🪨 Laparoscopic Cholecystectomy Decision Simulator

Gallstones Identified on Imaging

Ultrasound finds gallstones, symptomatic or completely silent.

• 10–15%: Adult prevalence (carry gallstones)
• ~80%: Asymptomatic rate (never develop symptoms)
• Cholesterol: Dominant stone type (most common composition)
• 1–2%: Annual symptom onset (become symptomatic per year)

Silent stones are common

Most gallstones cause no symptoms at all.

Ultrasound is first-line

Transabdominal ultrasound detects stones with high accuracy.

Silent stones rarely need treatment on their own.

Stone size varies widely

Stones range from sand-like grains to golf balls.

Biliary Colic Frequency Assessed

Episode frequency over time guides how urgent care is.

• 30–60 min: Typical colic duration (per episode)
• ~70%: Recurrence after first attack (within one year)
• Fatty meals: Common trigger (classic symptom pattern)
• 2+: Episodes before referral (usually prompts review)

Colic follows fatty meals

Pain often strikes after a rich or fatty meal.

Frequency predicts recurrence

More frequent colic strongly predicts future attacks.

Frequent colic raises surgical priority sharply.

Diaries track true burden

Symptom diaries reveal patterns imaging alone misses.

Complication Risk Evaluated

Cholecystitis, pancreatitis, and duct stones raise the stakes.

• 1–3%: Acute cholecystitis risk (per symptomatic year)
• ~5%: Gallstone pancreatitis risk (with migrating stones)
• 10–15%: Choledocholithiasis rate (of symptomatic cases)
• >20mm: Higher-concern stone size (flags added risk)

Cholecystitis signals inflammation

Persistent pain and fever suggest gallbladder inflammation.

Pancreatitis is the severe risk

A migrating stone can block the pancreatic duct.

Untreated complications can turn into surgical emergencies.

Larger stones raise stakes

Bigger stones correlate with higher complication odds.

Watchful Waiting vs Surgery

Symptom burden and complication risk get weighed against surgery.

• <1%: Elective surgery risk (major complication rate)
• ~30%: Watchful-waiting failure (eventually need surgery)
• ~5%: Laparoscopic conversion rate (to open surgery)
• 1–2 wks: Typical recovery (after laparoscopy)

Asymptomatic stones often wait

Silent stones rarely justify immediate surgery.

Symptomatic stones favor surgery

Recurrent colic tips the balance toward operating.

Surgery prevents future emergencies but carries its own risk.

Risk tolerance shapes choice

Patient fitness and preference weigh into the decision.

Surgical Decision Made

Cholecystectomy is scheduled, or care shifts to monitoring.

• ~95%: Laparoscopic success rate (completed minimally invasive)
• <24 hrs: Hospital stay (uncomplicated cases)
• 0%: Symptom recurrence after removal (gallbladder-related symptoms)
• ~1 week: Return to activity (typical timeline)

Laparoscopy is standard

Four small incisions replace open surgery today.

Deferral means monitoring

Watchful waiting continues with periodic symptom check-ins.

The scale settles wherever risk outweighs benefit.

Decision is individualized

Every recommendation weighs symptoms, risk, and preference.