A case of single‐incision laparoscopic surgery for acute appendicitis with left ventricular assist device

Author(s):  
Yoshinao Chinen ◽  
Takayuki Ogino ◽  
Shiki Fujino ◽  
Hidekazu Takahashi ◽  
Norikatsu Miyoshi ◽  
...  
2016 ◽  
Author(s):  
Joshua S. Roark ◽  
Akinniran A. Abisogun ◽  
Jason N. Katz

Acute appendicitis, while common in younger patients, is an unusual cause for hospitalization among older adults. We report a case series of 3 individuals who had been previously implanted with a continuous-flow left ventricular assist device (CF-LVAD) for end-stage heart failure, and who subsequently developed acute appendicitis. Both axial-flow technology and nonpulsatile systemic blood flow have been implicated as potential causes for bleeding and thrombosis in contemporary LVAD populations(1-3). This case series represents the first report of acute appendicitis as an adverse event following LVAD implantation and represents a patient demographic that would historically be at very low-risk for this illness. Our patients, their presentation, and the associated pathologic findings raise the possibility of a unique link between appendiceal inflammation and CF-LVAD support that warrants attention.


Author(s):  
J P Cassella ◽  
V Salih ◽  
T R Graham

Left ventricular assist systems are being developed for eventual long term or permanent implantation as an alternative to heart transplantation in patients unsuitable for or denied the transplant option. Evaluation of the effects of these devices upon normal physiology is required. A preliminary study was conducted to evaluate the morphology of aortic tissue from calves implanted with a pneumatic Left Ventricular Assist device-LVAD. Two 3 month old heifer calves (calf 1 and calf 2) were electively explanted after 128 days and 47 days respectively. Descending thoracic aortic tissue from both animals was removed immediately post mortem and placed into karnovsky’s fixative. The tissue was subsequently processed for transmission electron microscopy (TEM). Some aortic tissue was fixed in neutral buffered formalin and processed for routine light microscopy.


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