title: Blood pressure change during phacoemulsification and femtosecond laser-assisted cataract surgery.
abstract: OBJECTIVE
  To evaluate blood pressure (BP) changes during phacoemulsification (PC) and femtosecond laser (FSL)-assisted cataract surgery.
  
  
  METHODS
  A retrospective chart review was performed for all patients who received traditional phacoemulsification surgery (PC group) and FSL-assisted cataract surgery (FS group) from July 2013 to December 2014. Totally 206 eyes from 133 patients receiving the two types of procedures were included. Patient characteristics (age, gender, and hypertension history), pre- and post-operative BPs were collected.
  
  
  RESULTS
  The pro-operative systolic and diastolic BPs (mm Hg) were 124.89±20.48vs126.98±16.85, and 71.88±9.81vs73.56±10.03, in PC and FS groups, respectively. While the post-operative systolic and diastolic BPs (mm Hg) were 130.13±22.59vs134.77±17.52, and 73.41±11.62vs78.89±12.2, in PC and FS groups, respectively. Paired-samplet-tests showed obvious systolic and diastolic BP elevations in FS group after surgery (P=0.001 and 0.007) and no reliability in PC group (P=0.094 and 0.359). A linear regression model revealed systolic and diastolic BP elevations, which were related to longer surgical times for FS group (P=0.008 and 0.021). Age, gender, and hypertension history were not correlated with blood pressure elevation in either group.
  
  
  CONCLUSIONS
  BP increases but at a limited level after FSL-assisted cataract surgery compared to traditional phacoemulsification.
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Zhong-Li, Taiwan, China; Department of Optometry, Central Taiwan University of Science and Technology, Taiwan, China; Department of Ophthalmology, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350003, Fujian Province, China.
authors.forename: Hung-Yuan
authors.initials: HY
authors.lastname: Lin
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China.
authors.forename: Ching-Jen
authors.initials: CJ
authors.lastname: Tung
authors.affiliation: Department of Ophthalmology, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350003, Fujian Province, China.
authors.forename: Guo-Xing
authors.initials: GX
authors.lastname: Xu
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China.
authors.forename: Chun-Chi
authors.initials: CC
authors.lastname: Wang
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China; Department of Ophthalmology, Ningbo First Hospital, Ningbo 315000, Zhejiang Province, China.
authors.forename: Hsin-Yang
authors.initials: HY
authors.lastname: Chen
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China.
authors.forename: Ya-Jung
authors.initials: YJ
authors.lastname: Chuang
authors.affiliation: Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China.
authors.forename: Wen-Fu
authors.initials: WF
authors.lastname: Li
authors.affiliation: Department of Ophthalmology, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350003, Fujian Province, China; Department of Ophthalmology, Universal Eye Center, Taipei, Taiwan, China.
authors.forename: Pi-Jung
authors.initials: PJ
authors.lastname: Lin
keywords: blood pressure; cataract surgery; femtosecond-assisted cataract surgery; phacoemulsification