210 likes | 558 Views
Cesarean Delivery in the Obese Patient. Alexander F. Burnett, MD Division Gyn Oncology UAMS. And she’s pregnant… And she’s in early labor… And she’s breech… And your partners are nowhere to be found…. Objectives. 1. What is the problem? 2. Incision choice in the obese patient
E N D
Cesarean Delivery in the Obese Patient Alexander F. Burnett, MD Division Gyn Oncology UAMS
And she’s pregnant… And she’s in early labor… And she’s breech… And your partners are nowhere to be found…
Objectives • 1. What is the problem? • 2. Incision choice in the obese patient • 3. Closure techniques • 4. Suture material • 5. To drain or not to drain…
The Problem: Obesity is an independent risk factor for post-operative infectious morbidity InfectionNo Infection Emergent c/s BMI (kg/m2) 36.6 32.2 p<.001 Obesity % 81.8 57.3 p<.001 Elective c/s BMI 38.9 32.2 p<.003 Obesity % 89.5 58.0 p<.04 Thickness of Subcutaneous Tissue 4.1 cm 2.3 cm p=.04 Myles Ob Gyn 2002;100:959 Vermillion Ob Gyn 2000;95:923
Transverse vs Vertical Incisions in Abdominal Surgery 11 randomized + 7 retrospective studies Procedures: cholecystectomy, AAA, trauma, major laparotomy: Significant increase in pulmonary complications, burst abdomen, incisional hernia in vertical group No difference in exposure Time to open : V 9.9 min T 13.9 min p<0.05 Grantcharov Eur J Surg 2001;167:260
Vertical vs Transverse in Obese C/S Retrospective review of 239 women undergoing primary C/S with BMI > 35 Transverse(213)Vertical(26) Wound breakdown 2% 15% p =0.003 Wound infection 7% 19% p = 0.04 Endometritis 15% 15% p = 0.98 Chorioamnionitis 15% 3% p = 0.11 Wall Ob Gyn 2003;102:952
High Transverse vs Low Transverse Case-control retrospective review of C/S for women >150% ideal body weight Supraumbilical Pfannenstiel 15 54 Avg wt lbs 329 + 60 246 + 34 No difference in infectious or non-infectious complications Houston Am J Ob Gyn 2000;182:1033
The Baby Is Out…Now What? Is there a need for visceral peritoneum closure? 549 Randomized to closure vs nonclosure Closure group had significantly more: Febrile episodes Cystitis Operative time Length of stay Conclusion: do not close visceral peritoneum Nagele Am J Ob Gyn 1996;174:1366
Fascial Closure Meta-analysis of midline abdominal closures: 15 studies/6566 patients revealed Continuous suture vs interrupted had no difference in outcomes Lowest incisional hernias with slowly absorbable and non-absorbable vs rapidly absorbable Non-absorbable had increased wound pain and suture sinus formation over slowly absorbable Van ‘t Riet B J Surg 2002;89:1350
Wound Healing 1st phase: 1-4 d exudative phase no wound strength 2nd phase: 5-20 d proliferative phase connective tissue repair regains 15-30% strength delayed if infection period of hernia initiation 3rd phase: 21 d-yrs tissue remodeling regains ~ 80% strength
What About SubQ? 245 women with at least 2 cm subcut fat were randomized to closure or non-closure of Camper fascia with running 3-0 polyglycolic acid Closure Non-closure Seroma 5.1% 17.2% p=.002 Hematoma 3.4% 1.6% p=NS Infection 6.0% 7.8% p=NS Disruption 14.5% 26.6% RR 0.5 (CI=0.3-0.9) Naumann Ob Gyn 1995;85:412
SubQ Closure vs Drainage 76 women with > 2cm subcut randomized to running 3-0 vs drain vs nothing SutureDrainNone Infection 7.7% 0 3.9% Separation 15.4% 4.2% 26.9% Drain group had significantly lower rate of complications compared to non-closure group Allaire J Repro Med 2000;45:327
SubQ Closure vs Drainage 2 964 women with subcut > 2 cm s/p C/S randomized to subcut 3-0 running vs non-closure vs 7 mm closed drain. SutureDrainNone Wound disruption 9.9% 9.7% 8.7% No difference in seroma/hematoma/infection rate Magann Am J Ob Gyn 2002;186:1119
Antibiotic Prophylaxis for C/S Cochrane review: 81 trials with 12,000 women worldwide. Contained elective C/S and non-elective C/S. Antibiotic treated women RR: Endometritis 0.39 (0.31-0.43) Wound infection 0.41 (0.29-0.43) Smaill Cochrane Library 2004;4
Take-Home Conclusions: • Obese C/S patients at significant risk for infection and wound disruption • Transverse incision has fewer complications at cost of more time to entry • Supraumbilical transverse incision is an option • Do not need to close the visceral peritoneum • Close the fascia with continuous slowly absorbable suture • There may be a benefit to subcutaneous closure vs drainage in the obese patient • Antibiotics should be used in these patients to reduce post-operative incision complications