Review spotlights umbilical vein marsupialization in foals
Bottom line
Version 1 — Brief
A new mini review in Frontiers in Veterinary Science pulls together the limited published evidence on umbilical vein marsupialization in foals, a salvage surgical technique used when septic omphalophlebitis extends too far cranially for complete resection, including cases with liver involvement. The review, by Agnieszka Florczyk and published June 30, 2026, outlines diagnosis, case selection, core surgical steps, postoperative management, and reported complications, positioning the procedure as an option when standard omphalectomy isn't feasible. (frontiersin.org)
Why it matters: For equine veterinarians, the paper is less about introducing a new procedure than about consolidating sparse guidance for a high-stakes neonatal problem. Umbilical remnant infections are common in foals, and while antibiotics and surgical resection remain standard care, the review highlights that marsupialization may help preserve a treatment path in advanced cases. Recent case-based literature cited around the review suggests the technique can be clinically feasible, but it also carries meaningful postoperative risks, including incisional complications and hernia formation, underscoring the need for careful client communication and follow-up planning. (frontiersin.org)
What to watch: Whether additional multicenter outcome data emerge to clarify which foals benefit most, and how surgeons can reduce postoperative complications. (frontiersin.org)
Key facts
- Article type
- Mini review
- Journal
- Frontiers in Veterinary Science
- Author
- Agnieszka Florczyk
- Publication date
- June 30, 2026
- Topic
- Umbilical vein marsupialization in foals
- Use case
- Salvage surgery for septic omphalophlebitis when infection extends too far cranially for complete resection
- Anatomic limitation
- Used when omphalophlebitis reaches the liver or extends too cranially for complete removal
- Reported complications
- Incisional complications and hernia formation
Version 2 — Full analysis
A newly published mini review in Frontiers in Veterinary Science is drawing attention to one of equine neonatal surgery’s narrower, but clinically important, topics: umbilical vein marsupialization in foals. Published June 30, 2026, the article by Agnieszka Florczyk compiles the limited literature on the procedure and frames it as a treatment option for septic omphalophlebitis when infection extends cranially along the umbilical vein, especially when complete excision is not possible. (frontiersin.org)
The background is familiar to equine practitioners. Umbilical remnant infections are a common problem in neonatal foals and can involve one or more structures, with diagnosis typically built on physical examination, ultrasonography, and hematologic workup. Standard management starts with broad-spectrum antimicrobials, but surgery becomes necessary when medical therapy fails or when infected remnants cannot be adequately managed conservatively. The challenge increases when the umbilical vein is involved far enough proximally that resection risks extending into the liver. (frontiersin.org)
Florczyk’s review appears aimed at that exact decision point. According to the paper, marsupialization is considered when omphalophlebitis reaches the liver or extends too cranially for complete removal. The review summarizes the operative approach, including dorsal recumbency and a fusiform incision around the umbilicus, and discusses postoperative care and expected complications. Because the literature remains thin, the article is positioned as a practical synthesis rather than a definitive evidence-based guideline. (frontiersin.org)
That limited evidence base is beginning to grow. A 2025 Equine Veterinary Education report on 11 foals described umbilical vein marsupialization as a feasible treatment for septic omphalophlebitis with very cranial extension or liver involvement, with 10 of 11 foals reportedly alive at a median follow-up of 44.5 months after discharge, as summarized in later review literature. At the same time, earlier case reporting documented hernia formation after single-stage marsupialization in three Percheron foals, reinforcing that feasibility does not mean low risk. (beva.onlinelibrary.wiley.com)
Recent industry and academic discussion also suggests the procedure is being viewed within a broader evolution of foal omphalectomy techniques. An Equine Veterinary Education update on innovative surgical techniques referenced the 11-foal marsupialization series as part of a changing surgical toolkit, while also highlighting newer approaches intended to facilitate removal of the extrahepatic umbilical vein. That suggests the field is not coalescing around one answer, but rather trying to better match technique to lesion extent and anatomic limitations. (beva.onlinelibrary.wiley.com)
Why it matters: For veterinary professionals, especially equine surgeons and neonatal clinicians, this review is useful because it consolidates a procedure many may encounter only rarely, but under urgent circumstances. In referral settings, it may help standardize thinking around when marsupialization is preferable to aggressive resection, and how to counsel pet parents about prognosis, hospitalization, wound care, and the possibility of later complications such as incisional problems or herniation. More broadly, it highlights a recurring issue in equine surgery: clinically necessary techniques may be supported mainly by small series and case reports, leaving room for variation in practice. (frontiersin.org)
The review may also matter outside surgery suites. For ambulatory and primary equine veterinarians, it reinforces the importance of early recognition and referral in foals with suspected umbilical infection, before disease tracks proximally and narrows treatment options. Earlier diagnosis could mean more cases remain amenable to conventional resection rather than salvage-style procedures. That’s an inference from the disease course described across the literature, rather than a direct claim of the review, but it fits the pattern outlined in the available sources. (frontiersin.org)
What to watch: The next step for this topic is better outcomes data, ideally multicenter and prospective, on survival, postoperative complications, long-term athletic function, and technique selection. Until then, this review is likely to serve as a practical reference point for clinicians managing advanced foal omphalophlebitis with limited evidence and little margin for error. (frontiersin.org)