Ultrasound Diagnosis and Laparoscopic Excision of an Interstitial Ectopic Pregnancy

Interstitial tubal pregnancy occurs in about 5% of ectopic tubal pregnancies and is associated with an increased risk of severe haemorrhage (1). Diagnosis prior to rupture of the pregnancy into the peritoneal cavity is very important to avoid haemorrhage. Its presence has been considered to be a contraindication to laparoscopic surgery (2), although most ectopic pregnancies can be managed laparoscopically by an experienced endoscopist. We report the diagnosis of an interstitial pregnancy by ultrasound before rupture and treatment by laparoscopic excision of the pregnancy.     

Nonsurgical Management of Interstitial Pregnancies: Feasibility and Predictors of Treatment Failure

Study ObjectivesTo describe the management of interstitial pregnancies in a tertiary medical center, identify factors associated with treatment failure, and report subsequent pregnancy outcome.DesignRetrospective cohort study.SettingDepartment of Gynecology in a tertiary medical center.PatientsAll women who were admitted to and treated for interstitial pregnancy at our center between 2011 and 2019.InterventionsThe women were originally assigned to undergo expectant, medical, or surgical treatment. The women's background and clinical data were compared according to initial treatment modality. Nonsurgical (expectant and medical) management outcomes were analyzed to identify risk factors for treatment failure. Subsequent pregnancy outcomes were described separately.Measurement and Main ResultsThirty-seven cases of interstitial pregnancy were identified. There were high rates of pregnancy achieved by in vitro fertilization (45.9%) and a history of ipsilateral salpingectomy (43.2%) among these patients. At presentation, the mean age of the study cohort was 34.76 years, and the median β-human chorionic gonadotropin level was 3853.0, and median gestational age was 7.0, respectively. The nonsurgical management success rate was 70.0%. Uterine rupture occurred during treatment in 5 cases (16.6%). Gestational sac diameter significantly affected treatment failure (p = .03), and a diameter >20 mm was observed in all cases of failed non-surgical treatment. Data on future fertility was available for 21 (58.3%) women: 13 (61.9%) had a subsequent pregnancy, 1 of which was a recurrent interstitial pregnancy. The median interpregnancy interval was 8.1 months, and all but 3 pregnancies reached third trimester and resulted in a live birth, with an overall cesarean delivery rate of 61.5%. None of the subsequent pregnancies were complicated by uterine rupture, and no serious adverse outcomes were noted in any of the subsequent intrauterine pregnancies that reached third trimester.ConclusionSuccessful nonsurgical management of an interstitial pregnancy is feasible, although appropriate selection of cases is advised. A large gestational sac is a risk factor for treatment failure and should prompt surgical intervention. Subsequent pregnancies can generally be considered safe and with a favorable outcome.     

CO2 Laser Laparoscopic Salpingotomy for Treatment of Tubal Ectopic Pregnancies: Potential Limitations

Linear salpingotomy was performed on 16 patients using the CO2 laser laparoscopically directed. Median operating time was 60 minutes (range 40-100) and all patients were discharged on the first postoperative day. There were 4 patients in whom persistence of trophoblast activity was detected, 2 of whom were treated surgically and 2 by oral methotrexate therapy. Conservative techniques for the treatment of ectopic pregnancy have proliferated since 1953 being made possible because of the early presentation of patients and the more sensitive methods of intrauterine pregnancy detection. In the past decade laser technology has been added to the armamentarium of infertility surgeons and there have been 2 reports of its successful use in cases of ectopic pregnancy. The present study aimed to examine the application of this technique in our patient population and to investigate any associated problems.     

CO2 Laser Laparoscopic Salpingotomy for Treatment of Tubal Ectopic Pregnancies: Potential Limitations

Linear salpingotomy was performed on 16 patients using the CO2 laser laparoscopically directed. Median operating time was 60 minutes (range 40-100) and all patients were discharged on the first postoperative day. There were 4 patients in whom persistence of trophoblast activity was detected, 2 of whom were treated surgically and 2 by oral methotrexate therapy.     

A Purse-String Approach to Laparoscopic Cornuotomy for Interstitial Ectopic Pregnancy

An interstitial ectopic refers to the implantation of a pregnancy in the proximal fallopian tube where it passes through the myometrium. This type of ectopic pregnancy presents a distinct surgical challenge, as it often presents with rupture and carries a significant risk of hemorrhage at resection. This video demonstrates a four-step approach to the resection of an interstitial ectopic pregnancy with laparoscopic cornuotomy. This approach includes (1) isolating the pregnancy by performing a salpingectomy and identifying the utero-ovarian ligament; (2) ensuring hemostasis with the injection of vasopressin, followed by application of the purse string suture around the pregnancy at its equatorial line; (3) performing the resection using a linear incision; and (4) repairing the uterine defect with layered closure. The purse-string suture is shown to be a useful tool in minimizing bleeding, and this sequential approach allows for interstitial ectopic pregnancies to be excised with a minimally invasive cornuotomy, even in cases of significant anatomical distortion.     

Interstitial and Cornual Ectopic Pregnancy: Conservative Surgical and Medical Management

Background

Interstitial and cornual ectopic pregnancy is rare, accounting for 2–4% of ectopic pregnancies and remains the most difficult type of ectopic pregnancy to diagnose due to low sensitivity and specificity of symptoms and imaging. The classic triad of ectopic pregnancy—abdominal pain, amenorrhea and vaginal bleeding—occurs in less than 40% of patients. The site of implantation in the intrauterine portion of fallopian tube and invasion through the uterine wall make this pregnancy difficult to differentiate from an intrauterine pregnancy on ultrasound. The high mortality in this type of pregnancy is partially due to delay in diagnosis as well as the speed of hemorrhage.

Methods

Three cases of interstitial pregnancy were retrospectively analyzed.

Result

Successful laparoscopic cornuostomy and removal of products of conception were performed in two cases, while one case was successfully managed by local injection with KCL and methotrexate followed by systemic methotrexate.

Conclusion

Early diagnosis and timely management are key to the management of interstitial and cornual ectopic pregnancy. With expertise in ultrasound imaging and advances in laparoscopic skills progressively, conservative medical and surgical measures are being used to treat interstitial and cornual ectopic pregnancy successfully.

     

Laparoscopic Cornuectomy as a Technique for Removal of Essure Microinserts

Study Objective

The authors present a laparoscopic technique for complete removal of Essure microinserts (including nitinol coil and positron emission tomography fibers).

Retrospective Study on Laparoscopic Management of Ectopic Pregnancy

Purpose

To evaluate various laparoscopic methods for management of tubal ectopic pregnancy and study the incidence of ectopic pregnancy including the incidence of cornual ectopic pregnancy and conversion to laparotomy during laparoscopic procedure.

Methods

A retrospective study was conducted in North Point Hospital, Delhi, on all laparoscopies conducted in 4 years, i.e., from January 2008 to December 2011.

Results

Incidence of ectopic pregnancy was 4.62 % (out of all laparoscopic surgeries over 4 years) and that for cornual pregnancy was 4.65 % (out of all ectopic pregnancies); no laparotomy was done for the management of ectopic pregnancy. The site of ectopic pregnancy in the tubal pregnancy varied, with 76.75 % in the ampullary region, 16.27 % isthumic, 2.33 % fimbrial, and 4.65 % in the cornual region. Salpingectomy was done in 53.5 % cases and 46.5 % of patients underwent a conservative approach in the form of salpingostomy.

Conclusion

The laparoscopic management of ectopic pregnancy is a safe and effective option with greatly reduced morbidity.     

Non-tubal Ectopic Pregnancies: Overview and Treatment via Local Injection

Ectopic pregnancies account for 1.5% to 2% of all pregnancy in the United States. Of these, approximately 10% implant in nontubal locations, including the abdominal cavity, cervix, ovary, interstitial portion of the fallopian tube, broad ligament, the uterine cornua, or within a cesarean section scar. Because these pregnancies tend to present later than typical tubal pregnancies, they have been associated with greater maternal morbidity and mortality. Advances in ultrasound technology have allowed for earlier diagnosis of nontubal ectopic pregnancies, which in turn has led to the development of novel minimally invasive techniques to manage them. One of these methods involves the local injection of 1 of several agents directly into the ectopic pregnancy. In this article we provide a guide to this technique of local injection, including an overview of the potential agents that can be used, and review the diagnostic and specific ultrasound criteria, other possible treatment options, and overall outcomes for nontubal ectopic pregnancies.     

Interstitial Ectopic Pregnancy—Management with Laparoscopically-guided Local Methotrexate Infiltration

EDITORIAL COMMENT: This issue of the journal contains 2 case reports of interstitial ectopic pregnancies, both treated by injection of methotrexate, by intramuscular injection in one case, and by laparoscopically-guided injection into the ectopic pregnancy mass in the other. The methods were not equally successful. Parker and colleagues reviewed the published data and concluded that single-dose intramuscular methotrexate for treatment of ectopic pregnancy is associated with a high failure rate, and serious complications have occurred (11). The authors of this report advocate the use of laparoscopically-guided local methotrexate infiltration. The selection of which cases of ectopic pregnancy warrant this regimen is not yet established in the editor's opinion. Ironically one of the reviewers of this case report, selected because of his known experience with ultrasonographically-guided direct local methotrexate injection into early tubal ectopic pregnancies, stated that, because of the risk of causing haemorrhage, that he had preferred methotrexate by intramuscular injection in 2 women with interstitial ectopic pregnancies, who then, at a later date, had excision of the ectopic pregnancies performed laparoscopically.
Summary: This case describes the use of ultrasound to diagnose an interstitial ectopic pregnancy and the subsequent management and ultrasound follow-up. Interstitial pregnancy is a rare but potentially life-threatening complication of pregnancy. Management options depend upon the timing of diagnosis, and the desire for maintenance of fertility. Methotrexate injection, under ultrasonographic or laparoscopic guidance, seems to be the management of choice when the ectopic is diagnosed at an early stage.     

Laparoscopic Management of Partial Molar Caesarean Scar Ectopic Pregnancy

Study ObjectiveTo demonstrate laparoscopic management of a molar scar ectopic pregnancy.DesignStepwise demonstration of the technique with narrated video footage.SettingCesarean scar ectopic pregnancy and molar pregnancy are 2 separate extremely rare pathologies with an incidence range from 1/1800 to 1/2500 of all pregnancies for the former [1,2]. The concurrence of both cesarean scar ectopic and molar pregnancy is furthermore exceptionally rare, and there are only 8 reported cases of cesarean scar molar pregnancy in literature till date [3]. There is a high risk of uterine rupture, uncontrolled hemorrhage, hysterectomy, and significant maternal morbidity owing to thin myometrium and fibrous scar after cesarean section [4,5]. Knowledge and awareness about this clinical condition aid in early diagnosis and reduced morbidity. Here, we present a rare case of cesarean scar ectopic pregnancy that was operated for failed medical management and diagnosed to be molar scar ectopic pregnancy intraoperatively.InterventionsTotal laparoscopic approach to molar scar ectopic pregnancy excision involved the following steps, strategies to minimize blood loss, and complete enucleation of tissue: (1) Hysteroscopy to localize the scar ectopic and its type and size (2) Bladder dissection to expose scar (3) Intramyometrial injection of vasopressin (4) Use of harmonic scalpel to delineate the gestational sac (5) Complete evacuation of products of conception (6) Excision of scar tissue (7) Uterine repair in 2 layersConclusionThere are only 8 reported cases of cesarean scar molar pregnancy in literature till date, and all patients had at least 2 previous uterine curettages with abnormally increased β-hCG levels. The clinical manifestations were varied, the most common symptom being vaginal bleeding for a period >1 month, including our case [3]. Considering the limitations of ultrasound, magnetic resonance imaging, and serum hCG levels in the differential diagnosis of molar cesarean scar pregnancy from normal cesarean scar pregnancy, postoperative specimen should be sent for histologic examination [6]. As seen in our case, the possibility of molar pregnancy at cesarean scar ectopic site should be kept in mind in cases with rising β-hCG levels despite continuous medical interventions, which was being medically managed for 3 months. Our case is the first to be successfully managed with laparoscopic surgery as the previously reported cases were managed with suction evacuation, chemotherapy, laparotomy, or hysterectomy [3].