Profiles and perioperative data of 10 patients who underwent PD with the Shuriken‐shaped umbilicoplasty.
In this study, we demonstrate two new methods for pancreaticoduodenectomy (PD). One method is the mini‐laparotomic PD by Shuriken‐shaped umbilicoplasty with the real‐time moving window‘s method. The other method is the new pancreaticojejunostomy (PJ) by punctured stent slide guiding method (PSSGM). This procedure could be performed by complete mini‐laparotomy under direct vision, and the final major wound is only 2 cm of round navel. PSSGM prevents the difference of caliber between pancreatic anastomosis and the inside out of jejunal mucosa in theory. Ten cases of mini‐lap PD were successfully performed under new PJ anastomosis. The pancreatic leakage (PL) was only one case of ISGPF grade A, and its frequency was 9% (1/11). Our mini‐lap PD by Shuriken‐shaped umbilicoplasty might be a useful way for overcoming the obstacles about safety, complication risk, cosmetic demand, and medical cost compared to laparoscopic PD. Also, our new device of PJ reconstruction by PSSGM might be an easy and useful device for the prevention of PL.
- laparoscopic pancreaticoduodenectomy
- navel surgery
- Shuriken-shaped umbilicoplasty
- minimal invasive surgery
Recently, laparoscopic surgery has been used for pancreas surgery. Laparoscopic pancreatic surgery has gradually expanded to include pancreaticoduodenectomy (PD) [1–3]. However, as the outcomes of feasibility and safety have become better yearly in the laparoscopic pancreaticoduodenectomy (LPD), a superior operative skill must be required. Therefore, LPD remains technically a difficult surgery with high rates of mortality and morbidity for usual HPB surgeons. LPD is a challenging operation for multiple reasons, including but not limited to the following: difficult access and exposure of the pancreas, which is situated in the retroperitoneum; hemorrhage control from major vasculature, a technically demanding reconstruction of the biliary and pancreatic remnants; maintaining oncologic surgical principles; and surgeon fatigue from a long operation requiring intense concentration. Limitations of the laparoscopic approach include the inability to palpate the lesion or surrounding vascular structures. Owing to the limitations of LPD, we reported a new surgical device of hybrid laparoscopic complete uncinatectomy of the pancreas by Shuriken‐shaped umbilicoplasty with the sliding window‘s method  in pursuit of both safety and cosmetic advantages. In this chapter, we would like to demonstrate our modified novel technique of Shuriken‐shaped umbilicoplasty with the real‐time moving sliding window‘s method in pancreas for PD by mini‐laparotomy. Our technique might be used for PD from complete mini‐laparotomy to hybrid laparoscopic operation and be a useful procedure with the advantages of cosmetic, safety, and learning tools to the complete LPD.
The pancreatic fistula is a major obstacle as a complication after pancreatojejunostomy (PJ) in PD would result in intra‐abdominal abscess or bleeding from arterial aneurism. A reconstruction of PJ has been reported; however, the pancreatic leakage (PL) has not disappeared. The cause for PL might be divided into two factors. First is the host‘s factors and second is the surgeon‘s factors (Table 1). The host's factors are their nutrition status, diabetes mellitus, pancreatitis, aging, liver cirrhosis, and so on. Those conditions might influence wound healing, immunocompetence, and susceptibility to infection. The surgeon's factors are technical problems including their surgical skill, surgical instruments, and reconstruction‘s method. In this study, we will also demonstrate the new PJ technique by pancreatic stent slide guiding method (PSSGM).
|Case||Sex||Age||Disease||Real time sliding window‘s method||Operative time||Blood loss||Hospital stay||PL||BL||Other postoperative complications||Preoperative complications|
|7||M||68||PvC||+ Mini‐Lap||482||344||36||Grade A||–||Bleeding of gastric anastomosis||–|
|8||F||70||BDC||+ Mini‐Lap||577||1375||42||–||–||Liver abscess||Cholangitis|
|9||F||75||BDC||+ Mini‐lap||552||1284||90||–||–||Liver abscess||DM|
2. Surgical procedures
2.1. Shuriken‐shaped umbilicoplasty with the sliding window‘s method
The patient was placed in the supine position with legs closed. Hybrid laparoscopic surgery was performed by the hand‐assisted or the direct manipulation with a small open wound by the sliding window‘s method. Under general anesthesia, a Shuriken-shaped umbilical skin incision was made 6 cm horizontally, 4 cm longitudinally and 1.8 cm wide. The intermediate skin between outside and inside skin incision was removed. Subcutaneous tissue around the umbilicus and the upper abdominal subcutaneous region was dissected, and the upper abdominal minilaparotomy, from 8 to 12 cm, was performed (Figures 1 and 2). GelPort was used for the hand‐assisted laparoscopic surgery.
After that, two of Kent retractors for the upper region and two of surgical arms for the lower region are placed at each bilateral side.
2.2. Real‐time moving window‘s method for PD
The three operative fields were divided into the hepatic hilus region, pancreas head region, and SMA region (Figure 3). The four retractors were moved according to each operative region. For each operation of the hepatodudenal and common hepatic arterial regions, Kent retractor was pulled forward to the right or left upper by placing surgical gazes at the right sub‐diaphragmatic space. And then, for the paraduodenal approach of SMA or Treize‘ligament, the right or left surgical arm was pulled to the right lower direction or the left lower direction after loosening the Kent retractor. For the pancreas head region, Kent retractor was pulled toward the middle upper after loosening the surgical arms.
The operative manipulations were done and were the same as those of the usual open PD.
Especially, the processing of IPDA was firstly made by paraduodenal approach under the concept of “artery first” before dealing with SMV.
The hepaticojejunostomy, the pancreaticojejunostomy, and the gastrojejunostomy were done under direct vision without laparoscopic manner. After the reconstruction, three closed drainage tubes were detained in the Winslow foramen, the posterior space of pancreaticojejunostomy, and subcutaneous space, respectively.
2.3. Pancreatojejunostomy by punctured stent slide guiding method (PSSGM)
2.3.1. The cutting and sealing of pancreas stump
A cause for PL is due to insufficient sealing of the pancreas stump. We cut the pancreas by using the SonoSurg or the bipolar forceps near the pancreatic duct. The pancreatic duct is cut by the surgical knife.
2.3.2. Anastomosis of duct to “seromuscular layer”
We consider that the major cause for PL is technical problems at the anastomosis in the PJ. The possible problems of PJ anastomosis are thought to be two reasons. One is a difference of caliber between the jejunal orifice and the pancreatic duct. The other is an inside out of jejunal mucosa in anastomosis of the duct to mucosa (Figure 4). These problems lead to PL and local infection around PJ anastomosis. Sometimes, those infections induce the arterial aneurism and its rupture and bleeding. As a solution, we devised the punctured stent slide guiding method. The first step in this method is a puncture of jejunum by a pancreatic stent adapted to the orifice of the pancreatic duct without any incineration of serosa of jejunum as shown in Figures 5① and 6A. This surgical idea might prevent the difference of anastomotic orifice and not resist the healing of anastomosis because of the none of any destroy of fire by the surgical device. The second step is an anastomosis of the duct to jejunal seromuscular layer without the mucosa. This duct to seromuscular anastomosis might prevent the necrosis of mucosa by the ligating strings. These everting suturing by all around 8–10 needles are made by 6‐0PDS doubly armed suture. Both the small orifice of the pancreatic duct and the jejunum are easily and simply anastamosed by each needle sliding on the pancreatic stent tube. After that, the third step is an anastomosis of the pancreatic parenchymal stump by the jejunal seromuscular layers with the Kakita method, utilizing a full, thick penetrating suture for tight stump adhesion. The last step is a resection of the pancreatic stent with the opposite side for the lost stent. The orifice after resection of stent is closed by suturing.
3. Patients and perioperative data
3.1. PD with Shuriken‐shaped umbilicoplasty
We experienced 10 cases of PD by real‐time moving window‘s method. Mean age was 72.6 ± 4.2 years old. Operative procedures were mentioned as described above. The pancreaticojejunostomy was done by our original stent slide guiding method. The patient‘s profile is demonstrated in Figure 5. Average of operative times was 528 ± 63 min. Average of operative blood was 795 ± 405 ml. Average of hospital stay was 33 ± 21 (17-90). Two patients suffered from liver abscess, and their hospital stay was prolonged by 42 and 90 postoperative days, respectively. There were no cases that had bile leakage. Pancreatic leakage was only one case of grade A by ISGPF classification (Table 1).
3.2. Pancreaticojejunostomy by punctured stent slide guiding method
Ten cases were operated using the Shuriken-shaped umbilicoplasty and one case by the usual open surgery. We divided the PD with PJ reconstruction into three groups from 2004 to 2015 in our center. There were 114 cases of PD with PJ reconstruction operated by the previous HPB surgeons in Group A from 2004 to 2013. There were 24 cases operated by present HPB surgeons from 2014 to 2015. Eleven cases in Group C were operated by the first author using PSSGM from 2014 to 2015. The 13 cases of Group B were operated by other surgeons without PSSGM. The PLs were compared among three groups according to the ISGPF criteria.
4. Changes in amylase level in the sump solution
The amylase level in the two sump solutions was measured (Table 2). The two drains of eight cases were removed within 5 days after operation without PL. The drains of the other two cases were removed 7 days after the operation. The one in two cases had a PL of grade A.
|Levels of amylase in the sump solution of pancreatic anastomotic drain||Levels of amylase in the sump solution of winslow's drain|
|Group||Number||ISGPF grade||Total (%)|
|Grade 0||A(%)||B(%)||C(%)||Grade A–C|
|A (2004–2013)||114||60.5 (69)||5.2 (6)||26.3 (30)||7.9 (9)||39|
4.1. Changes in the frequency of pancreatic leakage compared among the three distinguished periods from 2004 to 2015 in our hospital
Total frequency of PL was 39% in the 114 cases of PJ reconstruction of Group A from 2004 to 2015 (Table 3). Total frequency of PL of Group B and Group C was 31 and 9%, respectively, at the same period from 2014 to 2015. The frequency of grade C PL was 7.9% in Group A. Groups B and C had no grade C PL. Moreover, Group C had no grade B and grade C PL that underwent PSSGM.
In 1994, Gagner and Pomp [5, 6] first introduced LPPPD in an advanced laparoscopic surgical trial in an effort to reduce postoperative morbidity. Since then, however, there have been few reports from centers with experience performing this procedure, and the reported clinical outcomes of LPD have remained unsatisfactory over the last decade [7, 8]. Technical progress in LPD was achieved by several pioneering laparoscopic surgeons, including hand‐assisted LPD [9, 10] as well as laparoscopically assisted [11, 12] and robot‐assisted PD . However, some surgeons have recently reported favorable outcomes [14–17]. LPD has not been accepted as a generalized surgical method for the resection of pancreatic head lesions. LPD includes technically difficult surgeries with high rates for mortality and morbidity.
Most of risky complications are leakages of pancreatic duct anastomosis and hepaticojejunostomy in the PD inspite of open or laparoscopic. Their reconstruction might be very stressful and fatigue for surgeons because of the limitations of laparoscopic approach and long operation.
In our operative procedure, the final main operative abdominal wound by Shuriken‐shaped umbilicoplasty is almost 2 cm round around the navel except the three wounds for drainage tubes in our new device of operation. The length of subcutaneous upper abdominal incision is longer than that of the complete untinatectomy which was reported elsewhere. Although the opening window of abdomen using GelPort is small, the favorable operative window could be exposed by the real‐time sliding window‘s method with two Kent retractors and two of surgical arms.
Otherwise, our techniques could bring their anastomosis under direct vision. Although our clinical research was very small number, the results of the only one case of pancreatic leakage of Grade A in ISGPF might be enough to verify the availability of our device. Moreover, all of surgical manipulations could be completely done under direct vision including ability to palpate the lesion and the vascular reconstructions as well as those of the open PD (OPD).
Therefore, our new device might be same as the OPD at the viewpoint of minimum invasive surgery and same as LPD at the viewpoint of cosmetic merit. However, that might be as same as the OPD at the viewpoint of safety.
In this chapter, we demonstrated the new device of PL by PSSGM. The causes for PL are shown in Table 4. We would consider that the origins of PL are divided into two parts, host's factor and surgeon‘s factor. The major cause for PL of PJ might be surgeon‘s technical problems. The PL from the anastomosis of the PJ and a cut stump of pancreas are the main origins, and we would consider that the difference of caliber of PJ anastomosis and the inside out of the jejunal mucosa are major obstacles. The only puncture by pancreatic stent to jejunum without burns must prevent from both the inside out of the jejunal mucosa and the difference of caliber of PJ anastomosis.The mixture of pancreatic juice and intestinal juice would deteriorate the PL and the local infection after the PL. Because the mixture of jejunal juice and pancreatice juice activate the inactivate pancreatic juice and activate pancreatic juice promote the PL. The above risk might be low in our new device. The other merit of our device is an easy anastomosis by the stent slide guiding method. If the pancreatic duct is small at the soft pancreas, the suture would be easy by handling of the needle using the guide of stent sliding. However, the comparison among three periods was retrospective and the surgeons also were various with the exception of Group C, the PL of Group C was low level in the frequency and the severity. Two major PJ reconstructions of Kakita method and Blumgart‘s technique have been reported [18–21]. Oda et al. reported that the rate of ISGPF grade B+C PF was 29/78 (37.2%) in the Kakita group and 16/78 (20.5%) in the Blumgart group (
|1. DM, age, nutrition, obesity, general condition|
|2. Condition of pancreas|
|Soft pancreas, fibrosis, pancreatitis|
|1. Technical problems|
|a. Type of surgical suture, skill of surgeon, management of stent|
|b. Surgical device of pancreatic resection|
|Dealing of pancreatic stump|
|Bleeding from pancreatic stump,|
|Lack of sealing of pancreatic stump|
|2. Differences of reconstruction method|
Many authors mentioned the necessity of learning periods for LPD. This complex procedure requires a relatively long training period to ensure technical proficiency.
Wang et al.  reported that based on the cumulative sum (CUSUM) and the risk‐adjusted CUSUM analyses, the learning curve for LPD was grouped into three phases: phase I was the initial learning period, phase II represented the technical competence period, and phase III was regarded as the challenging period. There were no significant differences in terms of postoperative complications or the 30‐day mortality among the three phases. More challenging cases were encountered in phase III. To attain technical competence for performing LPD, a minimum of 40 cases are required for laparoscopic surgeons with a degree of laparoscopic experience. Therefore, the acquisition of LPD might be not so easy, especially, in the center with a small amount of PD operations. Our device could be done by complete minilaparotomy so the usual HPB surgery might perform without the long learning period. Because the PJ and the HJ anastomosis could be done under direct vision as well as open surgery.
Of course, according to the learning curve, our operation could change from the complete minilaparotomy to the hybrid laparoscopic procedure or to complete LPD. Our procedure might be useful as a way of learning for LPD.
As other subjects, there is medical cost. Tan et al. reported that the mean total cost was higher in the total LPD (TLPD) group compared to the OPD group. When the total cost was broken down, TLPD was noted to result in significant increases in the cost of both surgery and anesthesia, but a decrease in the cost of admission evaluation. The higher cost of surgery and anesthesia in the TLPD group was due to the required surgical equipment and supplies and longer surgical time. The lower cost of admission evaluation in the TLPD group was due to a shorter hospital stay and reduced requirement for parenteral alimentation. From the thinking of learning cost, the cost of admission evaluation also must not decrease compared with OPD. Our operation could be done without any laparoscopic supplies.
In conclusion, the goal of minimal invasive surgery might be TLPD; however, there are several problems, for example, safety, complications, medical cost, and learning cost. Our PD by Shuriken‐shaped umbilicoplasty with the real‐time moving window‘s method might be a useful way for overcoming the above obstacles. Also, our new device of PJ reconstruction by PSSGM might be an easy and a useful device for preventing PL.
|ISGPF||international study group on pancreatic fistula|
|PSSGM||punctured stent slide guiding method|
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