Injection of freshly collected adipose tissue for the treatment complex cryptoglandular anal fistula: case report

Introduction: Perianal fistula is a common colorectal disease which is caused mainly by cryptoglandular disease. Although most cases are treated successfully by surgery, management of complex perianal fistulas (CPAF) remains a challenge with limited results in recurrence and sometimes associated with fecal incontinence. The CPAF treatment with autologous adipose-derived mesenchymal stem cells (ASCs) had become a research hotspot. The technique started to be used in the treatment of Crohn's disease (CD) fistulas, where the studies showed safe and goods result from the procedure. Cultured ASCs have been used but this approach requires the preceding collection of adipose tissue, time for isolation of ASCs and subsequent in vitro expansion, need for laboratory facilities, and expertise in cell culturing. These factors have been getting over by using the commercially available alternative, allogenic ASCs. Treatment with allogeneic ASCs has shown good results in patients with CD fistulas, however with the disadvantage of being expensive. Objective: To show that the injection with freshly collected adipose tissue is an alternative to treatment with autologous or allogenic ASCs with several advantages. Methods: In this case report, we show our first experience in the treatment of CPAF with the application of collected adipose tissue in a tertiary referral hospital from Belo Horizonte, Brazil. Results The patient had a good postoperative recuperation with a complete fistula healing after 8 months without adverse effects. Conclusion: Injection with freshly collected adipose tissue is a promising and apparently safe sphincter-sparing technique in the treatment of CPAF. (AU)

Polyp detection in the cecum and ascending colon by dye based chromoendoscopy - Is its routine use justified?

INTRODUCTION: colonoscopy is the best method for detecting polyps, with a reduction in colorectal cancer mortality of 29% and reaching 47% for distal tumors. However, it fails to demonstrate a significant reduction in proximal colon cancer mortality, and is the most common segment with interval neoplasm. The present study aimed to evaluate the impact on detection of polyps of a second sequential evaluation of cecum and ascending colon, with or without the use of indigo carmine chromoendoscopy. METHODS: prospective, non-randomized clinical trial. Patients were divided into two groups. The first (G1) underwent a routine colonoscopy, followed by a second endoscopy assessment of ascending colon and cecum. The second group (G2) underwent a routine colonoscopy, followed by a second assessment of the ascending colon and cecum with indigo carmine chromoendoscopy. RESULTS: In total, 203 patients were analyzed, 101 in the G1 and 102 in the G2. Newer polyps were identified in both groups after the second assessment with a significantly higher number of polyps detected in the patients in the G2 (p=0.0001). The number of patients who had at least one polyp in the two endoscopic assessments was significantly higher in the G2 (53 or 52% vs 27 or 26.7%, p=0.0002). In the second endoscopic assessment, the number of polyps found was also significantly higher in the G2 (50 or 76.9%) compared to the G1 (15 or 23.1%), p<0.0001. CONCLUSIONS: the second assessment with dye-based chromoendoscopy increases the detection of polyps in the ascending colon and cecum.

Comparative study using propensity score matching analysis in patients undergoing surgery for colorectal cancer with or without multimodal prehabilitation.

INTRODUCTION: The complication rate after major abdominal surgery is from 35 to 50%. The multimodal prehabilitation covers all the pre-operative problems to guarantee a faster recovery and reduce the rate of morbidity and mortality after a colorectal procedure. METHODS: Observational study, in patients with CRC who underwent surgical treatment between November 2020 and September 2022. The data of the patients were placed in 2 groups: prehabilitation group (PPH) and no prehabilitation group (NPPH). Demographic data, type of cancer, operative data, and postoperative data were collected. Characteristics between the groups were compared after a propensity score matching (PSM) analysis for the detection of differences. RESULTS: After the PSM analysis, 46 patients were in PPH, and 63 patients were in NPPH. There was no significant difference in postoperative complications (p = 0.192). The median of comprehensive complication index (CCI) was 0 (p = 0.552). Patients in the NPPH had more hospital readmissions (p = 0.273) and more emergency room visits (p = 0.092). Multivariate log binomial regression adjusted for complications showed that pre-habilitation reduces the risk of a pos-operative complication (OR: 0.659, 95%CI, 0.434-1.00, p = 0.019). CONCLUSIONS: The postoperative complication rate and LOS were similar between patients who receive operative multimodal prehabilitation for CRC surgery and those who did not. Prehabilitation was associated with reduced risk of postoperative complication after multivariate log binomial regression adjusted for complications. Patients who underwent prehabilitation had a slightly lower tendency for postoperative ER visits and hospital readmissions.

Polyp detection in the cecum and ascending colon by dye based chromoendoscopy - Is its routine use justified? / Uso de cromoscopia com corante para detecção de pólipos em ceco e cólon ascendente - Deve ser utilizado de rotina?

ABSTRACT Introduction: colonoscopy is the best method for detecting polyps, with a reduction in colorectal cancer mortality of 29% and reaching 47% for distal tumors. However, it fails to demonstrate a significant reduction in proximal colon cancer mortality, and is the most common segment with interval neoplasm. The present study aimed to evaluate the impact on detection of polyps of a second sequential evaluation of cecum and ascending colon, with or without the use of indigo carmine chromoendoscopy. Methods: prospective, non-randomized clinical trial. Patients were divided into two groups. The first (G1) underwent a routine colonoscopy, followed by a second endoscopy assessment of ascending colon and cecum. The second group (G2) underwent a routine colonoscopy, followed by a second assessment of the ascending colon and cecum with indigo carmine chromoendoscopy. Results: In total, 203 patients were analyzed, 101 in the G1 and 102 in the G2. Newer polyps were identified in both groups after the second assessment with a significantly higher number of polyps detected in the patients in the G2 (p=0.0001). The number of patients who had at least one polyp in the two endoscopic assessments was significantly higher in the G2 (53 or 52% vs 27 or 26.7%, p=0.0002). In the second endoscopic assessment, the number of polyps found was also significantly higher in the G2 (50 or 76.9%) compared to the G1 (15 or 23.1%), p<0.0001. Conclusions: the second assessment with dye-based chromoendoscopy increases the detection of polyps in the ascending colon and cecum.

RESUMO Introdução: a colonoscopia é o melhor método para detecção de pólipos, com redução da mortalidade por câncer colorretal de 29% e chegando até 47% para tumores distais. No entanto, existe falha em demonstrar redução significativa na mortalidade no cólon proximal sendo o segmento mais comum de neoplasia de intervalo. O presente estudo avaliou o impacto na detecção de pólipos em uma segunda avaliação sequencial do ceco e cólon ascendente, com ou sem o uso de cromoendoscopia com Indigo carmim. Métodos: estudo prospectivo, não randomizado. Os pacientes foram divididos em dois grupos. O primeiro (G1) foi submetido à colonoscopia de rotina, seguida de segunda avaliação endoscópica do cólon ascendente e ceco. O segundo grupo (G2) foi submetido à colonoscopia de rotina, seguida de segunda avaliação do cólon ascendente e ceco com cromoendoscopia com índigo carmim. Resultados: no total, foram analisados 203 pacientes, sendo 101 do G1 e 102 do G2. Novos pólipos foram identificados em ambos os grupos após a segunda avaliação com número significativamente maior de pólipos detectados nos pacientes do G2 (p=0,0001). O número de pacientes que apresentaram pelo menos um pólipo nas duas avaliações endoscópicas foi significativamente maior no G2 (53 ou 52% vs 27 ou 26,7%, p=0,0002). Na segunda avaliação endoscópica, o número de pólipos encontrados também foi significativamente maior no G2 (50 ou 76,9%) em relação ao G1 (15 ou 23,1%), p<0,000. Conclusão: a segunda avaliação com cromoendoscopia com índigo carmim aumenta a detecção de pólipos no cólon ascendente e no ceco.

Practical insights into stomas in inflammatory bowel disease: what every healthcare provider needs to know.

PURPOSE OF REVIEW: Despite advances in medical and surgical therapy in inflammatory bowel disease (IBD) management, intestinal stomas can be needed in a significant proportion of patients. The impact of stomas in patients' lives is significant, and the topic is still challenging for different specialties involved in IBD care. RECENT FINDINGS: Indications for intestinal ostomies in IBD can occur in elective (malnutrition, anemia, or previous steroids) or emergency (perforation, abdominal abscess, obstruction) settings. Different types of stomas can be used (loop, end, or double loop ostomies) depending on different clinical scenarios. Ileostomies are more frequently needed in IBD patients than colostomies, which may be associated with higher rates of recurrence in Crohn's disease. Only 16.6% of patients with diverting stomas for perianal Crohn's disease have successful transit restoration, and stomas become permanent. Prevention of complications is based on adequate preoperative demarcation and meticulous surgical technique. IBD stoma-related morbidity can occur in up to 70% of patients, are more common in Crohn's disease, and can be classified into early or late complications. SUMMARY: A multidisciplinary approach including gastroenterologists, surgeons, and stoma nurses is essential for IBD patients who will face the challenge of having a stoma during their disease course.