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Recurrent Outflow Failure of 3 Catheters in Same Patient

Posted By Stephen R. Ash, Tuesday, November 8, 2016
Updated: Tuesday, November 8, 2016

First Outflow Failure, Patient History

 

69 year old patient with hypertensive nephrosclerosis started on hemodialysis in 2010
Failure of several attempts to create AV fistula.
First PD catheter placed surgically 4/11, without difficulty, lateral border of rectus on left side.
By 5/11 had pain with inflow/outflow of PD fluid, limited volume exchange. Encapsulation of catheter was seen with IP dye injection. Attempts at passing guidewire were painful and this procedure was abandoned.
In 7/11 PD cath was repositioned laparoscopically from mid-abd level and fibrous plug removed. Lots of omentum was seen but no omentopexy was done. 
PD continued without problems except intermittent nausea and vomiting until 5/12. 
*See Figure 3 of attached PowerPoint

 

Second Outflow Failure

5/12 had pain in LUQ with inflow, and greatly diminished fluid tolerance and outflow volume
Reposition planned.
Dye injection indicated again an encapsulation of the PD catheter by omental space, and little communication of encapsulated area to the peritoneum.
New PD catheter placed peritoneoscopically on right with coil in left lower abdomen and old catheter removed.
No adhesions were seen in the peritoneum but a large amount of omental tissue was seen. Catheter in LUQ was not visualized.
* See Figures 5 and 6 of attached PowerPoint 
 Third Outflow Failure
PD continued uneventfully until 11/12
Day before Thanksgiving, patient had RUQ pain with inflow and limited outflow drainage.

Dye injection indicated again encapsulation of the PD catheter by omentum, this time around the liver.

There was no communication of encapsulated area to the peritoneum. 

*See Figures 8 and 9 of attached PowerPoint

 

Questions: 

1.What is the cause of all three outflow failures?
2.What is your next step to provide dialysis for this patient? 

Download File (PPTX)

Tags:  peritoneal dialysis catheters 

Permalink | Comments (4)
 

Comments on this post...

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Kenneth Abreo says...
Posted Tuesday, November 8, 2016
There are two problems with this patient's PD catheters. Migration out of the pelvic cavity and omental wrapping. I would ask a surgeon to laparoscopically reposition the catheter in the pelvic cavity and do an omentopexy. In addition, our surgeons put an anchoring stitch that holds the straight segment of the catheter to the abdominal wall and prevents it from migrating. This anchoring stitch technique is shown in the ASDIN Peritoneal Dialysis Curriculum.
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Rajeev Narayan says...
Posted Tuesday, November 8, 2016
I wonder if in addition to Omentoplexy, if a partial omentectomy might not be indicated in this case- depending on how much omentum there was. It would seem omental entrapment with resultant migration out of the pelvis with encapsulation of the catheter coil is rather aggressive in this case. Agree with Ken, that an anchoring suture sling might be helpful. I also wonder if perhaps a straight catheter might be better, given data on migration being less with the a straight catheter.

Regardless of what is done, my experience is that in patients like this with such rapid PD catheter failure, their time on PD is limited. Sometimes I find that even after omentoplexy the small bowel decides to get into the action and decides to wrap itself around the catheter.
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Wesley A. Gabbard says...
Posted Wednesday, November 9, 2016
I agree with Raj, an omentopexy or omentectomy is needed. The first pictures almost look like the catheter was in a space that did not really communicate with the rest of the abdomen. The other two show movement of the catheter out of the pelvis. At least, what I have read is that an anchoring stitch may help keep the catheter in the pelvis, it does not improve function. It also means that if there is a problem with the catheter, it will almost always need to be addressed surgically.
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Stephen R. Ash says...
Posted Wednesday, November 9, 2016
Thanks to Ken, Raj and Wes for the comments. I agree with them. All three of the outflow failures in this patient were accompanied by a pocket of omentum that prevented dye from communicating with the rest of the peritoneum. This is formed, I believe, from omentum covering the catheter like a sheet and plastering it against the parietal peritoneum. With this limited space around the catheter, reposition is almost always a failure. I agree that an omentectomy or omentoplasty done laparoscopically might have allowed a fourth catheter to work (though there are failures of this invasive procedure, as mentioned above). We offered this to the patient as an option. She decided against it and decided to discontinue PD and continue on hemodialysis. I removed the final PD catheter without difficulty. Nice comments, you all.
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