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

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?

Hemorrhoids can be very painful and are impossible to ignore. They can be defined as internal or external swollen veins. In some cases, making a few lifestyle changes such as eating fiber-rich foods and drinking plenty of water may be enough to relieve the problem. In other cases, surgery may be required. Surgery for hemorrhoids depends on the severity of the case. There are many different types of surgeries that may be performed.

Banding
Banding or rubber band ligation is a surgical process used to treat internal hemorrhoids. This involves placing a tight band around the hemorrhoid base to cut off its blood supply. This procedure does not involve the use of anesthesia.

Sclerotherapy
This is also used to treat internal hemorrhoids. It involves injecting a particular chemical into the hemorrhoid that makes the hemorrhoid shrink and keeps it from bleeding. This procedure does not involve the use of anesthesia.

Coagulation therapy
Coagulation therapy is also referred to as infrared photocoagulation. The procedure involves the use of infrared light and extreme heat and cold. The aim here is to help the hemorrhoid shrink and retract. It may be performed with an anoscopy. An anoscopy is a procedure that allows the doctor to look inside the rectum with the help of a scope. This procedure does not involve the use of anesthesia.

Hemorrhoidal artery ligation
Hemorrhoidal artery ligation (HAL) or transanal hemorrhoidal dearterialization (THD) is often used to remove hemorrhoids. It involves using an ultrasound to locate the swollen blood vessels and then closing these off. This procedure does not involve the use of anesthesia.

Hemorrhoidectomy
Large external hemorrhoids can be treated with a hemorrhoidectomy. Internal hemorrhoids that have prolapsed and are not responding to other forms of treatment can also be treated with this procedure. The procedure is performed while the patient is under general anesthesia or local anesthesia. The hemorrhoids are then cut off surgically. Hospitalization may be required for a few days after this procedure.

Hemorrhoidopexy
This procedure is also known as stapling and may be performed while the patient is under local or general anesthesia. It is typically used to treat prolapsed hemorrhoids. During the procedure, the doctor staples the prolapsed hemorrhoid to the walls of the rectum and cuts of the blood supply to the affected vein. By doing this, the tissue is allowed to shrink and be reabsorbed into the body. As compared to a hemorrhoidectomy, stapling is less painful and has a quicker recovery time. 

Surgical Treatment Of Hemorrhoids!

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!

Read to know why choosing diet drinks over regular beverages is not good for your health. The diet contains aspartame which is reportedly 200 times sweeter than table sugar. It adversely effects the brain, increases belly fat, headache, abdominal pain etc. 

Diet Drinks vs. Regular Beverages: Which is Worse For Your Health?

Is Constipation the Only Cause of Piles? + It's Symptoms

Piles, which are also called hemorrhoids, refer to the swelling of the veins near the anus and rectum, which get irritated during bowel movements, causing pain and bleeding during stool motions. The veins near the rectum or the anus may rupture during strained bowel movements and thus, cause the blood to come out with the stool. This can be very painful for the patient and has a very disruptive effect on their lives.

Causes of Piles

There may be many causes for piles or hemorrhoids and the cause may vary from patient to patient. Let's have a look at a few of them.

Straining when passing a stool - This is by far the most common reason for piles and this is what causes the irritation on the veins or causes them to rupture

Chronic Constipation: People suffering from chronic constipation due to gastrointestinal problems may also suffer from piles due to putting pressure constantly to relieve themselves.

Lifting a heavy weight or doing strenuous work: This can also put physical stress on the anus or rectum and cause swollen veins, which may then rupture during the passage of stool.

Pregnancy - Pregnancy causes many hormonal changes in the body and the strain may also result in piles.

Symptoms of Piles

Some of the symptoms of piles or hemorrhoids are:

- Painful bowel movements, which hurt the rectum or the anus, accompanied by general tenderness within the region
- Bleeding or seeping of a bright red color blood onto the stool on the toilet or even on toilet paper
- Itching in the anal areas, which may be continuous or intermittent
- A swelling or lump near the anus, which is painful
- A mucus-like discharge from the anus

There may be one or more factors present in particular cases and if there is a pain in the rectal area, it is best to get it checked out by a doctor as soon as possible.

If you would like to consult with me privately, please click on 'Consult'.

Is Constipation the Only Cause of Piles? + It's Symptoms

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