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Peeroo S, Rajagopalan A, Arachchi A, Penfold S, Roschach B, Nguyen TC, Teoh W. Outcomes Following Intrasphincteric Injection of Botulinum Toxin for Treatment of Anal Fissures. Cureus 2024; 16:e53668. [PMID: 38327720 PMCID: PMC10847891 DOI: 10.7759/cureus.53668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2024] [Indexed: 02/09/2024] Open
Abstract
Background Intrasphincteric injection of botulinum toxin is an alternative treatment for anal fissures, which may present less risk of fecal incontinence than more invasive procedures, such as lateral internal sphincterotomy. The aim is to compare cure and complication rates between these two treatments. Methods We conducted a retrospective audit of patients who underwent treatment of anal fissures with intrasphincteric botulinum toxin or lateral internal sphincterotomy from 2016 to 2020 at the Colorectal Surgery Unit of Monash Health, Melbourne, Australia, excluding those who had previously had either procedure. Results Fifty-one patients received intrasphincteric botulinum toxin, and 40 patients underwent lateral internal sphincterotomy. Most patients in the botulinum group had a total dose of either 80 (53%; n=27) or 100 units (37%; n=19) and had the dose administered bilaterally at the 3 o'clock and 9 o'clock positions (n=41; 80%). Thirty-one patients in the botulinum group (61%) had complete resolution of symptoms, with a mean time to cure of two months, compared to 36 patients (90%) in the sphincterotomy group with a mean time to cure of 1.5 months. In most cases, postoperative incontinence was transient, although one patient in the botulinum group had persistent incontinence of flatus, and two patients in the sphincterotomy group had persistent fecal incontinence. Conclusion Intrasphincteric botulinum injection is an effective, less-invasive alternative to sphincterotomy for the treatment of anal fissures, with incontinence usually temporary when it occurs. Further research is needed to optimize the dose and location of injection and guide future recommendations.
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Affiliation(s)
- Saania Peeroo
- Department of Surgery, Monash Health, Melbourne, AUS
| | | | | | - Samuel Penfold
- Department of Surgery, Monash University, Melbourne, AUS
| | | | | | - William Teoh
- Department of Surgery, Monash Health, Melbourne, AUS
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B J G, K R S, Shetty SK, Rao PN, Narvekar S, Nalawade M, Chawda MB, Chitnis KR, Seetharaman R, Tripathi RK. A Pilot, Prospective, Randomized-Controlled Study to Evaluate the Efficacy and Safety of Arsha Hita™ in the Treatment of Anal Fissures. Cureus 2023; 15:e37531. [PMID: 37193430 PMCID: PMC10182782 DOI: 10.7759/cureus.37531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2023] [Indexed: 05/18/2023] Open
Abstract
Introduction Anal fissures are tears in the anal canal that cause pain, bleeding, and spasms. They can be treated with non-operative options such as sitz baths, local anesthetics, topical nitrates, oral fiber, and calcium channel blockers, but some patients require surgery. Topical nitrates have side effects such as severe headaches, while topical calcium channel blockers can cause itching. There is a need to explore alternative treatments with fewer side effects. This proof-of-concept pilot study aimed to compare the efficacy and safety of a combination of Arsha Hita™ tablets and ointment (Shree Dhootapapeshwar Limited, Mumbai Maharastra, India) (test treatment) with a combination of lidocaine 1.5% w/w + nifedipine 0.3% w/w cream for local application and Isabgol powder (6 g) orally as an active comparator (standard treatment), which is the standard treatment of anal fissures as per the Association of Colon and Rectal Surgeons of India (ACRSI) guidelines. Methodology This study was a single-center, prospective, randomized-controlled study conducted in Karnataka, India. Participants were screened for anal fissures and randomized to receive either standard treatment (Group A) or test treatment (Group B) for 14 days, and were re-evaluated after two, four, and six weeks. The study assessed signs and symptoms related to anal fissures, such as pain post-defecation on Visual Analog Scale (VAS), bleeding per anus grading, wound healing grade, stool consistency, and stool frequency. Compliance, inter-current illness, and concomitant therapy were noted at each visit. The study used independent sample t-tests to compare variables at baseline and chi-square or Fisher's exact tests to compare the number/proportion of participants achieving primary and secondary endpoints. Mann-Whitney U test was used to compare median composite scores at baseline and Visit 4, and Friedman's two-way analysis of variance was used to compare median composite scores across the four visits (p < 0.05 was considered significant). Descriptive analysis was used to assess VAS, bleeding, and healing grades. Results The study included 53 participants with anal fissures, of which 25 out of 27 allocated in Group A (two drop-outs) received standard treatment, and all 26 allocated in Group B received Arsha Hita treatment. At the end of the study, 11 participants in Group B achieved a 90% reduction in composite scores compared to only three patients in Group A (p<0.05). Both groups showed improvement in pain on defecation, severity of bleeding, healing of anal fissure wound, and participant's and physician's global impression score. Group B had significantly better results in terms of VAS score, resolution of per-anal bleeding, and physician's global impression score (p<0.05). There were no adverse events in either group during the six-week treatment period. Conclusion The pilot study provides evidence that the combination of Arsha Hita tablets and Arsha Hita ointment may be more effective and safer for treating anal fissures than the standard treatment. The test treatment group experienced greater pain relief, complete resolution of per-anal bleeding, and better global impression scores than the standard treatment group. These findings suggest the need for further research through larger, randomized controlled trials to determine the efficacy and safety of Arsha Hita in treating anal fissures.
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Affiliation(s)
- Gopikrishna B J
- General Surgery (Shalya Tantra), Sri Dharmasthala Manjunatheshwara College of Ayurveda and Hospital, Hassan, IND
| | - Sahanasheela K R
- General Surgery (Shalya Tantra), Sri Dharmasthala Manjunatheshwara College of Ayurveda and Hospital, Hassan, IND
| | - Suhas K Shetty
- Psychiatry (Manas Rog), Sri Dharmasthala Manjunatheshwara College of Ayurveda and Hospital, Hassan, IND
| | - Prasanna N Rao
- General Surgery (Shalya Tantra), Sri Dharmasthala Manjunatheshwara College of Ayurveda and Hospital, Hassan, IND
| | - Sangam Narvekar
- Medical Services, Shree Dhootapapeshwar Limited, Mumbai, IND
| | - Megha Nalawade
- Clinical Research, Shree Dhootapapeshwar Limited, Mumbai, IND
| | - Mukesh B Chawda
- Medical Services, Shree Dhootapapeshwar Limited, Mumbai, IND
| | - Kruttika R Chitnis
- Pharmacology and Therapeutics, Seth Gordhandas Sunderdas Medical College and King Edward (VII) Memorial Hospital, Mumbai, IND
| | - Rajmohan Seetharaman
- Pharmacology and Therapeutics, Seth Gordhandas Sunderdas Medical College and King Edward (VII) Memorial Hospital, Mumbai, IND
| | - Raakhi K Tripathi
- Pharmacology and Therapeutics, Seth Gordhandas Sunderdas Medical College and King Edward (VII) Memorial Hospital, Mumbai, IND
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Singh A, Singh J, Rattan S. Evidence for the presence and release of BDNF in the neuronal and non-neuronal structures of the internal anal sphincter. Neurogastroenterol Motil 2022; 34:e14099. [PMID: 33624396 PMCID: PMC9558559 DOI: 10.1111/nmo.14099] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 12/31/2020] [Accepted: 01/26/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Data on the neuromodulatory effects of brain-derived neurotrophic factor (BDNF) in the gastrointestinal tract were recently reported, but there are still no data on the presence, distribution, and release of BDNF in the gastrointestinal tract, including the internal anal sphincter (IAS). METHODS We examined the presence and distribution of BDNF and its receptor TrkB in the different IAS structures (neuronal and non-neuronal) via immunohistochemical and immunocytochemical analyses. We also monitored the release of BDNF in an IAS muscle bath (consisting of smooth muscle cells [SMCs], myenteric plexus, and submucosal plexus) before and after different agonists, and electrical field stimulation in the absence and presence of neurotoxin tetrodotoxin. KEY RESULTS BDNF/TrkB was found to be present in all layers of the IAS, especially the smooth muscle, mucosa, myenteric plexus, and submucosal plexus. Detailed analyses revealed a significant colocalization between BDNF and TrkB in different structures, especially in the smooth muscle, the SMCs, and both plexuses. Data further showed higher levels of BDNF in the cytosol and that of TrkB toward the periphery of the SMCs. CONCLUSIONS & INFERENCES These studies showed that BDNF/TrkB was present not only in the enteric nervous system (ENS), but also in the SMCs. For the neuromodulatory effects, BDNF is released locally from the ENS ((myenteric (10.01 ± 0.23 pg/ml) and submucosal plexus (9.05 ± 0.51 pg/ml)) and the SMCs (18.63 ± 1.63 pg/ml). Collectively, these findings have pathophysiological and therapeutic implications regarding the role of BDNF/TrkB in the IAS-associated rectoanal motility disorders.
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Affiliation(s)
- Arjun Singh
- Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College, Thomas Jefferson University, 1025 Walnut Street, Room #320 College, Philadelphia, Pennsylvania 19107, USA
| | - Jagmohan Singh
- Department of Pharmacology and Experimental Therapeutics, Jefferson Alumni Hall, Thomas Jefferson University, 1020 Locust Street, Philadelphia, Pennsylvania 19107, USA
| | - Satish Rattan
- Department of Medicine, Division of Gastroenterology & Hepatology, Sidney Kimmel Medical College, Thomas Jefferson University, 1025 Walnut Street, Room #320 College, Philadelphia, Pennsylvania 19107, USA
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Mert T. The importance of topical metronidazole in the treatment of acute anal fissure: a double-blind study controlled for prospective randomization. Ann Coloproctol 2022; 39:131-138. [PMID: 35038820 PMCID: PMC10169549 DOI: 10.3393/ac.2021.00675.0096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/14/2021] [Indexed: 10/19/2022] Open
Abstract
Purpose Acute anal fissure, a disease characterized by severe pain in the anorectal area, reduces quality of life and becomes chronic absent appropriate treatment. More recently, anaerobic infections have been noted as contributive to etiopathogenesis. This study investigates topical metronidazole's effect in the treatment of acute anal fissure. Methods Our prospective randomized controlled double-blind study included 2 groups of 100 patients older than 18 years from our General Surgery Clinic with anal fissure complaints for less than 8 weeks. Topical diltiazem treatment was started in group 1, and topical diltiazem and metronidazole treatment in group 2. Pain levels were evaluated by the visual analogue scale (VAS) score, and recovery status was evaluated by physical examination findings ab initio and at the 1st, 4th, and 6th weeks. VAS score levels, demographic, clinical, and recovery status were then compared. Results There was no difference between the groups as to age, sex, pain on defecation, bleeding, constipation, and duration of pain, bleeding and constipation (P>0.05). From week 1, fissure epithelialization and healing rates were higher in group 2 (P<0.001); group 2 VAS score levels were lower than in group 1 (P<0.001) and achieved by group 1 only in week 4 (P=0.073). Conclusion Adding topical metronidazole to treatment reduces the duration and severity of pain, shortens healing time, and increases the healing rate.
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Affiliation(s)
- Tuba Mert
- Department of General Surgery, Pendik Medipol University School of Medicine, Istanbul, Turkey
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Lee KH, Hyun K, Yoon SG, Lee JK. Minimal Lateral Internal Sphincterotomy (LIS): Is It Enough to Cut Less Than the Conventional Tailored LIS? Ann Coloproctol 2021; 37:275-280. [PMID: 34246204 PMCID: PMC8566144 DOI: 10.3393/ac.2020.00976.0139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 02/15/2021] [Indexed: 11/05/2022] Open
Abstract
Purpose Anal fissure is a common anorectal condition, yet its pathogenesis remains unclear. Lateral internal sphincterotomy (LIS) is the gold standard treatment for chronic anal fissures that do not respond to conservative treatment; however, it has a risk of anal incontinence. We believe that fibrosis of the internal anal sphincter is an important factor in the pathogenesis of chronic anal fissure. In this study, we describe the minimal LIS method, a minimally invasive method where only the fibrotic portion of the internal anal sphincter is cut. We also describe the outcomes of this method. Methods We performed a retrospective review of 468 patients (270 male and 198 female) who underwent minimal LIS for chronic anal fissure in 2017 at Seoul Song Do Hospital. We analyzed the patients’ clinical characteristics, manometry data, complications, and outcomes of minimal LIS. The outcomes of the surgery were assessed via questionnaires during the postoperative outpatient visits, beginning 2 weeks postoperatively. Results The overall complication rate was 4.0% (19 patients). Delayed healing occurred in 14 patients (3.0%), perianal abscess was present in 3 patients (0.6%), and gas incontinence occurred in 2 patients (0.4%). All complications were improved with conservative treatment. Recurrence, defined as the recurrence of anal fissure more than 4 weeks after healing, was present in 6 patients (1.3%). Conclusion Minimal LIS is a safe and effective treatment option for patients with chronic anal fissure. Postoperative complications, especially incontinence and recurrence, are rare.
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Affiliation(s)
- Keun-Hee Lee
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
| | - Keehoon Hyun
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
| | - Seo-Gue Yoon
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
| | - Jong-Kyun Lee
- Department of Surgery, Seoul Song Do Hospital, Seoul, Korea
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Short-term Results of Platelet-Rich Plasma in the Treatment of Chronic Anal Fissure: Randomized Controlled Clinical Study. Dis Colon Rectum 2021; 64:714-723. [PMID: 33399410 DOI: 10.1097/dcr.0000000000001903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Anal fissure is one of the most common benign anal disorders, and medical treatments play an important role in its management. OBJECTIVE The purpose of this study was to investigate the short-term effects and success of platelet-rich plasma in the treatment of chronic anal fissure. DESIGN The study is a 2 parallel group, randomized, controlled clinical trial. SETTINGS The study was performed in 2 tertiary university hospitals. PATIENTS Forty-four patients with chronic anal fissure were randomly assigned to platelet-rich plasma treatment or control group. Presenting symptoms and pain scores were recorded on enrollment. The control patient self-administered topical glyceryl trinitrate. Platelet-rich plasma was injected locally in the intervention group followed by self-administered glyceryl trinitrate. MAIN OUTCOME MEASURES The primary outcome measure is a reduction in pain scores. RESULTS On day 10 and 1 month after treatment, the mean pain score was significantly lower in the patients treated with platelet-rich plasma than in the controls (p = 0.005 and p < 0.005). By 1 month after treatment, the mean pain score declined by 5.7 points in the platelet-rich plasma-treated group compared with a 4.1 mean pain score decline in the control group (mean difference:1.6 points (95% CI, 0.3-2.9)). According to the repeated-measures analyses, pain scores decreased in both groups, but the decrease in the treatment group was statistically higher than in the control group (p < 0.001). Complete epithelialization and recovery rates were significantly higher in the platelet-rich plasma group than in controls at all follow-up times, with p values ranging from 0.034 to <0.001. The observed difference in complete epithelialization after 2 months of treatment between the platelet-rich plasma group and the control group was 56.2% with a 95% CI of 14.03% to 98.4%. LIMITATIONS This study was limited by its small sample size, and long-term follow-up of the patients was not presented. CONCLUSIONS Platelet-rich plasma reduced concerns and accelerated epithelialization and healing in patients with chronic anal fissures. See Video Abstract at http://links.lww.com/DCR/B461.RESULTADOS A CORTO PLAZO DEL PLASMA RICO EN PLAQUETAS EN EL TRATAMIENTO DE LA FISURA ANAL CRÓNICA: ESTUDIO CLÍNICO CONTROLADO ALEATORIZADO. ANTECEDENTES La fisura anal es uno de los trastornos anales benignos más comunes y los tratamientos médicos juegan un papel importante en su manejo. OBJETIVO El propósito de este estudio fue investigar los efectos a corto plazo y el éxito del plasma rico en plaquetas en el tratamiento de la fisura an33al crónica. DISEO El estudio es un ensayo clínico controlado, aleatorizado y de dos grupos paralelos. ESCENARIO El estudio se llevó a cabo en dos hospitales universitarios terciarios. PACIENTES Cuarenta y cuatro pacientes con fisura anal crónica fueron asignados aleatoriamente al grupo de tratamiento con plasma rico en plaquetas o al grupo control. Los síntomas de presentación y las puntuaciones de dolor se registraron en la inscripción. Los pacientes de control se autoadministraron trinitrato de glicerilo tópico. El plasma rico en plaquetas se inyectó localmente en el grupo de intervención seguido de trinitrato de glicerilo autoadministrado. PRINCIPALES MEDIDAS DE RESULTADO La principal medida de resultado es una reducción en las puntuaciones de dolor. RESULTADOS El día 10 y un mes después del tratamiento, la puntuación media de dolor fue significativamente menor en los pacientes con plasma rico en plaquetas que en los controles (p = 0.005 y p <0.005, respectivamente). Un mes después del tratamiento, la puntuación media de dolor disminuyó 5.7 puntos en el grupo tratado con plasma rico en plaquetas en comparación con una disminución de la puntuación media de dolor de 4.1 en el grupo de control (diferencia media: 1.6 puntos [intervalo de confianza del 95%; 0.3-2.9] Según los análisis de medidas repetidas, las puntuaciones de dolor disminuyeron en ambos grupos, pero la disminución en el grupo de tratamiento fue estadísticamente mayor que en el grupo de control (p <0.001). Las tasas de epitelización completa y recuperación fueron significativamente más altas en los pacientes con plasma rico en plaquetas que en los controles en todos los tiempos de seguimiento, con valores de p que van desde 0.034 a <0.001. La diferencia observada en la epitelización completa después de dos meses de tratamiento entre el grupo de plasma rico en plaquetas y el grupo de control fue del 56.2% con un intervalo de confianza del 95% del 14.03% al 98.4%. LIMITACIONES Este estudio estuvo limitado por el pequeño tamaño de la muestra y porque no se proporcionó un seguimiento a largo plazo de los pacientes. CONCLUSIONES El plasma rico en plaquetas redujo las molestias y aceleró la epitelización y la curación en pacientes con fisuras anales crónicas. Consulte Video Resumen en http://links.lww.com/DCR/B461. (Traducción-Dr. Jorge Silva Velazco).
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Picciariello A, Lobascio P, Spazzafumo L, Rinaldi M, Dibra R, Trigiante G, Laforgia R, Pezzolla A, Altomare DF. The REALISE score: a new statistically validated scoring system to assess the severity of anal fissures. Tech Coloproctol 2021; 25:935-940. [PMID: 33987779 PMCID: PMC8289784 DOI: 10.1007/s10151-021-02459-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/04/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND Anal fissure (AF) is a common, painful disease that strongly affects patients' quality of life, however, no scoring system to assess the severity of AF is available in the literature. The aim of this study was to set up and validate a reliable scoring system to quantify the severity of AF, to be used in prospective trials comparing the efficacy and the outcomes of surgical or medical treatments. METHODS The study was conducted on patients with acute or chronic AF and a control group in a tertiary centre for coloproctology in June 2020-September 2020. Two researchers independently carried out a structured interviewer-led questionnaire at two different time points (T1/T2). The questionnaire consisted of five items selected according to the most commonly reported symptoms for AF: the item pain, was scored from 0 to 10 using a visual analogue scale, and quality of life, duration of pain, use of painkillers, and bleeding were scored from 1 to 5 using Likert-scale questions. The scoRing systEm for AnaL fIsSurE (REALISE) score was the sum of the points. Patients with AF and a control group of patients with haemorrhoids, anal fistula, or obstructed defecation syndrome entered the study. Main outcome measures were reliability, inter-/intraobserver agreement, and repeatability. RESULTS One hundred and fifty well-matched patients (75 with AF and 75 controls) were enrolled. A significant difference was found between the mean REALISE score for patients with AF and controls (p < 0.001). The two REALISE scores were highly correlated (r = 0.99). The coefficient of repeatability was 1.45 in T1 and 1.18 in T2. CONCLUSIONS The REALISE score may have an important role in the assessment and management of AF, in grading the severity of AF and comparing results of different treatments.
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Affiliation(s)
- A Picciariello
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy. .,Unit of Laparoscopic Surgery, Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy.
| | - P Lobascio
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - L Spazzafumo
- Agenzia Regionale Sanitaria (The Regional Agency for Health), Marche Region, Ancona, Italy
| | - M Rinaldi
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - R Dibra
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - G Trigiante
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - R Laforgia
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - A Pezzolla
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
| | - D F Altomare
- Surgical Unit "M. Rubino" Department of Emergency and Organ Transplantation, University Aldo Moro of Bari, Bari, Italy
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Mishra N, Parmar KK, Huda T. The comparison between the medical and the surgical management of chronic anal fissures. JOURNAL OF CLINICAL AND INVESTIGATIVE SURGERY 2021. [DOI: 10.25083/2559.5555/6.1.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Introduction. Anal fissures can be defined as a tear or a break in the anoderm. Acute fissures do not exceed a 6 week-duration and can be seen as a simple tear in the anoderm along with edema, whereas chronic fissures are longer than 6 weeks. Aim. To compare the efficacy of the medical and surgical options for the treatment of chronic anal fissures and to recommend the appropriate option in terms of their symptomatic relief, healing of fissures and long-term effectiveness. Materials & Methods. A prospective observational study was conducted for a period of 2 years, that is, from October 2018 to October 2020, including a follow-up period of 2 months. A total of 72 patients with chronic anal fissures were included in the study and randomized into two groups, represented by the medical management group and the surgical management group (Lateral Internal Sphincterotomy (LIS)). Results. In the case of the 36 patients with CAF (chronic anal fissure) who underwent surgical management, all 36 (100%) patients had optimal healing of the fissure at 6 weeks. In the case of the 36 patients with CAF who underwent medical management, only 32 (89%) patients had optimal healing of the fissure at 6 weeks, whereas 4 patients failed to heal even after 2 months. Conclusions. Surgical management is the preferable method for chronic anal fissures in comparison to medical management. But the medical management has a role in acting as a bridge to surgical management in patients who are not fit for surgery or do not perceive surgery as an option at the time.
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Anaraki F, Foroughifar T, Laleh SH, Etemad O. Evaluation of outcomes in fissurectomy and V–Y advancement flap for the treatment of chronic anal fissure. JOURNAL OF COLOPROCTOLOGY 2021. [DOI: 10.1016/j.jcol.2018.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractChronic anal fissure is difficult to treat. Surgery is usually recommended in the case of drug therapeutic failure. Fecal incontinence in patients with weaker sphincters (multipara older patients with a history of pelvic surgery etc.) is a major reason for rejecting surgery. Such these patients should be underwent fissurectomy and V–Y advancement flap in which sphincterotomy is not required. In this prospective study, we determined the outcomes and complications of fissurectomy and V–Y advancement flap in both groups of patients with low and high anal sphincter tones.
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Affiliation(s)
- Fakhrosadat Anaraki
- Shahid Beheshti University of Medical Sciences, Taleghani Hospital Research Development Unit, Colorectal Division of Surgical Ward, Tehran, Iran
| | - Tahereh Foroughifar
- Tehran University of Medical Sciences, Baharloo Hospital, Department of Pelvic Floor Surgery, Tehran, Iran
| | - Seyed Hossein Laleh
- Shahid Beheshti University of Medical Sciences, Taleghani Hospital Research Development Unit, Colorectal Division of Surgical Ward, Tehran, Iran
| | - Omid Etemad
- Tehran University of Medical Sciences, Imam Khomeini Hospital Complex, Plastic & Reconstructive Surgery Ward, Tehran, Iran
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El Charif MH, Doughan S, Kredly R, Kassas S, Azab R, Sbaity E. MEBO versus topical Diltiazem versus a combination of both ointments in the treatment of acute anal fissure: a randomized clinical trial protocol. BMC Complement Med Ther 2021; 21:75. [PMID: 33627111 PMCID: PMC7902753 DOI: 10.1186/s12906-021-03227-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 01/27/2021] [Indexed: 12/21/2022] Open
Abstract
Background Anal fissure is a common complication of the anorectal region and one of the most reported causes of anal pain. Acute anal fissure can be cured by surgery or medical treatment. There is an increase in the use of topical therapy for the treatment of anal fissures. A common topical drug used is Diltiazem (DTZ), a calcium-channel blocker, which relaxes the anal sphincter and thus promotes healing of the anal fissure. Moist exposed burn ointment (MEBO) is an ointment that is effective for the treatment of burns and wound healing and is becoming popular in the treatment of anal fissures. Methods This is a 1:1:1 randomized, controlled, parallel design, with endpoint measures of change in pain score, wound healing, defecation strain score and patient’s global impression of improvement. The study will be conducted at AUBMC over a 10-week period. Patients will be randomized to three treatment arms: MEBO, Diltiazem, and a combination of MEBO and Diltiazem ointments. Discussion The results of this study will allow physicians to assess the efficacy and safety of MEBO in the treatment of acute anal fissure, and also in comparison to Diltiazem. This trial will generate evidence-based conclusions regarding the use of a herbal/natural-based product (MEBO ointment) for the treatment of anal fissures. Trial registration ClinicalTrials.gov Identifier NCT04153032. Clinical Trial Registration Date: 06-NOVEMBER-2019. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03227-z.
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Affiliation(s)
- Mohamad Hadi El Charif
- Department of Surgery, American University of Beirut Medical Center, Riad El-Solh, Beirut, Lebanon
| | - Samer Doughan
- Department of Surgery, American University of Beirut Medical Center, Riad El-Solh, Beirut, Lebanon
| | - Rawya Kredly
- Office of Medical Affairs, Gulf Pharmaceutical Industries - Julphar, United Arab Emirates, Beirut-Lebanon Offices, Beirut, Lebanon
| | - Sara Kassas
- Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon
| | - Rayan Azab
- Gulf Pharmaceutical Industries - Julphar, United Arab Emirates, Beirut-Lebanon Offices, Beirut, Lebanon
| | - Eman Sbaity
- Department of Surgery, American University of Beirut Medical Center, Riad El-Solh, Beirut, Lebanon.
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11
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Balcı S, Onur MR, Karaosmanoğlu AD, Karçaaltıncaba M, Akata D, Konan A, Özmen MN. MRI evaluation of anal and perianal diseases. ACTA ACUST UNITED AC 2019; 25:21-27. [PMID: 30582572 DOI: 10.5152/dir.2018.17499] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Anal and perianal region is a commonly affected area in the course of several inflammatory, infectious, and neoplastic diseases. Several imaging modalities may be used in imaging evaluation of this area and magnetic resonance imaging (MRI) emerges as the imaging modality of choice due to its superb soft tissue resolution. MRI is not only useful for initial detection of anal/perianal pathologies but also in the follow-up of these disorders. In this article, we aimed to illustrate MRI findings of several diseases affecting this area including perianal fistula as well as anal fissure, hypertrophic myopathy of internal anal sphincter, hidradenitis suppurativa, pilonidal sinus, rectovaginal/anovaginal fistula and anal canal carcinoma. We think that this article will serve to familiarize the imaging specialists to the MRI findings of these diseases.
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Affiliation(s)
- Sinan Balcı
- Department of Radiology, Artvin State Hospital, Artvin, Turkey
| | - Mehmet Ruhi Onur
- Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey
| | | | | | - Deniz Akata
- Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Ali Konan
- Department of General Surgery, Hacettepe University School of Medicine, Ankara, Turkey
| | - Mustafa Nasuh Özmen
- Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey
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12
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Aho Fält U, Lindsten M, Strandberg S, Dahlberg M, Butt S, Nilsson E, Zawadzki A, Johnson LB. Percutaneous tibial nerve stimulation (PTNS): an alternative treatment option for chronic therapy resistant anal fissure. Tech Coloproctol 2019; 23:361-365. [PMID: 30972649 PMCID: PMC6536470 DOI: 10.1007/s10151-019-01972-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/26/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND The aim of the present study was to evaluate percutaneous tibial nerve stimulation (PTNS) for treatment resistant chronic anal fissure. METHODS Consecutive patients with chronic anal fissure were treated with neuromodulation via the posterior tibial nerve between October 2013 and January 2014. Patients had PTNS for 30 min on 10 consecutive days. All patients had failed conventional medical treatment. The visual analogue scale (VAS) score, St. Marks score, Wexner's constipation score, Brief Pain Inventory (BPI-SF), bleeding and mucosal healing were evaluated before treatment, at termination, after 3 months, and then yearly for 3 years. RESULTS Ten patients (4 males and 6 females; mean age 49.8 years) were identified but only 9 were evaluated as one patient's fissure healed before PTNS was started. At 3-year follow-up, fissures had remained completely healed in 5 out of 9 patients. All patients stopped bleeding and were almost completely pain-free at 3 years (VAS p = 0.010) and pain relief improved from 50% at completion to 90% at 3 years. The patients' Wexner constipation scores improved significantly (p = 0.007). CONCLUSIONS In this small series, PTNS enhanced healing of chronic anal fissure and reduced pain and bleeding with an associated improvement in bowel function.
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Affiliation(s)
- Ursula Aho Fält
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Martin Lindsten
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Sara Strandberg
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Mari Dahlberg
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Salma Butt
- Department of Surgery, Institution of Clinical Sciences Malmö, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Emelie Nilsson
- Department of Surgery, Institution of Clinical Sciences Malmö, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Antoni Zawadzki
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden
| | - Louis Banka Johnson
- Department of Surgery, Pelvic Floor Centre, Skåne University Hospital-SUS, Lund University, 205 02, Malmö, Sweden.
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Siddiqui J, Fowler GE, Zahid A, Brown K, Young CJ. Treatment of anal fissure: a survey of surgical practice in Australia and New Zealand. Colorectal Dis 2019; 21:226-233. [PMID: 30411476 DOI: 10.1111/codi.14466] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/19/2018] [Indexed: 12/19/2022]
Abstract
AIM The aim was to determine whether or not the clinical management of anal fissure in Australia and New Zealand accords with published guidelines. METHODS A comprehensive survey based on common clinical scenarios was distributed to 206 colorectal surgeons in Australia and New Zealand. RESULTS The response rate was 44% (91 surgeons). For 19 topic areas, only seven (37%) reached consensus (defined as > 70% majority opinion). Of these, six (86%) agreed with guideline recommendations. Twelve (63%) topic areas demonstrated community equipoise (defined as less than or equal to 70% majority opinion), of which five (42%) agreed with guideline recommendations and seven (58%) disagreed with guidelines. Of the seven topics that disagreed with guidelines, three were based on moderate quality evidence (first line management of acute anal fissure in a young patient, fissure healing and faecal incontinence rates following anocutaneous flap) and four were based on low quality evidence (length of sphincter division during a lateral sphincterotomy in women, management of chronic low-pressure anal fissures postpartum, fissure healing rate following anoplasty with botulinum toxin or sphincterotomy and faecal incontinence rates following repeat sphincterotomy for recurrence). Consensus and/or agreement with guidelines were more prevalent in management when medical therapy failed. CONCLUSION While areas of consensus mostly agreed with guideline recommendations, there remain many areas of community equipoise which warrant further research.
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Affiliation(s)
- J Siddiqui
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - G E Fowler
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - A Zahid
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - K Brown
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - C J Young
- Department of Colorectal Surgery, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,Central Clinical School, University of Sydney, Sydney, New South Wales, Australia
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Cox DRA, Rao A, Ee E. Syphilis as an atypical cause of perianal fissure. J Surg Case Rep 2018; 2018:rjy320. [PMID: 30505428 PMCID: PMC6255878 DOI: 10.1093/jscr/rjy320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 11/01/2018] [Accepted: 11/04/2018] [Indexed: 11/22/2022] Open
Abstract
We present the case of a 29-year-old woman who attended a surgical outpatient clinic with symptoms of perianal fissure due to syphilitic infection. This uncommon aetiology of a common condition is often alluded to in textbooks, but little information exists in the scientific literature regarding the pathogenesis, presentation and treatment of fissure-in-ano secondary to syphilis. We present the case and an overview of the topic aimed at surgeons and clinicians who manage patients with perianal pathology. Syphilis is far from a disease of antiquity; in patients presenting with fissure-in-ano a thorough sexual history and sexually transmissible infection screening in at-risk groups may avoid mis-diagnosis, community transmission and unnecessary procedures.
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Affiliation(s)
- Daniel R A Cox
- General Surgery Department, Monash Health, Melbourne, Australia
| | - Apoorva Rao
- General Surgery Department, Monash Health, Melbourne, Australia
| | - Eric Ee
- General Surgery Department, Monash Health, Melbourne, Australia
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Posterolateral versus lateral internal anal sphincterotomy in the treatment of chronic anal fissure: a randomized controlled trial. Int J Colorectal Dis 2018; 33:1461-1467. [PMID: 29779044 DOI: 10.1007/s00384-018-3087-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/10/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Lateral internal anal sphincterotomy (LIS) is considered the treatment of choice for chronic anal fissure. This study aimed to compare the outcome of standard LIS and posterolateral internal sphincterotomy (PLIS) at 5 o'clock position as regards healing of anal fissure, improvement in symptoms, and complications. METHODS Patients with chronic anal fissure were randomly allocated to one of two groups; group I underwent PLIS and group II underwent LIS. Patients were compared regarding the duration of healing of anal fissure, improvement in anal pain as recorded by visual analogue scale (VAS), complications, particularly fecal incontinence (FI) and changes in the anal pressures. RESULTS Eighty (49 females) patients were included to this trial. The mean age of patients was 35.5 years. The duration of healing was significantly shorter in group I than in group II (4.1 ± 1.7 vs 5.8 ± 1.4 weeks; p < 0.0001). Group I achieved significantly lower pain score at 1 month postoperatively than group II (1.1 ± 0.9 vs 1.7 ± 0.98; p = 0.005). Two (2.5%) of group I patients and six (10%) of group II patients experienced minor FI postoperatively. The postoperative reduction in the mean resting anal pressure in group I was significantly higher than that in group II. CONCLUSION Time to complete healing was significantly shorter and pain score was significantly lower after PLIS than after LIS which can be due to more reduction in the resting anal pressure after PLIS. Continence disturbances occurred after PLIS less frequently than after LIS; however, no significant differences between the two techniques were noted. TRIAL REGISTRATION www.clinicaltrials.gov NCT03426449.
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Alvandipour M, Ala S, Khalvati M, Yazdanicharati J, Koulaeinejad N. Topical Minoxidil Versus Topical Diltiazem for Chemical Sphincterotomy of Chronic Anal Fissure: A Prospective, Randomized, Double-Blind, Clinical Trial. World J Surg 2018; 42:2252-2258. [PMID: 29290068 DOI: 10.1007/s00268-017-4449-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Anal fissure is a common anorectal problem causing severe pain and discomfort to the patients. Chemical sphincterotomy has emerged as a noninvasive alternative to the surgical methods of fissure treatment. The objective of this study was evaluation of the efficacy and the adverse effects of topically applied minoxidil in chemical sphincterotomy of chronic anal fissure in comparison with topical diltiazem. METHODS A total of 88 patients with chronic anal fissure aged between 15 and 65 years were included in this double-blind, randomized clinical trial and were randomly assigned to either 0.5% minoxidil cream or 2% diltiazem cream twice daily for 2 weeks. The pain intensity, bleeding, wound healing, itching, headache, dizziness, significant drop in blood pressure, allergy and fissure relapse were assessed on a monthly basis for 2 months. RESULTS Both diltiazem and minoxidil reduced the pain, bleeding and improved fissure healing with no significant difference. There were no between-groups differences in the frequencies of adverse effects, except for itching which was slightly higher with minoxidil during the first month. Allergy occurred in two patients in the minoxidil group, which was not severe and did not lead to discontinuation of the trial. CONCLUSION Topically administered minoxidil is of equal efficacy as diltiazem in the treatment of chronic anal fissure with low frequency of adverse effects. Thus, it can be considered as an agent for chemical sphincterotomy of anal fissure, but the itching at the beginning of the treatment can affect the adherence of the patient to treatment. Trial registration number IRCT2015041414483N6 (the full trial protocol could be accessed online at www.irct.ir ).
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Affiliation(s)
- Mina Alvandipour
- Department of Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran Province, Iran
| | - Shahram Ala
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, 18th Km Farahabad Boulevard, Sari, Mazandaran Province, 48175861, Iran.
| | - Mehdi Khalvati
- Department of Surgery, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran Province, Iran
| | - Jamshid Yazdanicharati
- Department of Health, Biostatistics and Medical Research, Mazandaran University of Medical Sciences, Sari, Mazandaran Province, Iran
| | - Neda Koulaeinejad
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, 18th Km Farahabad Boulevard, Sari, Mazandaran Province, 48175861, Iran
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Oral Plus Local Antibiotics Significantly Reduce the Need for Operative Intervention in Chronic Anal Fissure: a Novel Finding. Indian J Surg 2017. [DOI: 10.1007/s12262-017-1617-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Salari M, Salari R, Dadgarmoghadam M, Khadem-Rezaiyan M, Hosseini M. Efficacy of egg yolk and nitroglycerin ointment as treatments for acute anal fissures: A randomized clinical trial study. Electron Physician 2016; 8:3035-3041. [PMID: 27957300 PMCID: PMC5133025 DOI: 10.19082/3035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/13/2016] [Indexed: 11/29/2022] Open
Abstract
Background Acute anal fissure as a common disease in society has several etiologies and manifestations such as severe anal pain and bleeding. Nitroglycerin ointment 0.2% is the most common topical treatment used. The most common side effect of nitroglycerin is headache, which is annoying for patients and often leads to discontinuation of the drug. Objective Comparison of egg yolk as a natural substance with analgesic and anti-inflammatory properties and minimal side effects with nitroglycerin ointment in the treatment of acute anal fissure. Methods This randomized clinical trial was carried out during a 10-day period in the Gastroenterology clinic of Ghaem Hospital, Mashhad, Iran (year 2015). 126 patients who filled the inclusion criteria were enrolled. The patients were randomly divided into two groups. Nitroglycerin ointment (0.2%) was applied by patients in the first group, twice daily for 10 days. For the second group, one egg yolk once a day was administered rectally up to 10 days. The pain and bleeding severity were recorded every two days up to 10 days after finishing the treatment course, based on visual scale Results The results showed that egg yolk caused a significant reduction in pain and bleeding compared with nitroglycerin (p<0.05). At the beginning of the study, the difference in pain intensity between the two groups was not statistically significant (p-value = 0.25). However, it became significant in the following days. Changes in the frequency of rectorrhagia were also significant in both groups, showing a major decrease in the number of rectorrhagia cases (p<0.001). Conclusion Egg yolk is more efficient than nitroglycerin in the treatment of acute anal fissure. In addition, lack of any side effects results in the completion of the treatment course by the patients. Trial Registration The trial was registered at the Iranian Registry of Clinical Trials (http://www.irct.ir) with the Irct ID: IRCT2015050718915N3. Funding This work was supported by a grant from the Vice Chancellor of Research of Mashhad University of Medical Sciences.
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Affiliation(s)
- Masoumeh Salari
- M.D., Internist, Assistant Professor, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roshanak Salari
- Ph.D. of Drug Control, Assistant Professor, Department of Traditional Persian Pharmacy, School of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maliheh Dadgarmoghadam
- M.D., Assistant Professor, Department of Community Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Khadem-Rezaiyan
- M.D., Community Medicine Specialist, Department of Community Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mousalreza Hosseini
- M.D., Gastroenterologist, Assistant Professor, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Ala S, Enayatifard R, Alvandipour M, Qobadighadikolaei R. Comparison of captopril (0.5%) cream with diltiazem (2%) cream for chronic anal fissure: a prospective randomized double-blind two-centre clinical trial. Colorectal Dis 2016; 18:510-6. [PMID: 26456162 DOI: 10.1111/codi.13147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 07/17/2015] [Indexed: 02/08/2023]
Abstract
AIM This study compared the efficacy of topical captopril with topical diltiazem in the treatment of chronic anal fissure (CAF). METHOD Fifty patients aged between 15 and 75 years with CAF were included in a prospective randomized, double-blind clinical trial. They were randomly allocated to either captopril (0.5%) cream or diltiazem (2%) cream in a dose of 2 cm of cream on the perianal skin every 12 h for 8 weeks. The intensity of pain upon defaecation was evaluated every 10 days using a visual analogue scale. Bleeding on defaecation, pruritus and the presence of perianal irritation were also recorded before and during the trial. RESULTS The average pain scores were lower in the diltiazem group on the 20th and 30th days. From day 40 to the end of the trial the average pain scores of the two groups did not differ significantly. There were no significant differences in bleeding or perianal irritation between the groups, but the incidence of pruritus was considerably higher in the captopril group, and at the end of the trial 45.8% of the patients in this group still suffered from pruritus. CONCLUSION Topical captopril and diltiazem were found to be equally effective in the management of pain, bleeding and perianal irritation due to CAF, but due to the high incidence of pruritus observed with topical captopril this medication is not recommended for the treatment of CAF.
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Affiliation(s)
- S Ala
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - R Enayatifard
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - M Alvandipour
- Department of Surgery, Imam Khomeini General Hospital affiliated to Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - R Qobadighadikolaei
- Department of Clinical Pharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
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Grekova NM, Maleva EA, Lebedeva Y, Bordunovsky VN, Telesheva LF, Bychkovskikh VA. The effects of topical application of metronidazole for treatment of chronic anal fissure: A randomized, controlled pilot study. Indian J Gastroenterol 2015; 34:152-7. [PMID: 25925729 DOI: 10.1007/s12664-015-0559-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 04/01/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND Chronic anal fissures (CAFs) rarely heal with conservative management. Because they are associated with strong anal sphincter tone, most treatment aim to reduce anal pressure. Although infections can cause fissures, as can traumatic injury to the anal canal, antimicrobial treatment is not recommended. In a previous study, we reported identifying a wide spectrum of pathogenic microorganisms in the bases of CAFs, anaerobic bacteria being present in half the cases. We postulated that microbial colonization delays healing of CAF and aimed to determine whether decreasing the bacterial load with topical antibacterial treatment accelerates fissure healing. METHODS We cultured fecal samples and swabs from the bases of CAFs in 103 patients. Patients in whose samples anaerobic bacteria were identified (47 patients) were then invited to participate in a prospective randomized clinical trial comparing topical metronidazole with conventional treatment. The primary endpoint was fissure healing confirmed on anoscopy. Secondary endpoints of maximum pain on defecation assessed by visual analog scale, maximum anal resting pressure, and rectal pH were recorded on entry and at 10, 21, and 28 days. RESULTS The CAFs were colonized by mixtures of gram-positive/gram-negative anaerobic bacteria or gram-negative aerobic monocultures. Patients with anaerobic bacteria in their swabs who received topical metronidazole treatment experienced rapid relief of pain and anal sphincter spasm along with enhanced fissure healing (95.6 % healing rate compared with 70.8 % in the control group, p = 0.048). CONCLUSION Topical antimicrobial treatment can be effective in patients with CAF provided the relevant microorganisms are correctly identified.
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Topical diltiazem in management of chronic anal fissure: a review of the literature. ACTA ACUST UNITED AC 2014. [DOI: 10.4155/cli.14.86] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Golfam F, Golfam P, Golfam B, Pahlevani P. Comparison of topical nifedipine with oral nifedipine for treatment of anal fissure: a randomized controlled trial. IRANIAN RED CRESCENT MEDICAL JOURNAL 2014; 16:e13592. [PMID: 25389477 PMCID: PMC4222003 DOI: 10.5812/ircmj.13592] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 03/04/2014] [Accepted: 04/06/2014] [Indexed: 11/16/2022]
Abstract
Background: Medical sphincterotomy has gained popularity as a treatment for anal fissure. Calcium channel blockers in topical forms could also be appropriate with low adverse effects. Objectives: This was a prospective randomized controlled trial to compare topical and oral nifedipine in the treatment of chronic anal fissure. Patients and Methods: A prospective randomized controlled trial was conducted at two centers of Shahed University. One hundred and thirty patients with chronic anal fissure aged 18 to 60 years managed in our clinics were included in this study. The patients were randomly divided into two groups. Sixty-five patients received topical nifedipine (TN) and the same number received oral nifedipine (ON). Results: Ulcer healing occurred in 43 (73.33%) of topical nifedipine group compared to 29 (49.5%) patients in oral nifedipine, which was significantly different (P < 0.05). Side effects such as headache and flushing in oral nifedipine group were more prevalent than topical nifedipine, which was statistically different. Recurrence rates were the same after six months of follow-up. Conclusions: Although oral nifedipine can reduce symptom and signs of anal fissure, topical nifedipine has a superior role for anal fissure treatment with higher healing rate and lower side effects.
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Affiliation(s)
- Farzaneh Golfam
- Department of Surgery, Mostafa Khomeini Hospital, Shahed University, Tehran, IR Iran
| | - Parisa Golfam
- Department of Anesthesiology, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, IR Iran
- Corresponding Author: Parisa Golfam, Department of Anesthesiology, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, IR Iran. Tel: +98-9181310864, Fax: +98-8317246693, E-mail:
| | - Babak Golfam
- Department of Anesthesiology, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
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Mapel DW, Schum M, Von Worley A. The epidemiology and treatment of anal fissures in a population-based cohort. BMC Gastroenterol 2014; 14:129. [PMID: 25027411 PMCID: PMC4109752 DOI: 10.1186/1471-230x-14-129] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 07/07/2014] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Anal fissure (AF) is regarded as a common problem, but there are no published epidemiologic data, nor information on current treatment. The purpose of this study was to examine the incidence, associated comorbidities, and treatment of AF in a population-based cohort. METHODS We conducted a retrospective analysis of all persons who were enrolled in one large regional managed care system and treated for AF during calendar years 2005-2011. All persons aged 6 years or older who had a clinic, hospitalization, or surgical procedure associated with AF were identified from utilization data. To identify comorbidities associated with AF, each case was matched by age and gender to 3 controls. RESULTS There were 1,243 AF cases, including 721 (58%) females and 522 (42%) males; 150 (12%) of the cases occurred in children aged 6-17 years. The overall annual incidence was 0.11% (1.1 cases per 1000 person-years), but ranged widely by age [0.05% in patients 6-17 years to 0.18% in patients 25-34 years]. The incidence also varied by sex, and was significantly higher among females 12-24 years, and among males 55-64 years (P < 0.001). Comorbidities associated with AF included chronic constipation (prevalence 14.2% vs 3.6%), hypothyroidism (14.7% vs 10.4%), obesity (13.0% vs 7.7%), and solid tumors without metastasis (5.2% vs 3.7%) (P < 0.001 for all comparisons). A total of 448 were dispensed a topical prescription medication, 31 had botulinum toxin injection, and only 13 had lateral internal sphincterotomy. CONCLUSIONS AF is a common clinical problem, and the incidence varies substantially by age and sex. Constipation, obesity, and hypothyroidism are associated comorbidities. Most patients are prescribed topical treatments, although it appears that many prescriptions are never filled. Surgical interventions for AF including botulinum toxin and lateral internal sphincterotomy are uncommon.
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Affiliation(s)
- Douglas W Mapel
- Lovelace Clinic Foundation, 2309 Renard Place SE, Albuquerque NM 87106, New Mexico, USA.
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Ahmad N, Amin S, Neupane YR, Kohli K. Anal fissure nanocarrier of lercanidipine for enhanced transdermal delivery: formulation optimization,ex vivoandin vivoassessment. Expert Opin Drug Deliv 2014; 11:467-78. [DOI: 10.1517/17425247.2014.876004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Bulus H, Varol N, Tas A, Coskun A. Comparison of topical isosorbide mononitrate, topical diltiazem, and their combination in the treatment of chronic anal fissure. Asian J Surg 2013; 36:165-9. [PMID: 24054756 DOI: 10.1016/j.asjsur.2013.01.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 11/05/2012] [Accepted: 01/15/2013] [Indexed: 11/29/2022] Open
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Abstract
An anal fissure is defined as a linear tear or ulcer of the anal mucosa. Patients typically describe a sharp pain 'like passing broken glass' on defaecation, followed by a burning pain in the anus lasting a few hours. Pain and bleeding during and after the passage of stool are the usual presenting features. Fissures are most common in young to middle-aged adults and are also commonly seen in pregnant and postpartum women. The lifetime incidence of anal fissure is around 11%. Here, we review the evidence on the efficacy and safety of non-surgical treatments for anal fissure.
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Lu M, Shi GY, Wang GQ, Wu Y, Liu Y, Wen H. Milligan-Morgan hemorrhoidectomy with anal cushion suspension and partial internal sphincter resection for circumferential mixed hemorrhoids. World J Gastroenterol 2013; 19:5011-5015. [PMID: 23946609 PMCID: PMC3740434 DOI: 10.3748/wjg.v19.i30.5011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 07/13/2013] [Indexed: 02/07/2023] Open
Abstract
AIM: To identify a more effective treatment protocol for circumferential mixed hemorrhoids.
METHODS: A total of 192 patients with circumferential mixed hemorrhoids were randomized into the treatment group, where they underwent Milligan-Morgan hemorrhoidectomy with anal cushion suspension and partial internal sphincter resection, or the control group, where traditional external dissection and internal ligation were performed. Postoperative recovery and complications were monitored.
RESULTS: The time to wound healing was 12.96 ± 2.25 d in the treatment group shorter than 19.58 ± 2.71 d in the control group. Slight pain rate was 58.3% in the treatment group higher than 22.9% in the control group; moderate pain rate was 33.3% in the treatment group lower than 56.3% in the control group severe pain rate was 8.4% in the treatment group lower than 20.8% in the control group. No edema rate was 70.8% in the treatment group higher than 43.8% in the control group; mild local edema rate was 26% in the treatment group lower than 39.6% in the control group obvious local edema was 3.03% in the treatment group lower than 16.7% in the control group. No stenosis rate was 85.4% in the treatment group higher than 63.5% in the control group; moderate stenosis rate was 14.6% in the treatment group Lower than 27.1% in the control group severe anal stenosis rate was 0% in the treatment group lower than 9.4% in the control group.
CONCLUSION: Milligan-Morgan hemorrhoidectomy with anal cushion suspension and partial internal sphincter resection is the optimal treatment for circumferential mixed hemorrhoids and can be widely applied in clinical settings.
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Berry SM, Barish CF, Bhandari R, Clark G, Collins GV, Howell J, Pappas JE, Riff DS, Safdi M, Yellowlees A. Nitroglycerin 0.4% ointment vs placebo in the treatment of pain resulting from chronic anal fissure: a randomized, double-blind, placebo-controlled study. BMC Gastroenterol 2013; 13:106. [PMID: 23815124 PMCID: PMC3710466 DOI: 10.1186/1471-230x-13-106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 06/05/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Complications of chronic anal fissure (CAF) treatments are prompting interest in lower-risk therapies. This study was conducted to compare nitroglycerin (NTG) 0.4% ointment with placebo for pain associated with CAF. METHODS In this randomized, double-blind, placebo-controlled trial, patients with one CAF and moderate-to-severe pain (≥50 mm on a 100 mm visual analog scale [VAS]) received 375 mg NTG 0.4% (1.5 mg active ingredient) or 375 mg placebo ointment applied anally every 12 hours for 21 days. The primary end point was change from baseline VAS score in 24-hour pain averaged over days 14-18. Review of data from patients who withdrew early was blinded to treatment. To control for the confounding effects of analgesics, all patients received 650 mg acetaminophen for headache prophylaxis before each application. RESULTS A total of 247 patients were enrolled (NTG, n = 123; placebo, n = 124). The prespecified baseline observation carried forward (BOCF) analysis found no significant difference between groups; however, a last observation carried forward (LOCF) analysis showed a significant advantage for NTG. A post hoc analysis (LOCF/BOCF hybrid) demonstrated a significant adjusted mean difference of -7.0 mm in favor of NTG 0.4% (95% CI -13.6, -0.4; P = .038). Headache was the most common adverse event in the NTG (69.9%) and placebo (47.6%) groups. CONCLUSIONS This was the first placebo-controlled study that also controlled for the confounding effects of analgesics used to treat NTG-induced headache. In patients with moderate-to-severe CAF pain, NTG 0.4% ointment effectively reduced CAF pain compared with placebo. TRIAL REGISTRATION ClinicalTrials.gov, NCT00522041.
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Affiliation(s)
- Scott M Berry
- CRC of Jackson, 501 Marshall Street #500, Jackson, MS 39202, USA
| | - Charles F Barish
- Wake Research Associates, LLC, 3100 Blue Ridge Road, Suite 300, Raleigh, NC 27612, USA
| | - Raj Bhandari
- Delta Research Partners, LLC, 608 Grammant Street, Monroe, LA 71201, USA
| | - Gemma Clark
- ProStrakan Pharmaceuticals Ltd, Galabank Business Park, Galashiels TD1 1QH, UK
| | - Gregory V Collins
- Charlotte Clinical Research, 330 Billingsley Road, Charlotte, NC 28211, USA
| | - Julian Howell
- ProStrakan Pharmaceuticals Ltd, Galabank Business Park, Galashiels TD1 1QH, UK
| | - John E Pappas
- Kentucky Medical Research Center, 354 Waller Avenue, Suite 110, Lexington, KY 40504, USA
| | - Dennis S Riff
- Advanced Clinical Research Institute, 1211 West La Palma Ave. Suite 303, Anaheim, CA 92801, USA
| | - Michael Safdi
- Consultants for Clinical Research/GCGA Physicians, 2925 Vernon Place, Suite 200, Cincinnati, OH, USA
| | - Ann Yellowlees
- Quantics Consulting, Roslin BioCentre, Edinburgh, Scotland, UK
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Deng ZH, Zhao BM. Choice of treatments for anal fissure. Shijie Huaren Xiaohua Zazhi 2013; 21:1197-1204. [DOI: 10.11569/wcjd.v21.i13.1197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Chronic anal fissure (CAF) is one of the most common and painful proctologic diseases. Its treatment has long been discussed and several different therapeutic options have been proposed. The understanding of its pathophysiology has led to a progressive reduction of invasive and potentially invalidating treatments in favor of conservative treatment. Lateral internal sphincterotomy (LIS) is a surgical treatment that is considered the 'gold standard' therapy for CAF. It relieves CAF symptoms with a high rate of healing. The risk of incontinence after this procedure seems to be severe. Chemical sphincterotomy (CS) is safe, with the rapid relief of pain, no risk of surgery or anesthesia, but is a statistically less effective therapy for CAF than LIS. In recent years, fissurectomy coupled with CS has been demonstrated to be a satisfactory treatment for chronic anal fissure and an alternative to lateral sphincterotomy when conservative measures fail.
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Garg P, Garg M, Menon GR. Long-term continence disturbance after lateral internal sphincterotomy for chronic anal fissure: a systematic review and meta-analysis. Colorectal Dis 2013; 15:e104-17. [PMID: 23320551 DOI: 10.1111/codi.12108] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 09/13/2012] [Indexed: 02/08/2023]
Abstract
AIM A systematic review was carried out to analyse continence at 2 years or more after lateral internal sphincterotomy (LIS) for chronic anal fissure (CAF). METHOD PubMed, MEDLINE, Scopus, Embase, Ovid, SCI, Cochrane Central Register of Controlled Trials (CENTRAL) and Google Scholar were used to search the literature from 1969-2012 for studies reporting a follow-up of more than 2 years after LIS for CAF. The primary outcome parameter analysed was continence. The secondary outcome parameters included success rate, recurrence, incidence of postoperative abscess and fistula formation and patient satisfaction. RESULTS Of 324 studies screened, 22 (n = 4512) were included. The mean follow-up period ranged from 24-124 months. The overall continence disturbance rate was 14% (95% CI 0.09-0.2). Weighted analysis showed flatus incontinence in 9% (95% CI 0.04-0.16), soilage/seepage in 6% (95% CI 0.03-0.1), accidental defaecation in 0.91% (95% CI 0.003-0.02), incontinence to liquid stool in 0.67% (95% CI 0.001-0.02) and incontinence to solid stool in 0.83% (95% CI 0.003-0.02) of patients. CONCLUSION The long-term risk of continence disturbance after lateral internal sphincterotomy is significant. Randomized controlled trials with a long follow-up are needed to substantiate these findings and to redefine its role in the treatment of chronic anal fissure.
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Affiliation(s)
- P Garg
- Fortis Super Specialty Hospital, Mohali, India.
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Lateral internal sphincterotomy versus 0.25 % isosorbide dinitrate ointment for chronic anal fissures: a prospective randomized controlled trial. Surg Today 2012; 43:500-5. [DOI: 10.1007/s00595-012-0326-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 02/13/2012] [Indexed: 12/15/2022]
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Patti R, Territo V, Aiello P, Angelo GL, Di Vita G. Manometric Evaluation of Internal Anal Sphincter after Fissurectomy and Anoplasty for Chronic Anal Fissure: A Prospective Study. Am Surg 2012. [DOI: 10.1177/000313481207800531] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chronic anal fissure (CAF) is a common painful clinical disease and its pathogenesis remains poorly understood. After failure of pharmacological therapy, that is the first-line treatment, surgical sphincterotomy remains the treatment of choice although it is followed by a high rate of anal incontinence resulting from the sphincter damage; therefore, the research of a sphincter-saving surgical option has become an important goal. The aim of this study was to evaluate the manometric modifications and the incidence of anal incontinence after fissurectomy and anoplasty with advancement skin flap in patients affected by CAF with hypertonia of the internal anal sphincter (IAS). Fifteen patients affected by CAF with hypertonia of IAS, unresponsive to medical therapy, were enrolled. All subjects underwent fissurectomy and anoplasty with advancement skin flap. Anorectal manometry was performed preoperatively and after 6 and 12 months from surgery. Maximum resting pressure (MRP), maximum squeeze pressure (MSP), ultraslow wave activity (USWA), fissure healing, anal continence, and postoperative complications were recorded. All patients healed within 30 days from surgery. No intra- or postoperative complications were recorded except for a case of partial donor site break. No significant modifications of MSP were detected. Six months after surgery, MRP was higher with respect to healthy subjects but significantly reduced in comparison to baseline levels. At 12 months, it was higher have versus 6-month values but significantly lower versus preoperative values. USWA was significantly represented in patients with CAF versus healthy subject. Both at 6 and 12 months, they decreased significantly with respect to preoperative values without significant differences versus healthy subjects. Both at 6 and 12 months, anal continence did not differ with respect to preoperative time. The fissurectomy with anoplasty resulted in a high healing rate without surgical sequelae or anal incontinence. Also, it was able to reduce IAS pressure in the same manner as surgical sphincterotomy or forceful dilatation.
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Affiliation(s)
- Rosalia Patti
- General Surgery Unit, Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
| | - Valentina Territo
- General Surgery Unit, Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
| | - Paolo Aiello
- General Surgery Unit, Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
| | - Giuseppe Livio Angelo
- General Surgery Unit, Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
| | - Gaetano Di Vita
- General Surgery Unit, Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
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Arslan K, Erenoğlu B, Doğru O, Kökçam S, Turan E, Atay A. Effect of chronic anal fissure components on isosorbide dinitrate treatment. World J Surg 2012; 36:2225-9. [PMID: 22526048 DOI: 10.1007/s00268-012-1604-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Chronic anal fissure is diagnosed in the presence of persistent symptoms: The classic triad includes a linear mucosal tear exposing the internal sphincter fibers, hypertrophied anal papilla, and a sentinel skin tag. Thus, chronic anal fissure can be divided into three components: the fissure itself; hypertrophied anal papilla; the sentinel skin tag. Not every chronic anal fissure has all three components; some have two components, and others present with only a persistent fissure. The success rate of medical treatment for chronic anal fissure is reported as 42-86 %. In this study, we intended to observe the effect of said components on healing with isosorbide dinitrate treatment. METHODS A total of 105 patients with chronic anal fissures were admitted and were divided into three groups. Patients in group I had a single component (only the fissure with a linear mucosal tear exposing the internal sphincter fibers); group II had two components (skin tag or hypertrophied papilla in addition to the fissure); group III had all three components (fissure, skin tag, hypertrophied papilla). Isosorbide dinitrate 0.25 % was applied three times a day. RESULTS The success rates in the study groups were 93, 74, and 64 %, respectively. The success rate was significantly higher for group I than for groups II and III. CONCLUSIONS Chronic anal fissure components should be considered when evaluating the success rates of studies reporting the results of various medical treatments. The number of components seems to be an important factor that affects the results of isosorbide dinitrate treatment.
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Affiliation(s)
- K Arslan
- Department of General Surgery, Konya Training and Research Hospital, Konya 42100, Turkey.
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Patti R, Guercio G, Territo V, Aiello P, Angelo GL, Di Vita G. Advancement flap in the management of chronic anal fissure: a prospective study. Updates Surg 2012; 64:101-6. [DOI: 10.1007/s13304-012-0147-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2011] [Accepted: 03/14/2012] [Indexed: 01/14/2023]
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Valizadeh N, Jalaly NY, Hassanzadeh M, Kamani F, Dadvar Z, Azizi S, Salehimarzijarani B. Botulinum toxin injection versus lateral internal sphincterotomy for the treatment of chronic anal fissure: randomized prospective controlled trial. Langenbecks Arch Surg 2012; 397:1093-8. [PMID: 22430300 DOI: 10.1007/s00423-012-0948-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Accepted: 03/06/2012] [Indexed: 12/16/2022]
Abstract
PURPOSE Lateral internal sphincterotomy has been the gold standard treatment for chronic anal fissure, but it still carries the risk of permanent damage of the anal sphincter, which has led to the implementation of alternative treatment like botulinum toxin injection. The aim of this randomized prospective controlled trial was to compare the efficacy and morbidity of botulinum toxin injection and lateral internal sphincterotomy in the treatment of chronic anal fissure. METHODS Fifty consecutive adults with chronic anal fissure were randomly treated with either lateral internal sphincterotomy or botulinum toxin (BT) injection with 50 U BT into the internal sphincter. The complications, healing and recurrence rate, and incontinence score were assessed 2, 3, 6, 12 months after the procedure. RESULTS Inspection at the 2-month visit revealed complete healing of the fissure in 11 (44 %) of the patients in the BT group and 22 (88 %) of the patients in the lateral internal sphincterotomy (LIS) group (p = 0.001). At the 3-month visit, there was no significant difference between the two groups in healing. The overall recurrence rate after 6 months in the BT group was higher than in the LIS group (p < 0.05). In the 3-month follow-up, the LIS group had a higher rate of anal incontinence compared to the BT group (p < 0.05). The final percentage of incontinence was 4 % in the LIS group (p > 0.05). CONCLUSIONS The treatment of chronic anal fissure must be individualized depending on the different clinical profiles of patients. Botulinum toxin injection has a higher recurrence rate than LIS, and LIS provides rapid and permanent recovery. However, LIS carries a higher risk of anal incontinence in patients.
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Affiliation(s)
- Neda Valizadeh
- Department of General Surgery, Ayatollah Taleghani Hospital, Shahid Beheshti University of Medical Sciences, PO Box 1545633319, Tehran, Iran
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36
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Pescatori M. Anal Fissure. PREVENTION AND TREATMENT OF COMPLICATIONS IN PROCTOLOGICAL SURGERY 2012:1-14. [DOI: 10.1007/978-88-470-2077-1_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Altomare DF, Binda GA, Canuti S, Landolfi V, Trompetto M, Villani RD. The management of patients with primary chronic anal fissure: a position paper. Tech Coloproctol 2011; 15:135-41. [PMID: 21538013 PMCID: PMC3099002 DOI: 10.1007/s10151-011-0683-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2010] [Accepted: 03/15/2011] [Indexed: 12/26/2022]
Abstract
Anal fissure is one of the most common and painful proctologic diseases. Its treatment has long been discussed and several different therapeutic options have been proposed. In the last decades, the understanding of its pathophysiology has led to a progressive reduction of invasive and potentially invalidating treatments in favor of conservative treatment based on anal sphincter muscle relaxation. Despite some systematic reviews and an American position statement, there is ongoing debate about the best treatment for anal fissure. This review is aimed at identifying the best treatment option drawing on evidence-based medicine and on the expert advice of 6 colorectal surgeons with extensive experience in this field in order to produce an Italian position statement for anal fissures. While there is little chance of a cure with conservative behavioral therapy, medical treatment with calcium channel blockers, diltiazem and nifepidine or glyceryl trinitrate, had a considerable success rate ranging from 50 to 90%. Use of 0.4% glyceryl trinitrate in standardized fashion seems to have the best results despite a higher percentage of headache, while the use of botulinum toxin had inconsistent results. Nonresponding patients should undergo lateral internal sphincterotomy. The risk of incontinence after this procedure seems to have been overemphasized in the past. Only a carefully selected group of patients, without anal hypertonia, could benefit from anoplasty.
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Affiliation(s)
- D F Altomare
- Department of Emergency and Organ Transplantation, University Aldo Moro, Policlinico, piazza G Cesare 11, 70124, Bari, Italy.
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Mucosal Advancement Flap Anoplasty for Chronic Anal Fissure Resistant to Conservative Therapy. World J Surg 2011; 35:900-4. [DOI: 10.1007/s00268-011-0959-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pescatori M. Ragade anale. PREVENZIONE E TRATTAMENTO DELLE COMPLICANZE IN CHIRURGIA PROCTOLOGICA 2011:1-14. [DOI: 10.1007/978-88-470-2062-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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40
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Patti R, Famà F, Barrera T, Migliore G, Di Vita G. Fissurectomy and anal advancement flap for anterior chronic anal fissure without hypertonia of the internal anal sphincter in females. Colorectal Dis 2010; 12:1127-30. [PMID: 19843117 DOI: 10.1111/j.1463-1318.2009.02068.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
AIM Lateral internal sphincterotomy is considered the surgical treatment of choice for chronic anal fissure after failure of medical therapy but it risks continence. The aim of the study was to evaluate fissurectomy with advancement flap for anterior chronic anal fissure (CAAF) resistant to medical therapy. METHOD Sixteen women with CAAF without hypertonia of the internal anal sphincter, unresponsive to previous medical treatment, were included in the study. Absence of hypertonia was defined as a maximum anal resting pressure (MRP) of less than 85 mmHg. All patients underwent fissurectomy with an advancement skin flap. RESULTS Complete healing occurred in all patients within 30 days. The intensity and the duration of pain after defecation reduced from the first postoperative defecation. MRP before surgery and at 6 months showed no significant difference. At 1 month, four patients experienced a continence disturbance, two of whom had it preoperatively. At 12 months, two (12.5%) patients continued to experience a continence disturbance. CONCLUSION Fissurectomy with skin advancement flap resulted in complete healing and full relief of symptoms in all patients. There was a low incidence of continence disturbance.
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Affiliation(s)
- R Patti
- Division of General Surgery, Department of Surgical and Oncological Science, University of Palermo, Palermo, Italy
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41
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Poh A, Tan KY, Seow-Choen F. Innovations in chronic anal fissure treatment: A systematic review. World J Gastrointest Surg 2010; 2:231-41. [PMID: 21160880 PMCID: PMC2999245 DOI: 10.4240/wjgs.v2.i7.231] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 07/15/2010] [Accepted: 07/22/2010] [Indexed: 02/07/2023] Open
Abstract
A chronic anal fissure is a common perianal condition. This review aims to evaluate both existing and new therapies in the treatment of chronic fissures. Pharmacological therapies such as glyceryl trinitrate (GTN), Diltiazem ointment and Botulinum toxin provide a relatively non-invasive option, but with higher recurrence rates. Lateral sphincterotomy remains the gold standard for treatment. Anal dilatation has no role in treatment. New therapies include perineal support devices, Gonyautoxin injection, fissurectomy, fissurotomy, sphincterolysis, and flap procedures. Further research is required comparing these new therapies with existing established therapies. This paper recommends initial pharmacological therapy with GTN or Diltiazem ointment with Botulinum toxin as a possible second line pharmacological therapy. Perineal support may offer a new dimension in improving healing rates. Lateral sphincterotomy should be offered if pharmacological therapy fails. New therapies are not suitable as first line treatments, though they can be considered if conventional treatment fails.
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Affiliation(s)
- Aaron Poh
- Aaron Poh, Kok-Yang Tan, Department of Surgery, Khoo Teck Puat Hospital, Singapore 768828, Singapore
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Rattan S. 3-Hydroxymethyl coenzyme A reductase inhibition attenuates spontaneous smooth muscle tone via RhoA/ROCK pathway regulated by RhoA prenylation. Am J Physiol Gastrointest Liver Physiol 2010; 298:G962-9. [PMID: 20378830 PMCID: PMC3774330 DOI: 10.1152/ajpgi.00034.2010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
RhoA prenylation may play an important step in the translocation of RhoA in the basal internal anal sphincter (IAS) smooth muscle tone. Statins inhibit downstream posttranslational RhoA prenylation by 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibition (HMGCRI). The role of statins in relation to RhoA prenylation in the pathophysiology of the spontaneously tonic smooth muscle has not been investigated. In the present studies, we determined the effect of classical HMGCRI simvastatin on the basal IAS tone and RhoA prenylation and in the levels of RhoA/Rho kinase (ROCK) in the cytosolic vs. membrane fractions of the smooth muscle. Simvastatin produced concentration-dependent decrease in the IAS tone (via direct actions at the smooth muscle cells). The decrease in the IAS tone by simvastatin was associated with the decrease in the prenylation of RhoA, as well as RhoA/ROCK in the membrane fractions of the IAS, in the basal state. The inhibitory effects of the HMGCRI were completely reversible by geranylgeranyltransferase substrate geranylgeranyl pyrophosphate. Relaxation of the IAS smooth muscle via HMGCRI simvastatin is mediated via the downstream decrease in the levels of RhoA prenylation and ROCK activity. Studies support the concept that RhoA prenylation leading to RhoA/ROCK translocation followed by activation is important for the basal tone in the IAS. Data suggest that the role of HMG-CoA reductase may go beyond cholesterol biosynthesis, such as the regulation of the smooth muscle tone. The studies have important implications in the pathophysiological mechanisms and in the novel therapeutic approaches for anorectal motility disorders.
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Affiliation(s)
- Satish Rattan
- 901 College, Dept. of Medicine, Div. of Gastroenterology & Hepatology, 1025 Walnut St., Philadelphia, PA 19107, USA.
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Conservative and surgical treatment of chronic anal fissure: prospective longer term results. J Gastrointest Surg 2010; 14:773-80. [PMID: 20195915 DOI: 10.1007/s11605-010-1154-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2009] [Accepted: 01/04/2010] [Indexed: 01/31/2023]
Abstract
INTRODUCTION The aim of this prospective study was to assess the efficacy of different medical treatments and surgery in the treatment of chronic anal fissure (CAF). PATIENTS AND METHODS From January 2004 to March 2009, 311 patients with typical CAF completed the study. All patients were initially treated with 0.2% nitroglycerin ointment (GTN) or anal dilators (DIL) for 8 weeks. If no improvement was observed after 8 weeks, the patients were assigned to the other treatment or a combination of the two. Persisting symptoms after 12 weeks or recurrence were indications for either botulinum toxin injection into the internal sphincter and fissurectomy or lateral internal sphincterotomy (LIS). During the follow-up (29 +/- 16 months), healing rates, symptoms, incontinence scores, and therapy adverse effects were prospectively recorded. RESULTS Overall healing rates were 64.6% and 94% after GTN/DIL or BTX/LIS. Healing rate after GTN or DIL after 12 weeks course were 54.5% and 61.5%, respectively. Fifty-four patients (17.4%) responded to further medical therapy. One hundred two patients (32.8%) underwent BTX or LIS. Healing rate after BTX was 83.3% and overall healing after LIS group was 98.7% with no definitive incontinence. CONCLUSION In conclusion, although LIS is far more effective than medical treatments, BTX injection/fissurectomy as first line treatment may significantly increase the healing rate while avoiding any risk of incontinence.
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De Bruin AFJ, Schouten SB, de Kort PPS, Gosselink MP, van der Harst E. The impact of chronic smoking on rectal mucosal blood flow. Tech Coloproctol 2010; 13:269-72. [PMID: 19730785 DOI: 10.1007/s10151-009-0529-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 08/17/2009] [Indexed: 01/12/2023]
Abstract
BACKGROUND Chronic smoking adversely affects peripheral vasculature. The aim of the present study was to investigate the effect of chronic cigarette smoking on rectal microvascular blood flow. METHODS Rectal mucosal blood flow (MBF) was measured in 80 subjects (44 smokers and 36 non-smokers). The MBF was measured in the four quadrants of the rectum by laser Doppler flowmetry. RESULTS Rectal perfusion was found to be significantly lower in posterior midline compared to the other sites. In chronic smokers the observed MBF measured at the posterior and ventral sites was significantly lower compared to non-smokers (P = 0.04 and P = 0.03, respectively). CONCLUSIONS Our results suggest that rectal mucosal blood flow is reduced in chronic smokers.
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Affiliation(s)
- A F J De Bruin
- Division of Colon and Rectal surgery, Department of Surgery, Maasstad Ziekenhuis, Brede Hilledijk 315, 3075 EA Rotterdam, The Netherlands.
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Lolli P, Malleo G, Rigotti G. Treatment of chronic anal fissures and associated stenosis by autologous adipose tissue transplant: a pilot study. Dis Colon Rectum 2010; 53:460-6. [PMID: 20305447 DOI: 10.1007/dcr.0b013e3181b726b2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE A substantial body of recent evidence suggests that autologous adipose tissue transplant promotes healing in different lesions associated with local ischemia. We report the outcome of lipoaspirate transplant in hard-to-treat chronic anal fissures. METHODS Eight patients were included in this pilot study, 5 with single and 3 with multiple fissures. All had intense anal pain and had previously undergone proctologic surgery, with internal sphincterotomy performed in 6 patients. Severe stenosis was present in 3 patients and moderate stenosis in 2. Preoperative assessment included anoscopy, anorectal manometry, colonoscopy, and microbiological tests to exclude inflammatory, neoplastic, or infectious diseases. Surgical treatment consisted of transplant of purified autologous fat retrieved from the hypogastrium. Follow-up was scheduled after 1 week, at 2, 3, 6, and 12 months, and thereafter on a yearly basis. RESULTS All of the patients were discharged several hours after surgery. No early postoperative complication was observed. Complete healing and pain remission were achieved in 6 patients (75%), 4 of whom were treated in a single session, whereas 2 patients required 2 and 3 sessions. Anal stenosis was resolved in 4 of 5 patients (80%). The therapy was unsuccessful in 2 patients (25%). Mean follow-up was 18 months (range, 3-36 months). CONCLUSION Perianal autologous fat transplant can be safely performed for the treatment of complex anal fissures. It is well tolerated and offers encouraging results, although further research is warranted because of the small number of patients treated and the relatively short follow-up time.
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Affiliation(s)
- Paola Lolli
- Department of Surgical and Anesthesiological Sciences, University of Verona, Verona, Italy.
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Fissurectomy combined with anoplasty and injection of botulinum toxin in treatment of anterior chronic anal fissure with hypertonia of internal anal sphincter: a pilot study. Tech Coloproctol 2010; 14:31-6. [PMID: 20127381 DOI: 10.1007/s10151-009-0562-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Accepted: 12/21/2009] [Indexed: 12/17/2022]
Abstract
BACKGROUND In patients affected by anterior chronic anal fissure (CAAF) with hypertonia of the internal anal sphincter (IAS), the role of IAS hypertonia remains unclear. The aim of this study was to evaluate the efficacy of fissurectomy combined with advancement flap and IAS injection of botulinum toxin in healing the CAAF with hypertonia of IAS resistant to medical therapy. METHODS Ten consecutive patients were enrolled. Anorectal manometry was performed preoperatively and at 6 months. CAAF with hypertonia was defined as those associated with maximum resting pressure (MRP) values higher than 85 mmHg. All patients underwent fissurectomy and anoplasty with advancement skin flap combined with the intrasphincter injection of 30 UI of botulinum toxin. Complete healing, MRP changes, relief of symptoms and immediate and long-term complications were recorded. RESULTS Complete healing was observed in all patients within 30 days of the operation. The intensity and duration of pain post-defecation was reduced significantly starting from the first defecation. In all subjects, the preoperative MRP values were significantly reduced at 6 months. One month after surgery, three patients reported anal incontinence, two of them had complained preoperatively. The only postoperative complications were minor. CONCLUSIONS Fissurectomy combined with advancement flap and intrasphincter injection of botulinum toxin results in complete healing, significant MRP reduction and full relief of symptom in all patients, thus it represents a valid procedure in preventing the occurrence of anal incontinence.
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Patti R, Famà F, Tornambè A, Restivo M, Di Vita G. Early Results of Fissurectomy and Advancement Flap for Resistant Chronic Anal Fissure without Hypertonia of the Internal Anal Sphincter. Am Surg 2010. [DOI: 10.1177/000313481007600217] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to assess the efficacy of fissurectomy with skin advancement flap in healing chronic anal fissures without hypertonia of the internal anal sphincter. Twenty-six consecutive patients who failed healing after well-practiced topical medical therapy were enrolled. Anorectal manometry was performed preoperative and 6 months postoperatively. All patients were treated with fissurectomy and advancement flap through healthy skin tissue. All patients healed completely within 30 days from operation. The intensity and the duration of pain post-defecation was reduced significantly with respect to the preoperative values starting from the first defecation. One patient suffered urinary retention, two patients suffered infections, and two partial breakdowns were recorded. At 6 months the maximum resting pressure values were similar to those were detected preoperatively. One month after surgery, anal incontinence was reported in seven patients, four of whom complained about it preoperatively. At 12 months, only three subjects reported incontinence. No patients needed reoperation and no recurrences were detected. The fissurectomy, in combination with advancement flap, is a safe sphincter-saving procedure for the treatment of chronic anal fissures without hypertonia of internal anal sphincter that fails medical conservative treatment.
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Affiliation(s)
- Rosalia Patti
- Department of Surgical and Oncological Science, Division of General Surgery, University of Palermo, Palermo, Italy
| | - Fausto Famà
- Department of Surgical and Oncological Science, Division of General Surgery, University of Palermo, Palermo, Italy
| | - Antonino Tornambè
- Department of Surgical and Oncological Science, Division of General Surgery, University of Palermo, Palermo, Italy
| | - Margherita Restivo
- Department of Surgical and Oncological Science, Division of General Surgery, University of Palermo, Palermo, Italy
| | - Gaetano Di Vita
- Department of Surgical and Oncological Science, Division of General Surgery, University of Palermo, Palermo, Italy
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Squires J. Anal fissures associated with targeted therapies in ovarian cancer. Clin J Oncol Nurs 2009; 13:638-42. [PMID: 19948462 DOI: 10.1188/09.cjon.638-642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although ovarian cancer remains a leading cause of gynecologic cancer death, targeted therapies are improving patient outcomes. Anal fissures are a side effect of targeted therapies that can disrupt or stop treatment regimens. Diagnosis and management of anal fissures by advanced practice nurses are crucial for maintaining the quality of life of patients with ovarian cancer.
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Affiliation(s)
- Jennifer Squires
- Medical Oncology Branch of the National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Glyceryl trinitrate ointment (0.25%) and anal cryothermal dilators in the treatment of chronic anal fissures. J Gastrointest Surg 2009; 13:1283-91. [PMID: 19367435 DOI: 10.1007/s11605-009-0889-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2009] [Accepted: 03/29/2009] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Chronic anal fissure is a common benign disorder; for this condition, lateral internal sphincterotomy is the "gold standard" of treatment. Alternative medical treatments have not proven to be as effective as left lateral internal sphincterotomy. AIM This randomized trial was designed to compare the use of 0.25% glyceryl trinitrate ointment and anal cryothermal dilators with the use of 0.4% glyceryl trinitrate ointment alone in the treatment of chronic anal fissures. METHODS Between 1 June 2006 and 31 December 2007, 60 consecutive patients who were suffering from chronic anal fissures were randomized into two groups. The patients in group A (n = 30) were treated with 0.25% glyceryl trinitrate ointment and anal cryothermal dilators twice daily, and those in group B (n = 30) were treated with 0.4% glyceryl trinitrate ointment alone twice daily. The treatment was administered to the patients in each group for 6 weeks, and all patients were examined 7 weeks after the start of the trial. RESULTS Prior to treatment, the symptoms and the measurements of anal pressure were similar in both groups. At 7 weeks, the maximum resting pressure was significantly lower in group A (P < 0.05), in which 86.6% of the patients were asymptomatic in comparison with 73.3% of the patients in group B. After 1 year of follow-up, 25 patients (83.3%) in group A and 18 patients (60%) in group B presented no recurrence of symptoms (P < 0.05) CONCLUSIONS Treatment of chronic anal fissures with 0.25% glyceryl trinitrate ointment and anal cryothermal dilators was more effective than the administration of 0.4% glyceryl trinitrate ointment alone.
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Soll C, Dindo D, Hahnloser D. Combined fissurectomy and botulinum toxin injection. A new therapeutic approach for chronic anal fissures. ACTA ACUST UNITED AC 2008; 32:667-70. [PMID: 18468825 DOI: 10.1016/j.gcb.2008.03.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- C Soll
- Department of Visceral and Transplantation Surgery, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
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