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Myomectomy — Steps by Approach
Myomectomy is removal of uterine fibroids (leiomyomas) while preserving the uterus. The approach depends on fibroid size, number, location, and surgeon experience.
1. Abdominal (Open) Myomectomy
- Incision — Low transverse (Pfannenstiel) or vertical midline laparotomy incision
- Exposure — Retract bowel superiorly; identify and assess fibroid locations
- Vasopressin injection — Dilute vasopressin injected into the myometrium overlying the fibroid to reduce bleeding
- Uterine incision — A transverse or vertical incision is made over the fibroid through the serosa and myometrium
- Enucleation — The fibroid is dissected bluntly and sharply from the pseudocapsule using traction-countertraction
- Hemostasis — Bleeding vessels in the myometrial bed are cauterized or suture-ligated
- Closure of the uterine defect — The myometrium is closed in multiple layers with delayed-absorbable sutures to eliminate dead space; the serosa is then closed
- Morcellation (if needed) — Large fibroids may be cut into pieces (morcellated) for removal through the incision
- Anti-adhesion measures — Oxidized regenerated cellulose or other adhesion barriers may be placed
- Abdominal closure — Fascia, subcutaneous tissue, and skin are closed in layers
2. Laparoscopic Myomectomy
- Port placement — Based on fibroid size/position; typically a periumbilical camera port + 2–3 accessory ports. For right-handed surgeons, two ports on the patient's right side (a 12-mm port medial to the iliac crest for suture access; a 5-mm lateral port near the umbilicus)
- Survey — Laparoscopic inspection of the pelvis to identify all fibroids
- Vasopressin injection — Injected via laparoscopic needle into the overlying myometrium
- Uterine incision — Ultrasonic blade or monopolar electrosurgery used to make a transverse incision over the fibroid
- Enucleation — Fibroid dissected out from the myometrium laparoscopically with traction using a tenaculum or corkscrew device
- Closure of myometrial defect — Multiple layers of running laparoscopic suture (the most technically demanding step; robotic assistance may facilitate this)
- Morcellation and extraction — Fibroid removed through ports using electromechanical or hand-held morcellator, or via a contained bag morcellation system; tissue sent to pathology
- Peritoneal closure and desufflation
Key consideration: Fluid management is critical intraoperatively. Laparoscopic approach is associated with less blood loss, less postoperative pain, and faster recovery compared to laparotomy.
3. Vaginal Myomectomy
Used for cervical/intracavitary fibroids prolapsing through the cervix.
- Lateral cervical sutures — Placed at 3 and 9 o'clock in the proximal cervix to occlude the lower uterine artery branches
- Vasopressin injection — Into the stalk to reduce bleeding
- Stalk ligation — One or two Endoloop sutures passed around the stalk and secured proximally
- Transection — Stalk cut distal to the ligation (sharply or with electrosurgery)
- Hemostasis — If bleeding persists after removal, hysteroscopic bipolar cautery or uterine packing with a Foley balloon is used
4. Hysteroscopic Myomectomy
Used for Type 0, Type 1, and selected Type 2 submucosal fibroids.
Method A — Electrosurgery:
- Operative hysteroscope introduced with distension media
- Small resecting loop (monopolar or bipolar) shaves the fibroid down to its base
- Polyp forceps retrieves shaved tissue fragments from the cavity
- Tissue sent to pathology
Method B — Mechanical Tissue Removal System:
- Hysteroscope with mechanical/electrosurgical morcellator introduced
- Suction draws fibroid to the cutting end
- Fibroid cut and removed in small segments via suction
Critical safety parameter: Continuous monitoring of intrauterine fluid deficit throughout.
- Isotonic fluids (normal saline, LR): deficit limit ≤ 2,500 mL
- Hypotonic fluids (mannitol, used with monopolar): stricter limits due to risk of hyponatremia
- Excess fluid absorption → fluid overload, pulmonary edema, electrolyte imbalance
Hysterectomy — Steps by Approach
Hysterectomy is surgical removal of the uterus. Key decisions: total (corpus + cervix) vs. subtotal/supracervical (corpus only); and whether to include salpingectomy ± oophorectomy.
Total Abdominal Hysterectomy (TAH)
Steps follow the anatomical sequence from the round ligaments downward:
| Step | Action |
|---|
| 1. Incision | Low transverse (Pfannenstiel) or vertical midline laparotomy |
| 2. Exposure & survey | Identify uterus, adnexa, bladder, ureters, and bowel |
| 3. Round ligament division | Grasped laterally, clamped, and divided; ligated with delayed-absorbable suture |
| 4. Broad ligament incision | Anterior leaf incised medially toward the internal cervical os to develop the bladder flap |
| 5. Adnexa (if removing ovaries/tubes) | Posterior broad ligament incised; ureters identified; infundibulopelvic (IP) ligament doubly clamped with curved Heaney/Zeppelin clamps and divided; pedicles doubly ligated |
| 5. (If preserving ovaries) | Utero-ovarian vessels clamped with Kelly/Heaney clamps, divided, and doubly ligated |
| 6. Bladder dissection | Bladder pushed off the lower uterine segment and cervix sharply with Metzenbaum scissors or electrocautery; retracted inferiorly |
| 7. Uterine vessel ligation | Curved Heaney/Zeppelin clamp placed across uterine vessels at the level of the internal os; pedicle cut and suture-ligated |
| 8. Cardinal & uterosacral ligaments | Straight Heaney/Zeppelin clamp applied serially in steps bilaterally; pedicles cut and suture-ligated until the level of the external os is clear |
| 9. Colpotomy | Curved clamps placed across the vagina just below the cervix; vagina entered sharply above the clamps; alternatively, direct sharp circumferential incision around the cervix |
| 10. Specimen removal | Uterus and cervix delivered from the vagina |
| 11. Vaginal cuff closure | Heaney transfixion stitches ligate vaginal corners; midline closed with interrupted figure-of-eight or running suture; lateral apical sutures incorporate the ipsilateral uterosacral ligament for apical support |
| 12. Abdominal closure | Peritoneum, fascia, subcutaneous tissue, and skin |
Vaginal Hysterectomy (VH)
Similar ligament-by-ligament steps but performed from below through the vagina — no abdominal incision. Preferred over laparotomy when anatomically feasible (less morbidity, shorter stay).
Laparoscopic / Robotic Hysterectomy
Steps are anatomically identical to TAH, performed under laparoscopic visualization:
- Port placement (periumbilical camera; accessory ports based on uterine size)
- Uterine manipulator placed vaginally for traction
- Round ligament sealed and divided (electrosurgical vessel sealing device)
- Broad ligament windows developed
- IP ligament or utero-ovarian vessels sealed and divided (based on oophorectomy decision)
- Bladder dissected off lower segment
- Uterine vessels sealed and divided at the isthmus
- Cardinal and uterosacral ligaments divided
- Circumferential colpotomy (using an illuminated vaginal manipulator/colpotomizer cup)
- Specimen removed vaginally or via morcellation if too large
- Vaginal cuff closed laparoscopically with running suture
- Port site closure
Robotic advantage: Improved ergonomics for suturing; comparable blood loss and hospital stay to laparoscopy; longer operating time and higher cost.
Subtotal (Supracervical) Hysterectomy
Identical steps up through division of the uterine vessels, then:
- Uterine corpus amputated at the level of the internal os
- Cervical stump oversewn
- Cervix and upper vagina are not entered; vaginal cuff closure not required
Key Differences: Myomectomy vs. Hysterectomy
| Feature | Myomectomy | Hysterectomy |
|---|
| Fertility preservation | Yes | No |
| Fibroid recurrence | Possible | Not possible |
| Operating time | Longer | Shorter |
| Blood loss | Less than hysterectomy | More |
| Uterine closure | Required | Not applicable |
| Risk of sarcoma spread via morcellation | Relevant concern | Less relevant |
— Sabiston Textbook of Surgery, p. 2797–2800; Berek & Novak's Gynecology, pp. 523–538, 1293–1297, 1493–1495