Evidence-based review of methods used to reduce pain after excisional hemorrhoidectomy

Utilisation of Deep Neural Networks for Estimation of Cajal Cells in the Anal Canal Wall of Patients with Advanced Haemorrhoidal Disease Treated by LigaSure Surgery

Interstitial cells of Cajal (ICCs) play a key role in gastrointestinal smooth muscle contractions, but their relationship with anal canal function in advanced haemorrhoidal disease (HD) remains poorly understood. This study uses deep neural network (DNN) models to estimate ICC presence and quantity in anal canal tissues affected by HD. Haemorrhoidectomy specimens were collected from patients undergoing surgery with the LigaSure device. A YOLOv11-based machine learning model, trained on 376 immunohistochemical images, automated ICC detection using the CD117 marker, achieving a mean average precision (mAP50) of 92%, with a recall of 86% and precision of 88%. The DNN model accurately identified ICCs in whole-slide images, revealing that one-third of grade III HD patients and 60% of grade IV HD patients had a high ICC density. Preoperatively, pain was reported in 35% of grade III HD patients and 41% of grade IV patients, with a significant reduction following surgery. A significant decrease in bleeding (p < 0.0001) was also noted postoperatively. Notably, patients with postoperative bleeding, diagnosed with stage IV HD, had high ICC density in their anorectal tissues (p = 0.0041), suggesting a potential link between ICC density and HD severity. This AI-driven model, alongside clinical data, may enhance outcome prediction and provide insights into HD pathophysiology.

Toward less invasive coloproctology: The future is out there

Medical care has undergone remarkable improvements over the past few decades. One of the most important innovative breakthroughs in modern medicine is the advent of minimally and less invasive treatments. The trend towards employing less invasive treatment has been vividly shown in the field of gastroenterology, particularly coloproctology. Parallel to foregut interventions, colorectal surgery has shifted towards a minimally invasive approach. Coloproctology, including both medical and surgical management of colorectal diseases, has undergone a remarkable paradigm shift. The treatment of both benign and malignant colorectal conditions has gradually transitioned towards more conservative and less invasive approaches. An interesting paradigm shift was the trend to avoid the need for radical resection of rectal cancer altogether in patients who showed complete response to neoadjuvant treatment. The trend of adopting less invasive approaches to treat various colorectal conditions does not seem to be stopping soon as further research on novel, more effective and safer methods is ongoing.

Evaluation of the efficacy and safety of an innovative flavonoid lotion in patients with haemorrhoid: a randomised clinical trial

OBJECTIVE

Haemorrhoids are one of the most common gastrointestinal and anal diseases. In olive oil and honey propolis, flavonoids have beneficial effects on improving vascular function and decreasing vascular resistance. In this study, we aimed to produce a combination of these two substances in the form of lotions and assess their healing and side effects in comparison with routine treatment, anti-haemorrhoid ointment (containing hydrocortisone and lidocaine).

DESIGN

In this randomised clinical trial study, 86 patients with grade 2 or more haemorrhoid degrees, diagnosed by colonoscopy, were divided into two groups, the case (n=44) and control (n=42). The case group was treated with flavonoid lotion, and the control group was treated with anti-haemorrhoid ointment two times per day for 1 month. Patients were followed weekly with history and physical examination. The data of the two groups were collected before and after the intervention and statistically analysed.

RESULTS

Post-treatment reduction in haemorrhoid grade was significant in the case group (p=0.02). This ratio was insignificant in the control group (p=0.139). Flavonoid lotion (p<0.05) significantly reduced the signs and symptoms of haemorrhoids more than anti-haemorrhoid ointment.

CONCLUSION

According to the results, flavonoid lotion can be an excellent alternative to topical chemical drugs, such as anti-haemorrhoid ointment, in treating haemorrhoid disease. Besides its effectiveness and safety, it can be easily manufactured and widely available to patien.

Laser hemorrhoidoplasty for II-IV grade hemorrhoids: should we treat them the same?

Laser Hemorrhoidoplasty (LHP) is a novel therapeutic option for hemorrhoids. In this study, we aimed to evaluate the post-operative outcomes of patients undergoing LHP surgery based on hemorrhoid grade. A retrospective analysis of a prospective database of all patients who underwent LHP surgery between September 2018 and October 2021 was performed. Patients' demographics, clinical perioperative data, and post-operative outcomes were recorded and analyzed. One hundred and sixty two patients that underwent laser hemorrhoidoplasty (LHP) were included. Median operative time was 18 min (range 8-38). Median total energy applied was 850 Joule (450-1242). Complete remission of symptoms following surgery was reported by 134 patients (82.7%), while 21 patients (13%) reported partial symptomatic relief. Nineteen patients (11.7%) presented with post-operative complications, and 11 patients (6.75%) were re-admitted following surgery. Post-operative complication rate was significantly higher in patients with grade 4 hemorrhoids compared to grades 3 or 2, due to a higher rate of post-operative bleeding (31.6% vs. 6.5% and 6.7%, respectively; p = 0.004). Furthermore, post-operative readmission rate (26.3% vs. 5.4% and 6.2%; p = 0.01) and reoperation rate were also significantly higher in grade IV hemorrhoids (21.1% vs. 2.2% and 0%; p = 0.001). Multivariate analysis found that grade IV hemorrhoids had a significantly higher risk for post-operative bleeding (OR 6.98, 95% CI 1.68-28.7; p = 0.006), 30-day readmission (OR 5.82, 95% CI 1.27-25.1; p = 0.018), and hemorrhoids recurrence (OR 11.4, 95% CI 1.18-116; p = 0.028). LHP is an effective treatment for hemorrhoids grades II-IV, but carries significant risk for bleeding and re-intervention in patients with grade IV hemorrhoids.

Effectiveness of Topical Ketorolac in Post-hemorrhoidectomy Pain Management: A Clinical Trial

Background

Postoperative pain management is one of the major challenges of surgeons and anesthesiologists.

Objectives

This study aimed to determine the efficacy of topical ketorolac in post-hemorrhoidectomy pain management.

Methods

This clinical trial was conducted on 84 candidates for hemorrhoidectomy (grade-II hemorrhoids) who visited Ali ibn Abi-Talib hospital of Rafsanjan, Kerman, Iran (2020 - 2021). The participants were selected through convenience sampling and randomly assigned to three groups of 28. The subjects were treated in topical (4 mL 0.5% Marcaine + 1 mL ketorolac at the surgical site), intramuscular (4 mL 0.5% Marcaine at the surgical site + 1 mL ketorolac intramuscularly), and control (4 mL 0.5% Marcaine at the surgical site) groups. Pain intensity was measured using the Numerical Pain Rating Scale 1, 6, 12, and 24 hours after surgery. The obtained data were analyzed using two-way repeated measures analysis of variance.

Results

Female and male patients constituted 46.4% and 53.6% of the participants, respectively. The mean pain intensity was significantly lower in the topical group than in intramuscular and control treatments in all four stages of pain assessment (P < 0.001). Some participants were treated with pethidine due to high pain intensity. However, the mean pain intensity gradually reduced over time in all three groups.

Conclusions

Study findings suggested that the topical administration of ketorolac and Marcaine was more effective than Marcaine used alone for relieving pain in patients undergoing hemorrhoidectomy.

Strategies to Reduce Post-Hemorrhoidectomy Pain: A Systematic Review

Background and Objectives: Excisional hemorrhoidectomy is considered as a mainstay operation for high-grade hemorrhoids and complicated hemorrhoids. However, postoperative pain remains a challenging problem after hemorrhoidectomy. This systematic review aims to identify pharmacological and non-pharmacological interventions for reducing post-hemorrhoidectomy pain. Materials and Methods: The databases of Ovid MEDLINE, PubMed and EMBASE were systematically searched for randomized controlled trails (published in English language with full-text from 1981 to 30 September 2021) to include comparative studies examining post-hemorrhoidectomy pain as their primary outcomes between an intervention and another intervention (or a sham or placebo). Results: Some 157 studies were included in this review with additional information from 15 meta-analyses. Fundamentally, strategies to reduce post-hemorrhoidectomy pain were categorized into four groups: anesthetic methods, surgical techniques, intraoperative adjuncts, and postoperative interventions. In brief, local anesthesia-alone or combined with intravenous sedation was the most effective anesthetic method for excisional hemorrhoidectomy. Regarding surgical techniques, closed (Ferguson) hemorrhoidectomy performed with a vascular sealing device or an ultrasonic scalpel was recommended. Lateral internal anal sphincterotomy may be performed as a surgical adjunct to reduce post-hemorrhoidectomy pain, although it increased risks of anal incontinence. Chemical sphincterotomy (botulinum toxin, topical calcium channel blockers, and topical glyceryl trinitrate) was also efficacious in reducing postoperative pain. So were other topical agents such as anesthetic cream, 10% metronidazole ointment, and 10% sucralfate ointment. Postoperative administration of oral metronidazole, flavonoids, and laxatives was associated with a significant reduction in post-hemorrhoidectomy pain. Conclusions: This systematic review comprehensively covers evidence-based strategies to reduce pain after excisional hemorrhoidectomy. Areas for future research on this topic are also addressed at the end of this article.

Analgesic Effect of Ropivacaine Combined with Hydromorphone following Surgery for Mixed Hemorrhoids: A Pilot Study

Background

Postoperative pain is a major adverse effect of surgery for mixed hemorrhoids. We evaluated whether spinal anesthesia with ropivacaine and hydromorphone provided safe and effective analgesia after surgery for mixed hemorrhoids.

Methods

This single-center, double-blind pilot study included patients with mixed hemorrhoids who underwent a procedure for prolapse and hemorrhoids (PPH) and external hemorrhoidectomy under spinal anesthesia at Zhejiang Hospital, China (October 2020 to December 2020). Patients were randomized to a hydromorphone group (spinal anesthesia with 0.5% ropivacaine and 75 μg hydromorphone) or morphine group (spinal anesthesia with 0.5% ropivacaine and 150 μg morphine). Pain scores (numerical rating scale), incidences of vomiting and itching, and length of hospital stay (LoS) were recorded at 6, 12, 18, and 24 hours after surgery.

Results

The analysis included 40 patients in each group. Median (interquartile range) pain score in the hydromorphone group was higher than that in the morphine group at 12 hours (1 (0–2] vs. 0 (0–2), p=0.044) but not significantly different between groups at 6 hours (0 (0–1) vs. 0 (0-0) p=0.228), 18 hours (2 (2–3) vs. 2 (1–3) p=0.060) or 24 hours (2 (2–3) vs. 2 (1–3) p=0.081). The hydromorphone group had a lower incidence of pruritus than the morphine group (47.5% vs. 67.5%, p=0.018). There were no significant differences between groups in vomiting incidence or LoS.

Conclusion

In patients with mixed hemorrhoids, spinal anesthesia with ropivacaine/hydromorphone has a comparable analgesic effect and a lower incidence of pruritus during the first 24 hours after surgery than spinal anesthesia with ropivacaine/morphine.

Post-hemorrhoidectomy pain: can surgeons reduce it? A systematic review and network meta-analysis of randomized trials

PURPOSE

Hemorrhoidectomy remains the gold standard treatment for grade III-IV hemorrhoids. However, despite strong recommendations for the suitability of outpatient surgery, post-operative pain has been a limitation to the widespread inclusion of this condition in day surgery programs. The aims of the study were to analyze and compare the post-operative pain of conventional open hemorrhoidectomy, considered the reference technique, against other surgical procedures such as closed hemorrhoidectomy, open hemorrhoidectomy using bipolar or ultrasonic sealant, hemorrhoidopexy, or HAL-RAR, when performed exclusively as outpatients.

METHODS

A systematic review and meta-analysis was conducted according to PRISMA methodology. All prospective and randomized studies of patients operated on for hemorrhoids in day surgery and specifying the value of post-operative pain, using a validated scale, were included. Conventional meta-analyses and a random-effects network meta-analysis were carried out.

RESULTS

Twenty-nine studies were included (3309 patients). None of the procedures described severe pain in the post-operative period. Hemorrhoidopexy was the least painful. Conventional open hemorrhoidectomy was the most painful on the first and seventh post-operative days. Pain was reduced after closed hemorrhoidectomy technique and when bipolar or harmonic scalpel was used. Furthermore, transfixive ligation of the hemorrhoidal pedicle was associated with increased post-operative pain.

CONCLUSION

Hemorrhoidal surgery is feasible in day surgery units and post-operative pain can be adequately managed in an outpatient setting. Hemorrhoidopexy was the least painful; however, data should be carefully evaluated by the high rate of long-term recurrence described in literature. Closed hemorrhoidectomy, performed with bipolar or ultrasonic sealing, avoiding transfixive ligation of the hemorrhoidal pedicle, may improve post-operative pain control.

TRIAL REGISTRATION

CRD42020185160.

The Effect of Perianal Tramadol Infiltration on Postoperative Pain Following Hemorrhoidectomy

INTRODUCTION

The present study was attempted to evaluate the effect of perianal infiltration of tramadol on postoperative pain in patients undergoing hemorrhoidectomy.

METHOD

This double-blind clinical trial study was carried out on 90 patients with grade 3 and 4 hemorrhoids undergoing hemorrhoidectomy. Patients were randomly assigned into 3 groups of control or bupivacaine or tramadol. Before the surgery, perianal infiltration of .25% bupivacaine or tramadol or normal saline was prescribed to each group, respectively. Data on pain severity (based on the visual analog scale (VAS), the duration of surgery, sedation score, pain at the first defecation, first request time for additional analgesia, nausea and vomiting, and analgesic intakes) were evaluated and analyzed.

RESULTS

Duration of surgery was almost similar in all 3 groups (P = .974). The results showed a significant difference in pain score between 3 groups (P ≤.05) at all times after the surgery. In addition, the means of sedation scores (P = .03), pain score at the first defecation (P = .001), the time to first analgesic request (P = .001), and ketorolac administration times (P = .01) were significantly different between 3 groups. Finally, no complication was reported regarding postoperative nausea and vomiting.

CONCLUSION

Given the notable efficacy of tramadol in reducing pain after hemorrhoidectomy and its minor side effects, this medication is suggested as an effective topical anesthetic to decrease pain after hemorrhoidectomy.

Virtual reality distraction decreases pain during daily dressing changes following haemorrhoid surgery

Objective

To investigate whether immersive virtual reality (VR) distraction could decrease pain during postoperative dressing changes.

Methods

This was a prospective, open-label randomized clinical trial that enrolled patients that had undergone haemorrhoidectomy. Patients were randomly assigned to one of two groups: a control group that received the standard pharmacological analgesic intervention during dressing change and a VR group that received VR distraction during dressing change plus standard pharmacological analgesic intervention. Pain scores and physiological measurements were collected before, during and after the first postoperative dressing change.

Results

A total of 182 patients were randomly assigned to the control and VR groups. The baseline characteristics of the VR and control groups were comparable. There was no significant difference in mean pain scores prior to and after the dressing change procedure between the two groups. The mean pain scores at the 5-, 10-, 15- and 20-min time-points during the first dressing change were significantly lower in the VR group compared with the control group. Heart rates and oxygen saturation were not significantly different between the two groups.

Conclusion

Immersive VR was effective as a pain distraction tool in combination with standard pharmacological analgesia during dressing change in patients that had undergone haemorrhoidectomy.