The patient is diagnosed with lung abscess based on his symptoms of productive cough, fever and chest heaviness along with abnormal chest x-ray findings. As the patient has a history of water pipe use, the lung abscess is classified as secondary and due to his COPD, it is chronic in nature. Diagnostic workup would include sputum culture, CT chest and percutaneous needle aspiration for confirmation. Treatment involves long-term IV antibiotics targeting anaerobes along with drainage and supportive care.
Bronchiectasis ( Bronchos- airways ; ectasia- dilatation) is a morphological term used to describe abnormal irreversibly dilated and often thick walled bronchi.
Bronchiectasis represents the end stage of variety of pathological precesses that cause destruction of bronchial wall and its surrounding tissues.
These lecture notes were prepared by Dr. Hamdi Turkey- Pulmonologist- Department of internal medicine - Taiz university
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Cor pulmonale is a disease of the right ventricle characterized hypertrophy and dilation that results from diseases directly affecting the lung parenchyma or lung vasculature.
It is the enlargement of the right ventricle secondary to diseases of the lung , thorax, or pulmonary circulation.
Bronchiectasis ( Bronchos- airways ; ectasia- dilatation) is a morphological term used to describe abnormal irreversibly dilated and often thick walled bronchi.
Bronchiectasis represents the end stage of variety of pathological precesses that cause destruction of bronchial wall and its surrounding tissues.
These lecture notes were prepared by Dr. Hamdi Turkey- Pulmonologist- Department of internal medicine - Taiz university
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Cor pulmonale is a disease of the right ventricle characterized hypertrophy and dilation that results from diseases directly affecting the lung parenchyma or lung vasculature.
It is the enlargement of the right ventricle secondary to diseases of the lung , thorax, or pulmonary circulation.
Abstract Lung Abscess is a liquefactive necrosis of the lung tissue and arrangement of cavitation (in excess of 2 cm) containing necrotic debris and liquid brought about by parenchymal infection. It very well may be brought about by yearning, which may happen during changed cognizance and it for the most part causes a discharge filled depression. In addition, liquor addiction is the most widely recognized condition inclining to lung abscesses. Lung abscess is viewed as essential (60%) when it comes about because of existing lung parenchymal process and is named auxiliary when it entangles another procedure, e.g., vascular emboli or follows rupture of extrapulmonary abscess into lung. There are a few imaging strategies which can distinguish the material inside the thorax, for example, electronic tomography (CT) output of the thorax and ultrasound of the thorax. Broad Spectrum anti-biotics to cover blended vegetation is the pillar of treatment. Pneumonic physiotherapy and postural drainage are additionally significant. Surgeries are required in specific patients for pneumonic resection Keywords: Lung abscess, anti-bodies, video-assissted thoracoscopic medical procedure (VATS), thoracoscopy
Pneumonia is characterized by the emergence of new lung infiltrates, accompanied by clinical signs such as fever, purulent sputum, leukocytosis, and decreased oxygenation and Nosocomial Pneumonia is a non-incubating lower respiratory infection that presents clinically two or more days after hospitalization. In this presentation "Nosocomial Pneumonias" has been described including their causes, therapy, Principles, diagnosis, symptoms, management, etc. For more information, please contact us: 9779030507.
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Pulmonolgy ,it's a common respiratory air way disease with many radiogical features that's vital to learn about it so you can reach the diagnosis easily along with a solid clinical approach
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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
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
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Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
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Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
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ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
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Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
Title: Sense of Smell
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 primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
2. CASE PRESENTATION
HISTORY
A 35 years old male patient
2 mo history of Productive Cough (copious purulent sputum with no hemoptysis),
Right sided chest pain( in 4th ICS, gradually increased in intensity, aggravated with
deep breathing and coughing, relieved with pain killers, radiating to the back and
ipsilateral shoulder)
Fever (low grade, continuous with rigors and chills)
Shortness of breath( MMRC Grade 2, gradually progressive, exertional, no
orthopnea, PND)
Nausea and vomiting
3. HISTORY
Scrap picker by profession
No History of travel abroad
No history of IV drug abuse
No History of leg swelling
No significant drug history
No past history of HTN, DM, Hep B, Hep C, TB, asthma or any other respiratory
illness
4. EXAMINATION
BP 110/80 Pulse 112/min SaO2 94 % RA, RR 20/min Temp 100 F
GPE
Anemic, Clubbed,
CVS - S1 + S2 no added sounds or murmurs
Resp - R sided decreased breath sounds with inspiratory crackles on auscultation
GIT - Not significant
CNS - Not significant
5. LABORATORY
Hb 11g/dl TLC 22.2 Pt 415 CRP 285
Sputum AFB/ Xpert MTB Neg - 2 months back ( Started on ATT for 2 months
without evidence)
Sputum bacterial C/S Neg
Urine RE Normal
Urea 40 Cr 1.0 RBS 85 HbA1C 5.03 LFT normal
HBsAg /Anti HCV/Anti HIV Neg
11. PATHOPHYSIOLOGY
The bacterial inoculum reaches the lung parenchyma, often in a dependent lung
area.
Pneumonitis, followed by necrosis, occurs over 7– 14 days.
Cavitation occurs when parenchymal necrosis leads to communication
with the bronchus
entry of air and expectoration of necrotic material leading to the
formation of an air-fluid level.
Bronchial obstruction leads to atelectasis with stasis and subsequent
infection, which can predispose to abscess formation.
16. MICROBIOLOGY
Anaerobes (93%)
Fusobacterium nucleatum and
necrophorum
Bacteroides fragilis
Pigmented and non pigmented Prevotella
Peptococcus and peptostreptococcus
Aerobes
Streptococcus ‘milleri’ group
Staphylococcus aureus
Klebsiella spp
Pseudomonas aeruginosa
Streptococcus pyogenes
Haemophilus influenza
Nocardia
17. DIFFERENTIAL DIAGNOSIS
Cavitating carcinoma- Primary or metastatic
Cavitatory TB
GPA (Wegener’s)
Infected pulmonary cyst or bulla (can produce a fluid level, usually thinner-walled)
Aspergilloma
Pulmonary infarct
Rheumatoid nodule
Sarcoidosis
Bronchiectasis.
18. INVESTIGATIONS
MICROBIOLOGICAL CULTURES
Blood cultures
Sputum or bronchoscopic specimen (BAL or brushings rarely needed)
Transthoracic percutaneous needle aspiration (CT- or US-guided)
(Risk of bleeding, pneumothorax, and seeding of infection to pleural space,
if abscess not adjacent to the pleura)
19. IMAGING STUDIES
Useful to exclude aspirated foreign body, underlying neoplasm, or bronchial
stenosis and obstruction
These include CXR and CT scan chest
20. CHEST X RAY
consolidation
cavitation
air-fluid level (if the patient is unwell, the CXR is likely to be taken in a semi-
recumbent position, so an air-fluid level may not be visible).
50% of abscesses are in the posterior segment of the right upper lobe or the apical
segments of either lower lobe
23. COMPUTED TOMOGRAPHY
CHEST( CT Chest)
if the diagnosis is in doubt and cannot be confirmed from the CXR appearance
if the clinical response to treatment is inadequate
to define the exact position of the abscess (which may be useful for physiotherapy
or if surgery is being considered—rarely needed)
can determine the presence of obstructing endobronchial disease eg due to
malignancy or foreign body,
useful in defining the extent of disease in a very sick patient who has had
significant haemoptysis.
25. CT Chest
LUNG ABSCESS vs EMPYEMA THORACIS
• Lung abscess appears as a
rounded intrapulmonary mass
• no compression of adjacent lung
• with a thickened irregular wall
• making an acute angle at its
contact with the chest wall.
26. EMPYEMA THORACIS
empyema typically has a
lenticular shape
compresses adjacent lung
creates an obtuse angle as it
follows the contour of the
chest wall.
27. MANAGEMENT
ANTIBIOTICS
to cover aerobic and anaerobic infection including β-lactam/ β-lactamase
inhibitors, e.g. co-amoxiclav and clindamycin.
Long courses are needed
Risk of Clostridium difficile diarrhea
Infections are usually mixed, therefore antibiotics to cover these
Metronidazole to cover anaerobes
Common practice would be 1 – 2 weeks IV treatment with a further 2–6 weeks oral
antibiotics, often until outpatient clinic review.
28. DRAINAGE
Spontaneous drainage is common with the production of purulent sputum
increased with postural drainage and physiotherapy
No data to support use of bronchoscopic drainage
Percutaneous drainage with radiologically placed small percutaneous drains for
peripheral abscesses may be useful in those failing to respond to antibiotic and
supportive treatment
usually placed under US guidance
29. SURGERY
Surgery is rarely required if appropriate antibiotic treatment is given
It is usually reserved for complicated infections failing to respond to standard
treatment after at least 6 weeks of treatment
May be needed if
a. Very large abscess (>6cm diameter)
b. Resistant organisms
c. Haemorrhage
d. Recurrent disease
Lobectomy or pneumonectomy is occasionally needed if severe infection with an
abscess leaves a large volume of damaged lung that is hard to sterilize.
30. FAILED RESPONSE TO TREATMENT
If slow to respond, consider
1. Underlying malignancy
2. Unusual microbiology, e.g. mycobacterium, fungi
3. Immunosuppression
4. Large cavity (>6cm)
5. Non-bacterial cause, e.g. cavitating malignancy, GPA (Wegener’s)
6. Other cause of persistent fever, e.g. Clostridium difficile diarrhoea, antibiotic-
associated fever.
31. PROGNOSIS
85% cure rate in the absence of underlying disease.
Mortality is reported as high as 75% in immunocompromised patients.
Poor prognostic factors
• presence of underlying lung disease
• increasing age
• large abscesses (>6cm)
• Staphylococcus aureus infection
• Immunocompromised patients
32. REFERENCES
Oxford Handbook of Respiratory Medicine Third edition
Clinical respiratory medicine Fourth edition
Fishman's Pulmonary Diseases and Disorders Fifth edition
33.
34. QUESTION 1
All of the following are risk factors of lung abscess except
a) Hemorrhagic stroke
b) Seizure disorders
c) Local anesthesia
d) Poor dentition
e) Chronic kidney disease
f) Alcoholism
35. QUESTION 2
Causes of cavitory lung disease include which of the following
a. Pulmonary embolism
b. Sarcoidosis
c. Adenocarcinoma lung
d. Rheumatoid arthritis
e. Eosinophilic pneumonia
f. Pneumoconiosis
g. Friedlanders pneumonia
h. MAC
i. Cryptogenic fibrosing alveolitis
36. QUESTION 3
All of the following organisms can cause cavitating pneumonia except
a. Entemoeba histolytica
b. Pseudomonas aeruginosa
c. Nocardia asteroids
d. Mycoplasma pneumonia
e. Staph aureus
f. Aspergillus spp
37. QUESTION 4
A 70 yrs old male patient known case of COPD presented to us with Shortness of
breath, Productive cough, High grade fever with rigors and chills and chest
heaviness for 1 month. The patient had a history of 30 years of water pipe use
(Chilam). OE BP 130/90 Pulse 112 SaO2 90% RA and Temp 101 F.
A CXR was done.
38.
39. What is your diagnosis
How will you classify the disease
What will be your diagnostic approach in this patient
How will you manage this patient