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要約 目的:アフリベルセプトとラニビズマブの硝子体内注射にかかる時間と,新薬であるラニビズマブバイオシミラー(BS)の硝子体内注射にかかる時間とを比較した。特に研修医と網膜疾患を専門とする医師(専門医)の間で比較し,眼科医の経験が処置時間に及ぼす影響を検討した。
対象と方法:鹿児島大学病院で硝子体内注射を受けた滲出型加齢黄斑変性または糖尿病黄斑浮腫の患者を対象とした後ろ向き研究。処置時間は,注射のためのドレープ設置から除去までの時間とし,マン・ホイットニーのU検定を用いて研修医と専門医の間で比較した。注射に関連した重篤な合併症については,カルテ記録を調査した。さらに,医師の経験年数が処置時間に及ぼす影響をスピアマンの順位相関係数を用いて検証した。
結果:研修医,専門医ともにすべての薬剤間で処置時間に有意な差はなかった。研修医はラニビズマブBS(p=0.025),ラニビズマブ(p=0.0013),アフリベルセプト(p=0.00091)注射時の処置時間が専門医より有意に長かった。処置時間と治療経験との間には統計学的に有意な負の相関があった(p<0.001,r=−0.56)。試験期間中,どの患者にも重篤な合併症はなかった。
結論:ラニビズマブBSの硝子体内注射の処置時間は従来の薬剤と変わらない。研修医は専門医よりも処置時間が長いが安全に硝子体内注射を行うことができる。
Abstract Purpose:This study aimed to compare the time required for the intravitreal injection of conventionally used aflibercept and ranibizumab with that of the new drug, ranibizumab biosimilar(BS), between trainees and specialists, and determine the impact of ophthalmologist experience on procedure time.
Materials and Methods:This single-center retrospective study included patients with exudative age-related macular degeneration or diabetic macular edema who received vitreous injections at Kagoshima University Hospital. The injection time encompassed the time from draping for the injection to drape removal and was compared between trainees and specialists using the Mann-Whitney U test. Serious injection-related complications were investigated using medical record reviews. In addition, the impact of the years of physician experience on injection time was tested using Spearman's rank correlation coefficient.
Results:The procedure times for trainees and specialist physicians were comparable across all drugs. Trainees exhibited significantly longer injection times for ranibizumab BS(p=0.025), ranibizumab(p=0.0013)and aflibercept(p=0.00091). A statistically significant and negative correlation between treatment time and experience was observed(p=0.001, r=−0.56). No serious complications were observed in any patients during the study period.
Conclusion:The procedure time for the intravitreal injection of ranibizumab BS did not differ from those for the conventional drugs. Trainees were able to administer intravitreal injections safely without complications.
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