Subtopic Deep Dive
Peritoneal adhesions causing small bowel obstruction
Research Guide
What is Peritoneal adhesions causing small bowel obstruction?
Peritoneal adhesions causing small bowel obstruction (ASBO) refers to fibrous bands from prior surgery that mechanically obstruct the small intestine, leading to acute abdominal emergencies.
ASBO accounts for 60-90% of small bowel obstruction cases, primarily post-abdominal surgery. Systematic reviews quantify adhesion burden, with ten Broek et al. (2013) analyzing 34 studies (636 citations). Bologna Guidelines (ten Broek et al., 2018; 518 citations; Di Saverio et al., 2013; 320 citations) provide evidence-based management protocols.
Why It Matters
ASBO drives high morbidity, recurrence, and healthcare costs, with Sikirica et al. (2011; 177 citations) estimating US inpatient adhesiolysis burden at over 900,000 cases annually. Miller et al. (2000; 326 citations) report 18% recurrence post-surgery and 29% with conservative management. Behman et al. (2019; 125 citations) show operative intervention reduces recurrence risk from 27% to 16%, informing non-operative trial strategies. Guidelines like ten Broek et al. (2018) standardize diagnosis via CT and water-soluble contrast, reducing unnecessary laparotomies.
Key Research Challenges
Recurrence Prediction Models
Predicting ASBO recurrence remains difficult despite factors like prior surgery identified by Miller et al. (2000). Behman et al. (2019) highlight operative vs. conservative management impacts, but prospective models are lacking. Long-term data scarcity hinders risk stratification.
Optimal Timing of Intervention
Balancing conservative management duration against strangulation risk challenges protocols. Fevang et al. (2002; 161 citations) advocate early operation for complete obstruction, while Bologna Guidelines (ten Broek et al., 2018) recommend 72-hour trials with Gastrografin. Evidence gaps persist for high-risk patients.
Laparoscopic vs. Open Surgery
Laparoscopy shows faster recovery but higher conversion rates in ASBO per Wullstein and Gross (2003; 167 citations). ten Broek et al. (2018) note limited randomized data. Adhesion lysis complexity increases intraoperative risks.
Essential Papers
Burden of adhesions in abdominal and pelvic surgery: systematic review and met-analysis
Richard P. G. ten Broek, Yama Issa, Evert J. P. van Santbrink et al. · 2013 · BMJ · 636 citations
The review protocol was registered through PROSPERO (CRD42012003180).
Bologna guidelines for diagnosis and management of adhesive small bowel obstruction (ASBO): 2017 update of the evidence-based guidelines from the world society of emergency surgery ASBO working group
Richard P. G. ten Broek, Pepijn Krielen, Salomone Di Saverio et al. · 2018 · World Journal of Emergency Surgery · 518 citations
This guideline presents recommendations that can be used by surgeons who treat patients with ASBO. Scientific evidence for some aspects of ASBO management is scarce, in particular aspects relating ...
Natural history of patients with adhesive small bowel obstruction
George H. Miller, Jason Boman, Ian Shrier et al. · 2000 · British journal of surgery · 326 citations
Abstract Background Small bowel obstruction (SBO) is a major cause of morbidity and financial expenditure. The goals of this study were to determine factors predisposing to adhesive SBO, to note th...
Bologna guidelines for diagnosis and management of adhesive small bowel obstruction (ASBO): 2013 update of the evidence-based guidelines from the world society of emergency surgery ASBO working group
Salomone Di Saverio, Federico Coccolini, Marica Galati et al. · 2013 · World Journal of Emergency Surgery · 320 citations
The inpatient burden of abdominal and gynecological adhesiolysis in the US
Vanja Sikirica, Bela Bapat, Sean D. Candrilli et al. · 2011 · BMC Surgery · 177 citations
Abstract Background Adhesions are fibrous bands of scar tissue, often a result of surgery, that form between internal organs and tissues, joining them together abnormally. Postoperative adhesions f...
Laparoscopic compared with conventional treatment of acute adhesive small bowel obstruction
Ch. Wullstein, E. Gross · 2003 · British journal of surgery · 167 citations
Abstract Background Although laparoscopy may be associated with fewer intra-abdominal adhesions and quicker recovery of bowel function, it remains unclear whether patients with acute small bowel ob...
Early Operation or Conservative Management of Patients with Small Bowel Obstruction?
Bjørg‐Tilde Svanes Fevang, Dag Jensen, Knut Svanes et al. · 2002 · The European Journal of Surgery · 161 citations
Patients with partial obstruction with no sign of strangulation should initially be treated conservatively. When complete obstruction is present, it may settle on conservative management, but the u...
Reading Guide
Foundational Papers
Start with ten Broek et al. (2013; 636 citations) for adhesion epidemiology burden; Miller et al. (2000; 326 citations) for ASBO natural history and recurrence; Di Saverio et al. (2013; 320 citations) for initial Bologna management guidelines.
Recent Advances
ten Broek et al. (2018; 518 citations) updates evidence-based protocols; Behman et al. (2019; 125 citations) analyzes surgical recurrence risks.
Core Methods
CT enteroclysis for diagnosis; Gastrografin challenge for partial vs. complete obstruction (Biondo et al., 2003); laparoscopic adhesiolysis vs. laparotomy (Wullstein and Gross, 2003); conservative nasogastric decompression trials (Fevang et al., 2002).
How PapersFlow Helps You Research Peritoneal adhesions causing small bowel obstruction
Discover & Search
Research Agent uses searchPapers and citationGraph on 'adhesive small bowel obstruction' to map 250M+ OpenAlex papers, revealing ten Broek et al. (2013; 636 citations) as hub with 50+ forward citations. exaSearch uncovers Bologna Guidelines updates (ten Broek et al., 2018), while findSimilarPapers links Miller et al. (2000) natural history studies.
Analyze & Verify
Analysis Agent applies readPaperContent to extract Gastrografin trial protocols from Biondo et al. (2003), then verifyResponse with CoVe chain-of-verification flags contradictions across guidelines. runPythonAnalysis performs GRADE evidence grading on 10 Bologna papers, computing meta-analysis statistics; outputs verified recurrence rates with p-values.
Synthesize & Write
Synthesis Agent detects gaps like laparoscopic RCT scarcity via contradiction flagging across Wullstein (2003) and Behman (2019), generating exportMermaid flowcharts for management algorithms. Writing Agent uses latexEditText, latexSyncCitations for guideline summaries, and latexCompile to produce ASBO review manuscripts with embedded diagrams.
Use Cases
"Run meta-analysis on ASBO recurrence rates from operative vs conservative management"
Research Agent → searchPapers('ASBO recurrence') → Analysis Agent → runPythonAnalysis(pandas meta-analysis on Miller 2000, Behman 2019) → CSV export of pooled OR=0.65 (95% CI 0.52-0.81)
"Draft LaTeX review of Bologna Guidelines for ASBO with citation tree"
Synthesis Agent → gap detection on ten Broek 2018 → Writing Agent → latexEditText(guideline summary) → latexSyncCitations(10 papers) → latexCompile → PDF with Mermaid algorithm flowchart
"Find code for CT imaging analysis in ASBO diagnosis papers"
Research Agent → paperExtractUrls('ASBO CT enteroclysis') → Code Discovery → paperFindGithubRepo → githubRepoInspect → Python scripts for radiomics feature extraction from 5 linked repos
Automated Workflows
Deep Research workflow conducts systematic review: searchPapers(50+ ASBO papers) → citationGraph → GRADE grading → structured report on adhesion burden like ten Broek (2013). DeepScan applies 7-step analysis with CoVe checkpoints to verify Gastrografin efficacy across Biondo (2003) and guidelines. Theorizer generates hypotheses on volvulus mechanics from Miller (2000) natural history data.
Frequently Asked Questions
What defines peritoneal adhesions causing small bowel obstruction?
ASBO occurs when post-surgical fibrous bands mechanically block small bowel lumen, causing distension and ischemia risk (ten Broek et al., 2018).
What are key management methods for ASBO?
Bologna Guidelines recommend 72-hour conservative trial with nasogastric decompression and Gastrografin challenge; surgery if no resolution (Di Saverio et al., 2013; ten Broek et al., 2018).
What are pivotal papers on ASBO?
ten Broek et al. (2013; 636 citations) quantify adhesion burden; Miller et al. (2000; 326 citations) detail natural history; Behman et al. (2019; 125 citations) assess recurrence risks.
What open problems exist in ASBO research?
Recurrence prediction models, laparoscopic RCT evidence, and non-operative limits for high-risk patients lack robust prospective data (Behman et al., 2019; Wullstein and Gross, 2003).
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