Laparoscopy and Hysteroscopy in Gynaecology
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Direct answer
Laparoscopy establishes a carbon dioxide pneumoperitoneum at 12-15 mm of mercury and works through 5-10 mm ports — diagnostically for endometriosis staging, infertility, chronic pelvic pain and ectopic pregnancy, operatively for hysterectomy, cystectomy, myomectomy and tubal surgery — while hysteroscopy, the gold standard for intrauterine pathology, distends the cavity with normal saline (bipolar and mechanical surgery) or glycine 1.5 per cent (monopolar resectoscopes). Complications follow physics: major vessel injury on entry (rare but lethal), bowel and bladder injury, embolism and port-site hernia in laparoscopy; perforation, bleeding and glycine toxicity — dilutional hyponatraemia with hyperammonaemic encephalopathy — in hysteroscopy, prevented by fluid-balance accounting and hard stops.
What you must remember
- Entry options: Veress and trocar at the umbilicus, the open Hasson technique for the adhered abdomen, and Palmer's point (left upper quadrant) after previous midline surgery — the standard exam trio.
- Laparoscopic complications: major vessel injury about 0.3 per 1000 (sudden collapse with retroperitoneal swelling — laparotomy and vascular surgery), bowel and bladder injury 1-3 per 1000, carbon dioxide embolism, hypercarbia, shoulder-tip pain (C3-C5 phrenic irritation), port-site hernia.
- Advantages and contraindications: less pain, shorter stay, better visualisation — against haemodynamic instability, dense adhesions, advanced malignancy (relative).
- Hysteroscopic distension media: normal saline for bipolar and mechanical systems (danger is volume overload); glycine 1.5 per cent for monopolar resectoscopes (non-conductive, hence hyponatraemia risk); pressures below the mean arterial pressure.
- Fluid discipline and glycine toxicity: record input-output every 10 minutes during resectoscopy; stop at a glycine deficit of about 750-1000 mL (saline 2500 mL), check sodium, and treat toxicity — restlessness, confusion, visual disturbance, seizures — with fluid restriction, furosemide and 3 per cent saline for seizures.
- Hysteroscopy procedures: polypectomy, submucous myomectomy (transcervical resection), septal incision, adhesiolysis for Asherman syndrome; office vaginoscopic hysteroscopy ("no-touch") is expanding diagnostics.
- Perforation: the commonest operative hysteroscopy complication (fundus and cornua) — laparoscopy and observation when uncomplicated, exploration if bowel is injured.
- Laparoscopic ovarian drilling: four to six thermal points per ovary at 40 watts for 4 seconds in clomiphene-resistant polycystic ovary syndrome — ovulation with a lower multiple-pregnancy rate than gonadotrophins.
Two procedures, one safety thread
The thread running through both endoscopies is that every complication is a physics invoice. In laparoscopy the dangerous seconds are the blind ones — the Veress needle and first trocar, with the aorta a few centimetres beyond a thin wall — hence the rules: Veress at 45 degrees toward the pelvis head-down, aspiration and hanging-drop verification before insufflation, or Hasson or Palmer's point after previous surgery. The sudden collapse with a rising retroperitoneal shadow is the vascular catastrophe — immediate laparotomy, aortic compression, vascular surgery. In hysteroscopic resection the invoice is written in glycine: a monopolar resectoscope irrigating a vascular bed can absorb litres of hypotonic fluid, and the woman who was chatting becomes restless, then confused, then seizes — sodium 118, glycine toxicity. Prevention is bookkeeping (input-output every 10 minutes, stop at deficit); treatment is rapid: stop resecting, check sodium, 3 per cent saline for seizures, furosemide and fluid restriction. A uterine perforation is usually the lesser event — laparoscopic survey for bleeding and bowel, overnight observation, the resection completed another day.
India's endoscopic trajectory
Indian gynaecological endoscopy has crossed from metropolitan boutique to mainstream, unevenly: corporate and teaching hospitals run full services while a district hospital may offer only diagnostic laparoscopy — exam answer and referral reality coexist. Cost is the honest barrier: disposable trocars, morcellators and bipolar devices are out-of-pocket, pushing Indian units towards reusable instruments; insurance caps on consumables decide surgical route as often as judgement. Training is the bottleneck — FOGSI-recognised fellowships and structured minimally invasive training respond, since safe entry's learning curve is where complications cluster. Historical pride point for viva: modern operative laparoscopy was born in gynaecology — Kurt Semm, a German gynaecologist, performed the first laparoscopic appendicectomy in 1980 to a reception of disbelief. The Indian exam favourites: why carbon dioxide (highly soluble, rapidly excreted, less embolism risk), the glycine toxicity triad, and the fluid deficit stop rule.
Frequently asked questions
Why is carbon dioxide the standard insufflation gas?
It is highly blood-soluble and excreted by the lungs, so bubbles are absorbed rather than persisting — embolism is rarer and smaller than with air or nitrous oxide.
How is safe entry achieved after previous abdominal surgery?
Open Hasson or Veress at Palmer's point (left upper quadrant), away from expected midline adhesions — never blind umbilical entry.
What is glycine toxicity and how is it recognised?
Absorbed hypotonic glycine 1.5 per cent causing dilutional hyponatraemia with hyperammonaemia — restlessness, visual disturbance, seizures during or after resectoscopy; treat with 3 per cent saline, furosemide, fluid restriction.
At what fluid deficit is hysteroscopic surgery stopped?
At about 750-1000 mL of glycine (about 2500 mL of normal saline), with immediate sodium assessment — a hard stop, not a judgement call.
How is a routine hysteroscopic perforation managed?
Stop, assess laparoscopically for bleeding and bowel injury; uncomplicated fundal perforations are observed overnight, lateral or bowel injuries need repair.