Renal Tubular Acidosis is a medical condition. When the kidney is unable to acidify urine, it leads to the accumulation of acid in the body. Usually, when blood is filtered by the kidney, it passes through the tubules of the nephrons (the functional unit of the kidney).

Before it flows into the bladder from the kidney, the urine undergoes an exchange of salts, acids and other solutes. Renal tubular acidosis results in the formation of excessive amounts of acid because the kidneys cannot drain them. This may happen because the kidneys cannot reabsorb the alkaline bicarbonate ions from the urine in the early segment of the nephron or because of inadequate production of acidic hydrogen ions in the latter half of the nephron.

Renal Tubular Acidosis is simply associated with abnormal urinary acidification. Other functions of the kidneys remain unimpaired.
There are several different types of renal tubular acidosis-

  Distal Renal Tubular Acidosis (RTA)
This is the most fundamental form of RTA. It is characterized when the hydrogen ions are not secreted into the lumen of the nephron by the alpha-intercalated cells of the medullary collective duct of the distal nephron. When this happens the pH of urine cannot be brought down below 5.3. Renal excretion is inhibited and hydrogen ions are not eliminated which leads to academia. At the same time, Potassium ions cannot be absorbed by the cell which leads to hypokalemia. The end result is protein retention and potassium excretion. Distal RTA can lead to the urinary stone formation, calcium deposits in the kidney, rickets and osteomalacia and Sjogren s syndrome.

  Proximal RTA
When proximal tubular cells reabsorb 85% of filtered bicarbonates and 60% of filtered sodium from the urine, then this again leads to academia. The distal intercalated cells, however, function normally and so the academia is not as severe as in case of Distal RTA. The alpha-intercalated cells can acidify urine to a pH of 5.3 or less because they produce hydrogen ions. Proximal RTA is also associated with Fanconi Syndrome which is characterized by aminoaciduria, uricosuria, glucosuria, and tubular proteinuria.

  Combined distal and proximal RTA
Inherited carbonic anhydrase II deficit leads to combined distal and proximal RTA. This is accompanied by osteopetrosis, cerebral calcification, and renal tubular acidosis. Cases of combined distal and proximal RTA are very rare.

How is RTA understood?
The following steps are applied to analyze Renal Tubular Acidosis-
  Determining the anion gap in acidosis. The normal Anion Gap is 8-12 (4-6 mEq/L)
  Separating the renal from the extrarenal causes of normal anion gap acidosis
  Classifying the types of RTA
  If it is distal RTA, further tests will be necessary to support the diagnosis

How is RTA diagnosed?
Three types of tests can reveal if a person is affected by Renal Tubular Acidosis-
  Urine test
  Acid load test
  Physical examination

Treatment of RTA-
Doctors prescribe either or both of the following two types of therapies-

  Alkali therapy- The pH level of urine is restored and electrolytes are balanced
  Vitamin D supplements- If RTA leads to bone deformities or rickets, your doctor will prescribe vitamin supplements to strengthen your bones.

Timely diagnosis can prevent the effects of Renal tubular Acidosis from becoming compounded. With the right medication, a person can lead a healthy normal life.

What Should You Know About Renal Tubular Acidosis?

The word colic directly refers to the colon. Colic pain is a sharp abdominal pain followed by bouts of crying usually occurring in infants below the age of one year. The pain only last for a short period of time ranging from a few weeks to a couple of months. Very few number of babies will cry endlessly indicating towards an underlying condition.

It is mainly characterized by sharp crying for supposedly no apparent reason, irregular sleep patterns, and restlessness or owing to deviation from normal postures. The apparent causes of colic pain include indigestion and negative reaction of the sensitive gut to the breast or formula milk, although no concrete cause of the state has been discovered.

Doctors often suggest home remedies such as swaddling, pacifiers, holding and comforting the baby and more frequent feedings to reduce the condition. Since it is so common among infants and relatively less harmful, no proper medication is usually given. Physicians suggest mothers to reduce the content of caffeine, alcohol or spice in their diet. Sometimes a warm bath, burping the baby or going on more frequent walks is useful. Background music draws the attention of the baby and hence drives their focus, away from the abdominal pains.

Colic pains are mainly treated by care rather than medicine. The baby is made to feel comfortable and the distress is reduced just by being around the infant. The primary care giver plays an important role in consoling the child and helping them get through the sudden pain which further plays a significant role in personality development. Colic pains are extremely short lived and probably one of the first few challenges of parenthood. They are primarily dealt with care and feeding except in extreme cases where medicinal cures such as lactase drops and simethicone drops are used to treat the abdominal pain.

Colic Pain - How To Treat It

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?

Colorectal surgery: How to be sure you need it?

Colorectal surgery is performed to repair damages that occur in the organs of the anus, rectum, and colon. The damage that takes place in these organs can be the result of problems with lower GI like diverticulitis (a condition wherein pouches known as diverticula in the colon wall become inflamed), cancer and inflammatory bowel disease (a group of intestinal disorders that bring about inflammation of the GI).

Who needs this surgery?

In general, colorectal surgery is an essential treatment option for ulcerative colitis, colorectal cancer, Crohn's disease (an inflammatory bowel disease that gives rise to inflammation of the gastrointestinal tract) as well as certain diverticulitis cases. In such cases, the intestinal tract undergoes major reconstruction.

There are also other bowel problems that may require surgery but not of a serious nature and these are anal fissures, hemorrhoids, bowel incontinence and rectal prolapse. Most of the surgical procedures will aid in repairing tears, get rid of blockages, or make tighter sphincter muscles (muscles that surround openings in the body).

Colorectal surgery is also performed in cases of pelvic floor disorders like rectocele (a condition in which the rectum bulges towards the vagina) and perineal hernia (a hernia that involves the pelvic floor).

At the same time, injury, ischemia or compromised blood supply and obstruction may require the performance of bowel surgery as well. Scar tissue and masses can form within the rectum, clogging the organ and preventing the normal discharge of feces from the body.

Problems like ulcerative colitis (an inflammatory bowel disease that leads to the development of ulcers in the colon as well as inflammation of the area) and diverticulitis can give rise to perforations in the rectum. Surgery is suggested in instances when drugs fail to treat the problem of ulcerative colitis.

Likewise, in the case of recurrent instances of perforations or complications in diverticulitis, surgery may be required to remove the portion of the colon affected.



Colorectal Surgery: How To Be Sure You Really Need it

A Gastroenterologist is a physician with dedicated training and unique experience in the management of diseases of the gastrointestinal tract and liver. If you are planning to visit one, you most likely have a problem in one or many organs like esophagus, stomach, small intestine, colon and rectum, pancreas, gallbladder, bile ducts and liver. 

Visit your doctor to understand the severity of your condition and the course of treatment, as it is obvious that during this time you must be suffering from anxiety and you may not ask the questions arising in your mind. That is why you need to prepare in advance for your first visit with a gastroenterologist. Being an active partner in the doctor patient relationship is bound to have its benefits. Here are some handy tips:

1. Come mentally prepared: Don't let the anxiety get to you. If you need some extra help calming down, try yoga or meditation. You can simply go out on a walk alone to help you focus your thoughts. This is just like any other doctor visit. The good part is that you are taking the first step in easing your discomfort and starting treatment, so go with a positive mind.

2. Maintain a diary of symptoms: It is likely that you are experiencing discomfort from past few days or weeks before you finally realize the need to seek out a specialist. Try to remember as much as possible about the symptoms you experienced in a chronological order. Write down any over the counter medicines you've tried or anything unusual that you may have consumed in the past week. 

3. Take stock of your medical history: It is likely that your doctor may want to know about any historic conditions you've suffered that may or may not relate to your present condition. Many ask you to fill out forms during your first time patient registration which includes many minor details about your medical past. List down any allergies, especially food allergies you have. 

4. Take stock of your recent medical tests: Bring your latest blood tests and imaging tests (X-rays, ultrasounds, MRIs, and CT scans) with you for the doctor's visit. If you have a pre-existing condition like diabetes, thyroid or you suffer from other chronic conditions like increased uric acid, carry your most recent medical reports with you. 

5. Make a list of questions for the doctor: In most cases, the first visit is a crucial factor in determining whether you want to continue the course of treatment with a particular doctor. This comes out of your ability to trust the doctor, his knowledge and diagnosis and an overall comfort level that comes with how well he handles your questions. Start by making a list of questions you want to ask about your specific condition and course of treatment and see if you get satisfactory answers. 

6. Brace yourself: If you want to suggest a treatment option, make sure you read up all about it before you tell the doctor.

6 Tips For Your First Visit With A Gastroenterologist

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!

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