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Revista médica de Chile

versión impresa ISSN 0034-9887

Rev. méd. Chile vol.143 no.12 Santiago dic. 2015

http://dx.doi.org/10.4067/S0034-98872015001200013 

Historia de la Medicina

 

The controversial experiments on the intravenous administration of drugs (and air!) during the cholera epidemic of 1867 in Italy

Los controvertidos experimentos usando drogas y aire intravenoso durante la epidemia de cólera de 1867 en Italia

 

Marco Cascella

Department of Anesthesia, Cardiology and Endoscopy. National Cancer Institute “G. Pascale” Foundation, Naples, Italy

Correspondencia a:


Cholera ravaged many American and European cities in the nineteenth century. Likewise, Italy was struck by six epidemics since the morbus first appeared in 1835-1837. After the International Sanitary Conferences held in Paris in 1851, there was a decrease of the cases due to consolidation of the city in terms of public and private health. Nevertheless, due to the lack of alternative and innovative remedies, the mortality remained unchanged, affecting more than 60 percent of patients. The city of Brescia in Northern Italy was severely hit by the epidemic of 1867. Not being able to implement effective therapeutic strategies, the administration of drugs like quinine and strychnine was proposed to be done intravenously. The results of intravenous injections were ominous, and all the patients died of ‘sudden death’. Alhtough the academic authorities forbade further experiments, some physicians carried on a long trial using test animals and mental patients as ‘guinea pigs’.

Key words: Administration, intravenous; Cholera morbus; Gastroenteritis; Mentally ill persons.


El cólera arrasó muchas ciudades americanas y europeas durante el siglo XIX. Italia tuvo seis epidemias después de la primera aparición de la enfermedad en 1835-1837. Después de las Conferencias Sanitarias Internacionales de Paris en 1851, hubo una disminución de casos debido a una consolidación de la salud pública y privada. Sin embargo, debido a la falta de tratamientos innovadores, la mortalidad no cambió, afectando más del 60% de los pacientes. La ciudad de Brescia en el norte de Italia fue afectada por la epidemia de 1867. Ya que no se pudieron implementar terapias efectivas, se propuso usar quinina y estricnina por vía intravenosa. Esto tuvo resultados ominosos ya que todos los pacientes tuvieron una muerte súbita. A pesar que las autoridades académicas prohibieron nuevos experimentos, algunos médicos hicieron un ensayo prolongado usando animales de experimentación y pacientes mentales. El fracaso de esta experiencia estimuló el desarrollo de la bioética.


 

Cholera and Cholera Morbus

Cholera is an acute infectious disease of the small intestine which can lead to dehydration and even death if untreated. Although the classic symptom is large amounts of watery diarrhea, vomiting and muscle cramps may also occur. Diarrhea can be so severe that it leads within hours to severe dehydration and electrolyte imbalance. This may result in sunken eyes, cold skin, decreased skin elasticity, and wrinkling of the hands and feet. Nowadays cholera remains both epidemic and endemic in many areas of the world, occurring mainly in the developing world. It affects an estimated 3-5 million people worldwide, and causes 58,000-130,000 deaths per year1. Transmission is mostly from fecal contamination of food with Vibrio cholerae. This microorganism was first isolated in 1854 by the Italian anatomist Filippo Pacini (1812-1883)2 who also provided accurate therapeutic indications, recommending in extreme cases the intravenous injection of 10 g sodium chloride in a litre of water3. However, Pacini’s finding was ignored and the discovery was attributed to the German microbiologist Robert Koch (1843-1910) who publicized it only 30 years later. Posthumous recognition came to Pacini 82 years after his death when the Judicial Commission of the International Committee on Bacteriological Nomenclature adopted ‘Vibrio cholera. Pacini 1854’ as the correct name of the cholera vibrio4.

The word “cholera” is an historical term used in the 19th and early 20th Centuries to describe both cholera and a number of other gastrointestinal diseases (sometimes epidemic) that resembled cholera5. Nevertheless, before the discovery of the pathogen it was impossible to discriminate the various forms of gastroenteritis. Thus, in several treaties on this topic written in the 19th Century the terms cholera and cholera morbus were used as synonyms6, and in this brief historical report these terms have been used interchangeably, even if it is not a correct methodology, as the purpose is the description of specific experiments rather than the analysis of the cause of the disease.

Cholera epidemics

Cholera ravaged many American and European cities in the 19th Century, as a consequence of the colonization of India by the British Empire. Until then the disease had been confined in the India region between the Ganges and Brahmaputra rivers. Likewise, Italy was struck by six epidemics since the morbus first appeared in 1835-1837.

The International Sanitary Conferences, forerunners of the World Health Organization, were first convened in Paris in 18517 to discuss the contagiousness of cholera. European scientists and public health officials attended the meetings, discussing the cause of the disease, the effectiveness of the quarantine and other strategies of public hygiene and therapy8. The debate between the proponents of contagionism (the theory that disease was spread from person to person) and anticontagionism was particularly heated. Nevertheless, because there were no alternative and innovative remedies, physicians continued to prescribe characteristic treatments like bleeding or opium, flowers of zinc, astringent, enemas, hot baths, and the use of alcoholic beverages, such as rum and mulled wine9. It is well known that homoeopathic remedies were also used, for example at the London Homoeopathic Hospital10.

As a consequence, despite the decrease of the cases due to consolidation of the city in terms of public and private health, the mortality remained unchanged, affecting more than 60 percent of the patients11.

After the terrible epidemics of 1835-37 and 1854-55, and the more subtle and localized one of 1849, a new cholera epidemic broke out in Italy in 1865, lasting until 1867. This latter was the fourth cholera pandemic, causing over 113,000 deaths (Figure 1)12.

 

Figure 1. Lesson on infectious diseases. Italian woodblock-printed illustration.
Second half of the 19th century. Property of the author.

Experiments on Cholera Morbus in Italy

In 1836, the city of Brescia, in Northern Italy, was severely hit by this epidemic, as well as by the first cholera outbreak13. In the impossibility of implementing effective therapeutic strategies, the administration of drugs deemed as most effective -quinine and strychnine- was proposed to be done via the veins.

The experiments were made possible thanks to the recent introduction of metal needles and glass syringes, by Alexander Wood (1817-1884) and Charles Gabriel Pravaz (1791-1853).

Several remedies were tested, so the Italian physician Natale Zoja (1867-1912) tried the hypodermic and intravenous administration of alcohol.

Doctor Zoia had injected 55 drops of a solution of alcohol and distilled water in the basilic vein in a 49 year old farmer… who died four hours later14.

Another physician, Faustino Gamba (1839-1896), chief of the Brescian Choleric Lazaretto since 1867, administered strychnine intravenously in many of his patients. His experimental results, however, have never been revealed15.

The Brescian academic authorities proposed the experimentation with the combined intravenous administration of hydrochloric acid and hydrogen sulfide, which “preserve the nervous system and allow the expulsion of the choleric bane14.

During the 1867 epidemic, one of the major Brescian medical authorities was Rodolfo Ridolfi16. He was born in 1827 in Bogliaco, a town in Northern Italy near the city of Brescia. His father Giulio, a member of an ancient and important family of doctors and soldiers, was also a highly regarded physician and surgeon at the Women’s Hospital of Brescia, a very old and prestigious hospital. Indeed, the Ospedale della Pietà di Brescia (Piety Hospital of Bresca) was built in 1523 to accommodate patients suffering from infectious diseases. In the mid-nineteenth Century, the central body of this hospital was enlarged by annexing the adjacent convent of San Domenico, and then this structure was used as a “women’s ward”, changing its name to ‘Women’s Hospital’.

Rodolfi was living in a historical context of great importance for the nascent Italy. Thus, during his university years, he took part in the First Italian War of Independence from Austrian domination in 1848, and along with other university students he formed a battalion called ‘The Crusaders of Padua’, which operated mainly in defense of Venice from the Austrian siege.

Despite the war and the defeat of the insurgent Italian patriots, Rodolfi managed to graduate in medicine in September of the same year (University of Pavia) and began to serve in the Women’s Hospital, following his father’s footsteps. His work as a doctor was highly appreciated and, in 1854, he was appointed Chief Physician at the age of 27. When the Austrian government closed the University of Pavia (1849-50), he became Professor of Anatomy at the School of Medicine located at San Domenico Hospital17.

Rodolfi was a firm believer of the value of trying new routes of administration in both patients and vivisected animals, claiming they were “the only scientific methods capable of giving a new impulse to medical sciences14.

Against the cholera epidemic, Rodolfi tried the method proposed by Beral in 1840 and popularized in Italy by the Neapolitan Domenico Guglielmi. This remedy involved the oral administration of ammonium citrate, in solution with ammonia18.

During the administration of citrate of iron do not drink any beverage which would promote more abundant and unrestrained vomiting... in order to satisfy the insatiable thirst that torments the sufferer, it is possible to eat only scraps of snow... in severe cases add some dollops of good wine”14,19.

After an initial enthusiasm the Brescian physicians realized the futility of Beral’s therapy, also taking in consideration statistical reports showing a high rate of mortality in other Italian regions where the same remedy was being administered20.

Thus, doctor Rodolfi and other physicians focused on the intravenous route of administration of drugs. However, the results of intravenous injections were ominous, and all the patients died of ‘sudden death’. Therefore, the academic authorities declared that it was the doctor’s duty to “abstain from the practice to stop the evil from increasing14. Despite this prohibition the experiments on the intravenous administration did not cease and Rodolfi carried on a long “trial” using test animals in which he injected laudanum, strychnine, alcohol solutions or hydrogen peroxide, using a Pravaz syringe directly on their jugular veins. After the administration of substances the animals were sacrificed for pathologic findings.

During one of these experiments, Rodolfi injected some air into the jugular vein of a dog. To everyone’s amazement, the dog did not die. Rodolfi tried to gradually increase the dose of air into the jugular vein, first administering two Pravaz syringes and then three. Also in this case, the dog resumed its viability after a first phase of stunning14. These observations convinced Rodolfi that air administration into the veins could be deadly only in very large quantities and especially if the administration coincided with a deep breath of the animal, which would have “pushed the big air bubble into the lungs”. The experiments with the intravenous air were accompanied by a series of pathologic findings on the effects of asphyxia, and Rodolfi observed different organ damage, even in the brain parenchyma.

Unfortunately, these studies, lacking a proper controlled methodology and far from following the dictates of modern bioethics, were also conducted in humans. After a series of unsuccessful experiences in patients it was ordered that the experiments had to be performed only in asylums, using the hospitalized mental patients -then called ‘brutes’- as ‘guinea pigs’14.

The criticism

The criticisms leveled at the proponents of testing in the alienated were ferocious. Rodolfi’s fiercest opponent was Giovanni Battista Navarrini. In a manuscript published in the Yearbook of the University of Brescia in 1874, he stated that the object of the research (i.e. cholera morbus), had an unidentified genesis and, therefore, it was inconceivable to perform tests on humans without a precise ‘sense of direction’21. Summarizing, Navarrini clearly exposed the lack of faithfulness of Rodolfi’s experiments to the strict criteria of the scientific method.

According to Navarrini it would have been more straightforward to produce an experimental model of cholera (in guinea pigs) on ​​which to study the intravenous route of administration, using drugs with a precise dosage planning20. Unfortunately, we do not know if these experiments had actually been made since there are no traces about them in university documents.

In spite of the criticisms, Rodolfi kept performing his experiments in mental patients. Indeed, he published the results of one full year of research (from August 1874 to August 1875) on blood transfusion, performed in the Mental Hospital of Brescia (Figure 2)22,23.

 

Figure 2. The Provincial Psychiatric Hospital of Brescia (1893-1978), Nothern Italy.

Rodolfi’s work is an example of the experimental medicine of the 19th Century, often far distant from basic rules of ethics and humanity. However, the strong criticism by many scientists of his time is a positive sign of the rise of a stronger social conscience.

 

References

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Received september 30, 2015; accepted november 3, 2015.

Correspondencia a: Dr. Marco Cascella.
Via Aliperta, 11-80049-Somma Vesuviana Napoli, Italia. Phone and Fax: 0039 081 590 3 778.
m.cascella@istitutotumori.na.it

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