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cardio.atrial_flutter.alcohol-related.v1

Alcohol-related atrial flutter ("Holiday Heart Syndrome")

cardiologyacuteadultacuteinpatienttransitionoutpatient
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Phase E variant of cardio.atrial_flutter.v1 — narrowed to alcohol-related atrial flutter (Holiday Heart Syndrome). Inherits acute rate/rhythm + AC management from parent via routing; specializes for the alcohol-trigger axis with AUD treatment (naltrexone/acamprosate per AUDIT-C tier), withdrawal management (CIWA-driven benzodiazepine protocol), and lifestyle modification per LEGACY (PMID 25788534) + abstinence preferred per ALCOHOL-AF (PMID 31893513). Distinguishing features vs structural-substrate flutter: trigger is identifiable + modifiable (alcohol cessation MANDATORY); recurrence rate high if continued drinking; long-term AC per CHA2DS2-VASc rather than per alcohol status (isolated Holiday Heart in young patient with score 0-1 may not need lifelong AC; recurrent or older with score ≥2 → lifelong AC indicated). Severity triggers: severe withdrawal CIWA >15 with flutter persistence (sympathetic surge perpetuates arrhythmia — aggressive benzo + ICU); recurrence with continued drinking (escalate AUD + EP referral); Holiday Heart vs structural-substrate distinction (echo reveals alcoholic CMP → reroute to cardio.acute-hf.core.v1); AUDIT-C high-score outpatient referral failure (escalate to residential/IOP + address barriers); hemodynamic instability with flutter post-binge (DCCV + UFH + ICU). Routes acute withdrawal to ICU; routes alcoholic CMP discovery to cardio.acute-hf.core.v1; routes typical-morphology recurrent flutter to cardio.atrial_flutter.typical-cavotricuspid.v1 for CTI ablation candidacy (curative >95% per Calkins 2007 PMID 17572388). Manifest pointer reuses cardio.atrial_flutter.v1 manifest. Design-brief pointer reuses parent. Status INTEGRATED until terminology + RxNav-validated drug codes are reconciled. Authored 2026-05-15 by shard-06-cardio-acute as alcohol-related atrial flutter variant.

Entry points (4)

  • symptom
    New-onset palpitations, dyspnea, or fatigue within 12-48 h of acute alcohol binge (>5 drinks/day in 1 day) in patient without known structural heart disease — Holiday Heart Syndrome screen
    palpitations_post_alcohol_binge
  • imaging
    Atrial flutter (or AF) on 12-lead ECG with documented recent alcohol binge — confirm and trigger acute management
    aflutter_on_ecg_with_recent_binge_history
  • history
    Recurrent flutter episodes in patient with chronic heavy drinking (per AUDIT-C ≥4 male / ≥3 female, or self-reported >14 drinks/week male / >7 drinks/week female) — chronic alcohol-related flutter pattern
    recurrent_flutter_with_chronic_heavy_drinking
  • symptom
    Syncope, hypotension, or chest pain with flutter on monitor in post-binge patient — emergent rate/rhythm management
    syncope_or_unstable_with_aflutter_post_binge

Required inputs (17)

  • agerequired
    demographic • used at CONTEXT
    Holiday Heart Syndrome described in any age but especially young/middle-aged binge drinkers; CHA2DS2-VASc + age-related bleed risk for AC decision
  • sexrequired
    demographic • used at CONTEXT
    Female sex = +1 CHA2DS2-VASc; alcohol metabolism + pregnancy considerations; AUDIT-C cutoff differs (≥3 female vs ≥4 male)
  • sbprequired
    vital • used at RED_FLAGS
    SBP <90 with flutter RVR → DCCV indication; permissive HTN (alcohol withdrawal can elevate BP) requires careful titration
  • hrrequired
    vital • used at CONTEXT
    Flutter RVR HR >120 increases hemodynamic risk + symptom burden; rate control target HR 80-110
  • alcohol_binge_or_chronic_use_quantifiedrequired
    history • used at ENTRY
    Quantify binge (>5 drinks/day in 1 day = NIAAA threshold) vs chronic heavy use (>14 drinks/wk male / >7 drinks/wk female); AUDIT-C score; document last drink + amount; relate to flutter onset timing
  • ecg_12_leadrequired
    imaging • used at INITIAL_WORKUP
    Confirm flutter morphology (typical CTI vs atypical) + rate; rule out concomitant AF; QT for medication risk
  • echo_screening_for_structural_diseaserequired
    imaging • used at INITIAL_WORKUP
    TTE to rule out structural substrate (alcoholic cardiomyopathy if chronic; LA dilation; LV dysfunction) — distinguishes pure Holiday Heart from substrate-driven flutter requiring different long-term plan
  • electrolytes_mg_k_carequired
    lab • used at INITIAL_WORKUP
    Hypomagnesemia + hypokalemia common in binge drinkers (vomiting + poor intake); replete to Mg ≥2.0 + K ≥4.0 — required for rhythm stability + cardioversion success
  • ethanol_level
    lab • used at CONTEXT
    Document acute intoxication for trigger correlation; level >300 mg/dL with severe withdrawal expected if chronic heavy drinker
  • lft_panelrequired
    lab • used at CONTEXT
    AST/ALT/GGT for chronic alcohol use + cirrhosis screen; LFT abnormalities affect AC choice (warfarin vs DOAC; severe cirrhosis Child-Pugh C contraindicates DOAC)
  • tsh_screenrequired
    lab • used at INITIAL_WORKUP
    Hyperthyroidism + flutter overlap; mandatory screen in new-onset flutter per ACC/AHA 2024
  • troponinrequired
    lab • used at INITIAL_WORKUP
    Rule out ACS-related flutter; demand ischemia possible with rapid rate; alcoholic cardiomyopathy may have chronic troponin elevation
  • creatininerequired
    lab • used at TREATMENT
    eGFR for DOAC dosing; alcohol use disorder + renal dysfunction common
  • cha2ds2_vasc_factorsrequired
    history • used at RISK_STRATIFICATION
    CHA2DS2-VASc for AC indication; Holiday Heart self-limited <24-48 h may not require chronic AC if isolated, but cardioversion-eligibility window + uncertainty often drive 4-wk post-CV AC per ACC/AHA 2024
  • bleeding_historyrequired
    history • used at RISK_STRATIFICATION
    HAS-BLED for AC bleed-risk; alcohol use disorder elevates bleed risk (varices, GIB, falls, head injury); influences CV/AC strategy
  • audit_c_scorerequired
    history • used at RISK_STRATIFICATION
    AUDIT-C (Alcohol Use Disorders Identification Test - Consumption) brief 3-item screen; ≥4 male / ≥3 female = positive screen; ≥8 = severe AUD; drives brief intervention + referral pathway (SBIRT)
  • ciwa_score_for_withdrawal_riskrequired
    history • used at RED_FLAGS
    CIWA-Ar (Clinical Institute Withdrawal Assessment for Alcohol revised) score for withdrawal risk + severity; CIWA >15 = severe withdrawal needing benzodiazepine protocol; affects flutter management timing (severe withdrawal can perpetuate flutter)

12-phase flow (11)

  1. 1FRAME
    Alcohol-related atrial flutter = trigger-identifiable + modifiable arrhythmia in (typically) structurally normal heart. Acute focus: rate control + cardioversion + alcohol cessation; Long-term focus: AUD treatment + lifestyle modification per LEGACY (PMID 25788534) + abstinence per ALCOHOL-AF (PMID 31893513). Route to cardio.atrial_flutter.v1 for acute rate/rhythm + AC decisions
    inputs: ecg_12_lead, alcohol_binge_or_chronic_use_quantified
    advance: Holiday Heart syndrome framed
  2. 2ENTRY
    Quantify alcohol exposure (binge vs chronic; AUDIT-C; last drink); document flutter timing relative to drinking; ECG morphology; symptom burden; CV/respiratory exam for hemodynamic stability + structural disease screen
    inputs: alcohol_binge_or_chronic_use_quantified, age, hr
    advance: Trigger + flutter morphology + initial stability documented
  3. 3CONTEXT
    Chronic alcohol use disorder vs isolated binge; LFTs + cirrhosis screen; existing structural heart disease (alcoholic cardiomyopathy, LA dilation); social context (housing, support, prior treatment); psychiatric comorbidity (depression, anxiety often comorbid with AUD)
    inputs: sex, ethanol_level, lft_panel
    advance: Context + AUD severity + structural disease status documented
  4. 4RED_FLAGS
    Hemodynamic instability (SBP <90 + flutter RVR → DCCV); severe alcohol withdrawal (CIWA >15) requiring benzodiazepine protocol — withdrawal can perpetuate flutter; ACS (post-binge stress + demand ischemia); structural heart disease (alcoholic cardiomyopathy → reroute to cardio.acute-hf.core.v1)
    inputs: sbp, ciwa_score_for_withdrawal_risk
    actions: acs_pathway
    advance: Stability + withdrawal severity + ACS screen complete
  5. 5INITIAL_WORKUP
    12-lead ECG + telemetry; TTE for structural assessment; CMP + Mg + Ca + LFTs + ethanol level + TSH + troponin + CBC; CIWA scoring if withdrawal suspected
    inputs: ecg_12_lead, echo_screening_for_structural_disease, electrolytes_mg_k_ca, tsh_screen, troponin, creatinine
    actions: panel.cardiac, panel.renal
    advance: Workup confirms diagnosis + rules out alternative cause
  6. 6BRANCHING_WORKUP
    TEE if cardioversion >48 h after symptom onset (LAA thrombus screen); 30-d ambulatory monitoring for recurrence assessment; sleep study for OSA (commonly comorbid with AF/flutter); polysomnography or home study per ACC/AHA 2024 if symptoms suggest OSA
    actions: afib_new_onset
    advance: Branching decisions documented
  7. 7RISK_STRATIFICATION
    CHA2DS2-VASc for AC indication (Holiday Heart isolated <24-48 h often score 0-1 in young patients → no chronic AC; recurrent or chronic alcohol-related ≥2 → AC indicated); HAS-BLED for AC bleed-risk (alcohol elevates bleed risk via varices, GIB, falls); AUDIT-C tier for SBIRT pathway intensity
    inputs: cha2ds2_vasc_factors, bleeding_history, audit_c_score
    actions: calc.cha2ds2vasc, calc.has_bled, calc.ckd_epi_2021
    advance: AC + AUD intervention tier documented
  8. 8TREATMENT
    Acute: electrolyte repletion (Mg ≥2.0, K ≥4.0); rate control with metoprolol IV 5 mg q5min × 3 then PO 25-50 mg BID (BB preferred over CCB if alcoholic CMP suspected); diltiazem alternative if BB contraindicated; DCCV if persistent >24-48 h or hemodynamically unstable (TEE first if >48 h to rule out LAA thrombus, OR therapeutic AC × 4 wk pre-CV); short-term AC × 4 wk post-CV per ACC/AHA 2024 (PMID 38753446); MANDATORY alcohol cessation counseling + SBIRT; benzodiazepine withdrawal protocol if CIWA >10
    inputs: electrolytes_mg_k_ca, creatinine
    advance: Rate/rhythm restored + AUD intervention initiated + AC plan documented
  9. 9DISPOSITION
    Outpatient management feasible if stable, NSR restored or rate-controlled, alcohol cessation engagement positive, no severe withdrawal risk; admit if persistent flutter requiring inpatient DCCV, severe withdrawal (CIWA >15), structural heart disease discovered, or social barriers preventing safe outpatient AUD treatment
    advance: Disposition documented
  10. 10MONITORING
    24-48 h telemetry for recurrence + AC initiation; CIWA q4-6h if withdrawal protocol active; daily Mg/K/Ca; LFT trend; daily AUDIT-C reinforcement + brief intervention; 4-wk post-CV AC adherence + bleed surveillance
    inputs: ecg_12_lead
    advance: Monitoring complete + recurrence-screen + AUD intervention progress documented
  11. 11FOLLOWUP
    AUDIT-C reassessment at 4 wk + 3 mo; alcohol abstinence (preferred per ALCOHOL-AF) or significant reduction goal; lifestyle bundle per LEGACY (sleep, weight, exercise); recurrence monitoring (Holter or smartwatch); EP referral if recurrent despite abstinence (consider CTI ablation if typical morphology); cardiology + addiction medicine + primary care coordination; long-term AC reassessment per CHA2DS2-VASc trajectory
    advance: AUD treatment engagement + lifestyle bundle + recurrence-monitoring + long-term AC plan documented