0123 0700 broberg thursday am cases final
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Cases to Learn From
Theme: The Atrial Septum
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Case A70 year old woman
Immigrant from Central America
Referred for evaluated of a murmur
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Severely enlarged RV with septal flattening
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No pulmonary valve gradientElevated RVSP
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History6 years ago
Right heart cath showed PAHResponsive to vasodilator therapy. Started macitentan and tadalafil.
Increased fatigue and dyspnea over the last several monthsO2 saturation drops when walking the hallwayNT-BNP 1,500
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History6 years ago
Right heart cath showed PAHResponsive to vasodilator therapy. Started macitentan and tadalafil.
Increased fatigue and dyspnea over the last several monthsO2 saturation drops when walking the hallwayNT-BNP 1,500
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Atrial level shunt? ASD flow masked by TR jet?
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TEE
Large secundum ASD
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Right Heart CathRA 12, RV 60/19 mean 33LV 90/15RA sat 82%, PA sat 84%, Qp:Qs 2.4:1, PVR 4.3 wuWith 100% Fi02 QpQs increased to 4:1
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Questions?Should her defect be closed?
Yes, the PVR is not prohibitive and she still has vasoreactivity
How should it be closed?Surgically
How should she be managed through the procedure?
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Anesthesia Trial RunReferred for surgery; preop planning showed poor dentition
Tooth extraction requiredGeneral anesthesia for tooth extraction
Given O2 for induction, and sedatedVentricular arrhythmia, shocked several timesPulmonary edemaIntubated for 3 days
RV failure or something else? Too sick to undergo surgery?
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ASD PhysiologyUnder-filled LV over timeLeads to worsening diastolic functionDrives more left to right shuntIncreases Qp:QsProblem exacerbated by:
Pulmonary vasodilatorsSupplemental oxygen
LVEDP↑QP↑
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SurgeryMacitentan and tadalafil were stopped
Recognized the risk of high rising LV/LA pressures after defect was closed
Slow induction, on room air to avoid excess pulmonary vasodilation
ASD closed with a fenestrated patch to still allow LàR shunt
Post op recovery was slow, prolonged intubation, needed pacer, but did fine
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Case B56 yo man with mild COPD, 5 days of cough, dyspnea
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Left atrial mass Crossing the mitral valve
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RA mass also Septal Attachment
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OR
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HistoryInitial presentation with saddle pulmonary embolismThrombus transition through PFO probably during heavy coughNo systemic embolic events
Successful urgent surgical thrombectomy and PFO closure
Pathology showed organizing thrombus, no malignancy
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