1. The document provides 10 facts about acute pain management, including that treatment of acute pain is fundamental, patient variables influence pain response, and multimodal analgesic techniques should be offered.
2. It discusses recommended elements for pain assessment, such as onset, location, and intensity, and validated pain scales like FLACC and PAINAD.
3. Future pain assessment may rely on technology to provide objective measurements, such as analyzing heart rate variability, skin conductance, or pupillometry when patients cannot communicate their pain levels.
Pain assessment in ED an evidence-based updatekellyam18
This presentation delivered at the International Conference on Emergency Medicine in Dublin describes different approaches to assessing pain in emergency department patients. It summarises the evidence supporting the various approaches and makes recommendations for practice.
Pain assessment in ED an evidence-based updatekellyam18
This presentation delivered at the International Conference on Emergency Medicine in Dublin describes different approaches to assessing pain in emergency department patients. It summarises the evidence supporting the various approaches and makes recommendations for practice.
The evaluation of back pain can be a pain in the neck or a back-breaking exercise, so to speak. However, the diagnosis hinges always on a focused History and Physical Exam and not really on labs or imaging. Knowing what to ask and where to look can make the evaluation of this all-too-common condition manageable for the internist.
This lecture focuses on the evaluation of low back pain and will guide the reader on the key points in the Hx and PE and prevent unnecessary testing/imaging. It also presents 3 "unusual" cases of low back pain which may be disabling if not recognized immediately.
Awareness and assessment of the pain in
postoperative children is important
Remember the different pharmacology in
neonates, infants and children
Multi-modal approach to preventing and treating
pain to minimize adverse effects
Regional analgesia must be considered unless
contraindicated
Pain is not “just a symptom”. It is a significant biomedical problem that requires expertise, and merits study in its own right
awareness
education
research
Similar to Top ten facts about acute pain management (20)
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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
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- 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
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
1. TOP TEN FACTS
ABOUT ACUTE
PAIN
MANAGEMENT
Claudia Gomez, MD. FRCPC
Department of Anesthesia and Pain Medicine
University of Ottawa
Twitter: @cpaolag
2. Perioperative Care Congress: Science, Evidence and Practice
June 2-4, 2017 • Chelsea Hotel, Toronto
No relevant financial relationships with any commercial interests
Social media sharing is encouraged, find these slides at www.slideshare.com
In twitter use the hashtags and user names to discuss: @periopcongress @cpaolag
#periopcongress17 #FOAMed #MedEd #AcutePain
Financial Disclosures
(over past 24 months)
3. Objectives:
At the end of this
session, participants
will be able to:
1. Adapt the recommendations from multidisciplinary
guidelines on the management of postoperative
pain in their own clinical practice.
2. Formulate plans to manage acute pain in a diverse
patient population.
3. Describe some research gaps in perioperative acute
pain management.
4. Use appropriate pain assessment scales for each
population
5. Our
patient:
85 years old female from home. Mechanical fall, 3
steps down on her side. Pain on her left side. No
other injuries. Notes that is painful to breath. X-rays
show left anterior rib fractures from 2-7 and
moderate size pneumothorax. Past medical hx
significant for hypertension and osteoporosis. Vitals:
BP 136/76 HR 100, RR 20, SaO2 90% on room air.
Chest tube inserted by trauma team.
Perioperative Care Congress: Science, Evidence and Practice
June 2-4, 2017 • Chelsea Hotel, Toronto
15. Categories SCORING
0 1 2
Face No particular expression or
smile
Occasional grimace or frown;
withdrawn, disinterested
Frequent to constant frown,
clenched jaw, quivering chin
Legs Normal position or relaxed Uneasy, restless, tense Kicking or legs drawn up
Activity Lying quietly, normal position,
moves easily
Squirming, shifting back and
forth, tense
Arched, rigid, or jerking
Cry No cry (awake or sleep) Moans or whimpers, occasional
complaint
Crying steadily, screams or
sobs; frequent complaints
Consolability Content, relaxed Reassured by occasional
touching, hugging, or being
talked to; distractible
Difficult to console or comfort.
FLACC behavioural pain assessment scale
16. The PAINAD scale
Behavior 0 1 2 Score
Breathing independent of
vocalization
Normal Occasional labored breathing
Short period of hyperventilation
Noisy labored breathing
Long period of hyperventilation
Cheyne-Stokes respirations
Negative vocalization None Occasional moan or groan
Low-level speech with a negative
or disapproving quality
Repeated or troubled calling out
Loud moaning or groaning
Crying
Facial expression Smiling or
inexpressive
Sad
Frightened
Frown
Facial grimacing
Body language Relaxed Tense
Distressed pacing
Fidgeting
Rigid
Fists clenched
Knees pulled up
Pulling or pushing away
Striking out
Consolability No need to
console
Distracted or reassured by voice or
touch
Unable to console, distract or reassure
17.
18. Suggested
elements of
pain
assessment
Element Questions used for assessment
Onset and
pattern
When did the pain start? How often it occur? Has its intensity
changed?
Location Where is the pain? It is local to the incision site, referred, or
elsewhere?
Quality of pain What does the pain feels like?
Intensity How severe the pain is?
Aggravating and
relieving factors
What makes the pain better or worse?
Previous
treatment
What types of treatment have been effective or ineffective in the
past to relieve the pain?
Effect How does the pain affect physical function, emotional distress, and
sleep?
Barriers to pain
assessment
What factors might affect accuracy or reliability of pain assessments
(e.g. Cultural or cognitive barriers, misconceptions about
interventions)?
20. The WHO ladder approach to pain
management
Weak opioid
with non-opioid
Strong opioid
with non-opioid
Ifpainpersistorincrease
Withorwithout
adjuvants
Nonopioid
21. Adaptation of the analgesic ladder for
acute pain
Nonopioid analgesics
NSAIDS, acetaminophen
“Weak” opioids
Strong opioids
Nerve blocks, Epidurals
PCA pumps
STEP I
STEP II
STEP IV
STEP III
22. “Cornerstone” perioperative analgesic
techniques
Patient-controlled analgesia
Neuraxial analgesia: epidural and intrathecal analgesia
Peripheral nerve blocks
Practice guidelines for acute pain management in the perioperative setting. Anesthesiology
2012; 116:248 –73
23.
24. Patient with rib fracture(s)
Assess pain and
oxygenation every 2
hours
Ensure multimodal
analgesia and bowel
regimen prescribed for
all patients
High Risk?
Or
Severe Pain?
Does the patient require
> 4 L/min O2 to maintain
SpO2 > 96%
Refer to APS (consideration for epidural /
paravertebral).
Hold anti-thrombotic / anti-platelet agents
Refer for Anesthesia / RT
assessment (possible
BiPAP/CPAP). Ensure NPO
>6 hrs
HIGH RISK PATIENTS are
patients with any one of the
following characteristics:
• > 4 rib fractures
• 65 years old or greater
• History of:
• Coronary Artery
Disease
• Congestive Heart
Failure
• Pulmonary Disease
• Obesity BMI > 40
• Diabetes
• Patient intolerant of opioidsYES
NO
NO
YES
The Ottawa Hospital Pathway For Early Intervention In Rib Fracture
START HERE
27. Fact 10.
Future of
pain
assessment
could rely in
technology?
Need for objective pain measurements
when patient unable to communicate
Analgesia-nociception index (ANI)
Skin-conductance monitoring
Surgical pleth index (SPI)
Measures of sympathetic activity
28. Novel methods to assess pain: Pain and the
Autonomic Nervous System (ANS)
Analgesia nociception index (ANI):
Heart rate variability computation
Heart rate short-term fluctuations reflect the activity of sympathetic and parasympathetic nervous
system
Analgesia nociception index: evaluation as a new parameter for acute postoperative pain. Br. J. Anaesth. (2013) 111 (4): 627-629.
29. Novel methods
to assess pain:
Pain and the
Autonomic
Nervous
System (ANS)
Surgical Pleth Index (SPI)
Br. J. Anaesth. (2011) 106 (1): 101-111.
CARDEAN: beat-to-beat cardiovascular index
Anesth Analg 2010;110:765–72
Pupillometry
Anesth Analg 2015;120(6):1242–53
Skin conductance monitoring
Br. J. Anaesth. (2006) 97 (6): 862–5
30. Conclusions • Patient education is an important pillar in perioperative
pain management
• Assessment is paramount to good pain management.
Recognize importance of treating both the underlying
disease and acute pain aggressively
• Research gaps in acute pain management include the
effect of acute pain in long-term outcomes, transition
to outpatient care (ideal prescription modalities),
technology to assess pain, new and safer pain
medications.
Editor's Notes
Safe and effective pain management in the perioperative setting is important for a number of reasons, including decrease risk of adverse outcomes related to both treatment and management of pain.
To facilitate Enhanced Recovery After Surgery (ERAS), and fast-track surgery programs
Some consequences of poorly managed acute pain include:
Cardiovascular: tachycardia, hypertension, increase in cardiac work load.
Pulmonary: respiratory muscle spasm, splinting, decrease in vital capacity, atelectasis, hypoxia, and increased risk of pulmonary infection.
Gastrointestinal: postoperative ileus
Renal: increased risk of oliguria and urinary retention
Coagulation: increased risk of thromboemboli-DVT-PE.
Immunologic: impaired immune function
Muscular: muscle weakness and fatigue-decreased mobility can increase risk of thromboembolism.
Psychological: anxiety, fear, and frustration which leads to poor patient satisfaction
Poor managed pain is associated with increased immediate morbidity and mortality after surgery and trauma
Sleep deprivation, Chronic Pain and Depression are newly appreciated intermediate to long term adverse effect of inadequate pain control.
Aging population: Pain is a significant contributor to delirium and post-operative cognitive dysfunction which are further adverse consequences that increase length of hospital stay.
Some adverse outcomes related with the management of perioperative pain include: respiratory depression, brain or neurological injury, sedation, nausea and vomiting, pruritus, urinary retention, impairment of bowel function, and sleep disruption.
The 4 dimensions of pain: sensory, affective, cognitive and behavioural.
Expectation of pain, fear, past memories, social environment, work, and levels of physical activity, all affect the response to noxious stimuli.
Preoperative anxiety is correlated with postoperative pain experience. Fear of pain in the postoperative setting and the avoidance of such pain might also have a negative effect on how pain is perceived and resolved
Postoperative pulmonary complications are defined heterogeneously and encompass any complication affecting the respiratory system after anaesthesia and surgery.
Include: respiratory infection, respiratory failure, pleural effusion, atelectasis, pneumothorax, bronchospasm, aspiration pneumonitis, pneumonia, pulmonary Edelman, exacerbation of pre-existing lung disease, pulmonary embolism, death.
Addition of epidural analgesia to GA significantly reduces the risk of postoperative pneumonia in the general surgical population when compared with systemic opioids alone. It is especially beneficial for patients with severe COPD having major abdominal surgery, presumably as a result of improved analgesia and reduced opioid consumption. Epidural analgesia improves respiratory function and reduces rates of pneumonia, postoperative ventilation, and unplanned re-intubation.
Obese patients are more likely to have OSA, and those with OSA are at risk of respiratory depression after surgery because of increased sensitivity to opioids and sedatives. Reduced doses of opioids should therefore be administered to some patients with known or suspected OSA, because opioid dose is correlated with postoperative increases in OSA and therefore the potential for PPCs.
Opioids are frequently prescribed for cancer patients for the management of acute postoperative pain and for chronic pain. In addition to their analgesic effects, opioids have well-established immunomodulatory effects. Evidence from experimental studies in cancer is conflicting.48 This is further complicated by the fact that the type of opioid, route, and duration of administration might all be relevant confounding factors.
The implications of inadequately controlled pain on the stress response should be considered if future strategies seek to limit opioids perioperatively. Opioid analgesia and intrathecal bupivicaine significantly decreased postoperative LTR (lung tumour retention) compared with no analgesia in a live animal model of breast cancer,69demonstrating that effective perioperative analgesia can play a role in facilitating resistance to metastatic progression.
Regional anaesthesia attenuates the neuroendocrine stress response, reducing opioid, and intraoperative volatile anaesthetic agent requirements. This combination of effects might allow enhanced preservation of perioperative
immune function and possibly reduce the incidence of cancer recurrence. Addition of spinal to GA reduced lung metastasis following laparotomy compared with GA alone.
Local anaesthetics (LAs) have proposed cytotoxic effects on neoplastic cells. An anti-proliferative effect on human tongue cancer cells, by inhibiting epidermal growth factor, was exhibited by lidocaine in vitro.43 Lidocaine, bupivacaine, and ropivacaine reduced mesenchymal stem cell proliferation in vitro and transcription pathways related to initiation of neoplasia and metastasis were also inhibited.44LAs have also been reported to alter the DNA methylation status of certain cancer cell types and have been associated with the reactivation of tumour suppressor genes.45
LAs have also been associated with cytotoxic effects on T-lymphoma cells in vitro. Apoptosis was observed at lower concentrations, while necrosis was seen at higher concentrations. Eight LAs were studied in total and each exhibited varying cytotoxic effects, which appeared to correlate with their lipophilicity and potency.46
Acute pain is the main risk factor to develop chronic pain or for progression from acute to chronic pain .
In this graphic we see the risk factors for persisting pain following surgery.
My colleague will talk more in depth about it.
Clinicians should use a validated pain assessment tool to track responses to postoperative pain treatments and adjust treatment plans accordingly.
A number of pain assessment tools have been validated for accuracy in detecting the presence, and quantifying the severe of pain and has been tested for intrapatient and inter-rater variability.
Validated pain assessment tools use different methods to measure pain, including visual analog scales, numeric or verbal rating scales, symbols and others.
The selection of a particular pain assessment tool should be on the basis of factors such as developmental status, cognitive status, level of consciousness, education level and cultural and language differences.
In children, the paediatric initiative on methods, measurement and pain assessment in clinical trials, suggest the use of the FLACC postoperative pain measure for assessing acute pain in preverbal and non-verbal children, on the basis of reliability, validity and ease to use.
Observe patient for 1 to 5 minutes if awake, for 5 min or longer if asleep.
0= relaxed and comfortable
1-3= mild discomfort
4-6= moderate pain
7-10= severe discomfort or pain or both.
One tool used among cognitively impaired adults is the Pain Assessment in Advanced Dementia (PAINAD) Scale.
Observe the patient for five minutes before scoring his or her behaviors. Score the behaviors according to the following chart. Scoring:
The total score ranges from 0-10 points. A possible interpretation of the scores is: 1-3=mild pain; 4-6=moderate pain; 7-10=severe pain. These ranges are based on a standard 0-10 scale of pain, but have not been substantiated in the literature for this tool.
In our centre, we use the brief pain inventory. This is a multidimensional pain assessment instrument that assess not just the pain intensity and quality, but its impact in the patient’s daily life.
Pain assessment involves more than just quantifying the intensity of pain. Assessment should determine what interventions have been effective for the pain, how the pain affects function, the type of pain, barriers to effective pain management. Pain should be assessed at rest and with activities, and include other clinical issues such as sedation, delirium, nausea and other side effects.
One of the recommendations of the panel is that clinicians offer multimodal analgesia, or the use of a variety of analgesic medications and techniques combined with non-pharmacological interventions for the treatment of postoperative pain in children and adults.
Multimodal analgesia is defined as the use of a variety of analgesic medication and techniques that target different mechanisms of action in the peripheral or central nervous system.
The graphic represents the 4 elements of pain processing, and how different analgesics target different mechanisms both peripherally and centrally.
In acute settings the intensity of pain is more severe during the 24-72 h following the surgery or traumatic injury. During this period pain is optimally controlled using step 4 interventional techniques including neuraxial analgesia and continuous peripheral neural blockade. As patient improves we can go downward step 3 to IV PCA or strong opioids and as bowel function returns, we can use oral medications.
Clinicians should provide education to all patients, and primary caregivers on the pain treatment plan, including tapering of analgesics after hospital discharge.
Research on methods and outcomes of discharge planning and follow-up are scarce and insufficient to provide strong guidance on optimal methods. Patients should be counselled on how to take pain medications safely and to manage side effects to optimize pain control and recovery with return to usual activities.
Visual abstract from Annals of Surgery.
It is based on ECG data derived from two single-use ANI electrodes applied in V1 and V5 positions to the chest. The ANI is finally computed from a frequency domain-based analysis of the high frequency com- ponent (HF: 0.15 – 0.5 Hz) of HRV which also incorporates the respiration rate (RR) as a potential confounder. It is displayed as a score from 0 – 100. Higher ANI values indicate prominent parasympathetic tone, as observed during adequate analgesia.18 In the case of nociception, the sympathetic tone increases and the parasympathetic tone decreases, leading to decreased ANI values.
INDICATIONS/CAVEATS
The calculation of SPI relies on a balanced sum of normalized heart beat intervals (HBIs) and plethysmographic pulse wave amplitudes,12 both of which are controlled by the balance between sympathetic and parasympathetic tone.