The oncological and obstetric outcomes of cervical squamous cell carcinoma at stage IA1 managed with the loop electrosurgical excision procedure

ObjectiveTo evaluate the efficacy and superiority of loop electrosurgical excision procedure (LEEP) in managing stage IA1 cervical microinvasive squamous cell carcinoma (MISCC) without lymph-vascular space invasion (LVSI).Materials and methodsThe oncological and reproductive outcomes of a series of patients affected by stage IA1 MISCC without LVSI, initially treated by LEEP between February 2006 and December 2017, were retrospectively reviewed.ResultsUltimately, 109 patients were included. The mean age at diagnosis was 35.4 years old, and 36 patients were nulliparous. Multifocal lesions were identified in 15 patients (13.8%). The mean cone depth was 17.4 mm. Resection margins were positive/unevaluable and negative in 26 (23.9%) and 83 (76.1%) cases, respectively. Among cases undergoing salvage treatments, the residual disease rate for patients with positive/unevaluable margins was significantly higher than those with negative margins (P = 0.003). During the follow-up period of 43.0 ± 28.9 months, no relapse was identified. Fifteen of 20 patients (75.0%) conceived successfully, with a full-term live birth rate of 93.3%.ConclusionsFor stage IA1 MISCC without LVSI unexpectedly found in a loop excision, initial LEEP with clear margin is efficient and adequate. For cases with multifocal MISCC, or for those young patients who wish to become pregnant in the future, LEEP is the optimal choice.     

心脏自主神经节消融治疗睡眠呼吸暂停并发心房颤动的实验研究

目的研究心脏自主神经节（GP）消融对睡眠呼吸暂停（sA）并发心房颤动（房颤）的影响。方法成年杂种犬13只，采用随机数字法分为2组。第1组先制作SA模型再行GP消融（n=7），分别在基础状态、SA1h和GP消融后记录心电图、采集动脉血及测量心房、肺静脉和上腔静脉的不应期（ERP）和心房易颤窗口（WOV）；第2组先行GP消融再制作SA模型（n=6），分别在基础状态、GP消融后和SA1h后收集或测量以上参数。比较心率、血压、动脉血气、心率变异性（HRV）和各部位ERP、WOV在两组之间和消融前后的变化。结果第1组在SA过程中，心率、血压先上升后下降，SA1h末HRV低频／高频比值（LF／HF）减小[（0．6±0．2）对（0．8±0．2），P〈0．05]，各部位ERP显著缩短，2WOV显著增加（P〈0．05）。GP消融后LF／HF增大[（1．1±0．3）对（0．8±0．2），P〈0．05]，各部位ERP显著延长，EWOV显著减小（P〈0．05）。第2组在GP消融后，SA过程中心率、血压同样先上升后下降，各部位ERP不同程度缩短，但LF／HF和EWOV变化则不明显。无论先SA或者先消融GP，两组犬在SA1h末均出现低氧血症、高碳酸血症和酸中毒。结论自主神经活性的变化在SA并发的房颤中起着重要作用，消融心脏GP可以逆转或阻止SA导致的房颤。