<prompt> Answer this question truthfullyWhat is the Chiari network?  <response>: <reason> Entrapment of catheters during right heart catheterization has been reported.ev:youtubeT_oSE4f1icw-133535547003356906hlen8805973032893590466hlen5824301041073753290hlen2322002432861561956hlenImages courtesy of Professor Peter Anderson DVM PhD and published with permission PEIR, University of Alabama at Birmingham, Department of PathologyChiari Network: Gross; fixed tissue, close-up of coronary sinus with fenestrae in valve Chiari Network: Gross; fixed tissue, close-up view, an excellent example 