Bickel, Amitai Filtered signal-averaged P-wave duration during pneumoperitoneum in patients undergoing laparoscopic cholecystectomy: A reflection of pathophysiological cardiac changes. [electronic resource] - Surgical endoscopy Jan 2008 - 221-7 p. digital Publication Type: Controlled Clinical Trial; Journal Article ISSN: 1432-2218 Standard No.: 10.1007/s00464-007-9676-z doi Subjects--Topical Terms: AdultAgedAged, 80 and overCarbon Dioxide--pharmacologyCholecystectomy, Laparoscopic--adverse effectsConfidence IntervalsElectrocardiographyFemaleFollow-Up StudiesHeart Conduction System--physiopathologyHemodynamics--physiologyHumansMaleMiddle AgedMyocardial Ischemia--diagnosisPneumoperitoneum, Artificial--adverse effectsProbabilityProspective StudiesReference ValuesRisk AssessmentSensitivity and SpecificityStatistics, NonparametricTime FactorsTreatment Outcome