congestive heart failure - dr. g. drobot
TRANSCRIPT
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Congestive Heart Failure:(Not for the) Weak of Heart: Access
Glen Drobot, MD, FRCPC
Assistant Professor, Department of Internal Medicine, University of Manitoba & St. Boniface General Hospital
Co-director & consultant WRHA Heart Failure Clinic
Annual Scientific Assembly 2006,
Manitoba College of Family Physicians
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Objectives
• Outline the make-up of the Heart Failure clinic, sited at St. Boniface General Hospital
• Review current access issues– Testing– HF services
• How you can help your patients
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HF Clinic
• Inter-disciplinary clinic based in ACF Medicine• Physicians
– Dr. James Tam– Dr. Glen Drobot– Dr. Patrick Griffin– Soon to be… August 2006 Dr. Shelley Zeiroth
• Nurse clinician: Estrellita Estrella-Holder• Pharmacist ● Dietician• Physical and occupational therapists• Social worker
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HF Clinic
• Currently 2 half-day clinics/week
• Increasing to 3 half-day clinics upon arrival of Dr. Zeiroth
• Waiting list: should be within 4 weeks
• Some ability to prioritize on basis of severity of illness goal is to improve accessibility with increased staffing
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HF Clinic
• Referrals directed to ACF Medicine
• FAX # (204) 233-2157
• Urgent calls: cardiologist on-call
• Inquiries about existing HF clinic patients during the weekdays: (204) 237-2744
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Case: Mr. Y.
• 63-year-old male with DM 2, myocardial infarction 4 years ago– 1 month history of fatigue, increasing
shortness of breath on exertion and some peripheral edema
• Medications– ASA 325 mg OD– Atenolol 25 mg OD– Metformin 750 mg tid
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Case: Mr. Y.
• O/E BP 130/80, HR 90, SaO2 93%
chest: bibasilar crackles
Heart sounds decreased, no (M)
JVP 6 cm, edema to mid-shins
abdomen: unremarkable
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Case: Mr. Y.
• Initial investigations:– CBC– Na, K, Cl, TCO2, urea, creatinine
all normal– glucose 10
– ECG– Chest x-ray
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Case: Mr. Y.
• Large group
• Old inferior MI, LAD, LVH
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Case: Mr. Y.
• Interstitial pulmonary edema, cardiomegaly
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Mr. Y. – what should be done?
• Assess for precipitants of HF– Salt and fluid intake– Non-compliance with medications– Active ischemia– Intercurrent infection
• Determine the type of HF– Systolic vs. diastolic dysfunction– (L) and/or (R) heart failure
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Other Investigations
• Assessment of LV function– Nuclear medicine (MUGA) = weeks– Echocardiography = 6 months
• If no significant valvular pathology suspected, MUGA is a reasonable first test
• Either test will distinguish between preserved LV function (diastolic) vs. systolic dysfunction
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Mr. Y. – what should be done?
• While waiting for investigations…– Treat congestion with loop diuretics to aim for
euvolemia (accept creatinine elevations of 50% above normal baseline, or 30% above mild-moderate creatinine elevation)
– Can start ACE-I, even if ends up having diastolic dysfunction (likely has HTN)
• Is there isolated (R) HF? If so, do pulmonary investigations as well.
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Facilitating Consultations
• Detailed history and last physical exam
• Current list of medications
• ECG, CXR
• Echo or MUGA result, or date for test
• Basic BW
• Main reason for consult: stabilization, further work-up of cardiac problems, consideration for biventricular pacing
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Questions about Device Therapy
• Implantable cardioverter-defibrillators– Still go through arrhythmia service
• Biventricular pacemakers for cardiac resynchronization– Wide QRS, >140 msec– EF < 35%– Persistent class III-IV symptoms– Screened by HF clinic, we do special echo
looking for inter-/intra-ventricular asynchrony
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Questions
“Big Buddha”, Koh Samui, Thailand