Adnexal torsion and pulmonary embolism: case report and review of the literature

Rate of oophorectomy in pediatric ovarian torsion: risk factors and change over time

PURPOSE

The management of ovarian torsion in pediatric patients has evolved over time. Ovarian salvage is currently recommended given concerns for fertility preservation and the low likelihood of malignancy. Studies have shown that the incidence of oophorectomy is higher amongst pediatric surgeons in comparison to gynecologists. Using a national database, this study examined how the surgical management of ovarian torsion has evolved.

METHODS

Children with a discharge diagnosis of ovarian torsion (ICD-9 code 620.5, ICD-10 code N835X) and procedure codes for oophorectomy (CCS code 119) were identified within the KID database from 2003, 2006, 2009, 2012, 2016, and 2019. Diagnosis of ovarian pathology was based upon ICD-9 and ICD-10 codes at the time of discharge.

RESULTS

A total of 7008 patients, ages 1-20, had a discharge diagnosis of ovarian torsion. Of those patients, 2,597 (37.1%) were diagnosed with an ovarian cyst, 1560 (22.2%) were diagnosed with a benign ovarian neoplasm, and 30 (0.4%) were diagnosed with a malignant neoplasm. There was a decreased risk of oophorectomy in urban-teaching versus rural hospitals (OR: 0.64, p < 0.001). The rate of oophorectomy has decreased overtime. However, patients with benign or malignant neoplasms were more likely to undergo oophorectomy than those without a diagnosis (OR: 2.03, p < 0.001; 4.82, p < 0.001).

CONCLUSION

The rate of oophorectomy amongst children with ovarian torsion has decreased over time. Yet, despite improvements, oophorectomy is common amongst patients with benign ovarian neoplasms and those treated at rural hospitals. Continued education is needed to optimize patient care in all clinical scenarios.

LEVEL OF EVIDENCE

IV.

Synchronous bilateral ovarian torsion followed by recurrent unilateral torsion in a patient undergoing fertility treatment: A case report and literature review

BACKGROUND

Ovarian torsion (OT) is a gynaecological emergency and requires prompt recognition and treatment in order to prevent the loss of ovarian function. Patients who are undergoing fertility treatment are at an increased risk of developing OT.

OBJECTIVE

The diagnosis of OT in patients undergoing fertility treatment can be challenging as they often present with abdominal pain and other non-specific symptoms. We highlight the importance of early diagnosis of suspected torsion and performed a literature review on cases of bilateral OT to review its presentation, investigation, and subsequent management.

CASE REPORT

A 32-year-old nulliparous woman who was undergoing controlled ovarian stimulation presented with lower abdominal pain and was initially managed as ovarian hyperstimulation syndrome (OHSS). Her pain did not subside following conservative management and she proceeded to have a laparoscopy which demonstrated synchronous bilateral ovarian torsion (SBOT), both ovaries were detorted. Eight months later, she was preparing for her frozen embryo transfer (FET) cycle, patient again presented with significant right sided abdominal pain and was found to have a recurrent torsion of the right ovary which was again detorted successfully.

CONCLUSIONS

Clinicians should have a low-threshold to investigate and rule out OT in patients who present with lower abdominal pain, especially in those with additional risk factors for torsion. Patients with confirmed torsion can be successfully managed with detorsion of the ovaries. Further research is needed to determine the best management option for patients with recurrent torsion episodes.

Changing Practices in the Surgical Management of Adnexal Torsion: An Analysis of the National Surgical Quality Improvement Program Database

OBJECTIVE

To evaluate trends in the surgical management of adnexal torsion and to evaluate these trends with respect to the updated American College of Obstetricians and Gynecologists (ACOG) guidelines.

METHODS

We performed a retrospective cohort study using the National Surgical Quality Improvement Program database. Women who underwent surgery for adnexal torsion between 2008 and 2020 were identified on the basis of International Classification of Diseases codes. Surgeries were grouped as either ovarian conservation or oophorectomy with the use of Current Procedural Terminology codes. Patients were also grouped into year cohorts with respect to the publication of the updated ACOG guidelines (2008-2016 compared with 2017-2020). Multivariable logistic regression, weighted by cases per year, was used to assess differences between groups.

RESULTS

Of the 1,791 surgeries performed for adnexal torsion, 542 (30.3%) involved ovarian conservation and 1,249 (69.7%) involved oophorectomy. Older age, higher body mass index, higher American Society of Anesthesiologists classification, anemia, and diagnosis of hypertension were significantly associated with oophorectomy. There was no significant difference in the proportion of oophorectomies performed before 2017 compared with after 2017 (71.9% vs 69.1%, odds ratio [OR] 0.89, 95% CI 0.69-1.16; adjusted OR 0.94, 95% CI 0.71-1.25). A significant decrease in proportion of oophorectomies performed each year was identified over the entire study period (-1.6%/y, P=.02, 95% CI -3.0% to -0.22%); however, the rates did not differ before and after 2017 (interaction P=.16).

CONCLUSION

There was a modest decrease in the proportion of oophorectomies for adnexal torsion performed per year over the study period. However, oophorectomy is still commonly performed for adnexal torsion, despite updated guidelines from ACOG recommending ovarian conservation.

Underutilization of laparoscopy for ovarian surgeries in the pediatric population: A nationwide analysis

PURPOSE

Oophorectomy and ovarian detorsion are some of the most frequent operations performed in the female pediatric population. Despite the advent of laparoscopy, many surgeons continue to utilize open surgical approaches in these patients. This study sought to compare nationwide trends and postoperative outcomes in laparoscopic and open ovarian operations in the pediatric population.

METHODS

Females less than 21 years old who underwent ovarian operations (oophorectomy, detorsion, and/or drainage) from 2016 to 2017 were identified from the Nationwide Readmissions Database. Patients were stratified by surgical approach (laparoscopic or open). Hospital characteristics and outcomes were compared using standard statistical tests.

RESULTS

There were 13,202 females (age 17 [14-20] years) who underwent open (59%) or laparoscopic (41%) ovarian operations. The most common indications for surgery were ovarian mass (48%), cyst (36%), and/or torsion (19%) for which oophorectomy (88%), detorsion (26%), and drainage (13%) were performed most frequently. The open approach was utilized more frequently for oophorectomy (95% vs. 77% laparoscopic) and detorsion (33% vs. 16% laparoscopic), both p < 0.001. A greater proportion of laparoscopic procedures were performed at large (67% vs. 61% open), teaching (82% vs. 76% open) hospitals in patients with private insurance (47% vs. 42% open), all p < 0.001. Patients undergoing open procedures had significantly higher index length of stay (LOS) and rates of wound infections. Thirty-day and overall readmission rates, as well as overall readmission costs, were higher in patients who received open surgeries.

CONCLUSIONS

Despite fewer overall complications, decreased cost, fewer readmissions, and shorter LOS, laparoscopic approaches are underutilized for pediatric ovarian procedures.

TYPE OF STUDY

Retrospective Comparative.

LEVEL OF EVIDENCE

Level III.

Healthy adnexal torsion in pregnancy: A case report

•Adnexal torsion during pregnancy is a rare surgical emergency. •The diagnosis of certainty of adnexal torsion can only be made intraoperatively. •In the absence of any contraindication, laparoscopy should be the preferred approach. •Ovariopexy is proposed by certain authors in order to prevent recurrence.

Adnexal torsion: a review of diagnosis and management strategies

PURPOSE OF REVIEW

Adnexal torsion remains a diagnostic challenge heavily reliant on high clinical suspicion, with patient presentation and imaging used as adjuncts to aid in its diagnosis. This review summarizes diagnostic and management techniques of adnexal torsion to assist providers when encountering this surgical emergency.

RECENT FINDINGS

Common findings of adnexal torsion include abdominal pain, nausea, vomiting, and adnexal mass or ovarian enlargement. An elevated neutrophil to lymphocyte ratio may be useful for diagnosis. A 'whirlpool' sign, 'follicular ring' sign, enlarged/edematous ovary, and absent Doppler flow to the ovary are highly suggestive of adnexal torsion. Intraoperative visual diagnosis of ovarian death is highly inaccurate, with only 18-20% of ovaries necrotic on pathological examination. Necrotic appearing ovaries have been shown to have follicular activity on ultrasound one year postoperatively.

SUMMARY

Pelvic ultrasound remains the first-line imaging modality. In patients of reproductive age, we recommend performing detorsion with ovarian conservation, even in cases where the tissue appears necrotic, given poor intraoperative diagnostic rates of tissue death. Retention of ovarian function is also reliant on a timely diagnosis and intervention. We emphasize that the risk of ovarian damage/loss outweigh the risk of a diagnostic laparoscopy in patients of reproductive age.

Ovarian conservation in a patient with a large ovarian cyst and adnexal torsion - a confirmatory video with intravenous indocyanine green

OBJECTIVE

To share our experience of intravenous indocyanine green (ICG) application during conservative ovarian surgery in a young patient with adnexal torsion, a large ovarian cyst, and apparent ovarian necrosis.

DESIGN

This confirmatory video of ovarian reperfusion uses footage from the laparoscopic treatment and ICG application in a young patient with adnexal torsion and apparent necrosis.

SETTING

Academic, multisite medical center.

PATIENT(S)

A 24-year-old patient with a 12-cm dermoid cyst, adnexal torsion, and apparent tissue necrosis.

INTERVENTION(S)

Five milligrams intravenous ICG, de-torsion, ovarian cystectomy, and ovarian reconstruction. The patient approved the ICG off-label use.

MAIN OUTCOME MEASURE(S)

Ovarian preservation and perioperative morbidity.

RESULT(S)

This video demonstrates the surgical treatment of a patient with adnexal torsion. The perfusion patterns before and after the surgical treatment, i.e., cyst de-torsion and cyst removal are documented using intravenous ICG. The perfusion patterns guided the surgeon to perform ovarian conservation despite apparent initial ischemia. The patient recovered well, and no postoperative 30-day morbidity occurred.

CONCLUSION(S)

Intraoperative subjective overestimation of the true ovarian ischemia may lead to unnecessary oophorectomy. Per the American College of Obstetrics and Gynecology recommendation, patients with adnexal torsion should be treated surgically with ovarian conservation regardless of the appearance of the ovary. As demonstrated, ovaries reperfuse despite multiple twists along the infundibulopelvic pedicle, apparent necrosis, and large cysts. Unilateral salpingo-oophorectomies are avoidable even in these cases.

Oophorectomy for ovarian torsion - should this be abandoned?

BACKGROUND

Management of ovarian torsion ranges from de-torsion to oophorectomy and is dependent on various factors. Oophorectomy can have significant implications for fertility and general health, thus requiring careful consideration.

AIMS

We evaluate the management of ovarian torsion at a tertiary hospital over a ten-year period and identify the predictors of oophorectomy in ovarian torsion cases.

MATERIALS AND METHODS

Inpatient notes of patients who underwent surgical management for acute ovarian torsion at a tertiary hospital in Victoria, Australia, were reviewed, from January 2008 to June 2018. We reported the incidence and predictors of oophorectomy and ovarian ischaemia and current practices in oophoropexy.

RESULTS

Our analysis included 159 patients. The incidence of oophorectomy was 47%. After confounders were adjusted, increasing age was the only significant predictor for oophorectomy. The adjusted odds ratio of having an oophorectomy based on age alone was 1.10 for each year increase in age between the ages of 15 and 68 (P = 0.001, 95% confidence interval 1.04-1.16). Of those with oophorectomy, 57% had ischaemia confirmed histologically. There were no significant predictors for ischaemia.

CONCLUSION

The incidence of oophorectomy in this audit is comparable to reported incidences in current literature. However, with increasing evidence to support ongoing ovarian function even in cases where ischaemia is histologically confirmed, this incidence could be lowered. Age was the only variable that was found to have a significant effect on the incidence of oophorectomy.

Adnexal torsion in a pediatric population: Acute presentation with question of chronicity

OBJECTIVES

To establish the frequency of torsion with multiple twists of the adnexa in girls 19 years old and younger surgically diagnosed with torsion.

STUDY DESIGN

A retrospective chart review using an institutional tool to review charts of female patients 19 years old or younger who presented with acute abdominal pain leading to a surgical diagnosis of adnexal torsion.

RESULTS

Of 141 pediatric patients with torsion, 61 (43%) had documentation of multiple twists, with 2 to 12 rotations present. 33% reported acute pain (<24 hrs) whereas most (67%) had pain > 24 h up to 4 weeks without abatement (23%) or experienced discrete episodes with pain resolution between episodes (44%). Even when vascular flow was demonstrated, multiple twists were frequently found (14/36 = 39%). When multiple twists were documented, more patients had an extirpative procedure due to a nonviable appearing ovary than when a single or unstated number of twists twist was found, although the results were not statistically significant (53.5% vs 42.9%, p = 0.098).

CONCLUSIONS

Forty-three percent of girls presenting with symptoms of torsion had multiple twists in the adnexa. Many had provided a history of previous similar episodes of pain and presentation to emergency departments, suggesting possible previous undiagnosed episodes of torsion. Earlier diagnosis may provide a better opportunity for ovarian conservation prior to a recurrent torsion. Further study may reveal whether multiple twists are more likely to result in a nonviable ovary and need for oophorectomy.

Conservative surgery for ovarian torsion in young women: perioperative complications and national trends

OBJECTIVE

To analyse populational trends and perioperative complications following conservative surgery versus oophorectomy in women <50 years of age with ovarian torsion.

DESIGN

Population-based retrospective observational study.

SETTING

Nationwide Inpatient Sample in the USA (2001-2015).

POPULATION

In all, 89 177 ovarian torsions including 20 597 (23.1%) conservative surgeries and 68 580 (76.9%) oophorectomies.

METHODS

(1) Trend analysis to assess utilisation of conservative surgery over time, (2) multivariable binary logistic regression to identify independent factors associated with conservative surgery and (3) inverse probability of treatment weighting with a generalised estimating equation to analyze perioperative complications.

MAIN OUTCOME MEASURES

Trends, characteristics and complications related to conservative surgery.

RESULTS

Performance of conservative surgery increased from 18.9 to 25.1% between 2001 and 2015 (32.8% relative increase, P = 0.001) but decreased steadily after age 15, and sharply declined after age 35 (P < 0.001). On multivariable analysis, younger age exhibited the largest effect size for conservative surgery among the independent factors (adjusted odds ratios 3.39-7.96, P < 0.001). In the weighted model, conservative surgery was associated with an approximately 30% decreased risk of perioperative complications overall (10.0% versus 13.6%, odds ratio 0.73, 95% confidence interval 0.62-0.85, P < 0.001) and was not associated with venous thromboembolism (0.2 versus 0.3%, P = 0.457) or sepsis (0.4 versus 0.3%, P = 0.638).

CONCLUSION

There has been an increasing utilisation of conservative surgery for ovarian torsion in the USA in recent years. Our study suggests that conservative surgery for ovarian torsion may not be associated with increased perioperative complications.

TWEETABLE ABSTRACT

Conservative surgery for ovarian torsion may not be associated with increased perioperative complications.

Going, gonad, gone. Gender inequalities in the management of gonadal torsion: a cohort study

Gonadal torsion (when the gonad twists on its ligamentous supports) is a surgical emergency in both men and women. Prompt management is essential to preserve gonadal function. Our aim was to compare the timeliness with which men and women who underwent surgery for suspected gonadal torsion are managed. All adult patients who underwent surgery for suspected gonadal torsion between 1/4/16 and 31/3/18 were reviewed and the following times recorded: symptom onset; hospital presentation; gynaecological/surgical review; decision for theatre; and knife-to-skin (KTS). The surgical procedure(s) and intra-operative findings were also documented. In total, 31 women (mean age 29.4 ± 7.1yrs) and 49 men (mean age 23.2 ± 7.0yrs) were identified. Women waited significantly longer than men at every stage (p < 0.01). Time intervals between hospital presentation and review, review and decision for theatre, and decision and KTS were 1.6 (1.2-2.6 hrs), 0.3 (0.0-0.9 hrs) and 1.7 (1.5-2.5 hrs) for men and 4.3 (3.1-15.3 hrs), 10.3 hrs (2.4-20.7 hrs) and 4.7 (2.3-9.3 hrs) for women, respectively. Torsion was confirmed in 20 (64.5%) women and 25 (51.0%) men. Intraoperatively, 13(65%) ovaries were reportedly necrotic compared to only 6 (24%) testes (p = 0.0076). All necrotic gonads were removed despite conservative surgery being recommended practice during the study period. Women with suspected gonadal torsion received suboptimal care compared to their male counterparts, which has potentially catastrophic consequences for the subsequent fertility of this predominantly young population.

Emergent complication of assisted reproductive technology: Clinical analysis of 17 pregnant women with adnexal torsion

BACKGROUND

The purpose of this study was to evaluate the clinical symptoms, surgical management, and outcomes of pregnant women with adnexal torsion due to assisted reproductive technology.

METHODS

It was a retrospective study that include 17 pregnant women with adnexal torsion, in which the maternal age, type of fertilization, gestational age, clinical symptoms, ultrasonic findings, side affected by the disease, surgical method, and pregnancy outcomes were evaluated.

RESULTS

A total of 17 patients with adnexal torsion were included in this study, of which 8 patients conceived by in vitro fertilization-embryo transfer (IVF-ET), 1 by artificial insemination (AIH), and the other 8 conceived naturally after ovulation induction. About 14 were reported to have occurred in the first trimester of pregnancy, 1 case in the second trimester, and the other 2 in the third trimester. Clinical symptoms were abdominal pain with or without nausea and vomiting. 14 cases occurred in the right adnexa and the other 3 in the left. 5 of the patients underwent laparoscopy, and the other 12 underwent laparotomy. 8 cases were of full- term delivery, 6 twins gave birth prematurely, and 3 patients had inevitable abortion.

CONCLUSIONS

Adnexal torsion is an acute onset of lower abdominal pain in women, which seldom occurs during pregnancy. However, because of the wide application of assisted reproductive technology (ART), its incidence has increased. Early diagnosis and treatment can lead to better results.

Laparoscopic Adnexal Detorsion in a 20-Week Pregnant Patient: A Case Report and Literature Review

Adnexal torsion is a cause of severe pelvic pain in reproductive aged women and during pregnancy. Adnexal torsion occurs when there is a complete turn of the ovary, tube, or both resulting in impaired blood flow to the ovary. The diagnosis of adnexal torsion is sometimes challenging due to the enlarged effect of the uterus, the displacement of abdominal and pelvic structures and the nonspecific symptoms in pregnancy. Therefore, prompt diagnosis is essential for better maternal and neonatal outcomes. The gold standard for confirmation and treatment of ovarian torsion is surgery. Laparoscopy and Laparotomy are surgical options with defined risks and benefits. Therefore, choosing the best surgical technique and surgical procedure are of utmost importance to decrease the chances of adverse events intra and postoperatively. Little literature exists regarding the laparoscopic approach of an ovarian torsion during the second trimester. Our case is a 20-week pregnant patient who had a 1080 degree rotation of the left adnexa. She required laparoscopy for adnexal detorsion and had good intraoperative, postoperative, maternal, and neonatal outcomes following management.

No. 341-Diagnosis and Management of Adnexal Torsion in Children, Adolescents, and Adults

OBJECTIVE

To review the evidence and provide recommendations on the diagnosis and management of adnexal torsion in children, adolescents, and women.

OUTCOMES

Elements evaluated include the risk factors, diagnostic accuracy, management options, and outcomes of adnexal torsion.

EVIDENCE

Published literature was retrieved through searches of MEDLINE, Embase, CINAHL, and the Cochrane Library using appropriate controlled vocabulary and key words ("adnexal torsion," "ovarian torsion"). Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. Searches were updated on a regular basis and new material incorporated in the guideline to December 2014. Grey (unpublished) literature was identified through searching the websites of health technology assessment and related agencies, clinical practice guideline collections, clinical trial registries, and national and international medical specialty societies.

VALUES

The evidence obtained was reviewed and evaluated by the Canadian Paediatric and Adolescent Gynaecology and Obstetrics Committee of the Society of Obstetricians and Gynaecologists of Canada (SOGC) under the leadership of the principal authors. Recommendations were made according to guidelines developed by the Canadian Task Force on the Periodic Health Examination.

BENEFITS, HARMS AND COSTS

Guideline implementation should assist the practitioner in developing an optimal approach to the diagnosis and management of adnexal torsion while minimizing harm and improving patient outcomes.

VALIDATION

These guidelines have been reviewed and approved by the Gynaecology Committee of the SOGC and approved by the council of the SOGC.

SPONSOR

The Society of Obstetricians and Gynaecologists of Canada SUMMARY STATEMENTS: RECOMMENDATIONS.

Pediatric ovarian torsion: Follow- up after preservation of ovarian tissue

BACKGROUND

The aim of this study was to evaluate the efficiency of the preservation of ovarian tissue in cases of ovarian torsion.

MATERIALS AND METHODS

A retrospective study was performed of patients treated at our hospital for ovarian torsion from January 2007 to December 2017. This research does not include patients with antenatal ovarian torsion and 1 girl with an immature teratoma, in whom the twisted ovary was removed during the initial operation. Follow-up ultrasonography of all patients was performed after 4-6 weeks and again after more than 12 weeks. Volume, blood flow and folliculogenesis of the ovary were measured and assessed.

RESULTS

All 42 ovaries (39 patients) preserved their normal anatomy and folliculogenesis after detorsion. All patients had an enlarged ovary at the time of detorsion. In all cases of ovarian torsion, enlargement of the ovary up to an average of 58.14 ± 52.86 (17.37-86.83) ml was detected. After 4-6 weeks, all untwisted ovaries decreased in volume by an average of 9.01 ± 13.69 (2.33-9.30) times, and 59.5% of them became normal in size. In 3 girls, enlarged ovaries were still observed after 12 weeks. Teratoma was diagnosed for these patients and ovarian sparing operations were performed.

CONCLUSIONS

It is safe to perform detorsion regardless of the level of ischemia or volume of the affected ovary. The follow-up is essential, especially for the further diagnostics of potential pathological structures or tumors; therefore, the normalization of blood flow and the volume of the ovary must be monitored.

TYPE OF STUDY

Prognosis retrospective study.

LEVEL OF EVIDENCE

II.

Adnexal Torsion in Children and Adolescents: A Retrospective Review of 245 Cases at a Single Institution

STUDY OBJECTIVE

Adnexal torsion (AT) requires urgent surgical intervention to preserve ovarian function. Historically, treatment for AT was oophorectomy because of concerns related to leaving a nonviable ischemic ovary. No published studies support these theoretical concerns and current literature supports conservative management. The aim of this study was to review the institutional outcomes for AT cases, including salvage rates and complications. DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: This study was approved by the institutional review board at Baylor College of Medicine. A retrospective chart review on cases of AT from 2007 to 2016 at a single Children's hospital was performed on the basis of International Classification of Diseases, 10th revision and Current Procedural Terminology codes. A standardized chart review form was used in data extraction. Statistical analysis was performed using SAS version 9.4 (SAS Institute).

RESULTS

Chart review identified 245 torsion cases in 237 patients. The mean age was 12.4 ± 3.29 years. Of the participants, 230 (94%) underwent minimally invasive laparoscopy with ovarian preservation in 233 (95%) of the cases. There were no complications due to detorsion of the affected adnexa. Intraoperatively, the right adnexa was affected in 134 (55%) cases and a lesion was noted in 193 (79%) cases, most commonly paratubal cysts and mature teratomas. The malignancy rate was low, noted only in 4/245 patients at (1.2%). Pediatric gynecology performed most of the cases (n = 214; 87%).

CONCLUSION

The findings of our study continue to support the conservative management of patients with AT.

Characteristics of the patients with adnexal torsion and outcomes of different surgical procedures: A retrospective study

There is no uniform standard to assess the viability of the ovary and choose conservative surgery or radical surgery for patients with adnexal torsion. This retrospective study aims to explore the characteristics of patients with adnexal torsion and the outcomes of different surgical procedures.A retrospective analysis of 174 cases diagnosed with adnexal torsion at our hospital between January 2005 and October 2014 was performed. Patients' clinical characteristics, surgical procedures, and postoperative recovery were analyzed.Of the cases, 31 (17.82%) did not have any emergent symptom; adnexal torsion were found during other surgeries. Among all 174 adnexal torsion patients, 14 cases received conservative treatment, including anti-inflammatory treatment, and 8 (58.1%) were pregnant. Of the cases, 160 underwent surgical treatment: 144 (90%) were confirmed to have ovary/ovarian cyst torsion, among whom 26 (18.1%) had their adnexa retained (group A) and 118 (81.9%) underwent adnexectomy (group B). Age, time of torsion, and rounds of torsion in group A were significantly less than in group B. None of the patients with adnexa preservation surgery had any complication, such as abdominal infection or thrombotic diseases.Patients with ovary/ovarian cyst torsion can attempt to preserve the ovaries without serious clinical complications; there were no severe complications such as embolism after the conservative surgeries in this study.

Ovarian torsion in pediatric and adolescent patients: A systematic review

OBJECTIVE

Ovarian torsion in pediatric patients is a rare event and is primarily managed by pediatric general surgeons. Torsion can be treated with detorsion of the ovary or oopherectomy. Oopherectomy is the most common procedure performed by pediatric general surgeons for ovarian torsion. The purpose of this systematic review by the American Pediatric Surgical Association Outcomes and Evidence Based Practice Committee was to examine evidence from the medical literature and provide recommendations regarding the optimal treatment of ovarian torsion.

METHODS

Using PRISMA guidelines, six questions were addressed by searching Medline, Cochrane, Embase Central and National clearing house databases using relevant search terms. Risks of ovarian detorsion including thromboembolism and malignancy, indications for oophoropexy, benefits of detorsion including recovery of function and subsequent fertility, and recommended surveillance after detorsion were evaluated. Consensus recommendations were derived for each question based on the best available evidence.

RESULTS

Ninety-six studies were included. Risks of ovarian detorsion such as thromboembolism and malignancy were reviewed, demonstrating minimal evidence for unknowingly leaving a malignancy behind in the salvaged ovary and no evidence in the literature of thromboembolic events after detorsion of a torsed ovary. There is no clear evidence supporting the benefit of oophoropexy after a single episode of ovarian torsion. The gross appearance of the ovary does not correlate with long-term ovarian viability or function. Pregnancies have occurred in patients after detorsion of an ovary both spontaneously and with harvested oocytes from previously torsed ovaries. The consensus recommendation for imaging surveillance following ovarian detorsion is an ultrasound at 3months postprocedure but sooner if there is a concern for malignancy.

CONCLUSION

There appears to be overwhelming evidence supporting ovarian detorsion rather than oopherectomy for the management of ovarian torsion in pediatric patients. Ovarian salvage is safe and is the preferred treatment for ovarian torsion. Most salvaged ovaries will maintain viability after detorsion.

TYPE OF STUDY

Systematic review of level 3-4 studies.

LEVEL OF EVIDENCE

3-4.

Conservative laparoscopic management of adnexal torsion based on a 17-year follow-up experience

Laparoscopic unwinding of adnexal torsion has been proposed for decades. However, this technique is still controversial regarding the concern of thromboembolic events. We present two cases of conservative laparoscopic management of adnexal torsion. In the first case, a 16-year-old adolescent with serous cystadenoma was successfully managed by untwisting and cystectomy. We followed up this patient for 17 years with regular re-examinations in our hospital. To the best of our knowledge, this is the longest follow-up reported of this condition. In the second case, a 32-year-old infertile woman who received oocyte retrieval 3 days before being admitted to hospital was referred to hospital with right ovarian torsion. We treated her successfully based on our long-term follow-up experience, and she is now asymptomatic and in her 7th month of pregnancy.

Evolution in the Management of Pediatric and Adolescent Ovarian Torsion as a Result of Quality Improvement Measures

STUDY OBJECTIVE

The aim of this study was to document the change in ovarian conservation rate after ovarian torsion as a result of continuous quality improvement (CQI) measures, and to determine factors that contribute to this outcome.

DESIGN

A retrospective, uncontrolled before-and-after study.

SETTING

An academic children's hospital.

PARTICIPANTS

Female adolescents younger than 18 years with surgically confirmed ovarian torsion from April 1, 1988 to October 15, 2013; excluding cases from 2003 (intervention period).

INTERVENTIONS

Implementation of CQI measures including educational programs, collaborative care pathways, and quality review with the goal of improving ovarian conservation.

MAIN OUTCOME MEASURES

Demographic characteristics, details on presentation, investigations, consultation, surgical intervention, surgical findings, pathology, postoperative course, and follow-up imaging.

RESULTS

One hundred thirty-nine patients met inclusion criteria (42 pre-CQI cohort and 97 post-CQI cohort). Mean ages were 9.96 and 10.33 years, respectively. Ovarian conservation rates were 47.6% compared with 85.6%, respectively (P < .001). The following factors differed between cohorts: fever (P = .003), ultrasound completed (P = .001), time from first health care provider visit to imaging (P = .025), time from specialist consultation to surgery (P = .002), surgical start time within 1 hour of booking (P < .001), and gynecologist present in operating room (P < .001). A log-binomial regression model showed that gynecology presence in the operating room (relative risk [RR], 2.043) was associated with untwisting. Increasing time from specialist consultation to surgery (RR, 0.986 per hour) was inversely associated with untwisting. Fever at presentation was also inversely associated with untwisting (RR, 0.666).

CONCLUSION

The implementation of CQI measures was associated with a significant increase in ovarian conservation rate.

Surgical Management of Benign Adnexal Masses in the Pediatric/Adolescent Population: An 11-Year Review

STUDY OBJECTIVE

The purpose of this study was to compare ovarian conservation rates and surgical approach in benign adnexal surgeries performed by surgeons vs gynecologists at a tertiary care institution.

DESIGN

A retrospective cohort review.

SETTING

Children's and adult tertiary care university-based hospital.

PARTICIPANTS

Patients 21 years of age and younger who underwent surgery for an adnexal mass from January 2003 through December 2013.

INTERVENTIONS

Patient age, demographic characteristics, menarchal status, clinical symptoms, radiologic imaging, timing of surgery, surgeon specialty, mode of surgery, rate of ovarian conservation, and pathology were recorded. Patients were excluded if they had a uterine anomaly or pathology-proven malignancy.

MAIN OUTCOME MEASURES

The primary outcome was the rate of ovarian conservation relative to surgical specialty; secondary outcome was surgical approach relative to surgical specialty.

RESULTS

Of 310 potential cases, 194 met inclusion criteria. Gynecologists were more likely than surgeons to conserve the ovary (80% vs 63%; odds ratio, 2.28; 95% confidence interval, 1.16-4.48). After adjusting for age, body mass index, mass size, and urgency of surgery, the difference was attenuated (adjusted odds ratio, 1.84; 95% confidence interval, 0.88-3.84). Surgeons and gynecologists performed minimally invasive surgery at similar rates (62% vs 50%; P = .11). A patient was more likely to receive surgery by a gynecologist if she was older (P < .001) and postmenarchal (P = .005).

CONCLUSION

Results of our study suggest that gynecologists are more likely to perform ovarian-conserving surgery. However, our sample size precluded precise estimates in our multivariable model. Educational efforts among all pediatric and gynecologic surgeons should emphasize ovarian conservation and fertility preservation whenever possible.

Impact of laparoscopic ovarian detorsion on ovarian reserve

AIM

The aim of this study was to evaluate ovarian reserve after laparoscopic ovarian detorsion in patients with ovarian torsion.

METHODS

From February 2014 to September 2015, a total of 11 patients with ovarian torsion underwent laparoscopic detorsion. These 11 patients were eligible for study, and ovarian reserve was assessed on serum anti-Müllerian hormone (AMH) and by antral follicle count preoperatively, and in postoperative months 1 and 3.

RESULTS

Mean patient age was 25.4 ± 5.5 years. Although mean antral follicle count on the operated side was slightly lower than on the contralateral side at 1 month postoperatively (P > 0.05), at 3 months postoperatively there was no difference in mean antral follicle count between the operated and contralateral sides (P > 0.05). There was no significant change in serum AMH level at 1 and 3 months postoperatively compared with the preoperative level (P > 0.05).

CONCLUSIONS

Laparoscopic detorsion of twisted ovary is a safe procedure to preserve ovarian function, and does not impair ovarian reserve according to antral follicle count and AMH during the course of follow-up.

Ruptured Ectopic Pregnancy with Contralateral Ovarian Serous Cyst Adenoma Torsion: Laparoscopic Management of Double Trouble

Adnexal torsion is responsible for 2.7% of all gynecological emergencies. Ectopic pregnancy is relatively common, occurring in 2% of all pregnancies. We report the second case of ruptured right tubal ectopic gestation with torsion of serous cystadenoma of left ovary. This was diagnosed after emergency laparoscopy done for acute abdomen. Right salpingectomy and left ovarian detorsion followed by cystectomy were done laparoscopically.

Oxidative Stress during Ovarian Torsion in Pediatric and Adolescent Patients: Changing The Perspective of The Disease

Among the different causes of gynecological acute pelvic pain, ovarian torsion represents a surgical emergency. It is a rare case in the pediatric/adolescent aged group that must be included in the differential diagnosis of any girl with abdominal pain or pelvic/abdominal mass. Current recommendations suggest that laparoscopic detorsion should be performed in order to preserve the integrity of the ovaries and fertility, although oophoropexy may be considered in case of severe necrosis. Nevertheless, maintaining the circulation of the ovary after detorsion deteriorates the tissue injury and leads to a pathologic process called ischaemia/reperfusion (I/R) injury, which is characterized by oxidative stress. During the detorsion process, an excess amount of molecular oxygen is supplied to the tissues, and reactive species of oxygen (ROS) such as superoxide radical (O₂^-), hydrogen peroxide (H₂O₂), hydroxyl radical (OH•), as well as reactive nitrogen species (RNS) are produced in excess. ROS, RNS and their toxic products cause DNA damage and lipid peroxidation in the cellular and mitochondrial membranes, leading to cell death. In spite of attention on this topic, currently there is no shared and clear evidence about the use of anti-inflammatory and antioxidant agents to prevent I/R damage after laparoscopic ovarian detorsion. Considering this element, future research should aim to develop shared protocols for the clinical use (route of application, dosage and time of application) of antioxidants after laparoscopic management of this condition.

Pediatric ovarian torsion: a pictorial review

Imaging is crucial in expediting the diagnosis and guiding definitive therapy in children with ovarian torsion. This article reviews the multimodality spectrum of imaging findings in pediatric ovarian torsion, focusing primarily on US appearances. We describe predisposing conditions that can lead to torsion, the pathological basis of the radiologic findings in ovarian torsion, and the common diagnostic pitfalls.

National Trends in the Surgical Treatment of Ovarian Torsion in Children: An Analysis of 2041 Pediatric Patients Utilizing the Nationwide Inpatient Sample

The aim of this study was to evaluate the national trends in surgical management of ovarian torsion (OT) in children. The Nationwide Inpatient Sample was queried from 1998 to 2011 for females less than 18 years of age with OT. Patients were stratified into three treatment groups: oophorectomy (OO), oophoropexy, or release of torsion (RT) alone. There were 2041 patients with OT, of which 1598 (78%) underwent OO, 126 (6%) oophoropexy, and 317 (15%) RT. RT significantly increased from 1998 to 2011 (9% vs 25%; P < 0.05). At nonteaching hospitals, there were higher rates of OO (89.3% vs 79.5%; P < 0.05) and lower rates of RT (10.7% vs 20.5%; P < 0.05) compared with teaching hospitals. RT was performed at a higher rate in Northeast United States compared with the South (22.7% vs 14.2%; P < 0.05). Girls presenting at nonteaching hospitals and the South had increased odds of undergoing OO compared with those presenting at teaching hospitals and the Northeast ( P < 0.05). Although ovarian conservation for OT in children is more often performed in the Northeast United States and at teaching hospitals, this large population-based study demonstrates OO remains the most common surgical management for OT in the United States.

Ultrasound-guided percutaneous aspiration of hyperreactio luteinalis avoids laparoscopic untwisting of ovarian torsion

Hyperreactio luteinalis (HL) is characterized by multicystic bilateral enlargement of the ovaries and is a self-limiting benign condition associated with pregnancy or trophoblastic disease. Since HL regresses spontaneously over time, it should be managed conservatively as long as the patient's condition permits; torsion of the enlarged ovaries is believed to be the only exception that mandates surgical intervention. Here, we describe a case of HL complicated by ovarian torsion that was treated successfully without surgical intervention. A 33-year-old woman was admitted to our hospital owing to acute abdomen. Nine days previously, she had had a stillbirth caused by hydrops fetalis at 24 weeks' gestation. The characteristic findings observed on magnetic resonance imaging (MRI) led to the diagnosis of HL complicated by torsion of the enlarged left ovary. Emergency laparoscopic detorsion of the ischemic left ovary was planned. Aiming to reduce the risk of cystic injury and bleeding at the trocar insertion site, volume reduction of the left ovarian cyst was performed by percutaneous aspiration. The patient's pain diminished rapidly and laparoscopic surgery was deferred. Subsequent MRI revealed that gadolinium enhancement of the left ovarian tumor had been restored, indicating spontaneous detorsion of the left ovary. The patient remained asymptomatic and was discharged from the hospital 12 days after aspiration of the cyst. From this experience, we propose that, in cases of ovarian torsion occurring in large functional cysts, including HL, volume reduction by percutaneous cyst aspiration should be considered before performing emergency laparoscopic surgery.

Outcome Following Detorsion of Torsed Adnexa in Children

STUDY OBJECTIVE

To examine the postoperative course and outcomes of young females with ovarian torsion treated with detorsion and ovarian preservation. The secondary objective was to determine which operative findings correlated with higher follicular counts following detorsion.

DESIGN

Retrospective chart review.

SETTING

Tertiary academic center.

PARTICIPANTS

29 females (mean age 10.3 ± 4.9 y) who underwent surgery for ovarian torsion with detorsion and ovarian preservation at our institution between July 2007 and July 2010 and who had follow-up pelvic ultrasonography available for review.

INTERVENTIONS

None.

MAIN OUTCOME MEASURES

Surgical findings, postoperative complications, and follicular counts on follow-up ultrasonography.

RESULTS

Mean duration of abdominal pain on presentation was 77.5 ± 78.8 h. The detorsed ovary was described as "dusky/purple" in 21 cases (72.4%), "normal" in 1 (3.4%), "necrotic" in 1 (3.4%), and not described in 6 (20.7%). All pubertal patients resumed menstrual function. No patients required reoperation for removal of the salvaged ovary. There were no instances of postoperative fever or concern for ovarian venous thrombosis. Average timing of follow-up ultrasonography was 8.1 ± 6.7 months, with 28 patients (96.6%) showing ovarian follicles on the affected side (mean 4.6 ± 1.9 and 4.7 ± 3.3 follicles on the right and left ovary, respectively). No correlation was found between the side affected, gross appearance of the torsed ovary or the number of follicles found on follow-up ultrasonography.

CONCLUSIONS

Detorsion with ovarian preservation is a safe and effective treatment, and should be considered the primary treatment for girls with ovarian torsion, even for those with ovaries that appear necrotic.

Re-torsion of the ovaries

The increasing use of de-torsion of the ovaries may result in re-torsion. This review addresses risk of re-torsion and describes preventive strategies to avoid re-torsion in pre-menarcheal girls, and fertile and pregnant women. We clinically reviewed PubMed, Embase, Trip and Cochrane databases. The main outcome measures were re-torsion and viability of ovary with fixation measures. A total of 38 publications including 71 girls, 363 fertile women, and 69 pregnant women were found to be relevant. All studies were case reports or case series, sometimes with non-randomized controls. The studies show considerable heterogeneity in design, population, management and outcome. Only four studies included more than 50 cases. In pregnancy the risk of re-torsion was as high as 19.5-37.5%; among fertile women it was 28.6%. Most articles concluded that fixation of the ovaries to the pelvic sidewall or plication of the ovarian ligament after torsion may prevent re-torsion. In one case a girl experienced re-torsion after ovariopexy. Based on observational studies it seems that de-torsion and fixation of the ovary is a safe procedure that usually ensures maintenance of ovarian function and reduces the risk of recurrence, especially when there are no ovarian cysts or adnexal masses.

Protective effect of oxytocin on ovarian ischemia-reperfusion injury in rats

Oxytocin (OT), a neurohypophysial nonapeptide, plays dual role as a neurotransmitter/neuromodulator and a hormone. It has also well known protective properties against ischemia/reperfusion organ damage. This study investigated the effect of OT on experimentally induced ovarian torsion/de-torsion ischemia/reperfusion (I/R) injury in rats. Sprague-Dawley rats were assigned to five treatment groups (n=7/group): Group 1, sham-operated; Group 2, torsion; Group 3, 80 IU/kg of OT administration 30 min prior to torsion; Group 4, torsion/de-torsion; and Group 5, torsion followed by 80 IU/kg of OT administration 30 min prior to de-torsion. OT administration significantly decreased the tissue malondialdehyde (MDA) levels in both the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) in comparison with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). Histopathological finding scores including follicular degeneration, edema, hemorrhage, vascular congestion, and infiltration by inflammatory cells were found to be significantly decreased in the torsion and OT group (Group 3), and torsion/de-torsion OT group (Group 5) when compared with the torsion-only group (Group 2) and torsion/de-torsion group (Group 4). In conclusion, these results, verified with histopathologic evaluation and biochemical assays, suggest a probable protective role for OT in ischemia and I/R injury in rat ovaries.

Folicular reserve changes in torsion-detorsion of the ovary: an experimental study

OBJECTIVE

We assess follicular reserve changes by follicle count in torsion-detorsion rat model.

STUDY DESIGN

30 albino rats were randomly divided into 3 groups: sham group (SG), detorsion after 24-hour torsion group (24hTG) and detorsion after 72-hour torsion group (72hTG). Ovaries were torsioned and fixed. They were untwisted 24 and 72 h later. Oophorectomies were performed at 14th day after detorsion. Tissue damage scoring and follicle counts were evaluated microscopically.

RESULTS

Tissue damage scores (TDSs) were higher in 72hTG and 24hTG compared to SG. In addition, as we increase torsion duration, TDSs also increased. There was no statistically significant difference in follicle numbers (primordial, primary, secondary and tertiary).

CONCLUSION

Duration of torsion and intensity of ovarian damage do not affect follicular reserve in a rat model. Regardless of their macroscopic appearance, ovaries maintain their follicle reserves after torsion. Thus, surgeons should be reassured and encouraged to untwist torsioned ovaries rather than removing them.

Should the ovary always be conserved in torsion? A tertiary care institute experience

AIM

The aim of this study was to analyze our experience in conserving ovarian tissue in cases of ovarian torsion, irrespective of grade of necrosis at exploration.

MATERIALS AND METHODS

All children with a diagnosis of ovarian torsion admitted to our hospital from January 2009 to January 2013 were included. Patients with underlying ovarian pathology were excluded.

RESULTS

There were 13 torsions in 12 children (one bilateral). All underwent detorsion with or without evacuation of hematoma. Follow-up ultrasonography (USG) with color Doppler was done for all 13 ovaries, which showed an ovary with good vascularity and follicular development in 12 ovaries (92%). In 76% (10 of 13) of cases, intraoperatively, the ovary was judged to be moderately to severely ischemic/necrotic. Yet, follow-up sonograms showed the ovary with follicular development in all cases except one (7%). There were no major complications in our series.

CONCLUSION

Simple detorsion, instead of traditionally advocated oophorectomy, was not accompanied by an increase in morbidity. On follow-up, almost all patients studied had functioning ovarian tissue despite the grave ischemia observed intraoperatively. Detorsion should be the procedure of choice for all cases of simple ovarian torsion in children.

Ovarian torsion in children: management and outcomes

BACKGROUND

The purpose of this study is to evaluate the clinical symptoms, diagnosis, management, and outcomes in children with ovarian torsion.

METHODS

The charts of 50 patients with 53 cases of ovarian torsion treated between January 1989 and March 2012 were reviewed retrospectively. Long term follow up was available for 20 girls who had their ovaries left in the abdominal cavity after detorsion.

RESULTS

In 22 cases ovaries were removed, and in 31 cases the torsion was relieved and the ovaries left in the abdominal cavity. Twenty-five of the salvaged ovaries were black-bluish and 10 bluish in color. Since 2005, after a change in preferred treatment, all ovaries treated by detorsion were left in the abdominal cavity. The long term results were observed clinically and by ultrasound in 20 girls. Multifollicular ovaries were found in 17 girls. One girl had a normal size paucifollicular ovary, a one-year-old girl had a normal size ovary with microfollicles, and one girl had no ovarian material detectable by ultrasound.

CONCLUSIONS

Long term analysis of the treatment of ovarian torsion revealed that ovaries treated by detorsion and left in the abdominal cavity preserved their normal anatomy and function. Conservative surgical treatment proved to be safe. None of the girls had thromboembolism or peritonitis, and no malignant tumors were found in the operated ovaries.

Adnexal torsion in children and adolescents: new trends to conservative surgical approach -- our experience and review of literature

The purpose of this study is to discuss the surgical treatment for ovarian torsion in children and adolescents with a focus on the procedures of adnexal conservation surgery and its frequency in the literature of the last 10 years. We retrospectively reviewed the medical charts of 127 operative ovarian lesions including 30 ovarian torsions (23.6%) treated in two pediatric centers over a 10-year period. Age at presentation, presenting symptoms, diagnostic studies, surgical procedure and pathological findings were analyzed. Mean age was 13.7 years. Conservative surgery has been performed in 46.7% of the cases and laparoscopic approach in 40%. Ovarian torsion occurred in 56.7% on ovaries with functional lesion, in 23.3% on normal adnexa and in 20% on ovaries with benign neoplasm. The article includes a literature review (2000-2010) and a statistical analysis which shows a slow increase in conservative surgery from 28 to 45%. Laparoscopic surgery accounts for 23.5%. Literature review shows 40.5% normal adnexa, 33.2% non-neoplastic lesions, 25.3% benign neoplasms and 1% malignant neoplasms. The surgical treatment of children and adolescents presenting adnexal torsion should be practiced as an emergency and it should be more conservative as possible in order to maximize the future reproductive potential.

Laparoscopic treatment of isolated salpingeal torsion in children: case series and a 20-year review of the literature

BACKGROUND

Isolated torsion of the Fallopian tube, without ovarian torsion, is a rare cause of lower abdominal pain. We report our experience with 4 recent cases, along with data from a 20-year review of the pediatric literature.

SUBJECTS AND METHODS

The records of 4 cases encountered during a 3-year period were reviewed. A literature review was completed by searching Medline, Medline in Process, Embase, Current Contents, and BIOSIS from 1990 to 2010.

RESULTS

All 4 patients were diagnosed on laparoscopy. Laparoscopic salpingectomy was performed in 3 cases and laparoscopic detorsion in 1. All three resected specimens revealed hemorrhage and gangrene of the salpinx, with an associated cyst in one. The pediatric literature review, including our report, revealed 33 case reports and case series with 45 patients. Fifty-six percent of cases represented primary torsion, and 44% were secondary to underlying tubal pathology. Thirty percent of girls were premenarchal. The mean age at presentation and symptom duration were 13.2±2.1 years and 5.8±12.5 days, respectively. Fever and leukocytosis were present in 27% and 63%, respectively. Ultrasound, computed tomography scan, and magnetic resonance imaging showed a sensitivity of 22% (8/36), 14% (1/7), and 40% (2/5), respectively. A correct preoperative diagnosis was considered in only 13%. Eighty-eight percent of cases were treated by salpingectomy, and 12% were treated by tubal detorsion. Long-term outcomes of detorsion were not reported.

CONCLUSIONS

Isolated salpingeal torsion in girls is rarely diagnosed preoperatively, regardless of imaging technique. Laparoscopy is the intervention of choice for definitive diagnosis and management. Salpingectomy is the most frequent treatment. Detorsion without resection may be considered for selected cases, but the long-term outcomes of this approach are unknown.