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324
S.D. Holubar and D.E. Rivadeneira
Fig. 20.12 Acute thrombosed hemorrhoid following banding (Courtesy of Richard Billingham, MD)
Pain
Discomfort and pain after rubber band ligation is common (5–60 %), but severe pain uncommon is estimated to occur in approximately 5 % and may be related to either anospasm or from placing the bands too close to the dentate line. In gen­eral, bands should be placed at least 1–2 cm proximal to the dentate line. If this is the case, the band should be immedi­ately removed with a small blade. Occasionally, especially when patients re-present several hours later, there may be acute swelling that mandates examination under anesthesia to both remove the band and rule out signs of sepsis. Pain may also result from overzealous examination and resultant acute anal fi ssure. Typically this will get better on its own quickly, though may benefi t from topical pain medications such as lidocaine.
In a prospective study of over 512 patients, 2.5 % were hospitalized—half due to delayed massive bleeding, the oth­ers for fever and urinary retention, and three with severe pain due to acute thrombosis of external hemorrhoids (Fig. 20.12 )
39 ]. In this series, another 4.6 % developed minor complica-
[ tions, almost half of these for thrombosed external hemor­rhoids, and even several for priapism.
Bleeding
After banding, bleeding may be immediate or delayed, minor or massive [ 40 ].
Some surgeons suggest that patients who are on antico­agulants or antiplatelet agents are best managed by exci­sional hemorrhoidectomy as compared with rubber band ligation as the excisional technique hemostasis would seem to be more reliable to avoid delayed bleeding. However, at least one large study suggests the risk of bleeding to be low (1–2 %) even if these medications are not held, with the
exception of Plavix, which accounted for 50 % of the bleed­ing episodes [ 41 ]. In general, banding on anticoagulation medications and most antiplatelet agents is a relative contra­indication [
1 ].
Vasovagal Symptoms and Syncope
Placing patients in steep Trendelenburg’s position for the several minutes required for exam and band placement, as well as the stress and severe embarrassment some patients experience, may result in vasovagal symptoms and even syn­cope. It is wise to have smelling salts within reach of the providers so as to recognize pre-syncope and hopefully avoid a traumatic fall off the table.
Sepsis
Often discussed but rarely observed, perianal sepsis from rubber band ligation has been reported to result in need for fecal diversion and potentially death, largely due to over­whelming sepsis from Fournier’s gangrene. Of note, this has also been observed after excisional hemorrhoidectomy and PPH [ 42 ]. You must be familiar with presenting signs and symptoms, which include delayed urinary retention, fever, worsening/severe pain, excessive drainage, and shock. We tell our patients if they experience any one of these to report to the emergency department. Work-up may reveal leuke­moid reaction and extraluminal (retroperitoneal) gas and fl uid collections. Examination may range from relatively normal or a small amount of edema/infl ammation to celluli­tis and gangrene (Fig. 20.13 ). Given the potential for disas- trous outcomes, broad-spectrum antibiotics and prompt examination under anesthesia with debridement of necrotic tissue are recommended (Fig. 20.14 ).
Recurrence
The durability of rubber band ligation is known to be inferior to excisional hemorrhoidectomy, especially for grade III dis­ease. In many ways, recurrence can be more of an anticipated outcome than a complication, and patients should be coun­seled thusly [ 43 ]. Given a recurrence, we should note that prior banding is generally not a contraindication to addi­tional banding. In fact, most banding patients are satisfi ed with this treatment option. The impact of disease on the patient’s quality of life and ability to tolerate the increased time off work and pain associated with excisional he morrhoidectomy need to be reassessed prior to choosing the next treatment option. Nonetheless, re-banding is generally safe and moderately effi caciousness as reported by
20 Hemorrhoidal Disease: Postoperative Complications
Fig. 20.13 Fournier’s gangrene with cellulitis and ischemia (Courtesy of Philip Y. Pearson, MD)
325
Fig. 20.14 Wide debridement of Fournier’s gangrene (Courtesy of Philip Y. Pearson, MD)
Iyer et al. [ 44 ]. In their series of 805 patients and 2,114 bands, symptoms were successfully treated in 60–74 % of recurrences, with an overall cumulative success rate of 80 %.

Stapled Hemorrhoidopexy (PPH)

Indications: When Should We Be Using This Procedure?
Key Concept: There are a wide variety of opinions on the utility of stapled hemorrhoidopexy.
As mentioned in the surgical decision-making section earlier in the chapter, due to its increased recurrence rate, PPH should be used selectively as an alternative to conven­tional or bipolar excisional hemorrhoidectomy in patients with circumferential grade III hemorrhoidal disease without an especially large external component. PPH may also poten­tially be used in early grade IV hemorrhoidal disease, though we do not use it in these cases, or in the presence of gangre­nous hemorrhoids (Fig. 20.15 ).
Pescatori et al. reviewed the literature on severe compli­cations of PPH including chronic pain, rectal luminal oblit­eration, rectovaginal fi stula, pelvic sepsis, and need for proximal fecal diversion [ 45 ]. Their review found that fourth-degree hemorrhoidal disease was a relative contrain­dication to PPH as the results are worse and complications rates higher than in third-degree disease. Another relative
326
S.D. Holubar and D.E. Rivadeneira
complication is poor sphincter function, while anticipated future anoreceptive intercourse, enteroceles, and anismus are absolute contraindications. Complications after PPH are summarized in Table 20.9 [ 35 , 45 , 46 ]. Overall urinary reten- tion is most common. Among the others:
Chronic Pain
Pain and tenesmus after PPH can be a chronic problem after PPH. Cheetham et al. reported on 16 patients who were fol­lowed for over 6 months, and 1/3 had pain and urgency
which lasted for as long as 15 months [ patients had muscle incorporated into the donut (Fig.
47 ]. Most of these
20.16 ),
emphasizing the importance of mucosal only bites on the purse-string suture .
Recurrence
One of the weaknesses of this minimally invasive approach is that the long-term durability is questionable, especially given the short- and medium-term results are inferior to that of excisional hemorrhoidectomy [ 23 ]. In the Cochrane meta- analysis, similar to the more recent meta-analysis described above, the authors found that for all outcomes related to recurrence, excisional hemorrhoidectomy was superior to the PPH by an odds ratio of 2.7–3.6, although the proportion of asymptomatic patients was no different between the pro­cedures in this analysis. We also do not have experience in performing repeat stapled hemorrhoidopexy (following an initial PPH) but worry about leaving two staple lines close together with a potentially ischemic area of mucosa between.
Sphincter Damage
The width (size) of the PPH device is 33 mm and the circular anoscope up to 37 mm. Although this is slightly smaller than
Fig. 20.15 Gangrenous hemorrhoids
Table 20.9 Complications of stapled hemorrhoidopexy
Complication Frequency Possible preventive measures Management Acute pain 26–60 % Avoid incorporating muscle Analgesics, sitz baths, tincture of time Chronic pain
and/or urgency (post- PPH syndrome)
Rectal stenosis <21 % Fiber supplementation to avoid constipation-induced
Delayed bleeding from staple line
Recurrence 7.5 % Optimal patient selection, expectation management,
Sphincter damage/ incontinence
Pelvic sepsis Rare Proper technique and patient selection but likely
Rectal perforation
Rectal obstruction
Rectovaginal fi stula
5–31 % Avoid too low stapler placement, avoid
incorporating muscle. Mucosal-submucosal purse- string/staple line should be in distal rectal mucosa not anal canal
staple extrusion with subsequent fi brosis
1–13 % Completion anoscopy with suture ligation of
bleeders or hemostatic agents, i.e ., FloSeal
optimal technique
1 % Gentle serial dilation. Avoid in patients with
borderline continence
unpreventable
Rare All cases involved full-thickness wall rectal excision Resuscitation, broad-spectrum antibiotics, fecal
Rare Ensure proper purse-string suture placement so that
both are cut by the stapler
Rare Ensure anterior purse-string in mucosal-submucosal
and not full thickness. Double-check vagina before fi ring stapler
the size of the transanal endoscopic microsurgical operating
Anti-infl ammatories, calcium channel blockers
Gentle digital rectal dilation without sedation
Assess for unrecognized coagulopathy, exam under anesthesia, suture ligation
Lifestyle modifi cation, rubber band ligation, THD, redo PPH, excisional hemorrhoidectomy?
Kegel exercises, pelvic fl oor retraining, bulking agents, antimotility agents, others as appropriate
Broad-spectrum antibiotics, CT scan, exam under anesthesia +/− laparotomy and fecal diversion
diversion Exam under anesthesia, transanal or endoscopic
purse-strong cutting Large/highly symptomatic: fecal diversion Small/
mildly symptomatic: transvaginal/endorectal advancement fl ap(s)
20 Hemorrhoidal Disease: Postoperative Complications
327
Fig. 20.16 Stapled hemorrhoidopexy specimen demonstrating varying degrees of thickness
proctoscope (40 mm), caution should still be used in those patients with preexisting sphincter injury or fecal inconti­nence. For those without these contraindications, slow, gen­tle, serial dilation from one-fi nger breathe to the size of the device is optimal. The other mechanism by which sphincter damage during PPH may occur is by placing the purse-string suture too deep. When fi red, especially when the stapler is placed too low (i.e., in the anal canal), the staple line may incorporate muscle fi bers. If this occurs, you have to fall back on medical management of bulking and bowel-slowing agents, and again, waiting to see their eventual function.
Too Low Stapler Placement: Post-PPH Syndrome
Proper technique suggests that the resulting staple line should be approximately 2 cm proximal to the apex of the hemorrhoidal bundles. Placing the purse-string and stapler too low will result in inadvertent excision of the hemor­rhoidal tissues. Given their bulkiness, this is likely to result in an asymmetric resection of the mucosal ring that will increase recurrence rate (Fig. 20.16 ). However, low stapler placement may also cause internal sphincter spasm and infl ammation, similar to low anterior syndrome following a proctectomy. This is typically treated with anti-infl ammatory agents per orum or per rectum but in rare cases may require removal of the staples.
Bleeding
Bleeding from the staple line is relatively common after the PPH device is fi red. This can be minimized by holding the
stapler for a minimum of 20 s before fi ring. Post-fi ring care­ful, circumferential anoscopy to assess for bleeding from the staple line is a mandatory part of the procedure. We prefer a placement of hemostatic 3–0 vicryl sutures perpendicular to the staple line as needed to achieve optimal hemostasis. Mongardini et al. reported on 197 PPH procedures in which FloSeal™ was used as a hemostatic adjunct, instead of hemostatic sutures on the suture line, and no major postop­erative bleeding was observed, compared to 1.3 % in other series [
48 ].

Preventing Complications

Key Concept: Like most things, it is often easier to avoid complications than to manage them. Here are some helpful tips we have found regarding hemorrhoid management.
Technical Tips: Excisional Hemorrhoidectomy
Avoid inadvertent excessive excision (cushions vs. anoderm): In order to obtain the optimal exam under anesthesia, we rec­ommend general anesthesia with neuromuscular blockade (paralysis). Similarly a four-quadrant intersphincteric block can aid in optimal exposure (we use a 50-50 mixture of Marcaine and lidocaine). Preemptive perianal skin block with this mixture may decrease postoperative discomfort. However, you must keep in mind that local may distort the normal anatomy, so consider using a marking pen to mark the anoderm to be excised prior to instillation of local anesthetic.
It should always be remembered and taught that the goal of excisional hemorrhoidectomy is to excise the optimal amount of hemorrhoidal cushions to prevent recurrence of the symptoms, while overzealous anodermal excision will invariably result in anal stenosis. When excising several col­umns, you should always leave a minimum of 1–2 cm of anoderm between columns.
Reduce the risk of intraoperative bleeding: In order to reduce the risk of bleeding during an excisional hemorrhoid- ectomy, some surgeons choose to place a ligating/pexying stitch at the apex of the hemorrhoidal bundle and nascent specimen prior to excision to decrease bleeding during excision.
Avoid sphincter injury: You can use large curved Mayo scissors to push the sphincters down against the anorectal wall during excision of the specimen to decrease likelihood of injury to the underlying sphincter.
Optimal analgesia: Several adjuncts exist that can help to reduce postoperative pain.
One includes performing a lateral internal sphincterotomy at the same time as the hemorrhoidectomy [
4955 ]. Data
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S.D. Holubar and D.E. Rivadeneira
from randomized trials are few and have mixed results. In our opinion, especially given long-term outcomes after sphincterotomy for fi ssure with up to 10 % continence alter­nations, it cannot be recommended at present. Chemical sphincterotomy with Botox or calcium channel blockers may reduce pain in the fi rst postoperative week and may be a sea­sonable albeit costly alternative [
Several randomized trials have examined the role of elec­trosurgical devices such as the LigaSure™ or Harmonic Scalpel™ to incrementally improve excisional hemorrhoidec­tomy. A meta-analysis from 2007 showed that although the LigaSure may decrease operative time and blood loss, it does so at increased cost without decrease in postoperative pain [ 20 ]. Another medical device reported to reduce post- hemorrhoidectomy are implantable local infi ltration systems such as the On-Que™ and other pumps such as a subcutane­ous morphine pump [ local availability, and cost all limit widespread adoption.
A recent, exciting development that holds promise in the reduction of post-hemorrhoidectomy pain is liposomal bupi­vacaine. The liposomes slowly dissolve, releasing the local anesthetic over 72 h. To date, several randomized trials of the effect of this medicine in this patient population have been published [ patients, Gorfi ne et al. reported that this injection of 300 mg of liposomal bupivacaine, as compared to placebo, resulted in a statistically signifi cant reduction in opioid use and improved patient satisfaction. In another randomized trial including 100 patients, Haas et al. demonstrated a similar effect on opioid use and also showed a dose-response curve up to 266 mg of the liposomal formula compared with 75 g of non-liposomal bupivacaine. This formulation, which appears effective as shown by these studies, holds promise. Due to its relative infancy, current widespread adoption is limited by the relative lack of literature, as well as its cost.
Prevention of early bleeding: At the conclusion of exci- sional hemorrhoidectomy, some surgeons use an anal pack or anal tampon to push the mucosa against the anorectal wall. This may be as simple as lubricated plain gauze with tie (tampon string) or as fanciful (and costly) as nonadherent dressing such as rolled-up “cigarette” of Telfa TM wrapped in Surgicel® (Ethicon Biosurgery, Cincinnati, OH). Although these measures provide some reassurance to the surgeon, they are likely excessive if increased attention is paid to hemostasis as viewed anoscopically at the end of the case.
Increase the detection of early bleeding: An alternative to anal packing is an anal dam, which keeps the anus open enough to allow blood to egress from the canal so as to allow timely recognition while the patient is still in the recovery room and hopefully before a patient develops hemorrhagic shock. The cut end of the surgeon’s rubber glove, or a piece of Telfa, is placed with one end in the canal and the other outside of the body. This is felt to be critical important by
5860 ]. In a randomized trial of almost 186
57 ]. In general, lack of high-quality data,
56 ].
some surgeons, following the dictum that with a competent (closed) anus, the colorectum can store the entire intravascu­lar volume of blood.
Patient Selection
As mentioned throughout this chapter, patient selection is crucial for optimal outcomes. Optimal treatment recommen­dations start with a thorough examination, ideally in the offi ce with a motorized exam table, a selection of different anoscopes, and high-quality lighting. Patient goals should also be carefully assessed prior to the examination and again prior to leaving. For example, a patient may successfully undergo lifestyle modifi cations and serial rubber band liga­tion for bleeding internal hemorrhoids. On follow-up, the bleeding is treated, but the patient still notices (yet does not complain of) prolapse. Despite the prolapse, from the patient’s perspective, their goals may have been met without additional intervention. On the other hand, if a cirrhotic has chronic bleeding internal hemorrhoids, rubber banding may result in torrential, unstoppable bleeding, so the patient and other care provider expectation of no bleeding may not be reasonable, and simple suture ligation, transjugular intrahe­patic portosystemic shunt (TIPS), or palliation of the anemia with transfusion of blood products may be the safest, most appropriate treatment (Fig. 20.17 ).
Fluid Restriction (Urinary Retention)
According to the American Society of Colorectal Surgeons recommendations, intraoperative fl uid restriction will decrease the likelihood of urinary retention [ 1 , 61 ]. Thus, it is important for you to communicate this to the anesthesia team who may not be aware of these recommendations. Protocols for early recognition prior to discharge need to be established at each surgeon’s operative facility; we recommend manda­tory void >100 cc plus a bladder scan to avoid unnecessary emergency room visits in those in whom it will develop.

Summary Pearls

Managing patients with hemorrhoidal disease will be a fre­quent occurrence for anyone treating patients with colorectal problems. Though diffi cult to summarize everything you will encounter, we leave you with a few fi nal thoughts.
• Complications after treatment for hemorrhoidal disease, including recurrence, are relatively common and in many cases can be avoided by proper patient selection, preop­erative optimization, and intervention tailored to the indi­vidual’s goals and expectations.
20 Hemorrhoidal Disease: Postoperative Complications
329
Fig. 20.17 Algorithmic approach to selection of hemorrhoidal operation
• Technical complications after operative intervention can result in permanent negative impact on patient qual­ity of life. Therefore, it is imperative that you as the surgeon be competent, aware of the technical nuances of the procedures you offer, and familiar with the fre­quency and management of procedural-specifi c complication.

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Fistula-in-Ano

David E. Beck
2 1
Key Points
• Although it seems very basic, correctly identifying the internal and external openings without missing secondary or high blind tracts or creating false pas­sages is the key to minimizing failures and recurrences.
• Imaging studies are typically not required outside of complex and recurrent fi stulae.
• While several methods are used in the surgical man­agement of fi stula-in-ano, they all work on the basic premise of destroying or sealing the internal opening.
• When in doubt, preserve the sphincter muscle complex.

Background

Fistula-in-ano is one of the most common anorectal disor­ders you will encounter. Many of them will be straightfor­ward and heal without any recurrence or functional defi cits. Others will be almost as trying on you as they are debilitating on your patient. It is important that you have a stepwise approach to anal fi stulas and always consider the anatomy of the tract(s), sphincter complex involved, prior history of your patient (e.g., anorectal surgery continence status), and any underlying pathology (e.g., IBD). My goal in this chapter is to provide you with information regarding the diagnosis and
D. E. Beck , MD, FACS, FASCRS Department of Colon and Rectal Surgery , Ochsner Clinic foundation , 1514 Jefferson Highway , New Orleans , LA 70121 , USA e-mail: dbeckmd@aol.com
treatment, and along the way give you some of my thoughts and biases about how I think about this problem.

Pathophysiology

Key Concept: A cryptoglandular origin is the source of ~80 % of all anal fi stulas.
A fi stula-in-ano is an abnormal tract or cavity communicat­ing with the rectum or anal canal by an identifi able internal and external opening. Most fi stulas are thought to arise due to cryptoglandular infection and can be classifi ed as described by Parks and colleagues (Fig. 21.1 and Table 21.1 ) [ 1 ]. Other causes include infections (e.g., HIV), infl ammation (e.g., IBD), neoplasms, and trauma [ 2 ]. While these are fairly straightforward concepts, it is important to remember that approximately 30–50 % of anorectal abscesses will lead to an anal fi stula. When draining an anorectal abscess, you should inform your patient of this fact, to both manage expectations and allow them to follow-up appropriately if this should occur.

Evaluation and Workup

History
Key Concept: Most routine fi stulas you can elicit on history alone. Use the history to tease out those that are more con­cerning for sources other than cryptoglandular.
A patient with a fi stula-in-ano will often recount a history of an abscess that has been drained either surgically or spon­taneously. Patients may complain of drainage, pain with def­ecation, bleeding due to the presence of granulation tissue at either opening, swelling, and/or decrease in pain with drain­age. Additional bowel or systemic symptoms (i.e., abdomi­nal pain, bloody diarrhea, weight loss, immunosuppression) may be present when the fi stula is not cryptoglandular.
S.R. Steele et al. (eds.), Complexities in Colorectal Surgery, DOI 10.1007/978-1-4614-9022-7_21, © Springer Science+Business Media New York 2014
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D.E. Beck
Fig. 21.1 Classifi cation of fi stula-in-ano. ( a ), Intersphincteric. ( b ), Transsphincteric. ( c ), Suprasphincteric. ( d ) Extrasphincteric (With permission from Vasilevsky [
Table 21.1 Classifi cation of fi stula-in-ano
Intersphincteric Simple low tract High blind tract High tract with rectal opening Rectal opening without perineal opening Extrarectal extension Secondary to pelvic disease Transsphincteric Uncomplicated High blind tract Suprasphincteric Uncomplicated High blind tract Extrasphincteric Secondary to anal fi stula Secondary to trauma Secondary to anorectal disease Secondary to pelvic infl ammation
2 ] )
Physical Examination
Key Concept: Although you may not always readily fi nd the internal opening on physical examination, you can often get a feel for the extent of the disease process and exclude other sources of pathology.
The external or secondary opening may be seen as an elevation of granulation tissue discharging pus. This may be elicited on digital rectal examination. In most cases, the internal or primary opening is not apparent. The number of external openings and their location may be helpful in identifying the primary opening. According to Goodsall’s rule (Fig. transversely across the perineum will originate from an internal opening in the posterior midline. An anterior external opening will originate in the nearest crypt. Generally, the greater the distance from the anal margin, the greater the probability of a complicated upward
21.2 ), an opening seen posterior to a line drawn