patofisiologi gangguan aktivitas akibat gangguan neurologis
DESCRIPTION
Patofisiologi Gangguan Aktivitas Akibat Gangguan NeurologisTRANSCRIPT
ARIF SETYO UPOYO
PATOFISIOLOGI GANGGUAN AKTIVITAS AKIBAT GANGGUAN
MUSCULOSKELETAL, CARDIOPULMONAL DAN
NEUROLOGIS
Mahasiswa dapat menjelaskan patofisiologi gangguan aktivitas akibat gangguan musculoskeletal, cardiopulmonal dan neurologis
CAPAIAN PEMBELAJARAN
MUSCULOSKELETAL SISTEM
04/22/23
04/22/23
Kerusakan, gangguan, infeksi, trauma pada otot, tulang dan sendi serta jaringan ikat sekitarnya
Kerusakan mobilitas fisik
Nyeri, ketidakstabilan, gangguan keseimbangan dan koordinasi
JANTUNG
04/22/23
04/22/23
Gangguan pada jantung: disritmia, kelainan katub, gagal jantung, infeksi,SKA
Penurunan Cardiac Output
Perfusi jaringan menurun
Hipoksia
Metabolisme an aerob
Penurunan energi
Intoleransi aktivitas
PULMONAL
04/22/23
04/22/23
Gangguan, infeksi, trauma pada jalan nafas, paru, dinding dada, pusat pernafasan
Perubahan pertukaran Gas
Hipoksemia
Hipoksia
Metabolisme an aerob
Penurunan energi
Intoleransi aktivitas
REVIEW
UPPER MOTOR NEURONLOWER MOTOR NEURON
MOTOR NEURON
• Upper motor neurons (UMN) are responsible for conveying impulses for voluntary motor activity
• UMN send fibers to the LMN, and that exert direct or indirect supranuclear control over the LMN.
• Lower motor neurons (LMN) directly innervate the skeletal muscle
Berasal kortek serebri dan menjulur kebawah :Traktus kostiko bulbaris berakhir pada batang otak sampai nuklei N. carnialis.Traktus kortikospinalis menyilang bagian bawah medulla oblongata turun kedalam medulla spinalis sampai cornu anterior medulla spinalis.
Upper Motor Neuron
Mencakup sel – sel motorik nuklei nervus kranialis dan akson-aksonnya serta sel – sel kornu anterior medulla spinalis dan akson – aksonyaSerabut motorik keluar melalui radik anterior.
Lower Motor Neuron
SYARAF SPINAL
AdaTidak ada
Tidak adaSeringkali ada
FasikulasiKlonus
Fisiologis menurun/tidak adaPatologis -
Fisiologis meninggiPatologis +
Reflek
Atropi jelasDisuse atropiMassa otot
FlasidSpastisitasTonus
Bergantung LMN yang terkena yaitu segmen radik, syaraf yang mana
Lesi diotak : distribusi piramidalisLesi di medulla spinalis
Jenis dan distribusi kelemahan
LMNUMNKARAKTERISTIK
PERBEDAAN GANGGUAN UMN DAN LMN
SISTEM SYARAF OTONOM
StrokeHead injurySpinal cord traumaGuillan Barre SyndromaMultiple sclerosis
NEUROLOGY DESEASE
A problem in any of principle part of the brain or spinal cord involved with skeletal muscle control can affect mobility.
Cerebral motor cortek assume the major role of controlling precise, discrete movement.
Stroke or head trauma may damage motor cortex and produce temporary or permanent voluntary control impairment
PROBLEM AFFECTING THE CENTRAL NERVOUS SYSTEM
Basal ganglia integrate semivoluntary movement such as walking swimmming and laughing
Degenerative basal ganglia: parkinson’s desease : tremors and muscle rigidity which interfere with voluntary movement.
The cerebellum assist the motor cortex and basal ganglia by making body movement smooth and coordinated.
In multiple sclerosis , the myelin sheaths of neuron in the CNS deteriote to hardened scars or plaques. Plague formation in cerebellum may produce lack of coordination of one hand.
Terjadi akibat tersumbat atau pecahnya pembuluh darah serebral
Gejala tergantung pada area otak yang diperdarahi vaskuler tersebut
Penurunan perfusi pada daerah cortek motorik menyebabkan hemiparesis
STROKE
A forceful blow to the head can result in brain injuryMajor or minor, depending on extent of damageIntracranial hemorrhage– Hard blow to head results in blood vessel damage– Leading cause of deathClinical syndrome characterized by impairment ofneural functions : Loss of consciousness, disturbed vision, loss of equilibrium
Head Injuries
Dapat disebabkan oleh traumaGejala tergantung pada syaraf spinal mana yang cederaCedera pada radik anterior menyebabkan gangguan motorik
pada sisi yang sama
CEDERA MEDULA SPINALIS
Neurological disease that destroys myelin sheathsof axons
Has genetic componentDue to immune attack on myelinResults in progressive loss of nervous system
functionFatigue, muscle weakness, poor motor control, loss of balance, mental depression
Exercise can improve functional capacity and Leads to improved quality of life
Multiple Sclerosis
Disorder of basal gangliaResults in decreased production of neurotransmitter dopamineInhibiting amount of muscular movementControl of various muscular activitiesSymptoms– Involuntary movement or tremor– Difficulty carrying out slow movementsTreatment– Drugs that stimulate production of dopamine
Parkinson’s Disease
Guillain-Barré Syndrome
is an acute inflammatory demyelinating polyneuropathy a disorder affecting the peripheral nervous system. It is usually triggered by an acute infectious process.
The etiology of Guillain-Barré syndrome is unclear, but an autoimmune response is strongly suspected.
There is a preceding event or trigger that is often an infection. Occasionally, vaccinations have been known to trigger Guillain-
Barré syndrome. Approximately half of the people who develop Guillain- Barré
syndrome have a mild febrile illness 2 to 3 weeks before the onset of symptoms.
The febrile infection is usually respiratory or gastrointestinal. Approximately 25% of patients with this disease have antibodies
to either cytomegalovirus or Epstein-Barr virus
PATHOPHYSIOLOGY
• In Guillain-Barré syndrome, the myelin sheath surrounding the axon is lost.
• Demyelination is a common response of neural tissue to many agents and conditions, including physical trauma, hypoxemia, toxic chemicals, vascular insufficiency, and immunological reactions.
• Loss of the myelin sheath in Guillain-Barré syndrome makes nerve impulse transmission is aborted.
CLINICAL MANIFESTATIONS
• The syndrome may develop rapidly over the course of hours or days, or may take up to 3 to 4 weeks to develop.
• Most patients demonstrate the greatest weakness in the first weeks of the disorder.
• Patients are at their weakest point by the third week of the illness.
• In the beginning, a flaccid, ascending paralysis develops quickly.
• The patient is most commonly affected in a symmetrical pattern.
The patient may first notice weakness in the lower extremities that may quickly extend to include weakness and abnormal sensations in the arms.
Deep tendon reflexes are usually lost, even in the earliest stages.
The trunk and cranial nerves may become involved. Respiratory muscles can become affected, resulting in
respiratory compromise.Autonomic disturbances such as urinary retention and
orthostatic hypotension may also occur. Superficial and deep tendon reflexes may be lost. Some patients experience tenderness and pain on deep
pressure or movement of some muscles.
Sensory symptoms of paresthesias, including numbness and tingling, may occur.
Pain is a complaint in a large number of patients. It is aching in nature and often compared with the feeling of
muscles that have been overexerted. If there is cranial nerve involvement, cranial nerve VII, the
facial nerve, is most often affected. Guillain-Barré syndrome does not affect level of
consciousness, pupillary function, or cerebral function.Symptoms may progress for several weeks. The level of
paralysis may stop at any point. Motor function returns in a descending fashion. Demyelination occurs rapidly, but the rate of remyelination is
approximately 1 to 2 mm per day.
DIAGNOSIS
The history of the onset of symptoms can be revealing because symptoms of Guillain-Barré syndrome usually begin with weakness or paresthesias of the lower extremities and ascend in a symmetrical pattern.
A lumbar puncture may be performed and reveal increased protein.
Also, nerve conduction studies record impulse transmission along the nerve fiber.
Pulmonary function tests are done when Guillain-Barré syndrome is suspected to establish a baseline for comparison as the disease progresses.
Declining pulmonary function capacity may indicate the need for mechanical ventilation and management in an ICU.
04/22/23
Penurunan kesadaran, stroke, trauma medulla spinalislis, trauma syaraf spinalis, GBS gangguan syaraf motorik.
Penurunan fungsi motorik
Kerusakan mobilitas fisik