Jeffrey M. Carlton Heart & Vascular Institute
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Contact usEvery day through our Vascular Program at Hoag’s Jeffrey M. Carlton Heart and Vascular Institute, we’re setting the standard for vascular disease diagnosis in Orange County.
The Hoag Echo and Vascular Ultrasound Lab established itself as the first IAC-accredited vascular lab in Orange County. All Hoag Echo and Vascular Ultrasound Labs are still proudly IAC accredited providing the highest quality vascular imaging available.
The latest and most advanced diagnostic tools. A unified team of physicians, registered vascular technologists and vascular surgeons, working as one for your healing. A program-wide focus on delivering the utmost in patient-focused care. That’s vascular diagnosis and care when you choose Hoag.
Read on for what you need to know about how vascular disease is diagnosed at Hoag. Or contact Hoag’s Vascular Program through our online form or by calling 949-764-5871.
Vascular disease is an umbrella term for any condition that can impact the blood vessels, which — along with the heart — form the circulatory system.
With the heart serving as the pump that keeps things flowing, the network of blood vessels that make up a healthy circulatory system supplies oxygenated blood to the body, then routes blood back to the heart so it can be re-oxygenated by the lungs, starting the cycle all over again.
The different types of blood vessels are:
Arteries, which are large, thick-walled blood vessels that carry oxygenated blood away from the heart
Veins, which are thinner vessels that carry deoxygenated blood back to the heart
Capillaries, which are the networks of very thin blood vessels that distribute oxygen and nutrients directly to the tissues and carry away waste
Certain vascular diseases can damage the blood vessels, dangerously increase the pressure that blood flow exerts on the circulatory system or disrupt the function of the heart, brain, kidneys and other vital organs. For these reasons, some types of vascular disease can cause serious and even life-threatening symptoms and complications.There are many different types of vascular disease. Visit the following links to learn more from Hoag:
Peripheral arterial disease (PAD) including Critical Limb Ischemia
Peripheral venous disease (PVD)
Visit this link to learn more about management and treatment options for vascular disease that are available at Hoag.
How to diagnose vascular disease depends on several factors, including which type of vascular disease you have and the symptoms you are experiencing.Steps usually taken to reach a vascular disease diagnosis include:
If you visit a physician with symptoms that indicate you might have some form of vascular disease, you’ll likely be given a thorough physical examination. Your doctor will likely check your blood pressure, listen to your heart and arteries and examine your body for signs that might indicate vascular disease, including leg pain or swelling in the lower extremities (the legs, feet and ankles).Your doctor will also likely ask your personal and family history of vascular issues and heart disease, factors like diabetes and smoking.You may be asked to submit to other tests to help diagnose the cause of the symptoms you’re experiencing. These tests may include:
Your doctor may take a blood sample and/or a urine sample to determine cholesterol levels, blood sugar, triglycerides and other issues that might indicate you have vascular disease or a condition that could be contributing to it, like atherosclerosis or diabetes.
Modern diagnostic imaging technology is important in the accurate diagnosis of cardiovascular diseases of all types, creating detailed pictures and video of internal structures of the body. These images can then be used for diagnosis, planning for treatments or surgical procedures and other next steps.Imaging technology used to diagnose different types of vascular disease includes:
An ultrasound exam is a non-invasive medical procedure in which sound waves are used to create detailed pictures of tissues, organs and structures inside the body. Vascular ultrasound is a group of specialized procedures used to look specifically at the vascular system, consisting of the arteries, veins and capillaries.Types of vascular ultrasound exams used at Hoag include:
Duplex Ultrasound is a type of imaging that combines two ultrasound technologies — B-mode ultrasound and Doppler ultrasound — to create highly-detailed images of blood vessels and blood flow inside the body
Arterial Duplex, which is a type of ultrasound used specifically to visualize and evaluate the arteries supplying the arms and legs (sometimes called “the extremities”)
Aortic ultrasound, which looks specifically at the aorta — the body’s largest and most important blood vessel— for signs of enlargement, aortic aneurysms (bulging) or aortic dissection (a life-threatening tear in the aortic wall)
Abdominal Vascular Duplex, a type of ultrasound used to examine the blood vessels that supply the organs inside the abdomen, including the renal arteries
Carotid Duplex (CUS), also called a carotid ultrasound, which is used to evaluate the carotid arteries on either side of the neck that supply blood to the brain
Venous Duplex, which is used to examine the veins that return deoxygenated blood from the arms and legs
Arterial Physiologic Exam, a specialized form of ultrasound in which blood pressure cuffs are used during the exam to locate blockages in an artery
Transcranial Doppler (TCD), a type of ultrasound used to evaluate the blood vessels inside the skull that supply the brain
An angiogram is a minimally invasive form of imaging in which a thin, flexible tube is inserted through a blood vessel, then guided through the body to a spot in the circulatory system that will be examined.Once in place, a special fluid called a contrast dye is injected through the catheter. The injection of this contrast dye makes nearby blood vessels visible on X-ray images. X-rays are then taken, which can reveal blockages in the blood vessel.
Magnetic resonance angiography is a special type of magnetic resonance imaging (MRI) to see blood vessels and map blood flow.
Computed tomography angiography (CTA) is an advanced imaging test which involves CT scanning with a contrast dye to produce images of certain arteries.
Ankle Brachial Index (ABI) Screening, a quick test to compare the blood pressure in your ankle with the blood pressure in your arm for early detection of a common circulatory problem, peripheral arterial disease (PAD)
Ambulatory blood pressure monitoring, which is a type of blood pressure monitor that you wear for hours or days
Visit this link to meet Hoag’s vascular team.
From Seal Beach to Costa Mesa, Laguna Hills to Mission Viejo, Orange County’s recognized leader for advanced vascular disease diagnosis is Hoag.Our commitment to providing Orange County with the latest diagnostics for vascular disease is strong. Hoag has IAC-accredited Echo and Vascular Ultrasound Labs throughout Orange County, with convenient locations in Newport Beach, Huntington Beach and Irvine.The Hoag Echo and Vascular Ultrasound Labs are IAC-Accredited in Vascular Testing. As a patient, you can have confidence that our facility is committed to quality patient care:
Specialized and dedicated, highly trained registered vascular technologists (RVT)
Physicians are board-certified and fellowship trained in vascular specialties and credentialed in vascular interpretation
Ability to evaluate rare conditions and perform specialized testing
From peripheral vascular disease to deep vein thrombosis, abdominal aortic aneurysm to carotid artery disease, nobody knows these complex conditions quite like Hoag. So don’t wait. If you need diagnosis and treatment for vascular disease in Orange County, Hoag is here, and we’re ready to help. Contact us today through our online form or by calling 949-764-5871.
Hoag’s Jeffrey M. Carlton Heart and Vascular Institute is your source for advanced vascular treatments in Orange County.
From issues like spider veins to dangerous conditions such as an abdominal aortic aneurysm, Hoag’s team of board-certified experts stands ready to help, with a system-wide dedication to minimally-invasive procedures, the latest technology and providing high-quality, patient-focused care.
Have you been diagnosed with vascular disease in Newport Beach, Irvine, Anaheim, Huntington Beach, Dana Point or other communities across Orange County? Then you owe it to yourself to seek out the latest treatment options available through our specialized Vascular Program.
Read on for everything you need to know about how vascular diseases are treated at Hoag. Or contact Hoag’s Vascular Program through our online form or by calling 949-764-5871.
Vascular disease, also called vasculopathy, is an umbrella term that includes any condition that causes problems with the circulatory system.
The circulatory system is the branching network of blood vessels that transport oxygenated blood throughout the body so it can be utilized by the organs and tissues. Once the blood has been used by the tissues, the circulatory system then returns it to the heart so it can be infused with oxygen again by the lungs.
The types of blood vessels are:
Arteries: The large, tough blood vessels that transport oxygenated blood away from the heart
Veins: The smaller blood vessels that return blood to the heart so it can be replenished with oxygen
Capillaries: The fine blood vessels that directly distribute oxygen-rich blood to the organs and tissues and carry away cellular waste products
There are several different types of vascular disease, including peripheral vascular disease, varicose veins, renal artery disease and many more.
Visit the following links to learn more about specific types of vascular disease:
Peripheral arterial disease (PAD) including Critical Limb Ischemia
Peripheral venous disease (PVD)
The treatment options for vascular disease vary from patient to patient, and depend on several factors, including which type of vascular disorder you have, the symptoms you’re experiencing, your overall health and more.
In general, however, treatment options for vascular disease include:
One of the first measures commonly suggested when treating vascular disease are lifestyle changes, both to improve overall health and help control various issues that might be contributing to or causing the condition.
For example, Atherosclerosis, a condition involving the buildup of a waxy substance called plaque in the blood vessels, is a contributing factor in certain types of vascular disease, including carotid artery disease and renal artery disease.
Lifestyle changes you might be asked to make following a diagnosis of vascular disease can include:
Eating a diet that’s low in cholesterol, salt, sugar, carbohydrates and saturated fats
Getting regular cardiovascular exercise
Getting regular health screenings by your physician or a specialist in the form of vascular disease you have
Maintaining a healthy weight
Quitting smoking
Managing your stress
These lifestyle changes can also decrease a person’s risk for a host of other dangerous conditions, including coronary artery disease, high blood pressure, diabetes, heart disease, obesity, kidney failure and more.
For many patients with vascular disease, treatment will include taking prescribed medications to help lower blood pressure, reduce the amount of cholesterol in the blood, help the body shed excess fluid and other issues.
Medications commonly prescribed for the treatment of vascular disease include:
Diuretics, also called “water pills,” which help your body remove excess fluid and salt through urine. That can lower blood pressure and ease the strain on your blood vessels.
ACE inhibitors and ARBs are medications that regulate a hormone called angiotensin II, which naturally narrows blood vessels. ACE inhibitors block the production of angiotensin II, while ARBs prevent the hormone from working on the blood vessels. That relaxes blood vessels and lowers blood pressure.
Calcium channel blockers, which block calcium from entering the smooth muscle cells in your blood vessel walls, causing them to relax and widen. That can improve blood flow and lowers blood pressure.
Anticoagulants, commonly called “blood thinners,” is a medication that interfere with the body’s blood clotting process, preventing blood clots from forming or growing. That can reduce the risk of serious and life-threatening conditions like stroke, heart attack or a pulmonary embolism, in which a clot travels to the lungs.
Statins: Because high cholesterol and atherosclerosis (plaque buildup in the blood vessels) are a contributing factor for many types of vascular disease, cholesterol-lowering medications called statins may be prescribed.
Alpha-blockers, which block the effect of a hormone called norepinephrine on the smooth muscle cells, which can relax the blood vessels. This relaxation improves blood flow, helping with issues like high blood pressure or an enlarged prostate.
Beta-blockers, which slow down your heart rate and reduce the force of heart contractions. That can lower blood pressure and also help control irregular heart rhythms (arrhythmia).
Vasodilators, which directly relax and widen blood vessels, improving blood flow and lowering blood pressure.
Thrombolytic agents: In some cases involving the blockage of a blood vessel by a clot, medications called thrombolytic drugs (commonly called “clot-busting drugs”) may be used to dissolve clots and restore blood flow.
Diabetes medications: Diabetes is a risk factor for several types of vascular disease. If you have diabetes and develop a vascular condition, you may be prescribed medications to better control your blood sugar.
If lifestyle changes and medications don’t do enough to control your symptoms or the progression of the disease, certain minimally-invasive treatment options like endovascular surgery or traditional open surgery may be considered. Click on the links below for surgical treatment options:
Peripheral Vascular Disease, including Chronic Venous Insufficiency (CVI) and Varicose Veins
Peripheral Arterial Disease (PAD) and Critical Limb Ischemia (CLI)
An aortic aneurysm is an abnormal enlargement or “bulge” in the aorta, the large artery which carries blood away from the heart so it can be distributed to the organs and tissues.
Endovascular aneurysm repair (EVAR): Endovascular aneurysm repair, or EVAR, is a minimally-invasive procedure that uses cardiac catheterization to treat an abdominal aortic aneurysm (AAA), which is a potentially dangerous bulge in the aorta, the body’s largest and most important blood vessel. During the procedure, the surgeon makes a small incision in a blood vessel in the arm, leg or groin, then guides a catheter through the body to the aortic aneurysm. A medical device called a stent graft is then positioned in the bulging section of the aorta. Once the graft is in place, it expands, attaching itself to the walls of the aorta. This creates a seal, strengthening the damaged portion of the aorta while preventing blood flow from putting further pressure on the aortic aneurysm.
Fenestrated endovascular aortic aneurysm repair (FEVAR) and Physician modified aortic aneurysm repair (PMEG): Physician-modified endografts (PMEG) are important techniques for endovascular repair of complex aortic aneurysms using off-the-shelf devices.
Traditional Abdominal Aortic Aneurysm (AAA) Repair: Unlike aneurysm repair through endovascular surgery, during a traditional aortic aneurysm repair, surgeons access and repair the aneurysm through longer incisions made in the chest or abdomen.
Transcarotid Artery Revascularization (TCAR) is an advanced, minimally-invasive technique used to treat severe narrowing or blockage of the carotid arteries — the dual arteries in the neck that supply blood to the brain. During the procedure, a small incision is made in the neck, then the normal direction of blood flow through the narrowed or blocked carotid artery is reversed, with the blood usually rerouted to a vein in the groin. Reversed blood flow helps push any pieces of plaque that might break loose during the procedure away from the brain, preventing them from causing a stroke. Once the blood flow is safely reversed and diverted, a vascular surgeon then clears out the plaque with a device at the tip of a catheter. The surgeon may also insert an expanding tube called a stent into the carotid artery, preventing it from becoming blocked or narrowed in that place again.
Carotid endarterectomy is a procedure to remove plaque build-up (or fatty deposits) in the main blood vessels (carotid arteries) that supply blood to the brain. Under general anesthesia, your surgeon makes an incision along neck, exposing the blocked carotid artery. The surgeon then removes the plaque that is narrowing/clogging your artery. Then, your surgeon repairs the artery with stitches or a patch made with a vein or artificial material (a patch graft). This surgery improves blood flow and reduces your risk for cerebrovascular disease and stroke.
Renal angioplasty and stenting: renal artery angioplasty and stenting is a minimally-invasive procedure used to treat restricted blood flow to the kidneys by widening the passage through your renal artery. During the procedure, a long tube called a catheter is inserted through a blood vessel in the arm, leg or groin, then guided through the circulatory system to the renal artery. Once the catheter is in place, a small balloon at the tip may be inflated, which forces the blocked blood vessel open to make room for the stent. A mesh tube called a stent is then installed where the narrowing or blockage occurs, to maintain blood flow to the kidney.
Endovenous Thermal Ablation: Used in the treatment of varicose veins, endovenous thermal ablation (sometimes called radiofrequency therapy) is an endovascular surgery technique in which a laser or radiofrequency device at the tip of a catheter produces heat energy that closes off damaged veins.
Sclerotherapy: Used to treat varicose veins and spider veins, sclerotherapy involves injecting a special fluid directly into the varicose or spider vein. This fluid irritates the lining of the affected blood vessel, eventually causing the formation of scar tissue that seals it off.
VenaSeal: a procedure that uses a medical glue to seal off (or close) the diseased veins. This glue holds the walls of the vein together to stop and redirect the blood flow to healthy veins. Over time, your body absorbs the inactive veins.
Critical limb ischemia (CLI) is a severe form of peripheral arterial disease (PAD) that required immediate treatment to re-establish blood flow. The main priority with CLI is to preserve the limb and prevent an amputation.
Angioplasty and stenting: also known as balloon angioplasty, angioplasty is a minimally-invasive procedure used to treat restricted blood flow by widening narrowed or blocked blood vessels. During the procedure, a long tube called a catheter is inserted through a blood vessel in the arm, leg or groin, then guided through the circulatory system to the location of the blockage. Once the catheter is in place, a small balloon at the tip is inflated, which forces the blocked blood vessel open. In some cases, a mesh tube called a stent is then installed where the narrowing or blockage occurs, holding the blood vessel open.
Atherectomy: a less-invasive procedure that uses a catheter-positioned device to remove plaque that is narrowing or blocking an artery.
Iliofemoral bypass surgery (IFBPG): Iliofemoral bypass surgery is a procedure that creates a detour or bypass around a blocked or narrowed iliac artery or femoral artery. The iliac arteries are located in the lower abdomen, while the femoral arteries run from the groin to the back of each knee. During the procedure, a surgeon connects the iliac artery to the femoral artery, routing blood flow around a blockage.
Thrombectomy and Embolectomy: Embolectomy and Thrombectomy are procedures used to treat venous thromboembolism (VTE), a serious condition that occurs when a blood clot forms in the circulatory system. Deep Vein Thrombosis (DVT) and pulmonary embolism are types of VTE. Thrombectomy usually refers to a procedure to remove a clot that’s still located where it originally formed (a thrombus). Embolectomy, on the other hand, is a procedure for removing a clot that has dangerously traveled from where it originally formed and become stuck somewhere else (an embolus). Minimally-invasive thrombectomy and embolectomy procedures use a thin, flexible catheter that’s inserted through a small incision into an artery or vein, then guided through the circulatory system to the location of the clot. The tip of the catheter has specialized tools that let a surgeon grasp or break up the clot, so it can be safely removed from the body.
Through our Vascular Program at Hoag’s Jeffrey M. Carlton Heart and Vascular Institute, we’re setting the standard for vascular care in Orange County.
From venous disorders to peripheral arterial diseases, aortic aneurysms to deep-vein thrombosis, our highly-skilled team of specialists and vascular surgeons is unified in one mission: treating every patient with the dignity they deserve, while providing Orange County’s most advanced vascular care. That includes a wide range of endovascular (catheter-delivered procedures) and vascular surgery techniques.
Need vascular disease treatment or vascular surgery in Orange County? Don’t trust your health to just anyone. Come see the experts at Hoag. Contact us today through our online form or by calling 949-764-5871.

Antonio J. Covarrubias, M.D. is a Vascular Surgeon who treats the full spectrum of vascular diseases such as peripheral arterial disease, chronic venous insufficiency / varicose veins, limb wounds, aortic aneurysms, carotid disease and provides dialysis access. He is double board-certified in both general and vascular surgery. Born in Mission Viejo, California, Dr. Covarrubias moved to Argentina with his family, when he was eight years old, where he grew up and studied medicine. After graduating medical school, he returned to the United States to complete his training in General Surgery at Loma Linda University and Vascular Surgery Fellowship at UC San Diego Health. He utilizes the latest technologies to treat vascular conditions using minimally invasive procedures, when appropriate. Prior to joining the Vascular Program at Hoag, Dr. Covarrubias led a private practice in Orange County. He is passionate about helping patients feel better while providing a superior patient experience. His approach to patient care is that he treats his patients as he would treat his own family. Dr. Covarrubias is fluent in Spanish and resides in Orange County. In his free time, he loves to spend time with his wife, daughter and son. He is very passionate about sports mainly soccer, but also golf, tennis and snowboarding.

Vascular Surgery

<p>Dr. Lindsay completed his undergraduate and medical school education in Manitoba, Canada before moving to California to intern at the Los Angeles County; University of Southern California where he remained to complete a General Surgery Residency. Becoming enthralled in vascular surgery, he pursued further training in Long Beach, CA, at one of only fourteen training programs available at that time. He confined his practice to vascular surgery after entering private practice and practices in south Orange County caring for patients with many different vascular problems.</p> <p>Recently, he became involved in medical staff affairs at Hoag Memorial Hospital Presbyterian in Newport Beach, California and was elected its Chief of Staff (2011-2013). His remaining time is devoted to his family and reading.</p>

<p>Dr. Mady is a Vascular Medicine specialist at the Jeffrey M. Carlton Heart and Vascular Institute at Hoag Memorial Hospital Presbyterian.</p> <p>Dr. Mady’s training and expertise are in the non-invasive vascular laboratory and the medical management of vascular disease.</p> <p>He completed his Residency in Internal Medicine and Fellowship in Vascular Medicine at the Cleveland Clinic in Ohio. Dr. Mady is Board Certified by the American Board of Internal Medicine and the American Board of Vascular Medicine. He is also a Registered Physician in Vascular Interpretation by the American Registry for Diagnostic Medical Sonography. He earned his Doctor of Osteopathy degree from the New York College of Osteopathic Medicine.</p> <p> Dr. Mady’s areas of interest are the treatment of: <br> 1. Venous disorders such as deep vein thrombosis, pulmonary embolism, hypercoagulable states, varicose veins and chronic venous insufficiency and anticoagulation management. <br> 2. Arterial disorders such as lower extremities, carotid, renal and mesenteric disease, fibromuscular dysplasia, entrapment syndromes, aneurysms, vascular risk assessment and risk modification, vascular disease in the young and athletes, Raynaud’s and rare vascular disorders <br> 3. Lymphedema and chronic leg swelling </p> <p>His professional associations include: Fellow of the Society for Vascular Medicine, American College of Phlebology, Society for Vascular Ultrasound, International Society for Thrombosis and Hemostasis, and International Union of Angiology.</p>

Allen Murga, M.D., is a board-certified general and vascular surgeon treating a wide range of vascular diseases such as peripheral arterial disease, chronic venous insufficiency, varicose veins, limb wounds, aortic aneurysms, dialysis access and carotid disease. Dr. Murga has a special interest in complex aortic aneurysm pathology and treatment options such as complex endovascular aneurysm repairs. Born and raised in Glendale, California, Dr. Murga received his medical degree from Loma Linda University School of Medicine. Upon graduation, he stayed at Loma Linda University to complete his General Surgery Residency and Vascular Surgery Fellowship. Prior to joining Hoag, Dr. Murga served as the director of the aortic program at Loma Linda University Health. Dr. Murga knows that facing vascular issues can be a challenging experience, and he takes time to listen to and educate his patients. Dr. Murga is fluent in Spanish and loves to spend time with his wife and two sons. Dr. Murga’s personal interests include photography and following sports, mainly baseball and football.

<p>Dr. Nabi grew up on the East Coast before moving to California at the age of 12. He followed in his father’s footsteps, going to medical school and training in surgery. After working in the Bay Area for several years, he moved to Orange County in 2010 and has established a practice focused on advanced minimally invasive treatments.</p> <p>Outside the hospital, he enjoys travel, racquetball, and music.</p>

Dr. Gary Nishanian is a board-certified vascular surgeon serving North and South Orange County as well as the surrounding Southern California areas. Dr. Nishanian & his skilled team are proud to announce the opening of their new office in Irvine, California. This larger facility will provide all the care you are used to as well as laser treatment of vascular lesions. This new office has plenty of shaded free parking.<br><br>Dr. Nishanian has been providing comprehensive treatment of vascular disorders for the past 13 years. Dr. Nishanian established the Vascular & Endovascular Institute of Orange County after being recruited by Mission Hospital in 2007 to serve the needs of the growing community. He has proudly served surrounding communities since that time. Dr. Nishanian has offices in Irvine, and in Mission Viejo. He treats patients from Rancho Santa Margarita, Sherman Oaks, Coto de Caza, San Diego, Fullerton, Laguna Beach, Newport Beach, Los Angeles, Laguna Niguel, Dana Point, Tustin, Costa Mesa, Aliso Viejo, Irvine, San Juan Capistrano, San Clemente.<br><br>Dr. Nishanian graduated with his medical degree from Tulane Medical School which was ranked in the top 10 Medical Schools in the United States. He then returned to Los Angeles, California to complete postgraduate residency training in General Surgery at Kaiser Permanente Los Angeles, serving as Chief Resident during his final year. During his residency years, he also received additional research fellowship training in Cardiothoracic Surgery and Transplantation at the University Of Southern California School Of Medicine.<br><br>Seeking a higher level of vascular and endovascular training, Dr. Nishanian completed fellowship training in Vascular Surgery & Endovascular Surgery at Harbor-UCLA Medical Center. He is Fellowship trained in the management of vascular disorders with expertise in minimally invasive Interventional treatment of vascular disease. Dr. Gary Nishanian obtained General Surgery Board Certification in 1999 and Vascular Surgery Board Certification in 2001 immediately following the completion of his training. He has recertified in both specialties - in 2008 and 2010, respectively. He is also a Diplomate of the American Board of Venous and Lymphatic Medicine.<br><br>Dr. Nishanian is a Fellow of the American College of Surgeons, and a member of numerous national and local vascular societies including the Society for Vascular Surgery, the Southern California Vascular Surgery Society and the Society for Vascular Ultrasound.<br><br>In addition to his training and practice experience, Dr. Nishanian also serves as an Assistant Clinical Professor at the University of California Irvine School of Medicine. He is formerly the Chief of Vascular Rotation for the Residency Program in Podiatric Medicine and Surgery at Aestheticare Surgery Center and Mission Regional Medical Center. His academic activities also include authoring scientific articles and abstracts, as well as giving lectures throughout the local communities he has worked in.