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ECG Blog #434 — WHY Did this Patient Arrest?

Ken Grauer, MD

The above said, when for whatever reason sinus P waves are not well seen in lead II — the 2nd -best lead when looking to determine if sinus rhythm is present, is lead V1. The cause of the abnormal baseline deflections seen in Figure-2 is most likely muscle tremor artifact ( See Bouthillet T — ACLS Med Training, Dec, 2015 ).

EKG/ECG 389
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Superior Mesenteric Artery Syndrome (SMA Syndrome) in Children

Pediatric EM Morsels

Record, 2015) Normal aortomesenteric angle ranges from 28 o to 65 o and the normal distance from 10 to 34 mm. Record, 2015) Nausea and pain are typically post-prandial. Record, 2015). Record, 2015) Secondary findings on imaging including gastric distension and distension of the proximal duodenum. The Oschner Journal.

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The Broselow-Luten System

Pediatric EM Morsels

Taking care of a critically ill child can be nerve-racking to say the least, and downright petrifying for those who don’t do it frequently, even if they are well-trained and brilliant clinicians. Sinha 2012] It is useful in the prehospital setting , correlating well with actual weight and ED Broselow weight. Broselow does not.

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Glasgow Coma Scale in Children

Pediatric EM Morsels

2015 Feb;100(2):207-8. Systematic review showed 85% of studies with substantial reliability with kappa statistic >0.6 Nayana Prabha PC, Nalini P, Tiroumourougane Serane V. Role of Glasgow Coma Scale in pediatric nontraumatic coma. Indian Pediatr. 2003 Jul;40(7):620-5. PMID: 12881617. Biradar, S. Pediatr Crit Care Med. doi: 10.1097/PCC.0000000000001957.

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ECG Blog #415 — The Cath showed NO Occlusion!

Ken Grauer, MD

I’ve taken th e l ead V 3 examples in Figure-3 from previous cases posted on Dr. Smith’s ECG Blog : T OP in Figure-3 — Despite the marked ST elevation in this lead V3 — this is not T-QRS-D, because there is well-defined J-point notching ( BLUE arrow ). This patient had a repolarization variant as the reason for ST elevation. What is M INOCA?

EKG/ECG 411
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IVC Distensibility Index vs Collapsibility Index: Using the Correct Index

RebelEM

Well, the established cutoff for the distensibility index is 18%. Jan 2015; PMID: 25559473 Airapetian N, et al. Nov 2015; PMID: 26563768 Yartsev, Alex. Use M-mode Doppler to acquire information on IVC variability with at least three respiratory cycles. 3 Cutoff CI of 15% has a negative predictive value (NPV) of 100%.

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Fluoroquinolone Use In Children

Pediatric EM Morsels

Binz 2015) Remember, dogs grow 18 times as fast an infant in the first year of life. Binz 2015) More recent lamb studies have been performed, where the growth more closely approximates a human child. Binz 2015). Oral Fluoroquinolone Prescribing to Children in the United States From 2006 to 2015. This myth is: BUSTED-ish.