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This blog is a networking resource for ASDIN members. It is not intended to be utilized as legal or medical advice. ASDIN offers this blog as is, without any express or implied warranties, or other assurances as to the content of the material contained herein. ASDIN assumes no responsibility for errors or omissions contained herein, or for any actions taken or damages suffered by any person on the basis of, or in reliance upon, any of the information contained herein. Cases and images should ALWAYS be stripped of any/all patient-specific information (name, DOB, MR#, etc.). Cases should be well thought out and suitable for distribution. Language usage should be polite, collegial, and professional. If it is found that a participant is not using appropriate language, that participant’s comment may be blocked.

 

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arm swelling after an AV graft

Posted By venkatesh rajkumar, Wednesday, November 8, 2017
https://www.youtube.com/watch?v=zoO-mpGHD9w&feature=youtu.be

hi all,

         This patient with ESRD had a left brachiocephalic vein stenosis (CTO) with upper limb edema ( there was no access on that side then). We did an angioplasty and stenting 8 months ago with complete resolution of edema. He was getting dialysis through a right sided jugular tunnelled catheter. Now that we wanted to create a permanent access for him ,went ahead and did a left brachio axillary graft. He developed arm and forearm swelling after that which is persisting and increasing. There was no sign of cellulitis. It has been a month now since creation of the graft and the swelling is still there and we have not used the graft yet .We did a venogram through the graft which looks normal without ant central stenosis/instent stenosis.I have attached the images of the graft vein junction, the central outflow and a short video of flow through the graft vein junction. What could be the reason for the swelling? How to proceed next? Inputs please...

Thanks

Dr Venkatesh,

Chennai,India.

 Attached Thumbnails:

Tags:  central vein stenosis 

PermalinkComments (20)
 

SVC syndrome gone awry

Posted By Wesley A. Gabbard, Sunday, January 1, 2017

I have been meaning to present this case for a while. This case taught me many different lessons. Firstly, never trust what anyone says (even yourself) about what can and cannot be done. Secondly, always have a plan B, and, hopefully, a plan C.

 

This was a patient that I had known for years. At the time he was 49 years old. He had had multiple attempts at a permanent dialysis access with each failing early after creation or within a few months to years. This was in spite of mapping and aggressive maturation procedures as well as active surveillance/monitoring. Part of the issue was non-compliance on his part, but, also, he seemed to stenose quickly and easily despite even stenting. He had accrued multiple medical conditions in his young life, including: coronary artery disease and peripheral vascular disease in addition to diabetes, obesity, and hypertension. He was poor surgical candidate for anything extremely invasive.

 

Interestingly, he had also developed SVC syndrome that was symptomatic (he had a swollen head). At the University, a CT of the chest showed the SVC occlusion. The local expert in central vein stenoses said "there was nothing to do".

 

I had seen him multiple times for access issues, but, for some reason, after his last graft had failed, he went to the local hospital where a surgeon placed the tesio catheters. Yes, there is a RIJ vein tesio with a cephalad venotomy site and a left SCV tesio. He was sent to me due to poor function of the tesios.

 

I was able to cut down to the RIJ vein tesio after an angiogram showed no blood flow to the right atrium. Using a 180-cm stiff straight Glidewire and guiding Berenstein catheter, I was able to pass the guidewire through the occlusion (after removing the internal portion of the tesio and cleaning the guidewire). Amazingly, the guidewire passed through the right heart and into the IVC. I, then, dilated the SVC with a 12mm Conquest catheter with 80-90% residual due to elasticity. So, I decided to stent the SVC. I deployed a 14mm by 4cm Luminexx stent, that although I allowed time for it to expand and with the occlusion in the middle of the stent, the stent traveled forward and dropped into the right atrium. Thankfully, the stent was still on the guidewire. Now, I was in a dilemma. I was in an outpatient center with a patient who would likely not survive open heart surgery. If the stent embolized, he would likely die as well. I could not grab the stent with anything. A 14mm by 4cm Atlas catheter passed right through the stent. Additionally, the IVC appeared to come off the right atrium somewhat anteriorly which kept the stent from passing out of the heart. The one image shows the stent in the right atrium, but it is somewhat faint. Finally (after trying multiple ideas), I was able to grab the stent with an 18mm by 4cm Atlas catheter and pass it through the right atrium and park it in the IVC. I performed an angiogram that showed successful placement in the IVC.

 

Now, I still had the occluded SVC. The blood flow was through the azygous system. Therefore, I deployed a second 14mm by 4cm Luminexx stent in basically the same fashion as the first one (but, making certain that it did not travel even the slightest). It was placed across the occlusion and seated with the 14mm by 4cm Atlas catheter. There was about 20% residual stenosis, but blood flowed into the right atrium.

 

To make matters worse, the surgeon had placed the RIJ vein tesio with a cephalad venotomy site as the RIJ vein was occluded at the clavicle. Therefore, I cannulated an 8mm by 4cm Vaccess catheter at the clavicle that been used to dilate the RIJ vein and right innominate veins using the 180-cm stiff straight Glidewire that was already in place. I used this new venotomy site to place a RIJ vein tunneled dialysis catheter. I collapsed the balloon around the micro-wire after inserting it into the balloon using the 21 gauge needle. I had cannulated the balloon with this needle using ultrasound guidance just cephalad to the clavicle. Remember, this patient was obese and had a short neck which made this cannulation difficult. The micro-wire and balloon were passed centrally giving me a venotomy site just cephalad to the clavicle to keep the catheter from kinking. With a nicely functioning RIJ vein tunneled dialysis catheter, I also removed the left SCV tesio.

 

Therefore, like I said. Never trust anyone, even yourself. Sometimes, we just need to try a case and find out if there is nothing left to do. And, always have a Plan B and a Plan C (if you can).

 Attached Thumbnails:

Tags:  Central Stents  central vein stenosis  tunneled dialysis catheter 

PermalinkComments (19)
 

Mild facial and neck swelling in a 32-year-old female HD patient

Posted By Hyungseok Lee, Sunday, November 13, 2016
Updated: Monday, November 14, 2016
https://youtu.be/v3yjd8PxfI4

A 32-year-old female hemodialysis patient with a radiocephalic AV fistula in her left arm was referred to my center two weeks ago.

Although she complained facial and neck swelling, but it was not obvious ( The swelling was hard to be noticed. ). Also, there was no swelling in her left arm.

She have had tunneled cuffed dialysis catheter in her right jugular vein for 1 year before AVF placement.

( The radiocephalic AV fistula was created at Feb.2016. Its blood flow rate was 850 ml/min at brachial artery. )

 

In central venogram, severe SVC stenosis with prominent azygos vein was noticed, and it was thought that outflow venous blood mainly drained through azygos vein. ( Fig. 1 )

In CT scan, SVC was severely narrowed( Fig. 2 ), and right innominate vein was totally occluded ( Fig. 3 ). 

 

Question 1. ; There are little symptoms, and no problems in hemodialysis treatment. 

                  Should I perform angioplasty or make observation for the SVC stenosis ?

 

Question 2 ; In Korea, stent grafts in central vein stenosis are not available yet. 

                  If symptoms ( swelling of face , neck or any other sites ) become worse, what kind of treatment option would be suggested ?

 

Question 3 ; If stent grafts were available, the treatment strategy would be different ?

 

Question 4 ; What are the pitfalls and suggestions in stent deployment for this clinical situation ?

 

Thank you for your advice !

 

Hyungseok Lee 

 

Seoul, South Korea

 

 

 Attached Thumbnails:

Tags:  central vein stenosis 

PermalinkComments (13)