CESAREAN SECTION When, Why and How Matthew Snyder, DO, Maj, USAF, MC Nellis AFB, NV OVERVIEW Indications Instruments Procedure Post-operative management Post-partum counseling C/S INDICATIONS - FETAL Fetal Macrosomia (over 5000g, GDM – 4500g) Multiple Gestations Fetal Intolerance to Labor Malpresentation / Unstable Lie – Breech or Transverse presentation C/S INDICATIONS - FETAL Non-reassuring Fetal Heart Tracing Repetitive Variable Decelerations Repetitive Late Decelerations Fetal Bradycardia Fetal Tachycardia Cord Prolapse C/S INDICATIONS - MATERNAL Elective Repeat C/S Maternal infection (active HSV, HIV) Cervical Cancer/Obstructive Tumor Abdominal Cerclage Contracted Pelvis Congenital, Fracture Medical Conditions Cardiac, Pulmonary, Thrombocytopenia C/S INDICATIONS – MATERNAL/FETAL Abnormal Placentation Placenta previa Vasa previa Placental abruption Conjoined Twins Perimortem Failed Induction / Trial of Labor C/S INDICATIONS – MATERNAL/FETAL Arrest Disorders Arrest of Descent (no change in station after 2 hours, <10 cm dilated) Arrest of Dilation (< 1.2 cm/hr nullip; < 1.5 cm/hr multip) Failure of Descent (no change in station after 2 hours, fully dilated) C/S INDICATIONS – MATERNAL/FETAL SURGICAL INSTRUMENTS Uses: Adson: Skin Bonney: Fascia DeBakey: soft tissue, bleeders Russians: uterus SURGICAL INSTRUMENTS Uses: Allis-Adair: tissue, uterus Pennington: tissue, uterus These are suitable for hemostasis use SURGICAL INSTRUMENTS Uses: Kocher clamp: fascia, thicker tissues SURGICAL INSTRUMENTS Uses: Richardson: general retractor Goelet: subQ retractor Fritsch bladder blade SURGICAL INSTRUMENTS Uses: Mayo, curved: fascia Metzenbaum, curved: soft tissue Bandage scissors: cord cutting, uterine extension CESAREAN SECTION: INCISION TO UTERUS Preparation: Ensure SCDs applied Setup bovie and suction Test pt by pinching on either side of incision and around navel with Allis clamp Lap sponge in other hand CESAREAN SECTION: INCISION TO UTERUS Determined by previous mode of delivery/hx and body habitus – Pfannenstiel most common – 3 cm (2 fingerbreadths) above symphysis CESAREAN SECTION: INCISION TO UTERUS Be cautious of the Superficial Epigastric vessels CESAREAN SECTION: INCISION TO UTERUS Rectus fascia incised in midline and extended bil. with Mayo scissors/scalpel Elevate superior and inferior edges of rectus fascia with Kocher clamps, dissect muscle from fascia at linea alba. CESAREAN SECTION: INCISION TO UTERUS Separate rectus fascia to enter peritoneum Bluntly with finger Using two hemostats to elevate peritoneum and incise with Metzenbaum scissors **Be careful of adhesions!!! – transilluminate at all times!!!** CESAREAN SECTION: UTERINE INCISION TO DELIVERY Vesicoperitoneum reflexion entered with Metz and extended bil. for bladder flap CESAREAN SECTION: UTERINE INCISION TO DELIVERY Score lower uterine segment with scalpel and continue in midline to avoid uterine aa. Extend bluntly or with bandage scissors. CESAREAN SECTION: UTERINE INCISION TO DELIVERY Once delivering hand inserted, bladder blade removed Bring head up to incision by flexing fetal head, without flexing wrist to avoid uterine incision extensions Once infant delivered, collect cord gases if desired and cord blood sample Deliver placenta manually or with uterine massage CESAREAN SECTION: UTERINE CLOSURE If exteriorized, use a moist lap sponge to wrap uterus and retract once placenta is delivered Close uterine incision with locking suture (usually 0-Vicryl or 1Chromic) Perform imbricating stitch CESAREAN SECTION: CLOSURE Examine adnexa, irrigate rectouterine pouch and/or gutters and re-examine uterine incision Ensure hemostasis of rectus then close fascia with non-locking suture to avoid vessel strangulation Close subcut. space if over 2 cm, then skin If needed, clear lower uterine segment and vagina of clots once skin is closed and dressed POST-OPERATIVE CARE Pt. must urinate within four hours of Foley removal, otherwise replace Foley for another 12 hours Any fever post-op MUST be investigated Wind: Atelectasis, pneumonia Water: UTI Walking: DVT, PE, Pelvic thromboembolism Wounded: Incisional infection, endomyometritis, septic shock POST-OPERATIVE CARE In the first 12-24 hours, the dressing may become soaked with serosanguinous fluid – if saturated, replace dressing otherwise no action needed After Foley is removed (usually within 12 hours postop), encourage ambulation of halls, not just room Dressing may be removed in 24-48 hours post-op (attending specific), use maxipad Ensure pt. is tolerating PO intake, urinating well and has flatus before discharge Watch for post-op ileus DELAYED COMPLICATIONS Subsequent Pregnancies Uterine rupture/dehiscence Abnormal placental implantation (accreta, etc) Repeat Cesarean section Adhesions Scaring/Keloids WOUND DEHISCENCE Noted by separation of wound usually during staple removal or within 1-2 weeks post-op Must explore entire wound to determine depth of dehiscence (open up incision if needed) – if through rectus fascia, back to the OR If dehiscence only in subQ layer, debride wound daily with 1:1 sterile saline/H2O2 mixture and pack with gauze May use prophylactic abx – Keflex, Bactrim, Clinda KEY: Close f/u and wound exploration POST-PARTUM COUNSELING: PHARM Continue PNV Colace Motrin 800 mg q8 Percocet 1-2 tabs q4-6 for breakthrough OCP (start 4-6 wks post-partum) POST-PARTUM COUNSELING: ACTIVITY No lifting objects over baby’s wt. Continue ambulation No strenuous activity NOTHING by vagina (sex, tampons, douches, bathtubs, hot tubs) for 6 wks!! POST-PARTUM COUNSELING: INCISION CARE Only showers – light washing If pt has steristrips, should fall off in 7-10 days, otherwise use warm, wet washcloth to remove If pt has staples – removal in 3-7 days outpt. Most attendings will have pt f/u in office in about 2 wks for wound check POST-PARTUM COUNSELING: NOTIFY MD/DO Fever (100.4)/Chills HA Vision changes RUQ/Epigastric pain Mastitis sx Increasing abd. pain Erythema/Induration/ increasing swelling around incision Purulent drainage Serosanguinous drainage over half dollar size on pad Wound separation Purulent vaginal discharge Vaginal bleeding over 1 pad/hr or golf ball size clots Calf tenderness SUMMARY Indications Surgical Technique Post-operative management Post-operative Complications Post-partum counseling REFERENCES Cunningham, F., Leveno, Keith, et al. Williams Obstetrics. 22nd ed., New York, 2005. Gabbe, Steven, Niebyl, Jennifer, et al. Obstetrics: Normal and Problem Pregnancies. 4th ed., Nashville, 2001. Gilstrap III, Larry, Cunningham, F., et al. Operative Obstetrics. 2nd ed., New York, 2002. www.uptodateonline.com