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June 21, 2012 Balderama-Mendieta. OBJECTIVES. Identify pertinent findings from the history and physical examination that would contribute to the diagnosis of peripartum cardiomyopathy Provide a systematic approach in diagnosing patients with peripartum cardiomyopathy
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June 21, 2012 Balderama-Mendieta
OBJECTIVES • Identify pertinent findings from the history and physical examination that would contribute to the diagnosis of peripartumcardiomyopathy • Provide a systematic approach in diagnosing patients with peripartumcardiomyopathy • Determine supportive diagnostic examinations • Arrive at a definitive diagnosis • Learn how to conservatively manage patients with peripartumcardiomyopathy
Patient Profile • JT • 32 year-old , Female • Single, Filipino, Roman Catholic • From Quezon City • Admitted for the 1st time at our institution on November 30, 2011
Patient Profile • Merchandiser • Denies intake of alcoholic beverages • Denies smoking and taking illicit drugs
Patient Profile • Rents the 1st floor of a 4-storey studio type apartment • Sufficient source of water and electricity in the neighbourhood • Garbage collected twice a week
Chief Complaint • Difficulty of breathing of 6 days duration Source and Reliability • The patient herself with fair (70%) reliability
Past Medical History • Unremarkable
Maternal History • Menstrual History • Menarche at 16 y/o, regular, 28-day cycle, 3 days duration, moderately soaked, 3 pads per day, no dysmenorrhea • Obstetrical History: G2P1 (1011) • G1- 2004, Spontaneous abortion • G2- 2011, LFT male via NSD, delivered at a lying-in-clinic by a mid-wife, the patient had regular pre-natal check-up
Gynecologic History • History of pelvic infection, UTI at 16 3/7 weeks AOG of G2 (treated with Cefuroxime 500 mg/tab BID, resolved) • Sexual History • Coitarche at 23 y/o, 2 SP, no post coital bleeding or dyspareunia • Contraceptives History • None
Family History • Hypertension, CVD, and asthma – paternal and maternal sides
Salient Features • 32-year-old female • Recently delivered a full term baby boy • Difficulty of breathing • Orthopnea • Paroxysmal nocturnal dyspnea • Easy fatigability • Bipedal edema
Salient Features • In cardiorespiratory distress • BP 130/90; HR 109bpm; RR 34 bpm • BMI: 19.5 • Distended neck veins • Dullness noted on both lower lung fields • Decrease vocal fremitus on both lateral fields Euthyroid In cardiorespiratory distress BP 130/90; HR 109bpm; RR 25bpm BMI: 19.5 Distended neck veins Subcostal retractions Dullness noted on both lower lung fields
Salient Features • Decrease breath sounds on both lower lung field • Noted with bibasalcrackles • Tachycardic • Irregular rhythm • Grade 2 bipedal edema Euthyroid In cardiorespiratory distress BP 130/90; HR 109bpm; RR 25bpm BMI: 19.5 Distended neck veins Subcostal retractions Dullness noted on both lower lung fields
Congestive heart failure probably secondary to peripartum cardiomyopathy r/o pneumonia, severe pre-eclampsia
Salient features of: • 32-year-old female • Recently delivered a full term baby boy • Difficulty of breathing • Orthopnea • Paroxysmal nocturnal dyspnea • Easy fatigability • Bipedal edema
Salient features of: • In cardiorespiratory distress • Distended neck veins • Dullness noted on both lower lung fields • Decrease vocal fremitus on both lateral fields
Salient features of: • Decrease breath sounds on both lower lung field • Noted with bibasal crackles • Tachycardic • Irregular rhythm • Grade 2 bipedal edema :
Chest Xray of:
Framingham Criteria of: MAJOR • Paroxysmal nocturnal dyspnea • Neck vein distention • Rales • Radiographic cardiomegaly • Acute pulmonary edema • S3 gallop • Increased central venous pressure (>16 cm H2O at right atrium) • Hepatojugularreflux • Weight loss >4.5 kg in 5 days in response to treatment MINOR • Bilateral ankle edema • Nocturnal cough • Dyspnea on ordinary exertion • Hepatomegaly • Pleural effusion • Decrease in vital capacity by one third from maximum recorded • Tachycardia (heart rate>120 beats/min.)
Epidemiology of: • 4% of all cardiomyopathies • Incidence: • Geographic variations exist • 1 in 500–4000 in the USA • 1 in 1000 in South Africa • 1 in 300 in Haiti
Epidemiology of: • CDC Pregnancy Related Mortality Surveillance 1991-1999 • Leading Causes of Maternal Mortality: • Embolism – 20% • Hemorrhage – 17% • Hypertension – 16% • Peripartum Cardiomyopathy- 9%*
Epidemiology of: • 78% present within the first 4 months postpartum • Only 9% may present in the last month of pregnancy
Etiology of: • Etiology of this disorder is unclear. • Proposed mechanisms: • nutritional deficiencies • genetic disorders • viral or autoimmune etiologies • hormonal problems • volume overload • alcohol • physiologic stress of pregnancy • unmasking of latent idiopathic dilated cardiomyopathy
Clinical Presentations • Third heart sound (S3): 92% • Fourth heart sound (S4) • Tricuspid or mitral insufficiency murmurs: 43% • Displaced apical impulse: 72% • Edema • Rales • Ascites • Hepatomegaly • Jugular venous distension
Diagnostics • Electrocardiogram or • β-type Natriuretic Peptide and • Cardiac Imaging: • Echocardiography • Cardiac MRI
PPCM ECG LVH: 66% NSSTTWC: 96%
BNP • As a result of elevated LV end-diastolic pressure due to systolic dysfunction, patients with PPCM commonly have an increased plasma concentration of B-type natriuretic peptide (BNP) or N-terminal pro-BNP (NT-proBNP). • 38 patients with PPCM were compared with 21 healthy mothers post-partum: • PPCM mothers: all had abnormal NT-proBNP plasma levels (mean 1727.2 fmol/mL) • Healthy mothers: mean 339.5 fmol/mL • P < 0.0001