| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Fenestration operation to atrioventricular valve chordae tendinae | Is a | Operation on atrioventricular valve chordae tendinae | true | Inferred relationship | Some |  |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Is a | Cardiac conduit operation | false | Inferred relationship | Some |  |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Repair - action | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Surgical repair - action | false | Inferred relationship | Some |  |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve structure | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Fenestration - action | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Is a | Repair of atrioventricular valve | false | Inferred relationship | Some |  |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve structure | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site - Direct (attribute) | Atrioventricular (non-mitral, non-tricuspid) valve structure | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site - Direct (attribute) | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site - Direct (attribute) | Structure of chordae tendineae cordis | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Fenestration - action | false | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Fenestration - action | true | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site - Direct (attribute) | Structure of chordae tendineae cordis | true | Inferred relationship | Some | 1 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Surgical action | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | false | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Method | Surgical action | true | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Procedure site | Atrioventricular (non-mitral, non-tricuspid) valve chordae tendinae | true | Inferred relationship | Some | 2 |  | 
| Fenestration operation to atrioventricular valve chordae tendinae | Is a | Fenestration of cardiac valve | true | Inferred relationship | Some |  |  |