1 (edited by PCL1029 Mon, 05 Mar 2012 19:42:01)

Topic: A good article about CCA for those who are new to this web site.

Hi, everyone,
If your are new to this disease web site during the last week or so.

Below is the link for the article title "Cholangiocarcinoma-controversies and challenges.by Dr. Patel -it will provide you a very good basic knowledge and understanding  about this disease.Try not just read the abstracts but the whole article.

www.ncbi.nlm.nih.gov/pubmed/21460876

It is also a good idea to read about the difference among CAT scan,MRI and PET scan to increase the understanding of each and what are they good for.
Below is an updated re-print message.

Hi,
Side effects of blood transfusions are fever and transfusion allergic reactions such as itching ,rash and shortness of breath ,which if occur, will be in the begining of the transfusion and generally will be managed by premedicated with Tylenol 605mg  and Benadryl(antihistamine. 50mg) before transfusion.
CEA and CA19-9 are tumor markers ,along with ALK phosphatase,  to MONITOR the progress of the chemo treatment. Doctors are looking for a TREND rather than single value ,together with the Cat Scan result to determine the course of treatment.
If you have advance  cancer or cancer metastasized ,CEA is more likely to have higher value;a steadyily rising CEA value often is the first sign of tumor recurrence.
If you have CC in your liver(intrahaptic),you will most likely to have a much lower CA19-9 value than if you have the  ductal CC in  or near the main bile ducts .
CA19-9 is ordered for checking bile duct blockage and that is why after putting in a new stent the CA19-9 will be lower.
ALK phos is indicated for bile duct's health;ALT and AST are related to the liver's health.AFP is biomarker for liver cancer.
Cat Scan is for diagnosis purpose.(including initial diagnosis and follow up after resection or chemo treatment for CC.  Both MRI and Cat Scan are used to look for structural changes(ie:the size ).PET scan is used to look for functional  changes (activity)of  the CC.
According to one study compared  20 intrahepatic patients images ,the extent of the  tumor enhancement was similar with both MRI and CT methods,however  the relationship of the tumor to the vessels and surrounding organs was more easily evaluated on CT scan as opposed to MRI.But for perihilar tumors CT also has limited sensitivity for extra regional nodal disease(ie metastases to the periaortic,pericaval or celiac artery lymph nodes.)---from uptodate .com.
I myself think that MRI with contrast is  a good choice after initial CT with contrast when inconclusive reported in the early stages of CC development(ie: size of the cc<2cm.) to rule out recurrence.
PET Scan allows visualization of CC because of the high glucose uptake of the bile duct epithelium(the lining )-- the "Hot spots" will light up on the PET scan.
A PET scan  therefore can  help to tell if the bile duct obstruction is caused by a cancer or not.PET scan can also be useful in determining the cancer may have  spread or return after treatment.
Some hospitals equipe with machine that  is able to perform both A PET and CT scan at the same time(PET/CT scan) ;this allows the radiologist to compare areas of higher  radioactivity(SUVmax) on the PET with the appearance of that area(the location) on the Cat scan. But  according to the radiologist I talk to , A (PET/CT scan ) is not the SAME as if you take them SEPARATELY;(PET/CT scan is PET plus CT scan WITHOUT contrast). Remember Ct scan is for structural and PET is for functional( activity) visualization. That is why sometimes doctors order a PET scan on this 3 month checkup and on the next checkup, he/she orders a CAT Scan with contrast or MRI instead.
Additional info. from uptodate.com
MRI and CAT SCAN (CT)  have similar resolution for liver lesions.
CT has been considered to be superior to MRI for evaluating extrahepatic organs and calcifications. MRI is more specific than CT for differentiating cavernous hemangiomas,diffuse hepatic steatosis and focal fatty infiltration.Also MRI should be reserved for the evaluation of lesions less than 2 cm,or lesions located adjacent to the heart or to major intrahepatic vessels.If you are allergic to the IV  iodinated contrast agent used for CT,then MRI is the alternative because the contrast agent used is different than CT. and MRI is not involved  radiation .
Having SUVmax value show up on the PET scan does not automatically means you will have cancer activity on that "hot spot" location. It is highly depending on the location such as the liver,the lung or the prostate; and the condition of your health(ie: infection or inflammation on the other parts of the body will light up as "hot spots" too).
I hope the above info. helps.
God bless;.

Please know that my personal opinion is not intended nor implied to be a substitute for professional medical advice. If  provided, information are for educational purposes.Consult doctor is a MUST for changing of treatment plans.

Re: A good article about CCA for those who are new to this web site.

Thank you for this info PCL. 
Lisa

3 (edited by PCL1029 Tue, 06 Mar 2012 11:55:10)

Re: A good article about CCA for those who are new to this web site.

Hi, for the new members who just have registered  in the past weekend or so; below are the little map that may help you to get the info you need faster for your specific needs.
1. Below are the most common chemotherapy agents  and targeted therapy agents used both under traditional and in clinical trials settings.
2.for the chemotherapy REGIMENS,please read the message under the discussion forum of chemotherapy title"systemic chemotherapy" to get the complete idea of the treatment and studies results pertaining to that regimen.
3. for side effects of a chemo,please read the message under the forum discussion title "Adverse reaction and side effects." type in the word suggestion for nausea or suggestion for pain in the search box above. and you will find some answers as well as the experiences of  the other members.
4.for radiation options,which now are pretty much a very hot and useful treatment option;check out this web site under discussion forum "radiation treatment etc".
5. for the understanding of how CAT scan ,MRI and PET scan works;please read the message re-print just a few messages about this one. Thanks.

Here is the list  of chemo agents that mostly used for CCA that I can find at this point. most of them are used in combination to get the best results (synergy) out  of the combo that used in the regimen.

Taken by Mouth:(not necessary FDA approval indications  for CCA but doctors can use them out of protocol)
1.Xeloda(oral form of 5FU)-see 5Fu below;diarrhea and hand and foot symptoms are the side effects.

2.erlotinib(Tarceva)---EGFR cell pathway inhibitor(tyrosine kinase inhibitor);
inhibit angiogensis (cut off blood supply to cancer cells and cause them to die);cause cell death by interrupting the reproduction of cancer cells;smoking will decrease the drug effects by 24% which may result in treatment failure.

3.sorafenib.(Nexavar)---Multiple  cancer cell pathways inhibitor; inhibit cell proliferation and angiogenesis(cut of blood supply to cancer)
4. Celecoxib-an antiflammatory agent belongs to the COX2-an enzyme family.but use much less recently.

Taking as Infusion:
1. 5FU.---a chemo agent belongs to the Antimetabolite family that inhibits RNA synthesis and function ; may also  on DNA synthesis but to the less degree. in doing so,cause cancer cell to die.

2.Gemzar---a chemo agent belongs to the Antimetabolite family  that inhibits the DNA synthesis in the cancer cells;induce  tumor cell death (apoptosis);
some study indicated Gemzar is more effective in treating CCA than 5FU,but  both 5FU and Gemzar are  FIRST LINE  chemotherapy  agents of choice  to combine with other chemo agents in CCA regimens;other  study indicated effectiveness of both agents are more or less the same.

3.Cisplatin---1st generation of the platinum family, an alkylating agent affects  cell DNA replications thus causes cancer cell death(apoptosis);may cause kidney impairment and impairs  hearing (ototoxicity);usually use in combination with Gemzar or  5FU to provide the synergic effect of the regimen of GEM/CIS or FOLFOX.
4.Oxaliplatin--- the 3rd. generation of the platinum family;less kidney impairment than cisplatin but more patients experienced peripheral neuropathy
5.Carboplatin--- the 2nd generation for the platinum family;decrease platelet production;much less toxicity on the kidney compare to others in the platinum family; cause less peripheral neuropathy  than oxaliplatin.

6.Avastin(bevacizumab)-a VEGF cell pathway inhibitor--- an angiogensis inhibitor to cut of blood supply to tumor cells.and cause cancer to die.

7.Erbitux(cetuximab)-an EGFR cell pathway inhibitor;blinds to the cancer cells surface receptor of EGFR and block their stimulation;therefore renders the cell pathway useless.

8.Leucovorin(it is not a chemo drug but used  to enhance 5 FU effect)

9.FUDR(Floxurdine)-it is an analog of 5FU,belongs to the Antimetabolite family. Administered via the hepatic artery(pump);hepatic toxicity is high.

10.Epirubicin--- a chemo agent belongs to the Anthracyclines family which is less used nowadays.
11.Adriamycin---a chemo agent belongs to the Anthracycline family;interrupt the DNA and RNA synthesis in cancer cells and cause cell death;used in chemoembo in CCA;major BOX warning by FDA is myocardial toxicity  ;also neutropenia and leukopenia(75%)

12.Irinotecan(Camptosar)-inhibits DNA synthesis in tumor cells by inhibiting an enzyme called topoisomerase1 ;  useful but tough to take.

13.Docetaxel-chemo agent belongs to the Taxane family,interrupt the mitosis of the cancers cells cycle to reproduce and cause tumor death.

14.Mitomycin- a chemo agent belongs to the Alkylating family; inhibit DNA and RNA synthesis and thus cause cancer cell death ;use in chemoembo for CCA and can be combined with 5FU for treating CCA too.

15.Panitumumab(similar to cetuximab ;but difference from them is that this is the first  100% HUMAN  monoclonal antibody direct against EGFR cell pathway;  therefore you may expect less allergic reaction from Panitumumab.

16.paclitaxel-(Taxol) a chemo agent in the Taxane family that  primary inhibits the cell cycle during mitosis;thus the tumor cell cannot duplicated and  die;Taxol should be given before cisplatin if both drugs are used at the same time for maximum benefit of the combo.;also inhibits angiogenesis but is very tough to take.

Please know that my personal opinion is not intended nor implied to be a substitute for professional medical advice. If  provided, information are for educational purposes.Consult doctor is a MUST for changing of treatment plans.

Re: A good article about CCA for those who are new to this web site.

Thanks for all of this Percy, very helpful for all.

Re: A good article about CCA for those who are new to this web site.

Percy,

If you read this today or anytime soon, please couldf you check your email as I've just emailed you a minute ago.

Thanks!

Gavin