Uterine Scar Evaluation during the Postpartum: Pleading for Extradecidual Suturing during Cesarean Section.

OBJECTIVE: Our objective is to evaluate ultrasound differences in uterine scar between techniques using extramucosal suturing and full thickness suturing of the uterine incision. STUDY DESIGN: A retrospective observational study included cases of primary cesarean section. At 6-week postpartum, we evaluated by endovaginal ultrasound two elements in the sagittal view: the thickness of the uterine scar and the surface of defect (niche). Hysterotomy sites closed using a running full-thickness technique including the uterine mucosa (group 1) were compared to hysterotomies operated by the same surgeon but with extramucosal suturing (group 2). The operator switched from the running suture technique to extramucosal in 2013. RESULTS: The study included 241 patients (115 cases in group 1 that were compared to 126 cases in group 2). There were no significant differences in age or body mass index between the two groups. Cesarean scar and niche were detectable in the entire studied population. There was a significant difference in both uterine scar thickness (5.8 vs. 6.2 mm, p = 0.02) and the presence and size of the niche (49 vs. 40 mm2, p = 0.001) in transvaginal ultrasound performed at 6-week postpartum. CONCLUSION: Extramucosal suturing of the uterine scar seems to be associated with a better outcome on the postpartum ultrasound evaluation. KEY POINTS: · The technique for suturing the hysterotomy can be the source of healing changes.. · An extramucosal suturing of the uterus seems to give a better aspect at the postpartum ultrasound.. · Decreasing the niche at cesarean scar may be beneficial for future pregnancies..

Inferior vena cava filter migration during the prone position for spinal surgery: a case report.

PURPOSE: Inferior vena cava (IVC) filters have been used as an alternative therapy for patients with a contraindication to anticoagulation. We present a case of an IVC filter migration to the right ventricle occurring while a trauma patient was undergoing spinal surgery in the prone position. The patient provided written consent to describe this case. CLINICAL FEATURES: A 54-yr-old multiple trauma male patient with an unstable fracture of the T6 vertebra and a stable fracture of the T10 vertebra developed a pulmonary embolism secondary to a left common femoral deep vein thrombosis. An IVC filter was placed so that an intravenous unfractionated heparin infusion could be stopped two days before scheduled spinal surgery. Intraoperatively, the patient was placed in the prone position on conventional convex support pads. At the end of the procedure, he developed ventricular trigeminy which lasted three minutes. During the next 48 hr, the patient developed a fever of 39°C. An echocardiogram was performed to rule out endocarditis, and results showed that the IVC filter had migrated into the right ventricle. After a failed attempt at percutaneous removal of the filter in the catheterization laboratory, the patient was transferred to the operating room and the IVC filter was extracted through a midline sternotomy under cardiopulmonary bypass. CONCLUSIONS: The prone position during surgery can induce anatomic and hemodynamic changes in the IVC. This may contribute to the migration of IVC filters--especially flexible retrievable filters. Careful handling and positioning of patients with IVC filters is recommended to avoid a sudden increase in IVC pressure that may predispose to IVC filter migration.

Pulmonary migration of a fragment of plastic coating sheared from a stylet.

BACKGROUND: In trauma patients, particularly with head immobilization, tracheal intubation without the use of a stylet may be impossible. OBJECTIVES: To report a very rare but potentially fatal complication that may happen in any Emergency Department: fracture of the plastic sheath of an intubation stylet, reported only twice before in the literature. CASE REPORT: Two large plastic fragments detached from a stylet while intubating a trauma patient. One piece was removed from the endotracheal tube a few hours later in the operating room. The second fragment migrated asymptomatically into the pulmonary airway. It was successfully retrieved from the right bronchus 24 h later. CONCLUSION: This potentially life-threatening event may go unnoticed after intubation if the endotracheal tube is not obstructed by the fragment. Gentle withdrawal of the stylet from the tube is essential to avoid stylet fracture. Careful examination of the stylet after intubation may suggest a stylet fracture.

Prediction of difficult laryngoscopy and/or intubation among morbidly obese patients: Upper lip bite test versus modified Mallampati classification.

INTRODUCTION: We aim to compare the upper lip bite test with the modified Mallampati test as predictors of difficult laryngoscopy and/or difficult intubation among morbidly obese patients. METHODS: A total of 500 morbidly obese patients (body mass index > 40 kg/m2) undergoing general anaesthesia with tracheal intubation are included in this prospective single-blinded observational clinical study. The preoperative airway assessment is obtained by the modified Mallampati test and upper lip bite test. The difficulty of laryngoscopy is assessed by an experienced anaesthetist in patients adequately anaesthetised and fully relaxed. The view is classified according to Cormack and Lehane's classification. Modified Mallampati test III or IV and upper lip bite test III are considered positive tests. Difficult laryngoscopy is defined as Cormack and Lehane's classification III and IV, whereas difficult endotracheal intubation is defined as an intubation difficulty scale ⩾ 5. RESULTS: The incidences of Cormack and Lehane's classification III and IV and intubation difficulty scale ⩾ 5 are 9.4% and 11.8% respectively. The specificity, positive predictive value and accuracy are higher with the upper lip bite test. The combination of the upper lip bite test and the modified Mallampati test improved these measures. The likelihood ratio + was significantly higher for the upper lip bite test (6.35 and 9.47) than for the modified Mallampati test (3.21 and 3.16). CONCLUSION: The upper lip bite test is a test with high sensitivity, specificity, negative predictive value and accuracy making it a favourable test for identifying easy and difficult intubations and laryngoscopies in morbidly obese patients.

Effect of intravenous crystalloid infusion on postoperative nausea and vomiting after thyroidectomy: a prospective, randomized, controlled study.

BACKGROUND AND OBJECTIVE: Intravenous administration of compound sodium lactate (CSL) 30 ml kg to women undergoing gynaecological laparoscopy reduced the incidence of vomiting, nausea and antiemetic use when compared with 10 ml kg. The aim of this study was to evaluate the effect of intravenous fluid administration on nausea and vomiting after thyroidectomy. METHODS: With ethics committee approval, 100 patients scheduled for thyroid surgery were included in this prospective, controlled, double blind study. Patients were randomized into two groups: the CSL-10 group (n = 50) received CSL 10 ml kg and the CSL-30 group received CSL 30 ml kg; the administration of fluid was completed by the end of surgery. Standardized anaesthesia was performed. The incidence of nausea and vomiting and need for antiemetics and analgesic therapy were assessed by a blinded observer at 0.5, 2, 6, 12, 18 and 24 h after surgery. Patients' satisfaction was also recorded (0-100). RESULTS: The incidence of nausea (64%) was similar in both groups (P = 0.1). The incidence of vomiting was 34% in the CSL-10 group and 32% in the CSL-30 group (P = 0.83). Antiemetics (P = 0.84) and analgesic consumption (P = 0.72) did not differ significantly between the two groups. Patients' satisfaction was also comparable (P = 0.39). CONCLUSION: Intravenous administration of CSL 30 ml kg to patients undergoing thyroidectomy did not reduce the incidence of nausea, vomiting and antiemetic use when compared with CSL 10 ml kg.

Preoperative fasting: Assessment of the practices of Lebanese Anesthesiologists.

BACKGROUND: Although new guidelines developed by the American Society of Anesthesiologists (ASA) recommend a liberalized preoperative nutrition, authorized clinical practice guidelines or recommendations have not yet been proposed by the Lebanese Society of Anesthesia (LSA). OBJECTIVE: The purpose of this study was to examine Lebanese anesthesiologists' preoperative fasting routines and determine their knowledge and acceptance of the ASA recommendations, their attitude toward liberalized fasting, and the factors favoring their nonadherence to the new recommendations. MATERIALS AND METHODS: This study was conducted in university hospitals, affiliated hospitals, and nonuniversity hospitals located in different regions of Lebanon. The survey was approved by the local ethics committee. A written questionnaire was emailed to all anesthesiologist members of the LSA which was completed anonymously. RESULTS: Out of the 294 anesthesiologists registered in the LSA and who read the email, 118 (40.1%) completed the questionnaire. Of respondents, 90% are aware of the latest ASA practice guidelines for preoperative fasting, and 78.7% claim to apply them in their practices; however, 75% of respondents still require adult patients to stop eating after midnight, and only 45% allow them to drink clear fluids up to 2 h preoperatively. One of the main reasons for not complying with the ASA guidelines was "to allow flexibility for changes in the operating schedule." CONCLUSION: A long preoperative fasting period is still the common practice for Lebanese anesthesiologists. National guideline for preoperative fasting as liberal as that recommended by the ASA should be considered.

Obstetric admissions to the intensive care unit: an eight-year review.

BACKGROUND: Between 0.1 and 0.9% of women develop complications of pregnancy that require admission to an intensive care unit (ICU). The purpose of this study was to review all obstetric patients admitted to the ICU over an 8-year period to determine the causes and outcomes of these admissions and the frequency and causes of maternal mortality. METHODS: This retrospective study was based on all obstetric patients admitted to the ICU at Hôtel-Dieu de France hospital (January 1998-December 2005). Data collected includes maternal age, gestational age, parity, past medical and obstetric history, delivery data, indication for ICU transfer, complications, ICU length of stay and death during hospitalization. Specific interventions were recorded. RESULTS: A total of 15 patients were admitted during the 8 years. The frequency of admissions was 0.24% of deliveries and obstetric patients represented 0.43% of all ICU admissions. The mean duration of stay in ICU was 7 +/- 5 days. The indications for admissions were preeclampsia (26.7%), sepsis (26.7%), obstetric hemorrhage (20%), cerebral encephalopathy (6.65%), amniotic fluid embolism (133%) and preexisting medical problems (6.65%). Fourteen patients (93%) had invasive monitoring and 9 patients (60%) required ventilation. There were five deaths, representing 333% of obstetric ICU admissions. CONCLUSION: The need for maternal intensive care should be one of the most important measure considered in the quality of maternal care. Early admission and management of critically ill obstetric patients in the ICU may decrease maternal mortality and morbidity.

Use of remifentanil and propofol without muscle relaxant combined with intrathecal morphine in children with Duchenne's muscular dystrophy undergoing spinal surgery.

Duchenne's muscular dystrophy (DMD) is the most common and severe form of myopathy occurring in pediatric patients. Sensitivity of patients with DMD to sedative, anesthetic and neuromuscular blocking agents may result in intraoperative and early postoperative cardiovascular and respiratory complications, as well as prolonged recovery from anesthesia. Anesthetic management of these patients is challenging and may cause serious problems to the anesthesiologist. We report the use of a total intravenous anesthesia technique (TIVA) with remifentanil and propofol without muscle relaxants, associated with intrathecal morphine in three children with DMD undergoing posterior spinal surgery (PSS). Tracheal intubation was successfully done with good conditions. The intraoperative course of these patients was uneventful. Controlled hypotension, rapid recovery and uneventful postoperative period were achieved with this technique. In conclusion, good conditions for tracheal intubation, controlled hypotension, rapid recovery and uneventful postoperative period can be achieved with this anesthesia technique in patients with DMD.

Prevention of hypotension after spinal anesthesia for cesarean section: 6% hydroxyethyl starch 130/0.4 (Voluven) versus lactated Ringer's solution.

GOALS: The aim of this study is to compare the efficacy of HES 130/0.4, a new hydroxyethyl starch, to lactated Ringer's solution (LR) in the prevention of hypotension after spinal anesthesia for cesarean section (CS). MATERIAL AND METHODS: One hundred and twenty nonlaboring ASA I and II women having non urgent CS were enrolled in this prospective and randomized study. Subjects were randomly assigned to receive prior to anesthesia either 1 liter of LR (Gr I: n = 59) or 500 ml of HES 130/0.4 (Gr II : n = 61). Blood pressure was measured until discharge from the post anesthesia care unit. Hypotension was treated with i.v. boluses of 3 mg of ephedrine. The nausea scale was recorded. Arterial and venous umbilical blood gazes were obtained. Data were compared using Mann-Whitney U-test and Student's t-test (p < 0.05 was significant). RESULTS: Thirty-nine patients in Gr II while 48 pts in Gr I experienced hypotension (p = .033). The total dose of ephedrine was statistically smaller in Gr II compared with Gr I (p = .001). Nausea after induction of spinal anesthesia occurred with similar frequency in both groups. Neonatal outcome was excellent and similar in both groups. CONCLUSION: HES 130/0.4 is more effective than LR to prevent hypotension following spinal anesthesia for CS; its routine use in this purpose should be considered.

The accuracy of non-invasive nasal capnography in morbidly obese patients after bariatric surgery.

STUDY OBJECTIVE: to assess the accuracy of nasal capnography for the monitoring of ventilation in extubated morbidly obese patients, following bariatric surgery. DESIGN: prospective descriptive study. SETTING: Post-anesthesia care unit. PATIENTS: 25 consecutive morbidly obese patients admitted to the PACU after open bariatric surgery. INTERVENTION: Patients had a nasal cannula designed to administer oxygen (3 L/min) and to sample expired CO2 by a coaxial catheter. MEASUREMENTS: Capnographic waveform, end-tidal CO2 (ETCO2) and respiratory rate (RRd) were displayed by a capnometer (Datex-Ohmeda). Arterial CO2 pressure (PaCO2) was measured by blood gas analysis. Respiratory rate was measured by visual inspection of chest breathing motions (RRm). Differences between PaCO2 and ETCO2 and between RRd and RRm were calculated for every simultaneous set of measurements. RESULTS: Bias, precision, limits of agreement (bias +/- 2 precisions) between PetCO2 and PaCO2 were respectively as follows: 3.1, 1.4, 0.3 to 5.9 mmHg with a Pearson correlation coefficient of 0.6 and a P value of 0.001. As for RRd v/s RRm the values were: 2, 0.5, 1 to 3 breaths per minute and 0.8 with the same P value for the Pearson coefficient. CONCLUSION: Limits of agreement between PaCO2 and ETCO2 pressure and between RRd and RRm are clinically acceptable. Nasal capnography is accurate for the monitoring of ventilation in extubated morbidly obese patients, following bariatric surgery.

Intubating laryngeal mask airway combined to fibreoptic intubation in subglottic stenosis.

We reported a successful airway management in a patient with unknown tracheal stenosis admitted in the emergency room for benzodiazepine overdose. The use of intubating laryngeal mask airway in combination with fibreoptic intubation was easy and safe in this patient; procedures such as ventilatory control and patient oxygenation were continued during intubation attempts, lessening the likelihood of desaturation. This method allowed the diagnosis of tracheal stenosis and soft endotracheal intubation.