OBJECTIVE: To evaluate the effect of the new Intrastromal abdominal
hysterectomy as a bloodless nerve-sparing method without
disturbing the pelvic support system, versus the conventional
abdominal hysterectomy. Additionally, to evaluate this method
as an alternative procedure to prevent blood loss and enable
a shorter hospital stay with fewer complications.
01. No Risk for ureter
injury
02. Reduced operating time and bleeding than total
hysterectomy
03. Preserves the support ligaments of the cervix and
vagina.
04. Preserves the neuro-vascular
supply in cardinal and utero-sacral ligaments
05.Faster
cervical headling in 3 weeks, compared 6-8 weeks for
vaginal cuff healing
06. No
risk for vaginal cuff abscess, hematoma, distortion
and prolapse
07. Faster recovery than total hysterectomy
06.
No
Cyclic (menstrual) bleeding, as with some subtotal
hysterectomy.
07. No risk for cervical cancer, dysplasia, cervicitis
compared to subtotal hysterectomy
METHODS: The hysterectomy can be performed using the following
techniques ? conventional, abdominal, vaginal, or laparoscopic
assisted vaginal hysterectomy, intrafascial, extrafascial,
and lastly the supracervical hysterectomy. The supracervical
hysterectomy has been criticized in medical literature due
to the number of patients developing cancer in the cervical
stump that may lead to fatality. Moreover, it is important
to acknowledge that the supercervical hysterectomy is expensive,
which is to be attributed to the cost incurred as a result
of the preventive measures considered for cancer.
The new intrastromal T.A.H. keeps the cardinal, utereosacral
ligament, and vaginal apex unsevered. In the meantime, the
entire cervix's endocervical canal and the T-zone with uterus
are removed, whereas the bed and the pericervical stroma
remain. In the outer stroma of the cervix is a pericervical
bed, and the cervix is removed from this bed. RESULTS: There were differences in the average blood loss (
hemoglobin
1.0 versus 1.4 g/dl, P0.00l), and the average hospital stay
(2.7 days versus 3.15 days, P=0.005) was in favor of the
study group. There were no post-operation infections, ureter
injuries, vaginal vault prolapses, and no post-hysterectomy
fistula were seen.
CONCLUSION: Intrastromal Abdominal Hysterectomy is a bloodless,
nerve-sparing technique that does not disturb the pelvic
support system. It also proves to be an effective alternative
to the traditional hysterectomy, with advantages such as
reduced blood loss, shorter hospital stay, and less frequent
post-operation complications. Throughout this process, it
is imperative that the patient's fear cervical cancer should
not be ignored.
INTRODUCTION: Historically, Langen Beck performed the first abdominal
hysterectomy in 1825. Porro first performed the subtotal
casarean hysterectomy successfully in 1876, where Wertheim
perfbrmed his first abdominal hysterectomy in 1898. Vaginal
hysterectomy was performed more than 250 years prior to
the first abdominal hysterectomy. Seventy percent (70%)
of hysterectomies today are abdominal[4] and thirty percent
(30%) are vaginal. In traditional hysterectomies, most surgeons
remove the uterus by cutting the uterosacral ligaments,
the cardinal ligament of Mackenrodt, and the uterine vessels
prior to entering the vaginal fornix[2,5] In this procedure,
significant damage occurs to nerves in Franken Hauser's
nerve plexus, the vesical plexus, and other downstream nerves.
Additionally, the fibrous condensation in the endopelvic
fascia are severed and no longer support the vaginal vault[5,6].
Based upon these observations, a prospective randomized
trial was conducted to evaluate the extent of the effectiveness
of Intrastromal Abdominal Hysterectomy[22,24] to alleviate
the traditional concern about possible interference with
sexual or bladder function postoperatively [7,12,15] as
well as blood loss and length of hospital stay.
MATERIALS AND METHOD: A total of forty (40) women were placed in this prospectively
randomized clinical trial of a new Intrastromal Abdominal
Hysterectomy procedure performed in the Department of Obstetrics
and Gynecology at Fountain Valley Regional Hospital and
Huntington Beach Medical Center. An informed consent was
obtained from the participants after a detailed explanation
was provided to them.
The average age of the participating women was 50.6 years.
Patients were randomized into two groups ? the study group
and the control group. In the study group (n=20), Intrastromal
Abdominal Hysterectomy was performed, and in the control
group (n=20), a conventional hysterectomy was performed.
All operations in the study were performed by one surgeon
in order to minimize any bias due to differences in surgical
technique and style.
Indications for hysterectomy were chronic pelvic pain, uterine
intramural or submucosal liomyoma, anemia, and pelvic endometriosis[9,11]
Prior to the surgery, all participants provided us with
informed consent, as well as each an agreement to have an
annual check-up. Then Intrastromal Abdominal Hysterectomy
was performed in the following manner: the patient's position
on the operating table must be wide gynecology position
and the legs were placed in Allen stirrups. The patient's
perineum was four to six inches below the edge of the table.
The patient was draped to allow access to the vaginal introitus.
The majority of times, a low transverse, and sometimes midline
incision, was made.
Any surgical scar could be removed at that time. After the
abdominal cavity was entered, the examination and palpation
were carried out, and the bowel was packed away. The round
ligaments were severed on both sides about two cm. away
from the carneal end of the uterus. These severed ends were
then ligated and, at the same time, this opened the broad
ligaments so that an anterior vesical flap of peritoneum
could be formed. If the adnexae were to remain, an avascular
area was found in the broad ligament close to the uterus.
This was entered with either a finger or a curved clamp.
The tube and the ovarian ligament were clamped, severed
and suture ligated, if the ovaries were to be removed, the
infundibulo pelvic ligament was clamped, severed, and suture
ligated from the side of the uterus.
To perform the new technique, adequate vaso constrictive solution
must be injected into the peripheral portion of the cervix,
until ischmia in this area is observed. The cervical stroma
was then entered from the peripheral portion of the cervico
uterine junction, using a Thermo electric or Laser knife
(Fig. 1). Dissection must be executed in a circular fashion.
The peripheral portion of the cervix or cervical bed must
be protected[9] because the ligamentous support system and
the nerves are fused to the outer portion of the cervix
(Fig 2). Our endocervical guider helps to identify the anatomy,
at the time the incision is carried into the vagina A purse
string-type suture is used to draw the remaining stroma
together, and assists in hemostatsis. The repair of any
defect should start from the surgical margin of fornix,
toward the abdominal side (Fig. 3). Any active bleeding
must be controlled. The rest of the closing defect must
be sutured using the Kisner or Garcia technique. During
closure, the round ligaments are anchored to the middle
of the vault. The raw surfaces are carefully peritonealized.
The outer stroma of the cervix is like a bed, and the cervix
is removed from this bed.
In the control group, conventional abdominal hysterectomy was
performed. In this procedure, most surgeons removed the
uterus by cutting the uterosacral ligaments, the cardinal
ligament of Mackenrodt, and the uterine vessel prior to
entering the vaginal fomix[2,5,7]. The uterus was then severed
from the vagina in a circular fashion at the cervico-vaginal
junction[2,5,15]. To access this area, the bladder was either
pushed down or dissected free of its attachments. In this
procedure, significant damage occurs to nerves in the Franken
Hauser's nerve plexus, the vesical plexus, and other downstream
nerves [21,22,23,] Additionally, the fibrous condensation
in the endopelvic fascia was severed and no longer supported
the vaginal vault.
The following parameters were evaluated: Preoperative and postoperative
hemoglobin, hospital days, febrile morbidity, wound healing,
and readmission to the hospital due to ureter injury, vaginal
prolapse, or post-hysterectomy fistula.
RESULTS:
There are significant differences in favor of the study
group (as shown in Table I). Although patients in the study
group were older on the average (57.9 years of age), they
recovered more quickly than the patients in the control
group, who were younger on the average (49.3 years of age).
Analyzing the hemoglobin data in Table I clearly indicates
that less blood was lost in the study group. The data of
the pre-hysterectomy control group, when compared with the
data of post-hysterectomy group, showed a loss of 1.4 gldl
(11.38%) hemoglobin, but data obtained from the study group
showed a loss of 1 g/dl (8%) hemoglobin, P0.OOl. Moreover,
there was also a significant difference in the number of
hospitalization days. On average, the patients in the control
group required longer hospitalization (3.15 days) than those
patients in the study group (2.7 days versus 3.15 days,
P=0.005).
In the United States, 600,000 hysterectomies are performed
each year[20]. In Table II, we have attempted to extrapolate
this data, and show the impact on a national level. The
total amount of hemoglobin loss between the study group
and the control group is 6.9 gldl. Assuming the new technique
was performed for all hysterectomies performed in the United
States during the year, blood loss would be decreased by
approximately 207,000 units. Similarly, the total number
of hospitalization days saved as a result of the new technique
would be 270,000 days, as shown in Table II.
Table I - Study
Data*
Study
Group (n=2O)
Control
Group (n=20)
Patient Age (y)
52 (41
to 74)
49.3
(43 to 64)
Hemoglobin (g/dl)
1.0 (0.1
to 2.4)
1.4 (0.4
to 4.6)
Hospital Stay (days)
2.7 (2
to 3)
3.15
(2to 5)
Patient Weight (lbs.)
177 (117
to 238)
156 (107
to 205)
* Values are given in average
and range.
Table II - Extrapolated
Results*
Extrapolated
Result
- 600,000
Hysterectomies Per Year
Total Loss
Study Group (n=20)
Control Group (n=20)
Prevented
Total Hemoglobin (d/gl)
20.1
27
6.9
27 6.9 207,000 units
Total Hospital Stay
54
63
9
270,000 days
(no. of days saved)
saved
*post-hysterectomy values indicate
differences between study and control group, and extrapolated
to 600,000 hysterectomies performed annually in the United
States.
DISCUSSION: There are some reports in the literature that women who
undergo conventional hysterectomy are at a sixty percent (60%)
greater risk of developing urinary incontinence later in life
than those who have not had the procedure[6,7,18]. It is important
to note that the uterosacral and cardinal ligaments support
the uterus and the cervix laterally and posteriorly, respectively,
and provide direct and indirect supports to the bladder and
urethra through these attachments. The primary function of
these suspensory mechanisms is to support the upper urethra
and urethrovesical junction[9]. Meanwhile, the fascia of the
bladder and the anterior vaginal wall fuse to form the pubocervical
fascia. At the level of the bladder neck and proximal urethra,
and at the level of the bladder and the fuscial ring of the
cervix, these two fascia are densely adherent. Along the base
of the bladder, vesicovaginal space can be developed between
these two fascial planes.
The pubocervical fascia prevents herniation of the bladder
and urethra into the vagina[19]. The procedure may lead to
chronic or progressive damage of the pelvic nervous system,
or pelvic supportive structure that results in incontinence
years later sometimes can have a negative impact on their
sexuality. Cutting the vaginal apex disturbs the vaginal nerves
function[2,5]. The Intrastromal Abdominal Hysterectomy procedure
is proposed as an alternative to those patients concerned
with sexual and bladder dysfunction. During the procedure,
neither the cardinal ligaments nor the uterosacral ligaments
are severed, thus avoiding injury to the Franken Hauser's
nerve plexus[2,8,9]. Note that the outer stroma of the cervix
is pericervical bed, and the cervix is removed from this bed.
This method is helpful for the prevention of future cervical
cancer. The pathological specimen and report confirmed the
endocervical, and the exocervic was removed along with the
uterus. To refresh your memory, supracervical hysterectomy[3,8]
provide no protection against cervical cancer.
According to medical literature, supracervical hysterectomy
is costly[20,25,26] and has a negative financial impact on
the health care system. it is hoped the new hysterectomy will
result in fewer postoperative problems relating to urinary
function, sexual function, blood loss, and ureteric injury.
The reduced trauma described is very consistent with the surgical
principle of keeping dissection and, therefore, injury to
a minimum. This technique and research is related to the abdominal
method however other techniques have limitations[10,13,14]
and cannot be used for all patients. Abdominal hysterectomy
can be used for all patients. Specialized training is required
to perform this technique.