Perinatal Journal • Vol: 17, Issue: 2/August 2009 85
Treatment of Viable Cesarean Scar Ectopic
Pregnancy with Combination of Intracardiac
KCI and Systemic Methotrexate: Case Report
Gürkan Yaz›c›, Aysun Savaﬂ, Talat Umut Kutlu Dilek, Saffet Dilek
Mersin Üniversitesi T›p Fakültesi, Kad›n Hastal›klar› ve Do¤um Anabilim Dal›, Mersin, TR
Objective: Succesful pharmacologic treatment of ceserean scar pregnancy was reviewed by recent litereture.
Case: 24 years old G3P2A0 woman who diagnosed as ceserean scar pregnancy was treated by systemic multiple dose of methotrex-
ate following the ultrasound guided intracardiac KCl injection.
Conclusion: Pharmacologic treatment of ceserean scar pregnancy should be combined with intracardiac KCL injection in the pres-
ence of high hCG titer and cardiac activity.
Keywords: Ceserean scar pregnancy, intracardiac KCl, ceserean scar pregnancy, methorexate.
Canl› sezaryen skar gebeli¤inin intrakardiyak KCl ve sistemik metotreksat
kombinasyonu ile tedavisi: olgu sunumu
Amaç: Sezaryen skar gebeli¤inin baﬂar›l› farmakolojik tedavisi literatür eﬂli¤inde gözden geçirilmiﬂtir.
Olgu: Yirmi dört yaﬂ›nda, G3P2A0 olan, 2 kez sezaryen ile do¤um yapm›ﬂ, asemptomatik ve son adet tarihine göre 8 hafta 4 günlük
gebeli¤i olan bir sezaryen skar› gebeli¤i (CSP) olgusunun intrakardiyak potasyum klorür (KCl) enjeksiyonu sonras›, multiple doz
metotreksat kemoterapisi ile tedavisi edilmiﬂtir.
Sonuç: Yüksek hCG titreleri olan veya kardiyak aktivitenin izlendi¤i sezaryen skar gebeliklerinin farmakolojik tedavisi intrakardiyak KCl
ile kombine edilmelidir.
Anahtar Sözcükler: Sezaryen skar gebeli¤i, intrakardiyak KCl, sistemik metotreksat.
Introduction and one ectopic pregnancy.1,2 Data for CSP is
mostly based on case presentations and anecto-
Pregnancy implanted to cesarean scar (CSP)
dal information since it is rare. Therefore, there
is a rare form of ectopic pregnancy. In a series of
is no clinical method agreed for its diagnosis
12 cases, Jurkovic et al.1 reported approximate and treatment. In this article, the literature is
CSP incidence in all pregnancies as 1:2226, CSP reviewed by presenting CSP case successfully
rate as 0.15% in women who had cesarean and treated with multiple dose methotroxate
6.1% in women who had at least one cesarean chemotherapy after intracardiac KCl injection.
Correspondence: Gürkan Yaz›c›, Mersin Üniversitesi T›p Fakültesi, Kad›n Hastal›klar› ve Do¤um Anabilim Dal›, Mersin
86 Yaz›c› G et al. Treatment of Viable Cesarean Scar Ectopic Pregnancy with Combination of Intracardiac KCI and
Case Intracardiac KCl was applied to the patient
by means of 20 gauge spinal needle accompa-
Twenty-four years-old female patient with
nied with ultrasonography and it was observed
gravida 3, para 2, abortus 0 and O Rh (-) blood
that cardiac pulse was gone. After the process,
type referred to our clinic with cervical preg-
anti-D immunoglobulin prophylaxis was
nancy on 8th week and 4th day of her pregnan-
applied to the patient and multiple dose sys-
cy according to her last menstrual period.
temic methotrexate protocol was initiated. 1
Patient had no complaint when applied. It was
mg/kg intramuscular methotrexate at 1st, 3rd,
learnt from the history of patient that she had a
5th and 7th days, and 0.1 mk/kg intramuscular
cesarean in her first delivery due to rectal pre-
folinic acid at 2nd, 4th, 6th and 8th days were
sentation four years ago and her second deliv- applied to the patient. No complication was
ery was done by cesarean 10 months ago. Serum observed in the patient during treatment.
Beta-hCG value was 62316 mIU/ml. In the trans- Beginning from the second day of treatment,
vaginal ultrasonography (TVUSG) performed, it the patient had vaginal bleeding for three days.
was observed that there was a gestational sac Serum Beta-hCG value was measured as 44174
with 42x33 mm diameter and an embryo inside mlU/ml on the last day of chemotherapy while
with heart beat just over internal os. The patient it was 70074 mlU/ml on the day when treat-
was diagnosed as CSP since cervical canal and ment began. Serum Beta-hCG value which
uterine cavity were empty, gestational sac at decreased gradually later was reset at sixth
sagittal section developed from anterior of uter- week after chemotherapy and no progression
ine isthmus, anterior uterine wall did not show was observed in next follow-ups (Diagram 1).
continuity and myometrium got thin between At first week after chemotherapy, the gestation-
bladder and sac (Figs. 1 and 2). al sac became a 14x10 mm area including par-
Figure 1. In transvaginal examination, it is seen that cervical canal and uterine cavity are
empty and gestational sac locates at lower segment.
Perinatal Journal • Vol: 17, Issue: 2/August 2009 87
tially cystic and solid areas and it disappeared at as well as traumas of other uterine surgeries
the end of third week. such as cesarean, dilatation & curettage,
myomectomy, metroplasty, hysteroscopy etc.
Discussion Increased risk factors for CSP are the perfor-
mance of cesarean due to rectal presentation,
Cesarean scar pregnancy was first reported
providing two or more cesareans, dilatation /
in 1978. There are totally 161 cases reported in
English medical literature between January 1966 curettage, ectopic pregnancy, existence of pla-
and October 2006 and actual incidence of CSP is cental pathologies, providing pregnancy by in
unknown since few cases are reported in the lit- vitro fertilization, and the shortness of period
erature. While CSP incidence has been increas- between previous cesarean and pregnancy
ing in recent years due to the increase in cesare- development.2,3 When cases were evaluated,
an deliveries, its successful treatment seems pos- ages increased as cesarean increases and mean
sible by conservative methods without requir- ages of patients were 33.4±5.7.4 Gestational
ing surgical operations like hysterectomy since week at diagnosis was found as 5-12 weeks
early diagnosis by transvaginal monitoring in (mean 7.5±2.5) and 4 days, and the period
early gestational weeks is more prevalent.1 between last cesarean and cesarean scar was 6-
The most accepted theory among all theo- 12 months.1,2 As in many cases reported in the
ries defined for CPS development phys- literature, the period between first cesarean
iopathology is the implantation of blastocyst indication, rectal presentation and previous
into the microscopic separation area on cesarean and cesarean scar pregnancy was 10
myometrium. Microscopic separation area may months in our case. Gestational age of our case
arise due to removing placenta by hand (hallas) was 8 weeks and 4 days.
Figure 2. In transvaginal examination, it is seen that myometrium gets thin and the sac
protrudes towards bladder.
88 Yaz›c› G et al. Treatment of Viable Cesarean Scar Ectopic Pregnancy with Combination of Intracardiac KCI and
Serum hCG levels (mIU/ml)
Diagram 1. hCG titer progress after systemic methotrexate treatment.
It should be remembered that an important There is no algorithm agreed upon for the
number of cases (36.8%) like our case may have treatment like in CSP diagnosis. However, dur-
asymptomatic progress while there is painless ing advanced gestational weeks, ending preg-
vaginal bleeding in many cases (38.6%). Vaginal nancy on first trimester is advised by many
bleeding together with abdominal pain (15.8%) researchers due to the increase in development
and only abdominal pain (8.8%) are other risk of complications threatening life in later
important clinical indicators.4 weeks of pregnancy such as massive bleeding
The sensitivity of using transvaginal ultra- and uterine rupture. Conservative medical treat-
sonogprahy in CSP is 84.6% and it is frequently ment, local injection treatments, surgical sac
confused with cervical pregnancy, cervico-isth- aspiration, dilatation curettage (D&C), surgical
mic pregnancy, advanced spontaneous abortus treatments and their various combinations are
and incomplete abortus.4 Sonographic diagno- among current treatment options.2
sis criteria of CSP are: (i) empty uterine cavity; The agent frequently used in medical treat-
(ii) empty cervical canal; (iii) dilution or discon- ment is methotrexate and it can be used in sin-
tinuity of anterior uterine wall on sagittal uterus gle or multiple dose protocols. Methotrexate,
section where amniotic sac is shown, and (iv) KCl, hyperosmolar glucose and crystallized tri-
development of gestational sac from uterine cosantin are used in the local injection treat-
isthmus and the existence of myometrial layer ment. While dilatation and curettage can be per-
thinned between bladder and sac.2 Color formed alone, they can also be combined with
Doppler ultrasonography, three-dimensional medical treatments and local injection treat-
ultrasonography, three-dimensional power ments. The possibility of remaining rest tissue
Doppler ultrasonography and magnetic reso- which may require systemic methotrexate use
nance monitoring are other methods that may after dilatation and curettage, and massive
be used in diagnosis. bleeding risk that may proceed up to hysterec-
Perinatal Journal • Vol: 17, Issue: 2/August 2009 89
tomy should be remembered. Most of the References
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Treatment of viable ceserean scar pregnancy with suc-
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