Morbidity in Patients Undergoing Hypogastric Artery Ligation at Risk of Obstetric Bleeding

Perinatal mortality was 0%.

Bleeding is the leading cause of death secondary to hypovolemic shock, before this occurs, early onset of coagulopathy has been shown. Hypothermia, acidosis, and dilution resulting from common resuscitation actions can worsen coagulopathy [13,19,22]. The latter can be complicated by hypothermia and acidosis, both leading to defective clotting [7,12,14].
Callagan (2010 AJOG) concluded that cesarean delivery without induction of labor has higher rates of postpartum bleeding [5,8,10]. The American College of Gynecology and Obstetrics reports that the risk factors for postpartum hemorrhage are: Prolonged Labor, Precipitated Labor, Postpartum Hemorrhage History, Medium Lateral Episiotomy, Preeclampsia, Uterine Overdistension (macromic products, multiple pregnancy, polyhydramnios), Ethnic Asian and Hispanic, Corioamnioitis, Cesarean delivery [6,9,11,16,18,19]. In cases of postpartum hemorrhage, first-line treatment includes uterotonic agents with or without procedures intended for uterine capping. If the latter fails, the following treatment focuses on surgical procedures such as ligation of uterine/hypogastric arteries or hysterectomy, rescue surgeries associated with saving the patient's life [22].
Hypogastric artery ligation (H LAH) is a surgical technique by which internal (hypogastric) iliac arteries are ligate to its anterior branch [21,23]. The indications are classified into 2 types: Profilactica and Therapeutic: Prophylactic is when performed prior to a non-obstetric pelvic surgical procedure, for the sole purpose of preventing intense bleeding during surgery [21].
Terapeutica: This is when the ligature is performed after a non-obstetric pelvic surgical procedure, in order to inhibit bleeding secondary to the same surgery [21].

Results
A total of 38 postoperative women of hypogastric artery ligatures at risk of obstetric bleeding were included from June to December 2012 at the Regional General Hospital number 36 of the Mexican Institute of Social Security Puebla. The results found were analyzed below.

Journal of Gynecology and Women's Health
In question to cesarean delivery, they were classified according to the type of indication according to the clinical practice guide of the I.M.S.S. ""for the realization of C-section operation. July 2009": Absolute to 15 (39.47%) patients; 14 (36.84%) patients, as shown in the following table. The presence of transoperative bleeding in postoperative patients with hypogastric artery ligation was variable, with at least 550cc bleeding and maximum trans surgical bleeding of 4500cc. The details are shown in the following table (Tables 13 &14).  Reported to 24 (63.15%) patients who had obstetric hysterectomy + hypogastric artery ligation and 14 (36.84%) patients who were only given the ligature. A total of 41 live birth products were recorded (there were 3 multiple "gemelar" pregnancies), there was no perinatal death, the details are shown in Table 15 14 patients were documented (36.85%) who did not warrant hemotransfusion and 24 patients (63.15%) than if he used blood products Table 16.  During the transoperative period there was an average hemotransfusion of 1.12 "globular packages", 0.99 bag of "fresh frozen plasma" and 1.14 bag of "platelet concentrates"; During the postoperative period, an average hemotransfusion of 1.34 "globular packages", 0.81 bags of "fresh frozen plasma" and 0.71 bags of "platelet concentrates" were recorded. The details are shown in Table 17. The average hemoglobin value prior to hypogastric artery ligation is 12.85gr, and the average hemoglobin after the surgical event was 7.89gr as shown in the following table The nosocomial stay was reported in days of the patients studied being "hospitalized in gynecology and obstetrics floor" an average of 3.16 days and in UCIA an average of 1.79 days. The details are shown in Tables 18 & 19.   Of the 38 patients undergoing hypogastric artery ligation, 29 (76.31%) were recorded patients with single indication for LAH, as well as 9 (23.68%) patients had mixed indications, of which they can be broken down as follows. Of the patients who underwent hypogastric artery ligation, the most common single indication was uterine atonia recorded at 17 (44%) patients, in this study, the probability of performing hypogastric artery ligation by uterine atonia is Odds x 0.78. Of the 22 (57.8%) patients who had obstetric bleeding found 15 (68.18%) patients who had prior C-section history, so in this study, the probability of obstetric bleeding with prior C-section antecedent is Odds 2.12 (Tables 20 & 21).  Of the 38 patients in the study, 22 (57.8%) patients had obstetric bleeding, of these, 18 (47.36%) were recorded patients who culminated in obstetric hysterectomy, so in this study, the probability of culminating in hysterectomy with obstetric hemorrhage is Odds 4.2. Of the 38 patients undergoing hypogastric artery ligation (2 for each patient in our study) 1 (2.68%) patient with post-LAH complication, being in this study, the probability of presenting complications by odds hypogastric artery ligation 0.027 as shown in the following Tables 22-23. Table 22: It shows the report of patients who had obstetric hemorrhage with prior C-section history, the probability of bleeding probability in this Odds study 2.12.

This
Absent Total

Discussion
Postpartum bleeding remains one of the leading causes of death in underdeveloped countries, even if the resources are available to correct the post-mass blood loss problem. Perhaps one of the main causes of high maternal morbidity is the delay in resorting to surgical techniques, once conservative measures have failed.
Considering that postpartum hemorrhage is the second leading cause of maternal mortality in Mexico reported by SINAIS (National Health Information System), authors such as Reich and Nechtow [25,26]. believe that the hypogastric artery ligation technique is underused in the management of postpartum hemorrhage, probably due to fear of complications that may arise after this procedure. However, the American College of Obstetricians and Gynecologists (ACOG) recommends the ligation of hypogastric arteries as a useful procedure in the treatment of peripartum hemorrhage [27].
This study on hypogastric artery ligation in Obstetrics is not the first to be conducted in Mexico, but it is one of the first to contribute the HGR 36 IMSS San Alejandro Puebla. In our working universe 5562 births were recorded in the HGR 36 IMSS San Alejandro Puebla from June 2012 to December 2012, in which 3032 (54.5%) was reported births by vaginal delivery and 2530 (45.5%) C-section births. It was in the third decade of life, where the most frequent age was found, being the average age of 26.9 years, discordant to Hurtado Estrada's study (2009), which reports its average population of 37 years [28,29]. In our universe there was a frequency of 38 patients at risk of obstetric bleeding, who underwent ligation of hypogastric arteries, of which 9 (7.89%) patients completed their pregnancy by vaginal delivery and 29 (92.11%) C-section in the study period covered.
Patient parity was 2.5 +/-1.9 (0 to 5), the age of termination of pregnancy was on average 37.3 weeks with DE +/-2.72 (24-42 weeks). Gestational ages similar to those reported by A.Y. Shahin et al. (2010) [30]. The safety of the surgical technique of hypogastric ligation was checked at only 1 (2.63%) patient with complication after LAH, being in this study, the probability of presenting complications by ligation of hypogastric arteries Odds 0.027, result similar to that presented by Serrano Berrones (2013), who reports 1% complications in his study [28]. Uterine atonia (44.74%) it was the most common indication for the ligation of hypogastric arteries, followed by placental Acretism (7.89%), as in the study of VM Joshi and cols (2007) in which it was recorded as the main cause of uterine atonia with a frequency of 32.7% [25].
Of the 22 (57.8%) patients who had obstetric bleeding, 15 of them (68.18%) they had a previous C-section antecedent, so in this study, the probability of obstetric bleeding with prior C-section antecedent is Odds 2.12. Successful management of hypogastric artery ligation was recorded at 14 (36.84%) patients who were not performed obstetric hysterectomy, a result not far from that found in the Debasmita Mandal y cols study (2013) where 50% of cases prevented obstetric hysterectomy after ligation of hypogastric arteries [27]. Considering the volume of bleeding, we find in our study, an average bleeding of 1485cc, with DE +/-1027cc, similar figures can be observed in the study of Serrano Berrones (2013), who reports transoperative bleeding using the technique of ligation of hypogastric arteries from 500 to 2000cc. with an average of 1000cc [28].
Of the patients who required hemotransfusion, 63.15% deserved hemotransfusion, the remaining patients did not. The average transoperative hemotransfusion of globular package was 1.13 unit of globular package, 0.99 unit of fresh frozen plasma and 1.14 unit of platelet concentrates; the average postoperative hemotransfusion of globular package was 1.34; 0.81 unit of fresh frozen plasma and 0.71 unit of platelet concentrates. Compared to other authors such as Hurtado estrada (2009), who records an average of 2 globular packages after ligation of hypogastric arteries in his study [29], higher than in ours.
In relation to the average preoperative haemoglobin was 12.85gr with DE 1.45gr, the average postoperative of 7.89gr with DE 4.47gr, as well as the average preoperative hematocrit of 38.53 and the average postoperative of 23.63. The number of days of hospital stay after the hypogastric artery ligation procedure was recorded in hospital floor of 3.16 days OF +/-1.87 days, and in UCIA 1.79 days with DE +/-3.05. Compared to other studies such as Serrano Berrones (2013), which reports the number of days in regional hospital Mr. Adolfo López Mateos a maximum number of 23 days of hospitalization after the surgical procedure of ligation of hypogastric arteries 28, our figures were lower than those already mentioned.
Registered 1 (2.63%) with postoperative complication secondary to ligation of hypogastric arteries, distant result to authors such as Abel M and cols. (2009), who report up to 13.3% complications from post-ligation ureter ligation of hypogastric arteries [31]. Maternal mortality was found absent in our study. However, other authors have recorded mortality rates up to 6.7% after this procedure. In this research, although it is a descriptive study, with a sample of patients limited by time, it yielded important data in relation to patients with obstetric hemorrhage, such as the fact that there are no perinatal deaths, nor maternal deaths in patients undergoing hypogastric artery ligation, finding only one patient complicated from ureteral injury of all studies; this situation probably reflected the previous training of medical personnel in our hospital, implemented in recent times, but above all that the idea that "obstetric hysterectomy" is no longer the first surgical option for handling obstetric bleeding has changed.
With the analysis of the data obtained, an overview of the behavior of obstetric bleeding and its surgical management in this hospital unit was obtained. Future studies, probably comparative and/or experimental, may take into account the hypogastric artery ligation technique as a useful surgical procedure in the management of obstetric bleeding. Probably in order to check, compare and/or corroborate its usefulness to standardize and give better care to the pregnant patient at risk of obstetric bleeding. This is why the surgical technique of ligation of hypogastric arteries was observed as a safe, first-line procedure for the control of obstetric bleeding, so as more experience is gained and better results are achieved, a progressive increase in its application in women with obstetric bleeding will be seen by reducing morbidity and maternal mortality with optimal survival. Not forgetting that the effectiveness of the procedure will depend on its timely performing, adequate indication and good surgical technique.

Conclusion
Complication after ligation of hypogastric arteries was presented in 1 patient with ureteral ligation. There were no vascular complications. Maternal mortality was 0%. Perinatal mortality was 0%.