Wednesday 22 November 2023

Geriatrics- A Short History - II (Do The Evolution!!)...

Nassim Nicholas Taleb in his groundbreaking work ‘The Black Swan’ stated that Medicine was the sister of Philosophy & that it became scientific only during the 20th century. Before you agree or disagree with that, do read this post. The evolution of Geriatrics happened in fits & starts (as is the case with many specialities). Now let us look at the developments that happened in the rest of the 18th century & the 19th century (reading the previous blog post will definitely help)…

 

The Rest of the Eighteenth Century..

The misconception that old age was a disease held sway for most of the eighteenth century. Jakob Hutter in his doctoral thesis -‘That Senescence Itself is an Illness’, published in Germany in 1732, supported the prevailing idea of the times. He was heavily influenced by his eminent teachers, Friedrich Hoffman and Hermann Boerhaave. Hutter theorised that with ageing there’s a progressive hardening of all the fibres of the body starting from youth. This resulted in obstruction of blood supply which in turn led to stagnation & fatal putrefaction. So old age caused death by direct means, according to him. However, he strongly believed that this process could be modified by adopting a ‘correct lifestyle’, based on the principles propounded earlier by Galen & Francis Bacon. By emphasising that old age was a medical condition, Hutter paved the way for Geriatrics.

Pathological studies in the late 1700s, particularly by Giovanni Morgagni, failed to reveal the widespread changes posited by Hutter. Conversely, they showed local pathology in the majority of the older people on post-mortem examination. By the late eighteenth century, the concept that death in old age was due to one illness or the cumulative effect of many illnesses & not a general marasmus was established. ‘De Sedibus et Causis Morborum’ by Morgagni published in 1761 described that many diseases in old age, especially the chronic ones, can remain symptomless for years. Two centuries later this formed the basis of much clinical research on the unreported medical needs of the elderly.

American Physician Benjamin Rush, emphasised that old age was rarely the sole cause of death in his book ‘Account of the State of the Body and Mind in Old Age, with Observations on its Diseases and Remedies’ published in 17931.

 

The French Hospices, Pathological Analysis & Geriatrics (Nineteenth Century)..

France was the world leader in this area at the time. The basis for much of the research were the institutions known as ‘hospices’. They were set up by royal edict in the mid-seventeenth century to serve a range of functions, including prisons, asylums for the insane and residential homes for the elderly. They were transformed into primarily medical institutions after the French Revolution of 1789. They were not reserved exclusively for older patients, but admitted those of all ages with chronic disability, including children.

Research in age related diseases was buoyed up by the advances made in Medicine in France between the mid eighteenth & mid nineteenth century. Much of it was based on pathological studies, relating the findings to clinical presentation wherever possible, what in modern Medical jargon is called Clinicopathological Correlation. One of the earlier, more perceptive studies was published in 1835, on Pneumonia by Hourmann and Dechambre. They noted how the disease could be present in older people, but exhibit few physical symptoms. Charles Durand-Fardel’s practical treatise, ‘Traité Clinique et Pratique des Maladies des Vieillards’, was published in 1854. It covered the whole field of disease in old age, while attempting to link pathology with accurate diagnosis, & was way ahead of it’s time.

Although Jean Martin Charcot enjoyed a higher profile in the field of medicine in old age, his ‘Leçons Cliniques sur les Maladies des Vieillards’, published in 1866, contained only two lectures specifically on old age and three on clinical thermometry in older people, while the remaining were on Rheumatism and Gout. He noted that specific diseases existed in older people, such as Osteomalacia and Brain atrophy, that the ‘gravest disorders manifest themselves by slightly marked symptoms’ and that conditions occurring at any time of life ‘present special characteristics’ in later life.

By the middle of the century, medical men working in the hospices called for the recognition of old age as a distinct period of life which required a specific approach and a special branch of medicine, ‘Médecine des Vieillards’, with its own training and therapy. These calls took place at a time when the practice of specialisation within medicine was firmly established in France and, by the end of the nineteenth century, had been introduced into the curriculum in the Paris Medical School. In the mid-1850s however, only 5–12% of physicians declared a specialty designation; the most common were surgical, namely General Surgery, Dentistry, Obstetrics, Orthopaedics and Ophthalmology, but Psychiatry was also popular. Despite the existence of specialty hospitals for treating older people, Geriatric Medicine was not considered to be a recognised discipline.

Weisz, a Medical Historian, has suggested three possible reasons for this:

  • The lack of specific therapeutic or diagnostic procedures
  • The inevitability and incurability of diseases of old age
  • The fact that the elderly generated little public interest

In addition, research failed to progress, mainly because it had been pathologically based. Few therapeutic possibilities existed to manage disease in old age and Physicians at that time did not interact with older patients to any great extent, as they only had contact with the small proportion who were admitted to the hospices. As medical interest in older people declined, Geriatric Medicine did not become a specialty in France until after 19501.

 

Meanwhile, in England…

George Edward Day (1815–1872), a Physician, wrote a common sense book from the Physician’s perspective on aging in 1848-‘A Practical Treatise on the Domestic Management and Most Important Diseases of Advanced Life’. He recognised and provided a clinical description of Alzheimer’s disease. Day also worked out that the largest proportion of older people die in the winter and thus cautioned them to be careful during these months. About dietary supplementation, he recognised that milk with added sugar & eggs were beneficial in old age. Day posited that women showed signs of ageing from about forty years of age, whereas men did not start to look old until they were between forty-eight or fifty. He complained that other physicians had little interest in caring for the ills of the aged2,3.  

‘A Practical Treatise on the Diseases and Infirmities of Advanced Life’, was published in 1863 by Daniel Maclachlan, who was an attending physician to the Royal Hospital Chelsea. He included dryness & wasting among the physiological changes of ageing, but refuted the belief that death resulted purely from age alone, pointing out that disease usually supervened to ‘sever the cord’(of life). He drew attention to the difficulty of diagnosis in older people where several diseases often coexisted. While Maclachlan suggested caution should be taken when prescribing drugs for older patients, those who were physically active benefited and tolerated ‘active treatment’. However, dose modification was necessary in frailer patients as drug action became less certain as old age advanced. Digitalis in particular required to be administered with great care, but if done so, was ‘a truly valuable medicine’, according to him.

 

1882..

Two seminal publications came out in this year that greatly influenced the development of geriatrics. August Weissman, a German evolutionary biologist, published his theory on programmed death. He proposed that death happened because ‘worn out tissue’ due to ageing could not be renewed indefinitely by cell division. The resulting decline in functional activity could lead to direct or so-called ‘normal’ death or indirect death due to reduced resistance to external influences. The theory was criticised mainly because few animals in natural populations died of old age and so ageing was not a significant contribution to mortality. With little experimental evidence to support it, Weismann’s theory did not find general acceptance.

Charcot’s writings were translated and published in English in 1882 as ‘Clinical Lectures on the Diseases of Old Age’ and had a considerable impact in Britain. The reason for this was no doubt the lack of papers on disease in old age in the English literature & not exactly the impact of theories put forward in it1. Charcot was world renowned for his analytical approach in diagnosing neurological conditions & is considered ‘the founder of modern neurology’. He has at least 15 medical eponyms associated with his name.

 

End of a Century, Oh, It’s Nothing Special..

Yes, the subheading is based on the hit number by Blur (I loved Mancunian Rock)..

Towards the end of the 19th century, the concept of hormonal reversal of aging processes began to develop. In 1886, Victor Horsley felt that older persons resembled myxedematous monkeys and that thyroid deficiency could result in ‘‘mere senility’’. Horsley was a neurosurgeon who did the first laminectomy for spinal cancer, and the transcranial approach to the pituitary gland. He also played a major role in the eradication of rabies from England.

Brown-Sequard, at the age of 70 years, found that he was getting tired at night and introduced the first testicular extract injections for rejuvenation. This led to Victor De Lespinasse at the University of Chicago doing human testicular transplants decades later. The shortage of humans wishing to donate a testis to be transplanted led to Serge Voronoff introducing ‘‘monkey-gland’’ transplants to rejuvenate the aging rich. In Kansas, Brinkley tried goat testicular transplants. These are the historical precursors to the modern use of testosterone replacement therapy for the andropause2.

“In the last analysis, we see only what we are ready to see, what we have been taught to see. We eliminate & ignore everything that is not a part of our prejudices.”- Jean-Martin Charcot.

 

To be continued…

References

  1. J R Coll Physicians Edinb 2012; 42:368–74
  2. Journal of Gerontology: MEDICAL SCIENCES In the Public Domain 2004, Vol. 59A, No. 11, 1132–1152
  3. https://www.cadr.cymru/en/getfile.php?type=site_documents&id=Sara%20Zadrozny%20CADR%20presentation.pdf

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