Long-term results of endoscopic pilonidal sinus treatment vs Limberg flap for treatment of difficult cases of complicated pilonidal disease: a prospective, nonrandomized study

Outcomes of Pediatric Endoscopic Pilonidal Sinus Treatment: A Systematic Review

Treatment of pilonidal sinus disease with conventional excision techniques is associated with recurrence up to 20 to 30% (primary closure) or with prolonged healing that might last months (closure by secondary intention). Endoscopic pilonidal sinus treatment (EPSiT) is gaining increasing popularity. This systematic review aims to summarize and evaluate the reported outcomes of pediatric EPSiT (PEPSiT) to date. Systematic search was performed for all studies on PEPSiT in patients younger than 18 years, pertaining to demographics, technique, and outcomes. Fisher's test was used to assess the associations between success/recurrence rates and different approaches (fistuloscope vs. cystoscope, different wound care protocols). A total of 320 patients (9 studies, 2018-2022) with a weighted mean age of 15.7 years and follow-up duration of 13.5 months were included. PEPSiT was successful in 290 patients (90.9%) with weighted mean time to healing of 4.1 weeks. Recurrence was reported in 29 patients (9.1%) with weighted mean time to recurrence of 4.6 months. Outcomes were not significantly altered by the use of fistuloscope versus pediatric cystoscope (p = 1.0), or with perioperative laser epilation (p = 0.06), or postoperative regular shaving, depilatory creams, light pulse, or laser (p = 0.31). The weighted mean operative time was 38 minutes and hospital stay was 16 hours. Summary of available evidence confirms that PEPSiT is safe and effective. Added to its noninvasiveness, PEPSiT's pooled outcomes appear superior to those of numerous conventional techniques. Comparison with conventional techniques, particularly off-midline flap and semi-closure procedures, is, however, lacking. The superiority of PEPSiT needs to be confirmed in future comparative studies, including cost-benefit analysis.

Midline and off-midline wound closure methods after surgical treatment for pilonidal sinus

BACKGROUND

Pilonidal sinus disease is a common and debilitating condition. Surgical treatment remains the mainstay for managing chronic disease, with options including midline and off-midline wound closure methods. However, the optimal approach remains uncertain. Recent developments in tension-free midline techniques require further exploration.

OBJECTIVES

To assess the effects of midline and off-midline wound closure methods for pilonidal sinus, and to determine the optimal off-midline flap procedures.

SEARCH METHODS

In June 2022, we searched the Cochrane Wounds Specialised Register, CENTRAL, MEDLINE, Embase, CINAHL Plus EBSCO, and clinical trials registries. We also scanned the reference lists of included studies, as well as reviews, meta-analyses, and health technology reports. We applied no language, publication date, or study setting restrictions.

SELECTION CRITERIA

We included parallel RCTs involving participants undergoing midline closure without flap techniques and off-midline closure for pilonidal sinus treatment. We excluded quasi-experimental studies and studies that enroled participants presenting with an abscess.

DATA COLLECTION AND ANALYSIS

We followed standard Cochrane methodology. The critical outcomes included wound healing (time to wound healing, proportion of wounds healed), recurrence rate, wound infection, wound dehiscence, time to return to work, and quality of life. We assessed biases in these outcomes utilising the Cochrane risk of bias 2 tool and appraised evidence certainty via the GRADE approach.

MAIN RESULTS

We included 33 studies with 3667 analysed participants. The median or average age of the participants across the included studies ranged from 21.0 to 34.2 years, with a predominant male representation. Geographically, the trials were primarily conducted in the Middle East. We identified nine intervention comparisons. In this abstract, we focus on and present the summarised findings for the three primary comparisons. Off-midline closure versus conventional midline closure Off-midline closure probably reduces the time to wound healing (mean difference (MD) -5.23 days, 95% confidence interval (CI) -7.55 to -2.92 days; 3 studies, 300 participants; moderate-certainty evidence). However, there may be little to no difference between the two methods in the proportion of wounds healed (100% versus 88.5%, risk ratio (RR) 1.13, 95% CI 0.92 to 1.39; 2 studies, 207 participants; very low-certainty evidence). Off-midline closure probably results in lower rates of recurrence (1.5% versus 6.8%, RR 0.22, 95% CI 0.11 to 0.45; 13 studies, 1492 participants; moderate-certainty evidence) and wound infection (3.8% versus 11.7%, RR 0.32, 95% CI 0.22 to 0.49; 13 studies, 1568 participants; moderate-certainty evidence), and may lower rates of wound dehiscence (3.9% versus 8.9%, RR 0.44, 95% CI 0.27 to 0.71; 11 studies, 1389 participants; low-certainty evidence). Furthermore, off-midline closure may result in a reduced time to return to work (MD -3.72 days, 95% CI -6.11 to -1.33 days; 6 studies, 820 participants; low-certainty evidence). There were no data available for quality of life. Off-midline closure versus tension-free midline closure Off-midline closure may reduce the time to wound healing (median 14 days in off-midline closure versus 51 days in tension-free midline closure; 1 study, 116 participants; low-certainty evidence) and increase wound healing rates at three months (94.7% versus 76.4%, RR 1.24, 95% CI 1.06 to 1.46; 1 study, 115 participants; low-certainty evidence), but may result in little to no difference in rates of recurrence (5.4% versus 7.8%, RR 0.69, 95% CI 0.30 to 1.61; 6 studies, 551 participants; very low-certainty evidence), wound infection (2.8% versus 6.4%, RR 0.44, 95% CI 0.16 to 1.17; 6 studies, 559 participants; very low-certainty evidence), and wound dehiscence (2.5% versus 3.0%, RR 0.82, 95% CI 0.17 to 3.84; 3 studies, 250 participants; very low-certainty evidence) compared to tension-free midline closure. Furthermore, off-midline closure may result in longer time to return to work compared to tension-free midline closure (MD 3.00 days, 95% CI 1.52 to 4.48 days; 1 study, 60 participants; low-certainty evidence). There were no data available for quality of life. Karydakis flap versus Limberg flap Karydakis flap probably results in little to no difference in time to wound healing compared to Limberg flap (MD 0.36 days, 95% CI -1.49 to 2.22; 6 studies, 526 participants; moderate-certainty evidence). Compared to Limberg flap, Karydakis flap may result in little to no difference in the proportion of wounds healed (80.0% versus 66.7%, RR 1.20, 95% CI 0.77 to 1.86; 1 study, 30 participants; low-certainty evidence), recurrence rate (5.1% versus 4.5%, RR 1.14, 95% CI 0.61 to 2.14; 9 studies, 890 participants; low-certainty evidence), wound infection (7.9% versus 5.1%, RR 1.55, 95% CI 0.90 to 2.68; 8 studies, 869 participants; low-certainty evidence), wound dehiscence (7.4% versus 6.2%, RR 1.20, 95% CI 0.41 to 3.50; 7 studies, 776 participants; low-certainty evidence), and time to return to work (MD -0.23 days, 95% CI -5.53 to 5.08 days; 6 studies, 541 participants; low-certainty evidence). There were no data available for quality of life.

AUTHORS' CONCLUSIONS

This Cochrane review examines the midline and off-midline wound closure options for pilonidal sinus, predominantly based on young adult studies. Off-midline flap procedures demonstrate there may be benefits over conventional midline closure for pilonidal sinus, with various off-midline flap techniques. When off-midline flap closures were compared to tension-free midline closure, low-certainty evidence indicated there may be improved wound healing and increased time to return to work for off-midline closure, whilst very low-certainty evidence indicated there may be no evidence of a difference in other outcomes. There may be no evidence of an advantage found amongst the off-midline techniques evaluated. The choice of either procedure is likely to be based on a clinician's preference, experience, patient characteristics, and the patients' preferences. To more accurately determine the benefits and potential harms of these closure techniques, further large-scale and meticulously-designed trials are essential. Specifically, there is a pressing need for more studies addressing the paediatric population, in addition to adult studies.

Five-year recurrence after endoscopic approach to pilonidal sinus disease: A multicentre experience

PURPOSE

The aim of this study was to evaluate the 5-year recurrence rate of pilonidal sinus disease (PSD) after endoscopic sinusectomy and identify risk factors for recurrence.

METHODS

All consecutive patients from September 2011 through December 2017 who underwent endoscopic sinusectomy at seven referral centres for pilonidal sinus treatment were retrospectively analysed from a prospectively maintained database.

RESULTS

Out of 290 patients (185 males versus 105 female, with a mean age of 25.5±6.9), 73 presented recurrence at 5-year follow-up with a recurrence rate of 25.2%. The number of pilonidal sinus with pits off the midline (p = 0.001) and the mean (SD) distance from the most lateral orifice to the midline (p = 0.001) were higher in the group of patients with recurrence at 5-year follow-up. Multivariate analysis demonstrated that the position of the pits off the midline (p = 0.001) and the distance of the most lateral orifice from the midline (p = 0.001) were independent risk factors for recurrence at 5-year follow-up. Receiver operating characteristic (ROC) curve analysis showed that the distance of lateral orifice from midline predicted an 82.2% possibility of recurrence at 5-year follow-up and Youden's test identified the best cut-off as 2 cm for this variable. Out of 195 cases with the most lateral orifice less than 2 cm from the midline, 13 presented recurrence at 5-year follow-up with a recurrence rate of 6.7%. Out of 95 cases with the most lateral orifice more than 2 cm from midline, 60 showed recurrence at 5-year follow-up with a recurrence rate of 63.2%.

CONCLUSIONS

This data may help guide which disease characteristics predict the optimal use of an endoscopic pilonidal sinus technique.

Cleft closure (the Bascom cleft lift) for 714 patients-treatment of choice for complex and recurrent pilonidal disease (a cohort study)

AIM

Pilonidal disease is a benign condition that affects mainly the young. In existing literature, there is no consensus for best treatment, with multiple operative techniques described, some complex, resulting in a high proportion of failure and/or morbidity. The cleft closure (or cleft lift) described by Bascom and Bascom (Arch Surg, 137, 2002, 1146-50), by comparison, is a simple operation, resulting in healing in the majority and good cosmesis.

METHOD

This is a single surgeon series, with the aim of evaluating outcomes for consecutive patients who underwent cleft closure surgery at two centres (St Mark's Hospital, London, and Queen Alexandra Hospital, Portsmouth) between 1995 and 2021 for either extensive, complex or recurrent pilonidal disease. Primary study outcomes that were measured included rate of primary healing, time to complete healing and rate of recurrence.

RESULTS

Some 714 patients had a cleft closure of whom 656 had documented follow-up. Primary healing occurred in 60.7% (n = 398) rising to 88.5% by 12 weeks (n = 562) and 91.8% by 16 weeks. The remaining patients healed over the following weeks with only 19 wounds failing to heal completely (3%), requiring further surgery to achieve healing. After complete healing 5.3% of patients developed recurrent disease at a median of 12 months.

CONCLUSION

Cleft closure is an effective operation for pilonidal disease. Overall, 97% of patients healed without further surgery. A 3% failure rate and 5.3% recurrence rate were observed. This technique could be considered as an alternative procedure to complex flaps or midline excision, in extensive, recurrent and unhealed pilonidal disease.

Progress in the surgical treatment of sacrococcygeal pilonidal sinus: a review

BACKGROUND

A pilonidal sinus (PS) is an acquired disease resulting from recurrent infections and chronic inflammation. A PS involving the sacrococcyx is referred to as a sacrococcygeal PS (SPS). An SPS is a rare chronic infectious disease for which surgery is a good choice. The incidence of SPS has gradually increased worldwide in recent years. However, surgeons have not reached a consensus on the preferred surgical approach for SPS. The authors performed a systematic review and meta-analysis to analyze differences in the efficacy of different surgical approaches for the treatment of SPS.

METHODS

A systematic search was conducted in the PubMed database covering the period from 1 January 2003, to 28 February 2023. The primary outcome parameters were recurrence and infection. Finally, statistical analysis (meta-analysis) was carried out using RevMan 5.4.1 software. In addition, we systematically reviewed the latest progress in the surgical treatment of SPS over the past 20 years, especially as reported in the past 3 years.

RESULTS

Twenty-seven articles, 54 studies, and 3612 participants were included in this meta-analysis. The recurrence rate following the midline closure (MC) technique was much higher than that of other techniques. Among the techniques analyzed, the differences between MC and Limberg flap (LF), and between MC and marsupialization were statistically significant [ P =0.0002, risk ratio (RR)=6.15, 95% CI 2.40, 15.80; P =0.01, RR=12.70, 95% CI 1.70, 95.06]. The recurrence rate of open healing was higher than that of the Karydakis flap (KF) technique, and the difference was statistically significant ( P =0.02, RR=6.04, 95% CI 1.37, 26.55). Most of the results comparing MC with other techniques suggested that the former had a higher infection rate, and the difference between MC and LF was statistically significant ( P =0.0005, RR=4.14, 95% CI 1.86, 9.23). Comparison between KF and LF, modified LF and KF showed that the differences were not statistically significant in terms of recurrence and infection ( P ≥0.05).

CONCLUSIONS

There are various surgical treatment options for SPS, including incision and drainage, excision of diseased tissue with primary closure and secondary healing, and minimally invasive surgery. It is still not possible to determine which surgical technique should be considered the gold standard for treatment, as even the results of different researchers using the same operation method are conflicting. But what is certain is that the midline closure technique has a much higher incidence of postoperative recurrence and infection than other techniques. Therefore, the anorectal surgeon should formulate the most suitable individualized plan for the patient based on a comprehensive evaluation of the patient's wishes, appearance of the SPS, and the professional ability of the surgeon.

Endoscopic approach to complex or recurrent pilonidal sinus: A retrospective analysis

Pilonidal Sinus is a benign, chronic disease that affects the hair follicles of the natal cleft of the sacrococcygeal area. Its ideal treatment is controversial, especially in complex or recurrent cases. The aim of this study is to evaluate the use of minimally invasive endoscopic approach in this setting. We enrolled patients affected by complex or recurrent sacrococcygeal pilonidal sinus from January 2015 through December 2020 who underwent Video-Assisted Ablation of Pilonidal Sinus. All patients enrolled were re-evaluated once a year with a standard physical examination. The patients included were 38. Recurrence rate at 1-, 3- and 5-years follow-ups were 28.9%, 22.2% and 38.1% respectively. Of interest, the mean (SD) distance from the most lateral orifice to the midline was higher in group of patients with recurrence and the multivariate analysis demonstrated that it was the limiting factor, which influences the recurrence rate. In complex or recurrent pilonidal sinus disease with pits off the midline the endoscopic approach should not be the first choice. This makes us think that these cases should have their own classification to be identified and guide surgeons in choosing the appropriate approach.

Endoscopic sinusectomy: 'a rose by any other name'. A systematic review of different endoscopic procedures to treat pilonidal disease

AIM

Pilonidal sinus or Pilonidal Disease (PD) is a relatively common, benign but challenging condition. Although commonly encountered in practice, its ideal treatment is controversial. One of the most validated treatments is video-assisted surgery. In this context, very similar endoscopic techniques have been published under different names. The aim of this systematic review is to assess the differences among these proposed techniques and their outcomes.

METHODS

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed during all stages of this systematic review. A systematic search of the English literature was performed on multiple databases from 1 January 2014 to 3 April 2022. The primary outcome measure was the IDEAL framework stage of innovation. The key secondary outcome measures were the adherence to the IDEAL reporting guidelines, the Blencowe framework and the core outcome set (COS) for studies evaluating the introduction and evaluation of novel surgical techniques, the qualitative assessment using appropriate tools, the procedural variations and outcomes of each technique.

RESULTS

A total of 38 articles were included reporting a very similar technique under eight different acronyms. The number of patients varied from 9 to 250. Mean follow-up ranged from 1 to 60 months. There was only one published study of IDEAL 3. The majority (58%) were IDEAL 2a studies. Reporting of domains in the IDEAL reporting guidelines and Blencowe framework was poor, with most studies not reporting the component steps of procedures or efforts to standardize them. Half of COS domains were markedly underreported. The quality of the evidence was categorized as having a risk of bias from moderate to critical level in all nine comparative non-randomized series. Postoperative complications occurred in 0%-6% of cases, including surgical site infection, poor or failed wound healing bleeding, granuloma, haematoma, and pain requiring intervention. The recurrence rate varied from 0% to 22%.

CONCLUSION

The study demonstrates that reporting on technical aspects of interventions for PD is poor, thus warranting a better-quality control of surgical techniques. It is advisable to group all endoscopic procedures under the umbrella term of 'endoscopic sinusectomy', thus embracing the two main principles of this technique, that is, video assistance and PD ablation.

Patient preferences for pilonidal sinus treatments: a discrete choice experiment survey

BACKGROUND

A range of treatments are available for pilonidal sinus disease (PSD), each of which has a different risk/benefit profile. The aim of this study was to collect patient views on which interventions they would rather avoid and which outcomes they most value for PSD.

METHOD

We conducted an online survey using the discrete choice experiment (DCE) method. DCE task involved participants choosing the best treatment option when presented with a set of competing hypothetical treatment profiles. Participants with symptomatic PSD, referred for elective surgery were recruited from 33 NHS trusts between 2020 and 2022. Collected DCE data were analysed using regression analyses.

RESULTS

One hundred and eleven participants completed the survey. In the overall group, low risk of infection/persistence was the most important characteristic when making a treatment decision (attribute importance score of 70%), followed by treatments with shorter recovery time with an attribute importance score of 30%. The results demonstrated that patients are willing to accept trade-offs between treatment recovery time and risk of infection/persistence. Patients above 30 years old are willing to accept a higher chance of treatment failure in exchange for rapid treatment recovery (risk tolerance between 22.35 - 34.67 percentage points). Conversely, patients in the younger age groups, were risk averse, and were only willing to accept a small risk 1.51-2.15 in exchange for a treatment with faster recovery time. All patient groups appear to the reject the excision and leave open technique due to the need for protracted nursing care.

CONCLUSION

This study highlights the need for shared decision making when it comes to surgery for PSD.

Comparative analysis on the effect of the endoscopic versus conventional treatment for pilonidal sinus: A meta-analysis of controlled clinical trials

BACKGROUND

Pilonidal sinus is a common disease in the sacrococcygeal region. Although many treatments have been described in recent years, the recurrence of each method remains high. Surgeons did not reach a consensus on the preferred approach for pilonidal sinus. We carried out a meta-analysis of controlled clinical trials comparing the outcomes of endoscopic treatment versus conventional treatment for pilonidal sinus disease in this study.

METHODS

We performed a systematic literature search, and we used electronic databases such as PubMed/Medline, Embase, and the Cochrane library to search for the relevant literature comparing endoscopic management to other conventional treatments for pilonidal sinus disease. The primary outcome parameters were operative time, recurrence, postoperative complications and pain, and total healing time.

RESULTS

Six studies were included in the review. Endoscopic pilonidal sinus treatment had a lower overall complication rate than the conventional surgery group (risk ratio = 0.33 [0.19-0.58], P = .0001) and lower pain score with a weighted mean difference of -2.44 (95% confidence interval: (-3.96) to (-0.92), I2 = 99%, P = .002). There was no significant difference in recurrence (risk ratio = 0.75, 95% confidence interval [0.30-1.90],P = .55). Compared to the excision followed by the primary closure technique, the operation time, time to complete wound healing, and satisfaction were similar.

CONCLUSIONS

Endoscopic pilonidal sinus treatment is a unique and potential method of sacrococcygeal pilonidal disease treatment. The foremost benefits of this technique are mild postoperative pain, lower complications rate, and return to routine for a shorter time. However, due to the limited number of articles, we need to conduct more rigorous large-sample prospective randomized controlled trials to clarify the efficiency of endoscopic treatment for pilonidal cysts.

Midline and off‐midline wound closure methods after surgical treatment for pilonidal sinus

This is a protocol for a Cochrane Review (intervention). The objectives are as follows:

To assess the effects of midline and off‐midline wound closure methods after surgical treatment for pilonidal sinus.

Endoscopic Treatment of Pilonidal Sinus Disease: State of Art and Review of the Literature

Background: Pilonidal sinus disease (PSD) is a chronic troublesome pathology of the natal cleft of the sacrococcygeal region, with an estimated incidence of 26 cases in every 100,000 inhabitants. The aim of this review is to give a snapshot of the current literature on the endoscopic approach to PSD. Methods: A search on endoscopic treatment of pilonidal disease was performed according to PRISMA guidelines, adopting the following search terms: (pilonidal OR sacrococcygeal) and (endoscopic OR VAAPS OR EPSiT OR minimally invasive OR video-assisted OR video assisted). Results: Thirty-four articles were included in the final analysis, among which 23 were on adults and 11 were on pediatric population. The endoscopic approach is associated with painless postoperative pain, good aesthetic results, short time off work, and high patient satisfaction. Despite these advantages in short-term outcomes, results on recurrence rate in a long-term follow up are needed to definitively confirm the importance of this technique. Conclusions: The endoscopic approach is associated with significant postoperative advantages over other standard surgical approaches, and it should be included in the surgical portfolio for the treatment of PSD. According to the Italian guidelines, this technique could be considered as the gold standard for limited PSD. However, the favorable short-term-outcomes and lack of reliable data on long-term follow-up must be a stimulus to perform further high-quality studies to give definitive conclusions on this technique.

Consensus statement of the Italian society of colorectal surgery (SICCR): management and treatment of pilonidal disease

Pilonidal disease (PD) is a relatively common, benign but challenging condition of the natal cleft. This consensus statement was drawn up by a panel of surgeons, identified by the Italian Society of Colorectal Surgery (SICCR) as having a "special interest" in PD, with the aim of recommending the best therapeutic options according to currently available scientific evidence. A three-step modified-Delphi process was adopted, implying: (1) choice of the panelists; (2) development of a discussion outline and of target issues; and (3) a detailed systematic review of the current literature. The agreement/disagreement level was scored on a five-point Likert scale as follows: "A + : strongly agree; A-: agree; N: unsure/no opinion; D-: disagree; D + : strongly disagree. Each panelist contributed to the production of this manuscript, and the final recommendations were reviewed by the Clinical Practice Guidelines Committee.

Endoscopic Pilonidal Sinus Treatment: A Tertiary Care Academic Center Experience

Background: Pilonidal disease (PD) represents one of the most common proctological diseases in young adults. Although several approaches to treating PD have been described, there is still a lack of agreement on which is the best. The aim of this study was to evaluate the long-term efficacy of endoscopic pilonidal sinus treatment (EPSiT) at a tertiary care academic center. Methods: Between June 2017 and January 2021, a total of 32 patients [12 women (37.5%) and 20 men (62.5%)] with a mean age of 29.22 ± 12.98 years were treated with EPSiT. Pre- and post-operative symptoms were assessed with a score of 0-5. Success was defined as the absence of any subjective symptoms, as well as by complete post-operative wound healing. Results: Most of the patients had a midline external opening (17/32; 53.1%), with a mean number of external openings of 2.41 (1-4) ± 1.04. The median post-operative pain score was 0, and the mean follow-up period was 22 (4-42) ± 11.49 months. The time to wound healing was reduced in patients with one opening (28.14 ± 4.06 days) compared to patients with two or more openings (33.64 ± 7.3 days) (p = 0.067). The mean operative time was longer in patients who subsequently had a recurrence (41.75 ± 6.24 vs. 34.18 ± 6.24 min; p = 0.031). The overall success rate was 87.5% (28/32), and the mean time to recurrence was 3.25 (2-5) ± 1.26 months. Conclusions: EPSiT represents a viable option for the treatment of PD. More evidence and a longer follow-up period are needed to validate the results.

Risk factors in the prognosis of flap techniques for pilonidal sinus disease based on magnetic resonance imaging and clinical parameters

BACKGROUND

Postoperative complications and recurrence are major diffficulties in the flap techniques for the treatment of pilonidal sinus (PS), however, the risk factors remain unclear. While magnetic resonance imaging (MRI) offers the highest soft tissue resolution, few studies have applied MRI to investigate the basic parameters of PS.

METHODS

A total of 100 patients receiving Limberg flap (LF) or Karydakis flap (KF) surgery at the Sixth Affiliated Hospital of Sun Yat-Sen University were retrospectively analyzed, and the median follow-up period was 42 (range, 20-90) months. We performed a multivariate logistic analysis on the clinicopathological parameters and MRI data to identify risk factors for complications and recurrence.

RESULTS

The basic parameters of PS were obtained by MRI analysis. The multivariate analysis revealed a large longitudinal sinus diameter (OR = 1.020, 95%CI = 1.000-1.041) and sacrococcygeal dermal thickness (OR = 1.680, 95%CI = 1.142-2.472) to be independent risk factors for early complications. Meanwhile, a small sacrococcygeal fat thickness (OR = 0.923, 95%CI = 0.864-0.987) and a high BMI (OR = 1.291, 95%CI = 1.067-1.563) are independent risk factors for late complications and recurrence, respectively.

CONCLUSION

We used MRI to measure the basic parameters of PS accurately, including size, volume, location and some key points of the surrounding tissues, and identified, besides the selection of surgical approach, some specific basic parameters of PS might be the risk factors for complications and recurrence after flap techniques.

A minimally invasive approach to pilonidal disease with endoscopic pilonidal sinus treatment (EPSiT): a single-center case series with long-term results

BACKGROUND

Minimally invasive techniques for treating pilonidal disease are safe and effective alternatives to conventional surgery, with improved recovery time, cosmetic results, and pain control. The aim of this study was to evaluate the 5-year surgical outcomes of a single-center case series treated with endoscopic pilonidal sinus treatment (EPSiT).

METHODS

We conducted a retrospective single-center analysis of all patients treated with EPSiT, by a single surgical team, from March 2015 to December 2019, for primary or recurrent pilonidal disease. The primary outcomes were recurrence, persistence and treatment failure. The secondary outcomes were postoperative pain, painkiller use, time off work, satisfaction, complications, wound healing time, time to persistence or recurrence.

RESULTS

Forty-two patients underwent 46 EPSiT procedures [34 males, 8 females, median age 25 (IQR 13.75) years] for primary (47.8%) or recurrent pilonidal disease (52.2%). All patients completed the follow-up [median 62 (IQR 43) months]. The single procedure healing rate was 76.1%. The healing rate for the first procedures plus the second EPSiT procedure (performed in 4 cases) was 83.3%. Among the 46 EPSiT procedures, we recorded six cases of persistence (13.0%) and five cases of recurrence (10.9%) The median operative time was 32.5 (IQR 18.75) minutes, the median pain score (visual analog scale) in week 1 was 2 (IQR 2), and the median time off work was 4 (IQR 2) days. Four patients (8.7%) experienced complications: serosanguineous (n = 2) or seropurulent discharge (n = 2). The satisfaction rate was 95.7%.

CONCLUSIONS

In our experience, EPSiT is safe, well accepted. and associated with a low level of postoperative pain, short hospitalization, short time off work, as well as optimal cosmetic results. Its failure rate is similar to that of excisional surgery.

Negative pressure-assisted endoscopic pilonidal sinus treatment

BACKGROUND

Endoscopic pilonidal sinus treatment (EPSiT) is a novel minimally invasive option for the treatment of pilonidal sinus disease (PSD). To optimise the postoperative wound management after EPSiT, an ultraportable negative pressure wound therapy (NPWT) device was used. The aim of this study was to assess the clinical outcomes of negative pressure-assisted (NPA) EPSiT.

METHODS

All patients with PSD treated by EPSIT from November 2017 to October 2019 were managed postoperatively with a commercially available NPTW dressing applied to the wound. All patients were prospectively entered into a dedicated database. Primary outcome measures were healing rate and return to normal activities. Secondary outcomes were postoperative complications and patient satisfaction.

RESULTS

Thirteen male patients underwent NPA EPSiT (mean age 27.8 years, range 16-52 years). Two patients had previous surgery for PSD. The mean follow-up was 14 months (range 4-28 months). In two patients, only partial healing of the tract was achieved. One of these required a further successful NPA EPSiT, while the other one refused any other treatment because of the lack of symptoms. Eight patients were very satisfied and 5 were satisfied with this treatment.

CONCLUSIONS

NPA EPSiT is a simple method for improving postoperative wound management, facilitating a quicker recovery and possibly improving overall patient satisfaction.

Endoscopic Approach to Recurrent Pilonidal Sinus: A Retrospective Analysis

Background: The aim of this study is to report short- and long-term results using video-assisted ablation of pilonidal sinus (PS) technique to treat recurrent PS. Methods: We included all consecutive patients with a recurrent PS disease operated on with endoscopic approach since 1st January 2014 to 31st December 2018. Analyzed outcomes were recurrence rate at 1, 3, and 5 years, time off work, time to sitting on toilet and to walk without pain, time to wound healing, rate of incomplete wound healing and postoperative infection, postoperative pain at 6 hours, 1 day, and 1 week, and patients' satisfaction after 1 month. Demographic and sinuses' data were recorded. To adjust for all the variables, multivariate analyses were performed with outcomes as dependent variables, and with patients' and sinuses' characteristics as independent variables. Results: Sixty-three patients were included in the analysis. Recurrence rate at 1-year follow-up was 4.7% (3 patients on 63), at 3-year follow-up was 11.7% (4 on 34), and at 5-year follow-up was 23.07% (3 on 13). A 3- and 5-year follow-up was completed by 34 and 13 patients, respectively. The mean time off work was 3.5 ± 1.5 days, time to sitting on toilet without pain was 1.5 ± 1.1 days, and time to walk without pain was 1.3 ± 0.9 days. The mean time to wound healing was 27.9 ± 10.3 days, with a rate of incomplete wound healing of 4.7%. Postoperative infection rate was 7.9%. The mean postoperative pain was 1 ± 0.9 at 6 hours after the procedure, 0.6 ± 0.6 at 1 day and 0.1 ± 0.3 at 1 week. Patients' satisfaction was good in 98.5% of patients. After the multivariate analysis, no parameters showed an influence on the postoperative outcomes. Conclusions: Our results encouraged to adopt an endoscopic approach even in case of recurrent PS.