Creativity in Surgery

    Tirone E. David
  University of Toronto
CREATIVITY

1. Genius theory
Leonardo da Vinci

  1452 - 1519
Works of Leonardo da Vinci
CREATIVITY

1. Genius theory

2. Stepwise, logical evolution of new
   ideas, products, operative procedures,
   etc…
Model of the DNA

 Watson & Crick
Nature 1953; 171:737-8
"Father of Genetics"
Gregor Mendel    Son of a farmer who became a
                catholic monk, conducted an
                experiment that involved growing
                thousands of pea plants, which
 1822-1884
                led to the discovery of genes. His
                ideas were published in 1866 but
                went largely unrecognized until
                1900.
Virulent
                       +                     = Death
Frederick Griffith         Pneumococcus
  1881 - 1941
                           Non-virulent
                       +                     = Live
                           Pneumococcus


                           Heated virulent
                       +                     = Live
                           Pneumococcus


                           Non-virulent +
Experiments with       +   heated virulent    = Death
Pneumococcus in 1928       Pneumococci
Non-virulent
                       ++                  = Death
 Oswald Avery            heated
  1877 - 1955           virulent
                        Pneumococci +
                         Non-virulent
                         Virulent with
                         destroyed lipids,
                       + ribonucleic acids, = Death
                         carbohydrates,
                         and proteins

                           Non-virulent +
                           Virulent with
                       +   destroyed          = Live
                           deoxyribonucleic
Experiments with           acids
Pneumococcus in 1935
Erwin Chargaff   In 1950 he concluded that there must
  1905-2002      be as many types of DNA as there are
                 different species. The number of
                 purine
                 bases (adenine and guanine) was equal
                 to the number of pyrimidine bases
                 (cytosine and thymine). The number of
                 adenine bases was equal to the number
                 of thymine bases and the number of
                 guanine bases was equal the number of
                 cytosine bases.

                 Chargaff’s rule: A = T, and G = C
Linus Pauling
      1901-1994




In May 1951, he described the structures of a
number of proteins, including the structure of
the single most important basic form of protein
chain, the alpha helix (a hydrogen-bonded
helical chain that is a structural component of
most proteins).
Cavendish Laboratory       Randall’s Laboratory
   Cambridge                 King’s College




James       Francis     Rosalind      Maurice
Watson      Crick       Franklin      Wilkins
 1928-      1916-2004    1920-58       1916-2004
Rosalind Franklin   Franklin’s x-ray
    1920-58         diffraction of DNA
Watson and Crick

Original Model of
     DNA



  Nature, 1953
Nobel Prize of Physiology or Medicine
               1962




 Francis Crick   James Watson   Maurice Wilkins

  1/3 prize       1/3 prize        1/3 prize
Rosalind Franklin
Died in 1958 at 37 years   Franklin’s x-rays
of age of ovarian cancer   diffraction of DNA
1953 – Watson & Crick
   1952 - Franklin
   1951 - Pauling
  1950 - Chargaff
    1935 - Avery
   1928 - Griffith
   1866 - Mendel
Leonardo da Vinci


“The Paragon of Creativity”
Thomas Alva Edison
    1847 - 1931

                  “Creativity is 1% inspiration
                         and 99% perspiration”
Creative People


Skillful
Self-motivated
Knowledgeable
Creativity results from the interaction of
a system composed of three elements:

           Domain
           Field
           Person
Domain is an area of our culture

Examples of domains:
         Medicine
         Heart valve surgery
         Mitral valve surgery
Field = gatekeepers of a domain

Without the assessment of competent outsiders there is no
reliable way to decide whether the claims of a self-styled
creative person are valid.
Person

The individual that is able to create a new idea, product, or
an operation
Left Ventricular Rupture After
MVR




      Treasure RL et al. Chest 1974;66:511
Left Ventricular Rupture After
MVR
Reconstruction of the Mitral Annulus
Reconstruction of the Base of the LV
Reconstruction of the Base of the LV
Reconstruction of the Base of the LV
Reconstruction of the Base of the LV
Reconstruction of the Base of the LV
Reconstruction of the Base of the LV
Post-Acute Myocardial Infarction VSD
     Repair by Infarct Exclusion
Post-Acute Myocardial Infarction VSD
     Repair by Infarct Exclusion
Endocardial patch for LV rupture


       Reconstruction the mitral annulus


             Reconstruction of the base of the heart


                  Reconstruction of the LV wall
Peer-reviewed publications

Left ventricular rupture after mitral valve replacement: endocardial repair with
pericardial patch.
David TE. J Thorac Cardiovasc Surg. 1987 Jun;93(6):935-6

Reconstruction of the mitral anulus.
David TE, Feindel CM. Circulation. 1987 Sep;76(3 Pt 2):III102-

Postinfarction ventricular septal rupture: repair by endocardial patch with infarct
exclusion.
David TE, Dale L, Sun Z. J Thorac Cardiovasc Surg. 1995 Nov;110(5):1315-22


.... Plus 28 other publications on this topic
Surgical Creativity

•   A process that unfolds during a lifetime
Mitral Valve Surgery

LV function after MV repair is better than after MVR


       Gore-Tex for replacement of chordae tendineae


               Techniques of MV repair in Barlow’s valves
Aortic Valve Surgery

 Stentless aortic valves
Aortic Valve Surgery
Aortic valve sparing operations
Creativity results from the interaction of
a system composed of three elements:

           Domain
           Field
           Person
Surgical Creativity

Arises from the synergy of many sources and
not from the mind of a single person
Outliers:


Albert Einstein
IQ 150

Christopher Langan
IQ 195
Christopher Langan
Born in San Francisco, 1952

“The smartest man in America"
       IQ = 195 - 210

He rose to prominence in 1999
while working as a bar bouncer
in Long Island


The Cognitive-Theoretic Model
of the Universe
Gladwell:

“No one –not even rock stars,
not professional athletes, not
software millionaires, and not
even geniuses – ever makes
it alone”
The End of Europe’s Middle Age
Florence, Italy – Renaissance’s Birthplace
Where do creative ideas come from?

Come from the past
Come from previous knowledge and experiences
Creative works begin in continuity with the past
Surgical Creativity

Arises from the synergy of many sources and
not from the mind of a single person
“Creativity is 1% inspiration
 and 99% perspiration”
              Thomas Edison
Thank you

Dr. Tirone David: "Criatividade em Medicina".