Uterine packing with chitosan-covered tamponade to treat postpartum hemorrhage

Efficacy of chitosan powder in reducing vaginal bleeding following a loop electrosurgical excision procedure: A randomized control trial

OBJECTIVE

To evaluate the efficacy of topical chitosan powder in reducing postoperative vaginal bleeding following a loop electrosurgical excision procedure (LEEP).

METHODS

In this randomized controlled trial, patients who underwent LEEP were randomly assigned (1:1) to the chitosan group, in which the wound area was sprayed with chitosan powder using a spray pump, or the control group. The primary outcome was the median quantity of vaginal blood lost in the early postoperative period (defined as within 6 h of the procedure).

RESULTS

The 124 women enrolled in the study were randomly divided into control (n = 61) and chitosan (n = 63) groups. The median amount of vaginal blood loss during the early postoperative period was significantly lower in the chitosan group than in the control group (198.85 [64.4-388.57] mL vs. 250.60 [67.7-552.87] mL; P < 0.001). The rate of late postoperative bleeding requiring hemostatic intervention was also lower in the chitosan group than in the control group (3.2% vs. 16.4%; P = 0.013). Superior cervical wound healing in the chitosan group compared to the control group was also observed.

CONCLUSION

The application of chitosan powder to the cervical wound bed can improve surgical outcomes by decreasing post-LEEP vaginal bleeding and facilitating the healing of cervical wounds.

A SEIPS-Based Analysis to Understand Safety Culture During Postpartum Hemorrhage

Background/Objectives: Maternal mortality occurs at alarming rates in the United States. In 2018, there were 17 maternal deaths for every 100,000 births-double that of other high-income countries, including France and Canada. Postpartum hemorrhage (i.e., excessive blood loss during delivery or within the 24 h following) is a leading cause of maternal mortality and is a treatable condition if identified and managed in a timely manner. One aspect of work that impacts patient care during postpartum hemorrhage is the safety culture. The safety culture is the beliefs, values, and norms shared by members of the organization that influence their actions and behaviors. In this study, we use the Systems Engineering Initiative for Patient Safety (SEIPS) model to understand and describe how the sociotechnical system shapes safety culture during postpartum hemorrhage. Methods: We conducted interviews and focus groups with 29 clinicians to describe the work system and the barriers and facilitators during postpartum hemorrhage. Then, we inductively categorized the barriers and facilitators into emergent properties of sociotechnical systems related to safety culture. Results: We identified 45 barriers and 158 facilitators into five emergent properties related to the safety culture (i.e., staffing, communication, organizational management and leadership, organizational processes, and teamwork). The participants identified more positive aspects than negative, suggesting that the safety culture positively influences their actions and behaviors. Conclusions: Our results indicate that safety culture could be improved by redesigning the work system to mitigate barriers related to staffing, communication, organizational management, and teamwork that hinder the safety culture.

Chitosan-covered tamponade for the treatment of postpartum hemorrhage: a registry-based cohort study assessing outcomes and risk factors for treatment failure

BACKGROUND

Postpartum hemorrhage (PPH) is one of the leading causes of maternal morbidity and mortality worldwide. Intrauterine hemostatic devices are recommended when PPH does not respond to medical treatment. The objective of this study was to assess the factors leading to unsuccessful intrauterine therapy with a chitosan-covered tamponade (CT) for the treatment of PPH and to evaluate clinical outcomes based on real-world data.

METHODS

This registry-based cohort study included all women treated with CT for PPH between January 2017 and June 2022 at a university clinic's perinatal department. The endpoint was defined as the failure of CT, indicated by the requirement of further invasive procedures for ongoing hemorrhage after CT application. Medical records were reviewed and binary logistic regressions used to evaluate delivery mode, placenta previa, and placenta accreta spectrum as potential risk factors for CT treatment failure.

RESULTS

The cohort consisted of 230 women, with successful CT treatment in 91.3%. The success rate for mild PPH was 100.0%, for moderate 95.5%, and for severe 84.2%. Five hysterectomies were performed in total. Placenta previa in cesarean sections was identified as the primary risk factor for CT treatment failure, increasing the odds about 7.5-fold (Odds Ratio: 7.48; 95% CI: 1.87-33.15) compared to cesarean sections without placenta previa. Furthermore, delays in CT insertion may also contribute to treatment failure.

CONCLUSION

CT serves as an intrauterine treatment for medically intractable PPH. Placenta previa significantly increases the risk of CT treatment failure in cesarean sections. Obstetricians should be particularly vigilant in managing patients with placenta previa and consider early use of CT or a combination of procedures.

TRIAL REGISTRATION

This study was approved by the local Ethics Committee on 11/10/2021 (EA4/231/21).

Postpartum Ultrasound: An Indispensable Tool in the Labor Ward

Postpartum hemorrhage can occur because of different conditions. Apart from placental remnants and uterine atony, less common causes include uterine rupture, placental polyps, arteriovenous malformations, and pseudoaneurysms. Ultrasound plays a key role in the precise definition of the underlying pathology, which is necessary to initiate the appropriate therapy. It also helps to depict intraabdominal hematomas and uterine scar dehiscence, 2 conditions that do not necessarily lead to postpartum hemorrhage but are associated with increased maternal morbidity. This article presents 52 ultrasound images together with clinical and histopathologic images to give an overview of both frequent and rare pathologies in the postpartum period.

Chitosan Gauze in the Management of Acute Postpartum Hemorrhage in a Mexican Third-Level Institution: A Case Report

Obstetric hemorrhage is the main cause of maternal death worldwide; over the years, its management has been based on uterotonic drugs as well as definitive and non-definitive surgical techniques. We report the case of a patient with multiple risk factors for obstetric hemorrhage who was given the classic management for postpartum hemorrhage before the addition of chitosan gauze, which resulted in adequate remission of the condition. The patient had an adequate in-hospital evolution; the chitosan gauze was removed after 24 hours, and she was discharged after 48 hours without active bleeding. When identifying women at high risk of obstetric hemorrhage, having chitosan gauze in the operating room could be a point of good care.

Using Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) as a Rescue Strategy in Severe Postpartum Hemorrhage: A Case Report

Postpartum hemorrhage (PPH) is a leading cause of maternal morbidity and mortality. Routine treatment of PPH includes uterotonics, tranexamic acid, curettage, uterine (balloon) tamponade, compression sutures, uterine artery ligation, and, if available, transcatheter arterial embolization (TAE). In cases of severe PPH refractory to standard medical and surgical management, hysterectomy is usually the ultima ratio, and is equally associated with a higher rate of complications. In addition, this sudden loss of fertility, especially in young women, can be devastating. Here, we report a case of a 29-year-old woman who suffered from severe PPH with a blood loss > 1500 mL and hemodynamic instability after delivery of her first baby at a smaller hospital. She was consequently successfully treated with resuscitative endovascular balloon occlusion of the aorta (REBOA) by first placing a balloon catheter into the infra-renal aorta and subsequent TAE after failure of all other available treatment options prior to hysterectomy. TAE has been suggested in PPH treatment to avoid hysterectomies and thus to preserve patients' reproductive function. If hemodynamic stabilization cannot be achieved with mass transfusion, REBOA seems to be an effective rescue strategy with which to achieve hemodynamic stabilization and gain additional time for embolization. Although REBOA is already recommended in several PPH guidelines, this approach seems relatively unknown in German-speaking countries.

Parturition at term: induction, second and third stages of labor, and optimal management of life-threatening complications-hemorrhage, infection, and uterine rupture

Childbirth is a defining moment in anyone's life, and it occurs 140 million times per year. Largely a physiologic process, parturition does come with risks; one mother dies every two minutes. These deaths occur mostly among healthy women, and many are considered preventable. For each death, 20 to 30 mothers experience complications that compromise their short- and long-term health. The risk of birth extends to the newborn, and, in 2020, 2.4 million neonates died, 25% in the first day of life. Hence, intrapartum care is an important priority for society. The American Journal of Obstetrics & Gynecology has devoted two special Supplements in 2023 and 2024 to the clinical aspects of labor at term. This article describes the content of the Supplements and highlights new developments in the induction of labor (a comparison of methods, definition of failed induction, new pharmacologic agents), management of the second stage, the value of intrapartum sonography, new concepts on soft tissue dystocia, optimal care during the third stage, and common complications that account for maternal death, such as infection, hemorrhage, and uterine rupture. All articles are available to subscribers and non-subscribers and have supporting video content to enhance dissemination and improve intrapartum care. Our hope is that no mother suffers because of lack of information.