1) Epidemiology takes both a biomedical and population perspective on disease. The biomedical perspective focuses on immediate/proximate causes and biological mechanisms of disease at the individual level. The population perspective examines underlying social, economic, cultural and environmental determinants of disease patterns between populations.
2) An example is provided of lung cancer. While smoking is the immediate cause, the biomedical perspective alone does not explain why lung cancer became an epidemic in the 20th century. The population perspective considers how societal factors influenced smoking prevalence increases.
3) Epidemiology integrates both perspectives to identify disease determinants and distributions in populations in order to develop public health
Introduction to public health, definition, Preventive medicine vs public health, social medicine, community medicine, role of public health, public health practices, core activities
Introduction to public health, definition, Preventive medicine vs public health, social medicine, community medicine, role of public health, public health practices, core activities
Introduction to Epidemiology
History of Epidemiology.
Definition of Epidemiology and its components.
Epidemiological Basic concepts.
Aims of Epidemiology.
Ten Uses of Epidemiology.
Scope or The Areas of Application .
Types of Epidemiological Studies.
One of the most developed cities of India, the city of Chennai is the capital of Tamilnadu and many people from different parts of India come here to earn their bread and butter. Being a metropolitan, the city is filled with towering building and beaches but the sad part as with almost every Indian city
Medical Technology Tackles New Health Care Demand - Research Report - March 2...pchutichetpong
M Capital Group (“MCG”) predicts that with, against, despite, and even without the global pandemic, the medical technology (MedTech) industry shows signs of continuous healthy growth, driven by smaller, faster, and cheaper devices, growing demand for home-based applications, technological innovation, strategic acquisitions, investments, and SPAC listings. MCG predicts that this should reflects itself in annual growth of over 6%, well beyond 2028.
According to Chris Mouchabhani, Managing Partner at M Capital Group, “Despite all economic scenarios that one may consider, beyond overall economic shocks, medical technology should remain one of the most promising and robust sectors over the short to medium term and well beyond 2028.”
There is a movement towards home-based care for the elderly, next generation scanning and MRI devices, wearable technology, artificial intelligence incorporation, and online connectivity. Experts also see a focus on predictive, preventive, personalized, participatory, and precision medicine, with rising levels of integration of home care and technological innovation.
The average cost of treatment has been rising across the board, creating additional financial burdens to governments, healthcare providers and insurance companies. According to MCG, cost-per-inpatient-stay in the United States alone rose on average annually by over 13% between 2014 to 2021, leading MedTech to focus research efforts on optimized medical equipment at lower price points, whilst emphasizing portability and ease of use. Namely, 46% of the 1,008 medical technology companies in the 2021 MedTech Innovator (“MTI”) database are focusing on prevention, wellness, detection, or diagnosis, signaling a clear push for preventive care to also tackle costs.
In addition, there has also been a lasting impact on consumer and medical demand for home care, supported by the pandemic. Lockdowns, closure of care facilities, and healthcare systems subjected to capacity pressure, accelerated demand away from traditional inpatient care. Now, outpatient care solutions are driving industry production, with nearly 70% of recent diagnostics start-up companies producing products in areas such as ambulatory clinics, at-home care, and self-administered diagnostics.
The Importance of Community Nursing Care.pdfAD Healthcare
NDIS and Community 24/7 Nursing Care is a specific type of support that may be provided under the NDIS for individuals with complex medical needs who require ongoing nursing care in a community setting, such as their home or a supported accommodation facility.
Deep Leg Vein Thrombosis (DVT): Meaning, Causes, Symptoms, Treatment, and Mor...The Lifesciences Magazine
Deep Leg Vein Thrombosis occurs when a blood clot forms in one or more of the deep veins in the legs. These clots can impede blood flow, leading to severe complications.
ICH Guidelines for Pharmacovigilance.pdfNEHA GUPTA
The "ICH Guidelines for Pharmacovigilance" PDF provides a comprehensive overview of the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) guidelines related to pharmacovigilance. These guidelines aim to ensure that drugs are safe and effective for patients by monitoring and assessing adverse effects, ensuring proper reporting systems, and improving risk management practices. The document is essential for professionals in the pharmaceutical industry, regulatory authorities, and healthcare providers, offering detailed procedures and standards for pharmacovigilance activities to enhance drug safety and protect public health.
Antibiotic Stewardship by Anushri Srivastava.pptxAnushriSrivastav
Stewardship is the act of taking good care of something.
Antimicrobial stewardship is a coordinated program that promotes the appropriate use of antimicrobials (including antibiotics), improves patient outcomes, reduces microbial resistance, and decreases the spread of infections caused by multidrug-resistant organisms.
WHO launched the Global Antimicrobial Resistance and Use Surveillance System (GLASS) in 2015 to fill knowledge gaps and inform strategies at all levels.
ACCORDING TO apic.org,
Antimicrobial stewardship is a coordinated program that promotes the appropriate use of antimicrobials (including antibiotics), improves patient outcomes, reduces microbial resistance, and decreases the spread of infections caused by multidrug-resistant organisms.
ACCORDING TO pewtrusts.org,
Antibiotic stewardship refers to efforts in doctors’ offices, hospitals, long term care facilities, and other health care settings to ensure that antibiotics are used only when necessary and appropriate
According to WHO,
Antimicrobial stewardship is a systematic approach to educate and support health care professionals to follow evidence-based guidelines for prescribing and administering antimicrobials
In 1996, John McGowan and Dale Gerding first applied the term antimicrobial stewardship, where they suggested a causal association between antimicrobial agent use and resistance. They also focused on the urgency of large-scale controlled trials of antimicrobial-use regulation employing sophisticated epidemiologic methods, molecular typing, and precise resistance mechanism analysis.
Antimicrobial Stewardship(AMS) refers to the optimal selection, dosing, and duration of antimicrobial treatment resulting in the best clinical outcome with minimal side effects to the patients and minimal impact on subsequent resistance.
According to the 2019 report, in the US, more than 2.8 million antibiotic-resistant infections occur each year, and more than 35000 people die. In addition to this, it also mentioned that 223,900 cases of Clostridoides difficile occurred in 2017, of which 12800 people died. The report did not include viruses or parasites
VISION
Being proactive
Supporting optimal animal and human health
Exploring ways to reduce overall use of antimicrobials
Using the drugs that prevent and treat disease by killing microscopic organisms in a responsible way
GOAL
to prevent the generation and spread of antimicrobial resistance (AMR). Doing so will preserve the effectiveness of these drugs in animals and humans for years to come.
being to preserve human and animal health and the effectiveness of antimicrobial medications.
to implement a multidisciplinary approach in assembling a stewardship team to include an infectious disease physician, a clinical pharmacist with infectious diseases training, infection preventionist, and a close collaboration with the staff in the clinical microbiology laboratory
to prevent antimicrobial overuse, misuse and abuse.
to minimize the developme
Defecation
Normal defecation begins with movement in the left colon, moving stool toward the anus. When stool reaches the rectum, the distention causes relaxation of the internal sphincter and an awareness of the need to defecate. At the time of defecation, the external sphincter relaxes, and abdominal muscles contract, increasing intrarectal pressure and forcing the stool out
The Valsalva maneuver exerts pressure to expel faeces through a voluntary contraction of the abdominal muscles while maintaining forced expiration against a closed airway. Patients with cardiovascular disease, glaucoma, increased intracranial pressure, or a new surgical wound are at greater risk for cardiac dysrhythmias and elevated blood pressure with the Valsalva maneuver and need to avoid straining to pass the stool.
Normal defecation is painless, resulting in passage of soft, formed stool
CONSTIPATION
Constipation is a symptom, not a disease. Improper diet, reduced fluid intake, lack of exercise, and certain medications can cause constipation. For example, patients receiving opiates for pain after surgery often require a stool softener or laxative to prevent constipation. The signs of constipation include infrequent bowel movements (less than every 3 days), difficulty passing stools, excessive straining, inability to defecate at will, and hard feaces
IMPACTION
Fecal impaction results from unrelieved constipation. It is a collection of hardened feces wedged in the rectum that a person cannot expel. In cases of severe impaction the mass extends up into the sigmoid colon.
DIARRHEA
Diarrhea is an increase in the number of stools and the passage of liquid, unformed feces. It is associated with disorders affecting digestion, absorption, and secretion in the GI tract. Intestinal contents pass through the small and large intestine too quickly to allow for the usual absorption of fluid and nutrients. Irritation within the colon results in increased mucus secretion. As a result, feces become watery, and the patient is unable to control the urge to defecate. Normally an anal bag is safe and effective in long-term treatment of patients with fecal incontinence at home, in hospice, or in the hospital. Fecal incontinence is expensive and a potentially dangerous condition in terms of contamination and risk of skin ulceration
HEMORRHOIDS
Hemorrhoids are dilated, engorged veins in the lining of the rectum. They are either external or internal.
FLATULENCE
As gas accumulates in the lumen of the intestines, the bowel wall stretches and distends (flatulence). It is a common cause of abdominal fullness, pain, and cramping. Normally intestinal gas escapes through the mouth (belching) or the anus (passing of flatus)
FECAL INCONTINENCE
Fecal incontinence is the inability to control passage of feces and gas from the anus. Incontinence harms a patient’s body image
PREPARATION AND GIVING OF LAXATIVESACCORDING TO POTTER AND PERRY,
An enema is the instillation of a solution into the rectum and sig
R3 Stem Cells and Kidney Repair A New Horizon in Nephrology.pptxR3 Stem Cell
R3 Stem Cells and Kidney Repair: A New Horizon in Nephrology" explores groundbreaking advancements in the use of R3 stem cells for kidney disease treatment. This insightful piece delves into the potential of these cells to regenerate damaged kidney tissue, offering new hope for patients and reshaping the future of nephrology.
Navigating Challenges: Mental Health, Legislation, and the Prison System in B...Guillermo Rivera
This conference will delve into the intricate intersections between mental health, legal frameworks, and the prison system in Bolivia. It aims to provide a comprehensive overview of the current challenges faced by mental health professionals working within the legislative and correctional landscapes. Topics of discussion will include the prevalence and impact of mental health issues among the incarcerated population, the effectiveness of existing mental health policies and legislation, and potential reforms to enhance the mental health support system within prisons.
2. Definition of
epidemiology
• Epidemiology is the study of the distribution
and determinants of disease, risk factors and
exposures, and health status in populations.
Epidemiologists evaluate trends in health and
disease in order to provide a factual basis for
evaluating health programs and services.
3. Determinants of disease
There are many determinants of disease.
These are not only immediate biomedical causes of disease
(pathogens, diet, home environment), but also underlying
population causes of disease (cultural, economic, and social).
4. The
biomedical
perspective
on disease
In a biomedical approach to disease, the biological
consequences of exposure to infectious agents,
toxins, genes, or behavioral risk factors are the
objects of study. When disease is considered from
a biomedical perspective, the focus is on its
proximate or immediate causes.
Emphasis is placed on causal mechanisms of
disease, i.e., the sequence of events taking place in
the body when effective contact is made with a
disease agent.
5. The
biomedical
perspective
on disease
The biomedical perspective on disease in
populations is thus characterized by research to
identify its immediate causes and to understand
biological mechanisms for its development and
transmission.
Ultimately biomedical research targets individuals for
disease control, either by reducing their exposure to
agents of disease, or by directly treating individuals
who have been adversely affected by their
exposures. However, the amount of disease in
different populations is not just a matter of exposure
to the known immediate causal agents of disease.
6. Example of
the biomedical
perspective
versus the
population
perspective on
lung cancer.
• The epidemic of lung cancer in this country
began approximately in the 1940s and increased
in magnitude from then until the 1990s. For the
past two or more decades, we have known that
tobacco smoking, particularly cigarette smoking,
is the immediate cause of the epidemic.
• We know a great deal about biological
mechanisms of the action of cigarette smoke.
But this knowledge does not explain why lung
cancer became an epidemic in developed
countries in the past 50 years, although tobacco
smoking was practiced in one form or another
over the past 300 years.
7. Example of
the biomedical
perspective
versus the
population
perspective on
lung cancer.
• Nor did the knowledge of the immediate
cause of most lung cancers stem the rising
tide of this epidemic in our country in the
1970s and 1980s, and this knowledge is not
preventing developing countries from
experiencing a large increase in the
prevalence of smokers and a consequent
increase in the lung cancer epidemic.
8. Example of
the biomedical
perspective
versus the
population
perspective on
lung cancer.
• To understand the causes of the lung cancer
epidemic of the 20th Century, we must move
beyond the biomedical perspective and
consider disease in a societal context. It is
said that we are creatures of our
environment.
• The environment, broadly understood as
including the physical, social, economic and
cultural environment, is a major determinant
of disease in populations.
9. Example of
the biomedical
perspective
versus the
population
perspective on
lung cancer.
• The biomedical perspective, with its focus on
immediate causes and mechanisms of
disease, helps us understand how and why
individuals become diseased, but it does not
address disease in its societal context, from
the population perspective.
• The underlying causes of the lung cancer
epidemic were the societal factors--
economic, social and cultural-- that resulted
in a major increase in the prevalence of
smoking, particularly between the ages of 10
and 25 years.
10. Example of
the biomedical
perspective
versus the
population
perspective on
lung cancer.
• The addictive nature of nicotine added to the
epidemic by prolonging the habit of smoking
even after the culturally-determined symbolic
benefits of smoking may no longer have
motivated the adult smoker.
• Nearly all-important diseases of society have
similar underlying causes, embedded in the
cultural and economic structure of each
population.
• These underlying causes explain variations in
the prevalence of disease in different
communities.
11. The
population
perspective
on disease
• The population perspective focuses on these
underlying causes, that is, on the environmental,
social, cultural and economic determinants of
differences in disease frequency between
populations. The population perspective on disease
is characterized by research to:
1. identify variations in disease frequency in
different populations, specified by place, person
and time;
2. investigate the underlying causes of disease in
populations, that is, the environmental, economic,
social and cultural determinants of disease; and
3. identify societal mechanisms that affect the
distribution of disease, or of risk factors for
disease, in populations.
12. The
population
perspective
on disease
• The ultimate purpose is to develop a societal
environment in which the health and well
being of the population as a whole can be
enhanced.
13. Combining
the
biological
and
population
perspectives
• Epidemiology embraces both the biological
and population perspectives on disease in
populations, and is thus a biological, social
and ecological science.
• Epidemiology differs from other biomedical
sciences by its population perspective on
disease, and it differs from other social and
ecological sciences by its incorporation of
biomedical science into its process of
inquiry.
14. Self
Evaluation
Q 1: State three characteristics of the
biomedical perspective on disease in
populations.
15. Self
Evaluation
Q 2: State three characteristics of the
population perspective on disease in
populations.
16. Self
Evaluation
Q 3: The prevalence of asthma is apparently
increasing in the population. The specific
reasons for this increased prevalence are
unknown. What patterns of the distribution of
asthma prevalence in the population would
provide us with some leads for eventual public
health action against asthma?