最後更新:2026年10月1日
持續勃起症 (priapism) 為陰莖在非性刺激下持續勃起超過 4 小時的病理狀態。分為缺血型(低流量,緊急)與非缺血型(高流量,較不緊急)。犬貓可因藥物(acepromazine)、脊髓損傷、血液疾病或特發性引起。缺血型需緊急處理避免永久性陰莖損傷。
貓持續勃起罕見。可與 urethral obstruction、脊髓損傷或藥物相關。
犬持續勃起最常見原因為 acepromazine 副作用(α-adrenergic 阻斷)。其他原因包括脊髓損傷、血栓、特發性。通常為缺血型(低流量)。
可點的項目會開啟該疾病頁。要依症狀與檢驗排出完整清單,請用鑑別診斷工具。
建議:LRS 維持量 + 矯正脫水(pyometra/dystocia 常有脫水)
類型:LRS
監測頻率:每日(術後)
[1]From the PnTx2-6 Toxin to the PnPP-19 Engineered Peptide: Therapeutic Potential in Erectile Dysfunction, Nociception, and Glaucoma.
[2]Clinical features of rabies patients with abnormal sexual behaviors as the presenting manifestations: a case report and literature review.
[3]Effects of antifibrotic agent Nintedanib on experimentally generated priapism model in rats.
[4]The role of angiotensin receptor blocker (losartan) on decreasing fibrotic process of corpora cavernosa in priapism model of wistar rats.
[5]Effects of ketamine on penile tissues in an experimental priapism model in rats.
穩定但需注意惡化徵兆,建議安排近期門診 (stable but monitor for deterioration, schedule near-term visit)
缺血型 priapism <24 小時處理預後佳。>48 小時組織壞死風險極高。非缺血型預後較佳。Acepromazine 引起者多數可成功處理。嚴重壞死需截斷但可保留排尿功能。
Diagnostic Approach for Priapism
Breeding history, cycle timing, vulvar discharge, mammary gland assessment
CBC, serum chemistry, progesterone level; vaginal cytology
Abdominal ultrasound for uterine and ovarian evaluation; radiography for fetal count/viability