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Published on: October 25, 2015
Pre-term and particularly pre-labor cesarean section to avoid complications of gastroschisis
T C Moore1, D L Collins, V Catanzarite
1Division of Pediatric Surgery Harbor-UCLA Medical Center 1000 West Carson Street, Torrance, California 90509, USA.
Insights
Pre-labor cesarean sections (C-sections) significantly reduce severe gastroschisis (GS) complications like "peel" and complicated GS (CGS) by eliminating labor-induced damage. This approach can prevent gastroschisis from being a major cause of short-gut syndrome.
Area of Science:
- Neonatal surgery and pediatric surgery
- Maternal-fetal medicine
- Congenital anomalies
Background:
- Gastroschisis (GS) is a major cause of short-gut syndrome (SGS), prolonged NICU stays, and requires total parenteral nutrition (TPN).
- Key complications of GS include the "peel" (gut enlargement/rigidity) and complicated GS (CGS: atresia, stenosis, necrosis, perforation), occurring in 100% and ~20% of cases respectively without pre-labor C-sections.
- These complications lead to difficult surgical repairs, gut ischemia, necrotizing enterocolitis (NEC), and prolonged hospitalizations.
Purpose of the Study:
- To evaluate the efficacy of pre-term and particularly pre-labor (PTPL) cesarean section (C-section) in preventing severe gastroschisis (GS) complications.
- To analyze the impact of labor onset on the development of the "peel" and complicated GS (CGS).
- To underscore the importance of PTPL C-section in managing in-utero diagnosed gastroschisis.
Main Methods:
- Retrospective analysis of personal experience with 77 gastroschisis (GS) cases (dating back to 1951).
- Literature review of 320 GS cases, comparing outcomes between infants born after labor onset versus those born via pre-term, pre-labor C-section (PTPL C-section).
- Statistical analysis (chi-square test) to determine the significance of reduced complication rates.
Main Results:
- Infants born after labor onset (vaginal or C-section) showed significant "peel" formation (100%) and CGS incidence (19.1%).
- In contrast, infants born via PTPL C-section (33 cases) had no "peel" and only one case of CGS (3.0%), a statistically significant reduction (P < 0.05).
- Excluding a single CGS case with a minimal defect, the CGS rate in the PTPL group was 0% (P < 0.007), demonstrating 100% elimination of the "peel".
Conclusions:
- PTPL C-section virtually eliminates the disabling "peel" and significantly reduces complicated GS (CGS), thereby removing GS as a major cause of short-gut syndrome (SGS).
- Labor onset is a critical factor in the development of both "peel" and CGS, highlighting the need for vigilant monitoring for occult labor.
- Elective PTPL C-section, potentially combined with techniques like the Bianchi approach and epidural anesthesia, offers a pathway to improved outcomes, reduced costs, and minimized patient distress.
Abstract:
The marked advantages and merit of pre-term and particularly pre-labor (PTPL) cesarean section (C-section) in the avoidance, and indeed, virtual elimination of severely disabling gastroschisis (GS) complications in infants diagnosed prior to birth by ultrasound has unfortunately remained controversial in the 10 to 12 years since it was first reported and strongly recommended by numerous authors. During this period, GS has remained one of the four major causes of the short-gut syndrome (SGS) in infancy and childhood and a major cause of prolonged, costly, complicated, and hazardous neonatal intensive care unit stays with requirements for total parenteral nutrition (TPN). The most serious and frequent complications of GS in infants born without PTPL C-section are the occurrence of the "peel", which greatly enlarges and rigidifies the eviscerated gut, and of "complicated GS" (intestinal atresia/s, stenosis, necrosis, perforations) (CGS). The "peel" occurs in 100% of these cases and CGS in approximately 20%. "Peel" enlargement and rigidification of eviscerated intestine in the presence of a reduced peritoneal cavity causes great difficulty in covering the eviscerated, enlarged, and rigidified gut with abdominal wall, skin, a prosthesis, etc., and frequently produces gut ischemia from excessive pressure, which may lead to necrotizing enterocolitis (NEC) and SGS as well as prolonged hospital stays. The presence of a "peel" greatly complicates the hazards of dealing with cases of CGS, as resection and anastomosis are virtually impossible in the presence of a "peel." The authors report personal experience with 77 cases of GS dating as far back as 1951; 44 of the infants were born after the onset of labor by vaginal or C-section delivery and all had some degree of "peel" formation. Of 320 cases from the literature (including some of the cases reported here), 61 (19.1%) involved CGS. Of the 33 cases born PT, and especially PL, there were no cases of "peel" and only 1 case of CGS (3.0%). This infant had a single atresia associated with a very small (1 cm) defect in the abdominal wall and no labor-induced "peel," which was easily and successfully repaired by resection and anastomosis. The 6.4-fold reduction in the occurrence of CGS by PTPL C-section (3.0% vs 19.1%) was statistically significant by the chi-square test (P < 0.05), as was the 100% elimination of the disabling "peel." If the single case of CGS associated with a very small defect and no labor or labor-associated "peel" is eliminated, the incidence of CGS in the remaining PTPL group of 32 cases falls to 0 (0% versus 19.1%, P < 0.007). PT and especially PL C-section may be expected to virtually eliminate "peel" formation and CGS and to remove GS as one of the four major causes of SGS. The findings of this report that PT labor prior to PT C-section may result in both "peel" formation and CGS further solidifies the role of labor in the production of both the "peel" and the equally disabling CGS. Failure to appreciate the central role of labor in GS complications has doubtless contributed to the persistent controversy concerning the value and importance of PTPL C-section for gastroschisis diagnosed in utero. The pediatric surgeon has an important responsibility with the obstetrician to monitor the possible occurrence of occult labor in the waning weeks of pregnancy and be prepared to do a prompt C-section if it occurs and there is adequate lung maturity. The achievement of "peel"- and CGS-free gut would greatly facilitate the use of the new Bianchi technique of gut reduction without anesthesia. The combination of the use of epidural anesthesia for the elective PTPL C-section with the Bianchi approach would spare both mother and baby any untoward effects of general anesthesia and present the potential for massive reductions in hospital costs with minimal patient manipulation and disturbance. For infants born with labor-associated "peel," re-evaluation of the suitability and effectiv

