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要約 目的:裂孔原性網膜剝離(RRD)の術後高眼圧に関与する因子を検討する。
対象と方法:2021年4月〜2022年2月にRRDに対して毛様体扁平部硝子体切除術(PPV)(32眼)もしくは網膜復位術(SB)(14眼)を施行され,術後半年以上の経過を追えた症例45例46眼(男性28例,女性17例,年齢17〜79歳,中央値54.5歳)を対象とした。後ろ向きに術後眼圧に関与する因子を検討した。
結果:術後経過中では術後1か月,3か月でSB群と比較し,有意にPPV群のほうが眼圧は高かったが(術後1か月p=0.038,術後3か月p=0.027,マン・ホイットニーのU検定),21mmHgを超えたのは術後1か月ではPPV群2眼,術後3か月では認めなかった。経過中の最高眼圧に関しては術後2週間以内であった症例は全体として34眼(73.9%),PPV群23眼(71.9%),SB群11眼(78.6%)であった。また,13眼(28.3%)で術後に30mmHg以上の高眼圧を認め(PPV群12眼,SB群1眼),PPVで有意に多かった(p=0.035,フィッシャーの直接確率検定)。さらにPPV群内でPPVのみ行った群(21眼)とSBを併施した群(11眼),また,シリコーンオイルを注入した群(6眼)とSF6を注入した群(25眼)に分けて検討したが有意な差はなかった。4眼は半年後も術後に発症した高眼圧症遷延のために,緑内障点眼を要した。
結論:RRD手術においてPPVを選択した場合,SBと比べて術後高眼圧をきたしやすい可能性がある。
Abstract Purpose:This study was performed to evaluate the factors of ocular hypertension for rhegmatogenous retinal detachment(RRD)after surgery.
Subjects and methods:We included 46 eyes of 45 consecutive patients(male, 28;female, 17;age 17〜79 years old, average 54.5 years old)who were followed up for at least six months after undergoing Pars plana vitrectomy(PPV)or scleral buckling(SB)between April 2021 and February 2022 at Tohoku University. We retrospectively investigated the factors influencing the postoperative intraocular pressure(IOP).
Results:During the postoperative course at 1 and 3 months after surgery, the PPV group had significantly higher IOP compared to the SB group(p=0.038 at 1 month, p=0.027 at 3 months, Mann-Whitney U test). However, at 1 month after surgery, only two cases in the PPV group had an IOP of 21 mmHg or higher, and no cases were observed at 3 months after surgery. In 34 cases(73.9%), the maximum postoperative IOP was observed within 2 weeks of the surgery:23 cases(71.9%)in the PPV group, and 11 cases(78.6%)in the SB group. In addition, 13 patients(28.3%)had an IOP of 30 mmHg or higher after the operation(12 patients in the PPV group, and one in the SB group)and was significantly higher in the PPV group(p=0.035, Fisher's exact test). Furthermore, an IOP of 30 mmHg or higher after the operation was no significant difference between the only PPV group(21 cases)and the PPV with SB group(11 cases). An IOP of 30 mmHg or higher after the operation was no significant difference between the group that injected silicone oil(6 cases)and a group that injected SF6(25 cases). Six months postoperatively, four patients had postoperative ocular hypertension, and required eye drops for glaucoma.
Conclusions:Postoperative ocular hypertension is more likely when PPV is performed for RRD surgery than when SB is used.
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