When attempting to deploy ivc filter, struts would not open.It appeared the filter was crimped down like it was still constrained by sheath but it was not.Attempted to retrieve with deployment sheath, but filter became loose.Unable to retrieve filter despite vascular surgeon spending four hours with assistance from a second vascular surgeon and an intervention cardiologist.Filter ended up ascending into right ventricular and into tricuspid valve.Cardiothoracic surgeon suggested pt may need sternotomy to open heart and remove filter.Pt transferred to higher level of care facility-(b)(6).
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