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Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_202_библиотеки_им_акад_М_И_Перельмана

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circumstances and therefore we will describe its clo­sure. The peritoneum should be identified and raised by straight tissue forceps attached to the mid points of the wound on either side and at the lowest point. The sur­geon then begins to appose the peritoneum from the up­permost part, using an absorbable suture of the modern type such as Dexon or Vicryl. The suture is inserted in a continuous manner, the assistant keeping an even tension on the stitch so that the peritoneum is neither bunched nor so slack that windows appear. The editor often advises assistants that this should be a case of appose and not necrose (Fig. 6.8a).
Closing the rectus sheath
The sheath is closed in the same line as the peritoneum using a similar continuous absorbable suture (Fig.
6.8b).
Fat stitch
In very thin patients it is unnecessary to suture the fat. However, in the majority of patients, fat stitches should be used as a series of interrupted sutures to obliterate any potential space (Fig. 6.9a). Critics state that it is impossible to stitch fat. This may be so, but in women Scarpa’s fascia is often well developed and is well worthwhile suturing.
through it; if it is broad or there has been keloid forma­tion, the old scar should be excised. Excision is most easily performed by picking up the ends of the scar using tissue forceps such as Littlewood’s forceps. With the assistant holding the scar up the surgeon can cut accurately down either side of it.
Adhesions to the old scar
Previous surgery markedly increases the risk of the development of adhesions, particularly to the back of the scar. Entry into the abdomen must therefore be carried out in a circumspect way. If bowel is adherent to the anterior abdominal wall it should not be separated by pulling or rubbing with a swab. If there is no obvious plane of separation, the ‘postage stamp’ technique should be used. This involves removal of a ‘stamp’ of peritoneum with the bowel so that there is no danger of damage to the bowel wall.
Extension of the wound
This only applies to the mid-line and paramedian inci­sions. For the mid-line incision a lot has been written about how to handle the umbilicus, varying from cutting straight through to circumnavigation and even a curious oblique incision. Extension can be easily and accurately performed if the surgeon and his assistant elevate the upper part of the wound using the index fingers, and the surgeon cuts through all layers with a knife, keeping the abdominal contents in full view. The umbilicus is therefore easily circumnavigated using this technique.
Closure of the abdomen
At the end of the surgical procedure, having made cer­tain that there is no untoward bleeding, the abdominal pack is removed; the swab, instrument and needle count is carried out and reported and confirmed to be satisfactory. There is no great advantage in bringing down the omentum to lie in the pelvis unless there is a wide defect in the peritoneum (see Chapter 12). The abdominal wall can now be closed, maintaining the patient in Trendelenburg whilst the various layers are sutured.
Closing the peritoneum
There is considerable discussion as to whether the abdominal peritoneum should be closed. There is no absolute certainty as to the correct procedure in these
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Fig. 6.8 (a) Closing the peritoneum; (b) rectus sheath.
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(a)
(b)
thick tender scar. This may be reduced by using a nylon subcuticular stitch, which is removed after a few days.
Variations in technique Deep tension sutures. If there is a significant risk of
wound infection and/or breakdown, e.g. if there has been wound soiling or there is extensive intraperitoneal carcinoma, then it is prudent to support the wound as much as possible. This is best done by using deep ten­sion sutures. The sutures should be of a monofilament material to reduce the introduction of further infection. It is best to use a large curved atraumatic needle. The su­ture should pass through all layers, being placed wide of the wound edges, so that when it is tied, following the normal layered closure, the plastic tube spacers lie across the wound edges (Fig. 6.11). Usually between four and six deep tension sutures are required.
Mass closure. This technique, which uses a ‘far and near’ continuous suture technique (Fig. 6.12), has gained in popularity as it provides a simple strong clo­sure with a very low dehiscence rate. Although not so aesthetically satisfying, it is a sound closure system, es­pecially for patients at high risk of wound breakdown.
Transverse or Pfannenstiel incision
The single most important value of this incision is cosmetic. It is important for many women that their abdomens should remain apparently untouched by the surgeon’s knife, and using this technique the illusion can be maintained. The incision follows Langer’s lines, a short distance above the symphysis pubis, usually just within the pubic hair line. Most minor pelvic surgery can be easily performed through this incision and as the surgeon develops his skills he will find that most hysterectomies, minor tubal and ovarian surgery, and lower segment caesarean sections come within the compass of this route of access. In the author’s view, the use of this incision for more radical surgery and parti­cularly Wertheim’s hysterectomy should be eschewed, although some clinicians do utilize it in these circumstances.
This incision is also of particular value when operat-
ing on the extremely obese patient, for the area a short distance above the symphysis pubis is often the thin­nest part of the abdominal wall, and if the massive abdominal pannus is lifted up and held out of the way
Wound drains
Unless there has been exceptional oozing from a very deep abdominal wound, there is no necessity for drains. Infection of the pelvis should always be drained through a separate abdominal stab wound.
Skin closure
There are many techniques of skin closure varying from metal clips through silk to stainless steel. In the editor’s experience closure should be by interrupted and not by a continuous method (Fig. 6.9b). This allows any serous or bloody ooze to drain from the wound. The materials which produce least skin reaction and scar­ring are monofilament materials such as nylon or, more ideally, stainless steel staples in a preloaded stapling de­vice (Fig. 6.10). It is the editor’s experience that subcu­ticular techniques, using absorbable sutures, produce a
OPENING AND CLOSING THE ABDOMEN
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(b)
Fig. 6.9 (a) The fat stitch and skin closure; (b) the fat stitch with interrupted stitches.
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(a)
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Fig. 6.10 Stapling the abdominal skin.
Fig. 6.11 Deep tension sutures.
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The incision
It is extremely important that the initial skin incision is level and symmetrical. A skewed scar after this incision is less acceptable than after any other. The landmarks of the symphysis and the anterior superior iliac spines must be accessible and not covered by drapes. The drapes must be accurately and evenly placed so as not to mislead the surgeon. The incision should be approxi­mately 12 cm long for a hysterectomy, shorter for more minor procedures. The initial cut is made cleanly through the skin, slightly convex towards the pubis (Fig. 6.13). The fat is incised down to the rectus sheath and the aponeurosis of the external oblique muscle. As the incision is completed, the surgeon should make short cuts into the sheath on either side of the mid-line. Small vessels in the fat are more numerous than in the mid-line incision and must be clipped and tied or diathermied. In particular, a large vein at each lateral edges of the incision are often seen and should be incised and tied unless they can be gently pushed on one side. The techniques of tearing the fatty layers have been advocated and although functionally satisfactory, they are not aesthetically so.
by large Lane’s forceps, access to the abdomen is often amazingly easy.
The incision is not advocated for extreme emergency situations as it takes significantly longer to enter the abdomen using this technique. The incision is also more vascular than the mid-line alternative.
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Fig. 6.12 The mass closure technique.
Fig. 6.13 The Pfannenstiel
incision.
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Fat stitch
This is particularly useful in this incision as Scarpa’s fascia is well developed and easily defined. All sub­cuticular space should be obliterated if possible since this vascular incision has a significant risk of haematoma formation.
Wound drains
It is the editor’s impression that the transverse incision requires drainage more frequently than the mid-line. However, this is not a significant disadvantage and the use of wound drains should not be regarded as a mark of failure. If there is evidence of more oozing than usual, and this may occur particularly after multiple entries in the same site, the surgeon is well advised to utilize the drainage procedure. As soon as drainage has ceased, often within 24 h, the drain can be removed without great discomfort to the patient, and without any residual scarring.
Further reading
Te Linde RW, Mattingly RF. Operative Gynaecology, 4th edn.
Philadelphia: Lippincot, 1970. This is one of the great stan­dard textbooks of gynaecological surgery with excellent descriptions of the methods of entering and closing the abdomen.
Joel-Cohen S. Abdominal and Vaginal Hysterectomy, 2nd edn.
London: William Heinemann, 1977. This covers the various techniques in full and is a mine of useful information.
Incision of the aponeurosis
The short incisions in the rectus sheath are now extend­ed for the full length of the skin incision using either a scalpel or the Bonney’s dissecting scissors. The upper and then the lower edges of the incision are now grasped in turn by small artery forceps, elevated and the underlying muscle separated from the sheath by a com­bination of blunt (swab) and sharp (scissors) dissection (Fig. 6.14). Small vessels running parallel to the mid­line are clipped and tied. The rectus muscles are now separated vertically and the peritoneum visualized.
Opening the peritoneum
This is performed in the same manner as for the mid­line incision, keeping a watchful eye on the upper limits of the bladder. It is usually easy to see the upper limit of the bladder by identifying urachus as it appears as a narrow fibrous band in the mid-line. Grasping the urachus and incising it is a simple way of entering the peritoneal cavity.
Closure of the abdomen
Closing the abdomen
This is carried out as in the mid-line incision, using a continuous absorbable suture material for the peri­toneum and sheath. It is superfluous to suture the rectus muscles together as the design of the wound gives ade­quate strength.
Fig. 6.14 Dissecting the rectus sheath.
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and Ellis, published by Baillière Tindall, London, Professor Harold Ellis reviews the many factors which a surgeon must take into account when making and closing an abdominal wound (pp. 124–42).
We also recommed the readers to review chapter 9 in the
Atlas of Pelvic Surgery by C.R. Wheeless, published by Williams & Wilkins, 3rd edition, 1997.
For the student who feels that a study of potential problems
is essential, the editor would recommend the early sections in the text Complications of Surgery in General by J.A.R. Smith (1984), published by Baillière Tindall, London. The author extensively discusses the various techniques of opening and closing the abdomen, listing all the advantages and disadvan­tages of each approach.
In the text Wound Healing for Surgeons (1984) by Bucknall
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reviewed and preplanned in preadmission clinics, which reduce the preoperative admission times significantly.
It is essential that the patient fully understands the scope of the surgery intended, particularly in relation­ship to the removal or preservation of the ovaries. Occasionally, fashions concerning preservation or removal of the cervix will appear. The patient must be quite clear as to the extent of any surgery.
Preadmission clinics and early admission will be an opportunity to go through the procedure with the pa­tient. The blood should be taken for a full blood count, grouping of the blood type and the preservation of the sample in case a transfusion is required. Transfusion for most hysterectomies is rarely required. Patients will be reviewed and consented by the anaesthetist and any extra investigations organized.
It remains traditional to shave the abdomen for an abdominal procedure; in the author’s view this is only necessary for the visible part of the pubic hair. The traditional ‘through and through’ technique is unnecessary. Conversely, for a vaginal hysterectomy, only the pubic area needs shaving. It is important to perform any shaving as close to surgery as practicable. It is also unnecessary and potentially dangerous to over clean the abdominal wall with antiseptics as recolo­nization with more malign bacteria may occur prior to surgery.
The balance between late admission and reducing preoperative tension is a fine one. A good night of sleep before operation is advantageous and this may best be achieved in the patient’s own bed. Some patients may require sedation prior to surgery others will not.
Total abdominal hysterectomy
7
It is interesting that Bonney used the more correct title for this chapter of ‘Abdominal total hysterectomy’; the current editor has changed to the present form so that the accepted abbreviation of TAH is consistent. This operation remains the accepted basic procedure for removing the uterus in the management of benign disease; it is also used in oncological care for the management of cervical intraepithelial neoplasia (CIN), cancer of the corpus uteri and ovary.
Once a decision to perform a hysterectomy has been made, the surgeon must decide and recommend to the patient the most appropriate route. The choices avail­able currently include abdominal, vaginal, laparoscop­ically assisted vaginal and subtotal. Various forms of total laparoscopic hysterectomy are rarely indicated or performed. The factors determining the choice are discussed in Chapter 8.
The technique described here is inevitably a melange of many influences upon the author, not least previous editions of this book.
Instruments
The gynaecological general set described in Chapter 2 is used.
Patient preparation
The patient is usually admitted as close to surgery as possible; when the operation is planned for the morning, the day before is the usual admission time. If an afternoon list is planned, the morning of opera­tion is most appropriate. Increasingly patients are
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Once the course of the ureter has been identified, the index finger of the left hand can be used to elevate the infundibulopelvic ligament allowing a clamp to be placed either on the medial or the lateral side of the ovary dependent on whether these structures are to be preserved or removed (Fig. 7.2). If the ovaries are to be removed they can be moved medially on the index finger and a clamp applied directly to the vessels within the infundibulopelvic ligament. If the ovaries are to be preserved, the clamp is simply placed on the medial side of the ovary and the tube and ovarian ligament are cut.
Ligation of the round and infundibulopelvic ligaments
It is useful to ligate these ligaments at an early stage in the procedure to leave the operative field as clear as pos­sible. The pedicles may be stitch ligatured or simply tied, as is authors’ practice. The round ligament tie can be ‘left long’ and attached to a small Spencer Wells clip, thus maintaining tension on the peritoneum
The operation
Following general anaesthesia, the vulva and vagina are cleaned and the bladder catheterized and emptied. Usually if the hysterectomy is being performed as the only procedure, and the patient is fit, an indwelling catheter is not necessary. If the procedure is part of the management of, for example, ovarian cancer an indwelling catheter will greatly assist fluid assessment both intraoperatively and postoperatively.
The use of intravaginal dyes or packs is superfluous. Suturing and occlusion of the cervix when dealing with corpus cancer is also quite unnecessary.
The incision
The choice of incision is dealt with in Chapter 6.
Exploration of the abdomen and pelvis
This important preamble is dealt with in Chapter 6.
Clamping and dividing the round and infundibulopelvic ligaments
The uterus is elevated by placing the surgeon’s left hand into the pouch of Douglas and lifting the body of the uterus to put the uterosacral ligaments on the stretch. A medium-sized straight pressure forcep is placed on either side of the cornu to include the origins of the tubes and the round ligament approximately 1 cm from the uterine wall (Fig. 7.1). When the handles of the two clamps are placed together and held in the left hand, the whole uterus can be manoeuvred. When the uterus is elevated, the round ligaments become prominent bands passing anterolaterally behind the peritoneum towards the inguinal ligament. The round ligaments are picked up at roughly their mid points with a medium-sized pressure clamp and then incised on their medial side (Fig. 7.1). This clamp is handed to the assistant thus opening the anterior part of the broad ligament. The soft areolar tissue within the leaves of the broad ligament is now revealed.
The author recommends that at this point the simple manoeuvre of opening up the retroperitoneal space down the point at which the ureter is visible is an important practice which once learned can be applied to virtually all pelvic procedures. This tech­nique allows the ureter to be visualized in the upper pelvic part of its course where it lies close to the in­fundibulopelvic ligament, a site of all too frequent clamping of the ureter.
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Fig. 7.1 Cutting the round ligaments.
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noeuvre will vary; the authors’ preferred choice is to use the relatively blunt closed tips of the Monaghan scis­sors to gently push and occasionally incise the tissues attaching the bladder to the uterus. If the surgeon be­gins close to the mid-line and gently separates, staying close to the uterus and the cervix, a clean plane will be identified. A thin gauze swab over the finger may be used to push the angles of the bladder away from the cervix if preferred (Fig. 7.4). This entire process is assisted by the surgeon maintaining tension of the uterus by gently drawing it upwards using the clamps originally placed close to the cornu.
The lower limit of the cervix can be readily identified by observing the indentation as the cervix ends and the anterior fornix begins. It is important to be sure that the lateral parts of the bladder are adequately reflected as the ureters are very close to the upper vagina at this point. If the patient has had a previous lower segment caesarean section, the dissection may be more difficult and will require significantly more sharp dissection in order to release the scar tissue; this sharp dissection is in fact less traumatic and fundamentally safer than blunt pushing of the tissues. Close attention should be paid to the tissue plane on the surface of the lower uterus and
laterally and assisting in ‘opening up’ the lateral broad ligament space, providing improved access to the parametrial tissues. NB: a clip should never be left on a pedicle containing a blood vessel such as the infundibulopelvic ligaments.
Reflecting the bladder
It is logical to incise the peritoneum overlying the blad­der along the line of the uterovesical fold at the same time as the round ligaments are divided. With the scissors in the surgeon’s right hand and the assistant elevating the peritoneum over the bladder with Mayo toothed forceps, it is very simple to run the scissors under the tented peritoneum separating the bladder and then to incise the peritoneum in a curved line across the front of the uterus to meet up with the round liga­ment on the opposite side (Fig. 7.3). If the level of inci­sion is too high the peritoneum will not separate from the front of the uterus and if too low bleeding will occur from the small vessels on the surface of the bladder.
Once this incision is complete, the bladder can be gently separated from the anterior surface of the uterus and then the cervix. The technique to achieve this ma-
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Fig. 7.2 Cutting the infundibulopelvic ligament.
Fig. 7.3 Incising the uterovesical fold.
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anterior part at the level of the junction between the corpus and the cervix; the fingers of the left hand press­ing into the posterior fornix will cause the cervix to pro­trude forwards and the position of the anterior fornix becomes more obvious. The effect of this step is to make the application of clamps to the parametrium and the paracervical tissue easier as well as causing the bladder to drop ‘below’ the level of the cervix.
Clamping the uterine vessels and the vaginal angles
The uterine arteries arise from the anterior division of the internal iliac arteries deep in the lateral pelvis at the level of the obturator fossa. They then pass medially, overlying the ureter as it approaches the lateral part of the cervix. The artery divides close to the uterus at the level of the internal os into a descending and an ascend­ing branch. The ascending branch, which is larger, runs close to the lateral sides of the uterus and can be seen as it passes in a tortuous fashion from below upwards feeding small branches into the substance of the uterine corpus. This vessel is clamped by placing a pressure for­cep with the tip abutting onto the myometrium at right angles to the long axis and at roughly the mid point of the length of the uterus (Fig. 7.5). The pedicle is divided as close to the forcep as possible. The same procedure is performed on the opposite side. A further forcep, ideally one with longitudinal ridges such as a Zeppelin,
cervix, as this is the optimal and safest position for any sharp dissection.
Where the uterus is a little immobile it often helps if the surgeon puts the left hand into the pouch of Douglas, bringing the thumb around the uterus to the
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Fig. 7.4 Separating the bladder.
Fig. 7.5 Clamping the uterine artery.
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