Cerebrovascular Disorders and Increased Intracranial Pressure - Concept Map
Acute Neurological Emergencies: Stroke and ICP Management
Related concepts
Cerebrovascular Disorders
Sub concepts
- Ischemic Stroke (80-85%)
- Hemorrhagic Stroke (15-20%)
- Transient Ischemic Attack (TIA)
- Subarachnoid Hemorrhage
Relationship to central
Primary pathology causing neurological emergency requiring immediate intervention
Increased Intracranial Pressure
Sub concepts
- Pathophysiology (Monro-Kellie Doctrine)
- Clinical Manifestations
- Nursing Interventions
- Pharmacological Management
Relationship to central
Secondary complication requiring continuous monitoring and aggressive management
Traumatic Brain Injury
Sub concepts
- Epidural Hematoma
- Subdural Hematoma
- Basilar Skull Fracture
- Concussion
Relationship to central
Alternative etiology causing acute neurological dysfunction and ICP elevation
Brain Tumors
Sub concepts
- Primary vs Metastatic
- Clinical Manifestations
- Diagnostic Procedures
- Treatment Modalities
Relationship to central
Chronic condition with acute complications including ICP elevation and neurological deficits
Nursing Management Framework
Sub concepts
- Neurological Assessment
- Emergency Protocols
- Patient Education
- Complication Prevention
Relationship to central
Systematic approach to assessment, intervention, and patient teaching for all conditions
Concept connections
- StrokeIncreased Intracranial PressureIschemic and hemorrhagic strokes both lead to cerebral edema and potential ICP elevation; hemorrhagic stroke causes both tissue destruction and ICP elevation
- Ischemic StroketPA TherapyTreatment for ischemic stroke within the therapeutic window; dissolves thrombus to restore perfusion and salvage penumbra
- Hemorrhagic StroketPA TherapyAbsolute contraindication; tPA worsens bleeding and increases mortality
- Transient Ischemic AttackFull Stroke RiskTIA is a major warning sign; significant proportion of TIA patients develop full stroke within days, requiring urgent secondary prevention
- Non-Contrast CTIschemic vs Hemorrhagic DifferentiationInitial diagnostic test to distinguish stroke type; must be done emergently before any treatment to guide opposite therapies
- Cushing's TriadDecreased Level of ConsciousnessLate sign of increased ICP; occurs after decreased LOC; indicates impending herniation
- Head Position 30 DegreesCerebral Venous DrainageElevating head promotes venous return from brain; reduces ICP by facilitating fluid drainage
- MannitolOsmotic DiuresisOsmotic diuretic that pulls fluid from interstitial brain tissue into vasculature; reduces cytotoxic edema
- DexamethasoneVasogenic EdemaCorticosteroid effective for vasogenic edema around brain tumors; not effective for ischemic stroke or traumatic edema
- Epidural HematomaLucid IntervalClassic presentation of epidural hematoma; brief initial loss of consciousness followed by apparent recovery, then rapid deterioration
- Basilar Skull FractureCSF Rhinorrhea and OtorrheaBasilar skull fracture damages dura, allowing CSF leakage from nose or ears; indicates meningitis risk
- Brain TumorIncreased Intracranial PressureBrain tumors raise ICP regardless of benignity because they occupy space in rigid skull; even benign tumors are dangerous
- Left Hemisphere StrokeAphasiaLeft hemisphere is language-dominant in most people; left hemisphere strokes cause expressive, receptive, or global aphasia
- Right Hemisphere StrokeUnilateral NeglectRight hemisphere handles spatial perception; right hemisphere strokes cause neglect of left body/visual field
- DysphagiaAspiration RiskDysphagia from stroke impairs swallowing; major risk for aspiration pneumonia requiring strict diet and swallowing precautions
- Atrial FibrillationCardioembolic StrokeIrregular heart rhythm creates stasis and clot formation in left atrium; emboli travel to cerebral circulation causing ischemic stroke
- HypertensionHemorrhagic StrokeChronic hypertension is the single most important modifiable risk factor for both ischemic and hemorrhagic stroke
- Secondary PreventionAntiplatelet TherapyAfter stroke or TIA, antiplatelet agents (aspirin, clopidogrel) reduce risk of recurrent ischemic stroke
- FAST AssessmentStroke RecognitionMnemonic for public education on acute stroke signs: Face drooping, Arm weakness, Speech difficulty, Time to call for help
- Monro-Kellie DoctrineICP PathophysiologyPrinciple that skull is rigid and contains brain tissue, blood, and CSF; any increase in one must be compensated by decrease in others
- PenumbraReperfusion TargetArea of at-risk tissue surrounding ischemic core; salvageable if blood flow restored quickly via tPA or thrombectomy
- Middle Meningeal ArteryEpidural HematomaCommon source of arterial bleeding in epidural hematoma; rapid accumulation of blood between skull and dura
- Subarachnoid HemorrhageWorst Headache EverClassic presentation of ruptured cerebral aneurysm causing SAH; sudden severe headache is pathognomonic
- Meningeal IrritationNeck StiffnessBlood irritates meninges in SAH causing neck stiffness; positive Kernig and Brudzinski signs
- CraniotomyBrain Tumor ResectionSurgical procedure for brain tumor removal; primary treatment for accessible tumors
- Halo Ring SignCSF ConfirmationYellow halo around blood on gauze in suspected CSF leak; presence of glucose confirms CSF rather than other fluids
- Valsalva ManeuverICP ElevationStraining, coughing, and bearing down increase intrathoracic pressure, which impedes venous return and raises ICP
- Cerebral Perfusion PressureAdequate Brain OxygenationCPP = MAP minus ICP; maintains adequate pressure gradient to perfuse brain tissue; target CPP 60-70 mmHg
- FeverIncreased Cerebral MetabolismFever increases metabolic rate and cerebral metabolic demands; aggressive temperature management essential in ICP elevation
- Antiseizure ProphylaxisICP PreventionSeizures dramatically increase cerebral metabolism and ICP; prophylaxis indicated when seizure risk is high
- Controlled HyperventilationCerebral VasoconstrictionBrief hyperventilation to PaCO2 30-35 mmHg causes cerebral vasoconstriction to reduce ICP in acute crisis; temporary measure only
- Decorticate PosturingCerebral Hemispheric DysfunctionArms flexed, legs extended; indicates dysfunction at midbrain/upper brainstem level from increased ICP
- Decerebrate PosturingBrainstem DysfunctionBoth arms and legs extended; indicates lower brainstem dysfunction from severe increased ICP; worse prognosis than decorticate
- Pupillary Dilation CN IIIUncal HerniationUnilateral fixed dilated pupil indicates compression of CN III by uncus during herniation; emergency sign requiring immediate intervention
- Penumbra SalvageNeurological OutcomeSuccessful reperfusion of penumbra tissue salvages neurons and improves long-term functional outcome
- Last Known Well TimetPA EligibilityExact time of symptom onset is critical for tPA eligibility determination; unknown onset may exclude patient from thrombolytic therapy
Diagrams
Cerebrovascular Disorders and Increased ICP - Complete Concept Hierarchy
Comprehensive mind map showing all major concepts in cerebrovascular disorders and increased ICP, organized by pathophysiology, clinical manifestations, assessment findings, management strategies, and complications. This map displays the hierarchical relationship between stroke types, TIA, traumatic brain injury, brain tumors, and ICP management, aligned with the nursing process and Philippine healthcare context.
Acute Stroke Management Protocol and tPA Administration Pathway
Detailed flowchart depicting the acute stroke management protocol in Philippine healthcare settings. Shows the decision tree from patient presentation through differential diagnosis (ischemic vs hemorrhagic), tPA eligibility criteria, contraindications, administration protocol with weight-based dosing, monitoring parameters, and post-treatment care. Incorporates safety checks aligned with NLE examination standards and RA 9173 nursing practice guidelines.
Increased Intracranial Pressure Assessment and Nursing Intervention Cascade
Comprehensive flowchart showing systematic assessment and intervention cascade for increased intracranial pressure management. Demonstrates early recognition of danger signs (decreasing LOC) versus late ominous signs (Cushing's triad), prioritized nursing interventions following Maslow's hierarchy, positioning protocols, airway management, environmental modification, pharmacological interventions stratified by edema type, and continuous reassessment. Aligned with NCM Level 2-3 nursing practice and Philippine critical care standards.
Stroke Type Differentiation and Clinical Presentation Algorithm
Algorithm for differentiating stroke location based on clinical presentation and hemisphere affected. Shows how left-hemisphere versus right-hemisphere strokes produce distinct clinical manifestations related to dominant versus non-dominant hemisphere functions. Demonstrates contralateral deficits, specific aphasia types, spatial-perceptual changes, and personality/behavior alterations. Maps clinical findings to tailored nursing interventions including positioning, communication strategies, and patient teaching approaches appropriate for each hemisphere.
Traumatic Brain Injury Progression and Management States
State diagram illustrating the progression of traumatic brain injury from initial impact through various presentations (concussion, epidural hematoma, subdural hematoma, basilar skull fracture) to clinical outcomes. Shows the critical lucid interval in epidural hematoma (surgical emergency), the insidious development of chronic subdural hematoma, special precautions for basilar skull fracture (no nasal packing, no nasogastric tube), and the postoperative care pathway including continuous ICP monitoring. Demonstrates the nursing process transitions between assessment states and intervention protocols.
Brain Tumor Assessment Diagnosis and Treatment Planning
Comprehensive flowchart for brain tumor assessment, diagnosis, and treatment planning. Demonstrates initial symptom recognition, ICP assessment, diagnostic imaging protocols (MRI with contrast), tumor characterization (primary vs metastatic, benign vs malignant), treatment decision-making (surgery vs radiation vs chemotherapy), and postoperative management. Includes dexamethasone use for vasogenic edema reduction, preoperative preparation with neurological baseline, and intensive postoperative monitoring aligned with craniotomy care standards in Philippine healthcare facilities.
Stroke Type Distribution and Clinical Significance
Pie chart illustrating the epidemiological distribution of stroke types in clinical practice. Approximately 80-85% of strokes are ischemic (thrombus or embolus), while 15-20% are hemorrhagic (intracerebral or subarachnoid). This distribution is critical for NLE examination preparation because it emphasizes that ischemic stroke is the more common presentation, making tPA therapy knowledge essential. The chart also underscores why the initial non-contrast CT scan is absolutely critical—it must differentiate between the two types because treatments are opposite: tPA helps ischemia but catastrophically worsens hemorrhage.
Neurological Assessment Decision Tree for ICP and Stroke Monitoring
Detailed neurological assessment algorithm showing the systematic approach to evaluating patients at risk for stroke or increased ICP. Follows the priority sequence: level of consciousness (earliest indicator of danger), pupillary changes (CN III compression suggesting herniation), cranial nerves, motor function (determining hemisphere), sensory status, speech/language (aphasia identification), and vital signs (Cushing's triad as late ominous sign). Aligned with NANDA nursing diagnoses and appropriate for Philippine NCM Level 2-3 critical care nursing practice.