Lyme Disease: Drug Therapy

Therapy goals

  • Elimination of the pathogens
  • Avoidance of complications

Therapy recommendations

  • General antibiosis (antibiotic therapy) after tick bite is not recommended. The exception is multiple bites in a high-risk area.
  • Antibiotic therapy (doxycycline, penicillin G, ceftriaxone or cefotaxime as monotherapy):
    • In erythema migrans (wandering redness) immediately without antibody detection, lymphocytoma: doxycycline; in pregnant women with amoxicillin or cefuroxime axetil.
    • For complications (neuroborreliosis (infestation of brain and nerve tracts), carditis (inflammation of the heart); arthritis (inflammation of joints); acrodermatitis chronica atrophicans/inflammatory skin disease of the ends of the body with skin atrophy (thinning of the skin) and livider (bluish) discoloration; predilection sites: Dorsum of hands and feet, elbows, and knees: differential diagnoses: chronic venous insufficiency, arterial occlusive disease, senile atrophy of the skin), antibiotic therapy (doxycycline, penicillin G, ceftriaxone, or cefotaxime as monotherapy) of up to 21 days is required
  • Notes on asymptomatic infection (“without apparent symptoms”):
    • Complaint-free patients are not in need of therapy regardless of the serological findings!
    • Exception: pregnant women and persons with increasing IgM antibody concentrations.
    • After successful therapy, elevated antibodies (AK) may still be detectable for months to years (“serum scar”). Likewise, IgM persistence (persistence) is possible over one to three years with successful therapy.
    • In case of strong IgM increase and persistent and recurrent symptoms, a renewed antibiotic therapy is indicated.
  • A vaccine for Europe must have three human pathogenic species: B. afzelii, B. garinii, and B. burgdorferi sensu stricto. A trivalent vaccine (3 OspA species) for Europe is in the trial phase.
  • See also under “Further therapy”.

Notice: Wg. Post-Lyme syndrome: patients did not fare better after 14 weeks of antibiotic treatment than after a 12-week cycle of therapy.

Notes on Lyme carditis

  • Higher-grade AV block requires passive pacing in approximately 60% of these patients.
  • High-grade infrahissary block usually recovers within one week, and first-grade conduction abnormalities within six weeks.
  • Permanent pacemaker implantation is an absolute exception.