ENDOCRINOLOGY & METABOLISM Procedure

Automated Closed-Loop Insulin Delivery (Artificial Pancreas)

Automated Insulin Delivery (AID) / Artificial Pancreas closed-loop systems (Medtronic 780G / Tandem Control-IQ) integrating real-time Dexcom/Guardian CGM sensors with micro-dosing insulin pumps to optimize Time-In-Range (TIR > 70%) and eliminate hypoglycemia.

Insulin pump & closed-loop glucose systems

Clinical Overview & Disease Information

Signs & Symptoms

Early Symptoms

• Severe nocturnal hypoglycemia unawareness
• Frequent erratic blood glucose swings despite MDI injections

Common Symptoms

• Elevated HbA1c (> 8.0%) due to fear of hypoglycemia
• Dawn phenomenon with morning hyperglycemia
• High daily insulin burden

Emergency Symptoms

• Severe hypoglycemic seizure or loss of consciousness

Causes & Risk Factors

Primary Causes & Etiology

Type 1 Diabetes Mellitus with variable insulin absorption
Hypoglycemia unawareness (loss of autonomic warning symptoms)
Brittle diabetes with high glucose variability

Who is at Higher Risk?

Type 1 Diabetes patients, pediatric diabetic patients, and pregnant women requiring strict glycemic control

Diagnostic Evaluation & Testing

Diagnostic Test	Clinical Purpose / What It Shows
Dexcom G7 / FreeStyle Libre 3 CGM Data Analysis	Quantifies Coefficient of Variation (CV > 36%) and overnight hypoglycemia events
Basal Rate & Insulin-to-Carbohydrate Ratio (ICR) Profile	Establishes baseline micro-bolus and automated basal algorithm parameters

Comprehensive Treatment Options

Medtronic MiniMed 780G / Tandem Control-IQ Smart Guard Closed-Loop Initiation

Subcutaneous CGM sensor insertion, tubeless/tubed insulin pump attachment, and Smart Guard automated algorithm activation.

Key Advantages:

Increases Time-In-Range (TIR > 75-80%) while eliminating severe night-time hypoglycemia

Automates micro-bolus corrections every 5 minutes

Remote smartphone monitoring and cloud data sharing

Omnipod 5 Tubeless Automated Insulin Delivery System

Waterproof tubeless pod insulin pump attached directly to skin.

Recommended For:

Pediatric patients and active athletes desiring tubeless convenience

Advanced Medical Technologies Available in Partner Hospitals

Medtronic SmartGuard Auto Mode Algorithm Tandem Control-IQ Technology Omnipod 5 Automated System

Possible Complications If Untreated

Infusion site lipohypertrophy

Pump occlusion / ketoacidosis risk if catheter dislodges

Local skin irritation

Recovery Timeline, Diet & Lifestyle Care

Recovery Timeline

Procedure / Stage	Expected Recovery Duration
Pump Setup & Patient Training	1 to 2 days
SmartGuard Closed-Loop Algorithm Learning	7 to 14 days
Optimal TIR (> 80%) Achievement	4 to 6 weeks

Essential Lifestyle Changes

Rotate infusion set sites every 3 days
Check pump tubing for air bubbles/occlusions
Calibrate or verify CGM as needed

When to Contact a Doctor Urgently:

Unexplained blood glucose > 250 mg/dL with ketones (Catheter Occlusion)

Infusion site redness or swelling

Pump hardware alarm

Prevention & Long-Term Health

Rotate infusion catheter site every 3 days to prevent lipohypertrophy

Frequently Asked Questions

How does an artificial pancreas closed-loop system work?

A CGM sensor measures glucose every 5 minutes and sends data to an algorithm on your pump, automatically adjusting insulin delivery to prevent high and low glucose levels.