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Dr. Krishna Chaitanya is a qualified Vascular Surgeon with MBBS, MS (Gen Surgery), M Ch (Vascular Surgery) qualifications. He is a Consultant Vascular & Endovascular Surgeon at Columbia Asia Referral Hospital, Bengaluru. ...Read More
What is diabetic foot? If you have diabetes and your blood sugar levels are too high, it can damage your nerves or blood vessels. Nerve damage from diabetes can cause you to lose feeling in your feet. You may not feel a cut, a blister or a sore. Blood vessels damage means that the feet does not get enough blood and oxygen. Injuries to the foot can cause ulcers and infections and in severe cases it may even lead to amputation. It is harder for your foot to heal, if you do get a sore or infection. Why does this complication occur in the first place? In individuals suffering from diabetes, neuropathy which is peripheral nerve dysfunction (Owing to which the individuals suffering from diabetes are unable to feel pain) can be combined with peripheral artery disease (PAD), leading to poor blood circulation in the extremities (diabetic angiopathy). This translates into injuries being undetected for prolonged periods, resulting in minor injuries and alterations becoming gateways to potentially disabling infections, which may necessitate lower limb amputation. World over, The most common cause of non-traumatic amputations is Diabetic foot Infection Why is foot care important? Foot care in diabetics is of paramount importance as it goes un-noticed leading to infections, and untreated infections can lead to gangrene, which in turn may require amputation. Diabetes induced neuropathy causes the skin to dry up, and dry feet crack making it easy for the germs to enter the body. Nerve damage can also lead to changes in the shape of the patientsâ€™ feet (Charcot foot), which makes previously comfortable shoes hard to walk in. This causes friction leading to calluses and bunions exposing skin to germs. Caring for your feet Foot care should be the prime consideration in diabetics, and is not difficult. Diabetics should regularly check their feet for any signs of damage. Look out for the below warning signals of foot damage: Â· Bruises Â· Cuts Â· Sores Â· Swelling Â· Grazes Â· Colour changes Â· Ulceration Â· Hard skin Having mentioned the warning signs letâ€™s now look at the daily foot care routine which should ideally be followed by diabetics. Â· Check your feet every day Â· Wash your feet every day Â· Keep the skin soft and smooth Â· Smooth corns and calluses gently Â· If possible, trim your toenails regularly. If you cannot, ask a foot doctor (podiatrist) to trim them for you. Â· Wear shoes and socks at all times Â· Protect your feet from hot and cold Â· Keep the blood flowing to your feet Following a good foot care regimen will go a long way in keeping your feet healthy. This should include Â· Periodic medical check-ups including foot check-ups and monitoring your ABCs (A1c, blood pressure, and cholesterol) Â· Monitoring sugar levels daily Â· Exercising every day, and Â· Eating a balanced diet It is important to recognize early warning signals of foot problems, like: Â· Burning, tingling, or painful feet Â· Loss of sensation in the feet Â· Changes in shape or colour of your feet Â· Thickening or discoloration of toe nails Â· Onset of blisters, ulcers, sores, or red spots. Always avoid taking the following risks: Â· Diabetics should not use over the counter medications for treating warts or corns on the feet. Â· Never walk around the garden or outside barefoot, wear perfect fitting shoes for indoors and outdoors. Â· Avoid smoking as it reduces the circulation of blood and healing process of wounds drastically decreases. Â· Never cross the legs while sitting for long period of time. If any of the above are noticed, a doctor should be consulted immediately, as it may lead to serious health complications. Treatment of diabetic foot complications can be prolonged and challenging, hence prevention is better than cure. Stay Healthy!!
Vascular Surgery is a specialty of surgery in which diseases of the vascular system, or arteries and veins, are managed by medical therapy, minimally invasive catheter procedures, and surgical reconstruction. The vascular surgeon is trained in diagnosis and management of diseases affecting all parts of the vascular system except that of the heart and brain. There is an evolving emphasis on minimally invasive vascular surgery, known as endovascular surgery, which allows for treatment of many vascular diseases from within the arteries and veins using catheters.See All Diseases
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Venous insufficiency refers to a defect, or ‘insufficiency’, of the venous system in the lower extremities causing swelling, pain, varicose veins (which can cause pain), and changes to the skin including red or brown pigmentation (known as stasis dermatitis), dry scaling, ulcers, and infection. The abnormality is usually a failure of the veins to properly return blood upward to the heart.
This causes a ‘back-up’ of blood in the leg veins that raises the venous pressure, which in turn forces the fluid within blood to leak out into the tissues causing swelling. The elevated pressure also forces blood back into the smaller veins in the subcutaneous tissue under the skin causing varicose veins, which can cause pain and if located under ulcers or wounds, can prevent healing. Diagnosis of venous insufficiency and their associated complications requires a thorough history and physical exam by a vascular surgeon.
A specific type of ultrasound of the venous system in the legs is required, called as venous duplex study. Treatment of primary/deep and lymphatic insufficiency requires compression therapy with prescription-strength compression stockings. If ulcerations or wounds developed, then alternative methods of compression may be required, which incorporate wound care techniques. For severe cases or for those who are not candidates for traditional compression therapy, a compression pump may be required.
Treatment of superficial venous insufficiency (including varicose veins) often requires a catheter procedure, which we perform in our hospital, to close the abnormal veins. This procedure called Laser ablation or Radiofrequency ablation of Varicose veins may often be combined with microphlebectomy (removal of veins through tiny incisions) and/or sclerotherapy (injection of veins with a sclerosing agent). Patient may be treated on a day-care basis
Peripheral arterial disease (PAD, or PVD for peripheral vascular disease) refers to the build-up of atherosclerotic (cholesterol) plaque within the peripheral arteries such that symptoms occur from lack of blood flow. The arteries in the legs are most commonly affected. The symptoms can include claudication (pain with walking), pain at rest in the feet or toes, and tissue loss, which includes ulcers, wounds, gangrene, and infection.
Complications from PAD include acute thrombosis (occlusion from blood clot formation) and embolism, which is when thrombus (blood clot) or plaque from higher up in an artery or the heart breaks loose and lodges itself into an artery further downstream. These complications can cause sudden severe pain, limb-threatening ischemia, and gangrene and/or infection.
This can result in loss of toes or limbs. Diagnosis and management of PAD requires a thorough history and physical exam by a vascular surgeon. Occasionally, a computed tomography (CT) scan, magnetic resonance imaging (MRI) study, or arteriogram (injection of contrast dye into the arteries) is required. Treatment of symptomatic PAD may involve medical therapy along with an exercise regimen, minimally invasive (endovascular) treatment with balloon angioplasty and/or stenting, or open surgical reconstruction with a graft.
Aneurysms represent a dilation (ballooning) of the artery caused by weakening of the walls of the artery. They can occur almost anywhere in the body but most commonly occur in the abdominal aorta (known as AAA for abdominal aortic aneurysm), thoracic aorta (TAA), peripheral arteries (iliac, femoral, popliteal, subclavian), carotid arteries, and visceral arteries (splenic, renal, celiac, and hepatic).
Complications from aneurysms include rupture, which can cause life-threatening bleeding, and embolization (movement to a location further down the artery) of thrombus from within the aneurysm, which can cause limb-threatening ischemia, stroke, TIA, or endorgan injury. Management of aneurysms often requires complete evaluation of arterial system by Vascular Surgeon.
Occasionally, a computed tomography (CT) scan is required. Treatment of large or symptomatic aneurysms involves exclusion of the aneurysm by either minimally invasive (endovascular) stent graft placement, also known as EVAR for endovascular aneurysm repair, or open surgical reconstruction with a graft.
Carotid artery disease includes stenosis (narrowing), occlusion, or dissection of the carotid arteries, which can cause stroke or mini-stroke (known as TIA for transient ischemic attack). Stroke or TIA occurs from stenosis when a piece of the atherosclerotic (cholesterol) plaque that causes the stenosis breaks off (now called an embolus) and travels up to the brain where is occludes an artery that supplies a particular part of the brain.
The resulting symptoms depend on the size of the embolus that travelled up, or ‘embolized’, and the location within the brain that was affected. The embolus can also travel to the artery that supplies the eye, rather than the brain, and cause visual defects. Treatment of symptomatic or severe asymptomatic carotid stenosis requires a procedure in the form of either carotid endarterectomy (This procedure involves surgically removing the plaque from within the artery to prevent future stroke or TIA) or Carotid angioplasty & stenting.
Once kidney function goes below 10 to 15 percent of normal, dialysis treatments or a kidney transplant are necessary to sustain life. Dialysis cleans blood by removing it from the body and passing it through a dialyzer, or artificial kidney. In order to undergo dialysis, a dialysis access is required.
An AV fistula is a type of dialysis access where, a connection is created by a vascular surgeon, between an artery and a vein. Arteries carry blood from the heart to the body, while veins carry blood from the body back to the heart. Vascular surgeons specialize in blood vessel surgery. The surgeon usually places an AV fistula in the forearm or upper arm. An AV fistula causes extra pressure and extra blood to flow into the vein, making it grow large and strong. The larger vein provides easy, reliable access to blood vessels. Without this kind of access, regular hemodialysis sessions would not be possible. Untreated veins cannot withstand repeated needle insertions.
Foot problems in people with diabetes are usually treated by keeping blood sugar levels in a target blood sugar range and by using medicine, surgery, and other types of treatment.
When foot problems develop, those problems need prompt treatment so that serious complications don't develop. Even problems that seem minor - like calluses, blisters, cracked or peeling skin, and athlete's foot - need to be evaluated by a specialist. These problems frequently occur as a result of reduced sensitivity in the feet and may precede more serious infections or foot ulcers if the cause (poorly fitted shoes, excessive weight-bearing, or dry skin) isn't identified and corrected.
After a foot ulcer has formed, it will not heal as long as weight-bearing on the area continues. Unless your foot ulcer is infected, your doctor may put a cast on your leg to help the ulcer heal. Keeping your weight off your injured foot is very important. Even when you are at home, be careful to stay off that foot. Cushioned shoes, orthotic inserts, support with a cane or crutches, and - in extreme cases - a wheelchair and bed rest may be used to reduce weight and pressure on the feet. Foot infections need to be treated with antibiotics.