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Cancers May 2024High-resolution anoscopy (HRA) plays a central role in the detection and treatment of precursors of anal squamous cell carcinoma (ASCC). Artificial intelligence (AI)...
Deep Learning and High-Resolution Anoscopy: Development of an Interoperable Algorithm for the Detection and Differentiation of Anal Squamous Cell Carcinoma Precursors-A Multicentric Study.
High-resolution anoscopy (HRA) plays a central role in the detection and treatment of precursors of anal squamous cell carcinoma (ASCC). Artificial intelligence (AI) algorithms have shown high levels of efficiency in detecting and differentiating HSIL from low-grade squamous intraepithelial lesions (LSIL) in HRA images. Our aim was to develop a deep learning system for the automatic detection and differentiation of HSIL versus LSIL using HRA images from both conventional and digital proctoscopes. A convolutional neural network (CNN) was developed based on 151 HRA exams performed at two volume centers using conventional and digital HRA systems. A total of 57,822 images were included, 28,874 images containing HSIL and 28,948 LSIL. Partial subanalyses were performed to evaluate the performance of the CNN in the subset of images acetic acid and lugol iodine staining and after treatment of the anal canal. The overall accuracy of the CNN in distinguishing HSIL from LSIL during the testing stage was 94.6%. The algorithm had an overall sensitivity and specificity of 93.6% and 95.7%, respectively (AUC 0.97). For staining with acetic acid, HSIL was differentiated from LSIL with an overall accuracy of 96.4%, while for lugol and after therapeutic manipulation, these values were 96.6% and 99.3%, respectively. The introduction of AI algorithms to HRA may enhance the early diagnosis of ASCC precursors, and this system was shown to perform adequately across conventional and digital HRA interfaces.
PubMed: 38791987
DOI: 10.3390/cancers16101909 -
Quantitative Imaging in Medicine and... Jan 2023Hemorrhoids are a common benign disorder that can require surgery for treatment. Aluminum potassium sulfate and tannic acid (ALTA) have been used as a sclerotherapy...
Clinical impact of a new method using a clear proctoscope to evaluate the therapeutic effect of sclerotherapy with aluminum potassium sulfate and tannic acid (ALTA) for internal hemorrhoids: a prospective cohort study.
BACKGROUND
Hemorrhoids are a common benign disorder that can require surgery for treatment. Aluminum potassium sulfate and tannic acid (ALTA) have been used as a sclerotherapy agent that induces noninvasive sclerosis and regression of hemorrhoids without surgery. However, there is no objective index for determining its effectiveness. In this study, we prospectively investigated the usefulness of our method as an objective indicator of the effectiveness of ALTA sclerotherapy.
METHODS
From April 2015 to April 2019, 241 patients underwent ALTA sclerotherapy. We standardized a simple evaluation method using the lumen of the lower rectum as observed through a clear plastic proctoscope. Patients' hemorrhoids were evaluated preoperatively and their subjective satisfaction with treatment by our new method was evaluated on postoperative day 7.
RESULTS
Our method showed that among patients who lost the rectal lumen before treatment, the lumen was reacquired after ALTA sclerotherapy in 96.1% (224/233). McNemar test showed the effect of ALTA sclerotherapy to be significantly associated with lumen gain [κ value, 0.0027; 95% confidence interval (CI): 0.0001-0.0052], P<0.001]. Patients' subjective satisfaction with the treatment was significantly higher in the group reacquiring the lumen (Fisher's exact test, P=0.0186). Among those patients needing re-treatment, 59.4% (19/32) had lost their lumen during follow-up [mean difference, 0.578; standard deviation (SD): 0.502, P<0.001].
CONCLUSIONS
Our simple method using a clear plastic proctoscope could objectively indicate the effect of ALTA sclerotherapy and patients who needed re-treatment on losing their lumen during follow-up. We believe this method is highly advantageous for patients, can advocate the concept of the hemorrhoid shrinking sign, and will contribute to the development of new indication criteria for ALTA sclerotherapy.
PubMed: 36620149
DOI: 10.21037/qims-22-471 -
Clinics in Colon and Rectal Surgery Mar 2022Transanal endoscopic surgery encompasses the minimally invasive surgical techniques used to operate in the rectum under magnification while maintaining pneumorectum via... (Review)
Review
Transanal endoscopic surgery encompasses the minimally invasive surgical techniques used to operate in the rectum under magnification while maintaining pneumorectum via a resectoscope or port. The view, magnification, and surgical precision afforded by these advanced transanal techniques have resulted in excellent specimen quality and low recurrence rates, especially compared with traditional transanal surgery. For rigid platforms, the surgeon operates through a rigid 4-cm diameter steel proctoscope of varying lengths that is clamped to the operating table with an articulating arm. Transanal minimally invasive surgery (TAMIS) is a newer flexible platform using a disposable port which "hooks" into the anorectal ring to remain in place. The cost-effectiveness and versatility of the TAMIS platform have resulted in its popularity and use in more advanced applications such as transanal total mesorectal excision. Ultimately, the choice of operating platform should be based on surgeon preference, patient characteristics, availability, and cost. The pros and cons of each platform will be discussed in this article.
PubMed: 35237103
DOI: 10.1055/s-0041-1742108 -
Diseases of the Colon and Rectum May 2022Core factors involved in the treatment of hemorrhoids include the engorgement of hemorrhoids, prolapse, recurrence, and pain.
BACKGROUND
Core factors involved in the treatment of hemorrhoids include the engorgement of hemorrhoids, prolapse, recurrence, and pain.
OBJECTIVE
The goal of this study was to assess the safety, pain, and efficacy of the transanal suture mucopexy for the treatment of hemorrhoids.
DESIGN
This was a retrospective study over a 13-year period.
SETTING
This procedure was performed, and data collected, from medical records at six centers in India.
PATIENTS
This study includes 5634 patients who had grade II to IV symptomatic hemorrhoids. Patients suffering from thrombosed hemorrhoids, inflammatory bowel disease, anal strictures, and anorectal carcinoma were excluded.
INTERVENTIONS
Hemorrhoidal swelling was reduced by manual massage and a steep Trendelenburg position under saddle block. The reduced hemorrhoids were fixed to the muscles of the rectal wall using sutures. Each suture measured 0.5 to 1.0 cm in length; double-locking continuous sutures were used, along the complete circumference of the rectum, at 2 and 4 cm proximal to the dentate line.
MAIN OUTCOME MEASURES
Pain assessed using the visual analog scale and hemorrhoid recurrence served as outcome measures.
RESULTS
The transanal suture mucopexy procedure was performed for 5634 patients with symptomatic hemorrhoids. A dull pain compatible with a visual analog score of 2 to 3 was reported in 126 (2.2%) patients; in the remaining 5508 (97.8%) patients, the visual analog score was 1 to 2. Effective treatment without complications occurred for 5541 patients (98.65%). A recurrence rate of 1.3% was recorded in 5634 cases with a mean follow-up of 7 ± 6 years.
LIMITATIONS
Utilization of a self-illuminating proctoscope or Brinckerhoff or anal speculum is essential.
CONCLUSION
Transanal suture mucopexy, designed with 2 suture rows, is a safe procedure with a short learning curve. It is associated with minimal pain, low recurrence rate, and fewer complications. See Video Abstract at http://links.lww.com/DCR/B841.
MUCOPEXIA TRANSANAL CON SUTURA PARA ENFERMEDAD HEMORROIDAL
ANTECEDENTES:Los factores centrales involucrados en el tratamiento de la enfermedad hemorroidal incluyen congestión de hemorroides, prolapso, recurrencia y dolor.OBJETIVO:Evaluar la seguridad, el dolor y la eficacia de la mucopexia transanal con sutura para el tratamiento de la enfermedad hemorroidal.DISEÑO:Estudio retrospectivo durante un período de 13 años.ESCENARIO:Este procedimiento se realizó y se recopilaron datos de expedientes médicos en seis centros en India.PACIENTES:Este estudio incluye 5634 pacientes con enfermedad hemorroidal sintomática grado II a IV. Se excluyeron pacientes que padecían hemorroides trombosadas, enfermedad inflamatoria intestinal, estenosis anales y carcinoma anorrectal.INTERVENCIONES:La inflamación hemorroidal se redujo mediante masaje manual y posición Trendelenburg profundo bajo bloqueo caudal. Las hemorroides reducidas se fijaron a los músculos de la pared rectal mediante suturas. Cada sutura midió 0.5 a 1.0 cm de longitud, se utilizaron suturas en surgete continuo de doble anclado, a lo largo de la circunferencia completa del recto, a dos y cuatro cm proximales a la línea dentada.PRINCIPALES MEDIDAS DE RESULTADO:El dolor se evaluó mediante la escala de puntuación analógica visual y se evaluó la presencia de recurrencia.RESULTADOS:El procedimiento de mucopexia transanal con sutura se realizó en 5634 pacientes con hemorroides sintomáticas. Se informó un dolor sordo compatible con una puntuación analógica visual de 2-3 en 126 (2.2%) pacientes; en los 5508 (97.8%) pacientes restantes, la puntuación analógica visual fue de 1-2. La mayoría (5541 pacientes [98.65%]) tuvo un tratamiento eficaz sin complicaciones. Se registró una tasa de recurrencia del 1.3% en 5634 casos con un seguimiento medio de 7 ± 6 años.LIMITACIONES:La utilización de un proctoscopio autoiluminado o de Brinckerhoff o espéculo anal es esencial.CONCLUSIÓN:La mucopexia transanal con sutura es un procedimiento seguro diseñado con dos filas de suturas asociadas con dolor mínimo y baja tasa de recurrencia con menos complicaciones. Tiene una curva de aprendizaje corta. Consulte Video Resumen en http://links.lww.com/DCR/B841. (Traducción-Dr. Jorge Silva Velazco).
Topics: Carcinoma; Hemorrhoids; Humans; Pain; Retrospective Studies; Sutures
PubMed: 34958048
DOI: 10.1097/DCR.0000000000002191 -
Annals of Coloproctology Dec 2022The surgical management of patients with full-thickness rectal prolapse (FTRP) continues to remain a challenge in the laparoscopic era. This study retrospectively...
PURPOSE
The surgical management of patients with full-thickness rectal prolapse (FTRP) continues to remain a challenge in the laparoscopic era. This study retrospectively assesses a cohort of patients undergoing a transanal suture sacro rectopexy supported by sclerosant injection into the presacral space under ultrasound guidance.
METHODS
Patients with FTRP underwent a sutured transrectal presacral fixation of 2/3 of the circumference of the rectum from the third sacral vertebra to the sacrococcygeal junction through a side-viewing operating proctoscope. The procedure was supplemented by ultrasound-guided injection into the retrorectal space of a 2 mL solution of sodium tetradecyl sulfate/polidocanol mixed with air. Patients were functionally assessed before and 6 months after surgery with the Agachan constipation score and the Pescatori incontinence score.
RESULTS
There were 36 adult patients (26 males; the range of age, 23-92 years). The mean operative time was 27 minutes (range, 23-50 minutes) with no recorded perioperative morbidity. The median follow-up was 66 months (range, 48-84 months) with 1 (2.8%) recurrence presenting 18 months after surgery. There were 19 patients (52.8%) who presented with incontinence before surgery with 17 out of 19 (89.5%) reporting improvement in their Pescatori score (P<0.001). No patient had worsening incontinence and there were no de novo incontinence cases. Constipation scores improved in 23 out of 36 patients (63.9%) with a mean score reduction difference of 7.91 (P=0.001).
CONCLUSION
Transanal sutured sacral rectopexy with supplemental presacral sclerosant injection is safe and effective in the management of FTRP with sustained improvement in bowel function.
PubMed: 34674514
DOI: 10.3393/ac.2021.00262.0037 -
Journal of the Anus, Rectum and Colon 2021There was an urgent need to create a simple, reliable hemorrhoidectomy procedure for high-risk cases in our university hospital. We performed linear pinched...
OBJECTIVES
There was an urgent need to create a simple, reliable hemorrhoidectomy procedure for high-risk cases in our university hospital. We performed linear pinched hemorrhoidectomy (LPH) and evaluated its effectiveness compared to conventional hemorrhoidectomy (CH).
METHODS
We included 215 Goligher grade 3 and 4 hemorrhoid cases in this study. Of these cases, 167 were in the CH group, and 48 patients were in the LPH group. We retrospectively compared the lengths of hospital stay, operative times, blood loss, and complications.
RESULTS
The age tended to be higher in the LPH group (mean: CH 60 years, LPH 68 years). In the univariate analysis, LPH had more resections, shorter operative times, and less blood loss. LPH had shorter operative times in the multivariate analysis, less blood loss, and more anticoagulant use. There were no significant differences between the two groups in terms of complications. Five and two patients in the CH and LPH groups, respectively, had postoperative hemorrhage requiring hemostasis. Only the CH group had three and four cases of anal stenosis and wound edema, respectively.
CONCLUSIONS
We studied simplified hemorrhoidectomy using an ultrasonic scalpel and cylindrical proctoscope in a university hospital. We found that it a useful procedure with few complications and was easy for residents to learn. We believe that advances in surgical devices will make it possible to perform safer and simpler hemorrhoidectomy in the future.
PubMed: 34395938
DOI: 10.23922/jarc.2020-076 -
La Clinica Terapeutica Jul 2021Haemorrhoids are a very common disease, with a great economic burden. Many treatments have been developed for trying to solve the problem, being the standard not yet... (Comparative Study)
Comparative Study
INTRODUCTION
Haemorrhoids are a very common disease, with a great economic burden. Many treatments have been developed for trying to solve the problem, being the standard not yet found. In 1995, Doppler-guided haemorrhoidal artery ligation was introduced, aiming to reduce postoperative pain and complications. In this work, an evolu-tion of the aforementioned surgical technique was described.
MATERIALS AND METHODS
183 patients treated with standard Doppler-Guided Haemorrhoidal Artery Ligation were statistically compared with 225 patients dealt with Colour Doppler-Guided Haemorrhoidal Artery Ligation. The procedures were performed under local anaes-thesia with patients in lithotomy position. A special proctoscope and a dedicated Colourdoppler US probe were employed in the second group. Superior haemorrhoidal artery terminal branches were con-secutively ligated according to provided technique in the first group and under vision in the second. In all cases, each ligation was followed by mucopexy.
RESULTS
No significant differences between the two groups, in terms of post-operative pain, early complications (bleeding, urinary retention, incontinence) or patient satisfaction, were demonstrated. Recurrence rate was significantly higher in patients treated with stan-dard DG-HAL. No late complications (after one-year follow-up) were registered in both groups.
CONCLUSIONS
Colour Doppler-Guided Haemorrhoidal Artery Li-gation represents an ideal management for 1-day surgery, and fulfils the requirements of minimally invasive surgery in patients with III-IV grade haemorrhoids. The absence of complications and the evidence of significant wellness of patients are the best advantages. Colour Doppler-Guided Haemorrhoidal Artery Ligation is a safe and easy procedure with good results and a very short-time training. It could be considered an easy and reliable method to treat symptomatic haemorrhoids.
Topics: Adult; Echocardiography, Doppler, Color; Female; Hemorrhoidectomy; Hemorrhoids; Humans; Ligation; Male; Mesenteric Artery, Inferior; Middle Aged; Ultrasonography, Doppler
PubMed: 34247216
DOI: 10.7417/CT.2021.2337 -
Acta Cirurgica Brasileira 2020This study presents the surgical and postoperative results achieved with a rigid proctoscope using the transanal endoscopic technique to excise rectal adenomas. The...
PURPOSE
This study presents the surgical and postoperative results achieved with a rigid proctoscope using the transanal endoscopic technique to excise rectal adenomas. The results are compared to the results obtained with other currently employed transanal techniques.
METHODS
We investigated the medical records of patients who underwent transanal endoscopic operations from April 2000 to June 2018 at two tertiary referral centers for colorectal cancer.
RESULTS
This study included 99 patients. The mean age was 65.3 ± 13.3 years. The average size of the adenomas was 4.6 ± 2.3 cm, and their average distance to the anal border was 5.6 ± 3.3 cm. The average operative time was 65.3 ± 41.7 min. In 48.5% of the operations, the specimen was fragmented, and in 59.6% of the cases, the microscopic margins were free. The rates of postoperative complications and relapse were 5% and 19%, respectively. The mean follow-up was 80 ± 61.5 months.
CONCLUSIONS
The described proctoscope proved to be a viable technique with results similar to other techniques, with the advantage that it allowed greater accessibility for surgeons. Therefore, its use could be implemented and become widespread in surgical practice.
Topics: Adenoma; Aged; Anal Canal; Female; Humans; Male; Middle Aged; Neoplasm Recurrence, Local; Proctoscopes; Rectal Neoplasms; Treatment Outcome
PubMed: 32965304
DOI: 10.1590/s0102-865020200080000007 -
Cureus May 2020Background Haemorrhoid is the most common anal canal disease. Treatments may vary from non-invasive to invasive depending on the symptoms. Haemorrhoidectomy has been...
Background Haemorrhoid is the most common anal canal disease. Treatments may vary from non-invasive to invasive depending on the symptoms. Haemorrhoidectomy has been widely used. However, it has some drawbacks like severe postoperative pain, longer time to return to daily activities and complications such as anal stenosis. To overcome these, various new treatment methods have been introduced. Doppler-guided hemorrhoidal artery ligation operations (HALO) are becoming popular among surgeons. HALO has been reported to have a lower recurrence rate of less than 10% and higher patient satisfaction of approximately 90% with minimal postoperative pain. It achieves very good postoperative outcomes in the treatment of early haemorrhoids where per rectal bleeding and/or perianal discomfort are main symptoms. Nevertheless, it has a limitation in the treatment of prolapsing haemorrhoids. To tackle this, simultaneous recto-anal repair (RAR) has been recently introduced. HALO, in combination with RAR, has been reported to achieve good postoperative outcomes and excellent patient satisfaction. This is a two-stage open operation. The stages are: - Doppler-guided HALO and - RAR (recto-anal repair) Methods We are presenting a single-centre one-year experience of Doppler-guided haemorrhoidal artery ligation operation and recto-anal repair (DG-HALO and RAR) conducted on haemorrhoidal patients to evaluate the outcomes and effectiveness of the procedure. Retrospective data were collected for the patients who underwent HALO over one year period from June 2018 to August 2019. A total of 10 patients were treated with the HALO-RAR procedure. Results The male to female ratio was 7:3, median age was 47.98 (28.38 - 61.7) years, median body mass index (BMI) was 30.23 (23.8 - 39.1). Eight patients were American Society of Anesthesiologists (ASA) Grade II, one patient was ASA I and one was ASA III. Time from initial consultation to the HALO procedure was 9.90 (3.5 - 19.8) months. All patients complained of preoperative bleeding and six of them complained of pain or discomfort. Nine patients underwent previous bandings in the clinic and one patient declined banding. The average time of the procedure was 57 mins. The average number of ligations was 10 (0-21). In one case, the proctoscope did not pair with the speaker. The average number of plications was three (2-4). Postoperatively, nine patients had no immediate complications; one patient had acute urinary retention. Seven patients were discharged on the same day. One patient had to stay overnight for monitoring prior to restarting apixaban, one patient for his learning difficulties and one patient had an unplanned overnight stay due to acute urinary retention requiring catheterization. Eight patients had their first follow-up; improvement of symptoms was found in 100% patients on the first follow-up. Conclusion HALO-RAR should be considered as a treatment option for recurrent symptoms after banding for haemorrhoids. The study showed good overall results with no immediate surgical complications. Excellent patient satisfaction was found even in long-term follow-up.
PubMed: 32499984
DOI: 10.7759/cureus.7944 -
Medicine Jan 2020Anastomotic leakage (AL) remains one of the most threatening complications in colorectal surgery with the incidence of up to 20%. The aim of the study is to evaluate the...
INTRODUCTION
Anastomotic leakage (AL) remains one of the most threatening complications in colorectal surgery with the incidence of up to 20%. The aim of the study is to evaluate the safety and feasibility of novel - trimodal intraoperative colorectal anastomosis testing technique.
METHODS AND ANALYSIS
This multi-center prospective cohort pilot study will include patients undergoing colorectal anastomosis formation below 15 cm from the anal verge. Trimodal anastomosis testing will include testing for blood supply by ICG fluorescence trans-abdominally and trans-anally, testing of mechanical integrity of anastomosis by air-leak and methylene blue leak tests and testing for tension. The primary outcome of the study will be AL rate at day 60. The secondary outcomes will include: the frequency of changed location of bowel resection; ileostomy rate; the rate of intraoperative AL; time, taken to perform trimodal anastomosis testing; postoperative morbidity and mortality; quality of life.
DISCUSSION
Trimodal testing of colorectal anastomosis may be a novel and comprehensive way to investigate colorectal anastomosis and to reveal insufficient blood supply and integrity defects intraoperatively. Thus, prevention of these two most common causes of AL may lead to decreased rate of leakage.
STUDY REGISTRATION
Clinicaltrials.gov (https://clinicaltrials.gov/): NCT03958500, May, 2019.
Topics: Anastomosis, Surgical; Anastomotic Leak; Colorectal Surgery; Humans; Ileostomy; Methylene Blue; Operative Time; Pilot Projects; Postoperative Complications; Prospective Studies
PubMed: 31914032
DOI: 10.1097/MD.0000000000018560