Thursday, March 9, 2017

Obstacle to Knowledge: Barry Marshall



“The greatest obstacle to knowledge

is not ignorance;

it is the illusion of knowledge”.

Barry Marshall



I was visiting my good friend in Fremantle in Perth. He was apologetic that Perth is not really near anywhere and all they have is beach and mining.

Sharks too.

He need not have apologised. I was happy to be near where one of the greatest medical breakthrough since Koch’s TB  over a hundred years ago: Helicobacter pylori.

The temperature was in the mid 40s and the plants were unusual!



© Am Ang Zhang 2013


© Am Ang Zhang 2013



© Am Ang Zhang 2013




© Am Ang Zhang 2013


The Nobel Prize in Physiology or Medicine 2005: "for their discovery of the bacterium Helicobacter pylori and its role in gastritis and peptic ulcer disease"

 



Peptic ulcer – an infectious disease!
This year's Nobel Prize in Physiology or Medicine goes to Barry Marshall and Robin Warren, who with tenacity and a prepared mind challenged prevailing dogmas. By using technologies generally available (fibre endoscopy, silver staining of histological sections and culture techniques for microaerophilic bacteria), they made an irrefutable case that the bacterium Helicobacter pylori is causing disease. By culturing the bacteria they made them amenable to scientific study.
In 1982, when this bacterium was discovered by Marshall and Warren, stress and lifestyle were considered the major causes of peptic ulcer disease. It is now firmly established that Helicobacter pylori causes more than 90% of duodenal ulcers and up to 80% of gastric ulcers. The link between Helicobacter pylori infection and subsequent gastritis and peptic ulcer disease has been established through studies of human volunteers, antibiotic treatment studies and epidemiological studies.
Helicobacter pylori causes life-long infection
Helicobacter pylori is a spiral-shaped Gram-negative bacterium that colonizes the stomach in about 50% of all humans. In countries with high socio-economic standards infection is considerably less common than in developing countries where virtually everyone may be infected.
Infection is typically contracted in early childhood, frequently by transmission from mother to child, and the bacteria may remain in the stomach for the rest of the person's life. This chronic infection is initiated in the lower part of the stomach (antrum). As first reported by Robin Warren, the presence of Helicobacter pylori is always associated with an inflammation of the underlying gastric mucosa as evidenced by an infiltration of inflammatory cells.
The infection is usually asymptomatic but can cause peptic ulcer
The severity of this inflammation and its location in the stomach is of crucial importance for the diseases that can result from Helicobacter pylori infection. In most individuals Helicobacter pylori infection is asymptomatic. However, about 10-15% of infected individuals will some time experience peptic ulcer disease. Such ulcers are more common in the duodenum than in the stomach itself. Severe complications include bleeding and perforation.
The current view is that the chronic inflammation in the distal part of the stomach caused byHelicobacter pylori infection results in an increased acid production from the non-infected upper corpus region of the stomach. This will predispose for ulcer development in the more vulnerable duodenum.


How to prove it: He drank the bacteria!

You could say that. I drank the bacteria and at first I was okay. But instead of being perfectly well and having a silent infection, after about five days I started having vomiting attacks. Typically at dawn I would wake up, run to the toilet and vomit. And it was a clear liquid, as if you had drunk a pint of water and regurgitated it straight back. Not only that, there was no acid in it. I remembered from my medical student days that if you have a meal where you drink so much beer that it’s coming back up straight away, it doesn’t have any acid in it. I knew there was something unusual about vomiting and not having acid.

                                                                                        Barry Marshall   

Difficult 10 years:
The medical establishment was difficult to persuade - everyone accepted that ulcers were caused by acid, stress, spicy foods, and should be treated by drugs blocking acid production. The big Pharmas were not happy to see any change as patients will have to take medication for life.


He went to the US to try and persuade the US doctors.

A big battle was still going on. I went to America to fight the battle there, because unfortunately the American medical profession was extremely conservative: ‘If it hasn’t happened in America, it hasn’t happened’. We needed people in the United States to take the treatment which we had developed.

Getting Personal:

The personal stuff was usually said behind my back, and my wife used to catch a bit of it. For example, I was at a conference, presenting our work. By then I had a few converts, who would be saying, ‘Oh, Barry, this is exciting. What are you going to do next?’ So they would talk to me, but 90 per cent of the audience wouldn’t know enough about it. And my wife would be on the bus tour with all the other wives, sitting in behind some of them. One wife would be saying to another one, ‘My husband said he couldn’t believe it. They had that guy from Australia talking about bacteria in the stomach. What a load of rubbish. This drug company’s reputation is mud’ ‑ because that company would be funding the bus tour at the conference. So things like that used to go on behind the scenes.


Finally:

It wasn’t settled until people did a truly double-blind study, using an acid blocker and also amoxicillin and a third antibiotic called tinidazol. All of those antibiotics could be given in a placebo, so one group of patients could take the ‘real’ antibiotics and the others would take antibiotics that were absolutely identical but were ‘fake’, and even the doctors didn’t know which patient was getting which treatment. That trial was done in Austria and was then published in America, in the New England Journal [of Medicine], which would have the most stringent criteria for medical research.
One year later, at a big think-tank in Washington to which I was invited, it was declared proven: ‘The treatment for ulcers is now antibiotics.’ That was vindication, in effect. The implication, once you say that in the United States and the NIH [National Institutes of Health] or somebody like that puts a document out and everyone accepts it, is that you have to follow it. In 1994 there were thousands of professors and scientists in the US making a living off Helicobacter.
“Ideas without precedent are generally looked upon with disfavour 
and men are shocked if 
their conceptions of an orderly world are challenged.” 

Bretz, J Harlen 1928. Dry Falls-Thinking Outside The Box

Also, thinking out of the box can be a good idea. Sometimes it’s better not to know all the dogma, all the things about a very difficult disease. If it’s very difficult, that means people have been working on it for years and they haven’t figured out the cure, which means they haven’t figured out the cause. So having all that knowledge that’s been accumulated in the last 10 or 20 years is really not an advantage, and it’s quite good to go and tackle a problem with a fresh mind when no-one else has had any luck.
                                                                                      Barry Marshall

Wednesday, March 1, 2017

NHS Original: Rose or what?

Juliet:

What's in a name? that which we call a rose
By any other name would smell as sweet


©Am Ang Zhang 2016


Call it what you may, but the Internal Market is a pre-sale of NHS move. Looks like there is a realisation that NHS Original will still be loved by most of us.


Time was:




… When I was employed by a Regional Health Authority and seconded to a local Hospital. Consultants were thus “protected” though we hardly “whistle-blowed” and in those days only really “bad” doctors got suspended.


…  When GPs would write personally to a named Consultant and the Consultant would take pride in providing the consultation and reply personally.

…  When medical secretaries would take short hand and they took pride in what they did for a low pay, but it was for the common good.

…  When junior doctors would learn not only from consultants but from experienced nurses and sisters (yes, sisters).

…  When we accepted patients transferred back from private hospitals because the patients’ insurer dumped them or the private hospitals could no longer cope.

…  When the only cancelled appointments were those with the wives, husbands, or family: patients always came first. One Christmas day I took a present to a young patient in hospital before going to friends for lunch. The family waited in the car.

… When we were respected and we knew it, and we were all proud of our NHS.





England then had 14 Regional Health Authorities.


…  Good doctors get suspended left, right and centre, for whistle-blowing or whatever.

…  GPs cannot refer to named consultants, and in the case of psychiatry, to any consultants at all, but to a faceless committee.

…  Appointments get cancelled many times as none were genuine appointments in the first place, but only given to satisfy the Patient’s Charter.

…   We have a worst NHS structure than ever, with years of management expert advice only draining our limited resources.  Note that the management experts collapsed the banks and we, the people, had to rescue them. 

NOW:
There are 32 Clinical Commissioning Groups (CCGs) in London. Each CCG is a statutory NHS body with its own governance arrangements; these vary according to its Constitution. CCGs are membership organisations of the practices within their boundaries. They are responsible for meeting the health needs of their populations and their main focus is on local issues.
I know, the old days were not perfect, but things worked well enough and management was only 6% of total NHS spend. In 2005 it was at least 14% but we do not know as those who knew did not want us to know. 



Like this quote: 

37. Whatever the benefits of the purchaser/provider split, it has led to an increase in transaction costs, notably management and administration costs. Research commissioned by the DH but not published by it estimated these to be as high as 14% of total NHS costs. We are dismayed that the Department has not provided us with clear and consistent data on transaction costs; the suspicion must remain that the DH does not want the full story to be revealed. We were appalled that four of the most senior civil servants in the Department of Health were unable to give us accurate figures for staffing levels and costs dedicated to commissioning and billing in PCTs and provider NHS trusts. We recommend that this deficiency be addressed immediately. The Department must agree definitions of staff, such as management and administrative overheads, and stick to them so that comparisons can be made over time.



"Whatever the benefits of the purchaser/provider split, it has led to an increase in transaction costs, notably management and administration costs. Research commissioned by the DH but not published by it estimated these to be as high as 14% of total NHS costs. We are dismayed that the Department has not provided us with clear and consistent data on transaction costs; the suspicion must remain that the DH does not want the full story to be revealed. We were appalled that four of the most senior civil servants in the Department of Health were unable to give us accurate figures for staffing levels and costs dedicated to commissioning and billing in PCTs and provider NHS trusts. We recommend that this deficiency be addressed immediately. The Department must agree definitions of staff, such as management and administrative overheads, and stick to them so that comparisons can be made over time."

If reliable figures for the costs of commissioning prove that it is uneconomic and if it does not begin to improve soon, after 20 years of costly failure, the purchaser/provider split may need to be abolished. 

                                                                                                     House of Commons


If the new government really wants to care for the people of this country and I think they do, they have to start taking advice from where it is offered FREE, from genuine people who love to see the NHS work.

Our NHS is not a BUSINESS, and should never be, as patients are not, and should never be treated as commodities.


Pass the patients back to us: the doctors and nurses.