Incidence and risk factor of outlet obstruction after construction of ileostomy

Complications associated with loop ileostomy: analysis of risk factors

BACKGROUND

Loop ileostomy is a common surgical procedure but is associated with complications such as outlet obstruction (OO), parastomal hernia (PH), and high-output stoma (HOS). This study aimed to identify risk factors for these complications, as well as their causal relationships.

METHODS

The study included 188 consecutive patients who underwent loop ileostomy between April 2016 and September 2021. Clinical factors and postoperative stoma-related complications (OO, HOS, and PH) were analyzed retrospectively. Stoma-related factors were evaluated using specific measurements from computed tomography (CT) scans. The incidence, clinical course, and risk factors for the stoma-related complications were investigated.

RESULTS

OO was diagnosed in 28 cases (15.7%), PH in 60 (32%), and HOS in 57 (31.8%). A small longitudinal stoma diameter at the rectus abdominis level on CT and a right-sided stoma were significantly associated with OO. Creation of an ileostomy for anastomotic leakage was independently associated with HOS. Higher body weight and a large longitudinal stoma diameter at the rectus abdominis level on CT were significantly associated with PH. There was a significant relationship between the occurrence of OO and HOS. However, the association between OO and PH was marginal.

CONCLUSION

This study identified key risk factors for OO, HOS, and PH as complications of loop ileostomy and their causal relationships. Our findings provide insights that may guide the prevention and management of complications related to loop ileostomy.

Disparate potential for readmission prevention exists among inpatient and outpatient procedures in a minimally invasive surgery practice

BACKGROUND

Administrators have focused on decreasing postoperative readmissions for cost reduction without fully understanding their preventability. This study describes the development and implementation of a surgeon-led readmission review process that assessed preventability.

METHODS

A gastrointestinal surgical group at a tertiary referral hospital developed and implemented a template to analyze inpatient and outpatient readmissions. Monthly stakeholder assessments reviewed and categorized readmissions as potentially preventable or not preventable. Continuous variables were examined by the Student's t test and reported as means and standard deviations. Categorical variables were examined by the Pearson χ2 statistic and Fisher's exact test.

RESULTS

There were 61 readmission events after 849 inpatient operations (7.2%) and 16 after 856 outpatient operations (1.9%), the latter of which were all classified as potentially preventable. Colorectal procedures represented 65.6% of readmissions despite being only 37.2% of all cases. The majority (67.2%) of readmission events were not preventable. Compared to the not-preventable group, the potentially preventable group experienced more dehydration (30.0% vs 9.8%, P = .045) and ileostomy creation (78.6% vs 33.3%, P = .017). The potential for outpatient management to prevent readmission was significantly higher in the potentially preventable group (40.0% vs 0.0%, P < .001), as was premature discharge prevention (35.0% vs 0.0%, P < .001).

CONCLUSION

The use of the standardized template developed for analyzing readmission events after inpatient and outpatient procedures identified a disparate potential for readmission prevention. This finding suggests that a singular focus on readmission reduction is misguided, with further work needed to evaluate and implement appropriate quality-based strategies.

High-output stoma is a risk factor for stoma outlet obstruction in defunctioning loop ileostomies after rectal cancer surgery

PURPOSE

Defunctioning loop ileostomy has been reported to reduce symptomatic anastomotic leakage after rectal cancer surgery; however, stoma outlet obstruction (SOO) is a serious postileostomy complication. We, therefore, explored novel risk factors for SOO in defunctioning loop ileostomy after rectal cancer surgery.

METHODS

This is a retrospective study that included 92 patients who underwent defunctioning loop ileostomy with rectal cancer surgery at our institution. Among them, 77 and 15 ileostomies were created at the right lower abdominal and umbilical sites, respectively. We defined the output volumeMAX as the maximum output volume the day before the onset of SOO or-for those without SOO-that was observed during hospitalization. Univariate and multivariate analyses were performed to evaluate risk factors for SOO.

RESULTS

SOO was observed in 24 cases, and the median onset was 6 days postoperatively. The stoma output volume in the SOO group was consistently higher than that in the non-SOO group. In the multivariate analysis, the rectus abdominis thickness (p < 0.01) and output volumeMAX (p < 0.01) were independent risk factors for SOO.

CONCLUSION

A high-output stoma may predict SOO in patients with defunctioning loop ileostomy for rectal cancer. Considering that SOO occurs even at umbilical sites with no rectus abdominis, a high-output stoma may trigger SOO primarily.

Risk Factors for Stoma Outlet Obstruction after Proctocolectomy for Ulcerative Colitis

Objectives

Stoma outlet obstruction (SOO) occurs with an incidence of approximately 40% after proctocolectomy for Ulcerative colitis (UC) with diverting ileostomy. This study aimed to identify the risk factors for SOO after proctocolectomy with diverting ileostomy for patients with UC.

Methods

We reviewed the data of 68 patients with UC who underwent proctocolectomy and diverting ileostomy between April 2006 and September 2021. These cases were analyzed on the basis of clinicopathological and anatomical factors. SOO was defined as small bowel obstruction displaying symptoms of intestinal obstruction, such as abdominal distention, abdominal pain, insertion of a tube through the stoma.

Results

The study included 38 (56%) men and 30 (44%) women with a median age of 42 years (range, 21-80). SOO categorized as at least Clavien-Dindo grade II occurred in 11 (16%) patients. Six patients required earlier stoma closure than scheduled. Compared with patients without SOO, patients with SOO had a significantly higher total steroid dose from the onset of UC to surgery (p = 0.02), a small amount of intraabdominal fat (p = 0.04), and a higher rate of laparoscopic surgery (p < 0.01).

Conclusions

A high preoperative steroid dose, a small amount of intraabdominal fat and laparoscopic surgery were identified as risk factors for SOO. Early detection and treatment for SOO are important for patients at risk.

Role of a Stoma Nurse in the Management of the Specific Stoma-Related Complications

Nursing care for patients with intestinal stomas is essential for ensuring their comfort, to prevent complications and promote their overall well-being. The quality of life of the patients with stomas can vary widely depending on their ability to adapt to the new physical and emotional state, but also to social changes that came with it. Health care professionals specializing in ostomy care can provide valuable guidance and support throughout the process. This study aims to identify and to summarize methods of nursing care for patients with an intestinal stoma and how these impact the perceived quality of life for those patients. Preoperative evaluation by an entero-stomal therapist and stoma site marking has been proved to reduce postoperative complications. Many of the peristomal skin complications can be prevented entirely by meticulous skin care. Follow-up is essential for the patient with a newly acquired intestinal ostomy to detect and provide treatment for ostomy-related complications that may occur. Regular monitoring and early intervention can help manage parastomal hernias effectively and improve the patient's quality of life.

Transatmospheric ileal stoma manometry can be applied for the early detection of stoma outlet obstruction

Background

Stoma outlet obstruction (SOO) is a common complication of diverting ileostomy and usually detected at the advanced stage when the intestine is obviously obstructed. The objective of this study is to explore the efficacy of transatmospheric ileal stoma manometry (TISM) in early detection of SOO before the manifestation of intestinal obstruction.

Methods

A single-center prospective study was performed in patients scheduled to undergo reversal ileostomy and laparoscopic anterior rectal resection and diverting ileostomy in Second Affiliated Hospital of Zhejiang University School of Medicine from 1st July 2022 to 31st December 2022. The stoma pressure was measured by TISM at different time points.

Results

The mean stoma pressure of the 30 patients before reversal ileostomy was 5.21 cmH2O which was considered as normal standard of stoma pressure, and ranged from 1.2 to 8.56 cmH2O. After excluding two patients with anastomotic leakage, a total of 38 patients who were subjected to laparoscopic anterior rectal resection and diverting ileostomy were further included in this study. The incidence of anastomotic leakage was 5% and that of SOO was 12.5%. The mean postoperative obstruction time was 5.2 (3-7) days and the mean time from elevated stoma pressure to diagnosed as SOO was 2.8 (2-4) days in the five patients who developed SOO. The pressure measured at the third stoma manometry time point (second day after return of gut function) (10.23 vs. 6.04 cmH2O, p<0.001) and the postoperative hospital stay (10 vs. 8.49 days, p=0.028) showed significantly difference between the SOO and non-SOO groups. The pressures measured at the first time point (before return of gut function) (4 vs. 4.49 cmH2O, p=0.585), the second time point (the day of return of gut function) (6.8 vs. 5.62 cmH2O, p=0.123), and the fourth time point (discharge day) (5.88 vs. 5.9 cmH2O, p=0.933) showed no significant difference in both groups.

Conclusion

TISM can be utilized for early detection of SOO and can be incorporated as a novel diagnostic method together with abdominal CT scan to realize the goal of ERAS.

A comparative study of stoma-related complications from diverting loop ileostomy or colostomy after colorectal surgery

PURPOSE

Even though minor, stoma-related complications significantly impact quality of life, they are often excluded from clinical analyses that compare short-term postoperative outcomes of loop ileostomy and loop colostomy. This study compares stoma-related complications between loop ileostomy and loop colostomy after rectal resection, including minor complications, and discusses the characteristics of diverting stoma types.

METHODS

A retrospective review was conducted in patients who underwent diverting stoma construction after rectal resection. Data on patient background and postoperative short-term outcomes, including stoma-related complications and morbidity after stoma closure, were collected and compared between loop ileostomy and loop colostomy groups. Morbidities of all severity grades were targeted for analysis.

RESULTS

A total of 47 patients (27 loop ileostomy, 20 loop colostomy) underwent diverting stoma construction following rectal resection. Overall stoma-related complications, incidence of skin irritation, high-output stoma, and outlet obstruction were significantly higher in the loop ileostomy group but high-output stoma and outlet obstruction were absent in the loop colostomy group. Regarding morbidity after stoma closure, operation times and surgical site infections were significantly higher in the loop colostomy group while anastomotic leakage after diverting stoma closure occurred (2 cases; 15%) in the loop colostomy group but not the loop ileostomy group.

CONCLUSION

Because stoma-related complications were significantly higher in the loop ileostomy group, and even these minor complications may impair QOL, early loop ileostomy closure is recommended. For loop colostomy, stoma-related morbidities are lower but post-closure leakage is a calculated risk.

Stoma-related complications and emergencies

Stoma creations are common procedures in surgical specialties. They can be created either as a temporary or a permanent measure. Despite advancements in surgical technique and stoma care, complications are common. Patients experiencing stoma-related complications often present to the emergency department. Emergency physicians are not expected to be stoma experts, yet they are often the first point of contact for patients experiencing stoma-related complications. Accordingly, emergency physicians should be familiar with the types of stomas and complications and emergencies associated with them so that they can appropriately address the problems related to stomas. This article will provide a review of emergencies and complications associated with ileostomies, colostomies, and urostomies.

Risk Factors for Stoma Outlet Obstruction: Preventing This Complication after Construction of Diverting Ileostomy during Laparoscopic Colorectal Surgery

Introduction

Bowel obstruction at the outlet of the stoma, also referred to as "stoma outlet obstruction" (SOO), has been noted to be more common after laparoscopic colorectal surgery with diverting ileostomy than after laparotomy. Thus, the aim of this study is to identify the risk factors for SOO and to evaluate the effectiveness of a modified ileostomy procedure for reducing its incidence.

Methods

The medical records of 63 patients who underwent laparoscopic colorectal surgery with diverting ileostomy between January 2014 and July 2021 were retrospectively reviewed. We analyzed the risk factors for SOO using computed tomography findings.

Results

In total, 34 patients underwent surgery before modification of the ileostomy procedure (LSa group), and 29 patients underwent surgery after modification (LSb group). In the LSa group, 6 patients have reportedly developed SOO (SOO group), whereas 28 patients did not (non-SOO group). No patients in the LSb group developed SOO. The thickness of the abdominal rectus muscle (ThM) in the SOO group and the non-SOO group was 13.4 mm and 9.6 mm, respectively (p = 0.005). The angle between the ileostomy and the abdominal wall (AIW) was 95.8° in the non-SOO group and 82.2° in the SOO group (p = 0.033). The AIW was 93.4° in the LSa group and 99.7° in the LSb group (p = 0.043).

Conclusions

As per our findings, a thick abdominal rectus muscle is predictive of SOO. Correction of the AIW (eliminating medial inclination) by modifying the operative technique has eliminated the occurrence of SOO in our patient population.

A technique for constructing diverting loop ileostomy to prevent outlet obstruction after rectal resection and total colectomy: a retrospective single-center study

PURPOSE

Preventing outlet obstruction associated with a diverting stoma is important. Previously, we constructed a diverting loop ileostomy with the proximal limb of the small intestine on the caudal side, namely the oral inferior (OI) method. However, to address the issue of twisting and stenosis of the small intestine, we recently constructed a diverting loop ileostomy with the proximal limb on the cranial side, namely the oral superior (OS) method. We compared the incidence of outlet obstruction between the two methods.

METHODS

The subjects of this retrospective study were 133 patients who underwent colorectal resection or total colectomy, with D2 or more lymph node dissection and diverting loop ileostomy construction, between April, 2001 and December, 2018, at our hospital. The OI method was performed in 54 patients and the OS method was performed in 79 patients.

RESULTS

In the OS group, a history of laparotomy, neoadjuvant therapy, clinical stage III, and the use of anti-adhesion materials were more common, whereas blood loss and the incidence of outlet obstruction were significantly lower. Multivariate analysis identified only OS placement as a significant factor for reducing the incidence of outlet obstruction.

CONCLUSION

When constructing a diverting loop ileostomy, placing the proximal limb on the cranial side is important.

Laparoscopic vs open restorative proctectomy after total abdominal colectomy for ulcerative colitis or familial adenomatous polyposis

PURPOSE

Randomized controlled trials (RCTs) demonstrated that a laparoscopic approach provides short-term benefits, such as reduced blood loss and a shorter hospital stay, in patients who undergo rectal surgery. On the other hand, a few RCTs investigating proctocolectomy with ileal pouch-anal anastomosis (IPAA) for ulcerative colitis (UC) or familial adenomatous polyposis (FAP) suggested limited advantages of laparoscopic surgery over open surgery. A substantial proportion of patients with UC or FAP may undergo staged operations with IPAA, but no study has compared the two approaches for proctectomy with IPAA after total abdominal colectomy.

METHODS

We examined 61 consecutive patients with UC or FAP who underwent proctectomy with IPAA after colectomy in our hospital. Patients were divided into the Lap group (n = 37) or the Op group (n = 24) according to surgical approach. Patient background and outcomes, such as operative time, blood loss, first bowel movement, postoperative complications, and pouchitis, were compared between these groups.

RESULTS

One patient required conversion to open surgery in the Lap group. The median volume of blood loss was 90 mL in the Lap group and 580 mL in the Op group (p < 0.0001). The Lap group showed a shorter time to first bowel movement than the Op group (median: 1 vs 2 days, p = 0.0003). The operative time, frequencies of postoperative complications, and accumulation rate of pouchitis were similar between the two groups.

CONCLUSIONS

Laparoscopic surgery was beneficial for patients undergoing restorative proctectomy in terms of blood loss and bowel recovery without increasing the operative time or rate of complications.

[Loop colostomy as a risk factor of postoperative ileus in elective colorectal cancer surgery]

OBJECTIVE

To identify risk factors of postoperative ileus (POI) in elective colorectal cancer (CRC) surgery.

MATERIAL AND METHODS

A non-randomized retrospective study included 220 patients who underwent elective surgery for colorectal tumors. The indication for surgery was CRC stage 0-IV in 213 (96.8%) cases, villous adenoma in 7 cases (3.2%). Risk factors of POI defined in univariate analysis were included into multivariate analysis. Logistic regression was used in this case.

RESULTS

Risk factors of POI were male sex (p=0.04), multifocal CRC (p=0.03), intraoperative transfusion (p=0.005), postoperative transfusion (p=0.035), left-sided hemicolectomy (p=0.01), colostomy (p=0.02), loop transversostomy (p=0.003), loop colostomy (p=0.02). According to logistic regression, independent risk factors of POI were male sex (p=0.015), left-sided hemicolectomy (p=0.004), intraoperative transfusion p=0.002), loop transversostomy (p=0.019).

CONCLUSION

Independent risk factors of POI in elective colorectal cancer surgery were male sex, left-sided hemicolectomy, intraoperative transfusion and loop transversostomy.

Risk of Outlet Obstruction Associated With Defunctioning Loop Ileostomy in Rectal Cancer Surgery

BACKGROUND

The outlet obstruction (OO) rate is 5.4-18.4% after defunctioning ileostomy (DI) following rectal cancer resection to reduce the incidence and severity of anastomotic leakage; OO affects a patient's quality of life and prolongs hospitalization.

PATIENTS AND METHODS

A retrospective analysis was performed of patients who underwent anterior rectal resection and DI for rectal cancer.

RESULTS

Among 100 patients undergoing anterior rectal resection with DI for rectal cancer, 28 (28%) developed OO. Anastomotic leakage and a rectus abdominis muscle thickness ≥10 mm on preoperative computed tomography were significantly associated with the risk of OO in univariate analysis. Multivariate analysis also demonstrated that anastomotic leakage (odds ratio=4.320, 95% confidence interval=1.280-14.60, p=0.019) and rectus abdominis muscle thickness ≥10 mm (odds ratio=3.710, 95% confidence intervaI=1.280-10.70, p=0.016) were significantly risk factors for OO.

CONCLUSION

When OO is observed, an anastomotic leakage should be suspected, especially if there is a high rectus abdominis muscle thickness.

Long Distance Between the Superior Mesenteric Artery Root and Bottom of the External Anal Sphincter Is a Risk Factor for Stoma Outlet Obstruction After Total Proctocolectomy and Ileal‐Pouch Anal Anastomosis for Ulcerative Colitis

Background

Stoma outlet obstruction (SOO) is much more common after total proctocolectomy (TPC) and ileal‐pouch anal anastomosis (IPAA) for ulcerative colitis (UC) compared to after rectal surgery for cancer. Few prior reports have evaluated anatomical risk factors for SOO. In this study we aimed to clarify the risk factors for SOO after IPAA, focusing on the anatomical perspective.

Methods

This study included 68 UC patients who underwent IPAA with diverting ileostomy. These cases were analyzed based on clinicopathological factors and computed tomography (CT)‐based anatomical factors.

Results

SOO was identified in 18 patients (26.5%). We compared this SOO group with the non‐SOO group. The two groups significantly differed in sex distribution, and patients in the SOO group tended to have a longer postoperative hospital stay. Regarding surgery‐related factors, patients who underwent two‐stage surgery and experienced high‐output syndrome tended to develop SOO. Analysis of anatomical risk factors revealed that SOO was more common in patients with a longer distance between the root of their superior mesenteric artery and the bottom of the external anal sphincter (rSMA‐bEAS). This tendency remained significant even with adjustment for patient height. In multivariate analyses, adjusted rSMA‐bEAS (>191.0 mm/m) and male sex were independent risk factors associated with SOO.

Conclusion

A long rSMA‐bEAS distance suggests that the mesentery is likely to be under tension. In such cases, surgeons should endeavor to avoid tension in the mesentery as much as possible.

Risk Factors for Outlet Obstruction in Patients with Diverting Ileostomy Following Rectal Surgery

Objectives:

Anastomotic leakage is one of the most severe complications of rectal cancer surgery. A diverting ileostomy was constructed for the purpose of reducing anastomotic failure risk. Outlet obstruction (OO) is one of the complications of diverting stoma that results in a lack of fecal discharge from the stoma. Detailed etiologies and preventive measures for outlet obstruction have not yet been identified.

Methods:

We studied 125 patients who underwent rectal resection, anastomosis, and elective ileostomy. We evaluated the incidence of outlet obstruction and looked for any relationship between perioperative factors and outlet obstruction.

Results:

Outlet obstruction was detected in 20 cases (16.0%). Outlet obstruction occurred 9 days after surgery in most cases. Inserting a decompressing tube improved obstructive symptoms in 4 days. Patients were divided into two cohorts according to the occurrence of outlet obstruction. Postoperative hospital stay was longer in the outlet obstruction group (19 vs. 15 days; p = 0.0003). A multivariate analysis identified that younger patients, a postoperative thicker rectus abdominis muscle at the stoma passage and high output syndrome were independent risk factors for outlet obstruction.

Conclusions:

Younger patients, a postoperative thicker rectus abdominis muscle at stoma passage and high output syndrome were independent risk factors for outlet obstruction.

Risk factors for outlet obstruction after laparoscopic surgery and diverting ileostomy for rectal cancer

PURPOSE

Outlet obstruction is defined as bowel obstruction at the stoma opening. The aim of this study was to evaluate the risk factors for outlet obstruction in patients with rectal cancer who underwent laparoscopic surgery and diverting ileostomy.

METHODS

Among consecutive patients who underwent laparoscopic curative resection for primary rectal cancer between 2013 and 2015, 261 patients with diverting ileostomy were included in the analysis. The thickness of the abdominal wall, including the thickness of the rectus abdominis muscle, was measured using preoperative computed tomography. The clinicopathological factors were compared between the patients with and without outlet obstruction.

RESULTS

Fourteen (5.4%) patients were diagnosed with outlet obstruction, but reoperation was not required. The rectus abdominis muscle was significantly thicker in male patients with outlet obstruction compared to those without outlet obstruction, but not in females. In a multivariate analysis, a rectus abdominis muscle thickness of 10 mm or more was determined to be an independent risk factor for outlet obstruction (odds ratio, 7.0482; p = 0.0061).

CONCLUSIONS

The thickness of the rectus abdominis muscle may be used to predict the occurrence of outlet obstruction in male patients with rectal cancer who undergo laparoscopic surgery and diverting ileostomy.