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Clonidine Patch kana Visine Eye-Drop Ingestion: The Central Alpha-2 Agonist 'Opioid-Mimic' Coma

Nhamba dze emergency dzinosiyana nenyika. Iri peji rinoshandisa 911, nhamba yeUnited States neCanada. Dzimwe nyika dzakawanda dzinoshandisa 112, 999, kana imwe nhamba. Tsvaga nhamba yenyika yako.

Kana mwana mudiki kana mwana mudiki akaunzwa kukamuri yekukurumidzira asina chaanoziva, akaremara, achifema ka6 chete paminiti, uye kuratidza ** classic pinpoint pupils (miosis) **, vese paramedic uye chiremba anobva afunga nezve ** fentanyl kana heroin opioid overdose **. Zvisinei, chechipiri, chepfu yeimba yakakurumidza yakaenzana inobudisa ** inenge yakafanana "opioid-mimic" coma ** yakabatanidzwa ne ** deep bradycardia (ine ngozi inononoka kurova kwemwoyo), hypothermia, uye biphasic blood pressure swings : Central Alpha-2 Adrenergic Agonists uye Imidazoline Decongestants . Mumamiriyoni emisha nhasi, ** clonidine (Catapres, Kapvay) uye ** guanfacine (Intuniv, Tenex) inonyorerwa kwete chete kumadzisekuru eBP, asiwo semapiritsi ezuva nezuva kana 7-zuva ** transdermal skin patches (Catapres-TTS) kurera vana/kurera vana uye kurera vana. Disorder (ADHD), autism spectrum sleep disorder, tic kusagadzikana, uye neonatal opioid kurega **. Panguva imwe chete, makabati ekugezera uye zvikwama zvine mabhodhoro ekusvina e-over-the-counter ** "bvisa dzvuku" madonhwe emeso evasoconstrictor uye zviputi zvemhino ** zvine tetrahydrozoline (Visine Original), oxymetazoline (Afrin, Visine L.R.), naphazoline (Clear Eyes,), kana Alphagan yemishonga, kana Alphagandine makabati anobata alpha-2 muscle relaxant ** tizanidine ( Zanaflex *) **, chiremba wemhuka / zvisiri pamutemo sedative ** xylazine ("Tranq") **, kana chikosoro / spasticity drug ** baclofen **. Nekuti "yakashandiswa" 7-day clonidine chigamba cheganda chakaraswa mumarara chichiri kubata 50% to 75% chese chemilligram reservoir, mwana mudiki anokweva chigamba paruoko rwake (kana kubva mumarara) ochitsenga kana kuyamwa pachiri - kana mwana anongomedza **hafu yetipuni (2 to 5 mL) yeVisine eye inodonha ** - inotora chiyero chikuru chakananga muuropi mukati me ** 15 kusvika kumaminitsi e45 *, kuvhara pakati petsitsi kunze kwekubuda uye kunokonzera ** coma, cyclic apnea (apo mwana anomira kufema chero akasara ari oga, ozomuka uye kufema kwenguva pfupi kana akazununguswa kana pinch), sinus bradycardia yakaoma, sinus bradycardia *.

Kana mwana kana munhu mukuru akatsenga chigamba checlonidine, akamedza mamwe mapiritsi eclonidine, guanfacine, kana tizanidine, kana kunwa kunyange madonhwe mashoma emaziso anobvisa tsvuku kana pfapfaidzo yemhino, fonera nhamba yako ye emergency (911 muUnited States neCanada, 112 mhiri kweEuropean Union, 999 muUnited Kingdom) kuburikidza neyedu. nhamba dze emergency dhairekitori nekukurumidza, uye ongorora opioid overdose uye naloxone kununura, beta-blocker uye calcium channel blocker overdose,uye CPR yevana uye yevacheche.

Ita izvi ikozvino

  1. ** Dana 911 / 112 / 999 pakarepo - USAITA kutyaira mwana kuchipatara mumotokari yega **: Central alpha-2 agonists (**clonidine, guanfacine, tizanidine ) uye imidazoline madonhwe eziso ( tetrahydrozoline / Visine, oxymetazoline / Afrin, conscious kurasikirwa, consciousness yekufema, nabzoline, nabzoline) inoputika. kusungwa (apnea), uye bradycardia yakaoma mukati me ** 20 kusvika kumaminitsi makumi matanhatu ** yekudya. Gara uchishandisa Advanced Life Support (ALS) ambulensi kuitira kuti vabatsiri vagone kutsigira kufema uye kurova kwemoyo munzira.
  2. **Svairai muromo nokuda kwechigamba chipi nechipi chakatsengwa kana kumedzwa chetransdermal UYE tarisai muviri wose wemwana kuti ane zvigamba zveganda zvakavanzwa : Kana ** clonidine chigamba (Catapres-TTS-1, TTS-2, kana TTS-3) chichibatanidzwa, tarisa mukati memuromo wemwana (pasi porurimi uye mukati mematama) nepukisi munwe nemwenje. Tevere, kurura mbatya dzemwana zvachose wotarisa musana, mapendekete, chipfuva, magaro, nemakumbo kuona chigamba chakanamira (zvigamba zvinowanzoendeswa paganda remwana mudiki paunenge wakarara pamwe chete nomubereki kana kuti mukoma nomunun’una). Geza nzvimbo yeganda ne ** sipo nemvura ** (kusambofa doro kana acetone, iyo inovhura pores yeganda uye inowedzera transdermal clonidine absorption).
  3. ** Shandisa "Tactile uye Verbal Stimulation" kupikisa "Early-Onset Cyclic Apnea" uchimirira ambulensi **: Chimwe chezvinhu zvinoshamisa uye zvine ngozi zviratidzo zveclonidine uye Visine chepfu ndeye ** inosimudzira-inotsamira cyclic apnea : nguva iyo mukamuri yakanyarara uye hapana munhu ari kudonhedza mwana, uye akadzika mumwana wake. kurega kufema zvachose (apnea) uku kurova kwemwoyo yavo kuchidzika ; asi paunokwesha tsinga yavo, uchikwenya pasi petsoka dzavo, kana kutaura nenzwi riri pamusoro kwavari, vanovhura maziso avo kwekanguva votora mafemo akawanda vasati vambopinda muapnea kechipiri unorega kuvakurudzira. Ramba uchikurudzira uye uchitaura nemwana ari kutsimwaira uye chengeta nzira yavo yekufema yakavhurika kusvikira vabatsiri vatora masimba.
  4. Ipa yakakwira-dose Naloxone (Narcan) kana kufema kuri kunonoka kana kudzika (uye nzwisisa kuti nei chiyero chidiki chidiki chinowanzotadza): Kunyangwe iwe uchiziva chepfu iri ** clonidine, guanfacine, kana tizanidine ** (uye kwete opioid), pakati alpha-2 agonist inoburitsa endogenous brain endorphins inopindirana neopioid. Nepo mwero diki 0.4 mg naloxone doses inowanzokundikana munenge hafu yevarwere, ** high-dose Intravenous Naloxone (2 mg to 10 mg IV bolus muvana nevakuru) ** inomutsa murwere, inodzosera apnea, uye inovandudza BP uye kurova kwemwoyo kusvika ku ** 50% kusvika ku80% yezvakanyanya clonidine overdoses ** pasina zvinoda endotracheal intubation.
  5. USAITA kuti munhu arutse, uye usambopa mvura, mukaka, kana marasha akabatidzwa kumba: Nekuti kuneta uye kurasikirwa negag reflex inorova mukati memaminitsi gumi nemashanu kusvika makumi matatu, chero chinhu chinoiswa mudumbu kumba chinokonzeresa njodzi yekukurumidza kuuraya pneumonia.
  6. ** Nyevedza boka rekamuri rekukurumidzira nezve "Biphasic Blood Pressure Trap" (Early Paradoxical Hypertension -> Late Hypotension): Pakarepo mushure mekuwandisa kweclonidine, guanfacine, kana Visine overdose, kuwanda kweropa kunokurudzira peripheral vascular alpha-2B uye alpha-1 receptors0-0-0-kumanikidza ropa muchidimbu chidimbu che2. (paradoxical hypertension) uye reflex bradycardia pamberi pechepakati brainstem alpha-2A bckade inotora uye inodonhedza murwere mu kurebesa low blood pressure (hypotension)**. **Yambiro vanachiremba USAFANISE kupa mishonga BP inogara kwenguva refu kana mabeta-blockers munguva pfupi pfupi iyoyo yehypertension spike, kana kuti murwere acharwara nekudonha kwemoyo kweawa imwe gare gare kana hypotensive phase yarova.

Nei Ziso Rinodonha ('Visine' / 'Akachena Meso') uye Nasal Sprays ('Afrin') Ari Poison Inouraya Kana Yakamedzwa (Uye Inoshandiswa MuNhai Drink Spiking)

Over-the-counter redness-relief eye drops (tetrahydrozoline 0.05%, naphazoline, brimonidine) uye 12-awa nasal decongestant sprays (oxymetazoline 0.05%, xylometazoline) ari imidazoline derivatives - the exivatives family** - MuZiso kana Mumhino: Donhwe rimwe chete rinomisa tsinga diki dzeropa (peripheral alpha-1/alpha-2B) ine shoma systemic kutorwa. - Kana Yakamedzwa Nemwana Mucheche (1 to 5 mL): Imidazolines inotorwa nekukurumidza kubva mudumbu uye inoyambuka yakananga muuropicentral alpha-2A receptors uye imidazoline-1 [I1] receptors), zvichikonzera ** kuoma kukuru, kuona vadzidzi, hypothermia (< 35 C / 95 F), bradycardia, hypotension, uye kufema kusungwa mukati memaminitsi gumi nemashanu kusvika makumi matanhatu**. (Cherechedza: Mabhodhoro anodonhedza maziso HAAGARO aine kepisi dzinodzivirira kuvana kunze kwekunge zvarairwa nemutemo, uye kusvina bhodhoro kunopinza karukova mumuromo memwana mudiki). - Nhavi Drink Spiking ("The Visine Urban Legend"): Ngano yemudhorobha inoramba ichiti kuisa Visine ziso rinodonhera muchinwiwa chinodhaka chemumwe munhu kana mvura kunokonzera "manyoka anoputika" asingakuvadzi (sezvinoratidzwa mumafirimu ekuHollywood). **Chaizvoizvo, tetrahydrozoline HAIkonzere manyoka zvachose - haina kunhuhwirira, isina ruvara, isinganakidze yepakati alpha-2 agonist neurotoxin iyo inouraya pakoma, bradycardia, hypotension, uye kusungwa kwemoyo **, uye inotongerwa mhosva yehupfu ino onekwa paLC-MS/MS forensic ropa uye weti mapaneru.

Muti wesarudzo: Kuziva uye kutonga Central Alpha-2 Agonist & Imidazoline ("Opioid-Mimic") Poisoning

flowchart TD
    Start["Anofungidzirwa kuti Pakati Alpha-2 Agonist / Imidazoline Exposure KANA Unexplained Pediatric 'Opioid-Mimic' Coma (Pinpoint Pupils + Apnea + Bradycardia)"] --> SourceID{"Ziva Chaiyo Mumiriri & Nzira"}

    SourceID -->|1. Clonidine (Catapres Pills or TTS Transdermal Patch) or Guanfacine (Intuniv ER / Tenex)| ClonidineGroup["Clonidine Toxic Threshold muMwana: > 0.1 mg (kana > 0.005-0.01 mg/kg) = Imwechete 0.1 mg Pill kana Chero Chewed TTS Patch (Ine 2.5 mg, 5.0 mg, kana 7.5 mg Total) -> Kutanga 30-60 min (Guanfacine 1 maawa)"]

    SourceID -->|2. Imidazoline Eye Drops / Nasal Sprays (Tetrahydrozoline [Visine], Oxymetazoline [Afrin], Naphazoline, Brimonidine [Alphagan/Lumify])| VisineGroup["Kunyanya Kukurumidza Kutanga (15 kusvika 45 Maminitsi): Zvishoma se 1-2 mL ye0.05% Solution (0.5-1 mg) muMwana Mudiki Inokonzera Deep Coma, Hypothermia, Miosis, Apnea, & Bradycardia"]

    SourceID -->|3. Tizanidine (Zanaflex), Dexmedetomidine (Precedex), or Xylazine ('Tranq' Adulterant in Illicit Fentanyl)| TizanidineGroup["Tizanidine Inowedzera QT Kuwedzera & Hepatotoxicity; Xylazine Inokonzera Maronda Akanyanya Necrotic Skin + Naloxone-Resistant Alpha-2 Coma Yakabatanidzwa neFentanyl Kusungwa Kufema"]

    ClonidineGroup --> DeconStep["Immediate Decontamination & Airway Check: 1. Bvisa Chero Chigamba kubva Mumuromo kana Ganda & Geza Ganda neSipo / Mvura 2. Shandisa Tactile / Verbal Stimulation yeCyclic Apnea; Tsigira Airway/Bag-Mask Ventilation 3. Yese-Bowel Irrigation (PEG-ES) CHETE Kana Intact Clonidine Patch Yakamedzwa Yese."]
    VisineGroup --> DeconStep
    TizanidineGroup --> DeconStep

    DeconStep --> NaloxoneTrial["HIGH-DOSE INTRAVENOUS NALOXONE TRIAL (Kune CNS Kuora mwoyo, Apnea, kana Hypotension / Bradycardia): - Shandisa High-Dose Naloxone: 0.1 mg / kg IV (kana 2 mg kusvika 10 mg IV Bolus muVana & Vakuru) - Kana Positive Awakening / Respiratory Respiratory: Kutanga IV / Respiratory Respiratory2IV Inoshanda Kumuka-Up Dose paawa (Zvikasadaro Endotracheal Intubation & Mechanical Ventilation)"]

    NaloxoneTrial --> HemodynamicPhase{"Ndeipi Chikamu cheBiphasic Hemodynamic Response Chiripo?"}

    HemodynamicPhase -->|Phase 1: Early Paradoxical Hypertension + Reflex Bradycardia (Peripheral Alpha-2B/Alpha-1 Vasoconstriction, First 1-3 Hours)| EarlyHTN["YAMBIRO: USAPA maAntihypertensive Anogara kwenguva refu kana Beta-Blockers (Zvichakonzera Kuparara Kunouraya Kana Chikamu Chechipiri Chinorova) - Ona Mild/Moderate HTN Isina Kurapwa (Inogadzirisa Pakarepo mu1-3h) - Kana Hupenyu-Inotyisidzira Hypertensive Dambudziko: Shandisa CHETE IV Ultraing-Actrodium Titra-Nitro-Short. Phentolamine"]

    HemodynamicPhase -->|Phase 2: Dominant Central Sympatholytic Hypotension + Sinus Bradycardia / AV Block (Central Alpha-2A / Imidazoline-1 Blockade, Lasting 12-48 Hours)| LateHypo["1. Symptomatic Bradycardia: IV Atropine (0.02 mg/kg in Child [Min 0.1-0.5 mg]; 0.5-1 mg in Adult) -> Escalate to Epinephrine or Dopamine Infusion if Needed 2. Hypotension: 20 mL/kg IV 0.9% Normal Saline Crystalloid Bolus -> Direct Vasopressor Infusion (Norepinephrine or Epinephrine)"]

Pathophysiology: Sei Central Alpha-2 Agonists Inotevedzera Opioids uye Gadzira iyo Biphasic Ropa Kudzvinyirira Musungo

1. Sei Clonidine uye Visine Zvinokonzera Kunongedza Vadzidzi, Coma, uye Apnea (Locus Coeruleus Inhibition)

Iyo ** locus coeruleus ** iri mumapons e brain brain ndiyo yepakati yekuraira nzvimbo ye noradrenergic (norepinephrine) kumutsa, kumuka, kufema mweya, uye pupillary dilation muuropi hwemunhu.

  1. Presynaptic Alpha-2A Autoreceptor Activation (Gi/o Protein Coupling): Ose ** opioid receptors (mu-opioid) ** uye ** alpha-2A adrenergic receptors (alpha-2A)** dziri padivi-ne-parutivi pane neuroni dzelocus coeruleus uye dzinogovana iyo ** chaiyo yakafanana intracellular potassium/calcium signaling channels (Gi/o protein coupling iyo inhibits adenylate cyclase, inovhura mukati-kugadzirisa GIRK potassium channels to hyperpolarize the neuron, uye inovhara voltage-gated calcium channels)**.
  2. Total Sympathetic Shutoff ("Opioid-Mimic" Toxidrome): Kana clonidine, guanfacine, tizanidine, xylazine, kana tetrahydrozoline (Visine) inofashamira muuropi uye inoita kuti **central presynaptic alpha-2A uye imidazoline-1 (I1) receptors ** mune locus coeruleus uye rostral ventrolateral medulla:
  3. Norepinephrine kusunungurwa muuropi inodonha kusvika pedyo-zero, ichinyudza murwere mu ** coma ** (iyo inoshandura zvakasiyana kwemasekonzi mashomanana panguva inorwadza / tactile stimulation se ancillary sensory pathways pfupi moto).
  4. Inopikiswa parasympathetic toni kubva ku ** Edinger-Westphal nucleus ** inomanikidza iris sphincter, ichiburitsa ** pinpoint pupils (miosis) ** isingazivikanwi kubva kune fentanyl kana heroin.
  5. Medullary kufema nzvimbo dzinorasikirwa netsitsi, zvichikonzera ** bradypnea uye cyclic apnea **.
  6. Efferent sympathetic toni kune sinoatrial (SA) node, atrioventricular (AV) node, uye peripheral tsinga yeropa inobviswa, nepo vagal parasympathetic toni inotonga, zvichikonzera ** deep sinus bradycardia, AV heart block, systemic vasodilation (hypotension), uye hypothermia **.

2. Nei Yakakwirira-Dose Naloxone (2 mg to 10 mg IV) Inoshanda muMazhinji Clonidine Overdoses

Kwemakumi emakore, varapi vaikakavadzana kuti naloxone (Narcan) inoshanda muchepfu yeclonidine nekuti nyaya dzekutanga dzinotaura dzichishandisa diki. 0.1 mg to 0.4 mg madosi akaratidza migumisiro isingaenderani. Zvidzidzo zvemazuva ano zve toxicology yevana zvinoratidza kuti ** yepakati alpha-2 kukurudzira kukonzeresa kuburitswa kwe endogenous beta-endorphins mu brainstem **, iyo inobata-activate. mu-uye delta-opioid receptors pane chaiyo yakafanana Gi-akabatanidzwa locus coeruleus neurons.

  • **Nei Madoro Akakwirira Achidiwa : Kuvhara iyi endogenous endorphin co-activation inoda ** supratherapeutic yakakwira-dose Intravenous Naloxone (0.1 mg/kg IV, kana 2 mg to 10 mg IV bolus yakazara muvadiki nevakuru).
  • Mukiriniki yakatevedzana yevana clonidine overdoses, kutungamira ** kusvika 10 mg ye IV naloxone ** yakakurumidza kumutswa ** 50% kusvika ku80% yevana vane comatose / apneic **, vachivadzivirira kubva endotracheal intubation uye ICU mechanical ventilation, uye inenge zero yakaipa migumisiro muvana vasina-opioid-vanovimba. (Cherechedza: High-dose naloxone inonyanya kushanda mu imidazoline eye-drop [Visine] uye xylazine chepfu kupfuura mumishonga clonidine chepfu, kunyange kuedza kunogara kwakachengeteka uye kunokurudzirwa).

3. Iyo Biphasic Hemodynamic Trap: Nei Phase 1 Hypertension Ichichinja Kuita Chikamu Chechipiri Kuvhunduka

Pakarepo mushure mekumedza dosi hombe reclonidine, guanfacine, kana tetrahydrozoline, kuwanda kwemushonga mu peripheral bloodstream kunokwira mushonga usati wanyatsoenderana nepakati peropa-brain barriers kupinda mubrainstem:

  • ** Phase 1 (Kutanga 30 kusvika ku180 Maminitsi - Peripheral Alpha-2B Vasoconstriction) : Yakakwira plasma yakawandisa inosimudzira zvakananga ** postsynaptic peripheral alpha-2B uye alpha-1 receptors ** pane vascular smooth muscle masero ari mutsinga, zvichikonzera ** yakanyanya peripheral vasoconstriction, yakanyanya kupfupika hypertension (semuenzaniso, BP 180/110 mmHg mumwana kana 230/130 mmHg mumunhu mukuru), kucheneruka kunotonhorera, uye baroreceptor-mediated reflex bradycardia.
  • ** Phase 2 (Maawa 2 kusvika 48 - Central Alpha-2A Sympatholysis) **: Mukati 1 kusvika 3 maawa, peripheral zvinodhaka mazinga anogoverwa mumatishu uku pakati brain brain alpha-2A inhibition inotora murairo uzere, ichivhara inzwi retsitsi uye zvichiita kuti ropa riite **kudonha kubva kune yakanyanya hypertension yakananga mu hypotension yakareba uye bradycardia **.
  • ** The Iatrogenic Disaster **: Kana chiremba asina ruzivo achibata Phase 1 hypertension ne ** labetalol, metoprolol, propranolol, hydralazine, kana nifedipine **, njodzi mbiri dzinoitika: (1) beta-blocker inobvisa chero yasara beta-adrenergic rubatsiro paunenge uchisiya peripheral alphatension 2, phasoconstriction alphasoconstriction, 2 vasoconstriction, alphasoconstriction. inosvika maminitsi makumi matanhatu gare gare, iyo yakareba-yakareba antihypertensive haigoni kuvharwa, zvichiita ** refractory cardiogenic uye vasodilatory shock **.

Master Comparison Table: Central Alpha-2 Agonists, Imidazoline Eye/Nasal Drops, uye Xylazine

Mushonga / Chigadzirwa Kirasi & Yakajairika Brand Mazita Typical Strengths & Akavanzika Reservoir Njodzi Pediatric Toxic Dose Threshold Kutanga, Peak & Yese Yenguva Yehupfu Chinokosha Kusiyanisa Clinical & ECG Features
1. Clonidine Oral Tablets & Transdermal Patches
(Catapres, Kapvay ER, Catapres-TTS-1 / TTS-2 / TTS-3)		 - Mahwendefa: 0.1 mg, 0.2 mg, 0.3 mg.
* Transdermal Patches (Catapres-TTS)**:
TTS-1 (0.1 mg/day) ine 2.5 mg (2,500 mcg) zvakazara
TTS-2 (0.2 mg/day) ine 5.0 mg zvakazara
TTS-3 (0.3 mg/day) ine 7.5 mg zvakazara		 ** Chero chipiro > 0.005 to 0.01 mg/kg** (> 0.1 mg mumwana mudiki - ** imwe chete 0.1 mg piritsi kana kutsenga chero chigamba chinoshandiswa/chitsva** chinokonzera pakoma uye apnea). Kutanga: 30 to 60 minutes (zviratidzo zvinogara zvichitanga mukati <= 4 hours yemapiritsi ekusunungurwa-pakarepo).
Kutora nguva: 12 to 36 hours (kusvika 48+ hours kana chigamba chakamedzwa chose).		 Classic Opioid-Mimic Triad: Pinpoint pupils, coma with stimulus-responsive cyclic apnea, hypothermia, biphasic BP (yakatanga HTN -> yakareba hypotension), uye yakasimba sinus bradycardia / AV block. Inopindura ** yakakwira-dose Naloxone (2-10 mg IV)** mu50-80% yemakesi.
**2. Guanfacine **
(Tenex [Pakarepo-Kuburitswa], Intuniv [Yakawedzerwa-Kuburitswa])		 Mahwendefa e 1 mg, 2 mg, 3 mg, 4 mg (yakatemerwa zvakanyanya kuvana kune ADHD). > 2 mg ku 4 mg mumwana mudiki (kana > 0.05 to 0.1 mg/kg) KUNONOKA KUNONONZERA KUSVIRA MUSUNGO: Nepo kubatwa nehope kunotanga mukati 1 to 4 hours, ** yakanyanya orthostatic hypotension uye bradycardia kubva ku Intuniv ER kazhinji HAZVINOGONA kusvika 6 to 18 hours mushure mekudya ** uye yekupedzisira 24 to 48+ hours Zvimwe zvakasarudzwa zvepakati alpha-2A receptors kupfuura clonidine; ** inosungirwa 24-awa inpatient telemetry monitoring ** inodiwa nekuti peak bradycardia/syncope inoitika paZuva 1-2 mushure mekuneta kwave kutovandudza.
3. Tizanidine
(Zanaflex)		 Mahwendefa/capsules zve 2 mg, 4 mg, 6 mg (skeletal muscle relaxant). > 2 to 4 mg mumwana; > 12 to 24 mg mumunhu mukuru (kukurudzira kukuru kana kunoshandiswa pamwe chete neCYP1A2 inhibitors ** seCiprofloxacin** kana Fluvoxamine, iyo inowedzera Tizanidine mazinga ** kagumi kusvika makumi matatu nematatu**). Kutanga: 30 to 60 minutes.
Kutora nguva: 8 to 24 hours.		 Central alpha-2 coma, bradycardia, uye hypotension ** PLUS yakawedzera nguva yeQTc (IKr blockade / Torsades de Pointes njodzi)** uye acute hepatic transaminase kukwidziridzwa.
**4. Imidazoline Eye Drops & Nasal Sprays
- Tetrahydrozoline (Visine Yekutanga 0.05%)
- Oxymetazoline (Afrin 0.05%, Visine L.R., Rhofade)
- ** Naphazoline ** ( Akajeka Meso, Privine )
 Brimonidine * (*Alphagan 0.1-0.2%, Lumify 0.025%, MirvasoGel)		 0.05% = 0.5 mg/mL (15 mL bhodhoro rinobata 7.5 mg zvachose).
Brimonidine glaucoma inodonha (0.2% = 2 mg/mL) kana Mirvaso rosacea gel (0.33%) kukonzera apnea inotyisidzira hupenyu muvacheche kunyangwe kubva ku**madonhwe ekurapa maziso kana kutsvoda ganda rakarapwa **		 >= 1 to 2 mL (0.5 to 1.0 mg) ye 0.05% Visine kana Afrin yakamedzwa nemwana mudiki inokonzera zvakanyanya CNS/cardiovascular depression (Brimonidine madonhwe emaziso anonyatsopikiswa muvana. < 2 years old). Kutanga : ** Kukurumidza kwazvo (15 to 45 minutes).
Kutora nguva**: 12 to 24 hours (kusvika 36 hours yeOxymetazoline kwenguva refu).		 Kuora mwoyo kwakanyanya/coma, pinpoint pupils (kana transient mydriasis), marked hypothermia (< 35 C), apnea, early hypertension inoteverwa nebradycardia/hypotension. HAIkonzere manyoka.
5. Xylazine ("Tranq")
(Veterinary Alpha-2 Sedative & Illicit Fentanyl Adultant)		 Yakasanganiswa mumugwagwa ** fentanyl / heroin ** poda kana mapiritsi ekunyepera akadzvanywa (kana veterinary 20 mg/mL / 100 mg/mL mbiya). Chero kuratidzwa kwevanhu kunoburitsa yakadzika yepakati alpha-2 sedation uye hemodynamic kudonha. ** Kutanga : Maminitsi (IV/intranasal/kusvuta) kana 15-30 min (IM/Oral).
Kutora nguva**: 4 to 12+ hours.		 The Fentanyl + Xylazine Double Overdose: Ipa **Naloxone (0.4 to 2 mg) ** kudzorera ** fentanyl-induced breathing arrest **; murwere anotanga kufema zvakare (> 10-12 breaths/min) ** asi icharamba yakadzikama / isingateereri kubva kuXylazine ** ** USARAMBA uchisundira madosi makuru eNaloxone kana kufema kwadzorerwa ** (kunokonzera kubviswa kweopioid); tsigira nzira yemhepo uye yeropa panzvimbo.

Nhanho-ne-Nhanho Chipatara Management Protocol

1. Decontamination: Nguva Yokushandisa Kudiridza Ura Hwase kune Yakamedzwa Clonidine Patch

  • Chewed and Spit-Out Patch kana Liquid Eye Drops: Usa ** usa** kuita gastric lavage kana kuisa activated marasha emvura tetrahydrozoline/oxymetazoline madonhwe emaziso (ayo anotora zvachose mukati me15 kusvika 30 maminetsi uku kuneta kuchikonzera njodzi yakanyanya).
  • Itact Clonidine Transdermal Patch Yakamedzwa Yese: A Catapres-TTS chigamba chine kutsigira kusingapindiki uye chiyero chekudzora membrane ine **2.5 mg to 7.5 mg yeclonidine yakachena ** (25 kusvika ku75 nguva yemunhu mukuru wemuromo wemuromo) iyo icharamba ichirenda clonidine mukati medumbu uye mumatumbo kwe ** mazuva **. Kana mwana kana munhu mukuru akamedza chigamba checlonidine chakazara, shandisa Activated Charcoal (1 g/kg) (mushure mekuchengetedza mhepo kana uchikotsira) uye tanga Whole-Bowel Irrigation (WBI) nePolyethylene Glycol Electrolyte Solution (PEG-ES, GoLYTELY at 25 mL/kg/hr muvana kana 1.5 to 2 L/hr muvakuru kuburikidza nepanasogastric chubhu) kusvika chigamba chepurasitiki chapfuudzwa mutsvina yetsvina.

2. Hemodynamic uye Respiratory Rescue Sequence

  1. Nhepo & Kufema Kutanga (Kukurudzira -> Yakakwira-Dose Naloxone -> Intubation):
  2. Isa inoenderera pulse oximetry, ** end-tidal capnography (ETCO2)**, nekutarisisa moyo, uye shandisa kurudziro yemuviri zvinyoro nyoro pakupfava kwemhepo.
  3. Kuti urambe uine hypoventilation, apnea, kana deep coma, shandisa ** High-Dose Intravenous Naloxone (0.1 mg/kg IV kusvika 2 mg kutanga kusunda, kudzokorora nekukurumidza maminetsi maviri ega ega kusvika kuhuwandu hwe 10 mg IV)**. Kana yakanyanya-dose naloxone inodzorera kufema uye kumutsa, tanga ** inopfuurira IV naloxone infusion pa 66% (zvikamu zviviri muzvitatu) zveiyo inoshanda yekumuka-bolus dose paawa **; kana 10 mg inokundikana kudzorera mhepo yakakwana, ita ** endotracheal intubation uye mechanical ventilation **. (Yambiro: Munguva yekukurumidza kutevedzana intubation, pre-medicate ne IV Atropine 0.02 mg/kg nekuti laryngoscopy uye succinylcholine zvinogona kukonzera vagal sinus kusungwa mune anotova bradycardic clonidine murwere).
  4. ** Kutarisira Bradycardia (Atropine -> Epinephrine)**:
  5. Usabate asymptomatic mild bradycardia kana BP uye perfusion zvakajairika.
  6. Nokuda kwe **symptomatic bradycardia ine hypotension kana kusvibiswa kusina kunaka **, shandisa Intravenous Atropine (0.02 mg/kg muvana [minimum 0.1 to 0.5 mg]; 0.5 mg to 1 mg muvakuru, inodzokororwa kusvika 3 mg). Kana atropine ikakundikana, tanga Intravenous Epinephrine (0.05 to 0.3 mcg/kg/min) kana dopamine (5 to 15 mcg/kg/min) infusion kana kuisa transcutaneous pacing.
  7. Kugadzirisa Hypotension vs. Early Paradoxical Hypertension:
  8. Hypotension: Admini*10 to 20 mL/kg boluses ye 0.9% Normal Saline kana Lactated Ringer's ** uye isa murwere muTendelenburg / supine nzvimbo; kana hypotension ikaramba iripo, tanga yakananga Norepinephrine kana Epinephrine infusion. *(Cherechedza: ** Tolazoline **, nhoroondo yealpha-antagonist, ** inopesana uye yakasiiwa ** nokuti inokonzera zvisingatarisirwi arrhythmias, yakanyanya hypotension, uye GI kubuda ropa; *Yohimbine ** haiwaniki mune IV emergency formulations).
  9. Early Paradoxical Hypertension: Siyai hypertension yenguva pfupi isina kurapwa kunze kwekunge paine kukuvara kwakanyanya kwenhengo yemuviri (hypertensive encephalopathy, aortic dissection, kana pulmonary edema), iyo inoitika titrate CHETE ultra-short-acting Intravenous Sodium Nitroprusside (0.3 to 3 mcg/kg/min) kana Phentolamine (0.05 to 0.1 mg/kg IV maminitsi gumi ega ega) saka inogona kuvharwa nekudonha nekukurumidza kweropa.

Nzira yekurasa sei Yakashandiswa Clonidine (* Catapres-TTS *) Skin Patches

Nekuti chigamba chakasakara checlonidine chakabviswa mushure memazuva manomwe chichine zvakawanda zvinokwana clonidine kuuraya kana kukodha mwana mudiki kana imbwa yemumba: - Peta mativi anonamira anonamira zvakasimba pamwechete nepakati pakarepo pakuibvisa paganda kuti inamire pairi. - Isa chigamba chakapetwa mukati mehomwe yayo yekudzivirira yekurasa (kana kuipusha pasi muchimbuzi kana mitemo yeFDA "Flush List" ichishanda mumba ine pwere/mhuka dzinovaraidza, kana kuti chisimire mumudziyo usingabvumirwe nevana kuti udzoke kuchitoro chemishonga) - ** usambofa wakakanda chigamba chisina kupetwa muimba yekurara yakashama kana gaba remarara**.

Nhamba dzenharaunda dzechimbichimbi uye zvirongwa zveagency

Nharaunda / Nyika Emergency Ambulance Number National Poison Control Helpline Official Clinical Protocol Notes
United States neCanada 911 US: 1-800-222-1222 (America's Poison Centers) / Canada: 1-844-POISON-X US Consumer Product Safety Commission (CPSC) inoraira kurongedza kusingabvumirwe nevana kune imidazoline madonhwe emeso / maspray emhino ane >= 0.08 mg zvachose imidazoline; ** ACMT / Poison Center protocol ** inotsigira ** Yakakwira-Dose IV Naloxone (kusvika 10 mg)** yevana clonidine coma uye inosungirwa **24-awa yekucherechedza ** ye Intuniv (guanfacine ER).
United Kingdom 999 (kana 112) NHS 111 (Paruzhinji) / NPIS TOXBASE (0344 892 0111 kuvarapi) ** NPIS TOXBASE ** inotungamirira kutsigira kutungamirirwa kwemhepo, ** Atropine ** nokuda kwechiratidzo chebradycardia, IV crystalloids / vasopressors ye hypotension, kudzivisa beta-blockers mukutanga kwehypertension, uye kudiridza kwehuta hwese kune zvigamba zve transdermal.
European Union 112 Bata national poison centre kuburikidza ne112 (semuenzaniso, Germany +49 30 19240, France 01 40 05 48 48) zera rakasimba contraindications pa *brimonidine (< 2 years) ** uye vana imidazoline nasal decongestants ( oxymetazoline, xylometazoline * (*Otrivi*) inodonha muchhe); forensic labs screen ye tetrahydrozoline mukufungidzirwa kurwiswa kwezvinodhaka.
Australia neNew Zealand Australia: 000 / New Zealand: 111 Australia: 13 11 26 (Poisons Information Center) / New Zealand: 0800 764 766 Nhamba yepamusoro yevana clonidine (* Catapres *) inoratidzira apo mapiritsi anosanganiswa kana kuputsika kune ADHD yevana / kurara; Australian Poisons Information Center inotungamira kutumirwa kweED nekukurumidza kune chero mwana anodya > 1 mcg/kg (> 0.1 mgclonidine.
India neAsia-Pacific India: 112 / 108 / Singapore: 995 / Japan: 119 India: AIIMS Poison Center (1800-116-117) Kuwanikwa kwakapararira kweOTC xylometazoline / oxymetazoline (Otrivin, Nasivion) madonhwe emhino uye oral clonidine (Arkamin); vana chiremba vanosimbisa kusambodzvinya mabhodhoro ekudonhedza mhino dzevakuru mumhino dzevacheche (izvo zvinodzika nepanasopharynx mudumbu zvichikonzera koma/apnea).

Mibvunzo inowanzo bvunzwa

Kumedza madonhwe mashoma eVisine eye drops kana Afrin nasal spray kungapinza mwana sei pakoma?

Madonhwe emeso epamusoro-soro-anozorodza (aine tetrahydrozoline, naphazoline, kana brimonidine) uye 12-hour nasal decongestant sprays (ine oxymetazoline kana xylometazoline) ndeyeboka remakemikari rinonzi imidazolines - iyo chaiyo yemakemikari mhuri seBP uye ADHD mishonga cloni. Kana yaiswa sedonhwe rimwe chete paziso, inosunga tsinga dzeropa munzvimbo. Zvisinei, kana ikamedzwa - kunyange muzvikamu zviduku se 1 kusvika ku 2 milliliters (isingasviki hafu yeteapuni) - inokurumidza kutorwa kubva mudumbu uye inoyambuka ropa-brain chipingamupinyi kuti ikurudzire nechepakati alpha-2A uye imidazoline receptors mu brainstem, kuvhara kunzwira tsitsi kwemuviri uye kukonzera pinpoint pupils, hypobrady rate, kudzika kwemwoyo, kuderera kwemwoyo, hypobrady , uye cobrady , kushaya simba kwemwoyo. kufema (apnea) mukati memaminitsi gumi nemashanu kusvika makumi mana nemashanu.

Kuisa madonhwe eziso reVisine muchinwiwa chemumwe munhu kunokonzera manyoka semumafirimu, kana kuti ingano here?

Inhema uye inouraya ngano yemumaguta. Tetrahydrozoline (Visine) HAIkonzeri manyoka zvachose. Pane kudaro, kunwa chinwiwa chemumwe munhu ne tetrahydrozoline kana oxymetazoline madonhwe eziso zvinoburitsa isina ruvara, isinganakidze yepakati tsinga system neurotoxin uye cardiovascular depressant iyo inokonzeresa coma, hypothermia, bradycardia, kusungwa kwekufema, uye rufu, uye anotongwa semhosva yehupfu yehupfu inowonekwa zviri nyore nechipatara uye LC-MS yeropa.

Sei Naloxone (Narcan) dzimwe nguva inomutsa mwana akawandisa paClonidine kunyange zvazvo Clonidine isiri opioid?

Clonidine inokurudzira alpha-2A adrenergic receptors mune locus coeruleus yebrainstem, iyo inogovera chaiyo intracellular potassium uye calcium siginecha nzira semu-opioid receptors uye zvakare inokonzeresa kuburitswa kwehuropi chaihwo endorphins. Kunyange zvazvo madiki madiki e naloxone (`0.4 mg`) anowanzo kushaya simba kuti akunde chiitiko ichi, zvidzidzo zvekliniki toxicology zvinoratidza kuti kupa yakakwira-dose intravenous Naloxone (`0.1 mg/kg`, kana `2 mg to 10 mg IV` zvachose) inovharira iyi endogenous opioid co-activation uye inokurumidza kumutsa 50% kusvika 80% yevana vane yakanyanya clonidine coma uye apnea, kazhinji kuvadzivirira kubva pakuda kufema chubhu uye ventilator.

Sei zvine njodzi kuti chiremba ape mushonga weBP kana murwere weClonidine kana Visine akawandisa atanga kusvika aine BP?

Kuwedzeredza kukuru kweclonidine, guanfacine, kana Visine kunokonzeresa "biphasic" mhinduro yeBP. Pakati pemaminetsi makumi matatu kusvika ku120 ekutanga, huwandu hwezvinodhaka muropa hunokanganisa zvakananga tsinga dzeropa (kuburikidza neperipheral alpha-2B receptors), zvichikonzera kukwira kwechinguva kweBP yakanyanyisa mushonga usati wapedza kupinda muuropi. Kana mushonga wangopinda mubrainstem (Phase 2), unovhara zvese zvepakati tsitsi zvinobuda, uye BP yemurwere inorovera mukuderera kweropa kwenguva refu (hypotension) kwemaawa gumi nemaviri kusvika makumi matatu nematanhatu. Kana chiremba akapa mushonga weBP unoshanda kwenguva refu kana beta-blocker panguva pfupi iyoyo yekutanga-high-pressure yeropa, murwere anotambura kuvhunduka kukuru, kusingadzokerike mushure meawa kana Phase 2 yarova.

Sei mwana akamedza kusunungurwa kwenguva refu yeGuanfacine (Intuniv) achifanira kugara muchipatara kwemaawa makumi maviri nemana kunyangwe amuka orega kutarisa akarara?

Yakawedzerwa-kuburitswa guanfacine (Intuniv) ine yakasarudzika, inonyengera yenguva mukuwedzeredza: nepo kukotsira uye sedation kunoonekwa mukati mekutanga 2 kusvika 6 maawa uye kazhinji inovandudza neHora 8 kusvika 12, iyo yakanyanya cardiovascular mhedzisiro - yakanyanya kudzika orthostatic hypotension (kupera simba kana wakamira), sinus - PLEAK 2 QT kusvika nguva zhinji kuputika kwepekecardia, sinus bradycardia. 24 hours after mapiritsi amedzwa. Kubvisa mwana pa6 kana 8 maawa nekuda kwekuti vakamuka kunogona kukonzera kunonoka syncope uye bradycardic kuparara kumba.

Mazano anoenderana

Nzvimbo uye nhungamiro yepamutemo

  • American College of Medical Toxicology (ACMT) & America's Poison Centers: Clinical Toxicology Guidance paCentral Alpha-2 Agonist Overdose, Pediatric Clonidine Transdermal Patch Toxicity, uye High-Dose Naloxone Rescue.
  • United States Food and Drug Administration (FDA) & Consumer Product Safety Commission (CPSC): *Drug Safety Communication: Zvakakomba Zviitiko Zvakaipa Kubva Netsaona Kudya kweOver-the-Counter Eye Drops uye Nasal Sprays (Tetrahydrozoline, Oxymetazoline, Naphazoline) nevana *.
  • American Academy of Pediatrics (AAP): Pediatric "Piritsi Rimwe Rinogona Kuuraya" Initiative: Clonidine, Guanfacine, uye Imidazoline Derivative Poisonings muVacheche neVacheche.
  • National Poisons Information Service (NPIS, United Kingdom): TOXBASE Clinical Management Protocols yeClonidine, Guanfacine, Tizanidine, uye Imidazoline Decongestant Toxicity.
  • Centers for Disease Control and Prevention (CDC) & National Institute on Drug Abuse (NIDA): * Clinical Guidance yekupindura Fentanyl Yakasvibiswa neXylazine ("Tranq") Overdoses *.

Gwaro iri nderezvinangwa zveruzivo uye haritsivi kuongororwa kwehunyanzvi hwekukurumidzira, kubvunza Poison Control, kana kuchengetwa kwevana zvakanyanya. Nekuti clonidine patches uye imidazoline madonhwe emaziso anogona kukonzera kamwe kamwe cyclic apnea uye bradycardia yakakomba mukati memaminitsi, tinokurudzira zvakasimba kutora yakatenderwa maoko-parubatsiro rwekutanga uye yevana CPR kosi kuburikidza neInternational Federation of Red Cross neRed Crescent Societies (IFRC), yako yenyika Red Cross nzanga, St John Ambulance, kana ane certified local provider.