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298
K.A. Garrett and S.W. Lee
Polyp Retrieval
• For polyp retrieval, an endoscopic Roth net ® (US Endoscopy, Mentor, OH) can be used if the polyp is resected en bloc. For polyps that are resected piecemeal, a trap can be added to the suction device, and the polyp can be suctioned through the scope.

Postoperative Care

For patients that undergo standard snare polypectomy and there are no concerns intraoperatively, these patients may have a very short hospital stay and may even go home the same day as the procedure. Most groups report length of stay between 1 and 2 days, although other large studies report a mean length of stay of 4–8 days [ 9 , 12 , 16 ]. Patients that have a partial- or full-thickness injury or undergo colonoscopic- assisted laparo­scopic wall excision should be monitored in the hospital for observation and to await return of bowel function. These patients should be admitted to the hospital and treated like any patient that has had a laparoscopic abdominal procedure. Patients are encouraged to ambulate early and frequently and use incentive spirometry to avoid postoperative morbidity. Venous thromboembolism (VTE) prophylaxis is used consist­ing of subcutaneous heparin and sequential compression devices. Diet is advanced as tolerated, and once patients have return of bowel function, intravenous fl uids and pain medica­tions are discontinued. Patients will usually follow up within 2 weeks after discharge for review of the fi nal pathology and determination if additional treatment is needed.

Complications

Intraoperative complications can be related to the endoscopic portion of the procedure or to laparoscopic port placement and mobilization.
In a large retrospective study, the risk of colonoscopic
perforation for all comers was less than 1 % [ 18 ]. The benefi t of the laparoscopic and endoscopic combined approach is that any full-thickness injury to the colon from electrocau­tery, barotrauma, or scope trauma can be immediately recog­nized and repaired. Franklin et al. reported a 10 % rate of serosal suture placement [ 16 ]. Our group reported a higher rate of 43 %. However, in all of these patients, there was no evidence of a full-thickness injury, but rather concern that the wall appeared to have a partial-thickness compromise that could easily be prepared at the time [ 9 ]. The other ben- efi t of doing a concomitant colonoscopy is that a leak test can be performed to assess the site of injury and repair.
The risk of laparoscopic complications should be similar
to any other laparoscopic abdominal procedure and poten­tially even less if no mobilization of the colon is required.
There is risk of abdominal wall and intra-abdominal injury with port placement, bowel injury related to grasper trauma, or the use of an energy device and injury to surrounding vis­cera such as the bowel, the ureter, or the gonadal or iliac vessels.
For patients that undergo a successful CELS procedure, postoperative morbidity is low as reported in the literature. Franklin reported a 9 % postoperative complication rate, with all complications being minor and mostly consisting of ileus, atelectasis, and seroma [ rate of 4.2 %, with postoperative complications including urinary retention and wound hematoma [ 7 ].
16 ]. Our group reported an overall

Outcomes

There are few large studies that report on the combined approach of laparoscopy and colonoscopy for polyp removal. The longest follow-up for these patients is a median of 65 months, which is reported by both our group and Franklin’s group [ undergoing CELS is excellent. For patients with benign pol­yps that are successfully resected with a CELS technique, there are variable recurrence rates in the literature. Our group reports a recurrence in fi ve patients (10 %). Four of these patients underwent a repeat colonoscopic polypectomy, and one patient had a subsequent laparoscopic segmental colec­tomy, and all patients had benign pathologies [ 7 ]. Franklin’s group reports no recurrences over a median follow-up of 65 months, but three patients were reoperated on for polyps in different locations [ 16 ].
nosed with a cancer on fi nal pathology that there are potential risks associated with a potential perforated cancer. However, although follow-up is limited in patients that have had evidence of cancer on fi nal pathology and have then gone on to have formal resection, there are no reports of tumor recurrence [ 16 ].
7 , 16 ]. Overall, the long-term outcome of patients
There is concern that with patients that ultimately are diag-

Pearls and Pitfalls

In the preoperative workup of these patients with benign polyps, there should be awareness that there can be discrep­ancy in pathology. It is important to have pathology slides reviewed by pathologists at your own institution to make sure there is consensus. In addition, the colonoscopy report should be reviewed, as well as pictures of the polyp, to ensure that the polyp seems to be acceptable for CELS.
It is important to perform colonoscopy fi rst in the operat­ing room prior to laparoscopic port placement. Intermittently, the polyp, which may have previously been deemed unresectable by a referring gastroenterologist, may actually be amenable to traditional colonoscopic polypectomy alone.
26 Combined Endo-Laparoscopic Surgery (CELS)
299
This combined technique can be technically demanding, and the surgeon must be profi cient in both laparoscopic and endoscopic techniques. For the fi rst several cases, it is useful to have an assistant that is profi cient in both of these tech­niques in order to be successful.
During the CELS procedure, it is important to try and recognize the signs of a potential malignancy. Many times, polyps that have been biopsied or previously had attempts at snaring may be scarred and diffi cult to lift with submucosal injection. These fi ndings must be contrasted with fi ndings of a possible cancerous polyp. These fi ndings include central umbilication, ulceration, vascular pattern on narrow band imaging, and fi rmness. If these fi ndings are present, options are to continue with CELS and perform an intraoperative fro­zen section or to proceed to formal colectomy. We do not feel that it is necessary to perform frozen section on all polyps resected as this can add to the operative time and cost of the case. In our experience, the rate of cancer on polyps that were thought to be benign was only 2 % (1/48). Therefore, frozen section should only be done on patients with suspi­cion of malignancy. In our experience, 12 patients underwent colectomy instead of CELS for suspected malignancy, and only 4 (33 %) of these patients actually had cancer.
7
Although this is a low sensitivity, this may refl ect our overly cautious attempts to avoid performing CELS for potential malignancy.

Conclusion

Combined endo-laparoscopic surgery (CELS) appears to be a safe and effective for the treatment of benign colon polyps and may help to avoid laparoscopic colectomy in most cases.

References

1. Fujishiro M, Goto O, Kakushima N, Kodashima S, Muraki Y,
Omata M. Endoscopic submucosal dissection of stomach neo­plasms after unsuccessful endoscopic resection. Dig Liver Dis. 2007;39(6):566–71.
2. Zhou PH, Yao LQ, Qin XY. Endoscopic submucosal dissection for
colorectal epithelial neoplasm. Surg Endosc. 2009;23(7):1546–51.
3. Franklin Jr ME, Diaz-E JA, Abrego D, Parra-Davila E, Glass
JL. Laparoscopic-assisted colonoscopic polypectomy: the Texas
Endosurgery Institute experience. Dis Colon Rectum. 2000;43(9): 1246–9.
4. Beck DE, Karulf RE. Laparoscopic-assisted full-thickness endo­scopic polypectomy. Dis Colon Rectum. 1993;36(7):693–5.
5. Guller U, Jain N, Hervey S, Purves H, Pietrobon R. Laparoscopic vs open colectomy: outcomes comparison based on large nation­wide databases. Arch Surg. 2003;138(11):1179–86.
6. Ommer A, Limmer J, Mollenberg H, Peitgen K, Albrecht KH, Walz MK. Laparoscopic-assisted colonoscopic polypectomy—indications and results. Zentralbl Chir. 2003;128(3):195–8.
7. Lee SW, Garrett KA, Shin JH, Trencheva K, Sonoda T, Milsom JW. Dynamic article: long-term outcomes of patients undergoing combined endolaparoscopic surgery for benign colon polyps. Dis Colon Rectum. 2013;56(7):869–73.
8. Lee MK, Chen F, Esrailian E, et al. Combined endoscopic and lapa­roscopic surgery may be an alternative to bowel resection for the management of colon polyps not removable by standard colonos­copy. Surg Endosc. 2013;27(6):2082–6.
9. Yan J, Trencheva K, Lee SW, Sonoda T, Shukla P, Milsom JW. Treatment for right colon polyps not removable using standard colonoscopy: combined laparoscopic-colonoscopic approach. Dis Colon Rectum. 2011;54(6):753–8.
10. Wilhelm D, von Delius S, Weber L, et al. Combined laparoscopic­endoscopic resections of colorectal polyps: 10-year experience and follow-up. Surg Endosc. 2009;23(4):688–93.
11. Franklin Jr ME, Leyva-Alvizo A, Abrego-Medina D, et al. Laparoscopically monitored colonoscopic polypectomy: an estab­lished form of endoluminal therapy for colorectal polyps. Surg Endosc. 2007;21(9):1650–3.
12. Winter H, Lang RA, Spelsberg FW, Jauch KW, Huttl TP. Laparoscopic colonoscopic rendezvous procedures for the treatment of polyps and early stage carcinomas of the colon. Int J Colorectal Dis. 2007;22(11):1377–81.
13. Feussner H, Wilhelm D, Dotzel V, Papagoras D, Frimberger E. Combined endoluminal and endocavitary approaches to colonic lesions. Surg Technol Int. 2003;11:97–101.
14. Mal F, Perniceni T, Levard H, Boudet MJ, Levy P, Gayet B. Colonic polyps considered unresectable by endoscopy. removal by combi­nations of laparoscopy and endoscopy in 65 patients. Gastroenterol Clin Biol. 1998;22(4):425–30.
15. Le Picard P, Vacher B, Pouliquen X. Laparoscopy-assisted colonic polypectomy or how to be helped by laparoscopy to prevent colec­tomy in benign colonic polyps considered to be unresectable by colonoscopy. Ann Chir. 1997;51(9):986–9.
16. Franklin Jr ME, Portillo G. Laparoscopic monitored colonoscopic polypectomy: long-term follow-up. World J Surg. 2009;33(6): 1306–9.
17. Nakajima K, Lee SW, Sonoda T, Milsom JW. Intraoperative carbon dioxide colonoscopy: a safe insuffl ation alternative for locating colonic lesions during laparoscopic surgery. Surg Endosc. 2005; 19(3):321–5.
18. Hamdani U, Naeem R, Haider F, et al. Risk factors for colonoscopic perforation: a population-based study of 80118 cases. World J Gastro­enterol. 2013;19(23):3596–601.
P a r t V
Special Situations

Emergent Laparoscopic Colorectal Surgery

Rodrigo Pedraza and Eric M. Haas
K e y P o i n t s
• Laparoscopic colorectal surgery is both safe and feasible in many emergent cases. Proper patient selection is cru­cial to for optimal outcomes.
• Port placement is challenging, as the left upper quadrant is typically used for access however, if there is any ques­tion of safety, the right upper quadrant may be used as the fi rst point of access, taking care to avoid liver injury.
• Optical trocars are preferred to gain abdominal access.
• For colonoscopic perforations, laparoscopic procedures range from primary single-layer repair to segmental resec­tion—with or without ostomy creation.
• For perforated diverticulitis, emergent interventions range from laparoscopic lavage to resection with diversion, depending on the case.
• Small bowel obstruction are ideal emergent laparoscopic cases, since the majority require only a lysis of adhesions with no bowel resection.
• Managing malignant obstructions laparoscopically, can be fraught with major morbidity and intraoperative com­plications intervention is often limited to proximal diver­sion and distal decompression.
27

Introduction

Over the past two decades, laparoscopic colorectal surgery has gained acceptance and rates of adoption are increasing with proven clinical advantages. Recent reports demon­strate nearly 45 % of elective colectomies are performed laparoscopically [ 13 ]; however, emergent laparoscopic colorectal surgery is less common. Current use in the emer­gent setting is be than 10 %, refl ecting the complexity and challenges even in expert hands.
The ability to use laparoscopy for colorectal emergencies depends on both patient and surgeon factors. The most com­mon utilizations include acute diverticulitis and malignant obstruction. In addition, emergent laparoscopy for colono­scopic perforations has also been advocated [ 4 ]. However, each case is individualized to determine the safety, risk, and benefi ts for laparoscopy compared with open laparotomy. The ultimate success lies in proper patient selection.
In this chapter, we address the trends in utilization, indi­cations, technical considerations, and pitfalls of emergent laparoscopic colorectal resection. The descriptions are based on generalities in the urgent setting; specifi c presentations may require alternative approaches.

Advantages and Disadvantages of Emergent Laparoscopic Colorectal Surgery

The principles of laparoscopic colorectal surgery can be
Electronic supplementary material: Supplementary material is available in the online version of this chapter at Videos can also be accessed at
978-1-4939-1580-4
R. Pedraza , M.D. • E. M. Haas , M.D., F.A.C.S., F.A.S.C.R.S. (*) Division of Minimally Invasive Colon and Rectal Surgery, Department of Surgery , The University of Texas Medical School at Houston , 7900 Fannin Street, Suite 2700 , Houston , TX 77030 , USA
ehaas@houstoncolon.com
e-mail:
H.M. Ross et al. (eds.), Minimally Invasive Approaches to Colon and Rectal Disease: Technique and Best Practices, DOI 10.1007/978-1-4939-1581-1_27, © Springer Science+Business Media New York 2015
.
10.1007/978-1-4939-1581-1_27 .
http://www.springerimages.com/videos/
employed in the emergency setting. The absolute contraindi­cations for laparoscopy include an unstable patient who can­not tolerate pneumoperitoneum, inability to safely access the abdomen, and insuffi cient laparoscopic experience.
Despite its challenges, laparoscopic colorectal surgery has many advantages in the emergent context. With initial laparoscopic intervention, the surgeon is able to thoroughly evaluate the peritoneal cavity and establish the most appro­priate intervention without committing the patient to a large
303
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R. Pedraza and E.M. Haas
incision. Often the pathology can be addressed maintaining a laparoscopic approach. Even if the condition requires an open incision, the laparoscopic exploration affords accurate identifi cation of the pathology, leading to a better localiza­tion, smaller incisions, less subsequent pain, less postopera­tive complications, and faster recovery. In some cases, the benefi ts of a minimally invasive approach can be salvaged when conversion is required by utilizing hand-assisted lapa­roscopic surgery.
In the emergent setting, avoiding open laparotomy has many advantages. First, large incisions may be diffi cult to close, with a risk of abdominal compartment syndrome. The small incision size also has advantages in this patient population, where immunosuppression, sepsis, or shock are common and can jeopardizing healing and wound integrity. Laparoscopy lowers the risk of wound complications (e.g., dehiscence, evisceration, and infection), q major source of postoperative morbidity and mortality. Moreover, wound complications may result in hernia formation, which ultimately require further surgery. Consequently, wound complications result in signifi cant increases in hospital resource utilization and cost.
Despite the advantages of laparoscopic emergent colorec­tal intervention, there are several limitations. Safe abdominal entry may be compromised, risking injury to bowel, solid organs, and vascular structures. This may turn an already dif­fi cult scenario into a disastrous one. We recommend exten­sive experience with various laparoscopic entry techniques, especially direct visualization with optical trocars, such as with the OptiView
®
(Ethicon Endo- Surgery, Cincinnati, OH)
and Visiport™ Plus (Covidien, Mansfi eld, MA, USA).
Another important consideration is the hemodynamic instability that can result from decreased venous return and increased peripheral vascular resistance after establishing pneumoperitoneum. The surgeon and anesthesiologist must communicate about the patient’s condition; release of pneu­moperitoneum facilitates prompt recovery of hemodynamic parameters and may allow fi nishing with through a the mini­mally invasive approach.
Additional factors hampering the utilization of laparos­copy in emergent colorectal surgery include the relative inability to place the patient in extreme positions as well as the lack of available instrumentation and trained staff during non-elective procedure times.

Approach and Abdominal Entry

Consideration to the minimally invasive technique to gain safe entry is crucial. Emergency patients often present with extreme abdominal distension and rigid abdomens, and cau­tion must be taken during entry. Such presentations may deter from considering laparoscopic intervention; however, after anesthesia induction and ensuing relaxation of the
abdominal wall muscles, laparoscopic approach may be very reasonable. Once abdominal entry is accomplished, the placement of the remaining laparoscopic ports may remain challenging, since in severe infl ammatory cases, the omen­tum is friable and tends to adhere to the peritoneum (Video 27.1 ). We typically utilize either conventional multi­port laparoscopy or hand-assisted laparoscopic surgery. The abdominal entry is commonly safely achieved through a port placed in the left upper quadrant along the costal margin (Fig.
27.1 ). Alternatively, when access to the left upper quad-
rant is unsafe, access through the right upper quadrant may be accomplished inferior to the costal margin to avoid liver injury. We favor direct visualization with an optical trocar for abdominal entry, as it provides a safer approach when com­pared with blind access. This approach is also advantageous for patients with prior abdominal surgery or when the source or extent of pathology is unknown. An alternative is hand­assisted or single-incision laparoscopic surgery, though the abdominal laparotomy entry may still be diffi cult. These are most appropriate when it is safer to enter the abdomen through a direct mini-laparotomy incision.

Indications

Colorectal Perforation
Acute Colonoscopic Perforation
Laparoscopic intervention can be a suitable approach for both acute and delayed colonoscopic perforations. The procedure depends on the degree and cause of perforation, timing fol­lowing the event, degree of peritoneal contamination, and overall clinical condition of the patient. Nearly all cases can be managed laparoscopically, whether primarily repairing the perforation or resecting with or without ostomy creation.
Procedure Steps
• Abdominal entry: left upper quadrant port placement
under direct visualization.
• Exploration: the abdominal and pelvic cavities are explored
to assess the location, extent of injury, and presence of fl uid or fecal contamination. If fecal contamination is encountered, conversion to hand-assisted laparoscopic sur­gery or laparotomy for lavage, bowel resection, and fecal diversion is recommended. Fecal washout cannot often be adequately performed with pure laparoscopic techniques. However, if minimal contamination is recognized, the bowel injury can often be primarily repaired. The entirety of the large bowel is examined to identify the perforation. Intraoperative colonoscopic assistance utilizing carbon dioxide may be required to aid visualization of the perfora­tion. Once identifi ed, proximal bowel clamping is per­formed to avoid further contamination.
27 Emergent Laparoscopic Colorectal Surgery
305
Fig. 27.1 Port placement alternatives for emergent colorectal surgery
Fig. 27.2 Intraoperative view of a colonic perforation following colonoscopy ( arrows ). The perforation was successfully repaired with single-
layer primary colorrhaphy
• Laparoscopic management alternatives: (a) Laparoscopic colorrhaphy (Video 27.2 ): the perfora-
tion borders are defi ned and debrided if devitalized tis­sue is encountered. The repair is achieved with a one-layer colorrhaphy with absorbable suture (Fig.
27.2 ). The use of multiple layer colorrhaphy may
potentially result in lumen narrowing, especially in the sigmoid colon. Following the repair, an air insuffl ation
test and direct intraluminal visualization of the perfo­ration site should be performed to confi rm the integrity of the repair. Injuries extending into the mesentery may be more challenging to repair, and care must be taken to identify the entire extent of the perforation. The borders of the mesentery, which often bleed, may obscure the view and lead to failure to recognize and address the entire extent of the perforation.
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R. Pedraza and E.M. Haas
(b) Segmental resection: after visualizing the perforation,
if primary repair is not appropriate, laparoscopic seg­mental colectomy may be performed with or without ostomy creation. The same principles of laparoscopy in the elective setting are followed and often a medial­to-lateral approach is favored to avoid the infl amed bowel with associated adhesions and friable tissue.
(c) Bowel diversion: in extreme cases, proximal diversion
with colonic lavage may be a temporary measure. Concomitant diversion is also considered following (a) or (b) above, under the discretion and judgment of the surgeon at the time of the operation.
Acute Perforated Diverticulitis
The management of acute perforated diverticulitis varies depending on the clinical presentation of the patient and must be approached on an individual basis. Those who require emergent intervention typically present with free per­foration, with an intra-abdominal abscess and/or peritonitis. Laparoscopic surgery in this setting can be both diagnostic and therapeutic. The therapeutic measures can include drain­age of abscesses, lavage, primary closure of perforation, resection, and/or diversion. Although, it has been generally agreed that the presence of fecal peritonitis requires an open lavage, we have been successful using hand-assisted tech­nique to effectively evacuate the contamination while main­taining a minimally invasive platform.
Procedure Steps
• Abdominal entry: left upper quadrant optical trocar port placement under direct visualization.
• Abdominopelvic exploration: often, the omentum is infl amed and adhered to the peritoneal lining and pelvis requiring mobilization to explore the abdomen. The peri­toneal cavity is then thoroughly examined to evaluate the nature of the contamination. For patients with Hinchey 3 (purulent peritonitis), we perform laparoscopic lavage with or without over-sewing the bowel wall with place­ment of drains through the port sites. It is important to evaluate for inter-loop abscesses, which may be a case for treatment failure if not identifi ed and adequately drained during the procedure. It is also important to locate the perforation site itself, as an occult abscess may be present at or adjacent to this area, which is often shielded by infl amed tissue (Video 27.3 ). For those pre­senting with Hinchey 4 (fecal peritonitis), we typically perform hand- assisted laparoscopic technique, which allows evacuation of the fecal content as well as sigmoid resection with colostomy. A 5–7 cm umbilical or Pfannenstiel incision can be used to place the hand assist device. However, if this technique does not afford com­plete evacuations of the fecal contents, an open laparot­omy is required.
• Lavage: it is necessary to lavage all four quadrants includ­ing perihepatic, perisplenic, right and left gutters, and pelvis (Video 27.3 ). Often occult fl uid collections are identifi ed and attended to in this process. Although no standard volume of irrigation has been reported, we rec­ommend lavage until the fl uid return is clear. The laparo­scopic lavage is an excellent device to episode jet irrigation and allows litters of heated fl uid to be utilized in an expeditious fashion.
• Management of perforation site: the diverticular perfora­tion is typically walled off; however, gentle teasing of the tissues around the perforation should be performed, as occult abscesses may lie around the perforation. In the case that the diseased sigmoid is densely adhered, aggres­sive mobilization should be avoided, since this may result in an uncontained perforation. If perforation site is visual­ized, some advocate over-sewing the perforation or placing a tissue patch with adjacent epiploica or omen­tum. There is, however, no consensus and these various maneuvers all warrant consideration on an individual basis. The fallback “conservative” approach, however, typically involves resection of the diseased segment.
• Bowel diversion: if diversion is considered, laparoscopic loop ileostomy or colostomy may be performed depending on the clinical presentation of the patient. The laparoscopic technique is accomplished in a conventional fashion (Chap. 15 ). In either case, if diversion is performed without bowel resection, on-table lavage of the distal segment should be performed to clear the intraluminal fecal content.
• Laparoscopic resection: in some cases segmental colectomy may be warranted during the emergent presentation. In such cases, a laparoscopic sigmoid colectomy is performed utilizing a medial-to-lateral approach (Chap. 6 /Chap. 7 ) to afford early identifi cation and preservation of the critical vascular structures and the left ureter. Placement of ureteral stents and hand-assisted techniques should all be entertained in this scenario.
Postoperative Anastomotic Perforation
Anastomotic perforation may manifest with peri- anastomotic abscess and purulent or fecal peritonitis. An isolated abscess can often be managed with image-guided drainage, whereas peritonitis or the presence of multiple abscesses may require laparoscopic lavage and further interventions. Although such perforations are typically approached with open surgery, laparoscopic reoperation is a safe and feasible alternative for those with technical expertise [ 5 ].
Procedure Steps
• Abdominal entry: left upper quadrant port placement under direct visualization.
• Exploration: as with any type of perforation, the entirety of the peritoneal cavity is explored. It is common to
27 Emergent Laparoscopic Colorectal Surgery
307
experience a hostile intra-abdominal environment with infl amed and adhered omentum and mesentery.
• Lavage: thorough peritoneal washout is performed to clear out the contamination.
• Anastomotic takedown and diversion: anastomotic resec­tion should be contemplated in all cases with proximal diversion. In cases in which the anastomosis is not acces­sible for resection—such as those deep in the pelvis— diversion alone must be accompanied with on-table lavage.
Bowel Obstruction
Postoperative Small Bowel Obstruction
Small bowel obstruction is the ideal scenario for laparo­scopic intervention. Since the majority of cases do not require bowel resection, a sizable incision of any length is usually not required. The general principles of management of bowel obstruction are followed including gastrointestinal decompression and fl uid/electrolyte replacement before operative intervention. Patients with small bowel obstruction may seem severely distended on clinical exam, causing many surgeons to abort the laparoscopic approach; however, upon induction of anesthesia, the distention diminishes signifi ­cantly, allowing safe laparoscopic entry.
Procedure Steps (Video 27.4 )
• Abdominal entry: left upper quadrant access with an opti­cal trocar. If the patient has prior scars in this region, right upper quadrant can be used. Once entered, a second trocar is placed at any location in which the laparoscopic visual­ization permits. Often, placement of the second trocar is the most diffi cult. Once 2 trocars are placed, lysis of adhe­sions can be initiated allowing for multiple ports. If one cannot safely gain entry in this fashion, a hand port can be placed through a midline infraumbilical incision. Hand­assisted laparoscopic surgery, however, is less useful in small bowel obstruction due to the loss of abdominal domain from the distended bowel.
• Exploration: Abdominal and pelvic exploration is per­formed to identify the etiology of the obstruction.
• Resection: if the case warrants segmental resection, such as in severe strangulation with bowel infarction, the affected segment is mobilized and extracorporealized through a wound protector (Fig. 27.3 ). Resection and pri- mary anastomosis can then readily be achieved extracorporeally.
Malignant Obstruction
Malignant obstruction encountered in the emergent setting typically involves the left colon, and the disease is usually locally advanced. It is also commonly associated with massi-
Fig. 27.3 Gangrenous bowel from bowel obstruction
vely dilated and fragile proximal colonic dilation. In this setting, primary resection can be fraught with major morbid­ity and intraoperative complications. Therefore, attempts at nonoperative intervention, such as intraluminal stenting for decompression should be strongly considered before com­mitting to surgical intervention. Laparoscopic intervention is often limited to creation of proximal diversion to decom­press the obstruction and allow resuscitation and recovery. In addition, this will allow the size mismatch to resolve that frequently would prevent creation of an anasto mosis in the acute setting. Therefore, distal decompression is required with either loop colostomy or end colostomy with mucus fi stula.
Procedure Steps
• Abdominal entry: laparoscopic abdominal entry is chal­lenging in patients with bowel obstruction secondary to abdominal distention, with the risk for perforation especially high during laparoscopic access. For multiport approach, left or right upper quadrant access is preferred, depending on the location of the disease. For cases requir­ing ostomy alone, a single-incision laparoscopic surgery with the single-access port placed at the proposed ostomy site is another option. In cases in which resection is contemplated, hand-assisted laparoscopic surgery is the preferred approach in our institution. This approach affords safe abdominal entry and domain allowing for adherence to the principles of an oncologic resection. The incision depends on the location of the tumor: for right-sided and mid transverse colon tumors, a midline mini-laparotomy
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R. Pedraza and E.M. Haas
incision is made, whereas for left-sided tumors, a Pfannenstiel incision is preferred.
• Bowel decompression: in cases in which there is severe distention and an ostomy is necessary, one can extracorpo­realize the bowel, perform an enterotomy for decompres­sion, and utilize this segment for further ostomy creation. Once decompressed, it is often possible to perform the resection while maintaining a minimally invasive platform, typically utilizing hand-assisted laparoscopic surgery.
• Segmental resection: a conventional laparoscopic tech­nique for segmental resection in a medial-to-lateral fashion with oncologic principles is performed (Chaps.
4 7 ). Even
if laparotomy is required, we favor performing some por­tions of the procedure (e.g., splenic and hepatic fl exure takedown) laparoscopically to minimize the incision length.

Pearls and Pitfalls

• Know your limitations and choose your patients wisely. Wasting time with a minimally invasive approach in a septic patient may result in more risk and worse outcomes than open laparotomy.
• Mobilization of a perforated diverticulum may identify occult abscesses, but avoid the urge to mobilize densely adhered bowel, as this may result in additional bowel injury and the need for resection.
• Gravity is your friend to help with visualization and keeping the small bowel out of the way. However, as you may encounter infl amed bowel, dilated bowel, or intra-
abdominal stool or purulence), have additional sponges on hand to keep the fi eld of view “clean.”
• The omentum is often adherent and restricts visibility; the adhesions must be released, especially those tethering the omentum to the pelvic structures. The omentum is mobilized caudally and fl ipped over the transverse colon for optimal exposure.
• The laparoscopic irrigator is essential, as it provides jet irrigation in an expeditious fashion. Irrigation is required in the perisplenic and perihepatic areas as well as the gut­ters and pelvis to help minimize risk of postoperative abscesses.

References

1. Haas EM PR, Ragupathi M, Carman R, Nieto J. Is laparoscopic colectomy a clinically and economically favorable approach in the modern health care environment: results from a cohort of 56,000 patients. Abstract S12 The American Society of Colon and Rectal Surgeons annual meeting; 2013.
2. Delaney CP, Chang E, Senagore AJ, Broder M. Clinical outcomes and resource utilization associated with laparoscopic and open colectomy using a large national database. Ann Surg. 2008;247:819–24.
3. Fox J, Gross CP, Longo W, Reddy V. Laparoscopic colectomy for the treatment of cancer has been widely adopted in the United States. Dis Colon Rectum. 2012;55:501–8.
4. Haas EM, Pedraza R, Ragupathi M, Mahmood A, Bartley PT. Laparoscopic primary colorrhaphy for acute iatrogenic perfora­tions during colonoscopy. Minim Invasive Surg. 2013;2013:823506.
5. Haas EM PR, Faraj C, Ragupathi M, Pickron TB. Reoperative mini­mally invasive surgery for the management of colorectal surgical complications. Abstract Society of American Gastrointestinal and Endoscopic Surgeons; 2013.

Laparoscopy in the Elderly Patient

Joshua I. S. Bleier and Brian R. Kann
28

K e y P o i n t s

• Assessment of the elderly patient is based on physiologic age rather than chronologic age.
• Preoperative assessment is based on a careful history and physical examination aimed at determination of high-risk comorbidities.
• Preoperative testing is based on functional assessment and presence of known comorbidities.
• Laparoscopic colectomy in the elderly is increasing com­mensurate with the overall increase in laparoscopic colorectal surgery across all ages.
• Laparoscopic colectomy in the elderly seems to yield similar benefi ts when using an enhanced recovery proto­col as seen in younger patients.
• Pneumoperitoneum induces myriad physiologic changes that may have more signifi cant effects in the elderly with comorbid conditions.

Introduction

Aging is, of course, defi ned chronologically; however, subjectively, physiologically, and medically, it is more often a function of “how old you feel.”
To a large degree, management of colorectal issues,
whether benign or malignant, is pathology driven. In most instances, colon cancers that are resectable should be resected,
J. I. S. Bleier , M.D., F.A.C.S., F.A.S.C.R.S. (*) Division of Colon and Rectal Surgery, Pennsylvania Hospital , University of Pennsylvania , 800 Walnut St. 20th Floor , Philadelphia , PA 19106 , USA
joshua.bleier@uphs.upenn.edu
e-mail: B. R. Kann , M.D., F.A.C.S., F.A.S.C.R.S.
Division of Colon and Rectal Surgery, Pennsylvania Hospital , University of Pennsylvania , 51 N. 39th St Suite W-266 , Philadelphia , PA 19104 , USA
brian.kann@uphs.upenn.edu
e-mail:
metastatic disease is an indication for adjuvant therapy, mul­tiple recurrent attacks of diverticulitis indicate resection, and low rectal cancers that don’t involve the sphincters may be treated by sphincter-sparing operations, including colo-anal anastomoses. However, the wise surgeon knows that indica­tions are only part of the decision process. Pathology alone may provide the indication for surgery, but not necessarily the decision for it. Patient factors must be taken into consid- eration. Every assessment of the potential surgical patient takes into account fi tness for surgery, as well as the assess­ment of being able to tolerate the outcome. But where does age play into this equation? Age is a nonspecifi c factor that may provide predictive information about how well a patient will tolerate a procedure. In general, the older the patient, the more comorbidities, the higher the risk for healing prob­lems, the worse the baseline continence and sphincter func­tion, and the higher the risk for concomitant cardiovascular disease. Chronologic age is indisputable, but physiologic age is variable. Consider the unfortunate condition of proge­ria, in which children succumb to the physiologic maladies of advanced age such as heart attack, stroke, and atheroscle­rotic disease—and rarely live past the age of 13—to the 100-year-old man who completed a marathon in Toronto in 2011! The concept of physiologic age truly determines the assessment of the elderly patient. Determination of the physio­logic age of the patient is an amalgam of all of the physiologic parameters that will be affected by the operation and its recovery. Prior dogma dictating age as a relative contraindi­cation to surgery has been replaced by determination of fi tness. Advances in perioperative management have dem­onstrated that mere chronologic age does not directly determine fi tness and the ability to recover from surgery. Rather, it merely informs us of the increased possible risks, while overall fi tness for intervention is determined by factors that are projected to be affected by the surgery. The use of laparoscopic surgery has further redefi ned risks and must be incorporated into our decision-making pro­cesses. This chapter will deal with these issues and the fac­tors that affect them.
H.M. Ross et al. (eds.), Minimally Invasive Approaches to Colon and Rectal Disease: Technique and Best Practices, DOI 10.1007/978-1-4939-1581-1_28, © Springer Science+Business Media New York 2015
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