Abstract：
UNASSIGNED: The upright head roll test (UHRT) is a recently introduced diagnostic maneuver for lateral semicircular canal benign paroxysmal positional vertigo (LSC-BPPV).
UNASSIGNED: This study aimed to evaluate the reliability and validity of the UHRT.
UNASSIGNED: Two separate studies were conducted. Study 1 analyzed 827 results of videonystagmography (VNG) to assess UHRT reliability, and Study 2 analyzed 130 LSC-BPPV cases to evaluate UHRT validity.
UNASSIGNED: The inter-test reliability between UHRT and the supine head roll test (SHRT) showed substantial agreement (Cohen\'s kappa = 0.753) in direction-changing positional nystagmus (DCPN) and almost perfect agreement (Cohen\'s kappa = 0.836) in distinguishing the direction of DCPN. The validity assessment of UHRT showed high accuracy in diagnosing LSC-BPPV (80.0%) and in differentiating the variant types (74.6%). UHRT was highly accurate in diagnosing the canalolithiasis type in LSC-BPPV patients (Cohen\'s kappa = 0.835); however, it showed only moderate accuracy in diagnosing the cupulolithiasis type (Cohen\'s kappa = 0.415). The intensity of nystagmus in UHRT was relatively weaker than that in SHRT (P < 0.05).
UNASSIGNED: UHRT is a reliable test for diagnosing LSC-BPPV and distinguishing subtypes. However, UHRT has a limitation in discriminating the affected side owing to a weaker intensity of nystagmus than SHRT.
UNASSIGNED: This study aimed to evaluate the reliability and validity of the UHRT.
UNASSIGNED: Two separate studies were conducted. Study 1 analyzed 827 results of videonystagmography (VNG) to assess UHRT reliability, and Study 2 analyzed 130 LSC-BPPV cases to evaluate UHRT validity.
UNASSIGNED: The inter-test reliability between UHRT and the supine head roll test (SHRT) showed substantial agreement (Cohen\'s kappa = 0.753) in direction-changing positional nystagmus (DCPN) and almost perfect agreement (Cohen\'s kappa = 0.836) in distinguishing the direction of DCPN. The validity assessment of UHRT showed high accuracy in diagnosing LSC-BPPV (80.0%) and in differentiating the variant types (74.6%). UHRT was highly accurate in diagnosing the canalolithiasis type in LSC-BPPV patients (Cohen\'s kappa = 0.835); however, it showed only moderate accuracy in diagnosing the cupulolithiasis type (Cohen\'s kappa = 0.415). The intensity of nystagmus in UHRT was relatively weaker than that in SHRT (P < 0.05).
UNASSIGNED: UHRT is a reliable test for diagnosing LSC-BPPV and distinguishing subtypes. However, UHRT has a limitation in discriminating the affected side owing to a weaker intensity of nystagmus than SHRT.
摘要：
■直立头侧倾测试（UHRT）是最近推出的用于外侧半规管良性阵发性位置性眩晕（LSC-BPPV）的诊断操作。
■本研究旨在评估UHRT的信度和效度。
■进行了两项独立的研究。研究1分析了827个视频眼震描记术（VNG）的结果，以评估UHRT的可靠性，研究2分析了130例LSC-BPPV病例，以评估UHRT的有效性。
■UHRT和仰卧头滚动试验（SHRT）之间的试验间可靠性在方向变化位置眼球震颤（DCPN）方面表现出实质性的一致性（Cohen的kappa=0.753）和在区分DCPN方向方面几乎完美的一致性（Cohen的kappa=0.836）。UHRT的有效性评估在诊断LSC-BPPV（80.0％）和区分变异类型（74.6％）方面显示出很高的准确性。UHRT在诊断LSC-BPPV患者的泪管结石类型方面非常准确(Cohen\skappa=0.835)；然而，它在诊断铜石型方面仅显示中等准确性（Cohen'skappa=0.415）。UHRT的眼球震颤强度相对弱于SHRT（P<0.05）。
■UHRT是诊断LSC-BPPV和区分亚型的可靠测试。然而,由于眼球震颤的强度比SHRT弱，UHRT在区分患侧方面具有局限性。
■本研究旨在评估UHRT的信度和效度。
■进行了两项独立的研究。研究1分析了827个视频眼震描记术（VNG）的结果，以评估UHRT的可靠性，研究2分析了130例LSC-BPPV病例，以评估UHRT的有效性。
■UHRT和仰卧头滚动试验（SHRT）之间的试验间可靠性在方向变化位置眼球震颤（DCPN）方面表现出实质性的一致性（Cohen的kappa=0.753）和在区分DCPN方向方面几乎完美的一致性（Cohen的kappa=0.836）。UHRT的有效性评估在诊断LSC-BPPV（80.0％）和区分变异类型（74.6％）方面显示出很高的准确性。UHRT在诊断LSC-BPPV患者的泪管结石类型方面非常准确(Cohen\skappa=0.835)；然而，它在诊断铜石型方面仅显示中等准确性（Cohen'skappa=0.415）。UHRT的眼球震颤强度相对弱于SHRT（P<0.05）。
■UHRT是诊断LSC-BPPV和区分亚型的可靠测试。然而,由于眼球震颤的强度比SHRT弱，UHRT在区分患侧方面具有局限性。
