Medicine Unit 4 Flashcards
What were 2 significant medical developments for surgery in the 20th and 21 century?
- 1967 - Christian Barnard a South African heart surgeon performed the first heart transplant - the patient lived for 18 days
- 2007 - breakthrough in visual prosthetics with the release of the Argus II prosthetic eye
When was the first heart transplant in the UK?
1968
When was the first heart transplant performed? By who?
1967 by Christian Bernard
When was the Argus II prosthetic eye released?
2007
What were 2 significant medical developments for treatments in the 20th and 21 century?
- 1978 - doctors use IVF fertility treatment to help childless women become pregnant
- 1987 - MRI scanning is used to monitor brain activity - helped find brain tumours
When was the first MRI scan done?
1987
When was IVF first introduced?
1978
Who was the first ‘test tube baby’? When was this?
1978 - Louise Brown becomes the first ‘test tube baby’
What were 2 significant medical developments for beliefs in the 20th and 21 century?
- 1953 - Francis Crick and James Watson discover DNA - leads to development of gene therapy, genetic screening and genetic engineering
- 1990 - the Human Genome Project formally launches - aims to decode all of the genes in the human body and identify their roles
When was DNA discovered? By who?
1953 - Francis Crick and James Watson discover DNA
When was the Human Genome Project launched?
1990
What are alternative medicines?
Other way of treating illnesses or health conditions that don’t rely on mainstream, doctor dispensed medicines
What are examples of alternative medicines?
Herbal medicines and remedies
Aromatherapy and hypnotherapy
Acupuncture
Why are alternative medicines on a rise in the 21st century?
People have less trust in the government
There are many illnesses that there’s no current scientific cure for - people seek other methods
Drug resistance is on a rise - our bodies are becoming resistance to antibiotics overtime
What was the world’s first antibiotic?
Penicillin
Why were ‘magic bullets’ not considered as an antibiotic? What happened as a result of this?
They couldn’t kill staphylococcus (a type of bacteria) - many soldiers in WWI were killed by it
What did Fleming realise could kill staphylococcus?
Mould
What is penicillin made of?
Mould
How did Fleming discover penicillin?
On accident - he went on holiday and came back and mould had killed the staphylococcus sample
Who did Fleming inspire? What did they do?
2 Oxford university scientists - Florey and Chain
They set up a mould growing lab to test the penicillin on mice and humans
Who was the first person that successfully had penicillin?
A policeman called Albert Alexander
How many people were saved by penicillin in WWII? What happened as a result?
15% of people - because of this it was put into mass production
Why was Fleming significant in the development of medicine?
He discovered penicillin - first antibiotic that killed staphylococcus
He inspired other scientists to continue his studies and develop them
The discovery of penicillin saved 15% of lives in WWII and is currently used today to treat infections
Why was Fleming insignificant in the development of medicine?
He never tested penicillin on animals - couldn’t see if it worked properly
Florey and Chain were arguably more significant in developing penicillin
Why were Florey and Chain significant in the development of medicine?
They developed penicillin and tested it successfully on a human (Albert Alexander)
Penicillin is still used to treat infections today
What are some limitations of penicillin?
It’s ineffective against MRSA and other superbugs
Lots of people are allergic to penicillin
Many people bodies are building antibiotic resistance - meaning their bodies won’t react properly with penicillin so will be ineffective
How did the First World War impact the development of X-rays?
X-rays were used near battlefields to find exactly where the bullet was in a wounded soldier without cutting them open
They were used for broken bones and disease
How did the First World War impact the development of plastic surgery?
Skin grafts were used to treat severe facial wounds
Harold Gillies was one of the first surgeons to consider appearance when it came to treating wounds
By 1921, over 5000 servicemen had been treated
How did the First World War impact the development of blood transfusions?
1914 - Albert Hustin discovered how to stop blood from clotting - allowed for the storage of blood - prior blood couldn’t be stored as it clotted quickly so many lost lives due to blood loss
What were 5 developments made during the First World War?
- X rays - developed and used to find bullets
- Plastic surgery - skin grafts introduced
- Blood transfusions - blood could be stored now
- Army leg splint developed - elevated and extended a broken leg - helped bone knit together more securely
- Infected flesh was cut away and soaked in saline solution - stopped lethal wound infections
How did the Second World War impact the development of drugs?
Penicillin was developed in the years leading up to the war and was mass produced
1944 - enough penicillin was produced to treat all allied forces in Europe
Penicillin saved 15% lives
When was penicillin discovered?
1928
How did the Second World War impact the development of plastic surgery?
Archibald McIndoe used new drugs e.g. penicillin to protect infection when treating pilots with facial injuries
How did the Second World War impact the development of blood transfusions?
Blood could be kept fresh and useable for longer as the idea of it being stored was developed
1938 - the British National Blood Transfusion Service opened