of the Month - STA HealthCare Communications

ECG
of the Month
By Martin S. Green, MD, FRCPC
University of
Ottawa Heart Institute
K-Light
A 70-year-old woman presents with weakness. She had been on blood pressure pills. Her ECG
is shown below.
What is the diagnosis?
Perspectives in Cardiology / June/July 2003 17
ECG
of the Month
University of
Ottawa Heart Institute
This Month’s ECG Diagnosis
The presence of gigantic U waves, especially when they are larger than the low flat T wave,
is strongly suggestive of a metabolic abnormality, such as hypokalemia. In this particular case,
the patient had been on long-term diuretic therapy and presented to the emergency room with
potassium of 1.8 mmol/L. The patient had
potassium supplementation and discontinuation
of the diuretic therapy following which, the
ECG returned to normal. PCard
This ECG shows sinus rhythm at a rate of
about 72 beats/minute. Of note, there is normal conduction. The QRS is normal. There
are marked abnormalities of repolarization.
There is a giant U wave which merges with
the T wave so that in leads II and aVF and lead
V6, it appears to be a very long QT interval.
In the mid-precordial leads, however, one can
see that the U wave is in fact larger than the T
wave (best seen in lead V5) and that the QT
interval is not so much prolonged as a T wave
merging with a gigantic U wave.
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Mai 2003
LA REVUE DE FORMATION MÉDICALE CONTINUE
Volume 18, numéro 5
Volume 19, No. 5
May 2003
May 2003
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Articles
May 2003
Volume 15, Number 5
81
In this issue: Focus on CME at
Queen’s
33
The Limiting Factor:
Hypoglycemia & Diabetes
Dr. Vincent Woo
University
49
92
Dr. David Hogan
La fibromyalgie
Du doute
aux découvertes
Articles
88
The Overactive Bladder
99
A Pain in The Ankle:
How to Assess
97
Thomas Woods; Dr. James Leone; Dr. Beate Hanson; and
Dr. Mohit Bhandari
Picking the Perfect Pill:
Choosing Oral Contraceptives
5 questions et réponses sur l’herpès
génital
Atrial Fibrillation in
Clinical Practice
Indranill Basu Ray, MBBS, MD, DNB
44 Staying on the attack
Quels sont les risques de
l’insuffisance rénale chronique?
Getting to Transient Ischemic
attacks early
Dr Daniel Froment
107
Departments
Keeping Up
The Pace
Dr Harold Dion
Dre Monique Camerlain
The Constant Urge to Go:
Marshall Godwin, MD, BMedSc, MSc, FCFP
63
75
What’s New in Dementia?
Attention aux morsures animales!
Vanessa Palumbo, MD; Alastair M. Buchan, MB,
FRCPC; and Michael D. Hill, MD, FRCPC
Dr Karl Weiss, Dre Élaine Martel et Dr Benoit Monfette
Susan Chamberlain, MD, FRCSC
71
How Can We Fight Insulin
Resistance in PCOS?
What’s Old is New:
91
Skin Deep:
101
110
121
115
Common Signs,
Uncommon Disease
75
Case In Point
Update on Sexually Transmitted Infections
33
Managing Cellulitis, Erysipelas, & more
How Do We Investigate Dyspepsia?
Manipulating Hormones:
Androgen Suppression
in Prostate Cancer
Patients
Catching the
Mole that
Kills
“What Happened? Did I Faint?”
Case of the Month
21
R. Hugh Gorwill, MD, FRCSC
80
1
Does C-Reactive Protein
Predict Inducible Ischemia?
Update
110
No More
Sleepless Nights
17
Coup d’œil sur le SRAS — SPÉCIAL!
39
L’homéostase en criant ciseau!
53
Les controverses dans le dépistage
du cancer du sein
Dr. Valerie Kirk
Medical Briefs
1 Heart Disease in Women:
A look at some major studies
Cardiovascular Reporter
In association with the
Hamilton Health Science Corporation
Rubriques
Looking at Obstructive
Sleep Apnea
“Can Sunscreen
Irritate My Skin?”
Comment préparer sa retraite?
Dr Patrick Lapierre et Dre Suzie Lévesque
14 Treatment Post-Myocardial Infarction
CardioCase of the Month
Trucs du métier
Dalhousie University
CME Credit Quiz
Peter Hum, BSc, MD, CCFP
19 The Great Escape
Les soins au féminin
123
Quoi de neuf dans le traitement de la MPOC?
Le pharmascope
New!
Win a Trip
32
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