D'Agostino Roberto, Tarantino Vincenzo, Calevo Maria Grazia
Department of Otolaryngology, Istituto G. Gaslini Largo G. Gaslini 5, Genova, Italy.
Int J Pediatr Otorhinolaryngol. 2009 May;73(5):713-6. doi: 10.1016/j.ijporl.2009.01.011. Epub 2009 Feb 23.
To evaluate the relationship between the incidence of late post-tonsillectomy haemorrhage and its prevalence in a definite period of the day.
This retrospective study was carried out in the Ear Nose Throat (ENT) Unit of Giannina Gaslini Institute, Genoa, Italy on children operated for adenotonsillectomy (AT) or tonsillectomy (T) between January 2003 and February 2008. We considered in the study all the post-tonsillectomy late haemorrhages irrespective of their severity and for each case we evaluated whether they recurred in the day-time (B) (between 9.00 a.m. and 9.00 p.m.) or in the night-time (A) (between 9.00 p.m. and 9.00 a.m.). Finally we considered the number of haemorrhages per hour in the whole day.
Out of 3306 patients undergoing elective adenotonsillectomy or tonsillectomy, post-operative late haemorrhage occurred in 59 (1.78%). We noted that 42 episodes (71.2%) occurred in the night-time and 17 (28.8%) in the day-time. The average time from the operation was 8.4 days. A statistically significant difference (p=0.002) was found when comparing the frequencies of night-time and day-time haemorrhages. We did not observe any significant difference in the distribution per hour of the haemorrhages.
The incidence of post-tonsillectomy late haemorrhage in our study population was 1.78%. A statistically significant difference was found between night-time and day-time haemorrhages. Even though no significant distribution of haemorrhages per hour was observed, we underline that we recorded 32 (54.2%) events in 2 periods of the day: from 10 p.m. to 1 a.m. and from 6 to 9 a.m.
评估扁桃体切除术后迟发性出血的发生率与一天中特定时间段内其发生率之间的关系。
这项回顾性研究在意大利热那亚吉安尼娜·加斯利尼研究所的耳鼻喉科进行，研究对象为2003年1月至2008年2月期间接受腺样体扁桃体切除术（AT）或扁桃体切除术（T）的儿童。我们在研究中纳入了所有扁桃体切除术后迟发性出血病例，无论其严重程度如何，并针对每个病例评估出血是发生在白天（B）（上午9点至晚上9点）还是夜间（A）（晚上9点至上午9点）。最后，我们统计了一整天中每小时的出血次数。
在3306例接受择期腺样体扁桃体切除术或扁桃体切除术的患者中，术后迟发性出血发生在59例（1.78%）。我们注意到42例（71.2%）出血发生在夜间，17例（28.8%）发生在白天。手术平均时间为8.4天。比较夜间和白天出血频率时发现有统计学显著差异（p = 0.002）。我们未观察到每小时出血分布有任何显著差异。
我们研究人群中扁桃体切除术后迟发性出血的发生率为1.78%。夜间和白天出血之间存在统计学显著差异。尽管未观察到每小时出血的显著分布，但我们强调，我们记录到一天中的两个时间段内发生了32例（54.2%）出血事件：晚上10点至凌晨1点以及早上6点至9点。
