Amsterdam 2013 Programme Satellite Meetings Registration Exhibition Virtual Exhibition Hotels Visa Letter Invitation
Search Abstracts by author or title
(results will display both Free Papers & Poster)

Blood pressure changes for patients who underwent LASIK with a femtosecond laser (iLASIK)

Poster Details

First Author: H.Lin TAIWAN

Co Author(s):    P. Hsu   Y. Chou   C. Pu   Y. Fang     

Abstract Details



Purpose:

This study is to evaluate the blood pressure (BP) changes for patients underwent LASIK surgery with flap created with the femtosecond laser under topical anesthesia (i-LASIK), and to determine the factors associated with BP changes for these patients.

Setting:

All operations were performed by the same surgeon (Dr HY Lin) in one clinic (Universal eye center).

Methods:

There were 209 patients received i-Lasik surgery between Jan, 2012 and Oct, 2012. All operations were performed by the same surgeon using the same 120K Hz IntraLase femtosecond laser (Abbott Medical Optics, Inc.) and EC-5000 excimer laser (Nidec). The pre-operative systolic blood pressures (SBP) and diastolic blood pressures (DBP) were measured 3 times using the same barometer when patient visited the clinic on the day of operation. The post-operative BPs were measured after patientÂ’s surgery has completed for at least 5 minutes. Patients was categorized by their pre-operative SBP as normal-tensive (BP<120 mmHg), pre-hypertensive (120<=BP<140mmHg) and hypertensive subjects (BP>=140 mmHg).

Results:

There were 110 female and 90 male subjects. Their mean age was 30.2 + 6.4 (19.8~49.1) years old. There were 126 patients (63%) with normal tensive status, 57 (28.5%) with pre-hypertensive status, and 17(8.5%) with hypertensive status in pre-operative period. There was 64.7% of pre-op hypertensive patients remain in hypertensive status, and 5.9% return to normal after i-Lasik surgery. Their SBP changes were +5.9, -0.6 and -8.6 mmHg respectively; and their DBP changes were +7.0, +5.2 and -3.4mmHg respectively. The SBP change was significantly associated with pre-operative SBP status (p<0.0001) and IOP (p=0.008), but not with patientsÂ’ age (p=0.562), gender (p=0.243), their refractive status (p=0.786) and CCT (p=0.599).

Conclusions:

This study revealed that 12% of patient without hypertension developed hypertensive status (JNC 7 classification) pre-operatively and increased to 20% post-operatively. The SBP changes were significantly associated with their SBP status before operation. For patient safety, hemodynamic monitoring should be implemented into routine LASIK surgery.

Financial Disclosure:

NONE

Back to previous