Добавил:
kiopkiopkiop18@yandex.ru t.me/Prokururor I Вовсе не секретарь, но почту проверяю Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:

Ординатура / Хирургия / @xirurgi_2025 / @xirurgi_2025 - 679 - файл

.pdf
Скачиваний:
0
Добавлен:
29.08.2026
Размер:
17 Мб
Скачать
Robotic-assisted Partial
https://t.me/medicina_free
Splenectomy
ZhigangGao andYuebinZhang
14
14.1 Introduction
In recent years, with research progress on spleen immune function, an increasing number of schol­ars have begun to pay attention to the immune function of the spleen, especially in teenagers and children, and the requirements for spleen preserving surgery in the clinic are increasingly high. Compared with total splenectomy, partial splenectomy has the advantage of avoiding the risk of infection and thrombosis after total sple­nectomy; and the disadvantage is increased risk of perioperative bleeding. The anatomical opera­tion of partial splenectomy is more complicated, and intraoperative bleeding easily affects the operation, so the technical and experience requirements of the operator are higher.
Successful laparoscopic partial splenectomy (LPS) was rst reported by Seshadri etal. in 2000 [1, 2]. As of December 2020, there were no reports on robotic partial splenectomy (RPS) worldwide.
The splenic artery can be branched off into the spleen step by step. According to the different anat­omy of splenic artery branches, they can be divided
into centralized type and dispersed type. The con­centrated type accounts for about 30% and is divided into two branches at 0.6–2cm away from the hilum of the spleen, namely the superior and inferior terminal branches. The main trunk of this type is relatively long, and the branches are rela­tively short. The dispersed type accounts for about 70%. The splenic artery divides into superior and inferior splenic arteries and superior and inferior splenic terminal arteries at 2.1–6.0 cm from the hilum of the spleen. In this type, the main trunk is relatively short and the branches are long. The blood supply in the spleen is segmentally distrib­uted by the splenic terminal artery with little cross supply [3], which provides the anatomical basis for partial splenectomy. With the continuous updates and progress of medical instruments, the ability of ne anatomy and wound hemostasis have been greatly enhanced, which also provides technical support for partial splenectomy [4].
14.2 Indications andContraindications
Supplementary Information The online version con­tains supplementary material available at https://doi.org/
10.1007/978- 981- 19- 9693- 1_14.
Z. Gao (*) · Y. Zhang Department of General Surgery, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China e-mail: ebwk@zju.edu.cn; pwzyb@zju.edu.cn
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023 Q. Shu (ed.), Pediatric Robotic Surgery, https://doi.org/10.1007/978-981-19-9693-1_14
With the continuous improvement of minimally invasive technology and the application of advanced equipment and instruments, robot- assisted surgery systems can provide a bet­ter eld of vision than traditional laparoscopy, more detailed anatomical operations, and avoid or reduce the probability of conversion to open surgery caused by massive bleeding.
95
96
https://t.me/medicina_free
Z. Gao and Y. Zhang
14.2.1 Indications
Partial splenectomy is suitable for local benign tumors of the spleen, especially in cases where the tumor is located at the upper or lower pole of the spleen [24].
14.2.2 Contraindications
(a) Poor general condition, poor function of
heart and lung and other important organs, intolerant to pneumoperitoneum.
(b) Hematological or other systemic diseases
requiring total splenectomy.
(c) A history of severe abdominal trauma or sur-
gery with serious adhesion in the surgical area.
(d) Severe splenic trauma or splenic laceration,
with large blood loss and unstable vital signs.
14.3 Preoperative Preparation
In addition to the routine understanding of the patient’s general condition, the size of the spleen, and the relationship between the location of the tumor and pancreas, routine enhanced CT exami­nation is also required to understand the course of the splenic blood vessels, the location of the tumor in the spleen and its corresponding supply­ing blood vessels. A detailed plan was made to determine the extent of the tumor resection and the preservation of the upper or lower pole of the spleen.
1. Compared with total splenectomy, partial sple­nectomy has restrictions on the age of the patients, but the operation is more difcult and the risk of bleeding is higher. Therefore, a comprehensive evaluation of the patients’ gen­eral conditions and their tolerance to the oper­ation should be conducted before surgery.
2. Perfect preoperative imaging examination: ultrasound and enhanced CT examination were performed to understand the size of the spleen, the position of the splenic mass in the
spleen and the range of the spleen to be removed. Individual surgical plans were for­mulated to fully evaluate the possible risks and take appropriate emergency measures.
3. Preoperative nutritional support to correct malnutrition. Severe anemia can be corrected by blood transfusion before surgery.
4. Routine preoperative preparation: preopera­tive fasting of semi-uid for 6hours, preop­erative water fornication for 2 hours, skin preparation, gastrointestinal decompression, catheterization, preoperative sterilization, blood preparation, and correction of severe anemia and water and electrolyte disorders.
5. Surgical instruments: Select the matching operating instruments according to the size of the child, and routinely provide ultrasonic knife or LigaSure. Due to the risk of massive intraoperative bleeding, an autologous blood transfusion device is recommended in qualied units.
14.4 Position andDocking
1. Surgical position
In the supine position, the head is tilted 30° high and the feet are tilted 30–45° to the right side to facilitate the exposure of the operative eld [5].
2. Layout of the operation hole (Fig.14.1) (a) The observation hole (No. 2 arm) is
located in the umbilical cord. If the giant spleen crosses the mid-umbilical line, the puncture hole can be appropriately moved to the right;
(b) Operating hole 1 (No. 1 arm) between the
midline of the clavicle of the right upper abdomen and the linea alba (adjusted according to the size of the child and the condition of the spleen);
(c) Operating hole 2 (No. 3 arm) left abdomi-
nal axillary front horizontal;
(d) The auxiliary operation hole (assistant
hole) is located behind the midpoint of the connection between the observation hole and operation hole 2;
14 Robotic-assisted Partial Splenectomy
https://t.me/medicina_free
Fig. 14.1 Position of the Troca
(e) The spare operation hole (No. 4 arm) can
be used if the operation is difcult because it is not used routinely. Generally, the spare operation hole can be located under the xiphoid process or at the level of the midline of the left abdominal axillary;
14.5 Surgical Procedures
1. The surgical position The selection of trocar was prepared
puncture points should be adjusted according to the position and size of the spleen. In prin­ciple, the distance between the operating area and the trocar should be reasonable (4–8cm), and it is advisable that each oper­ating instrument should not interfere with each other [6].
2. Routine disinfection towel laying, surgical
nurse to prepare the robot operating arm ster­ile bag.
97
3. Establishment of pneumoperitoneum and placement of trocar: The center of umbilical ring was cut 8mm longitudinally, and pneu­moperitoneum was established by needle puncture (pressure 6–12mmHg) or the rst 8mm trocar was placed through the primary endoscope under direct vision. The second 8mm cannula was placed at the front of the left abdominal axillary line, and its position was positioned according to the lower posi­tion of the spleen. The operation distance was sufcient, and it was used as the main opera­tion hole for inserting ultrasonic knife, bipolar electrocoagulation, electrocoagulation hook or needle holder, etc. A third 8mm cannula was placed in the right middle and upper abdomen, and a dissector or operating forceps was inserted. A fourth 5 mm cannula was placed behind the midpoint of the connection between the umbilical primary mirror and the left ventral operating hole to serve as an aux­iliary operating hole for operations such as traction exposure, attraction, ultrasonic knife, hemo-lock, needle, and thread entry and exit.
4. Spleen management: The surgical plan was determined according to the location and range of the spleen to be removed.
Subtotal splenectomy is the removal of 70–80% of the spleen and the retention of 20–30%. The upper pole vessels of spleen can be preserved by short gastric vessels and spleen-stomach ligaments. Alternatively the blood supply of the residual spleen in the lower pole of the spleen can be preserved by using the splenic omentum vessels, and the spleen- colon ligament (Fig.14.2a).
Superior pole splenectomy is used to remove benign masses localized to the upper pole of the spleen, preserving the lower part and middle part of the spleen. The short gas­tric vessels and the ligaments of the spleen and stomach should be dissected to expose the splenic artery of the splenic secondary ves­sels. When the branches of the splenic artery are concentrated, the splenic artery of the splenic pole should be attached to the spleen. Ligation should be performed particularly for avoiding bleeding. After ligation of the short
98
ab
cd
https://t.me/medicina_free
Z. Gao and Y. Zhang
Fig. 14.2 (a) Preserving the lower pole of the spleen; (b) Ligation of the splenic superior pole artery; (c) The ischemic line of the upper pole of the spleen; (d) The splenic mass was resected within the ischemia line
gastric vessel and the superior splenic pole artery (Fig.14.2b), an obvious ischemia divid­ing line (Fig. 14.2c) can be observed at the upper splenic pole. Within the 0.5cm-1cm of the ischemia dividing line, an electrocoagu­lation hook or ultrasonic knife was used to remove the dividing line (Fig.14.2d), and the section should be accurately hemostatic.
Splenectomy is mainly used to remove benign masses conned to the lower part of the spleen, preserving the upper pole and mid­dle part of the spleen. The spleen-colonic liga­ment, spleen-renal ligament, splenic omentum vessels, and splenic inferior artery (secondary splenic vessels) should be dissected, and the splenic inferior pole should be resected within the ischemic boundary after the ischemia band appears in the splenic inferior pole.
Surgical selection should be particularly careful when the splenic mass is located in the middle of the spleen near the hilum. Resection of a mass near the hilar of the spleen is not the best indication for laparoscopic or robotic par­tial splenectomy. There is a rich vascular net­work near the hilum of the spleen, and it is difcult to separate the secondary vessels of the spleen. In the process of splenectomy in the middle of the spleen, there is often more bleeding. When hemostasis is difcult, total splenectomy or open surgery should be per­formed. If the splenic mass is located in the medial lateral part of the spleen or far from the hilum of the spleen, the surgical method of mass exhumation can be adopted. During the operation, close attention should be paid to the bleeding situation, which is difcult and risky.
14 Robotic-assisted Partial Splenectomy
https://t.me/medicina_free
99
6. The spleen removed the lens from the left side of the abdomen (operating hole 2) into, out time for 8mm casing, improvement to offer 12mm casing to put content bag is opened, the spleen into, and then closed mouth and pulled out a 12mm casing expand poke holes, pull out the fetch mouth, spleen removed with egg circle clamp or scissors to cut up, pay attention to avoid any damage to fetch the bag the spleen tissue left abdomen.
7. The abdominal cavity was explored by plac­ing the umbilical cord with discontinuous suture of absorbable thread for drainage to make the splenic incision, reconstruct the pneumoperitoneum, and ush the spleen bed and the residual splenic section to investigate whether there is active bleeding. A routine drainage tube was placed in the splenic fossa, the lens was removed, and the incision was sutured.
14.6 Technical Points andSkills
reduce the risk of massive bleeding. During splenectomy, attention should be given to pre­serving the short gastric vessels and the liga­ments of the spleen and stomach to prevent ischemia or torsion of the upper pole of the spleen. During the resection of the upper pole of the spleen, attention should be paid to pre­serving the splenic omentum vessels and the spleen-colon ligament to prevent the ischemia or torsion of the lower pole of the spleen. When it is difcult to expose the anatomy of the upper pole of the spleen, a traction wire can be applied to pull the stomach to the right to expose the visual eld.
3. Dual ligation of silk thread and hemo-lock is more reliable for the ligation of splenic ves­sels. Robotic instruments lack force feedback, so grip strength must be controlled during the anatomy of the splenic hilar vessels to avoid blood vessel tearing and bleeding. After the operation, drainage of the splenic fossa is helpful to observe postoperative bleeding.
1. Because of the operation of the upper abdo­men, the distal side of the manipulator arm is prone to downward pressure. However, due to the remote control of the master, in the absence of force feedback, the manipulator arm may compress the patient's leg and cause injury while the master is unaware of the seri­ous consequences. Therefore, the body posi­tion should be taken with the head high foot low position, cephalic elevation of about 15–30°, and right side tilt of 10–15°. Adequate movement space was given to the robotic arm during operation. The location of the puncture operation hole should be adjusted according to the size of the spleen [7]. In principle, the location of the operation hole should be more than 2 cm from the edge of the spleen and more than 4 cm from the operation area to avoid the limitation of the movement of the manipulator arm.
2. When the splenic mass to be resected is located in the middle of the spleen, the risk of intraoperative bleeding is increased, and pre­occlusion of the splenic artery is feasible to
14.7 Postoperative Complications
1. Postoperative bleeding usually occurs within 24hours after surgery [8, 9], and the common causes are ligation of vascular line knots or coagulation resection of vessel eschar shed­ding and bleeding, even bleeding on the wound surface. When treating the spleen ped­icle, loose or unstable ligation and retraction of blood vessels may cause massive bleeding. In particular, preoperative blood diseases with coagulation mechanism disorders should be corrected, and intraoperative blood vessels should be carefully handled. The wound should be carefully examined for active bleed­ing before the end of the operation. Attention should be given the spleen bed drainage tube small blood loss can be follow-up observed, quickly replenishing the blood volume, hemo­stasis; If the amount of bleeding is large, rapid surgical exploration should be performed to clear the bleeding area, and ligation or sutur­ing should be performed at the active bleeding site to stop the bleeding.
100
https://t.me/medicina_free
Z. Gao and Y. Zhang
2. The incidence of pancreatic stula after sple­nectomy is 3–5%. The Amylase test can be used to identify the drainage uid. The cause of postoperative pancreatic stula is closely related to the spleen, and the pancreatic tail is injured during the intraoperative treatment of the splenic pedicle or the application of the straight-cut closure device, resulting in postoperative pancreatic stula. It is very important to maintain smooth drainage for the management of postoperative pancreatic stula. In addition, inhibition of trypsin secretion, anti-inammation, maintenance of water and electrolyte balance, and systemic nutritional support can mostly be conserva­tively improved. If there is no improvement or deterioration of the condition, surgery can be performed. The prevention measures of pancreatic stula should be a gentle opera­tion during the operation, familiarity with the anatomy, avoidance of large ligation at the tail of the pancreas, and adoption of the treatment method of secondary splenic pedi­cle to reduce the injury of the tail of the pancreas.
3. Tumor recurrence: There is a certain recur­rence rate after splenic mass resection, and the level of recurrence rate is related to the integ­rity of the resection. It has been reported in the literature that the recurrence rate after splenectomy or partial resection of the splenic mass is signicantly lower than that after win­dowing of the splenic mass (cyst). Extended partial resection is an effective mean to reduce the recurrence rate.
4. Residual abdominal infection of the left subphrenic abscess is the most common, mainly in subphrenic blood and uid sec­ondary infection, improper treatment of pancreatic tail injury, gastric or colon col­lateral injury pollution, patients with low immunity, etc. Postoperative persistent high fever and symptoms of diaphragmatic stim­ulation should be taken into account, and further X-ray examination should be con­ducted to show left diaphragmatic elevation and movement limitation. Ultrasound or CT could nd subdiaphragmatic uid inclusion.
After diagnosis, active anti-infection and supportive treatment should be performed. If the conservative effect is not good, punc­ture or incision drainage should be per­formed in time. It is very important to maintain the patency of postoperative drain­age by careful operation, avoiding contami­nation and placing subphrenic drainage tubes after operation.
5. Portal vein thrombosis (PVT) is a potentially life-threatening complication that can occur days to months after surgery. Postoperative portal vein thrombosis may be related to mul­tiple factors such as vascular endothelial injury, local eddy current formed by slow por­tal vein blood ow velocity, and platelet increase. The clinical manifestations of PVT are usually atypical and may include diffuse abdominal pain, fever, nausea, diarrhea, loss of appetite, or other symptoms. In patients with nonspecic abdominal symptoms, PVT must be considered and examined early. PVT should be treated with intravenous low molec­ular weight heparin and later oral warfarin as soon as diagnosed. The current standard of warfarin treatment aims to maintain the inter­nationally standardized rate of 3–6 months (INR between 1.5 and 2.0).
6. Incisional hernias tend to occur at umbilical incisions, where the spleen is prolonged and removed through the umbilical incision. The size of the umbilical incision is usually 15–25 mm. In general, the puncture site is larger than 5mm and the whole suture process is recommended to close the abdominal wall defect to reduce the risk of incision, dehis­cence, or incisional hernia.
7. Intravenous obstruction: There is a risk of adhesive ileus after any abdominal surgery. Accurately performing the surgical process to minimize side injuries is crucial for reducing the incidence of postoperative adhesions. Anti- adhesion products can also be used pro­phylactically. Finally, during the process of closing the peritoneal membrane, accidental suturing of the omentum or intestinal canal causing iatrogenic adhesive intestinal obstruc­tion should be avoided.
14 Robotic-assisted Partial Splenectomy
https://t.me/medicina_free
101
14.8 Comparisons withConventional Laparoscopic Surgery
Robotic partial splenectomy (RPS) is essentially laparoscopic partial splenectomy (LPS) with upgraded instruments and equipment [10]. The operation relies on the visual eld provided by the primary view scope. If the visual eld is con­taminated or massive bleeding cannot expose the operating eld, it cannot replace open surgery. RPS has many advantages over LPS, but there are also some disadvantages.
14.8.1 Advantages
1. The three-dimensional vision of RPS is
clearer than that of LPS [11, 12].As a thermal light source, the lens clarity can be maintained for a long time without being affected by smoke, which guarantees a for smooth surgi­cal process.
2. The highly exible robotic arm system of RPS
can complete difcult operations such as grasp­ing, holding, crossing, hemostasis, and ligation in a narrow space, which suturing cannot be achieved by LPS and human hands [13, 14]. At the same time, it reduces the sense of fatigue of the surgeon and reduces, the misoperation.
3. The learning curve of robot system for dif-
cult surgery is signicantly the lower than that of traditional laparoscopy, and doctors with certain experience in laparoscopic surgery can quickly adapt to surgical operations.
14.8.2 Limitations
1. The robotic arm of the robot system will
occupy a certain space, and the selection and operation space of the assistant auxiliary hole will be more limited than that of the tradi­tional laparoscope [15].
2. The operation cost of the robot system and the
use of instruments are higher than those of traditional laparoscopy. The conversion prob-
ability of partial splenectomy is higher than that of total splenectomy, which will increase the medical cost.
References
1. Balaphas A, Buchs NC, Meyer J, etal. Partial sple­nectomy in the era of minimally invasive surgery: the current laparoscopic and robotic experiences. Surg Endosc. 2015;29:3618–27.
2. Vasilescu C, Tudor S, Popa M, Tiron A, Lupescu I. Robotic partial splenectomy for hydatid cyst of the spleen. Langenbeck’s Arch Surg. 2010;395: 1169–74.
3. Wiwanitkit V. Partial robotic splenectomy in hydatid disease. Langenbeck’s Arch Surg. 2019:5.
4. Kirih MA, Liang X, Xie Y, etal. Robot-assisted par­tial splenectomy for splenic epidermoid cyst. Case Rep Surg. 2020;2020:6245909.
5. Royall NA, Walsh RM. Robotic distal pancreatec­tomy and splenectomy: rationale and technical con­siderations. J Visual Surg. 2017;3:135.
6. Kashi PK, Rojas C, Casablanca Y, et al. A seven­step surgical strategy for robotic splenectomy. Int J Gynecol Cancer. 2020;30:1079–80. https://doi.
org/10.1136/ijgc- 2020- 001259.
7. Di Franco G, Gianardi D, Bianchini M, et al. The role of hand-assisted laparoscopic splenectomy for mega spleens in the da Vinci era. J Robot Surg. 2019;13:791–2.
8. Aziret M, Koyun B, Karaman K, etal. Intraoperative hemorrhage and increased spleen volume are risk fac­tors for conversion to open surgery in patients under­going elective robotic and laparoscopic splenectomy. Turk J Surg. 2020;18:72–81.
9. Peng F, Lai L, Luo M, et al. Comparison of early postoperative results between robot-assisted and laparoscopic splenectomy for non-traumatic splenic diseases rather than portal hypertensive hyper­splenism-a meta-analysis. Asian J Surg. 2020;43: 36–43.
10. Manciu S, Nae GA, Diaconu A, et al. Long-term evaluation of the outcomes of subtotal laparoscopic and robotic splenectomy in hereditary spherocytosis. World J Surg. 2020;44:2220–8.
11. Davide C, Solaini L, Di Pietrantonio D, etal. Robotic vs laparoscopic splenectomy for splenomegaly: a retrospective comparative cohort study. Int J Surg. 2018;55:1–4.
12. Shelby R, Kulaylat AN, Villella A, etal. A compari­son of robotic-assisted splenectomy and laparoscopic splenectomy for children with hematologic disorders. J Pediatr Surg. 2021;56:1047–50.
13. Bhattacharya P, Phelan L, Fisher S, et al. Robotic vs. laparoscopic splenectomy in Management
102
https://t.me/medicina_free
Z. Gao and Y. Zhang
of non- traumatic Splenic Pathologies: a system­atic review and meta-analysis. Am Surg. 2021; 17:38–47.
14. Cavaliere D, Solaini L, Di Pietrantonio D, et al. Robotic vs laparoscopic splenectomy for spleno-
megaly: a retrospective comparative cohort study. Int J Surg. 2018;55:1–4.
15. Parsi S, Siripurapu V. Robotic-assisted splenectomy for massive splenomegaly secondary to sarcoidosis. Am Surg. 2018;84:e201–3.
Robotic-Assisted Mesenteric Cyst
https://t.me/medicina_free
Resection
ZhigangGao andDiHu
15.1 Introduction
A mesenteric cyst is a cystic mass that develops in the abdomen due to congenital lymphangio­dysplasia [1]. It is a rare condition that accounts for about 1in 20,000 hospitalized children and is more commonly seen in children between the ages of 2 and 10 years. The rst report of mesen­teric cysts was in 1507 by Benevenni, an Italian anatomist, who found the abdominal mass during an autopsy on an 8-year-old boy [2]. Mesenteric cysts can occur in various locations throughout the body, ranging from the mesentery of the duo­denum to the sigmoid colon and even within the retroperitoneum. Mesenteric cysts are commonly found in the mesentery of the small bowel, espe­cially in the ileum. Kurtz reported that in a series of 162 patients, 60% of mesenteric cysts affected the small bowel, 24% affected the mesentery of the large bowel, and 14.5% were located in the retroperitoneum at the base of the mesentery [3].
Supplementary Information The online version con­tains supplementary material available at https://doi.org/
10.1007/978- 981- 19- 9693- 1_15.
Z. Gao (*) · D. Hu Department of General Surgery, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China e-mail: ebwk@zju.edu.cn
15
The presentation of mesenteric cysts can vary widely, depending on their location, size, and whether they compress other abdominal organs. Symptoms are often nonspecic, mesenteric cysts are typically diagnosed incidentally using ultrasonography or CT scans [4].
The presence or absence of characteristic clin­ical presentations of mesenteric cysts is related to their size. Symptoms are often not obvious and nonspecic, but may include abdominal pain, vomiting, constipation, and a palpable abdominal mass [4]. Abdominal discomfort and pain are the most frequently reported symptoms, accounting for 80% of cases [4]. Mesenteric cysts can lead to a variety of complications, including torsion, rupture, hemorrhage, infection, and intestinal obstruction [5]. The rst successful surgical treat­ment of a mesenteric cyst was performed by Tillaux in 1880 [6]. In 1897, O’Conor described a procedure in which the edges of a chylous mes­enteric cyst were sutured to the skin to create a marsupialized opening, after initially trying to make an enucleation procedure but stopping due to risk of hemorrhage [7]. Laparoscopic surgery for mesenteric cysts was rst successfully reported in 1993 by Mackenzie etal. [4] due to the rarity of the condition. In cases whose cyst is located near a major abdominal vessel, some sur­geons have opted for laparotomic or laparoscopic fenestration of the cyst.
In recent years, the utilization of laparoscopic mesenteric cyst resection is gradually increasing,
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023 Q. Shu (ed.), Pediatric Robotic Surgery, https://doi.org/10.1007/978-981-19-9693-1_15
103
104
https://t.me/medicina_free
Z. Gao and D. Hu
due to the advances in laparoscopy, resulting in satisfactory treatment outcomes, especially in adults [5, 6]. Reports on laparoscopic treatment for mesenteric cysts in children are scarce. The advent of digital surgery is bringing about unprecedented changes to this centuries-old eld, with robotic surgery experiencing rapid develop­ment. While its usage for pediatric cyst resection is scarcely reported both domestically and over­seas, this unique method is likely to see more widespread application in the future. Therefore, this chapter primarily discusses the use of the Da Vinci robotic surgical system in the treatment of mesenteric cysts in children.
15.2 Indications andContraindications
• Indications
Mesenteric cysts that have either been denitively diagnosed or highly suspected at a small to medium size range, as well as giant mesenteric cysts.
• Contraindications The utilization of da Vinci robot-assisted
technology in the surgical treatment of mes­enteric cysts has no absolute contraindica­tions. However, there are several relative contraindications that must be taken into con­sideration, including: (1) unstable vital signs are unstable; (2) severe cardiopulmonary insufciency and pneumoperitoneum intoler­ance; (3) urgent surgery required due to abdominal distension complicated by stran­gulated intestinal obstruction; (4) past abdom­inal surgery with signicant adhesion in the surgical area (5) secondary cyst infection accompanied by peritonitis, where severe intraperitoneal, and adhesions have occurred from a ruptured cyst. In cases where a child presents with the aforementioned conditions, a thorough diagnosis and treatment plan must be established, taking into account all rele­vant factors when considering whether Da Vinci surgery is appropriate.
15.3 Preoperative Preparation
• Prior to surgery, it is essential to conduct an individualized operation plan that includes ultrasonic Doppler, CT, or MRI examinations to better understand the relationship between the size and location of the celiac cyst and the surrounding tissue. This will help to ensure a successful operation.
• In preparation for surgery, it is crucial to main­tain stable internal conditions through preop­erative rehydration correction. If intestinal inammation is present, antibiotics should be administered. Severe anemia patients may require red blood cell corrective anemia sus­pension, while malnourished children may require nutritional support to ensure optimal conditions for surgery.
• In line with the ERAS concept, patients should fast on semiuids for 6 hours and abstain from water for 2 hours prior to sur­gery. Skin and blood should be prepared accordingly. A glycerine enema must be administered before surgery, and gastrointes­tinal decompression and catheterization must be performed after anesthesia induction to create additional abdominal operation space.
• In the absence of overt abdominal infection, second- or third -generation cephalosporins can be used prophylactically for children. These antibiotics should be administered intravenously thirty minutes before surgery.
15.4 Position andDocking
• Position: conventional supine position
• Docking (adjusted according to the location and size of the cyst)
To begin the surgery, an 8 mm median umbilical incision into the abdomen was made, and pneumoperitoneum was estab­lished. The Da Vinci trocar is inserted as the primary mirror hole. The body surface projec­tion of the mesenteric cyst and the umbilicus