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REVISING THE EXTENSION UNIT ON SURGERY

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Label your picture to show the key features of a modern surgical operation ... Sterilised instruments. Blood for transfusions. Trained doctors and nurses ... – PowerPoint PPT presentation

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Title: REVISING THE EXTENSION UNIT ON SURGERY


1
REVISING THE EXTENSION UNIT ON SURGERY
19th century surgery
2
An operation in the early 19th century
A painting showing a surgical operation in 1800
..
..
TASK. Describe the problems faced by surgeons
and patients at the beginning of the 19th
century
3
Label your picture to show the key features of a
modern surgical operation
4
How many of these did you get ?
  • How many of these did you get ?
  • Sterilised instruments
  • Blood for transfusions
  • Trained doctors and nurses
  • Rubber gloves, plastic gowns , hats and masks
  • Germ free ( aseptic operating room
  • Electrical power
  • Anaesthetics
  • Specialists to operate equiptment and nurses

5
The problems
BLEEDING
PAIN
INFECTION
6
James Simpson This is your life
I have a problem- ether has an unpleasant smell
and irritated peoples eyes and lungs and makes
them sick. What can I use ?
  • Born in Scotland in 1811
  • Trained as a doctor at Edinburgh University
  • Became professor of midwifery at Edinburgh in
    1839
  • Very concerned about the suffering of women
    during childbirth

I know about laughing gas and about experiments
using ether to numb pain
7
The solution chloroform was discovered in 1847
Professor Miller, a neighbour called on Simpson
the morning after the experiment in 1847. the
inhalers became bright-eyed and very happy. And
then crash! On awakening Dr Simpsons first
thought was This is far stronger and better than
ether
8
The Solution .Chloroform
A portable chloroform inhaler developed by John
Snow in the 1850s
9
Opposition to Simpsons work
  • It was new and untested . Was it safe ?
  • Doctors did not know what dose to give to
    different patients
  • There were moral and religious arguments the
    use of anaesthetics was said to be unnatural
    and against Gods will

10
  • Opposition to anaesthetics was eventually
    overcome
  • Use of anaesthetics became a standard part of
    surgical practice
  • Surgeons carried out more operations
  • Surgeons carried out more complex operations
  • BUT .surgery was not safer !
  • Until the acceptance of germ theory in the 1860s
    surgeons did not take any precautions to protect
    open wounds from infection.This was still a key
    problem which led to loss of life .

11
Joseph Lister This is your life
  • Born in 1827 in Yorkshire
  • Became Professor of Surgery at Glasgow University
    in 1860
  • Read Pasteurs writings
  • Read about the effects produced by carbolic acid
    upon the sewage of the town of Carlisle

His father was a medical pioneer who developed
improved microscopes.
He tried out carbolic acid on compound fractures
and it stopped infection He developed a carbolic
spray which was used in operating theatres
12
Some opposition
Many doctors believed that speed was the most
important factor in surgery. The use of carbolic
acid slowed them down and was seen as a nuisance
even dangerous
Some doctors did not believe in germ theory
Where are these little beasts? Show them to us?
Some doctors did not like their hands and clothes
being soaked in the acid
Lister kept trying to develop his ideas trying
out more substances. People though he kept
changing his mind because his methods were not
working
13
RESULTS reading tables
14
Karl Landsteiner This is your life
  • Discovered in 1901 that humans had 3 types of
    blood group which he called A, B and 0
  • Only some of these could be transferred from a
    patient of one group to another

15
Other developments
  • Storing blood - in 1914 it was found that sodium
    citrate stopped blood clotting in a syringe
  • Blood cells were separated from the liquid part
    and were stored in bottles . They could be
    diluted with saline solution when needed
  • Large blood banks were set up in the US and
    Britain during the second world war
  • Transfusion service

16
Other key developments in surgery
  • Plastic surgery
  • Brain surgery
  • Transplant surgery
  • Keyhole surgery
  • Improved anaesthetics and antiseptics

17
Sample analysis question
  • How important was the development of anaesthetics
    to improvements in surgery in the 19th century?

18
Can you identify any of the following in the
model answer?
  • Find the link words
  • Find the benefits of using anaesthetics
  • Find the limitations of anaesthetics in the 19th
    c.
  • Is this a balanced argument ?
  • Is there an overall judgement ?
  • What level would you give this ?

19
  • Anaesthetics was important in the history of
    surgery
  • because without the problem of pain , patients
    were more willing
  • to have operations to treat their illnesses and
    more operations
  • were carried out . This meant that surgeons
    could develop more
  • experience . Moreover , because patients were no
    longer
  • wriggling about in agony and having to be held
    down all the time ,
  • surgeons did not have to operate so quickly and
    consequently
  • they could spend longer on the operations
    without making
  • mistakes . This led to more accurate operations .
    In addition this
  • also resulted in more complicated operations
    being carried out
  • and surgeons gained more knowledge about
    difficult operations .

20
  • However , the death rate was still high because
    until Joseph Lister
  • developed antiseptics in the 1860s, only one of
    the problems of
  • surgery had been solved. In fact the death rate
    actually increased
  • because more complicated operations resulted in
    surgeons going
  • deeper into the body and yet filthy conditions
    still existed and
  • germs got into the wounds . This meant that many
    more
  • people died of infections. In addition surgeons
    were still not sure
  • about the dosage of the chemicals and how much
    chloroform to
  • give patients . A young girl called Hanner
    Greener died from an
  • overdose of chloroform whilst having her toe nail
    removed.
  • Furthermore, no one had yet solved the problem
    of what to do
  • when patients lost a lot of blood . This meant
    that blood
  • transfusions could not be carried out until Karl
    Lanndsteiner
  • discovered blood groups in 1901

21
  • Overall I think that the development of
    anaesthetics was
  • important and without this many of the high
    tech
  • developments in the 20th century would not have
    been
  • possible . However I think this was only one of
    the key
  • steps and that the development of antiseptics was
    more
  • important. This led to a greater reduction in
    the death
  • rate from people dying from infection . In
    conclusion ,
  • until the final problem of providing replacement
    blood
  • was solved, surgery was still a very risky
    procedure .
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