Medical Forum / Diseases and Disorders / Cancer / March 2005
For those of you with Medline access........
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Steph - 22 Feb 2005 04:47 GMT I'd be interested in everyone's views on this article. I think it is one of the most important articles in the medical literature in the past 10 years.
Overview
The Contribution of Cytotoxic Chemotherapy
to 5-year Survival in Adult Malignancies
Graeme Morgan*, Robyn Wardy, Michael Bartonz
Clinical Oncology (2004) 16: 549e560
doi:10.1016/j.clon.2004.06.007
Peter Moran - 22 Feb 2005 08:40 GMT > I'd be interested in everyone's views on this article. > I think it is one of the most important articles in the medical literature > in the past 10 years. There seems to be no reason not to post the abstract and here it is. I agree with the conclusions, from the point of view of ensuring accurate informed consent whenever chemotherapy is offered to patients. But think the value of chemotherapy varies too greatly over many different clinical contexts for such *overall* calculations to be meaningful.
If a similar calculation was performed for radiotherapy --------?
1: Clin Oncol (R Coll Radiol). 2004 Dec;16(8):549-60. Related Articles, Links
The contribution of cytotoxic chemotherapy to 5-year survival in adult malignancies.
Morgan G, Ward R, Barton M.
Department of Radiation Oncology, Northern Sydney Cancer Centre, Royal North Shore Hospital, Sydney, NSW, Australia. gmorgan1@bigpond.net.au
AIMS: The debate on the funding and availability of cytotoxic drugs raises questions about the contribution of curative or adjuvant cytotoxic chemotherapy to survival in adult cancer patients. MATERIALS AND METHODS: We undertook a literature search for randomised clinical trials reporting a 5-year survival benefit attributable solely to cytotoxic chemotherapy in adult malignancies. The total number of newly diagnosed cancer patients for 22 major adult malignancies was determined from cancer registry data in Australia and from the Surveillance Epidemiology and End Results data in the USA for 1998. For each malignancy, the absolute number to benefit was the product of (a) the total number of persons with that malignancy; (b) the proportion or subgroup(s) of that malignancy showing a benefit; and (c) the percentage increase in 5-year survival due solely to cytotoxic chemotherapy. The overall contribution was the sum total of the absolute numbers showing a 5-year survival benefit expressed as a percentage of the total number for the 22 malignancies. RESULTS: The overall contribution of curative and adjuvant cytotoxic chemotherapy to 5-year survival in adults was estimated to be 2.3% in Australia and 2.1% in the USA. CONCLUSION: As the 5-year relative survival rate for cancer in Australia is now over 60%, it is clear that cytotoxic chemotherapy only makes a minor contribution to cancer survival. To justify the continued funding and availability of drugs used in cytotoxic chemotherapy, a rigorous evaluation of the cost-effectiveness and impact on quality of life is urgently required.
PMID: 15630849 [PubMed - in process] Peter Moran
J - 22 Feb 2005 15:55 GMT > > I'd be interested in everyone's views on this article. > > I think it is one of the most important articles in the medical literature [quoted text clipped - 4 lines] > the value of chemotherapy varies too greatly over many different clinical > contexts for such *overall* calculations to be meaningful. Same point made here.
Questioning methodology - accusing them of statistical gymnastics. This seems to be making 3 points: Some cancers/stages do respond (maybe I saw that elsewhere - mentioned testicular) The authors did not include people with mets and/or see Colon Duke C ? The authors ignore the positives of partial responses at year 1, 2, 3, 4
http://www.france-cancer.org/rdp2.php?num=2357 Pour ou contre la chimiothérapie ? Une drôle de question, une méthodologie étonnante, une conclusion surprenante. Article pour le moins étrange que celui publié dans Clinical Oncology sous l'égide de trois Australiens : G Morgan (radiothérapeute), R Ward (oncologue) et M Barton (épidémiologiste). Leur problématique : alors que le coût des cytotoxiques devient un véritable problème, quel est le bénéfice véritable en survie attribuable à la chimiothérapie dans la prise en charge des cancers ? Leur méthodologie pour répondre à cette question repose sur une analyse in silico des études randomisées comparant un bras avec chimiothérapie et un bras sans pour 22 tumeurs estimées par les auteurs comme représentatives. Les bénéfices observés en survie à 5 ans sont rapportés au nombre de cas de chaque pathologie observés en Australie et aux Etats-Unis afin de définir le nombre absolu de patients pour qui la chimiothérapie a montré un bénéfice à 5 ans, chiffre qui est alors à nouveau rapporté à l'incidence de chaque cancer conduisant à un pourcentage sensé représenter la contribution globale de la chimiothérapie à une amélioration de survie. À l'issue de l'analyse, les chiffres tombent : 2,3% en Australie, 2,1% aux Etats Unis. D'où cette conclusion (je cite) : "la survie relative à 5 ans des cancers en Australie étant maintenant de plus de 60%, il est clair que la chimiothérapie cytotoxique n'apporte qu'une contribution mineure à la survie des cancers" (encore une fois, je cite).
Sans être spécialiste en biostatistiques, quelques choix méthodologiques attirent malgré tout l'attention à la lecture de ce papier. En premier lieu, l'obtention du bénéfice absolu de la chimiothérapie pour une tumeur donnée repose sur une acrobatie surprenante. Ainsi, par exemple, concernant la prise en charge des cancers du côlon, les auteurs estiment que le bénéfice en survie à 5 ans avec la chimiothérapie est globalement de 5% en se basant sur les études publiées avant 1997 (!) en situation adjuvante (les cancers métastatiques n'apparaissent pas dans leur calcul). Puis, selon eux, ce bénéfice n'existe que pour les cancers Duke C qui représentent 35% des cancers coliques en Australie et 21% aux Etats-Unis. Il ne faudrait donc pas prendre en compte les autres stades dans les données de survie publiées. Les auteurs évaluent donc le bénéfice à 5 ans de la chimiothérapie à 5% (bénéfice global publié) x 35% (sous-groupe en Australie) soit 1,8% ou à 5% (bénéfice global publié) x 21% (sous-groupe aux Etats-Unis) soit 1,0% ! Et ainsi de suite localisation après localisation. Extrêmement filou ! Autre exemple d'escroquerie, Morgan et coll. affirment que le bénéfice de la chimiothérapie est nul pour les cancers du pancréas. En effet, ne trouvant pas de données de survies comparatives à 5 ans, ils en déduisent que la chimiothérapie ne sert à rien dans ce contexte. Le même raisonnement est appliqué aux situations métastatiques. Pas de données à 5 ans ? Pas de bénéfice de la chimiothérapie ! Et peu importe ce qui se passe avant 5 ans
Le myélome subit également le même sort : bénéfice de la chimiothérapie coté à 0% ! Extrêmement filou (bis) ! À vrai dire, il est difficile de vraiment comprendre où tout cela est sensé nous mener. Mais si le but de Morgan, Ward et Barton était de faire parler d'eux, c'est réussi. Oups ! Nous voilà complices ! Rédacteur : Stéphane Vignot
> Morgan G, Ward R, Barton M. The contribution of cytotoxic chemotherapy to 5-year survival in adult malignancies. Clin Oncol (R Coll Radiol). 2004 Dec;16(8):549-60.
Google's translation (this is badly translated/ distorted) At the very least strange article that that published in Clinical Oncology under the aegis of three Australian: G Morgan (radiothérapeute), R Ward (oncologist) and Mr. Barton (epidemiologist). Their problems: whereas the cost of cytotoxic becomes a true problem, which is the true benefit in survival ascribable to chemotherapy in the assumption of responsibility of cancers? Their methodology to answer this question rests on an analysis in silico randomized studies comparing an arm with chemotherapy and an arm without for 22 tumours claimed by the authors to be representative. The benefit observed in survival at 5 years are reported to the number of cases of each pathology observed in Australia and in the United States in order to define the absolute number of patients for whom chemotherapy showed a benefit at 5 years, quantifies which is then again brought back to the incidence of each cancer leading to a judicious percentage to represent the total contribution of chemotherapy to an improvement of survival. At the end of the analysis, the figures fall: 2,3% in Australia, 2,1% in the United States.
From where this conclusion (I quote): "survival relating to 5 years of cancers in Australia being now of more than 60%, it is clear that cytotoxic chemotherapy contributes only one minor share to the survival of cancers" (once again, I quote).
Without being a specialist into biostatistic, some methodological choices attract attention with the reading of this paper. Initially, obtaining the absolute benefit of chemotherapy for a given tumour rests on surprising acrobatics. For example, concerning cancers of the colon, the authors think that the benefit in survival at 5 years with chemotherapy is 5% overall while being based on the studies published before 1997 (!) in auxiliary situation (metastatic cancers do not appear in their calculation).
Then, according to them, this benefit exists only for cancers Duke C which account for 35% of cancers colics in Australia and 21% in the United States. One would thus not have to take into account the other stages in the published data of survival. The authors thus evaluate the benefit at 5 years of chemotherapy with 5% (total benefit published) X 35% (sub-group in Australia) either 1,8% or to 5% (total benefit published) X 21% (sub-group in the United States) or 1,0%! And so on localization after localization. Extremely swindler! Another example of swindle, Morgan and coll affirm that the benefit of chemotherapy is null for cancers of the pancreas. Indeed, not finding data of comparative survivals at 5 years, they deduce from it that chemotherapy is used for nothing in this context. The same reasoning is applied to the metastatic situations. No data at 5 years? No the benefit of chemotherapy! And it does not matter what occurs before 5 years... The myélome also undergoes the same fate: benefit of chemotherapy dimensioned with 0%! Extremely swindler ((a))!
To tell the truth, it is difficult really to include/understand where all that is wise to take us. But if the goal of Morgan, Ward and Barton was to cause controvery, it is successful. Oups! Us here are accessory! Writer: Stéphane Vignot
A reply to that Réaction de Philippe Coucke 12.01.2005 à 14:08 Cet article soulève "le" vrai problème. Même si on peut critiquer la méthodologie utilisée, il n'en reste pas moins que nous devons enfin réfléchir en termes de coût / bénéfice. Si nous ne le faisons pas, d'autres que nous le ferons à notre place et n'hésiterons pas à édicter des règles de prescription autrement plus draconniennes que celles imposées par la seule raison. On voit trop souvent des applications de 2ème, 3ème voire même de 4ème ligne de chimiothérapie, dont à priori on peut prédire la totale inefficacité. Une réponse partielle, trop souvent utilisée comme argument en faveur de cette chimiothérapie, n'est rien d'autre qu'un échec total. Soumettre un patient à une chimiothérapie toxique, contraignante et coûteuse quand on sait qu'il n'a qu'une chance sur dix de "répondre" à ce traitement est une aberration médicale. Nous avons trop tendance à le scotomiser! Par ailleurs, l'application non discernée et donc non ciblée de la chimiothérapie adjuvante est une hérésie en terme économique et en terme de santé publique. Il reste toutefois à espérer que les nouvelles techniques de recherche de facteurs pronostics (micro-arrays ou autres), les nouveaux traitements ciblés, vont enfin sonner le glas de cet arrosage systématique. <which seems to be saying that a partial response is essentially a failure and that first line treatment failures are predictive of same in 2nd, 3rd and 4th>
Steph - 22 Feb 2005 16:09 GMT >> > I'd be interested in everyone's views on this article. >> > I think it is one of the most important articles in the medical [quoted text clipped - 16 lines] > The authors did not include people with mets and/or see Colon Duke C ? > The authors ignore the positives of partial responses at year 1, 2, 3, 4 The paper is very careful to state that it only includes people being treated with curative or adjuvant intent, not patients with metastatic disease. It also points out that the survival improvements from chemotherapy for patients with metastatic disease would certainly be even less. What positives of partial responses are you referring to? The paper didn't try to address that. Read the entire thing, not just the abstract
Bottom line: Of the 22 most common adult cancers (excluding non-melanoma skin cancer), there is evidence of a survival benefit from chemotherapy in only 9. The overall benefit is 2.6% If the three cancers with a proven track record with chemo (Hodkin's lymphoma, NHL and testis germ cell) are excluded, the overall advantage is 1.4%.
I think the maths is very robust, and based on very firm data. It's also not a surprise to me as an oncologist.
J - 22 Feb 2005 16:33 GMT > "J" <virtual@privacy.net> wrote in message > [quoted text clipped - 27 lines] > patients with metastatic disease would certainly be even less. > What positives of partial responses are you referring to? Well, if a tumor shrinks or lesions disappear at year one or two (on chemo), that's viewed as a positive by the patient.
> The paper didn't > try to address that. > Read the entire thing, not just the abstract Ok thanks and/or but I don't have it and if it requires subscription, I won't until readily available to the rest of us. Thanks, J
> Bottom line: > Of the 22 most common adult cancers (excluding non-melanoma skin cancer), [quoted text clipped - 6 lines] > I think the maths is very robust, and based on very firm data. > It's also not a surprise to me as an oncologist. Steph - 23 Feb 2005 02:25 GMT >> "J" <virtual@privacy.net> wrote in message >> [quoted text clipped - 34 lines] > chemo), > that's viewed as a positive by the patient. Yes. Viewed as positive by the patient, and often the oncologist. But does it mean anything? Just like does a reduced tumor marker mean anything?. It might, it might not.
Peter Moran - 23 Feb 2005 07:05 GMT >>> "J" <virtual@privacy.net> wrote in message >>> [quoted text clipped - 40 lines] > it mean anything? Just like does a reduced tumor marker mean anything?. It > might, it might not. I would agree with you that chemotherapy is quite often used under circumstances where it is not likely to do much good. When that is the case it should be a 2-3 month trial of relatively non-toxic agents, with the intention of stopping the drugs promptly if there is no obvious response or side effects are making life unpleasant.
The reasons for any overuse of chemotherapy should also be understood. Firstly, even with cancers that are generally unresponsive to chemotherapy, occasional spectacular results occur making it difficult to predict outcomes. I had a patient with hepatic secondaries from colon cancer who I tried to discourage from having chemotherapy, because of the evidence that it is generally unresponsive . He had a complete remission with 5FU alone, and was still in remission three years later when I lost contact with him.
Secondly, there is that urge to "do something". The same factors that cause patients, relatives, and some practitioners to try "alternative" treatments, when in desperate straits, are also influential within conventional care. So, unless external pressures based upon strict cost-risk-benefit analyses are applied to oncologists, chemotherapy will continue to expose itself to accusations of overuse.
From my observations oncologists vary greatly individually in the readiness with which they apply chemotherapy, and there are considerable differences in the aggressiveness of oncologists in different countries. You probably know what countries I have in mind.
Peter Moran
Steph - 23 Feb 2005 07:52 GMT >>>> "J" <virtual@privacy.net> wrote in message >>>> [quoted text clipped - 52 lines] > chemotherapy, occasional spectacular results occur making it difficult to > predict outcomes. Which is exactly the argument used by the Rife and laetrile loonies, Peter.........
> I had a patient with hepatic secondaries from colon cancer who I tried to > discourage from having chemotherapy, because of the evidence that it is > generally unresponsive . He had a complete remission with 5FU alone, and > was still in remission three years later when I lost contact with him. Again, exactly the anecdotal basis for lunacy. Either we accept that evidence from well designed clinical trials is going to be the basis for decision making, or we go anecdotal.
> Secondly, there is that urge to "do something". The same factors that > cause patients, relatives, and some practitioners to try "alternative" > treatments, when in desperate straits, are also influential within > conventional care. So, unless external pressures based upon strict > cost-risk-benefit analyses are applied to oncologists, chemotherapy will > continue to expose itself to accusations of overuse. There is little doubt it is overused. If I had a germ cell tumour or Hodgkins, you couldn't keep me away from the chemo. But whenever we subject patients to toxic treatment, whatever the type, there has to be a rational basis, with evidence to support it, and there often isn't. I can't buy the argument "we have to do something". I don't know many surgeons who would subject a patient to a major, dangerous, mutilating operation with little or no evidence of benefit...........
> From my observations oncologists vary greatly individually in the > readiness with which they apply chemotherapy, and there are considerable > differences in the aggressiveness of oncologists in different countries. > You probably know what countries I have in mind. Absolutely, and I live and work quite close to one.
> Peter Moran J - 23 Feb 2005 07:57 GMT > "Peter Moran" <moringa@gil.com.au> wrote in message > [quoted text clipped - 4 lines] > > Absolutely, and I live and work quite close to one. In Canada?
J
Steph - 24 Feb 2005 02:49 GMT >> "Peter Moran" <moringa@gil.com.au> wrote in message >> [quoted text clipped - 10 lines] > > J I can see the country in question from my desk...
J - 24 Feb 2005 19:30 GMT > "J" <virtual@privacy.net> wrote in message > [quoted text clipped - 11 lines] > > > I can see the country in question from my desk... Thanks Steph. I thought you were referring to a Canadian oncologist, but realized what you meant, after my post. Something to be said about "sleeping on it" and rereading eh? J
Peter Moran - 23 Feb 2005 22:00 GMT >>>>> "J" <virtual@privacy.net> wrote in message >>>>> [quoted text clipped - 56 lines] > Which is exactly the argument used by the Rife and laetrile loonies, > Peter......... Oh come now! You know how I feel about them!
That may be their argument, but I can support mine with a real patient a with a biopsy-proven condition and documentation sufficient to publish the case in a peer-reviewed journal. I am also talking about the use of agents with proven class activity against cancer, and can produce controlled trials showing lesser effects of chemotherapy agents (some much better than 5FU) against that specific cancer.
My patient has also been exposed to proper informed consent, even me trying to talk him out of the treatment, something that you will never encounter within the overblown advertising and legendary supporting material spread about the Internet by the Rife and Laetrile enthusiasts. Moreover anyone can look at Medline nowadays and see what can be expected from the chemotherapy of any condition.
Nevertheless, even these low-lifes are correct in arguing that adult patients have the right to choose treatments that have a very low likelihood of working *if at their own expense and risk* . We take issue with them on matters they would less like to have discussed, such as proper informed consent.
>> I had a patient with hepatic secondaries from colon cancer who I tried to >> discourage from having chemotherapy, because of the evidence that it is [quoted text clipped - 4 lines] > evidence from well designed clinical trials is going to be the basis for > decision making, or we go anecdotal. Or, we accept that it is quite rational for people to want to try things that have little chance of working (whether conventional or alternative) when faced otherwise with certain unpleasant decline and death , and then argue about what third party payers should be prepared to pay for in that regard, and what should be presented to the patient in terms of informed consent.
In taxpayer-funded health care systems such as you have in your country and I have in mine it is necessary for a committee somewhere to decide upon cut-off points in the provision of certain treatments but these will always be rather arbitrary and involve the exertion of some good old-fashioned medical paternalism.
>> Secondly, there is that urge to "do something". The same factors that >> cause patients, relatives, and some practitioners to try "alternative" [quoted text clipped - 10 lines] > know many surgeons who would subject a patient to a major, dangerous, > mutilating operation with little or no evidence of benefit........... I have not seen anything quite comparable to that in the oncologists I have had dealings with. Also recall my concept of the use of chemotherapy in marginal cases involves the avoidance of very toxic regimes and a brief trial period. The patient should not be exposed to any more danger and "mutilation(?)" than is necessary to determine responsiveness. I would not support the serial trial of different treatments if the first choice does not work in unfavourable cases.
>> From my observations oncologists vary greatly individually in the >> readiness with which they apply chemotherapy, and there are considerable >> differences in the aggressiveness of oncologists in different countries. >> You probably know what countries I have in mind. > > Absolutely, and I live and work quite close to one. Yes.
Peter Moran
Steph - 24 Feb 2005 02:51 GMT >>>>>> "J" <virtual@privacy.net> wrote in message >>>>>> [quoted text clipped - 59 lines] > > Oh come now! You know how I feel about them! I know, Peter. No criticism was intended. But it's the same, really..........
J - 23 Feb 2005 07:57 GMT > "Steph" <steph@vancouver.island> wrote in message > > [quoted text clipped - 50 lines] > intention of stopping the drugs promptly if there is no obvious response or > side effects are making life unpleasant. Aren't you then also buying into the "do something/anything" ? What makes you believe that something less toxic may work better?
> The reasons for any overuse of chemotherapy should also be understood. > Firstly, even with cancers that are generally unresponsive to chemotherapy, [quoted text clipped - 3 lines] > it is generally unresponsive . He had a complete remission with 5FU alone, > and was still in remission three years later when I lost contact with him. How many instances does this happen vs a patient virtually killing themselves with chemo aiming for that goal? J
Peter Moran - 25 Feb 2005 20:32 GMT >> "Steph" <steph@vancouver.island> wrote in message >> > [quoted text clipped - 62 lines] > Aren't you then also buying into the "do something/anything" ? > What makes you believe that something less toxic may work better? I am not saying it will work better. We are not talking here about any realistic likelihood of patient cure, as we might with treatment of leukemia or lymphoma or germ cell tumours, we are talking about palliation and prolongation of survival. Quality of life is thus a critical consideration.
>> The reasons for any overuse of chemotherapy should also be understood. >> Firstly, even with cancers that are generally unresponsive to [quoted text clipped - 12 lines] > themselves > with chemo aiming for that goal? I cannot answer that question as framed. Context is all. It is certainly worth the most severe treatment for six to twelve months (chemotherapy critics sometimes talk as though it will go on forever and that is not true) if you have a cancer that has a good chance of cure with chemotherapy, such as the ones mentioned above.
I have already allowed that the prospects of cure, or even spectacular palliation with chemotherapy for other cancers is so poor as to warrant careful quality of life studies and careful informed consent. Colorectal cancer, melanoma, possibly some kinds of lung cancer are examples of the latter, where the marginal gains with more toxic forms of chemotherapy are probably not worth while.
Slightly different considerations again apply with a third context, that of adjuvant chemotherapy.
Peter Moran
> J eveline - 23 Feb 2005 15:29 GMT While I do not have the advantage of reading the text or even the abstract, I do have the advantage of the mother of a patient. My daughter was given percentages of her breast cancer survival. Several different ones from different agencies, but all indicated the chemo would bring the percentage of survival up a couple points. My daughter being no 'dim bulb" agonized over going through weeks of this distressing chemo, being very ill with the treatments and losing her hair over a 'possible' couple points. The chemo itself being very destructive to her body.
She ended up going along with the research center's advice. Using the protocol they suggested for the best possible prognoses. First the surgery, then the chemo, and finally radiation for several weeks. The chemo was bad and she swears she will not ever do it again, if it comes back. It was months out of her life and no real guarantee that it was beneficial.
There is new hope with the targeted approach and the vaccine that is in the research process now.
eveline
Orac - 25 Feb 2005 01:06 GMT In article <421c2b34$0$255$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com .au>,
> > Yes. Viewed as positive by the patient, and often the oncologist. But does > > it mean anything? Just like does a reduced tumor marker mean anything?. It [quoted text clipped - 20 lines] > cost-risk-benefit analyses are applied to oncologists, chemotherapy will > continue to expose itself to accusations of overuse. This is true. Oncologists use chemotherapy to treat cancer. It is what they are trained to do. (Just like surgeons are trained to treat disease with surgery and radiation oncologists are trained to treat cancer with radiation.) It is human nature to be loathe to admit that they are powerless in the face of a disease that they were trained to treat. Also, as Peter pointed out, desperation on the part of the patient and family can make it even harder to say no to chemotherapy, even in situations where it is very unlikely to do much good.
 Signature Orac |"I am not *trying* to tell you anything. I am simply not | interested in trying to compensate for your amazing lack | of observation." | http://oracknows.blogspot.com
J - 23 Feb 2005 07:41 GMT > >> The paper is very careful to state that it only includes people being > >> treated with curative or adjuvant intent, not patients with metastatic [quoted text clipped - 9 lines] > it mean anything? Just like does a reduced tumor marker mean anything?. It > might, it might not. Well, I hear you, Steph.
But a post-treatment anxiety sets in and many oncologists seem willing to oblige.
And (I realize we're not talking about mets), I see on an ovarian cancer support webpage, a UK'er has been told too aggressive, spreading, stop treatment - wants coping stategies. One person replied "hospice". Many others say "go to as many doctors until you find one who will treat". What I see is that the support is well-intended but wrong. Those same persons would not be comfortable here (and especially not in this thread). This type of thread (and similar, over the years) might be read but is largely ignored.
Off-topic: While I've got your attention, two things: Bob Allison's reply to head and neck - could you have a look at that please?
Pete's wife (or anyone) had seeds, RT and chemo. How long does the effect of this treatment last - continue to work against the tumour? I think he was told 6 months? Is that accurate? (sorry if I've asked this before)
J
Steph - 23 Feb 2005 07:53 GMT >> >> The paper is very careful to state that it only includes people being >> >> treated with curative or adjuvant intent, not patients with metastatic [quoted text clipped - 36 lines] > Bob Allison's reply to head and neck - could you have a look at that > please? Missed it I think, and my newsreader dumps the old stuff......
> Pete's wife (or anyone) had seeds, RT and chemo. How long does the effect > of [quoted text clipped - 3 lines] > > J How long are the seeds radioactive? Depends on the isotope.
Steph - 22 Feb 2005 16:03 GMT >> I'd be interested in everyone's views on this article. >> I think it is one of the most important articles in the medical [quoted text clipped - 6 lines] > > If a similar calculation was performed for radiotherapy --------? De Vita did it, Peter. For every 100 cancers cured, surgery cures about 55, radiotherapy about 40, and chemotherapy about 5..................
Lance - 25 Feb 2005 00:50 GMT Steph said the following on 2/21/2005 8:47 PM:
> I'd be interested in everyone's views on this article. > I think it is one of the most important articles in the medical literature [quoted text clipped - 6 lines] > Graeme Morgan*, Robyn Wardy, Michael Bartonz > Clinical Oncology (2004) 16: 549e560 I read the paper. As a husband of a BC patient, it makes me very depressed.
Lance *****
J - 27 Feb 2005 19:47 GMT > Steph said the following on 2/21/2005 8:47 PM: > > I'd be interested in everyone's views on this article. [quoted text clipped - 9 lines] > > I read the paper. As a husband of a BC patient, it makes me very depressed. Did your wife not have radiation therapy? Yes, it is depressing, but not surprising to me or anyone whose read Steph's posts, over the years. He's consistently reminded them about radiation therapy. He's consistently asked them to "be sure you know the goal when considering treatment" (and especially when someone asks or mentions a chemo...) and he's quick to point out if a poster has a type that does respond to chemo. J
Steph - 01 Mar 2005 05:57 GMT > Steph said the following on 2/21/2005 8:47 PM: >> I'd be interested in everyone's views on this article. [quoted text clipped - 13 lines] > Lance > ***** Why depressed? Early stage breast cancer carries a very good prognosis. The message of the paper is that chemo only contributes a bit to that very good prognosis
_danyzinha_3392@duskmail.com - 22 Mar 2005 16:55 GMT steph@vancouver.island wrote:
> Why depressed? > Early stage breast cancer carries a very good prognosis. The message of the > paper is that chemo only contributes a bit to that very good prognosis Thanks!
_danyzinha_3392@duskmail.com
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