TREATMENT OF ENDOCARDITIS: Destruction and Reconstruction of the Fibrous Skeleton. Gösta B. Pettersson, M.D., Ph.D. No relationships to disclose!

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1 TREATMENT OF ENDOCARDITIS: Destruction and Reconstruction of the Fibrous Skeleton Gösta B. Pettersson, M.D., Ph.D. The Cleveland Clinic Foundation No relationships to disclose!

2 Adult Cardiac Surgery Symposium 93rd Annual Meeting of the AATS, Minneapolis, Minnesota Sunday, May 5, 2013 TREATMENT OF ENDOCARDITIS: Destruction and Reconstruction of the Fibrous Skeleton Gosta Pettersson, M.D., Ph.D. The Cleveland Clinic Foundation No relationships to disclose!

3 Surgical treatment of endocardtis is learning from experience!

4 200 Cleveland Clinic Endocarditis Surgery #

5 Lesson 1: Don t violate basic surgical principles

6 Lesson 2: Integrate Pathology and Anatomy ROSS for Endocarditis

7 This presentation is about Invasive Left-sided Endocarditis with Destruction beyond leaflets and cusps INVASIVE versus NON-INVASIVE

8 Focus: The Fibrous Skeleton

9 Endocarditis Prexcisting Valvular Disease Bacteremia Adherence Vegetations Release of Enzymes Tissue Disintegration Cusps and Leaflets Invasion & Destruction

10 Bacterial Invasion & Destruction: Enzymatic degradation of connective tissue / non-muscle tissue Enzyme specficity & aggressiveness Organism, e.g. staph. aureus

11 Surgical treatment of endocarditis Understanding destruction and pathology is key to debridement and reconstruction!

12 Native Valve Endocarditis versus Prosthetic Valve Endocarditis INVASIVE versus NON-INVASIVE Cause of A-V block

13 Native Valve Endocarditis

14 Prosthetic Valve Endocarditis

15 Prosthetic Valve Endocarditis

16 100 Survival % p=0.65 NVE PVE Years

17 Invasive Endocarditis Invasive Invasive 36% Invasive % 50 69% 69% 25 0 Noninvasive Aortic IE Noninvasive Mitral IE Noninvasive AV+MV IE

18 Survival Non-Invasive % Invasive p= Years

19 Cause of A-V Block?

20 RA Invasion and A-V node destruction!

21 RA Invasion and A-V node destruction!

22 RA Invasion and A-V node destruction! TV CS

23 RA Invasion and A-V node destruction! RCA LCA LT LVOT CFB

24 Aortic Valve Endocarditis

25 100 Survival: Aortic % AV Years

26 Survival: Aortic Non-Invasive % p=0.7 Invasive Years

27 Autologous Tissue LVOT P. PATCH

28 Aortic Allograft and minimal foreign material

29 Drainage to the pericardium

30 Aortic Valve Endocarditis versus Mitral Valve Endocarditis

31 100 Survival: Mitral % AV MV Years

32 Survival: Mitral Non-Invasive % Invasive p= Years

33 Why are we doing worse with Invasive MV Endocarditis?

34 Invasion is to the AV grove!

35 Surgical principles for Invasive Mitral Valve Endocarditis Expose dome incision / aortotomy / split the intervalvular fibrosa Debride = sterilize cavities Reconstruct anulus with autologous pericardium Anchor valve prosthesis to LV inlet myocardium

36 Radical Debridement still a MUST!

37 Autologus pericardium and Prosthesis

38 Double Valve Endocarditis Aortic and Mitral Valve Endocarditis

39 100 Survival: Double Valve % AV MV AV+MV 20 p= Years

40 100 Survival: Double Valve % Non-Invasive Invasive p= Years

41 Survival Non-Invasive AV % Invasive MV AV+MV Years

42 The Commando operation Intervalvular Fibrosa Reconstruction AV MV

43 Patients 1971 to 2008 n = 146 Double Valve Replacement for Endocarditis 51 (35%) Commando operations

44 % Overall Survival DVR Commando Years

45 Difference in Selection Factors 3 DVR % 2 1 Commando Propensity Score

46 Survival: Matched % DVR Commando Years

47 Double Valve PVE

48 Double Valve PVE

49 Commando operation Intervalvular Fibrosa Reconstruction

50

51

52

53

54 Prosthetic Valve Endocarditis: Subpulmonary Abscess LCA LT

55

56 A Commando Operation

57 Postop TEE

58 Many Roads may lead you to Rome! Condition: Radical debridement Krasopoulos, David and Armstrong 2008

59 Pitfalls

60 Pitfalls Too Late - Preoperative Stroke Too early - Hemorrhagic stroke Insensitive organism Incomplete debridement Missed lesions Misinterpretation of Anatomy and Pathology

61 Pitfalls cont.: Adverse events during reentry

62 Sometimes you need compromise: This prosthetic mitral valve was not infected! LCA RCA

63 Open Chest and Vacuum Dressing an option for Coagulopathy and Bleeding

64 Keys to success 1. See what you are doing 2. Know what you are doing 3. Radical debridement 4. Use less foreign material 5. Master alternative options for reconstruction 6. Adjust technique to tissue quality

65 Q46. Which factor is least important to success of surgery for endocarditis? a. Timing of surgery? b. Appropriate antibiotic treatment? c. Radical debridement? d. Choice of replacement valve?

66

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