ObjectiveTo explore etiopathogenesis of slow transit constipation(STC). MethodsThe model of rat with “cathartic colon” was established, and the changes of colonic electromyography of the rat was examined. ResultsThe frequency and amplitude of slow wave in vivo of rats with cathartic colon was decreased markedly. Postmeal spike potential and duration was decreased, showing that gastrocolonic reflex of rats colon was decreased.ConclusionLong term abuse of stimulant laxuatives could damage enteric nervous system and accelerate the pathological changes of STC.
1概述便秘是很常见的症状，在美国便秘的发生率为2%，英国为10%，日本为4%，我国天津为4.4%［1］，女性发病概率是男性的3倍。多数便秘患者可经药物治疗治愈或改善症状，少数为难治性。少数便秘患者经手术治疗效果较好。便秘不是一种病，而是多种疾病的一个症状，不同的患者有不同的含义，包括： ①大便量少、硬，排出困难； ②排便困难合并一些特殊的症候群，如长期用力排便、直肠胀感、排便不完全或依靠手法帮助排便； ③7天内排便次数少于2～3次。临床上常诊断为慢性顽固性便秘或特发性便秘，但其确切含义很难描述。“慢性”意指病史至少2年，或年幼时就发病； “特发性”说明我们对便秘的原因及流行病学了解不全面； “顽固性”意指经一般药物及非手术治疗很难奏效，常需手术治疗［2］。
目的总结结肠冗长症合并结直肠癌的临床病理特征，并文献复习结肠冗长症与结直肠癌的关系。 方法回顾性分析兰州大学第一医院普外一科2011年1月至2012年12月期间收治的17例结肠冗长症合并结直肠癌患者的临床资料。 结果184例结直肠癌患者中合并结肠冗长症17例（9.24%），合并家族性息肉病恶变2例（1.09%），合并遗传性非息肉病性结直肠癌1例（0.54%），合并炎症性肠病1例（0.54%）。合并结肠冗长症的比例较高（P＜0.05）。其中术前经结肠气钡灌肠检查诊断为结肠冗长症5例，术中诊断为结肠冗长症12例。所有患者均行手术治疗，切除结肠13～80 cm，平均33.8 cm。术后发生肺部感染、切口液化1例，腹水1例，肠瘘1例，骶前感染1例。术后17例患者均获随访，随访时间6～12个月，中位数为10个月。随访期间，1例患者于术后1年出现卵巢转移。 结论结肠冗长症合并顽固性便秘可能是结直肠癌发病的高危因素。
ObjectiveTo investigate efficacy of total colectomy-ileorectal anastomosis (IRA) and subtotal colectomy-ileosigmoidal anastomosis (ISA) in treatment of patients with slow transit constipation (STC).MethodsThe clinical data of 45 patients with STC underwent operation from January 2008 to January 2015 were analyzed retrospectively. These patients were divided into an IRA group and ISA group according to the operation method, there were 23 cases in the IRA group and 22 cases in the ISA group. The operative time, intraoperative blood loss, postoperative hospitalization, use of antidiarrheal drugs, and complications rate in both groups were compared. All the patients were followed up at the 3th, 6th, 12th, and 24th month after the operation, the defecation frequency, Wexner continence score, Wexner anal incontinence score, gastrointestinal quality of life index score, abdominal pain frequency score, and abdominal distension frequency score in two groups were evaluated.ResultsThere were no significantly statistical differences between the two groups in the operation time, intraoperative blood loss, and postoperative complications rate (P>0.05). In the perioperative period, compared with the IRA group, the ISA group had a shorter postoperative hospitalization and a relatively lower proportion of antidiarrheal drugs, the differences were statistically significant between the two groups (P<0.05). On the postoperative 3th, 6th, and 12th month, the frequency of defecation in the IRA group was significantly higher than that in the ISA group (P<0.05). The Wexner continence score, Wexner anal incontinence score, gastrointestinal quality of life index score, abdominal pain frequency score, and abdominal distension frequency score had no statistical differences between the two groups (P>0.05).ConclusionsISA and IRA are safe and effective in treatment of STC, it might be selected according to patient’s conditions. On premise of strictly grasping indications, ISA has more obvious advantages.
ObjectiveTo evaluate the functional outcomes and quality of life in patients with surgery for slow transit constipation (STC).MethodsFrom March 2013 to July 2017, 29 patients undergoing total or subtotal colectomy for STC in our department were analyzed prospectively. Their preoperative and postoperative 1-year follow-up details were analyzed. Evacuation function of all patients was assessed by bowel movements, abdominal pain, bloating, straining, laxative, enema use and the Wexner constipation scales. Quality of life was evaluated by the Gastrointestinal Quality of Life Index (GIQLI) and the short-form (SF)-36 survey.ResultsA high number of patients (93.1%, 27/29) in STC stated that surgery received benefits to their health. Compared with that before operation, the number of bowel movements per week during a 1-year follow-up increased significantly (31.6±19.9 vs. 1.21±0.6, P<0.05). Significant trends toward improvement of bloating, straining, laxative and enema use were noted 1-year following surgery (P<0.05). The Wexner constipation scales scores during a 1-year follow-up decreased significantly (5.69±3.4 vs. 20.34±0.6, P<0.05). The GIQLI scores during a 1-year follow-up increased significantly (120.7±20.4 vs. 78.6±17.3, P<0.05). Moreover, results of SF-36 showed significant improvements in 7 spheres (role physical, role emotional, physical pain, vitality, mental health, social function and general health) during a 1-year follow-up compared with those before operation (P<0.05).ConclusionTotal or subtotal colectomy for STC did not only alleviate constipation symptoms dramatically, but also received significant improvements in the patients’ quality of life.