1 week old, s/p Arterial Switch Operation. 6 hrs postop.
Clue: Arterial trace gives it away.
Some images worth learning from are posted here (Note: Most of them are plagiarised. But, sources are referenced)
12/29/2011
Narrow Complex Tachycardia/SVT - 3 types of responses to Adenosine
Response 1 - Adenosine terminates SVT to sinus rhythm
Response 2 - Adenosine terminates SVT to sinus rhythm; but, SVT returns
Response 3 - Adenosine decreases ventricular response, enabling the correct diagnosis of Atrial Flutter (This narrow complex tachycardia was not SVT)
Thus, if Adenosine does not treat it. It helps to uncover the correct diagnosis! It is important to record EKG strip during Adenosine administration so that the type of response can be carefully analyzed and documented.
Response 2 - Adenosine terminates SVT to sinus rhythm; but, SVT returns
Response 3 - Adenosine decreases ventricular response, enabling the correct diagnosis of Atrial Flutter (This narrow complex tachycardia was not SVT)
Thus, if Adenosine does not treat it. It helps to uncover the correct diagnosis! It is important to record EKG strip during Adenosine administration so that the type of response can be carefully analyzed and documented.
Labels:
Arrhythmia,
EKG,
EP,
Interpret this,
Medications,
Quiz,
SVT
12/24/2011
EKG - Interpret this
12/12/2011
EKG: Dextrocardia
12/06/2011
12/05/2011
12/04/2011
Anatomy: Left Aortic Arch with Right Descending Aorta
Left Aortic Arch with Right Descending Aorta: Possible type
(From Esophagography in anomalies of the aortic arch system by A.C. Klinkhamer. 1969. Williams & Wilkins Company, Baltimore, MD)
See related posting
(From Esophagography in anomalies of the aortic arch system by A.C. Klinkhamer. 1969. Williams & Wilkins Company, Baltimore, MD)
See related posting
Labels:
Anatomy,
Aortic Arch,
Vascular Anomaly,
Vascular ring
12/02/2011
Vascular Ring - General Rules
From Moss & Adams(Vol. 1) 7th ed. 2008.
Chapter: Aortic Arch Anomalies by Dr. Paul Weinberg.
1) Arch sidedness: Retroesophageal or Isolated vessel always is the vessel on opposite side from the arch.
2) Vascular Ring: Easier to recognize the existence of vascular ring if all components of the ring are patent. The following rule is helpful when the ring is completed by an atretic ligament on one side i.e. Presence of one of the 3 Ds on the opposite side from the aortic arch indicates presence of a vascular ring. (3Ds are Diverticulum, Dimple or Descending aorta).
Chapter: Aortic Arch Anomalies by Dr. Paul Weinberg.
1) Arch sidedness: Retroesophageal or Isolated vessel always is the vessel on opposite side from the arch.
2) Vascular Ring: Easier to recognize the existence of vascular ring if all components of the ring are patent. The following rule is helpful when the ring is completed by an atretic ligament on one side i.e. Presence of one of the 3 Ds on the opposite side from the aortic arch indicates presence of a vascular ring. (3Ds are Diverticulum, Dimple or Descending aorta).
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