HEART TRANSPLANTATION MARTIN SUSSMAN MILPARK HOSPITAL ISSUES • Improvements in survival with medical therapy impacted on old indications for HT. • Remain survival and QOL benefits for HF pts despite this • Exercise testing strongly recommended, not routinely performed in JHB – Peak VO2 <12 INDICATIONS • End stage heart failure of any cause – on maximal medical therapy, no alternative therapy, eg revascularisation, valve repair/replacement – ICD 10 codes I 40, I 41, I 42, and I 43 (acute myocarditis of any cause and associated with any other illness or disease, chronic cardiomyopathy of any cause or associated disease or illness) INDICATIONS 2 • A definitive list, incorporating every possible condition is complex, of necessity incomplete, and potentially inappropriately limiting. • The 3 important “safety nets” are – All patients are screened by a multidisciplinary team before being listed – Exclusion criteria are more important – Sickest patients get operated first – majority in ADHF, or multiple recent admissions in HF EXCLUSION CRITERIA • Pulmonary hypertension • Severe co-morbidity not expected to improve with heart transplant –heart/lung, heart kidney/liver? • Malignancy • Malnutrition • Advanced age EXCLUSIONS 2 • Interplay between donor quality and following relative contra-indications to ensure optimal utilisation of scarce resource – Age, DM, PVD, obesity, cancer, renal function – Negative factors are cumulative, but no weighting for each – Role for alternate listing system PULMONARY HYPERTENSION • Right heart catheterisation for all HT candidates – Repeat 3-6 monthly while on waiting list – If PAP >50mm Hg, PVR > 3 Wood units, or TPG > 15 mm Hg, trial of vasodilators, inotropes for 2448 hours, MCS. Irreversible PHT if non responder. – NO ABSOLUTE CUT-OFF, but if PVR remains > 5, TPG > 16, with PAP > 60, mortality is increased – If PVR drops <2.5, but SBP also drops below 85mm Hg, risk is increased MALIGNANCY • Type, curability, recurrence risk. • Ensure no metastatic disease. • No absolute time line, but 5 years is mentioned as arbitrary cut-off DIABETES • Duration • No end-organ damage - NOT C/I, but still worse outcome • With end organ damage – relative to absolute C/I • Hypoglycamia unawareness and autonomic dysfunction increase concern MALNUTRITION • Obesity – BMI > 30 is C/I • Undernutrition – BMI < 21 males, 19 females RENAL FUNCTION • Must decide role of HF – reversibility • Irreversible, with creat > 300, is a strong C/I URGENCY • Acute decompensated heart failure – if BP < 115 mm Hg, urea and creatinine elevated, on inotropes Recommended Schedule for Heart Transplant Evaluation Test Baseline 3 months 6 months 9 months 12 months (and yearly) X X X X X X X X Complete H & P X Follow-up assessment Weight/BMI X Immunocompat ibility ABO X Repeat ABO X HLA tissue typing Only at transplant PRA and flow cytometry X • >10% • VAD Every 1–2 months Every 1–2 months • Transfusion 2 weeks after transfusion and then 9 month × 6 months Evaluation of multi-organ function Routine lab work (BMP, CBC, LFT) X X X X PT/INR More frequent per protocol if on VAD or coumadin X X X X X Urinalysis X X X X X GFR (MDRD quadratic equation) X X X X X Unlimed urine sample for protein excretion X X X X X Preventive and malignancy Stool for occult blood × 3 X Colonoscopy (if indicated or >50 y) X X Mammography (if indicated or >40 X y) X Gyn/Pap (if indicated ≥18 y sexually active) X X PSA and digital rectal exam (men > 50 y) X X Infectious serology and vaccination Hep B surface Ag X Hep B surface Ab X Hep B core Ab X Hep C Ab X HIV X RPR X HSV lgG X CMV lgG X Toxoplasmosis lgG X EBV lgG X Varicella lgG X PPD X Flu shot (q 1 year) X Pneumovax (q 5 years) X Hep B immunizations: 1_2_3_ X Hep B surface Ab (immunity) 6 weeks after third immunization F/U EMB, ANGIOGRAPHY • EMB Biopsy 1, 2, 3, 4, and 5: Biopsy 6, 7, and 8: Biopsy 9 and 10: Biopsy 11, 12, and 13: Subsequent biopsies during the 1st year after HT: • ANGIOGRAM + IVUS Weekly Every 14 days Every 3 weeks Every 4 weeks Every 5 to 6 weeks 1-2 YEARLY NEW DEVELOPMENTS • Harvesting • Organ transport • MCS – Centres of excellence FEES • Harvesting heart – 75 units. – Insertion IC drain under local – 86 units. – Tonsillectomy and adenoids – 115 units – Diagnostic coronary angiogram – 140 units Estimated U.S. Average 2008 FirstYear Billed Charges Per Transplant Transplant 30 Days Procurement Pre-transplant Hospital Transplant Admission Physician During Transplant 180 Days ImmunoPost-transplant suppressants Admission Total Heart Only $34,200 $94,300 $486,400 $50,800 $99,700 $22,300 $787,700 Single Lung Only $7,500 $53,600 $256,600 $27,900 $84,300 $20,500 $450,400 Double Lung Only $20,700 $96,500 $344,700 $59,300 $113,800 $22,800 $657,800 Heart-Lung $49,100 $151,900 $682,500 $73,000 $143,300 $24,700 $1,123,800 Liver Only $21,200 $73,600 $286,100 $44,100 $77,800 $20,600 $523,400 Kidney Only $16,700 $67,500 $92,700 $17,500 $47,400 $17,200 $259,000 Pancreas Only $16,500 $68,400 $93,400 $16,300 $58,700 $22,200 $275,200 FEES 2 • Heart transplant – 875 units • Lung transplant – 600 units Generic Drug Immunosuppression in Thoracic Transplantation: An ISHLT Educational Advisory Patricia A. Uber, PharmD,a Heather J. Ross, MD,b Andreas O. Zuckermann, MD,c Stuart C. Sweet, MD,d Paul A. Corris, MD,e Keith McNeil, MD,f and Mandeep R. Mehra, MBBSa 1. Clinicians should educate their patients to inform the coordinating center if a change in either the labeling or appearance of their immunosuppressive medications suggests that a generic drug substitution has occurred. 2. Clinical care coordinating centers must develop structured approaches for the education of all personnel with regard to use of generic immunosuppressants. 3. In unique clinical situations, where critical drug dosing represents a fine balance, caution should be exercised in the use of generic immunosuppression. 4. Heightened vigilance to adverse sequelae and closer therapeutic drug monitoring is indicated until a stable immunosuppression milieu can be established