Open Abdomen after Two Trauma Laparotomies: Do Diuretics Help?

Data are lacking regarding the use of diuretics in facilitating closure of the open abdomen (OA). For patients with an OA after 2 laparotomies, we hypothesized that diuretic use was associated with a higher rate of primary fascial closure than no diuretic use. A retrospective review of patients with trauma laparotomies over 7 years was performed. Primary fascial closure (PFC) was defined as apposition of fascial edges without interposition mesh. Of 321 patients, 30 (9%) remained with an OA after 2 laparotomies. Prior to the third laparotomy, median cumulative fluid balance was +12.6 L. Thirteen (43%) received diuretics. Primary fascial closure rates were similar for diuretic use vs no diuretic (38% vs 59%, P = .46). Primary fascial closure was not associated with age ( P = .2), gender ( P = 0.7), cumulative fluid balance ( P = .3), or units of packed cells ( P = .4). Diuretic use in trauma patients with an OA after 2 laparotomies was not associated with successful PFC.

P109 MANAGEMENT OF THE OPEN ABDOMEN WITH COMBINED THERAPIES. HOW TO AVOID VENTRAL HERNIAS AND BE ABLE TO PERFORM THE REPAIR OF THE ABDOMINAL WALL IN A DEFINITIVE WAY

Aim To demonstrate that in patients with abdominal sepsis, delayed primary fascial closure and definitive abdominal wall repair can be achieved, in the same hospitalization, using combined therapies, which reduces the percentage of ventral hernias. Material and Methods Medical records, tomography images and outpatient controls of 9 patients were reviewed, which required open abdomen management for abdominal sepsis using negative pressure therapy combined with a dynamic fascial mesh traction, from February 2020 until May 2021. Results 9 patients (2 men and 7 women), all Grade 2C open abdomen according to Björck clasification, with a median age of 43 years (25-71). The median time therapy was 29±3 days. The primary fascial closure rate was 100% (n = 9), 77.8% (n = 7) underwent a definitive repair of the abdominal wall with absorbable synthetic mesh in the same hospitalization, while 22.2% (n = 2) did not, due to being cancer patients. The mortality rate was 11.1% (n = 1) due to pneumonia and the fistula rate was 11.1% (n = 1). None developed an incisional hernia at the one-year follow-up. Conclusions The combination of negative pressure therapy with dynamic fascial mesh traction, in the management of the open abdomen, allows us to achieve a 100% delayed primary fascial closure, avoiding ventral hernia. In the same hospitalization, while the patient leaves the critical stage, we can achieve a definitive repair of the abdominal wall using absorbable synthetic meshes returning the biomechanics to the abdominal wall, improving the quality of life of these patients.

P110 MANAGEMENT OF THE OPEN ABDOMEN WITH COMBINED THERAPIES. HOW TO AVOID THE VENTRAL HERNIA AND BE ABLE TO PERFORM THE REPAIR OF THE ABDOMINAL WALL IN A DEFINITIVE WAY

Aim To demonstrate that in patients with abdominal sepsis, delayed primary fascial closure and definitive abdominal wall repair can be achieved, in the same hospitalization, using combined therapies, which reduces the percentage of ventral hernias. Material and Methods Medical records, tomography images and outpatient controls of 9 patients were reviewed, which required open abdomen management for abdominal sepsis using negative pressure therapy combined with a dynamic fascial mesh traction, from February 2020 until May 2021. Results 9 patients (2 men and 7 women), all Grade 2C open abdomen according to Björck clasification, with a median age of 43 years (25-71). The median time therapy was 29±3 days. The primary fascial closure rate was 100% (n = 9), 77.8% (n = 7) underwent a definitive repair of the abdominal wall with absorbable synthetic mesh in the same hospitalization, while 22.2% (n = 2) did not, due to being cancer patients. The mortality rate was 11.1% (n = 1) due to pneumonia and the fistula rate was 11.1% (n = 1). None developed an incisional hernia at the one-year follow-up. Conclusions The combination of negative pressure therapy with dynamic fascial mesh traction, in the management of the open abdomen, allows us to achieve a 100% delayed primary fascial closure, avoiding ventral hernia. In the same hospitalization, while the patient leaves the critical stage, we can achieve a definitive repair of the abdominal wall using absorbable synthetic meshes returning the biomechanics to the abdominal wall, improving the quality of life of these patients.

EP.FRI.337 Active management of the open abdomen in non-trauma catastrophes, including use of negative pressure wound therapy, is associated with high primary fascial closure rates

Aims Deliberate use of the open abdomen (OA) following emergency laparotomy (EL) may be life-saving in the non-trauma abdominal catastrophe (NTAC) and damage control surgery (DCS) can reduce the risk of abdominal compartment syndrome in compromised patients. Controversy exists over optimum management of the abdominal wall. An audit was undertaken of negative pressure wound therapy (NPWT) in OA patients. Methods All patients who underwent OA management of NTAC from 1st Jan 2019 to 31st Dec 2020 were identified. Data on patient demographics, indication for OA and clinical outcomes were analysed. Results Eighteen patients (median age 65.5 years; M:F9 each) underwent OA following EL. The indications were: bowel ischaemia (8), intra-abdominal sepsis (5), grossly distended bowel (3) and intra-abdominal haemorrhage (2). In all cases, ABTHERATM dressings (KCI/Acelity) were used. Mean ICU stay was 7.4 days (range 1-15) and mean hospital stay 33 days (range 2-61). Four patients died, 3 within 24 hours of initial EL. Relook laparotomy was performed within 48 hours in the remaining 15 patients; 3 patients required 2 relooks and 1 patient had three. Primary fascial closure (PFC) was achieved within five days in 13/14 (93%) survivors. Eight patients had SSIs with 2 intra-abdominal collections and all were treated conservatively. One patient developed an enterocutaneous fistula. Conclusions The use of commercially-available NPWT dressings in OA management is associated with high PFC rates within one week of initial EL. This practice is consistent with World Society of Emergency Surgery guidance recommending planned re-look laparotomy within 48 hours.

Bioelectrical impedance analysis-guided fluid management promotes primary fascial closure after open abdomen: a randomized controlled trial

Background Fluid overload (FO) after resuscitation is frequent and contributes to adverse outcomes among postinjury open abdomen (OA) patients. Bioelectrical impedance analysis (BIA) is a promising tool for monitoring fluid status and FO. Therefore, we sought to investigate the efficacy of BIA-directed fluid resuscitation among OA patients. Methods A pragmatic, prospective, randomized, observer-blind, single-center trial was performed for all trauma patients requiring OA between January 2013 and December 2017 to a national referral center. A total of 140 postinjury OA patients were randomly assigned in a 1:1 ratio to receive either a BIA-directed fluid resuscitation (BIA) protocol that included fluid administration with monitoring of hemodynamic parameters and different degrees of interventions to achieve a negative fluid balance targeting the hydration level (HL) measured by BIA or a traditional fluid resuscitation (TRD) in which clinicians determined the fluid resuscitation regimen according to traditional parameters during 30 days of ICU management. The primary outcome was the 30-day primary fascial closure (PFC) rate. The secondary outcomes included the time to PFC, postoperative 7-day cumulative fluid balance (CFB) and adverse events within 30 days after OA. The Kaplan–Meier method and the log-rank test were utilized for PFC after OA. A generalized linear regression model for the time to PFC and CFB was built. Results A total of 134 patients completed the trial (BIA, n = 66; TRD, n = 68). The BIA patients were significantly more likely to achieve PFC than the TRD patients (83.33% vs. 55.88%, P < 0.001). In the BIA group, the time to PFC occurred earlier than that of the TRD group by an average of 3.66 days (P < 0.001). Additionally, the BIA group showed a lower postoperative 7-day CFB by an average of 6632.80 ml (P < 0.001) and fewer complications. Conclusion Among postinjury OA patients in the ICU, the use of BIA-guided fluid resuscitation resulted in a higher PFC rate and fewer severe complications than the traditional fluid resuscitation strategy.

Wide variation in surgical techniques to repair incisional hernias: a survey of practice patterns among general surgeons

Background The purpose of this research was to examine the self-reported practice patterns of Canadian general surgeons regarding the elective repair of incisional hernias. Methods A mail survey was sent to all general surgeons in Canada. Data were collected regarding surgeon training, years in practice, practice setting and management of incisional hernias. Surgeons were asked to describe their usual surgical approach for a patient with a midline incisional hernia and a 10 × 6 cm fascial defect. Results Of the 1876 surveys mailed out 555 (30%) were returned and 483 surgeons indicated that they perform incisional hernia repair. The majority (62%) have been in practice > 10 years and 73% regularly repair incisional hernias. In response to the clinical scenario of a patient with an incisional hernia, 74% indicated that they would perform an open repair and 18% would perform a laparoscopic repair. Ninety eight percent of surgeons would use mesh, 73% would perform primary fascial closure and 47% would perform a component separation. The most common locations for mesh placement were intraperitoneal (46%) and retrorectus/preperitoneal (48%). The most common repair, which was reported by 37% of surgeons, was an open operation, with mesh, with primary fascial closure and a component separation. Conclusions While almost all surgeons who perform incisional hernia repairs would use permanent mesh, there was substantial variation reported in surgical approach, mesh location, fascial closure and use of component separation techniques. It is unclear how this variability may impact healthcare resources and patient outcomes.

Should Negative Pressure Therapy Replace Any Other Temporary Abdominal Closure Device in Open-Abdomen Management of Secondary Peritonitis?

AIM: To clarify the advantages of negative pressure therapy (NPT) compared to other methods of temporary abdominal closure (TAC) in the management of secondary peritonitis. METHODS: We retraced the history of known methods of TAC, and analyzed their advantages and disadvantages. We evaluated as the NPT mechanisms, both from the macroscopic that bio-molecular point of view, well suits to manage this difficult condition. RESULTS: The ideal TAC technique should be quick to apply, easy to change, protect and contain the abdominal viscera, decrease bowel edema, prevent loss of domain and abdominal compartment syndrome, limit contamination, allow egress of peritoneal fluid (and its estimation) and not result in adhesions. It should also be cost-effective, minimize the number of dressing changes and the number of surgical revisions, and ensure a high rate of early closure with a low rate of complications (especially entero-atmospheric fistula). For NPT, the reported fistula rate is 7%, primary fascial closure ranges from 33 to 100% (average 60%) and the mortality rate is about 20%. With the use of NPT as TAC, it may be possible to extend the window of time to achieve primary fascial closure (for up to 20-40 days). CONCLUSION: NPT has several potential advantages in open-abdomen (OA) management of secondary peritonitis and may make it possible to achieve all the goals suggested above for an ideal TAC system. Only trained staff should use NPT, following the manufacturer’s instructions when commercial products are used. Even if there was a significant evolution in OA management, we believe that further research into the role of NPT for secondary peritonitis is necessary.