Department of Clinical Neurological Sciences, The University of Western Ontario, London Health Sciences Centre, London, Ontario, Canada.
Epilepsia. 2010 Jun;51(6):1018-23. doi: 10.1111/j.1528-1167.2009.02427.x. Epub 2010 Jan 13.
The aim of this study was to assess the incidence of mild (<or=90 degrees) versus severe (>90 degrees from vertical) visual field defects (VFDs) in patients after anterior temporal lobectomy (ATL), and their postoperative improvement over time.
The angles of postoperative VFDs of 75 patients who underwent ATL were recorded at various time points (1, 2, 6, 12, 18, 24, and 36+ months).
Of all 23 patients who came in for their <1 month postoperative appointment, 65% of patients had surgically induced VFDs <90 degrees , whereas 35% had VFDs >90 degrees postoperatively. Patients in the latter group were reported for suspension of their driver's license. However, 38% experienced improvement of their VFD to <90 degrees such that their driver's license could be reinstated. Of patients with any VFD, 18-30% improved on average by a magnitude of 38 degrees within the first year postoperatively.
Although 35% of the VFDs that occur following temporal lobe surgery are severe, approximately 38% of these patients (especially those with starting postoperative VFDs closer to the 90 degrees angle) experience some improvement shortly after surgery. This may increase their chances of having their driver's license reinstated.
本研究旨在评估前颞叶切除术（ATL）后患者轻度（≤90 度）与重度（＞90 度垂直）视野缺损（VFD）的发生率，以及它们随时间的术后改善情况。
记录了 75 例接受 ATL 手术的患者在不同时间点（1、2、6、12、18、24 和 36+个月）的术后 VFD 角度。
在所有接受<1 个月术后随访的 23 例患者中，65%的患者术后出现<90 度的手术诱导 VFD，而 35%的患者术后出现>90 度的 VFD。后者组的患者被报告吊销驾驶执照。然而，38%的患者 VFD 有所改善，降至<90 度，从而可以恢复驾驶执照。在有任何 VFD 的患者中，平均有 18-30%的患者在术后第一年改善了 38 度。
尽管颞叶手术后发生的 VFD 有 35%是严重的，但大约 38%的这些患者（尤其是那些术后初始 VFD 接近 90 度的患者）在手术后不久会有一些改善。这可能会增加他们恢复驾驶执照的机会。
