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Gallo G, Lori E, Goglia M, Dezi A, Picciariello A, Grossi U. Effectiveness of preoperative micronized purified flavonoid fraction treatment and sucralfate-based rectal ointment on hemorrhoidal disease: A case-matched analysis. Tech Coloproctol 2024; 28:126. [PMID: 39287845 PMCID: PMC11408642 DOI: 10.1007/s10151-024-02998-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 08/09/2024] [Indexed: 09/19/2024]
Abstract
BACKGROUND Hemorrhoidal disease (HD) significantly impacts patients' quality of life. This study aimed to evaluate the effectiveness of preoperative treatment with the micronized purified flavonoid fraction (MPFF) and a sucralfate-based rectal ointment in managing HD symptoms and reducing interventions. METHODS A prospective quasi-experimental study including consecutive cases and controls matched on the basis of sex was performed in a tertiary referral center. Cases received systemic and local therapy for HD, consisting of a rectal ointment containing 3% sucralfate and herbal extracts plus MPFF, in addition to conservative therapy, while controls received conservative therapy alone. The hemorrhoidal disease symptom score (HDSS), the Short Health Scale for HD (SHS-HD) score, and the Vaizey Incontinence Score were used to evaluate symptoms severity and their impact on quality of life and continence. Intervention requirements were assessed at baseline (T0) and after 60 days of treatment (T1). RESULTS Between January and December 2023, a total of 98 patients were assessed for eligibility. After exclusions, 56 patients were enrolled, with 28 in each group. Significant improvements were observed in HD symptom scores from T0 to T1: the intervention group showed a mean change in HDSS of -9 [95% confidence interval (CI) -10 to -8], and the control group showed no significant change (mean change of 0; 95% CI -1.5 to 0). At T1, a higher proportion of patients in the intervention group underwent less invasive interventions compared with controls (18% versus 11%). Age, treatment group, and baseline symptom severity significantly predicted post-treatment symptom scores. CONCLUSIONS In our study the preoperative treatment with MPFF and a sucralfate-based rectal ointment demonstrated clinical benefits in managing HD symptoms and reducing interventions. Further prospective trials are warranted to confirm and explore additional therapeutic strategies.
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Affiliation(s)
- G Gallo
- Department of Surgery, Sapienza University of Rome, Rome, Italy.
| | - E Lori
- Department of Surgery, Sapienza University of Rome, Rome, Italy
| | - M Goglia
- Ph.D. School in Translational Medicine and Oncology, Department of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - A Dezi
- Department of Precision and Regenerative Medicine and Ionian Area, University Aldo Moro of Bari, Bari, Italy
| | - A Picciariello
- Department of Experimental Medicine, University of Salento, Lecce, Italy.
| | - U Grossi
- Department of Surgery, Oncology and Gastroenterology-DiSCOG, University of Padua, Padua, Italy
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Feo CF, Ninniri C, Tanda C, Deiana G, Porcu A. Open Hemorrhoidectomy With Ligasure™ Under Local or Spinal Anesthesia: A Comparative Study. Am Surg 2023; 89:671-675. [PMID: 34382441 DOI: 10.1177/00031348211038590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND There is increasing evidence that many anorectal surgical procedures may be performed under local anesthesia. The aim of the present study was to evaluate the safety and efficacy of local anesthesia in the outpatient clinic vs spinal anesthesia in the operating room for open hemorrhoidectomy. METHODS Sixty-two patients with grade III or IV hemorrhoids underwent open hemorrhoidectomy with LigaSure™ between 2018 and 2020. Of them, 32 procedures were performed in the operating room under spinal anesthesia with hyperbaric bupivacaine and other 30 procedures were undertaken in the outpatient clinic under local anesthesia with ropivacaine. RESULTS There were no significant differences regarding age, gender, American Society of Anesthesiologists class, and Goligher's grade in between groups. No significant differences were observed in postoperative pain score (P = .85), perioperative complications (P = .51), and reoperation rate (P = .96). No recurrences and no differences in patients' satisfaction degree (P = .76) were documented at long-term follow-up in both study groups. DISCUSSION Our results suggest that open hemorrhoidectomy with LigaSure™ performed in selected patients under local anesthesia in the outpatient clinic is a well-tolerated, safe, and effective procedure.
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Affiliation(s)
- Claudio F Feo
- Unit of General Surgery 2, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Chiara Ninniri
- Unit of General Surgery 2, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Cinzia Tanda
- Unit of General Surgery 2, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Giulia Deiana
- Unit of General Surgery 2, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - Alberto Porcu
- Unit of General Surgery 2, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
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Grossi U, Romano M, Rossi S, Gallo G, Picciariello A, Felice C, Trojan D, Montagner G, Zanus G. Anal Fistula Human Amniotic Membrane Endosealing (F-HAME): A Proof of Concept Study. Front Surg 2022; 9:869923. [PMID: 35419402 PMCID: PMC8995564 DOI: 10.3389/fsurg.2022.869923] [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] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/08/2022] [Indexed: 12/14/2022] Open
Abstract
The treatment of cryptoglandular anal fistula (AF) is often a challenge for surgeons. Several sphincter-saving procedures have been described as an alternative to fistulotomy, with the common goal of promoting healing and preserve anal continence. The aim of this proof of concept study was to assess the outcomes of human amniotic membrane (HAM) implantation in cryptoglandular transphincteric AF. Two consecutive female were recruited. The primary outcome was clinical healing at 6 months. Secondary outcomes were ultrasonographic healing, complications and reinterventions, AF symptoms, fecal incontinence, psychological impact of treatment, recurrence, development of additional AF, patient satisfaction, and quality of life, as measured using validated questionnaires. Both patients (40 and 54-year-old) previously underwent incision and drainage of anal abscess with concomitant seton placement. HAM implantation was performed as a day case under local anesthesia. No intra- or post-procedural complications occurred. Clinical and radiological healing were not achieved at 6 months. However, the external outlet discharge diminished through time, with sustained improvements in quality of life. Clinical healing occurred at 7 months in both patients. Psychological impact of treatment and patient satisfaction were overall good, with improvements in the PHQ-9, GAD-7, and Short Assessment of Patients Satisfaction. HAM implantation is safe and improves patients' quality of life, progressively leading to clinical healing. Future studies are needed to assess its safety in other etiology of AF.
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Affiliation(s)
- Ugo Grossi
- II Surgery Unit, Regional Hospital Treviso, Treviso, Italy
- Department of Surgery, Oncology and Gastroenterology - DISCOG, University of Padua, Padua, Italy
| | | | - Serena Rossi
- Department of Surgery, Oncology and Gastroenterology - DISCOG, University of Padua, Padua, Italy
| | - Gaetano Gallo
- Department of Medicine, Surgery and Neurosciences, Unit of General Surgery and Surgical Oncology, University of Siena, Siena, Italy
| | - Arcangelo Picciariello
- Surgical Unit ‘M. Rubino', Department of Emergency and Organ Transplantation, University ‘Aldo Moro of Bari', Bari, Italy
| | - Carla Felice
- Department of Medicine - DIMED, University of Padua, Padua, Italy
| | | | | | - Giacomo Zanus
- II Surgery Unit, Regional Hospital Treviso, Treviso, Italy
- Department of Surgery, Oncology and Gastroenterology - DISCOG, University of Padua, Padua, Italy
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Pietroletti R, Gallo G, Muselli M, Martinisi G, Cofini V. Proctologic Surgery Prioritization After the Lockdown: Development of a Scoring System. Front Surg 2022; 8:798405. [PMID: 35155551 PMCID: PMC8825474 DOI: 10.3389/fsurg.2021.798405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/27/2021] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION The coronavirus disease 2019 (COVID-19) pandemic has shown a very critical impact on surgical procedures all over the world. Italy faced the deepest impact from the beginning of March 2020. Elective operations, screening, and follow-up visits had been suspended giving priority to urgent and oncologic surgery. PATIENTS An observational study was carried out in the Surgical Coloproctology Unit of the Val Vibrata Hospital on 152 patients awaiting a proctological surgical treatment during the national lockdown. METHODS In order to monitor the health status of patients and reschedule postlockdown surgical activities, patients were interviewed by telephone submitting a questionnaire based upon the judgment of an expert senior clinician. Following the interview, we calculated a severity index for all the proctologic diseases (hemorrhoidal disease, anal fissure, anal sepsis, slow transit or obstructed defecation, incontinence), classifying the patients according to the score. Mean age of patients was 53 (±16) years, and there were 84 males (55.3%) and 68 females (44.7%). In total, 31% of our patients suffered from anal fissure, 28% suffered from hemorrhoidal disease, 14% suffered from anal sepsis, and the remaining patients suffered from benign anorectal diseases to a lesser extent. RESULTS A total of 137 patients were available and divided into three classes: priority surgery (PS) with 49 patients (36.2%), deferrable surgery (DS) with 25 patients (18.1%), and long-term surgery (L-TS) with 63 patients (45.6%). There was a significant correlation between the perceived health status reported during the interview and the priority class index (Spearman's rho = 0.97, p < 0.001).Differences related to age and sex were not significant (F-test = 0.43, p = 0.653; chi-squared test = 0.693, p = 0.707). 49 patients in class PS needed a prompt surgical treatment, while 24 patients allocated in class DS and 65 patients allocated in class L-TS could wait for a new ride plan for surgery. CONCLUSION New tools, such as this simple score obtained during the telephone interview, can be useful for prioritization of patients on the waiting list for surgical coloproctology after the lockdown without further clinical examination and hospital access.
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Affiliation(s)
- Renato Pietroletti
- Surgical Coloproctology Hospital Val Vibrata, Sant'Omero (TE) and Department of Clinical and Biotechnological Sciences University of L'Aquila, L'Aquila, Italy
| | - Gaetano Gallo
- Department of Surgery, University of Catanzaro “Magna Grecia”, Catanzaro, Italy
| | - Mario Muselli
- Medical Statistic, Department of Life, Health and Environmental Science, University of L'Aquila, L'Aquila, Italy
| | - Giovanbattista Martinisi
- Surgical Coloproctology Hospital Val Vibrata, Sant'Omero (TE) and Department of Clinical and Biotechnological Sciences University of L'Aquila, L'Aquila, Italy
| | - Vincenza Cofini
- Medical Statistic, Department of Life, Health and Environmental Science, University of L'Aquila, L'Aquila, Italy
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Giani I, Gallo G, Grossi U, Tanda C, Linari C, Elbetti C. The Impact of COVID-19 pandemic on a tertiary referral proctology center: no one should be left behind. Minerva Surg 2021; 77:30-34. [PMID: 34160175 DOI: 10.23736/s2724-5691.21.08897-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) has disrupted healthcare delivery. We aimed to describe a novel strategy to mitigate the impact of COVID-19 pandemic on a tertiary referral proctology center during the first wave of infection in Italy. METHODS All patients booked appointments at the Proctology Unit between March 9th and May 4th 2020 were identified. Patients booked for a first visit underwent a structured remote consultation. Patients with perianal or sacrococcygeal abscesses, major anorectal bleeding, incoercible anal pain and red flags for malignancy were labelled as 'non-deferrable'. A flowchart was designed to comply with adequate assistance of proctologic patients. Demographics, clinical data and outcomes of in-office procedures were collected. RESULTS On a total of 548 booked visits, 198 (36.1%) were cancelled before remote consultation. Of the remaining 350, 112 (32.0%) attended a follow-up visit. Among 238 (68.0%) patients undergoing remote consultation, 88 (25.1%) were deemed 'deferrable' and 148 (42.3%) 'nondeferrable'. 2 (0.6%) were hospitalized for COVID-19 while waiting for an outpatient visit. 25/88 (28.4%) deferrable patients cancelled their appointment as felt no longer necessary. A total of 45/148 (30.4%) non deferrable patients (mean age, 46 years; 31% females) underwent in-office procedures, most often related to anal abscess and/or fistula (48.9%). Final diagnosis of malignancy occurred in 4 cases. A 55% increase in the number of in-office procedures was noted compared to the previous year. None of the attending patients nor staff members resulted COVID-19 positive during the study period. CONCLUSIONS Despite the uncertainties accompanying the use of remote consultations in proctology, the results of this study may inform the development of strategies for restructuring activities in response to future emergencies of this magnitude.
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Affiliation(s)
- Iacopo Giani
- SOSD Proctologia USL Toscana Centro, Florence, Italy
| | - Gaetano Gallo
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - Ugo Grossi
- IV Surgery Unit, Regional Hospital Treviso, DISCOG, University of Padua, Padua, Italy -
| | - Cinzia Tanda
- SOSD Proctologia USL Toscana Centro, Florence, Italy
| | - Chiara Linari
- SOSD Proctologia USL Toscana Centro, Florence, Italy
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Gallo G, Sturiale A, De Simone V, Di Tanna GL, Giani I, Grossi U. A worldwide survey on proctological practice during COVID-19 lockdown (ProctoLock 2020): a cross-sectional analysis. Colorectal Dis 2021; 23:246-264. [PMID: 33025724 PMCID: PMC7675501 DOI: 10.1111/codi.15394] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/25/2020] [Accepted: 09/26/2020] [Indexed: 12/13/2022]
Abstract
AIM Proctology is one of the surgical specialties that has suffered the most during COVID-19 pandemic. Using a cross-sectional non-incentivised World Wide Web survey, we aimed to snapshot the current status of proctological practice in six world regions. METHOD Surgeons affiliated to renowned scientific societies with an interest in coloproctology were invited to join the survey. Members of the ProctoLock Working Group enhanced recruitment by direct invitation. The predictive power of respondents' and hospitals' demographics on the change of status of surgical and outpatient activities was calculated. RESULTS Respondents (n = 1050) were mostly men (79%), with a mean age of 46.9 years, at consultant level (79%), practising in academic hospitals (53%) offering a dedicated proctology service (68%). A total of 119 (11%) tested positive for SARS-CoV-2. The majority (54%) came from Europe. Participants from Asia reported a higher proportion of unaltered practice (17%), while those from Europe had the highest proportion of fully stopped practice (20%). The likelihood of ongoing surgical practice was higher in men (OR 1.54, 95% CI 1.13-2.09; P = 0.006), in those reporting readily availability of personal protective equipment (PPE) (OR 1.40, 1.08-1.42; P = 0.012) and in centres that were partially or not at all involved in COVID-19 care (OR 2.95, 2.14-4.09; P < 0.001). This chance decreased by 2% per year of respondent's age (P = 0.001). CONCLUSION Several factors including different screening policies and resource capacity affected the current status of proctological practice. This information may help health authorities to formulate effective preventive strategies to limit curtailment of care of these patients during the pandemic.
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Affiliation(s)
- Gaetano Gallo
- Department of Medical and Surgical SciencesUniversity of CatanzaroCatanzaroItaly
| | - Alessandro Sturiale
- Proctology and Pelvic Floor Clinical CentreCisanello University HospitalPisaItaly
| | - Veronica De Simone
- Proctology UnitFondazione Policlinico Universitario ‘A. Gemelli’ IRCCSRomaItaly
| | - Gian Luca Di Tanna
- The George Institute for Global HealthFaculty of MedicineUniversity of New South WalesSydneyNSWAustralia
| | | | - Ugo Grossi
- IV Surgery UnitTreviso Regional HospitalUniversity of PaduaPaduaItaly
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7
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Gallo G, Sturiale A, De Simone V, Mancini S, Di Tanna GL, Milito G, Bianco F, Perinotti R, Giani I, Grossi U, Aiello D, Bianco F, Bondurri A, Gallo G, La Torre M, Milito G, Perinotti R, Pietroletti R, Serventi A, Fiorino M, De Simone V, Grossi U, Manigrasso M, Sturiale A, Zaffaroni G, Boffi F, Bellato V, Cantarella F, Deidda S, Marino F, Martellucci J, Milone M, Picciariello A, Bravo AM, Vigorita V, Cunha MF, Leventoglu S, Garmanova T, Tsarkov P, El-Hussuna A, Frontali A, Ioannidis A, Bislenghi G, Shalaby M, Porzio FC, Wu J, Zimmerman D, Elbetti C, Mayol J, Naldini G, Trompetto M, Sammarco G, Santoro GA. Deadlock of proctologic practice in Italy during COVID-19 pandemic: a national report from ProctoLock2020. Updates Surg 2020; 72:1255-1261. [PMID: 32770466 PMCID: PMC7414270 DOI: 10.1007/s13304-020-00860-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/25/2020] [Indexed: 01/19/2023]
Abstract
Proctology is one of the surgical specialties that suffered the most during COVID-19 pandemic. Using data from a cross-sectional worldwide web survey, we aimed to snapshot the current status of proctologic practice in Italy with differences between three macro areas (North, Centre, South). Specialists affiliated to renowned scientific societies with an interest in coloproctology were invited to join a 27-item survey. Predictive power of respondents' and hospitals' demographics on the change of status of surgical activities was calculated. The study was registered at ClinicalTrials.gov (NCT04392245). Of 299 respondents from Italy, 94 (40%) practiced in the North, 60 (25%) in the Centrer and 82 (35%) in the South and Islands. The majority were men (79%), at consultant level (70%), with a mean age of 46.5 years, practicing in academic hospitals (39%), where a dedicated proctologist was readily available (68%). Southern respondents were more at risk of infection compared to those from the Center (OR, 3.30; 95%CI 1.46; 7.47, P = 0.004), as were males (OR, 2.64; 95%CI 1.09; 6.37, P = 0.031) and those who routinely tested patients prior to surgery (OR, 3.02; 95%CI 1.39; 6.53, P = 0.005). The likelihood of ongoing surgical practice was higher in the South (OR 1.36, 95%CI 0.75; 2.46, P = 0.304) and in centers that were not fully dedicated to COVID-19 care (OR 4.00, 95%CI 1.88; 8.50, P < 0.001). The results of this survey highlight important factors contributing to the deadlock of proctologic practice in Italy and may inform the development of future management strategies.
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Affiliation(s)
- Gaetano Gallo
- Department of Medical and Surgical Sciences, University of Catanzaro, Viale Europa, Catanzaro, Italy.
| | - Alessandro Sturiale
- Proctology and Pelvic Floor Clinical Centre, Cisanello University Hospital, Pisa, Italy
| | - Veronica De Simone
- Proctology Unit, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Rome, Italy
| | - Stefano Mancini
- Department of General Surgery, Università Politecnica delle Marche, Ancona, Italy
| | - Gian Luca Di Tanna
- The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Giovanni Milito
- General Surgery Unit, Department of General Surgery, Tor Vergata University, Rome, Italy
| | | | - Roberto Perinotti
- Colorectal Surgical Unit, Department of Surgery, Infermi Hospital, Biella, Italy
| | - Iacopo Giani
- SOSD Proctologia USL Toscana Centro, Prato, Italy
| | - Ugo Grossi
- IV Surgery Unit, Treviso Regional Hospital, University of Padua, Padua, Italy
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Han X, Xia F, Chen G, Sheng Y, Wang W, Wang Z, Zhao M, Wang X. Superior rectal artery embolization for bleeding internal hemorrhoids. Tech Coloproctol 2020; 25:75-80. [PMID: 32712932 DOI: 10.1007/s10151-020-02312-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 07/16/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND The aim of the present study was to evaluate clinical efficacy and safety of superselective embolization of the superior rectal artery (SRA) for the treatment of internal hemorrhoidal bleeding. METHODS Patients with stage II and stage III internal hemorrhoids, treated by interventional embolization of the SRA in our department between January 2017 and June 2019 were retrospectively evaluated. All patients suffering from disabling chronic hematochezia and some with relative contraindications for operation (n = 17) or rejection of conventional hemorrhoidectomy (n = 15). Superselective SRA branch embolization was performed using gelatin sponge particles (350-560 μm) and metallic coils (2-3 mm). This treatment process was planned by a multidisciplinary team consisting of proctologist, gastroenterologist and radiologist. The surgical efficacy, postoperative complications and follow-up outcomes were observed. RESULTS There were 32 patients (18 males, mean age 52 ± 12 years, range: 22-78 years), 12 (37%) with stage II hemorrhoids and 20 (63%) with stage III hemorrhoids. Embolization was successful in all patients, and bleeding symptoms resolved in 27 (84.4%) patients. The remaining 5 (15.6%) patients underwent either stapled hemorrhoidopexy (n = 4) or sclerotherapy (n = 1). Some patients experienced different degrees of pain (n = 4;12.5%), low fever (n = 11;34.4%), and tenesmus (n = 17;53.1%), which all spontaneously regressed without further treatment. All patients were followed up for at least 1 year. There were no serious complications, such as infection, intestinal ischemia or massive hemorrhage. Four patients (14.8%) had rebleeding during the first months of follow-up. All patients with re-bleeding were successfully treated with internal iliac arteriography and branch embolization and did not experience further bleeds after a minimum follow up 3 months follow-up. CONCLUSIONS The short-term efficacy of superselective SRA embolization for grade II-III internal hemorrhoids is good, and this method is safe and feasible.
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Affiliation(s)
- X Han
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - F Xia
- Department of Interventional Medicine and Vascular, Binzhou Peoples Hospital, Binzhou, 256600, Shandong, People's Republic of China
| | - G Chen
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - Y Sheng
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - W Wang
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - Z Wang
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - M Zhao
- Department of Interventional Medicine and Vascular, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, People's Republic of China
| | - X Wang
- Department of Gastroenterology, Binzhou Medical University Hospital, No.661 Huanghe 2nd Road, Binzhou, 256603, Shandong, People's Republic of China.
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