A head injury can range from mild to severe and is caused by blunt force trauma or penetrating injuries to the skull and brain. Symptoms of a serious head injury include loss of consciousness, persistent headaches, vomiting, or abnormal behavior. Treatment depends on severity but may include monitoring for deterioration, supporting circulation and lowering intracranial pressure by evacuating hematomas or reducing brain swelling.
70% of RTA patients have head injury(HI).
One of the most important public health problems of today.
70% of deaths in RTA are due to HI.
At Risk population
Males 15-24
Infants
Young Children
Elderly
70% of RTA patients have head injury(HI).
One of the most important public health problems of today.
70% of deaths in RTA are due to HI.
At Risk population
Males 15-24
Infants
Young Children
Elderly
Head injury types, clinical manifestations, diagnosis and managementVibha Amblihalli
I prepared this presentation for CME at 108 Emergency Services GVK-EMRI, Bangalore in January 2013. I kept it simple and concise as the CME was attended by EMTs too. Hope its of help to any medical professional out there.
Head injury types, clinical manifestations, diagnosis and managementVibha Amblihalli
I prepared this presentation for CME at 108 Emergency Services GVK-EMRI, Bangalore in January 2013. I kept it simple and concise as the CME was attended by EMTs too. Hope its of help to any medical professional out there.
lucid interval and its importance in trauma and mental healthsreya paul
lucid interval importance in trauma patients and how to manage them in surgical knowledge.lucid interval in psychiatry and its importance. advanced trauma life support scoring, glasgow coma scale ,head injury management in surgery surgical management head trau a
Intracranial bleeding encompasses all bleeds that may occur within the cranial cavity including Epidural, Subdural, Sub arachnoid, intraparenchymal and Intraventricular haemorrhages. all are discussed in these slides and relevant references are provided for detailed information.
It is important to note that medicine is not learnt online but through series of organised events under specialised supervision in recognised institutions of learning.
Stroke or Cerebrovascular incident, is defined as an abrupt onset of a neurological deficit that is attributable to a focal vascular cause.
The clinical manifestations of stroke are highly variable because of the complex anatomy of the brain
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
share - Lions, tigers, AI and health misinformation, oh my!.pptxTina Purnat
• Pitfalls and pivots needed to use AI effectively in public health
• Evidence-based strategies to address health misinformation effectively
• Building trust with communities online and offline
• Equipping health professionals to address questions, concerns and health misinformation
• Assessing risk and mitigating harm from adverse health narratives in communities, health workforce and health system
These lecture slides, by Dr Sidra Arshad, offer a quick overview of the physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar lead (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
6. Describe the flow of current around the heart during the cardiac cycle
7. Discuss the placement and polarity of the leads of electrocardiograph
8. Describe the normal electrocardiograms recorded from the limb leads and explain the physiological basis of the different records that are obtained
9. Define mean electrical vector (axis) of the heart and give the normal range
10. Define the mean QRS vector
11. Describe the axes of leads (hexagonal reference system)
12. Comprehend the vectorial analysis of the normal ECG
13. Determine the mean electrical axis of the ventricular QRS and appreciate the mean axis deviation
14. Explain the concepts of current of injury, J point, and their significance
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. Chapter 3, Cardiology Explained, https://www.ncbi.nlm.nih.gov/books/NBK2214/
7. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
DISSERTATION on NEW DRUG DISCOVERY AND DEVELOPMENT STAGES OF DRUG DISCOVERYNEHA GUPTA
The process of drug discovery and development is a complex and multi-step endeavor aimed at bringing new pharmaceutical drugs to market. It begins with identifying and validating a biological target, such as a protein, gene, or RNA, that is associated with a disease. This step involves understanding the target's role in the disease and confirming that modulating it can have therapeutic effects. The next stage, hit identification, employs high-throughput screening (HTS) and other methods to find compounds that interact with the target. Computational techniques may also be used to identify potential hits from large compound libraries.
Following hit identification, the hits are optimized to improve their efficacy, selectivity, and pharmacokinetic properties, resulting in lead compounds. These leads undergo further refinement to enhance their potency, reduce toxicity, and improve drug-like characteristics, creating drug candidates suitable for preclinical testing. In the preclinical development phase, drug candidates are tested in vitro (in cell cultures) and in vivo (in animal models) to evaluate their safety, efficacy, pharmacokinetics, and pharmacodynamics. Toxicology studies are conducted to assess potential risks.
Before clinical trials can begin, an Investigational New Drug (IND) application must be submitted to regulatory authorities. This application includes data from preclinical studies and plans for clinical trials. Clinical development involves human trials in three phases: Phase I tests the drug's safety and dosage in a small group of healthy volunteers, Phase II assesses the drug's efficacy and side effects in a larger group of patients with the target disease, and Phase III confirms the drug's efficacy and monitors adverse reactions in a large population, often compared to existing treatments.
After successful clinical trials, a New Drug Application (NDA) is submitted to regulatory authorities for approval, including all data from preclinical and clinical studies, as well as proposed labeling and manufacturing information. Regulatory authorities then review the NDA to ensure the drug is safe, effective, and of high quality, potentially requiring additional studies. Finally, after a drug is approved and marketed, it undergoes post-marketing surveillance, which includes continuous monitoring for long-term safety and effectiveness, pharmacovigilance, and reporting of any adverse effects.
Antimicrobial stewardship to prevent antimicrobial resistanceGovindRankawat1
India is among the nations with the highest burden of bacterial infections.
India is one of the largest consumers of antibiotics worldwide.
India carries one of the largest burdens of drug‑resistant pathogens worldwide.
Highest burden of multidrug‑resistant tuberculosis,
Alarmingly high resistance among Gram‑negative and Gram‑positive bacteria even to newer antimicrobials such as carbapenems.
NDM‑1 ( New Delhi Metallo Beta lactamase 1, an enzyme which inactivates majority of Beta lactam antibiotics including carbapenems) was reported in 2008
- Video recording of this lecture in English language: https://youtu.be/kqbnxVAZs-0
- Video recording of this lecture in Arabic language: https://youtu.be/SINlygW1Mpc
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
ABDOMINAL TRAUMA in pediatrics part one.drhasanrajab
Abdominal trauma in pediatrics refers to injuries or damage to the abdominal organs in children. It can occur due to various causes such as falls, motor vehicle accidents, sports-related injuries, and physical abuse. Children are more vulnerable to abdominal trauma due to their unique anatomical and physiological characteristics. Signs and symptoms include abdominal pain, tenderness, distension, vomiting, and signs of shock. Diagnosis involves physical examination, imaging studies, and laboratory tests. Management depends on the severity and may involve conservative treatment or surgical intervention. Prevention is crucial in reducing the incidence of abdominal trauma in children.
Rasamanikya is a excellent preparation in the field of Rasashastra, it is used in various Kushtha Roga, Shwasa, Vicharchika, Bhagandara, Vatarakta, and Phiranga Roga. In this article Preparation& Comparative analytical profile for both Formulationon i.e Rasamanikya prepared by Kushmanda swarasa & Churnodhaka Shodita Haratala. The study aims to provide insights into the comparative efficacy and analytical aspects of these formulations for enhanced therapeutic outcomes.
Integrating Ayurveda into Parkinson’s Management: A Holistic ApproachAyurveda ForAll
Explore the benefits of combining Ayurveda with conventional Parkinson's treatments. Learn how a holistic approach can manage symptoms, enhance well-being, and balance body energies. Discover the steps to safely integrate Ayurvedic practices into your Parkinson’s care plan, including expert guidance on diet, herbal remedies, and lifestyle modifications.
Muktapishti is a traditional Ayurvedic preparation made from Shoditha Mukta (Purified Pearl), is believed to help regulate thyroid function and reduce symptoms of hyperthyroidism due to its cooling and balancing properties. Clinical evidence on its efficacy remains limited, necessitating further research to validate its therapeutic benefits.
4. • A head injury is any trauma that leads to
injury of the scalp, skull, or brain. These
injuries can range from a minor bump on
the skull to a devastating brain injury.
5. • Head injury can be classified as either closed or
penetrating.
• In a closed head injury, the head sustains a
blunt force by striking against an object
• In a penetrating head injury, an object breaks
through the skull and enters the brain. (This
object is usually moving at a high speed like a
windshield or another part of a motor vehicle.)
6. • Learning to recognize a serious head
injury, and implementing basic first aid,
can make the difference in saving
someone's life.
• In patients who have suffered a severe
head injury, there is often one or more
other organ systems injured. For example,
a head injury is sometimes accompanied
by a spinal injury.
11. The main factors which determine the
severity of cerebral injury are:
• Distortion of the brain.
• Mobility of brain in relation to skull
and meninges.
• Configuration of interior of skull.
• Deceleration and acceleration.
• The pre-existing state of brain
(elderly).
15. • Extracranial :
– Resp. failure, increase CO2.
– Systemic B/P
– Fluid, isotonic.
– Temperature
16. • For a mild head injury, no specific treatment
may be needed. However, closely watch the
person for any concerning symptoms over the
next 24 hours.
• The symptoms of a serious head injury can be
delayed. While the person is sleeping, wake him
or her every 2 to 3 hours and ask simple
questions to check alertness
17. • If a child begins to play or run immediately
after getting a bump on the head, serious
injury is unlikely. However, as with anyone
with a head injury, closely watch the child
for 24 hours after the incident.
18. • Signs of deterioration:
– Becomes unusually drowsy
– Develops a severe headache or stiff neck
– Vomits more than once
– Loses consciousness (even if brief)
– Behaves abnormally
19. Skull fractures
• Simple fracture.
• Comminuted linear fracture of the vault.
• Skull base linear fracture.
• Depressed fracture. by:
-falling objects.
-Assault with a heavy blunt tool.
-Missile injury.
-R.T.A
26. Circulatory Support:
Maintain Cerebral Perfusion Pressure
6
5
Number of 4 Good
Hypotensive Moderate
Episodes 3
Severe
2 Vegetative
1
Dead
0
Outcome
Kokoska et al. (1998), Journal of Pediatric Surgery,
33(2)
27. Lowering ICP
Brain Blood
CSF Mass
• Evacuate hematoma Bone
• Drain CSF
– Intraventricular catheters use is limited by
degree of edema and ventricular effacement
• Craniotomy
– Permanence, risk of infection, questionable
benefit
32. Severe head injury
• It depends on the patient’s neurological
state and the intracranial pathology
resulting from the trauma.
• Clinical assessment and CT scan
• Evacuation of any hematomas
33. • If there is no surgical lesion, or
following the operation:
– Observation and GCS chart
– Decrease intracranial brain swelling
• Airway management
• Elevation of the head of the bed 20º
• Fluid and electrolyte balance
• Blood replacement with colloid or blood and
not crystalloid
• No steroids
34. – Management of conditions resulted from
head injury
• Severe hyponatraemia due to excessive fluid
intake or inappropriate excessive secretion
of ADH
• Hypernatraemia due to inadequate fluid
intake.
• Diabetes insipidus
35. • Temperature control, pyrexia due to
hypothalamic damage or traumatic SAH
or infection or from CSF leak and
meningitis
36. – Nutrition:
• During the initial 2-3 days the fluid therapy
will include 1.5-2 liters of 5% dextrose
• After 3-4 days by nasogastric feeding
37. – Routine care of the unconscious patient,
bowel, bladder and skin.
– Intracranial monitoring in more severe
cases.