# Treatment methods for diabetes with severe complications
Treatment of severe diabetic complications focuses on preventing further damage, relieving symptoms, and controlling the underlying metabolic dysfunction. The approach varies greatly depending on which complication is prominent (kidneys, heart and blood vessels, nerves, eyes, or feet). Below are the main treatment directions per complication area.
---
Blood sugar regulation
ProveniIncluded in official guidelines, or approved by EMA or FDA
Daily blood sugar monitoring remains the cornerstone of all treatment. In type 1 diabetes this is done through insulin (injections or pump); in type 2 diabetes multiple medications are often used: metformine, sulfonylureas, DPP-4 inhibitors, GLP-1 receptor agonists, or SGLT2 inhibitors. These groups work through different mechanisms to keep blood glucose lower.
The choice depends on which complications are present. For example: SGLT2 inhibitors prove beneficial in kidney damage and heart failure, while GLP-1 agonists also provide cardiovascular protection. Regular blood sugar measurements (sometimes via continuous glucose monitors) help adjust dosing. This is always coordinated with a doctor or diabetes nurse.
---
Treatment of diabetic kidney damage (diabetic nephropathy)
ProveniIncluded in official guidelines, or approved by EMA or FDA
When kidneys are damaged by prolonged high blood sugar, blood cleansing treatment (dialysis) or kidney transplantation becomes necessary if kidney function severely declines. Before that stage, doctors try to slow the decline in kidney function with:
- **ACE inhibitors or angiotensin receptor blockers**: work by lowering blood vessel pressure in the kidneys and preventing protein excretion. Side effects can include cough irritation (with ACE inhibitors) and dizziness.
- **SGLT2 inhibitors**: help not only lower blood sugar but also slow kidney damage. Side effects sometimes include urinary tract infections and genital fungal infections.
- **Blood pressure reducers**: aim for a target pressure to prevent kidney damage.
Dialysis means artificially cleaning blood, usually three times a week; this partially replaces kidney function. A hemodialysis shunt (fistula or graft) is surgically created to provide access to blood vessels. Peritoneal dialysis is done at home via peritoneal exchange and requires self-training.
---
Treatment of diabetic neuropathy (nerve damage)
ProveniIncluded in official guidelines, or approved by EMA or FDA
Diabetic neuropathy occurs because high blood sugar worsens blood supply to nerves. This can cause burning, pain, tingling, or conversely numbness in feet and legs.
The main approach is:
- **Strict blood sugar control**: prevents further nerve damage.
- **Pain management**: medications such as pregabalin or gabapentin can reduce nerve pain. Tramadol or other pain relievers are sometimes used, although strong opioids are rarely standard.
- **Local treatment**: including capsaicin cream (from chili peppers) can be applied to feet; anticonvulsants can also help topically.
- **Physiotherapy and night splints**: help keep foot and muscle cramping and inflammation in check.
Numbness in feet poses a major risk of injury; adapted foot care and special shoes are essential.
---
Treatment of diabetic eye complications (diabetic retinopathy)
ProveniIncluded in official guidelines, or approved by EMA or FDA
High blood sugar damages blood vessels in the retina, which can lead to worsened vision to blindness.
- **Laser treatment**: seals leaking blood vessels in the retina and reduces fluid loss in the eye. This is done in multiple sessions.
- **Eye injections**: medications such as anti-VEGF (inhibits growth of new blood tissue) or corticosteroids are injected directly into the eyeball to counteract swelling and fluid accumulation.
- **Vitrectomy**: in severe cases internal eye fluid is removed and replaced with clear gas or silicone oil, so the retina can heal.
- **Screening**: regular eye photographs (retinal photography) can detect damage early, before symptoms become noticeable.
ResearchediPositive results in clinical studies, not yet standard treatment
Regular measurement of macular pigments (pigment in the central part of the retina) is being investigated as an early warning for retinopathy.
---
Treatment of diabetic foot complications
ProveniIncluded in official guidelines, or approved by EMA or FDA
A combination of numbness (neuropathy), poor wound healing and reduced blood flow makes diabetic feet vulnerable to wounds and infections.
- **Wound care**: regular cleaning, disinfection and dressing changes. Feet are inspected daily for cuts or inflammation.
- **Orthopedic shoes**: specially made shoes with pressure-distributing soles prevent blisters and pressure on sensitive areas.
- **Surgical debridement**: deeply infected or necrotic (dead) tissue must be removed, sometimes under anesthesia.
- **Revascularization**: if wound blood flow is critically low, interventions (balloon catheters, stents or bypass surgery) can restore blood vessels. Performed before amputation.
- **Amputation**: if a wound does not heal and infection or gas gangrene develops, loss of toes, midfoot or tibia may be necessary.
ResearchediPositive results in clinical studies, not yet standard treatment
Vitamin C is currently being investigated as a supplement to standard wound care, particularly for foot ulcers. Studies are ongoing; effectiveness has not yet been definitively established.
---
Treatment of diabetic heart disease and vascular complications
ProveniIncluded in official guidelines, or approved by EMA or FDA
Diabetes increases the risk of heart attack and stroke through premature atherosclerosis (plaques in arteries).
- **Blood pressure medications**: usually ACE inhibitors, beta-blockers or calcium antagonists.
- **Cholesterol-lowering drugs**: statins are standard; ezetimibe or PCSK9 inhibitors sometimes for greater reduction.
- **Anticoagulants**: aspirin or other blood thinners prevent clots after heart attack.
- **GLP-1 receptor agonists**: show cardiovascular benefit in addition to blood sugar control.
- **Cardiac rehabilitation**: physiotherapy and guidance after heart attack or heart surgery.
- **Stent placement or bypass**: if coronary arteries are severely narrowed.
---
Treatment of infections
ProveniIncluded in official guidelines, or approved by EMA or FDA
Diabetics get infections more easily and more severely. Wound and urinary tract infections are frequent.
- **Antibiotics**: topical (ointment) or systemic (tablets, injections), depending on severity and type of bacteria. A culture is often taken from the wound.
- **Gas gangrene**: severe bacterial infection with rapid tissue death. Requires emergency surgery and IV antibiotics.
---
Treatment of diabetic gastroparesis (stomach paralysis problems)
ProveniIncluded in official guidelines, or approved by EMA or FDA
High blood sugar can damage the stomach nerves, causing food to be processed more slowly.
- **Dietary adjustments**: smaller, more frequent meals; preference for liquid foods.
- **Metoclopramide**: helps stomach muscles contract; may become less effective over time, however.
- **Domperidone**: alternative, especially outside the US.
- **Hospitalization and tube feeding**: sometimes necessary if oral intake is insufficient.
---
Treatment of body composition problems and muscle loss
ProveniIncluded in official guidelines, or approved by EMA or FDA
Older people with severe diabetes can lose muscle strength and bone density (sarcopenia).
- **Resistance and strength training**: under the guidance of a physiotherapist, increases muscle mass and stability.
- **Nutritional support**: protein-rich food and sometimes nutritional supplements.
- **Weight management**: preventing underweight while overweight also increases risk.
---
Mental health and support
ProveniIncluded in official guidelines, or approved by EMA or FDA
Diabetes with complications often leads to depression and anxiety. This worsens self-care and blood sugar control.
- **Psychological counseling**: individual therapy, group therapy or online support.
- **Antidepressants or anti-anxiety medications**: when symptoms are severe.
- **Patient education**: knowledge about medications, nutrition and self-monitoring.
---
Supportive measures
ProveniIncluded in official guidelines, or approved by EMA or FDA
- **Nutrition**: low-glycemic diets with plenty of fiber, limitation of sugars and healthy fats.
- **Physical activity**: at least 150 minutes of moderate activity per week, within the limitations of complications.
- **Smoking cessation**: smoking worsens all complications.
- **Regular check-ups**: blood sugar, blood pressure, kidney function, eye quality, feet.
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._