Eric
80 Year Old Female: “Rapid Heart Rate”
Atrial tach, 2nd degree type 1 av block. Supportive care until er workup.
2019-07-24 16:55:58
80 Year Old Female: “Rapid Heart Rate”
Atrial tach, 2nd degree type 1 av block. Supportive care until er workup.
2019-07-24 16:55:58
kevin
80 Year Old Female: “Rapid Heart Rate”
RBBB - I.V., serial 12-leads, oxygen-etco2, position semi-fowlers, bilateral BP, patch EP for consultation if transport is 30 minutes.
2019-02-25 01:16:26
80 Year Old Female: “Rapid Heart Rate”
RBBB - I.V., serial 12-leads, oxygen-etco2, position semi-fowlers, bilateral BP, patch EP for consultation if transport is 30 minutes.
2019-02-25 01:16:26
Goran
80 Year Old Female: “Rapid Heart Rate”
No sinus rythm,but rather atrial flutter with Mobitz type 1 - Wenkebach phenomen
2019-02-20 15:29:04
80 Year Old Female: “Rapid Heart Rate”
No sinus rythm,but rather atrial flutter with Mobitz type 1 - Wenkebach phenomen
2019-02-20 15:29:04
Goran
80 Year Old Female: “Rapid Heart Rate”
It is regularly irregular rythm.It seems like Mobitz type 1 - Wenkebach ,secondary to sinus tachycardia.It is visible P wave in V1 lead.We should find primary cause of sinus tachycardia?
2019-02-20 15:17:14
80 Year Old Female: “Rapid Heart Rate”
It is regularly irregular rythm.It seems like Mobitz type 1 - Wenkebach ,secondary to sinus tachycardia.It is visible P wave in V1 lead.We should find primary cause of sinus tachycardia?
2019-02-20 15:17:14
2 Comments
Strong work VinceD! I didn’t follow through on my PAC comment, and missed the obvious VT analogue “fusion complex”. Down at the bottom of the rhythm strip you can see the axis change fairly clearly.
Thanks! I didn’t even notice the upright complex in III through all the baseline movement either, I just blew off those areas of II and III as useless at the time and moved on. I was pushing things a bit by calling it a fusion beat based off the narrower R-wave without that much more conclusive evidence, nice find.