The perineum is the set of soft parts that close the pelvic excavation at the bottom  . It consists of 3 large muscle planes (superficial, medium, deep). Introduced by Sir FIELDING OULD, in Dublin in 1742 to facilitate childbirth, episiotomy is in fact a perineotomy which is now common practice  . It consists of the section of a part of the perineum from the posterior corner of the vulva after distension of the perineum by the foetal pole in order to facilitate the exit of the child. It measures three to four centimeters in length on average and can be median or medio-lateral. Episiotomy aims on the one hand to avoid severe perineal tears in the short term and to prevent more long-term pelvic static disorders (genitourinary prolapse, stress urinary incontinence, anorectal lesions). On the other hand, it aims to shorten expulsion, reduce foetal trauma and facilitate obstetrical maneuvers  . First, episiotomy remained relatively confidential and during the 20th century became the most common obstetrical procedure performed in delivery rooms in the West outside the umbilical cord section. Traditional obstetric education saw in her an act of prevention of maternal and perinatal morbidity par excellence. The advent of evidence-based medicine at the end of the last century had a strong impact on medical practices, including episiotomy  .
Thus, the first review of the literature on the value of a systematic episiotomy policy dates back to 1983 and the first randomized trial on the subject dates from 1984   . Since then, other publications have regularly highlighted the lack of interest in a systematic episiotomy policy and the risks associated with carrying out such an act  . In recent years, there has been a varying reduction in the use of episiotomy in many countries.
In Burkina Faso, a study on the frequency of episiotomy was already carried out in 1998 showing a very high rate of practice (32.1%)  . However, since epidemiological aspects, indications and prognosis have not been studied, we propose to study these aspects in the health district of Bogodogo in Ouagadougou.
2. Materials and Method
The study was conducted in Ouagadougou, in the health district of Bogodogo. The health district of Bogodogo is one of the 65 health districts in the country. It forms with the health district of Baskuy, Boulmiougou, Nongremasson and Signongh in the 5 health districts of the capital. More specifically, it concerned four health facilities in this district. The health district of Bogodogo had an estimated population of 588,583 in 2016. This was a descriptive prospective study conducted from July 01 to October 30, 2016, a period of 04 months; the follow-up lasted until January 30, 2009. The study concerned parturient women who had given birth (after 28 weeks of amenorrhoea) vaginally with an episiotomy in the four health facilities and who were seen again on the 9th day and 3rd month. The analysis involved 248 women who gave birth vaginally with episiotomy in the study sites. Were not included in our sample the cases of fetal deaths in utero. The studied variables included:
・ socio-demographic characteristics (age, origin, marital and professional status);
・ risk factors (gynecological-obstetrical history, clinical status of the perineum);
・ indications of episiotomy;
・ the technique of realization of the episiotomy;
・ the experience of the episiotomy by the woman at the time of the practice and later;
・ the sexual experience of the woman;
・ complications (immediate and medium term).
Data were collected using a questionnaire developed for the study. The data collected by the collection cards were analyzed using the Epi-info software in its English version 3.5.1 of the C.D.C of Atlanta. Statistical comparisons were made using the Pearson chi-square test, with a significance level of p < 0.05. The study was approved by the ethic committee and also by patients.
3.1. Frequency of Episiotomy during the Study Period
During the 4 months of the study we recorded 813 cases of episiotomy for 3703 vaginal deliveries, an overall rate of 22%.
3.2. Socio-Demographic Characteristics
The average age was 23.1 ± 5 years with extremes of 15 and 40 years. The age distribution of patients was shown in Figure 1. The 15 - 19 and 20 - 24 age groups are the most affected, accounting for 38% of cases each.
The mean was 0.7 pare ± 1, with extremes of 0 and 5; Figure 2 shows the distribution by tench of parity. In our sample, nulliparous women are mostly represented, i.e. 60.5% of patients.
3.3. Data at Childbirth
The distribution of data at birth was presented in Table 1.
3.4. Indications for Episiotomy
The indications found are illustrated in Figure 3. Vulvo-perineal narrowing predominated in our sample in 186 patients, 75% of the indications.
Figure 1. Age distribution of patients.
Figure 2. Anterior childbirth distribution of patients.
Figure 3. Distribution of patients according to episiotomy indications.
Table 1. Childbirth data.
3.5. Type of Episiotomy
The main types of episiotomies are reported in Table 2. The mediolateral episiotomy was the most performed with 77.5% or 190 patients.
・ Immediate diaper suites
The evolution in immediate diaper suites has been summarized in Table 3.
・ Experience during episiotomy
The distribution of patients according to their experience during the episiotomy was represented in Table 4.
Patient’s condition on the 9th day. The evolution on the 9th day has been summarised in Table 5. One hundred and eighty-five (185) of our deliveries, or 74.6%, had a simple continuation. Forty (40) women, or 16.1%, had a suture release.
・ Condition at the 3rd month
Only 109 patients were seen after 3 months; that is 43.95% (Figure 4):
• Good healing was obtained in 98.2% of cases (107 cases);
• 56 patients had resumed sexual intercourse; 51.4%;
• The difficulties identified are mainly dyspareunia and a decrease in sexual sensitivity.
3.7. Study of the Factors Associated with Performing an Episiotomy
・ Excision and narrowing of the perineum
The relationship between excision and perineal narrowing is shown in Table 6.
Table 2. Distribution of patients by episiotomy type.
Table 3. Distribution of women giving birth according to the evolution of immediate childbirth.
Table 4. Distribution of women giving birth according to their experience during episiotomy.
Table 5. Distribution of women giving birth according to the evolution on day 9.
Table 6. Distribution of women giving birth according to the relationship between shrinking of the perineum and excision.
Chi2 = 15.8371 p = 0.00007, Statistically significant association.
Figure 4. Distribution of women giving birth according to complications found after 3 months.
・ Use of absorbable sutures and simple sequences
The relationship between the use of absorbable sutures and simple sequences has been shown in Table 7.
・ Limitations of the study
Table 7. Distribution of women giving birth according to the relationship between the use of absorbable sutures and simple sequelae.
Chi2 = 4.95 p = 0.0260, Statistically significant association.
Interviewing as a collection technique has not always led to objective answers. Also the long-term evolution (3 months) could not be evaluated in all the patients, because all did not return to the appointment of the 3rd month. Nevertheless our data are comparable to those of the literature.
・ The frequency
Episiotomy is a common practice in the maternity wards of the health district of Bogodogo. The overall rate during our study during the 04 months was 22%. Episiotomy is common worldwide, but rates vary from country to country. Thus, CHIGBU et al. found a 45% rate in southeast Nigeria  . MORHE et al. in Ghana found a rate of 17.4%  . In KASSAHUN et al. in Ethiopia, it was 40.2%  . In the United States, FRANKMAN et al. found 24.5%  . These large differences in episiotomy practice rates reflect large differences of opinion as to the usefulness of episiotomy. If the usefulness of the episiotomy in certain complicated deliveries is not to be questioned, its place in normal deliveries remains controversial  . The prevalence of the practice of excision in countries such as Ethiopia, Nigeria and Burkina Faso, where it is the rule, should also be noted.
・ Indications for episiotomy
In our study, the main indications for episiotomy were vulvoperineal narrowing (75% of cases) and perineal fissure (14.5% of cases). These indications constitute the direct consequences of excision and nulliparity. KASSAHUN (Ethiopia), CHIGBU (Nigeria) and AMILA (Qatar) reported in their studies that nulliparity was one of the main indications for episiotomy. The other indications cited by these same authors were the long duration of the second phase of labor, young age, instrumental delivery and dystocia presentations    . RIETHMULLER et al. in their study reported that nulliparity is a risk factor for the perineum and exposes it to a risk of severe perineal tears; it should not be a systematic indication of episiotomy  . For POEN et al., mediolateral episiotomy appeared to significantly protect against these perineal lesions in nulliparous (OR = 0.54)  . Moreover, for the RIETHMULLER team in potentially dystocic situations (fetal macrosomia, instrumental extraction, breech presentation, occipito-sacral presentation, perineal scarring, twin birth), there is not enough evidence to recommend the practice or not of episiotomy as well as its systematization.
• As a result of immediate diaper suites
The evolution was marked by pain, according to most of our patients (3/4). This pain was felt especially when sitting and walking. Several studies have focused on the pain associated with episiotomy. Thus LARSSON et al. showed that the first day of postpartum, after an episiotomy, was marked by a significantly greater frequency of pain and a greater use of analgesics (37% versus 13%, p < 0.001)  . Also another study conducted by MC ARTHUR et al. found that pain perceived by patients was greater in the 1st and 7th days after episiotomy than after 1st or 2nd degree tears, or when, the perineum had remained intact  . Similarly, in the study by DANNECKER et al.  , it was found that perineal pains in bed, sitting, walking and defecation were significantly more frequent in the immediate postpartum period in the case of episiotomy. In summary, in the immediate postpartum period, patients with episiotomies would complain of more perineal pain than those with intact perinea’s or 1st or 2nd degree tears. Tissue mortification could explain this discomfort.
• Experience during episiotomy
She was marked by pain, especially during the repair. This could be explained by the fact that anesthesia was used in only 31.3% of patients. Pain management should be better respected in all women in labor. Also, at the time of the section, the majority of patients could not distinguish pain from episiotomy from pain from uterine contractions.
• On Day 9
Patients reviewed on day 9 had a simple follow-up in the majority of cases 74.60%. Suture release occurred in 16.1% of cases. CHIGBU  in Nigeria found a lower rate of suture release, at 3%. The relatively high rate of suture release in our series could be explained by some of our traditional post-partum practices, namely hot water perineal cleansing; but also, the lack of hygiene (poorly maintained pads) and excessive patient mobilization before day 7. However, when the care given after the layer is well followed, the evolution is generally favorable with a good healing.
• In the 3rd month
In our study, of the women who were reviewed, about half (51.4%) had resumed sexual intercourse. The main difficulties they encountered were dyspareunia and a decrease in sexual sensitivity. One could explain the low rate of sexual resumption by the fact that in our West African societies, after childbirth, many women move in with their mother-in-law or join their paternal family for a few months. Also, dyspareunia could be explained by poor scarring or psychological trauma caused by pain during childbirth. The difficulties encountered during the resumption of sexual relations have also been reported by several authors. Thus LARSSON et al.  at the 8 - 12 week postpartum visit reported dyspareunia in 16% of patients who had an episiotomy versus 11% in those who had only a spontaneous tear (p < 0.05). However, 30% of the patients had not yet resumed sexual intercourse. Similarly, the study by SARTORE et al.  showed that 3 months after delivery the group with episiotomy had more dyspareunia than the group with intact perineum or with 1st or 2nd degree tears. In addition, READING et al.  analysed changes in sexuality through a questionnaire sent 3 months after delivery. Concerning the desire to have sexual intercourse, the pleasure obtained and the quality of the relationship, 15% to 24% of the patients considered that a change had occurred and attributed it in half of the cases to episiotomy. In the end, one could say that episiotomy seems to generate more dyspareunia during the first weeks of postpartum.
The WHO recommends for the clinical practice of episiotomy a rate of less than 20%. The episiotomy rate in our study was 22%. A program of continuous improvement of the quality of care concerning episiotomy encompassing various actions (audits, training) could reduce the use of episiotomies. A study in the general population would be needed to confirm our data.