Ms. F., aged 32, with no background particular pathological conditions, was sent by the obstetric gynecologist for abdominal pain on pregnancy of 30 SA. This pain was associated with postprandial vomiting late, a stoppage of materials and gases for 3 days. At admission the general condition was good, the temperature at 37˚C, the pulse = 98 beats/min, the blood pressure was 130/80 mmHg. Examination has shown abdominal asymmetry the inspection, a diffuse pain all over the abdomen without defense, uterine height to 20 cm. Percussion found a tympanism in the epigastrium and the left hypochondrium. An accentuation of the noiseshydro-aerials was found at the auscultation, the Fetal heart sounds were regular at 144 beats/min. With the vaginal touch, the cervix was long, posterior and closed. The rectal bulb was empty at Rectal touch.

The abdominopelvic ultrasound showed a digestive distension with intravenous effusion peritoneal associated with intrauterine pregnancyscalable of 30SA (Figure 1: volvulus on pregnancy ultrasound).

The diagnosis of intestinal obstruction on pregnancy has been retained, imposing a laparotomy. Exploration has highlighted: a pregnant uterus, a very distended sigmoidal loop volvated to a turn of turn clockwise without necrosis (Figure 2: volvulus on pregnancy without necrosis). There was a fluid effusion of 100 cc we have aspirated. We performed a sigmoidal detorsion more peritoneal toilet with saline serum and closing of the abdominal cavity.

The suites were simple. The patient gave birth bylane 45 days later from a newborn to term in which the examination was normal.

Ms. F.D., 30 years old, was sent to the emergency room by the Kadiolo health

center for occlusive syndrome.

The beginning went back to 4 days by a brutal pain peri-umbilical associated with vomiting and stopping materials and gases in a context of amenorrhea 28 weeks. The examination found a Karnovski 70% with fever at 39.3˚C, tension at 100/60 mm Hg, a pulse of 112 beats/min and a frequency respiratory rate of 28 cycles/min. the abdomen increased volume and asymmetrical carries a scar under medial umbilical. At the palpation, there was a diffuse abdominal pain with defense. Examination gynecological highlighted a uterus increased by size, a long neck of 2 cm closed median and whitish leucorrhoea brought back by the fingerstall. The touched rectally, the Douglas was bulging and painful, the empty rectal ampoule.

X-ray of the abdomen without preparation has objectified a girder arch double jamb repressed upwards by uterine opacity (Figure 3: ASP double jamb image). Ultrasound showed a significant digestive distension associated with intraperitoneal effusion and pregnancy evolutionary 28 weeks. The diagnosis of peritonitis on pregnancy was retained thus imposing a surgical exploration. The median laparotomy above and under umbilical has shown: an effusion sero 200 cc, a necrotic sigmoid loop volvated in 2 turns of turns clockwise, and necrosis of the hail, a pregnant uterus (Figure 4: volvulus on pregnancy with necrosis).

We proceed to a suction of liquid, a Resection of the small bowel with end-to-end anastomosis.

A sigmoidectomy followed by a colostomy.

Hartmann. The postoperative course was simple after the operation. The patient gave birth by lane two months later from a newborn to term.

Restoration of continuity has been achieved. Six months later, the aftermath of the recovery was simple.

The frequency of pregnancy occlusion is estimated at 1/3600 pregnancies; the main reported causes were the flanges and the volvulus of the sigmoid [4] .

Intestinal occlusion by sigmoid volvulus is very rare during pregnancy [5] . In 8 years we found 2 cases. According to Khanna (India) in 1999 only 73 cases have been reported in the literature world [1] and Chourak (Morocco) in 2009 found 76 cases of volvulus on pregnancy in the world [2] . The gestational age of our patients ranged from 28 to 30 SA which is comparable to 22 - 38 S.A. de literature [5] [6] [7] . Many authors have made a relationship between the means of attachment of the sigmoid and the volvulus [6] [7] .

The 4-day consultation period of our study was Twice as long as that of Goundo (2006) who had does his work on sigmoid volvulus in general [8] .

This could be explained by the difficulty of diagnosis of intestinal obstruction during pregnancy the signs are falsely attributed to a threat premature delivery.

The clinical diagnosis is based on the triad: pain, stopping of materials and gases, vomiting and physical signs. Biological signs are not specific. Ultrasound allows to objectify a digestive distension, intraperitoneal effusion and a pregnant uterus specifying the age of pregnancy and fetus vitality according to Musoke (Uganda) the first intension examination [9] . But this is the X-ray of the abdomen without preparation which breaks the positive diagnosis of volvulus, the fear of irradiation of some authors remains unfounded because it takes ten times the dose an ASP to have 0.01 Gray that is the dose with a congenital malformation risk of 1/1000 [3] .

Treatment consists in lifting the obstacle, avoiding the recurrence, allowing the pregnancy to progress to term if possible; in any case the mother’s life is the priority. All our patients benefited fromtocolysis, from a resuscitation of 30 minutes to 2 hours.

According to Twité [3] , the management of an occlusion on Pregnancy requires essential rehydration to ensure uterine blood flow and maintain the fetal vitality. Surgical treatment was the resection plus Hartmann-type colostomy once.

This technique was the most used according to the literature [10] [11] [12] despite having rare cases of remissions pontaneous reported by De U in India [11] . This attitude is explained by the delayed diagnosis and therapeutic that results in local conditions (necrosis, unprepared colon) and general preventing endoscopic detorsion. In all cases, the gesture minimum would increase the chance of having suites simple operatives for the mother and the fetus [13] .

The operative sequences were simple in both cases, they gave birth normally.

We did not have any maternal or fetal deaths.

Wamoto in Japan also reported a death case in utero fetal and maternal death postoperatively immediate [14] . Fetal mortality is close to zero in the first quarter, it is 36% and 64% respectively in the second and third quarters of pregnancy [3] .