Systematic review of effects of pregnancy on breast and abdominal contour after TRAM/DIEP breast reconstruction in breast cancer survivors

DIEP Donor Site Satisfaction between Patients with and without History of Pregnancy

BACKGROUND

 With the success of free autologous breast reconstruction, the abdominal donor site is now an important consideration, especially in patients of childbearing age. In our institution, there are increasing patients who have successfully undergone the deep inferior epigastric artery perforator (DIEP) flap despite previous pregnancy. This study aims to answer questions on the effect of the donor site on pregnancy and vice versa.

METHODS

 A retrospective cohort study was conducted to identify breast cancer patients who received a free DIEP flap for breast reconstruction from January 2018 to August 2020. Patients were allocated to two groups according to whether they had prior pregnancies with successful deliveries. Demographics, flap-related parameters, surgical outcomes on breast and abdomen, and patient-reported outcome (Breast-Q questionnaire) were analyzed. Patients were excluded if follow-up time was less than 1 year, or if there was incomplete medical records or Breast-Q replies.

RESULTS

 Ninety-nine of 116 patients had had successful pregnancies with delivery, 17 of them remained nulliparous. No statistically significant differences existed between groups regarding demographic data, flap-related parameters, surgical outcomes on breast and abdomen. Nulliparous patients exhibited significantly lower score in physical well-being in the abdomen domain compared with delivery-experienced patients (62.1 vs. 73.4, p = 0.025). Significantly, nulliparous patients felt more tightness and pulling of the abdominal wall than the delivery-experienced patients (2.9 vs. 3.7; p = 0.05 and 3.5 vs. 4.0; p = 0.04).

CONCLUSION

 Free DIEP flap can be transferred safely in nulliparous patients despite a slight increase in abdominal tightness and abdominal pulling. Precise flap design and surgical approaches may help to minimize the abdominal discomfort especially on young, normal body mass index, and nonchildbearing patients.

Pregnancy one month post abdominoplasty: a case report and review of literature

Pregnancy post abdominoplasty may ruin the aesthetic result of the operation and may harm both mother and child. This report is about a 39-year-old lady who got pregnant a month after her abdominoplasty. Her pregnancy was uneventful, and she delivered a healthy baby at the gestational age of 38 weeks.

Relationship between Preoperative Abdominal Wall Strength and Bulging at the Abdominal Free Flap Donor Site for Breast Reconstruction

BACKGROUND

Abdominal bulging at the donor site of free abdominal flaps for breast reconstruction is a common postoperative complication. In addition to the thickness of abdominal muscles, the authors identified the rectus abdominis diastasis as an important factor that compromises abdominal wall strength. This study aimed to assess the relationship between preoperative abdominal wall strength and postoperative abdominal bulging.

METHODS

A total of 224 patients were enrolled in this study. Patient demographics, the rectus and lateral abdominis muscle thicknesses, and the rate of rectus abdominis diastasis were compared (with versus without bulging). Muscle thickness and rectus abdominis diastasis were investigated by preoperative computed tomography.

RESULTS

The group with bulging consisted of 32 patients (14.3 percent), whereas the group without bulging consisted of 192 patients. The group with bulging had a significantly higher gestational history rate. The thickness of the rectus abdominis muscle in the group with bulging was significantly thinner (median, 8.6 mm versus 10.5 mm; p < 0.001) and the rate of rectus abdominis diastasis was significantly higher (78.1 percent versus 32.3 percent; p < 0.001). There were no significant differences with respect to the thickness of the lateral abdominal muscle and the other factors (i.e., age, body mass index, history of laparotomy. and operative details).

CONCLUSIONS

Because the diagnosis of abdominal bulging was based on severity, the rate may be high compared to that reported from previous studies. Because the factor of gestational history correlated to thickness of the rectus abdominis muscle and rectus abdominis diastasis, this factor influenced the occurrence of abdominal bulging. Patients with a thin rectus abdominis muscle and rectus abdominis diastasis were at higher risk of abdominal bulging.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Risk, III.

Is Pregnancy Following a TRAM or DIEP Flap Safe? A Critical Systematic Review and Meta-analysis

BACKGROUND

Previous data were not conclusive on the safety of gestation in patients whose abdominal flaps were earlier harvested. We performed a meta-analysis to evaluate the abdominal wall complications and birth mode of pregnancy in post-TRAM or post-DIEP harvested individuals.

METHODS

A literature search was performed using the PubMed, Embase, Scopus, and Google scholar database. Heterogeneity was statistically analyzed, and random effect models were applied. Publication bias was assessed by funnel plot.

RESULTS

We included 25 papers that captured 56 patients giving birth to 69 healthy babies after elevation of abdominally based flaps, with a pooled abdominal complication rate of 0.00-0.09. The complication incidence in TRAM group was 0.01 (95% CI = [0.00-0.14%]) while 0.00 in the DIEP group (95% CI = [0.00-0.26%]). Discrepancies in incidence following unilaterally or bilaterally based TRAM flaps, following free or pedicled TRAM flaps, following primary sutured or mesh strengthened fascia, following MS free TRAM or conventional free TRAM could not be calculated as statistically significant. TRAM group and DIEP group patients had identical birth modes.

CONCLUSIONS

The present meta-analysis did not detect evidence that abdominal walls with the prior harvest of abdominal flaps could affect the process of pregnancy or contraindicate vaginal delivery. No abdominal hernia or bulge occurred with post-DIEP pregnancies. However, such conclusions need to be substantiated by larger sample studies.

LEVEL OF EVIDENCE III

This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine Ratings, please refer to Table of Contents or online Instructions to Authors www.springer.com/00266 .

Pregnancy after abdominoplasty with mesh placement: A case report

A 32-year-old Caucasian female, who had an abdominoplasty with sublay mesh placement for rectus abdominis diastasis becamepregnant one year later. The gestation was uneventful and the baby was born healthy after 40 weeks of pregnancy. During and after the pregnancy the patient's abdomen had been evaluated intensively and there was no recurrence of rectus abdominis diastasis. In this particular case the tissues of the abdominal wall elongated as the foetus grew larger, except for the site where the rectus diastasis has been corrected. The experience with this particular case does not assure that all patients will have the same uneventful outcomes as described. Nonetheless, it shows that pregnancy after abdominoplasty with mesh placing for rectus abdominis diastasis can be safe for both mother and child. However, each patient must be informed about the risks of pregnancy in this particular situation and professional follow-up is mandatory when pregnancy does occur. This is, as far as we know, the first case report of an uneventful pregnancy after rectus abdominis diastasis repair with the placement of a sublay mesh and abdominoplasty.

Does Pregnancy Predict Incisional Hernia Repair after Abdominally Based Autologous Breast Reconstruction? A Retrospective Review of 890 Free Flaps

BACKGROUND

The abdomen is a common donor site in autologous breast reconstruction. The authors aimed to determine whether pregnancy following autologous breast reconstruction increases the risk of incisional hernia repair.

METHODS

All women younger than 50 years who underwent abdominally based autologous breast reconstruction between 2005 and 2016 were identified. Patients with less than 20 months of follow-up were excluded. Demographics, operative details, outcomes, incisional hernia repair occurrence, and pregnancy history were analyzed.

RESULTS

Five hundred nineteen patients underwent autologous breast reconstruction with 890 free flaps [free transverse rectus abdominis musculocutaneous, n = 645 (72.5 percent); deep inferior epigastric perforator, n = 214 (24.0 percent); pedicled transverse rectus abdominis musculocutaneous, n = 18 (2.0 percent); and superficial inferior epigastric artery, n = 13 (1.5 percent)]. Average follow-up was 57.2 months (range, 9.5 to 312.8 months). Fourteen women became pregnant, with mean postpregnancy follow-up of 31.2 months (range, 5.4 to 70.8 months; pregnancies, n = 18). Age of nonpregnant patients (mean, 43.1 years; range, 20.6 to 50.0 years) was higher than that of pregnant patients (mean, 32.1 years; range, 27.1 to 37.9 years) (p < 0.0001); in univariate analysis, age was not associated with incisional hernia repair. Twelve pregnant patients (66.7 percent) underwent cesarean delivery. No statistically significant differences existed between groups regarding flap type and closure technique. Zero pregnant patients underwent incisional hernia repair, compared with a 6.1 percent incisional hernia repair rate in nonpregnant patients (p = 0.339). In multivariate analysis, prior incisional hernia, hematoma, fascial dehiscence, and reoperation predicted incisional hernia repair.

CONCLUSION

The authors' results demonstrate that there may not be an increased risk of incisional hernia repair associated with pregnancy following autologous breast reconstruction despite additional weakening of the abdominal wall.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Risk, II.

Pregnancy following Unilateral Immediate Breast Reconstruction with Titanized Polypropylene Mesh (TiLOOP(R) Bra) without Compromising the Result

Immediate breast reconstruction after mastectomy due to cancer or as a prophylactic treatment is widely preferred to avoid psychosocial distress, poor body image, and diminished sexual well-being. An increasing number of women undergoing breast reconstruction are in childbearing age; however, only limited data are available on the cosmetic outcome of patients undergoing implant-based breast reconstruction with a surgical mesh and subsequent pregnancy. This is a case report of a female patient who underwent unilateral implant-based breast reconstruction with a titanized surgical mesh implant (TiLOOP Bra). Twenty-two months after reconstruction, the woman delivered a healthy child. No adverse events occurred. The patient breastfed with the contralateral breast. The cosmetic result and patient-reported outcome was excellent. Pregnancy after breast reconstruction with a synthetic surgical mesh is not contradictory to an excellent cosmetic outcome.