Hemostatic Techniques for Laparoscopic Management of Cornual Pregnancy: Double-Impact Devascularization Technique

Laparoscopic cornual resection for interstitial pregnancy: Staying in the Marginal Zone

Background

Fortunately, interstitial pregnancies are a rare early pregnancy presentation, yet they can be challenging to managed and are associated with a high risk of intra-abdominal haemorrhage. Once detected, surgical laparoscopic resection can be the preferred management method for both patient safety and for definitive treatment.

Objective

The video presents a new technique for laparoscopic resection of an interstitial pregnancy which enables the procedure to be effectively bloodless.

Materials and Methods

We report on a new technique for laparoscopic cornual resection. As shown in the video, staying in the marginal zone may result in the enblock resection of the gestational sac. Using meticulous applications of bipolar energy and cutting with scissors in the marginal zone, the operation may be completed with almost no blood loss and minimal damage to the adjacent healthy myometrium.

Results

The operation lasted 30 min with almost no blood loss. The patient had an uneventful recovery and was discharged on the first postoperative day.

Conclusions

Staying in the marginal zone during dissection permits even less experienced laparoscopists to complete laparoscopic cornual resection with minimal blood loss concomitantly with minimal trauma to the adjacent myometrium.

Vasopressin Injection Purse-String Ectopic Resection technique for laparoscopic management of cornual ectopic pregnancy

Although cornual pregnancy is a rare form of ectopic pregnancy, the associated mortality rate is considerably higher than that of ectopic pregnancy overall. Historically, cornual ectopic pregnancy has been treated via laparotomy. With advancements in technology, equipment, and technique, laparoscopy offers a safer approach for the management of cornual pregnancy. However, laparoscopy of this nature requires excellent technique. The Vasopressin Injection Purse-String Ectopic Resection technique serves as an effective strategy for the laparoscopic management of cornual ectopic pregnancy. First, dilute vasopressin is administered into the myometrium surrounding the pregnancy. Next, a purse-string stitch is placed in the myometrium circumferential to the pregnancy. Finally, the pregnancy is excised by cornual wedge resection, and the defect is repaired using the attached remaining suture from the purse-string stitch. The Figure shows the graphical depiction of the Vasopressin Injection Purse-String Ectopic Resection technique, and the Video shows a laparoscopic recording of the Vasopressin Injection Purse-String Ectopic Resection technique. Between 2012 and 2022, 17 patients underwent a laparoscopic cornual ectopic pregnancy resection at a high-volume academic hospital and its affiliated community hospital. This case series revealed a mean operative time of 107 minutes, with a mean estimated blood loss of 41 mL for nonruptured ectopic pregnancies and 412 mL for ruptured ectopic pregnancies. No case was converted to laparotomy. Our findings suggest that the integration of the vasopressin administration and the pursue-string stitch placement minimizes blood loss and mitigates the risk of conversion to laparotomy for both nonruptured and ruptured cornual ectopic pregnancies.

Interstitial ectopic pregnancy successfully treated with methotrexate

An ectopic pregnancy (EP) occurs when the fertilised ovum implants outside the endometrial cavity. An EP has an incidence of 1%, with the majority occurring in the fallopian tube. It has a maternal mortality of 0.2 per 1000, with about two-thirds of these deaths associated with substandard care. An interstitial pregnancy occurs when the EP implants in the interstitial part of the fallopian tube. An interstitial ectopic pregnancy (IEP) shows few early clinical symptoms, hence it is associated with serious or fatal bleeding and a mortality rate up to 2.5%. With the advent of transvaginal ultrasound scan (TV USS), correlated with serum beta human chorionic gonadotropin (BHCG) assay, earlier diagnosis of an EP can be established. An EP is often diagnosed in women who are trying to conceive; therefore, the prognosis of future fertility is one of the main concerns associated with this diagnosis. Management can be surgical, expectant or medical with methotrexate (MTX). However, the best approach is tailored to the woman's individual case. The authors present the case of a primigravida woman presenting with abdominal pain and vaginal bleeding at 6 weeks gestation following assisted reproduction. Her BHCG showed a suboptimal rise. Her TV USS showed no evidence of an intrauterine pregnancy. There was no evidence of an adnexal mass or free fluid. As her BHCG remained static, she underwent a diagnostic laparoscopy. A right sided IEP was identified. Due to the high risk of bleeding requiring transfusion or hysterectomy and her desire to preserve her fertility, she received medical management with MTX. Indeed, research has shown that women successfully managed expectantly achieve better reproductive outcomes, with the shortest time to achieve a subsequent intrauterine pregnancy. This case acts as a cautionary reminder of the challenges associated with identifying an IEP on TV USS. A high index of clinical suspicion is required to prevent maternal morbidity and mortality.

Use of the Purse-String Suture to Conservatively Manage a Cornual Ectopic Pregnancy

We report the successful management of a 31-year-old female, treated by cornual wedge resection. The patient suffered from vaginal spotting and lower abdominal pain. Transvaginal ultrasonography revealed a 4-5 cm right cornual pregnancy and beta-human chorionic gonadotropin was measured to be 614.7 IU/L. This ectopic pregnancy was removed via a laparotomy with cornual wedge resection and right salpingectomy. 

Laparoscopic reversible occlusion of uterine arteries and cornuostomy for advanced interstitial pregnancy

During laparoscopic enucleation of an interstitial pregnancy, adequate hemostatic control is of paramount importance due to the high vascularization of the uterine cornus. However, no consensus or guidance exists regarding the optimal hemostatic technique. We report laparoscopic reversible uterine arteries occlusion as hemostatic technique during laparoscopic enucleation by cornuostomy of an interstitial pregnancy at advanced gestational age (46 × 40 mm gestational sac). Preliminary identification of the uterine arteries and bilateral reversible occlusion by Hem-o-Lok clips allowed bleeding control during surgery. The laparoscopic procedure was performed without complications and with limited blood loss. The reported case reinforces the feasibility of this minimally invasive technique in interstitial pregnancy.

Partial tubal devascularisation: a novel procedure for tubal conservation in ectopic pregnancy

Ectopic pregnancy is a serious condition that complicates 1-2% of pregnancies. Using surgical management is efficient, but may have an impact on future fertility. Although conservative tubal surgery has not been shown to have a significant advantage over a salpingectomy in terms of the future fertility potential, the conservative surgical techniques remain widely-utilised, particularly in the context of a contralateral diseased or absent tube. We hereby report a case series of a novel procedure to conserve the fallopian tube with the minimal risk of an incisional site bleeding through a partial segmental devascularisation. This technique seems to be an efficient method to minimise the intraoperative bleeding, limit the need for a blood transfusion, and yields a higher success rate of the procedure without jeopardising the blood supply and vitality of the tubes. Impact Statement What is already known on this subject? Conservative surgery has a significant value in women with a contralateral absent or diseased tube. However, a conservative management could be challenging due to the significant bleeding which can be encountered during the surgery. What the results of this study add? The partial devascularisation technique could achieve an adequate haemostasis by blocking the ascending blood supply only to the affected segment of the fallopian tube. What the implications are of these findings for clinical practice and/or further research? A partial devascularisation is a successful conservative surgical treatment option in most patients when the procedure is indicated.

Evidence-based management of non-tubal ectopic pregnancies

Recent advances in ultrasonography and the use of other modalities including magnetic resonance imaging scans have led to the early and more accurate diagnosis of non-tubal ectopic pregnancies (NTE). As a result, the management of these pregnancies has evolved. This article addresses the management options currently available for NTE. While surgical management remains the mainstay of treatment for ovarian, abdominal and cornual ectopics, there is growing evidence that some of these can be managed medically. Many authors have utilised a combination of medical and surgical approaches in the management of cervical and caesarean section (CS) scar ectopic pregnancies with good outcome. The availability of dedicated early pregnancy units has further improved diagnosis and more importantly the follow-up care for these patients. The rarity of cases and the difficulty of ethically organising randomised trials for NTE remain a problem in formulating consistent pathways for optimum management of women with NTE.

Diagnosis and Management of 'Cornual' Pregnancies from 2002 to 2015 at a Tertiary Referral Centre in South India: Insights from Introspection

Purpose

Interstitial, angular and rudimentary horn pregnancies have all been referred to as cornual pregnancies despite definite diagnostic criteria. Angular pregnancies can be followed up expectantly under close surveillance while interstitial and rudimentary horn pregnancies are terminated by medical or surgical methods. This study aimed to assess accuracy of ultrasound in the diagnosis of 'cornual pregnancy' and evaluate management.

Methods

Data pertaining to clinical features, ultrasound findings and treatment modalities of the aforementioned conditions between January 2002 and December 2015 at a tertiary perinatal centre were retrieved from the medical records. The ultrasound images and surgical videos were reviewed by the authors.

Results

Of 62 cases, 35 were interstitial, 26 were angular/eccentric intrauterine, and 1 was a rudimentary horn pregnancy. The accuracy of ultrasonography in the diagnosis of interstitial and angular pregnancies was 71.0 and 46.8%, respectively. Medical management was successful in 33.3% of interstitial pregnancies. Fifteen women with interstitial pregnancy had subsequent pregnancies and nine (75.0%) were Caesarean deliveries. Rupture and recurrence rates of interstitial pregnancy were 34.2 and 2.9%, respectively. The rudimentary horn pregnancy was managed by laparoscopic excision followed by a subsequent term delivery.

Conclusion

This study identified frequent occurrences of imprecise nomenclature that resulted in mismanagement of a few potentially viable angular pregnancies. It is imperative for clinicians and sonologists to use unambiguous nomenclature and avoid the term 'cornual pregnancy' altogether.

Hysteroscopic Methotrexate Injection Under Ultrasonographic Guidance for Interstitial Pregnancy

A 36-year-old woman presented with pelvic pain and vaginal blood loss and interstitial pregnancy (a single gestational sac located in the proximity of the right uterine horn, without visualization of an embryo and/or attachments inside) on 2- and 3-dimensional ultrasonographic examination. The patient was clinically stable. Her abdomen was soft with normal peristalsis; superficial and deep palpation were painless, as was decompression. With the patient under general anesthesia, an operative hysteroscopy was performed visually via ultrasound. A slow injection of methotrexate solution was pushed through the right cornual region inside the gestational sac and into the myometrial tissue tangentially at the 4 cardinal points. Twelve weeks later, the patient exhibited normal tubal patency via sonohysterography, as well as a viable pregnancy of 7 weeks' gestation. This minimally invasive approach is well tolerated and shows promise for the management of interstitial pregnancy, with no adverse effect on potential subsequent fertility.

Laparoscopic Management of Interstitial Ectopic Using Simple and Safe Technique: Case Series and Review of Literature

BACKGROUND AND OBJECTIVE

To determine the safety and sustainability of operative laparoscopy in surgical management of cornual and interstitial ectopic pregnancy using a simple and practical method.

DESIGN

Case series of five consecutive cases.

SETTING

Endoscopy unit in Alexandria University Hospital and Alexandria New Medical Center.

PATIENTS

Between July 2013 and May 2015, five women with interstitial and cornual ectopic pregnancies were admitted for laparoscopic surgical treatment.

METHODS

Full medical and surgical histories were taken. We explained all alternatives for both partners before informed. Patients underwent laparoscopy for management of the corneal ectopic. All surgeries were done by the same surgeon (T.S.) with different assistants. We gave different uterotonics drugs to devascularize the uterus. Two or more devascularization sutures were done on each end of the corneal ectopic. We used monopolar and bipolar electrocoagulation when indicated. We did linear cut of the interstitial ectopic with evacuation of the fetus and placental tissues. Extraction of the conceptus was performed through 10 mm port. Follow-up of the beta-hCG was done weekly till negative results were obtained.

RESULTS

The devascularization sutures together with uterotonics make the surgical treatment of interstitial ectopic easy and safe. This simple technique minimizes blood loss and decreases necrosis that follows excessive use of diathermy. This was demonstrated successfully in different types of interstitial ectopic. We did not remove any part of the uterus during surgery. Clinical criteria of the study cases were discussed. Type, size, blood loss and complications, and duration of the surgery were documented.

CONCLUSION

Operative laparoscopy using sutures and uterotonics is safe and sustainable approach in treatment of interstitial ectopic pregnancy.