Hemorrhoids Update Review » hemorrhoidectomy

Hemorroids overview

admin — Sun, 06 Jun 2010 02:33:10 +0000

In the upper anal canal, the hemorrhoids cushions are composed of three submucosal pillars of sinusoids within connective tissue, generally in the left lateral, right anterior, and right posterior. During the act of defecation, the hemorrhoids cushions become engorged with blood, cushioning the anal canal and supporting the anal canal lining. The pathologic term hemorrhoids is used to describe the downward displacement of the cushion along with dilation of the contained sinusoids and sometimes bleeding from the arteriole, venule, or sinusoidal portion.Hence, hemorrhoids develop when the supporting tissues of the anal cushion deteriorate or with extensive downward pressure, as in prolonged straining at stool or pregnancy.

The most common complaints of burning, itching, swelling, and pain usually are not from hemorrhoids but result from pruritus ani, anal abrasion, anal fissure, thrombosed external hemorrhoids, or prolapsed anal papilla. Symptoms are aggravated by constipation and diarrhea. The most common manifestation of hemorrhoids is painless, bright red rectal bleeding associated with bowel movement. With severe hemorrhoids,the patient commonly describes the bleeding episode as blood dripping into the toilet bowl. A feeling of incomplete evacuation is also common. In chronic prolapse, exposed rectal mucosa often causes perianal irritation and mucus staining on the underwear. Congestion of external hemorrhoids or skin tags can cause discomfort. Except in the presence of thrombosis, pain is rarely an early symptom of hemorrhoidal disease and other diagnoses should be excluded.

According to modern concepts, prolapse of anal cushions is initiated by the shearing effect of the passage of a hard stool or by excessive downward pressure as with constipation, pregnancy, or childbirth, or by the precipitous act of defecation as in urgent diarrhea. If prolapse of the vascular cushions can be prevented or if the congesting effect of a tight anal canal can be abolished, the anal cushions return to their normal state and symptoms are ameliorated without necessitating removal of the cushions themselves. Therefore, the rationale of giving bulk in the diet is to eliminate straining at defecation by producing soft, bulky stool. A high-fiber diet usually reduces symptoms of hemorrhoids and is ideal for first- and second-degree hemorrhoids.

Stapled Hemorrhoidectomy, a New Treatment

admin — Mon, 07 Dec 2009 03:46:28 +0000

A new entry into the arena of excisional hemorrhoidectomy is the circular stapled hemorrhoidectomy .The technique uses a circular, transanally placed pursestring suture 4 cm from the dentate line and within the enlarged internal hemorrhoids. A 31-mm stapler is then placed transanally to perform a circumferential excision of the hemorrhoidal tissue and a repositioning and fixation of the anoderm to its proper location in the anal canal. The results appear promising, with decreased postoperative pain, shorter periods of convalescence, and similar complication rates compared with other forms of excisional hemorrhoidectomy.

Type of Hemorrhoidectomy Treatment

admin — Mon, 07 Dec 2009 03:42:14 +0000

Options for hemorrhoidectomy include the techniques of Milligan-Morgan hemorrhoidectomy, closed Ferguson hemorrhoidectomy, Whitehead hemorrhoidectomy, and the stapled hemorrhoidectomy. The procedures are usually performed in the operating room after minimal preoperative preparation of the bowel. Lasers have no role to play in excisional hemorrhoidectomy, and in fact they cause delayed healing, increased pain, and increased cost.Anesthetic management is usually left to the anesthesiologist and patient; however, local anesthesia supplemented by the administration of intravenous narcotics and propofol is very effective. The use of spinal anesthesia, although effective, may increase the risk of postoperative urinary retention.

The Milligan-Morgan hemorrhoidectomy, which is widely practiced in Europe, was originally described in 1937, and its efficacy has been subsequently documented in many series.This technique includes resection of the entire enlarged internal hemorrhoid complex, ligation of the arterial pedicle, and preservation of the intervening anoderm.[33] The distal anoderm and external skin is left open to minimize the risk of infection in the wounds. This technique is safe and effective. However, the fact that the external wounds are left open can be a cause of considerable discomfort and prolonged morbidity.

The closed Ferguson hemorrhoidectomy was proposed as an alternative to the Milligan-Morgan technique and has a similar large body of reported experience. This technique involves an hourglass-shaped (centered at the midportion of the anoderm) excision of the entire internal/external hemorrhoidal complex, preservation of the internal and external anal sphincters, and primary closure of the entire wound. Occasionally, it is necessary to undermine flaps of anoderm and perianal skin to allow removal of intermediate hemorrhoidal tissue while preserving the bridges of anoderm between pedicles. This technical adjustment avoids postoperative strictures.

The Whitehead hemorrhoidectomy, described in 1882, was devised to eradicate the enlarged internal hemorrhoidal tissue in a circumferential fashion and to relocate the prolapse dentate line, which is often a component of prolapsing hemorrhoids. Although this technique was used widely, it was subsequently largely abandoned because of the high rates of mucosal ectropion and anal stricture.The technique has had renewed support, with several authors who documented minimal stricture rates and no occurrences of mucosal ectropion.Despite these promising reports, the Whitehead procedure is technically demanding because of the need to accurately identify the dentate line and relocate it to its proper position

Hemorrhoids Surgery – Hemorrhoidectomy

admin — Mon, 07 Dec 2009 03:40:00 +0000

The decision to excise the hemorrhoidal plexi requires acceptance by the physician and patient that medical and non-excisional options have either failed or are not appropriate. The usual clinical symptoms that lead to excision are frequent prolapsing of the internal hemorrhoids that results in discomfort and anal seepage. Alternatively, the thickened and prolapsing internal/external hemorrhoidal complexes may make anal hygiene difficult for the patient and may make excision preferable. The final indication for excisional hemorrhoidectomy, although debatable, is the development of acutely thrombosed and gangrenous internal hemorrhoids. It is apparent, however, that hemorrhoidectomy can be performed using standard closed hemorrhoidectomy techniques without undue complications. Specifically, the risk of stenosis appears unwarranted if careful technique is used and the maximum amount of anoderm is preserved with skin bridges between excision sites. In the case of limited external hemorrhoidal thromboses, surgical excision is warranted for more rapid pain relief and avoidance of a residual skin tag.External thromboses are usually easily managed in an office setting with local anesthesia

A, Thrombosed external hemorrhoid in the right lateral quadrant. B, Allis clamp applied to apex of thrombosis and elliptical incision made. C, Thrombosis dissected free of sphincter. D, Appearance of wound after thrombectomy.

Hemorrhoidectomy Complication

admin — Mon, 07 Dec 2009 03:36:57 +0000

Regardless of the excisional technique used for the treatment of advanced hemorrhoids, the key to effective patient management is avoiding postoperative complications. Pain is the most frequent complication and the most feared sequela of the procedure from the patient’s perspective. A variety of analgesic regimens have been recommended, usually consisting of a combination of oral and parenteral narcotics.The use of local infiltration of bupivicaine into the wounds and perianal skin has been variably successful in long-term pain reduction.Conversely, ketorolac has demonstrated considerable efficacy in the management of posthemorrhoidectomy pain.The use of alternative administration routes for narcotics by either patch or subcutaneous pump has been successful in controlling pain, but the management of these routes of administration can be risky in the outpatient setting because of the risk of narcotic-induced respiratory depression. The most appropriate regimen after outpatient hemorrhoidectomy appears to be the intraoperative use of ketorolac, sufficient doses of oral narcotic analgesics for home administration, and supplementation of the narcotics with oral nonsteroidal medication.

Urinary retention is a frequent postoperative problem after hemorrhoidectomy, ranging in incidence from 1 to 52%. A variety of strategies have been used to treat the problem, including parasympathomimetics, alpha-adrenergic-blocking agents, and sitz baths.The best approach, however, seems to be prevention that includes limiting perioperative fluid administration to 250 ml, an anesthetic approach that avoids the use of spinal anesthesia, the avoidance of anal packing, and an aggressive oral analgesic regimen.

Early postoperative bleeding (<24 hours) occurs in approximately 1% of patients and represents a technical error that requires return to the operating room for resuturing of the offending wound.Delayed hemorrhage occurs in 0.5 to 4% of cases of excisional hemorrhoidectomy at 5 to 10 days postoperatively.The cause is likely early separation of the ligated pedicle before adequate thrombosis in the feeding artery can occur.In this scenario, the bleeding is usually significant and requires some method for the control of ongoing hemorrhage. Options include return to the operating room for suture ligation or tamponade at the bedside with Foley catheter or anal packing. The subsequent outcome after the control of secondary hemorrhage is generally good with virtually no risk of recurrent bleeding. It may be helpful to irrigate the distal colorectum with posthemorrhage enemas or at the time of intraoperative control of bleeding to avoid confusion when the residual clots pass per anum.

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