What is Chronic Kidney Disease?

Chronic Kidney Disease (also known as Chronic Renal Failure) is the progressive loss of kidney function occurring over a span of several months to several years and is characterised by the replacement of kidney architecture with interstitial fibrosis.

Chronic kidney disease is classified into five stages on the basis or proteinuria (presence of protein in large amounts in the urine) or Glomerular Filtration Rate (GFR) - 1 being the mildest with no distinct symptoms and 5 being end stage renal failure.

Causes and Risk Factors of Chronic Kidney Disease-

The various reasons (called risk factors) that can increase chances of Chronic Kidney Diseases are:

Diabetes mellitus, hyperlipidemia (excess fat proteins in the blood)
Hypertension

Family history heritable renal disease

Older age, smoking

Autoimmune disease

Past episodes of acute renal disease

The direct causes of Chronic Kidney Diseases are-

Diabetic nephropathy (leading cause)

Hypertensive nephropathy

Glomerulonephritis (swelling of the glomerulus in the kidneys)

Reno-vascular disease (ischemic nephropathy)

Polycystic kidney disease

HIV-associated nephropathy

Transplant allograft failure

Exposure to drugs and toxins

Diet that you must maintain in Chronic Kidney Disease-

It is essential to make dietary as well as lifestyle amends once you are diagnosed with CKD. The main purpose of this diet is to maintain the levels of carbohydrates, fluids and minerals. This is done to prevent the buildup of waste products in the body as the kidneys are unable to fulfil its function properly.

It is recommended to refer a dietician who can make you a diet chart that helps you adhere to your diet.

Here is a list of food items that you may avoid or may consume if you are suffering from Chronic Kidney Disease:

Carbohydrates : Carbohydrates are a good source of energy. If the intake of protein has been restricted, then it is recommended to replace that with carbohydrates as a source of energy. Fruits, vegetables, grains and bread can be consumed as they are rich source of fibres, minerals and various types of vitamins. You can indulge in some hard candies or sweets as well.

Fats: Fats can provide a good amount of calories as well. Ensure that you only stick to healthy fats such as the monounsaturated and polyunsaturated fats that are good for your cardiac health. 

Reduce your phosphorus intake: A diet with no more than 800 mg of phosphorus can help reduce the risk of too much phosphorus building up in your blood.  Limit intake of foods with high levels of phosphate or phosphate additives such as organ meats, whole grain breads, processed foods, cola beverages, cheese, dried beans, liver, peanut butter, dairy products and chocolate. Many beverages and processed foods have these additives. Other high-phosphorus foods to limit include: 

Cheese
Chocolate
Ice cream
Legumes
Milk
Nuts
Seeds
Yogurt
Monitor your potassium levels: Usually, potassium is not restricted in stage 3 CKD unless lab tests show potassium is too high. Your doctor may make medication changes or prescribe a low-potassium diet. Reduce an elevated potassium level by limiting some high-potassium foods and potassium chloride (found in salt substitute and many low-sodium processed foods), such as avocado, bananas, cantaloupe, honeydew, legumes, milk, nuts, potatoes, seeds, tomato products and yogurt. Some high-potassium foods to limit or avoid include: 
Avocado
Bananas
Cantaloupe and honeydew melon
Dried fruit
Legumes
Milk
Nuts and seeds
Oranges and orange juice
Potatoes
Pumpkin and winter squash
Tomato products (juices, sauces, paste)
Yogurt
Proteins: Usually, before undergoing dialysis, it is recommended to adhere to a low-protein intake diet. However when you are undergoing dialysis, it is necessary to consume a certain amount of protein. This detailed information can be obtained from your dietician.
Fluids: In the early stages of CKD, your fluid intake is not monitored. But as the disease progresses, you need to check your intake of fluids as too much fluids may accumulate in your body and create pressure on your kidneys.

Sodium Or Salt Intake: Keeping a check on your salt intake reduces the risks of high blood pressure. Also, having food low on salt can reduce your thirst and prevent fluid retention in your body.

Diet In Chronic Kidney Disease

If you notice blood in the stool or the toilet bowl, it could be a case of rectal bleeding. There are many reasons why rectal bleeding can occur, the most common one being haemorrhoids. If the rectal bleeding is not significant then it is not a cause for concern. But if you lose a lot of blood then it can be a major problem.

What are the signs?

The most obvious one, in this case, is the presence of blood in your stool. But it's not just the presence of blood that is important here, the colour of the blood is also a very important indicator of what is wrong.

Black colour indicates that you are bleeding from the upper region of the small intestine

A bright red colour is an indication of the blood loss from the lower part of the gastrointestinal tract   rectum or colon

Dark red indicates that the bleeding is taking place at the initial region of the colon

Some other symptoms you may experience are  

Confusion

Pain in the rectum

Stomach cramps

A sensation of dizziness

Causes of rectal bleeding

Causes of rectal bleeding can be divided into mild and serious. 

Mild causes  

Constipation 

Small tears in the anal lining (anal fissures)

Haemorrhoids

Small growths of tissue in the rectum or colon

Serious causes  

Cancer of the colon and anus

Inflammatory bowel disease

An infection of the intestine such as salmonella

How is it treated?

If you lose a lot of blood, then it is a medical emergency. You should rush to the doctor if you experience the following   fainting, intense pain in the stomach, confusion, and rapid breathing.

The doctor will prescribe treatment based on the cause of your rectal bleeding. For example, if the cause is haemorrhoids then warm baths will help soothe the pain. If the haemorrhoids are large then invasive methods such as laser treatments and surgery are prescribed. 

Or if it is constipation then stool softeners are a good option. In addition, you may have to eat a high fibre diet and exercise regularly to normalize your bowel movements. 

Rectal bleeding can be a minor inconvenience or a major problem depending on the cause. So it is best to consult a doctor and seek immediate treatment.

Rectum Bleeding - How To Administer It?

Kidney stones are caused when certain minerals of your urine are retained and are not fully released, causing them to amalgamate and form a stone. Passing a kidney stone is one of the most painful experiences you may face physically. Its magnanimity is often compared to childbirth, and those who are suffering from kidney stones dread having this experience. If you are not yet affected by kidney stones and do not want to, read further to know what type of diet you need to follow in order to prevent it.

1. Drink lots of water: On an average, a person must be drinking at least 3 liters of water every day. If you live in a more hot and humid climate, your water intake must be even more than that, so that on an average, 2.5 liters of urine is passed throughout the day, which decreases the chance of unnecessary retention of minerals from the urine and release them more easily from the body.

2. Continue eating foods rich in calcium: It is a common misconception that calcium accelerates the formation of kidney stones. Calcium is digested by the intestine, only excess calcium cannot be digested by the intestine and is sent to the kidney. Continue consuming calcium rich foods unless your doctor prescribes you against it. Make sure your diet includes enough dairy products such as milk, cheeses, etc., or other calcium rich foods, such as oats and broccoli.

3. Limit intake of oxalic acid: Oxalic acid is mostly found in foods obtained from plants. It restricts the absorption of calcium in the intestines and as a result, more calcium is passed into the kidneys; thus, forming calcium oxalate, or oxalate stones. Try to avoid foods, such as rhubarb, Swiss chard, nuts, tea, sweet potatoes, etc.;mainly leguminous plant products.

4. Decrease the ingestion of sodium salts, sugar and meat protein: Salts and sugars, mainly found in packaged foods are used to prevent them from expiring. They increase the release of calcium and oxalates into the blood, which thus increases the chance to develop kidney stones. Meat contains fibers which affect certain nutrients in the kidney, thus aggravating the formation of stones.

5. Increase the consumption of insoluble fibers: Insoluble fibers are those rough fibers which are not soluble in water during the process of digestion. They are found in rice, wheat, barley, etc., and are found to decrease calcium absorption in the kidney. They attach themselves to the calcium and oxalates, which enable them to be released as stool instead of urine.

Kidney Stones and Your Diet

Problems of the large intestine are very common and patients should usually consult gastroenterologists for the proper diagnosis and treatment

1. Bleeding per rectum: Bleeding through the anal canal or rectum is usually the most common problem of the patients. It can be due to following reasons: 

A. Piles also known as Hemorrhoids: Hemorrhoids are dilated venous channels of the anal canal. They occur due to long term constipation or chronic cough or due to less fibre intake in the diet. Sigmoidoscopy or proctoscopy is required for diagnosis. Treatment options include medicines and high fibre intake, Injection therapy(Sclerotherapy) for stopping bleeding from piles and Stapler hemorrhoidectomy if the piles are large.

B.  Polyps: Polyps are soft tissue growths seen in the large intestine. They are usually silent but can present with bleeding or anaemia. Polyps usually grow slowly in size and large polyps can turn into cancer of large intestine also known as colorectal carcinoma. Colonoscopy is required for the diagnosis. The gastroenterologists can diagnose the presence of polyps by colonoscopy. Smaller polyps can be removed by polypectomy by gastroenterologists without the need for open surgery. However large polyps or those polyps with suspicion of cancer require surgery.

C. Large intestine Ulcer: They can occur due to early cancer, SRUS, Infections or drugs. They require colonoscopy for the diagnosis. The gastroenterologists usually take Biopsy from the ulcer to know the cause of the ulcer. The mere taking of biopsy does not mean cancer and biopsy samples are seen in the microscope for better diagnosis.

D. Ulcerative Colitis and Crohn s disease: Ulcerative colitis is one form of Inflammatory bowel disease (IBD). The other IBD is known as Crohn s disease. Whereas ulcerative colitis involves only large intestine, Crohn s disease can involve any part of the gastrointestinal tract including small intestine. Ulcerative colitis and Crohn s disease present with Loose stools(diarrhea), bleeding , abdominal pain, weight loss, Anemia and Perianal fissures and  fistula. The diagnosis of IBD is challenging and involves blood tests, CT Scan abdomen, Colonoscopy with biopsy and clinical history. Management includes Medicines which control the inflammation such as Pentasa, Rowasa, Mesacol etc. Severe disease requires additional drugs such as Azathioprine and Anti TNF sich as Infliximab and Adalimumab. Occasional cases require surgery such as those with tight stricture of the intestine, severe dilatation of Large intestine (also known as Toxic megacolon), excessive bleeding, the disease not responding to medical management, or presence of cancer with IBD.

E. Anal fissures: Cut in the anal skin (fissure) causes severe pain in the anal area during passing motions. It is usually due to constipation or straining. It is usually treated by Gastroenterologists initially by medicines and ointments. If the pain continues Surgery is required named as Lateral internal sphincterotomy (LIS).

2. Loose motions or Diarrhea: Excessive passing of liquid motions is known as diarrhea or commonly lose motions. It is usually due to Infections caused by contaminated food and water. It is usually self-limiting. Severe cases with dehydration require admission for IV fluids and antibiotics for the infection. Loose motions for more than 6 to 8 weeks is known as chronic diarrhea. It is evaluated by blood tests and colonoscopy. Usual causes include tuberculosis, celiac disease, ulcerative colitis, microscopic colitis, Malabsorption such as chronic pancreatitis and small bowel bacterial overgrowth.

3. Irritable bowel syndrome (IBS): IBS is very common and at least 20 to 30 percent of Indian patients suffer from it. Symptoms include altered bowel habits such as diarrhoea or constipation, abdominal pain which is usually relieved or increased by defecation. Weight loss or bleeding is not the feature of IBS. Few simple blood tests are required and good medicines are now available for IBS. Few cases may require colonoscopy to rule out alternative causes of the symptoms.

Understanding colonoscopy: Colonoscope is a flexible tube with a camera at its tip to see the inside of the large and small intestine. Bowel preparation is required at least 8 hours before the procedure so that the inside of the large intestine can be seen clearly without the interference of stools.colonoscopy is an OPD based procedure where the patients are discharged the same day. A colonoscopy helps in evaluation symptoms of the large intestine such as loose stools, bleeding and abdominal pain.

In Detail About Colorectal Disorders!

Colorectal surgery is the broad term for surgical procedures performed on the colon, the rectum and the anus. There are various different surgical procedures which fall under colorectal surgery and these are used to treat a vast array of disorders, such as:
1. Anal cancer
2. Colorectal cancer
3. Severe complications related to constipation
4. Anal injuries
5. Inflammatory conditions of the gastrointestinal tract
6. Congenital defects

Procedures
The surgeries under colorectal surgery are performed after diagnostic tests such as proctoscopy, sigmoidoscopy and defecating proctography. The most common diagnostic test is colonoscopy. These help to identify the origin and nature of the problem and decide which surgical procedure is to be followed. The procedures under colorectal surgery are as follows:

Colectomy
This procedure involves removal of a section of the large intestine. This is known as partial colectomy. In extreme cases, such as advanced cancer or severe gastrointestinal infection, the entire colon is removed and this is called total colectomy. Sometimes, the rectum is also taken out along with the colon and this is called proctocolectomy.

Colonic polypectomy
An abnormal growth of tissues in the inner lining of an organ is known as a polyp. Colonic polypectomy is done to eliminate polyps from the colon and rectum before they become malignant. This can be done endoscopically. Surgery is required in case of large polyps.

Strictureplasty
Chronic or repeated bowel inflammation causes scar tissue to accumulate in the large intestine. This results in the narrowing of the colon. Stricturoplasty removes the scar tissue so that proper flow of digestive contents is resumed.

Colostomy or ileostomy
A damaged section of the colon is removed and the shortened intestine is then attached to another opening (stoma) in the anterior wall of the abdomen.

Hemorrhoidectomy
This surgical process is used for swollen hemorrhoids or blood vessels, which form in the anal canal. Hemorrhoidectomy is extremely effective in removing hemorrhoids, but the surgery also involves a number of complications.

Anoplasty
Anoplasty or imperforate anus correction is done to correct birth defects in the rectum and the anus. The structural flaw does not allow the stool to pass properly from the rectum and so it is repaired through surgery.

All About Colorectal Surgery

The ideal diet after a kidney transplant

A kidney transplant is a surgical procedure where your kidneys are cleansed and rebuild using the kidneys of a deceased person, in order to flush out the excessive waste fluids from the kidneys. It is of paramount importance and your dietary patterns and lifestyle should be altered after you go through a kidney transplant. Your dietician will help you out by preparing your diet chart to clearly list out the foods that you should consume and those which you should avoid after the surgery. The diet chart that would be prepared for you would be highly subjective and it would totally depend  on your lifestyle, medical history, family health records, genetically transmitted conditions and such others. Apart from improving the condition of your kidney and assisting your transplant, the diet chart will also help you to lose weight, boost your metabolism and enhance your immune system. Some of the most common recommendations that your dietician may give you are as follows:

-Eating at least 5 full servings of fresh fruits and vegetables each day as both are an important part of a healthy diet for a person who has just undergone a kidney transplant. The vegetables should mostly be eaten after cooking/boiling as per the suggestions of your dietician.
-Having enough of fiber rich foods in your daily diet is essential as it speeds up the process of digestion and prevents constipation by promoting frequent and easy bowel movements.
-If you are a non-vegetarian, then you should be going for lean meat alternatives which are low on fat and high on nutritional value. -Examples of such meat are fishes and poultry. Additionally, you should also avoid all kinds of red meat as it is high on fat.
-Consume low-fat milk and dairy products as they help to prevent the fat accumulation inside the body and also maintain an acceptable level of calcium and phosphorus inside your body.
-Maintain a low level of iodized salt in your meals, as it helps to keep your blood pressure under control.
Over the counter health supplements like vitamins and proteins can also be taken, if recommended by your dietician.

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The Ideal Diet after a Kidney Transplant

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