25 Feb 2007

What is Port A implantation


"Port A" is a device implanted subcutaneously used for long term intravenous injection. The term is derived from the product name "Port-a-cath", which is one of the oldest device. however, there are several deffrent types of similar devices on the market made by different company nowadays.

The subcutaneous implantable infusion system consists of a catheter and a injection port. The port is implanted subcutanously, usually on the infraclavicular area, and can be punctured repeatly several hundred times. The catheter connected to the port was implanted into the venous system all the way to the central vein. The catheter tip was usually placed in SVC or right atrium. Thus the intravenous injection substance (such as drug for chemotherapy) will goes directly to the central vein through the catheter.

In short, it's a deviced implanted in the human body used for long-term and repeated injection of intravenous drug. Usually, it is implanted by vascular surgeon in the operation room via the right cephalic vein or internal jugular vein.

38 comments:

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Hey, Paul,

Thank you very much for the explanation of Port A. As for PTA, I found the answer in one of your entries. :)

The procedures you've blogged are difficult for me to visualize. However, they're good lessons, which definitely will benefit me someday in my clinical.

Could I ask you a question? This morning I read a Chinese News (see below), which makes me wonder if it's really that easy to get DVT.

"台中縣豐原市大專生林佳鴻春節連日熬夜上網,22日上午昏倒在浴室送醫不治;...就讀南開工專一年級的林佳鴻(18歲)是學校體育健將,高中還是排球校隊選手.......中國醫藥大學附設醫院急診室主任陳維恭認為,林佳鴻可能是經濟艙症候群猝死(深度靜脈血栓);長期坐在狹窄空間,缺乏活動,下肢血液循環受阻,血液濃稠形成微小血栓,一旦起身後血栓回流到心臟,再送入肺部,引發肺栓塞,患者出現呼吸困難、胸痛,嚴重會虛脫、猝死。"

As I told you previously, I'm in a nurisng program. Although this is just my second semester, I’m exhausted already. Because of the language and declining cognition due to aging, the school has been very tough for me. Therefore, I won’t be able to come by too often. However, I definitely will swing by to take some more lessons from you when I’m available.


AZ Sunny

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