Brief Answer:
All queries answered sir

Detailed Answer:
Hello sir and welcome.

Thank you for writing to us.

I have gone through your query with diligence and appreciate your effort to learn more about everything that is part of your treatment or others. Let me try my best to answer all your queries sir.

Firstly, the differences are:
- The uldall catheters are used for acute and long-term hemodialysis for patients without peripheral vascular access; and is usually inserted percutaneously
- The XXXXXXX catheters are used for a shorter duration and are usually temporary and are used when peripheral access is not possible

Uldall catheters are tunneled and XXXXXXX catheters are non-tunneled.

Uldall catheters can be used for a duration of weeks to months and the average time of use was found to be around 150 days, whereas, XXXXXXX catheters can be used for a shorter duration and usually are considered temporary.

I would be glad to explain the two ports to your sir. You are right sir, although the ports are called venous and arterial, both are placed in the veins (i.e. they are venous). The red port which is the arterial port withdraws blood from the patient and transports it to the dialysis machine; and the blue port is the venous port which returns blood to the patient from the dialysis machine. So one is arterial and the other is venous.

I hope I have successfully answered all the queries to you in a manner best understood by you sir. Please feel free to write back to me if at all I have not explained things well enough or if you have any further clarifications, I would be more than happy to help you.

Best wishes.

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Brief Answer:
All queries addressed sir

Detailed Answer:
Hello once again sir.

I would gladly provide further clarifications.

Uldall catheters are inserted into the superior vena cava through the following sites:
-Internal jugular vein (neck)
-Subclavian veins
-Femoral

One of the most common reasons for changing or replacing an Uldall catheter and placing a XXXXXXX is due to the complications/risks that the Uldall catheter carries like thrombus formation, etc.

We cannot really assess which one is used more often, as one is used for long-term purposes and one is more temporary. So based on the requirements, either of them are advised.

Yes, they are central venous catheters sir, not for peripheral use.

The types of catheters available are tunneled and non-tunelled. There are further two types of non-tunelled catheters: cuffed and non-cuffed.

The venous blood comes from the SVC, where the red port is usually inserted; and the oxygenated blood is usually returned to the same source (i.e. the SVC). There is usually no concern with the oxygenated blood mixing with the impure blood as the sites of port insertion are well chosen and the oxygenated blood is inserted into the body into a site where it can be pumped to the rest of the body.

I hope you find my response helpful sir. Please feel free to write back to me for any further clarifications, I would be more than happy to help you. Please also feel free to repeat any queries which I have not explained well enough.

Best wishes.

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