purpose: to investigate the effects of surface ablation excimer surgery on higher-order aberrations and to assess the safety and efficacy of wavefront-guided surface ablation excimer surgery in patients with hyperopia and hyperopic astigmatism. methods: in this analytical & descriptive study, wavefront-guided surface ablation excimer surgery was performed in 58 eyes of 31 patients with hyperopi...

BACKGROUND Perioperative research is currently unco-ordinated in South Africa (SA), with no clear research agenda. OBJECTIVE To determine the top ten national research priorities for perioperative research in SA. METHODS A Delphi technique was used to establish consensus on the top ten research priorities. RESULTS The top ten research priorities were as follows: (i) establishment of a nat...

conclusions it seems that, in patients undergoing pncl, sa is as effective and safe as ga. patients who undergo pncl under sa require smaller amounts of analgesic dose and show hemodynamic stability during surgery and recovery time. also, sa technique provides decreased blood loss and shortened surgery as well as anesthesia times compared to ga. results map and heart rate show no significant di...

BACKGROUND AND OBJECTIVE To analyze non-work-related sickness absence (NWR-SA) due to inguinal hernia and the factors related to its duration, paying particular attention to the pre-surgical period of NWR-SA. MATERIAL AND METHODS Prospective cohort study was conducted on 1,003 workers with an episode of NWR-SA due to an inguinal hernia, belonging to the insured population of a mutual insuranc...

BACKGROUND The conversion of epidural labor analgesia (ELA) to epidural surgical anesthesia (ESA) for intrapartum cesarean section (CS) often fails, resulting in intraoperative pain. Spinal anesthesia (SA) can provide a denser sensory block than ESA. The purpose of this prospective, non-blinded, parallel-arm, randomized trial was to compare the rate of pain-free surgery between ESA and SA follo...

conclusions it seems that considering the clinical examination of patients before sa focusing on lumbar spinous process status, presence of lumbar deformity, calculation of bmi and radiological signs of lumbar vertebrae can be helpful in predicting sa difficulty. results hundred and one patients were enrolled. of these patients, 50 (49.5%) underwent sa by the first attempt of the first space, i...

BACKGROUND Hemodynamic stability and blood loss reduction are subjects to further consideration in patients undergoing percutaneous nephrolithotomy (PNCL). OBJECTIVES This study compared the preference of spinal anaesthesia (SA) or general anaesthesia (GA) in respect to mentioned concerns. PATIENTS AND METHODS In this randomized clinical trial, 59 patients who underwent PCNL divided into SA...

Sclerosing adenosis (SA) is a less common histopathological lesion of the breast that can coexist with proliferative lesions as well as malignancies. We aimed to analyze the clinicopathological characteristics of SA and to investigate the radiological features of SA.Patients who underwent breast surgery at our institute from 2007 to 2013 were retrospectively reviewed. A total of 815 breasts (72...

PURPOSE This study assessed the short-term and long-term efficacy of a presurgical stress management intervention at reducing mood disturbance and improving quality of life (QOL) in men undergoing radical prostatectomy (RP) for prostate cancer. PATIENTS AND METHODS One hundred fifty-nine men were randomly assigned to a two-session (plus two boosters) presurgical stress management intervention (...

The cornea is the main refractive surface of the eye. The prolate shape of the cornea plays a role in maintaining the optimum total spherical aberration (SA) of the eye by neutralizing the negative SA of the lens. As we age the lenticular SA shifts in the positive direction while the corneal SA remains the same, making the total ocular SA more positive. SA of the eye is directly proportional to...