Factor XIII Therapy of Anastomotic Leak, and Circulating Growth Factors

The impact of acquired coagulation factor XIII deficiency in traumatic bleeding and wound healing

Factor XIII (FXIII) is a protein involved in blood clot stabilisation which also plays an important role in processes including trauma, wound healing, tissue repair, pregnancy, and even bone metabolism. Following surgery, low FXIII levels have been observed in patients with peri-operative blood loss and FXIII administration in those patients was associated with reduced blood transfusions. Furthermore, in patients with low FXIII levels, FXIII supplementation reduced the incidence of post-operative complications including disturbed wound healing. Increasing awareness of potentially low FXIII levels in specific patient populations could help identify patients with acquired FXIII deficiency; although opinions and protocols vary, a cut-off for FXIII activity of ~ 60–70% may be appropriate to diagnose acquired FXIII deficiency and guide supplementation. This narrative review discusses altered FXIII levels in trauma, surgery and wound healing, diagnostic approaches to detect FXIII deficiency and clinical guidance for the treatment of acquired FXIII deficiency.

Dynamics of coagulation factor XIII activity after video-assisted thoracoscopic lobectomy for non-small cell lung cancer

Background

The present study was performed to investigate the perioperative dynamics of coagulation factor XIII (FXIII) in patients with non-small cell lung cancer undergoing video-assisted thoracoscopic surgery (VATS) lobectomy compared with open lobectomy.

Methods

Perioperative coagulation factors including FXIII were analyzed in 30 patients who underwent VATS lobectomy and 10 patients who underwent open lobectomy at Teikyo University Hospital from December 2017 to April 2019.

Results

Patients in the VATS lobectomy group showed higher FXIII activity on postoperative day (POD) 5 than patients in the open lobectomy group (P=0.028). The FXIII activity was significantly lower on POD3, POD5, and POD7 than that in the preoperative period and on POD1, even in patients who had undergone VATS lobectomy (P<0.001). No factors were found to affect the maintenance of FXIII in the VATS lobectomy group.

Conclusion

The postoperative decrease of FXIII activity differed between patients who underwent VATS lobectomy and those who underwent open lobectomy. Based on the characteristics of FXIII, the FXIII activity may be a good marker of the invasiveness of VATS lobectomy versus open lobectomy.

Effect of early administration of coagulation factor XIII on fistula after pancreatic surgery: the FIPS randomized controlled trial

PURPOSE

The administration of exogenous factor XIII (FXIII) is reportedly effective for fistula closure in patients with a low plasma FXIII level. This study was performed to analyze the effect of early administration of exogenous FXIII on postoperative pancreatic fistula (POPF).

METHODS

A single-center randomized controlled, open-label, parallel group, superiority trial was conducted from October 2015 to August 2016 in Japan. Patients with POPF and a plasma FXIII level of ≤ 70% on postoperative day 7 were randomly assigned to an early replacement (ER) group or control group in a 1:1 ratio by an independent coordinator using a computer-generated random number table. The ER group received FXIII concentrate the day after randomization, and the control group received no FXIII concentrate within 2 weeks. The primary endpoint was the duration of drain placement from randomization (DDPR).

RESULTS

Fifty patients were randomized (ER group, 24; control group, 26), and all were analyzed with an intention-to-treat approach. There was no significant difference in the DDPR between the two groups (18 vs. 16 days; hazard ratio, 1.45; 95% confidence interval, 0.813-2.583). No serious harm was reported in either group.

CONCLUSION

Early administration of exogenous FXIII does not facilitate the healing of POPF.

TRIAL REGISTRATION

University Hospital Medical Information Network (UMIN) Center (UMIN000019480, http://www.umin.ac.jp ).

Clinical value of exogenous factor XIII for prolonged air leak following pulmonary lobectomy: a case control study

Background

We examined the effect of exogenous factor XIII (FXIII) concentrate in patients with prolonged air leak (PAL) after pulmonary lobectomy for non-small cell lung cancer.

Methods

We performed a retrospective analysis of 297 patients who underwent pulmonary lobectomy between July 2007 and March 2014: 90 had an air leak on the first postoperative day, which resolved spontaneously within 5 days in 53 cases (SR group). FXIII concentrate was administered to the remaining 37 patients (PAL group) for 5 days. This group was subdivided into those in whom the air leak resolved during FXIII treatment (EF group) and those who needed additional intervention (inEF group). The clinical and perioperative characteristics of the groups were compared.

Results

Although plasma FXIII activity did not differ significantly between the SR and PAL groups before surgery or on the fifth postoperative day, the proportional perioperative fall in FXIII activity was significantly greater in the SR group (33%) than the PAL group (22%, p = 0.044) and inEF group (14%, p = 0.048). On the fifth postoperative day, FXIII activity was significantly lower in the EF group than in the inEF group (74% versus 91%, p = 0.030). The optimal cut-off point for postoperative plasma FXIII activity to distinguish between the EF and inEF groups was 86%.

Conclusions

Insufficient plasma FXIII consumption and lower postoperative FXIII activity may play a role in the resolution of PAL, and exogenous FXIII concentrate may be an effective, safe and non-invasive treatment.

Biological and biomechanical effects of fibrin injection into porcine intervertebral discs

STUDY DESIGN

Surgically denucleated porcine intervertebral discs (IVD) were injected with BIOSTAT BIOLOGX Fibrin Sealant (FS), and the in vivo effects were assessed over time by histological, biochemical, and mechanical criteria.

OBJECTIVE

The objectives were to test whether the intradiscal injection of FS stimulates disc healing.

SUMMARY OF BACKGROUND DATA

Disc avascularity prevents the deposition of a provisional fibrin scaffold that typically facilitates soft tissue repair. Poor disc wound healing leads to disc damage accumulation and chronic inflammation characterized by overproduction of proinflammatory cytokines and proteolytic enzymes.

METHODS

Four lumbar IVDs from each of 31 Yucatan minipigs were randomized to untreated controls; degenerative injury (nucleotomy); and nucleotomy plus FS injection. Animals were killed at 1, 2, 3, 6, and 12 weeks postsurgery. IVDs were harvested to quantify (1) architecture using morphological and histological grading; (2) proteoglycan composition using DMMB assay; (3) cytokine content using ELISA; and (4) mechanical properties using quantitative pressure/volume testing.

RESULTS

There was progressive invasion of annular tissue into the nucleus of nucleotomy discs and concomitant reduction in proteoglycan content. By contrast, FS supplementation inhibited nuclear fibrosis and facilitated proteoglycan content recovery over time. FS discs synthesized significantly less TNF-α than degenerate discs (66% vs. 226%, P < 0.05) and had upregulation of IL-4 (310% vs. 166%) and TGF-β (400% vs. 117%) at 2 to 3 weeks posttreatment. At the third week postsurgery, the denucleated discs were less stiff than controls (pressure modulus 779.9 psi vs. 2754.8 psi; P < 0.05) and failed at lower pressures (250.5 psi vs. 492.5 psi; P < 0.05). The stiffness and leakage pressure of the FS-treated discs recovered to control values after 6 and 12 weeks, respectively.

CONCLUSION

FS facilitated structural, compositional, and mechanical repair of the surgically damaged IVD. These FS-derived benefits are likely due to its conductive scaffold properties and metabolically active constituents such as thrombin, factor XIII, and aprotinin acetate.

Efficacy of administration of coagulation factor XIII with definitive surgery for multiple intractable enterocutaneous fistulae in a patient with decreased factor XIII activity

Enterocutaneous fistulae (ECF) are challenging problem commonly encountered by surgeons and cause significant complications. They not only prolong hospital stay, but also restrict a patient's activities of daily living. The authors report a case of successful treatment of multiple intractable ECF in a patient with decreased coagulation factor XIII (FXIII) activity using intravenous FXIII treatment. A 74-year-old man with multiple ECF was referred. Although no factors involved in impaired wound were initially identified, he developed ECF after multiple surgical interventions with repeated wound dehiscence. FXIII activity was below the normal value. A definitive operation was performed and FXIII was administrated for 5 days postoperatively. There was no fistula recurrence and no other complications. Preoperative assessment of factors related to wound repair, such as FXIII activity, may be important for patients with wound dehiscence and subsequent fistula development and should be considered in patients who are resistant to standard treatments.