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 - 292 - файл

.pdf
Скачиваний:
0
Добавлен:
28.08.2026
Размер:
64 Мб
Скачать
203
PLATE
93
SUTURE OF PORT SITE  e cystic artery is cleared for a -cm
zone and its path followed onto the surface of the gallbladder.  e clear zone is then doubly secured with metal clips both proximally and distally (figure 13).  e cystic artery may be divided with endoscopic heavy scis­sors. However, many prefer to wait until a er the cystic duct cholangiogram, as the intact cystic artery may serve as a helpful tether should the cystic duct be transacted during its opening for the cholangiogram catheter.
 e cystic duct is also cleared for about  cm or so such that the surgeon can clearly identify its continuity with the gallbladder and its junction with the common duct. A metal clip is applied as high as possible on the cystic duct where it begins to dilate and form the gallbladder. If a cholangiogram is not to be performed, then two clips are placed on the proximal cystic duct and the duct is divided. If a cholangiogram is to be performed, the surgeon should be certain that all the equipment is available.  is includes a catheter of choice, two syringes (one for saline and one for contrast), a stopcock for the syringes, and extension tubing. All of the air must be emptied from the tubing prior to performing the cholangiogram. In prepa­ration for insertion of the cholangiocath, using the endoscopic scissors through the middle port (figure 14), the cystic duct is opened and bile is noted. If necessary, the opening may be dilated with the scissor tips.  e cholangiogram catheter of choice is passed through the middle port and the duct cannulated (figure 15). Some catheters are secured within a winged clamp, whereas others rely on an in ated intraluminal Fogarty­like balloon. A simple straight plastic catheter may be secured with a gen­tly applied metal clip over the lower cystic duct containing the catheter. It should be snug enough to prevent leakage but loose enough to avoid crimping the catheter and thus preventing dye injection. Alternatively, a -guage angiocath is inserted into the abdominal wall between the mid-
C, L
clavicular trocar and that in the anterior axillary line. A  French ureteral catheter or other similar catheter may be inserted into the abdominal cav­ity through this angiocath and then guided into the cystic duct and held in place with a clip.
In preparation for the cholangiogram, the videoscope and metal instru­ments are removed.  e radiolucent ports are aligned in a vertical axis so as to minimize their appearance on the x-ray.  e  eld is covered with a sterile towel and the x-ray equipment positioned. Simple dye injections with indi­vidual  lms or a sustained injection under  uoroscopy are performed.  e principal ducts are visualized thus ensuring anatomic integrity, the absence of ductal stones, and  ow into the duodenum. Upon completion of a sat­isfactory cholangiogram, the lower cystic duct is doubly clipped and the cystic duct divided with endoscopic scissors (figure 16). However, should an abnormal or confusing cholangiogram be obtained, the surgeon should convert to an open procedure with full anatomic veri cation.
 e cystic duct junction with the gallbladder is grasped with forceps through the middle port and the gallbladder is removed from its bed begin­ning inferiorly and carrying the dissection up the gallbladder fossa. Most surgeons score the lateral peritoneum for a centimeter or so with electro­cautery (figure 17) and then elevate the gallbladder from the liver bed. Appropriate traction, o en to the sides, is required to provide exposure of the zone of dissection with an electrocautery instrument between the gall­bladder and its bed (figure 18). Vigorous traction with the forceps or dis­section into the gallbladder wall may produce an opening with spillage of bile and stones. Such openings should be secured if possible using forceps, metal clips, or a suture loop, which is  rst placed over the forceps and then closed like a lasso over the hole and the adjacent gallbladder wall that is tented up by the forceps.
CONTINUES
204
205
PLATE
94
SUTURE OF PORT SITE As the dissection proceeds well up
the gallbladder bed, it may be necessary for the  rst assistant to actively position and reposition the two forceps on the gallbladder so as to provide good exposure for the surgeon. When the dissection is almost complete and traction on the gallbladder still allows superior displacement of the liver with a clear view of the gallbladder bed and operative site, the surgeon should reinspect the clips on the cystic duct and artery for their security and the liver bed for any bleeding sites.  e region is irrigated with saline (figure 19) and the diluted bile and blood are aspirated from the lateral gutter just over the edge of the liver.  e  nal peritoneal attachments of the gallbladder are divided from the liver and the gallbladder is positioned above the liver, which has now fallen back inferiorly to its normal position.
 e videoscope is removed from the umbilical port and inserted in the epigastric one. If a -mm port was used at the xiphoid site in order to reduce the incidence of incisional hernia, then a -mm laparoscope is substituted for the -mm scope. Consideration should be given to contain the gall­bladder in a laparoscopic retrieval bag prior to removal, especially if the gallbladder is abnormal and there is a concern for malignancy, it is infected, or it has been opened.
A grasping forceps is passed through the umbilical port so as to pick up the end of the specimen in the region of the cystic duct or the specimen retrieval bag (figure 20).  is exchange may be somewhat disorienting to the surgeon and  rst assistant as le and right are now reversed in a mirror-image manner on the monitor screens. If the gallbladder stones are small, one is usually able to withdraw the gall-bladder, forceps, and umbili-
C, L
cal port back out to the level of the skin where the gallbladder is grasped with a Kelly clamp (figure 21). Bile and small stones may be easily aspi­rated whereupon the gallbladder will exit easily through the umbilical site under direct vision of the videoscope in the epigastric port.
Extraction of large stones or many medium-sized stones may require crushing prior to extraction (figure 22) or require that the linea alba open­ing be enlarged. A er extraction, the umbilical site is temporarily occluded with the assistant’s gloved  nger so as to maintain the pneumoperitoneum.  e middle and lateral ports are removed as the videoscope inspects for any bleeding at these sites.  e videoscope is removed and the pneumoperito­neum is evacuated so as to lessen postoperative discomfort.
CLOSURE  e operative sites are in ltrated with a long-acting local anes-
thetic (bupivacaine) (figure 23), and the fascia at the -mm port sites is resutured with one or two absorbable sutures (figure 24).  e skin is approximated with absorbable subcutaneous sutures. Adhesive skin strips and a dry sterile dressing are applied.
POSTOPERATIVE CARE  e orogastric tube is removed in the operating
room prior to emergence from general anesthesia. Pain at the operative site is usually well controlled with oral medications. Although patients have some transient nausea, most are able to take oral liquids within  to  hours and may be discharged home within one day. Follow-up by the surgeon is important, as biliary injuries are o en occult and delayed in presenta­tion. Prolonged or new, unexpected pain should be evaluated with physical examination, laboratory tests, and a HIDA radionuclide scan.
206
207
PLATE
95
INDICATIONS Cholecystectomy is indicated in patients with proven dis-
ease of the gallbladder that produces symptoms.  e incidental  nding of gallstones by x-ray or a history of vague indigestion is insu cient evidence for operation in itself, especially in the elderly, and does not justify the risk involved. On the other hand, it is doubtful whether gallstones can ever be considered harmless, because, if the patient lives long enough, complica­tions are likely to develop. Today, most patients have laparoscopic removal of their gallbladder.  e procedure described here is called “open” and is most commonly performed at a conversion to open when the initial lap­aroscopic approach encounters complex technical events (swollen, gangre­nous gallbladder, confusing anatomy, or abnormal cholangiograms, etc.) or major complications (ductal, blood vessel, or bowel injury) that are best treated with open exposure. Although open cholecystectomy is no longer the primary operation of choice, its mastery is essential in combination with the laparoscopic approach.
PREOPERATIVE PREPARATION A low-fat diet is advised.  e patient
should be free from respiratory infection. A roentgenogram of the chest is taken. Very obese patients should reduce their weight substantially by dieting, unless they are having recurrent attacks of colic.  e entire gas­trointestinal tract should be surveyed for additional disorders, i.e., hiatal hernia, ulcer of the stomach or duodenum, and carcinoma or diverticulitis of the colon.
ANESTHESIA General anesthesia with endotracheal intubation is recom-
mended. Deep anesthesia is avoided by the use of a suitable muscle relax­ant. Spinal, either single-injection or continuous technique, may be used in preference to general anesthesia. In those patients su ering from extensive liver damage, barbiturates as well as other anesthetic agents suspected of hepatotoxicity should be avoided. In elderly or debilitated patients, local in ltration anesthesia is satisfactory, although some type of analgesia is usually necessary as a supplement at certain stages of the procedure.
POSITION  e proper position of the patient on the operating table is
essential to secure su cient exposure (figure 1). Arrangements should be made for an operative cholangiogram. An x-ray cassette or  uoroscopic C-arm needs su cient space to be centered under the patient to ensure coverage of the liver, duodenum, and head of the pancreas.  e exposure can be enhanced by tilting the table until the body as a whole is in a semi­erect position.  e weight of the liver then tends to lower the gallbladder below the costal margin. Retraction is also aided in this position, because the intestines have a tendency to fall away from the site of operation.
OPERATIVE PREPARATION  e skin is prepared in the routine manner.
INCISION AND EXPOSURE Two incisions are commonly used: the verti-
cal high midline and the oblique subcostal (figure 2). A midline incision is used if other pathology, such as hiatus hernia or duodenal ulcer, requires surgical consideration.  ose favoring the subcostal incision believe the exposure is good, early postoperative wound discomfort minimal, and the
C, R M
incidence of late postoperative hernias much lower than that following the vertical incisions. A er the incision is made, the details of the procedure are identical, irrespective of the type of incision employed.
DETAILS OF PROCEDURE A er the peritoneal cavity has been opened,
the gloved hand, moistened with warm saline solution, is used to explore the abdominal cavity, unless there is an acute suppurative infection involving the gallbladder.  e stomach and particularly the duodenum are inspected and palpated, and there is a general abdominal exploration that includes careful evaluation of the size of the esophageal hiatus.  e surgeon next passes the right hand up over the dome of the liver, allowing air between the diaphragm and liver to aid in displacing the liver downward (figure 3).
When assistance is limited, an external ring self-retaining retractor with adjustable retracting blades (such as a Bookwalter type) may be used advantageously, or an ordinary retractor of the Halsted type may be used on the right side to retract the costal margin. A half-length clamp is applied to the falciform ligament and another to the fundus of the gallbladder ( figure 4). Most surgeons prefer to divide the falciform ligament between half-length clamps, and both ends should be ligated; otherwise, active arte­rial bleeding will result. Downward traction is maintained by the clamps on the fundus of the gallbladder and on the round ligament.  is traction is exaggerated with each inspiration as the liver is projected downward (figure 4). A er the liver has been pulled downward as far as easy traction allows, the half-length clamps are pulled toward the costal margin to present the undersurfaces of the liver and gallbladder (figure 5). An assistant then holds these clamps while the surgeon prepares to wall o the  eld. If the gall­bladder is acutely in amed and distended, it is desirable to aspirate some of the contents through a trocar before the half-length clamp is applied to the fundus; otherwise, small stones may be forced into the cystic and common ducts. Adhesions between the undersurface of the gallbladder and adja­cent structures are frequently found, drawing the duodenum or transverse colon up into the region of the ampulla. Adequate exposure is maintained by the assistant, who exerts downward traction with a warm, moist sponge.  e adhesions are divided with curved scissors until an avascular cleavage plane can be developed adjacent to the wall of the gallbladder (figure 6). A er the initial incision is made, it is usually possible to brush these adhe­sions away with gauze sponges held in thumb forceps (figure 7). Once the gallbladder is freed of its adhesions, it can be li ed upward to a ord better exposure. In order that the adjacent structures may be packed away with moist gauze pads, the surgeon inserts the le hand into the wound, palm down, to direct the gauze pads downward.  e pads are introduced with long, smooth forceps.  e stomach and transverse colon are packed away, and a  nal gauze pack is inserted into the region of the foramen of Winslow (figure 8).  e gauze pads are held in position either by a large S retractor along the lower end of the  eld or by the le hand of the  rst assistant, who, with  ngers slightly  exed and spread apart, maintains moderate downward and slightly outward pressure, better de ning the region of the gastrohepatic ligament.
CONTINUES
208
Foam
Pneumatic sequential compression stockings
Electrocautery ground pad
Table reversed open area for X-ray
Gallbladder
Rectus muscle
Incisions
Diaphragm
Inferior margin of liver
Costal margin
Liver
Round ligament
Fundus of gallbladder
Transverse colon
Stomach
Gallbladder
Duodenum
Hepatoduodenal ligament
Foramen of Winslow
“S” retractor
Table control
1
2
3
4
5
6
7
8
209
PLATE
96
DETAILS OF PROCEDURE A er the  eld has been adequately
walled o , the surgeon introduces the le index  nger into the foramen of Winslow and, with  nger and thumb, thoroughly palpates the region for evidence of calculi in the common duct as well as for thickening of the head of the pancreas. A half-length clamp, with the concavity turned upward, is used to grasp the undersurface of the gallbladder to attain traction toward the operator (figure 9).  e early application of clamps in the region of the ampulla of the gallbladder is one of the frequent causes of accidental injury to the common duct.  is is especially true when the gallbladder is acutely distended, because the ampulla of the gallbladder may run parallel to the common duct for a considerable distance. If the clamp is applied blindly where the neck of the gallbladder passes into the cystic duct, part or all of the common duct may be accidentally included in it (figure 10). For this reason it is always advisable to apply the half-length clamp well up on the undersurface of the gallbladder before any attempt is made to visualize the region of the ampulla of the gallbladder.  e enucleation of the gall­bladder is started by dividing the peritoneum on the inferior aspect of the gallbladder and extending it downward to the region of the ampulla.  e peritoneum usually is divided with an electrocautery or long Metzenbaum dissecting scissors.  e incision is carefully extended downward along with hepatoduodenal ligament (Figures 11 and 12). By means of blunt gauze dissection the region of the ampulla is freed down to the region of the cys­tic duct (figure 13). A er the ampulla of the gallbladder has been clearly de ned, the clamp on the undersurface of the gallbladder is reapplied lower to the region of the ampulla.
With traction maintained on the ampulla, the cystic duct is de ned by means of blunt dissection (figure 13). A long right-angle clamp is then passed behind the cystic duct.  e jaws of the clamp are separated cau­tiously as counter-pressure is placed on the upper side of the lower end of the gallbladder by the surgeon’s index  nger. Slowly and with great care, the cystic duct is isolated from the common duct (figure 14).  e cystic artery
C, R M
is likewise isolated with a long right-angle clamp. If the upward traction on the gallbladder is marked, and the common duct is quite  exible, it is not uncommon to have it angulate sharply upward, giving the appearance of a prolonged cystic duct. Under such circumstances, injury to the common duct or its division may result when the right-angle clamp is applied to the supposed cystic duct (figure 15 and insert). Such a disaster may occur when the exposure appears too easy in a thin patient because of the extreme mobilization of the common duct.
A er the cystic duct has been isolated, it is thoroughly palpated to ascer­tain that no calculi have been forced into it or the common duct by the application of clamps and that none will be overlooked in the stump of the cystic duct.  e size of the cystic duct is carefully noted before the right­angle crushing clamp is applied. If the cystic duct is dilated and if it seems from palpation that the gallbladder contains calculi so small that they could pass through it easily, it is advisable to perform a choledochostomy. Regard­less, an operative cholangiogram is performed routinely through the cystic duct a er it has been divided (Plate , figure 24). Because it is more di ­cult to divide the cystic duct between two closely applied right-angle clamps, a curved half-length clamp is placed adjacent to the initial right-angle clamp.  e curvature of the half-length clamp makes it ideally suited for directing the scissors downward during the division of the cystic duct (figure 16). Whenever possible, unless occluded by severe in ammation, the cystic duct and cystic artery are isolated separately to permit individual ligation. Under no circumstances is a right-angle clamp applied to the supposed region of the cystic duct in the hope that both the cystic artery and cystic duct can be included in one mass ligature. It is surprising how much additional cystic duct can o en be developed by maintaining traction on the duct as blunt gauze dissection is carried out. A er the cholangiogram, the cystic duct is ligated with a trans xing suture (figure 17) or ligature, being sure not to encroach on the common duct. In general, the free length beyond the tie should approximate the diameter of the duct or vessel.
CONTINUES
210
211
PLATE
97
DETAILS OF PROCEDURE If the cystic artery was not
divided before the cystic duct, it is now carefully isolated by a right-angle clamp similar to those used in isolating the cystic duct (figure 18).  e cystic artery should be isolated as far away from the region of the hepatic duct as possible. A clamp is never applied blindly to this region, lest the hepatic artery lie in an anomalous location and be clamped and divided, resulting in a fatality (figure 19). Anomalies of the blood supply in this region are so common that this possibility must be considered in every case.  e cystic artery is divided between clamps similar to those utilized in the division of the cystic duct (figure 20).  e cystic artery should be tied as soon as it has been divided to avoid possible di culties while the gallbladder is being removed (figure 21). If desired, the ligation of the cystic duct can be delayed until a er the cystic artery has been ligated. Some prefer to ligate the cystic artery routinely and leave the cystic duct intact until the gallbladder is completely freed from the liver bed.  is approach minimizes possible injury to the ductal system as complete exposure is obtained before the cystic duct is divided. If the clamp or tie on the cystic artery slips o , resulting in vigorous bleeding, the hepatic artery may be compressed in the gastrohepatic ligament (Pringle maneuver) by the thumb and index  nger of the le hand, temporarily controlling the bleeding (figure 22).  e  eld can be dried with suction by the assistant, and, as the surgeon releases compression of the hepatic artery, a hemostat may be applied safely and exactly to the bleeding point.  e stumps of the cystic artery and cystic duct each are inspected thoroughly and, before the operation proceeds, the common duct is again visualized to make certain that it is not angulated or otherwise disturbed. Blind clamping in a bloody  eld is all too frequently responsible for injury to the ducts, producing the complication of stricture. Classic anatomic relationships in this area should never be taken for granted, since normal variations are more com­mon in this critical zone than anywhere else in the body.
A er the cystic duct and artery have been tied, removal of the gallblad­der is begun.  e incision, initially made on the inferior surface of the gall­bladder about  cm from the liver edge, is extended upward around the fundus (figure 23). An edematous cleavage plane can be developed easily by injecting a few milliliters of saline between the serosa and the seromus­cular layer, utilizing this cleavage plane for dissection. It is important that the serosa be divided with a scalpel or scissors along both the lateral and medial margins of the gallbladder so that the gallbladder is not torn from the liver bed by traction. If this occurs, raw liver surface results, and it may be impossible to peritonealize the liver bed. With the le hand, the surgeon holds the clamps that have been applied to the gallbladder and, by careful scissors dissection, divides the loose areolar tissue between the gallbladder and the liver.  is allows the gallbladder to be dissected from its bed with­out dividing any sizable vessels.  e  nal peritoneal attachment between gallbladder and liver is severed.
C, R M
When facilities permit, an operative cholangiogram (figure 24) should be made routinely to ensure complete clearance of the ductal system. A syringe of saline as well as diluted contrast media should be connected by a two-way adapter in a closed system to avoid the introduction of air into the ducts.  e cholangiogram catheter is  lled with saline and it is introduced a short distance into the cystic duct.  e tube is secured in the cystic duct by one tied suture utilizing a surgeon’s knot. All gauze packs, clamps, and retractors are removed as the table is returned to a level position by the anes­thesiologist. Five milliliters of contrast media,  to  concentration, are injected and the x-ray immediately taken. Limited amounts of a dilute solu­tion prevent the obliteration of any small calculi within the ducts. A second injection of  to  mL is made to outline the ductal system completely and ensure patency of the ampula of Vater.  e tube should be displaced laterally and the duodenum gently pushed to the right to ensure a clear roentgeno­gram without interference from the skeletal system or the tube  lled with contrast media. Two roentgenograms are taken to provide a comparison in case doubtful shadows are noted, and another complete series of cholang­iograms may be obtained if interpretation of the  rst two  lms is di cult. Alternatively, a  uoroscopic examination with continuous dye injection and periodic  lms may be performed. If no further studies are warranted, the tube is removed and the cystic duct ligated near the common duct. If the cystic duct cannot be used for the cholangiogram, a  ne gauge needle, such as a butter y, can be inserted into the common duct (figure 25).  e metal needle may be bent anteriorly as shown in the lateral view inset to facili­tate its placement. Two or three dye injections are made and the needle is removed.  e puncture site in the common duct is oversewn with a  absorbable suture and some surgeons place a closed suction Silastic suction drain (Jackson-Pratt) in Morrison’s pouch.
 e portal vessel area and the gallbladder bed are inspected for hemo­stasis and the omentum is tacked against the gallbladder bed. Culture of the gallbladder bile is performed routinely.
CLOSURE  e routine closure is performed. Most surgeons do not use a
drain when the  eld is dry and there is no evidence of leakage from acces­sory ducts.
POSTOPERATIVE CARE  e orogastric tube is removed in the operating
room by the anesthesiologist, while a nasogastric tube may be bene cial for a day or two if signi cant infection, ileus, or debility is present. Periopera­tive antibiotics are administered unless signi cant infection, gangrenous gallbladder, or cholangitis require several days of coverage for resolution of sepsis. Coughing and ambulation are encouraged immediately. Oral intake of  uids is begun within a day, whereupon intravenous hydration and elec­trolyte replacement are discontinued.  e diet is advanced to solid food as tolerated; however, foods that historically trigger the biliary attacks are resumed gradually.
212
Соседние файлы в папке @xirurgi_2025