2 Discovery of the importance of hygiene

It was at the Vienna General Hospital that Semmelweis began investigating the causes of puerperal fever, against the resistance of his superiors who believed it to be non-preventable. Semmelwise became the titular house officer of the First Obstetrical Clinic in July 1846, which had a neonatal mortality rate due to puerperal fever of 13.10%. This was a known fact and many women preferred to give birth to their children on the street than being brought there. The Second Obstetrical Clinic had a mortality rate due to puerperal fever of only 2.03%, however; both were located in the same hospital and used the same techniques, with the only difference being the individuals who worked there. The first was the teaching service for medical students, while the second had been selected in 1839 for the instruction of midwives.

The breakthrough for Semmelweis occurred in 1847 with the death of his friend Jakob Kolletschka from an infection contracted after his finger was accidentally punctured with a knife during a postmortem examination. Kolletschka's own autopsy showed a pathological situation similar to that of the women who were dying from puerperal fever. Semmelweis immediately proposed a connection between cadaveric contamination and puerperal fever and made a detailed study of the mortality statistics of both obstetrical clinics. He concluded that he and the students carried the infecting particles on their hands from the autopsy room to the patients they examined in the First Obstetrical Clinic. The germ theory of disease had not yet been developed at the time. Thus, Semmelweiss concluded that some unknown "cadaveric material" caused childbed fever. He instituted a policy of using a solution of chlorinated lime for washing hands between autopsy work and the examination of patients and the mortality rate dropped from its then-current level of 12.24% to 2.38%, comparable to the Second Clinic's.

3 Rejection by the medical establishment

Despite this dramatic result, Semmelweis refused to communicate his method officially to the learned circles of Vienna, nor was he eager to explain it on paper. Ferdinand von Hebra finally wrote two articles in his behalf but although foreign physicians and the leading members of the Viennese school were impressed by Semmelweis' apparent discovery the papers failed to generate widespread support. His observations went against the current scientific opinion of the time, which blamed diseases (among other quite odd causes) on an imbalance of the basic "humours" in the body. It was also argued that even if his findings were correct, washing one's hands each time before treating a pregnant woman, as Semmelweis advised, would be too much work. Nor were doctors eager to admit that they had caused so many deaths; indeed, they tended to claim that their profession was one divinely blessed and thus their hands could not be dirty.

During 1848 Semmelweis widened the scope of his washing protocol to include all instruments coming in contact with patients in labor and he statistically documented success in virtually eliminating puerperal fever from the hospital ward, leading Skoda to attempt to create an official commission to investigate the results. The commission proposal was ultimately rejected by the Ministry of Education due to a political conflict in the university and government bureaucracies. Semmelweis was an active liberal, but a conservative movement gained power in 1848 and in 1849 he was fired from his position. Skoda delivered an address on the subject in the Imperial and Royal Academy of Sciences in October of 1849, but Semmelweis had neglected to correct his friends' papers to make known their mistakes in describing his work. Semmelweis was finally persuaded to present his findings personally in 1850 with some success. However, Semmelweis abruptly left Vienna later that year to return to Pest, apparently due to financial difficulties, without notifying even his closest friends. This hasty decision ruined his chances to overcome the Viennese sceptics.

In Hungary, Semmelweis took charge of the maternity ward of Pest's St. Rochus Hospital from 1851 to 1857. His hand- and equipment-washing protocols reduced the mortality rate from puerperal fever to 0.85% there, and his ideas were soon accepted throughout Hungary. He married, had five children, and built a large private practice. He became chair of theoretical and practical midwifery at the University of Pest in July 1855. Semmelweis turned down an offer in 1857 to chair obstetrics in Zurich. Vienna remained quite hostile to him, however.

In 1861 Semmelweis finally published his discovery in a book, Die Ätiologie, der Begriff und die Prophylaxis des Kindbettfiebers. A number of unfavorable foreign reviews of the book prompted Semmelweis to lash out against his critics in series of open letters written in 1861-1862, which did little to advance his ideas. At a conference of German physicians and natural scientists, most of the speakers rejected his doctrine. One of them was Rudolf Virchow.

The establishment's failure to recognize his findings earlier led to the tragic and unnecessary death of thousands of young mothers, but he was ultimately vindicated. This case is sometimes put forward as an example of a situation where scientific progress was slowed down by the inertia of established professionals.

4 Breakdown and death

In July 1865 Semmelweis suffered what appeared to be a nervous breakdown, though some modern historians believe his symptoms may have indicated the onset of Alzheimer's disease or senile dementia . After a journey to Vienna imposed by friends and relatives he was committed to an insane asylum, the Niederösterreichische Landesirrenanstalt in Wien Döbling, where he died only two weeks later. Traditionally, he is said to have died the victim of a generalized blood poisoning similar to that of puerperal fever, which had been contracted from a surgically infected finger. According to an article in the Journal of Medical Biography by H. O. Lancaster, however, this is not true:

"Much biographical material has been written on Semmelweis, yet the true story of his death on 13 August 1865 was not confirmed until 1979, by S. B. Nuland. After some years of mental deterioration, Semmelweis was committed to a private asylum in Vienna. There he became violent and was beaten by asylum personnel; from the injuries received he died within a forthnight. Thus some dramatic theories have been destroyed, including that he was injured and infected at an autopsy, which if true would have been a wonderful case of Greek irony."

Only after Dr. Semmelweis's death was the germ theory of disease developed, and he is now recognized as a pioneer of antiseptic policy and prevention of nosocomial disease .

5 Related Topics

• Joseph Lister

6 External links

• NIH: Ignaz Semmelweis
• Catholic Encyclopedia entry
• John H. Lienhard: Ignaz Philipp Semmelweis
• Who Named it? Ignaz Philipp Semmelweis

Semmelweis, Dr. Ignaz Semmelweis, Dr. Ignaz Semmelweis

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