a high volume？

Performing airway biopsies can help elucidate the histopathologic and microbiologic diagnosis of airway lesions such as hamartomas, endobronchial tuberculosis or aspergillosis, and granulomatous diseases. However, the blood and mucosal edema from the biopsy site can contribute to airway compromise and impaired oxygenation. Thus, it is crucial that the bronchoscopy be performed by an experienced bronchoscopist. Due to the complexity of bronchoscopic evaluation, there is controversy around performing flexible bronchoscopy as a surveillance/planning tool versus deferring the bronchoscopy to the time of definitive treatment [25]. In many clinical practices with a high volume of airway diseases, flexible bronchoscopy is often performed at the time of therapeutic rigid bronchoscopy for the aforementioned reasons.

进行气道活检有助于气道病变的组织病理学和微生物学诊断，如错构瘤、支气管内结核或曲霉病和肉芽肿性疾病。然而，活检部位的血液和粘膜水肿可损害气道/氧合。因此，由经验丰富的支气管镜医师进行检查至关重要。由于支气管镜检查评估的复杂性，是将柔性支气管镜检查作为监测/计划工具，还是将支气管镜检查推迟到确定性治疗时仍存争议[25]。由于上述原因，在许多广泛气道疾病的临床实践中，柔性支气管镜检查通常在治疗性硬性支气管镜检查时进行。

a high volume？啥意思？