Moussa Mohamad, Papatsoris Athanasios G, Chakra Mohamad Abou, Fares Youssef, Dabboucy Baraa, Dellis Athanasios
Urology Department, Zahraa Hospital, University Medical Center, Lebanese University, Beirut, Lebanon.
2nd Department of Urology, School of Medicine, Sismanoglio Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Intractable Rare Dis Res. 2021 Feb;10(1):1-10. doi: 10.5582/irdr.2020.03077.
Spina bifida (SB) is a neurogenetic disorder with a complex etiology that involves genetic and environmental factors. SB can occur in two major forms of open SB or SB aperta and closed SB or SB occulta. Myelomeningocele (MMC), the most common neural tube defects (NTDs), occurs in approximately 1 in 1,000 births. Considering non-genetic factors, diminished folate status is the best-known factor influencing NTD risk. The methylenetetrahydrofolate reductase (MTHFR) gene has been implicated as a risk factor for NTDs. The primary disorder in the pathogenesis of MMC is failed neural tube closure in the embryonic spinal region. The clinical manifestation of SB depends on clinical type and severity. SB can be detected in the second trimester using ultrasound which will reveal specific cranial signs. The management of MMC traditionally involves surgery within 48 h of birth. Prenatal repair of MMC is recommended for fetuses who meet maternal and fetal Management of Myelomeningocele Study (MOMS) specified criteria. Urological manifestations of SB include urinary incontinence, urolithiasis, sexual dysfunction, renal dysfunction, and urinary tract infection. Renal failure is among the most severe complications of SB. The most important role of the urologist is the management of neurogenic bladder. Medical management with clean intermittent catheterization and anticholinergic treatment is generally considered the gold standard of therapy. However, when this therapy fails surgical reconstruction become the only remaining option. This review will summarize the pathogenesis, risk factors, genetic contribution, diagnostic test, and management of SB. Lastly, the urologic outcomes and therapies are reviewed.
脊柱裂(SB)是一种神经遗传性疾病,病因复杂,涉及遗传和环境因素。脊柱裂可分为两种主要形式:开放性脊柱裂(SB aperta)和闭合性脊柱裂(SB occulta)。脊髓脊膜膨出(MMC)是最常见的神经管缺陷(NTDs),每1000例出生中约有1例发生。考虑到非遗传因素,叶酸水平降低是影响神经管缺陷风险最广为人知的因素。亚甲基四氢叶酸还原酶(MTHFR)基因被认为是神经管缺陷的一个风险因素。脊髓脊膜膨出发病机制的主要障碍是胚胎脊柱区域神经管闭合失败。脊柱裂的临床表现取决于临床类型和严重程度。在孕中期使用超声可检测到脊柱裂,超声会显示特定的颅骨体征。脊髓脊膜膨出的传统治疗方法是在出生后48小时内进行手术。对于符合母胎脊髓脊膜膨出研究(MOMS)指定标准的胎儿,建议进行脊髓脊膜膨出的产前修复。脊柱裂的泌尿系统表现包括尿失禁、尿路结石、性功能障碍、肾功能障碍和尿路感染。肾衰竭是脊柱裂最严重的并发症之一。泌尿科医生最重要的职责是管理神经源性膀胱。采用清洁间歇性导尿和抗胆碱能治疗的药物治疗通常被认为是治疗的金标准。然而,当这种治疗失败时,手术重建就成为唯一剩下的选择。本综述将总结脊柱裂的发病机制、危险因素、遗传因素、诊断测试和治疗方法。最后,对泌尿系统的治疗结果和疗法进行综述。