title: Minute ventilation-sensor driven pacemaker related difficulty in weaning from mechanical ventilation: a case report.
abstract: BACKGROUND
  Minute ventilation responsive rate adaptive pacemaker improves exercise performance in the patients with chronotropic insufficiency. The usual complications of these pacemakers are related to pacemaker implantation, rather than to the rate adaptive function.
  
  
  METHODS
  We report a patient with mitral stenosis and atrial fibrillation with a VVIR pacemaker, who was mechanically ventilated for respiratory failure. The patient could not be weaned because of the minute ventilation driven increased heart rates. Subsequently the rate adaptive function was switched off and the patient was successfully weaned from ventilator.
  
  
  CONCLUSIONS
  Difficulty in weaning from mechanical ventilation can be a serious complication in patients with organic heart disease, who depend on diastolic filling time for adequate cardiac output.
authors.affiliation: Division of Cardiology, University of Missouri-Columbia, USA.
authors.forename: A K
authors.initials: AK
authors.lastname: Nayak
authors.forename: K
authors.initials: K
authors.lastname: Aggarwal
authors.forename: G C
authors.initials: GC
authors.lastname: Flaker
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000628:therapy*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008946:Mitral Valve Stenosis / Q000628:therapy*; D010138:Pacemaker, Artificial; D015300:Ventilator Weaning