Charles Osalumese Imarengiaye

• MBBS
• Professor (Full) at University of Benin Teaching Hospital

Objective: To evaluate the use of whole blood and blood products in our ICU to determine patterns and outcome after transfusion. Design: This study was a retrospective, case-control review of all patients who were transfused with blood during their ICU stay. Setting: The Intensive care unit of the (ICU) University of Benin Teaching Hospital, a seve...

Background: Post-operative nausea and vomiting (PONV); early or late, has detrimental effects on surgical patients such as surgical wound disruption, esophageal tear and delayed discharge from the post anesthetic care unit. This study evaluated the effects of dexamethasone-metoclopramide (DM) in the prevention of early and late PONV in women under...

Background: It is desirable that nursing mothers should return to normal activities so as to encourage early care of the newborn. This desire will be met if the common postpartum maternal morbidities are identified and managed accordingly. Objective: To identify and characterize postpartum pain in the immediate postpartum period after vaginal or...

Objectives: To evaluate the clinical correlates of women who received pain relief in labour with lumbar epidural analgesia and also investigate the labour outcome. Materials and methods: A hospital -based case-control study conducted in a tertiary care facility in Nigeria. The clinical characteristics and delivery outcome of women who had epidur...

Paediatricians are required to attend all Caesarian sections, yet most neonates so delivered do not require complex resuscitations necessitating a paediatrician's presence. All Caesarean sections in the University of Benin Teaching Hospital from January to December 2009 were prospectively studied. The socio-demographic characteristics, indication a...

This study determined the quality of perioperative analgesia and side effect profile of spinal bupivacaine plus pethidine for caesarean section. Patients were randomised to receive 2.0mL of bupivacaine + pethidine 7.5mg or 2.0mL bupivacaine + saline of equal volume. Spinal anaesthesia was instituted at L2/3, L3/4 or L4/5 using a 25G pencil point sp...

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We report the anaesthetic management of two achondroplastic patients who presented for emergency cesarean section. Regional anaesthesia could not be done in both cases as a result of technical difficulties and general anaesthesia was performed. Airway management was done with two different techniques following airway assessment. The perioperative p...

The objective of this work is to audit blood utilization by different specialties in the hospital using the Cross-match ratio as a guide to achieving effective transfusion practices. This was a prospective study. The blood bank of University Teaching Hospital in Benin City, Nigeria was used for the study. We analysed all blood orders from January t...

Pain after vaginal delivery can interfere with the activities of daily living. We hypothesized that epidural medication administered after delivery would be of benefit for acute postpartum pain management. The objective of this study was to assess whether epidural morphine after vaginal delivery would reduce the analgesic requirements for perineal...

Ambulatory surgical care accounts for over 70% of elective procedures in Northern America. Ambulatory paediatric surgical practice is not widespread in Nigeria. This report examined clinical indicators for quality care in paediatric ambulatory surgery using common outcomes after day case procedures as benchmark. This was a cross-sectional study of...

The safety of the pneumatic tourniquet lies in the fact that the pressure generated beneath it can be determined and is reproducible unlike the rubber bandage tourniquet with subjective and irreproducible tissue pressure. Application of the rubber bandage over the cuff of an aneroid sphygmomanometer enabled direct determination of tourniquet pressu...

Pain free immediate postpartum period may encourage return to normal activities of daily living. To identify the place of postpartum perineal pain as morbidity in the immediate postpartum period. This prospective study included women who delivered in the Maternal Fetal Medicine Unit of the hospital. All women over 18 years who were delivered of a l...

Background: The world burden of trauma is increasing more so in developing countries with increasing incidence of road traffic accidents, urban and rural violence, as well as natural and man-made disasters. A key determinant of outcome following trauma is the level of preparedness of the health care system. This study evaluated the preparedness of...

To evaluate the factors affecting the choice of anesthetic technique for cesarean section in women with placenta previa. In this retrospective study, the records of the Labor Ward Theatre of the University of Benin Teaching Hospital, Benin City, Nigeria were examined from January 2000 to December 2004 to identify all the women who had cesarean sect...

We describe cardiac arrest after plain bupivacaine spinal anaesthesia in a 28-year old woman who was admitted for an elective caesarean section. After preoperative evaluation and premedication she received a spinal anaesthesia in the L3-4 interspace with plain bupivacaine 0.5%. After being replaced in the supine position she reported difficult brea...

The cause of preeclampsia remains unknown and calcium and magnesium supplement are being suggested as means of prevention. The objective of this study was to assess magnesium and calcium in the plasma and cerebrospinal fluid of Nigerian women with preeclampsia and eclampsia. Setting was University of Benin Teaching Hospital, in Nigeria. It was a cr...

A prospective study was carried out to determine the incidence of intercurrent medical diseases and peri-operative course of such patients presenting for surgery under anaesthesia at the University of Benin Teaching Hospital, Benin City, for a period of twelve months.(March 2002 - February 2003). All patients presenting for surgery at our general m...

Blood and blood products are scarce in developing countries due to increasing demand and declining supply. Rational utilization of blood products is imperative and prompted this study, which identifies the risk factors for blood transfusion during C-sections in a tertiary hospital in Nigeria. This retrospective case-controlled study reviewed all C-...

Postdural puncture headache remains a major complication of subarachnoid anaesthesia that bothers the anaesthetist and the young mother. Identification of factors that may affect PDPH after caesarean section under subarachnoid anaesthesia could be critical to policy formulation in an emerging obstetric anaesthesia unit. All patients who had caesare...

To evaluate the risk of probable iatrogenic hepatitis C virus (HCV) infection following transfusion of donor blood that has not been screened for HCV. Prospective study. Screening for human immunodeficiency virus and hepatitis B virus is routine in the University of Benin Teaching Hospital. HCV screening was performed on transfused bags of donor bl...

Maternal mortality related to anaesthesia is low compared with that resulting from obstetric factors in developed countries. The role of anaesthesia in maternal mortality in developing countries is obscure. The purposes of this study were to determine the incidence of maternal mortality related to anaesthesia, to analyse the causes and to suggest m...

This study sought to determine the clinical correlates of the demand and utilisation of labour analgesia resources by Nigerian women in labour. All consenting women were interviewed on arrival at the Unit and while in labour. Biodata, options for relief of labour pain, request for analgesia, method of analgesia, VAS score and cervical score at time...

To evaluate the magnitude of subjective cognitive failure in the three days following general anesthesia (GA) for ambulatory surgery. After Research Ethics Board approval, 258 patients undergoing general anesthesia (GA) and 250 patients scheduled for local anesthesia (LA) were recruited from our ambulatory surgical unit. Following the method of Tza...

Labour and delivery result in severe pain for most women. Attention to comfort and analgesia for women in labour is important for physiological reasons and out of compassion. A review of common methods of pain relief of labour was done. Inhalation method as well as intravenous administration of opioids for pain relief in labour is fast giving way t...

To compare patient controlled inhalational induction (PCI) with the most commonly used sevoflurane induction technique, vital capacity inhalational induction (VCI). Following approval of the Research Ethics Board, 124 outpatients undergoing knee arthroscopy were randomly assigned to receive either PCI or VCI sevoflurane followed by laryngeal mask a...

Banked blood is a limited resource in Nigeria. We sought to evaluate factors that may further limit the effective utilisation of donor blood in a tertiary hospital in Benin City. The records of the blood transfusion unit of the hospital were studied to identify the methods of blood procurement and utilisation from January 1, 2000 to December 31, 20...

Estimates have been made of the amounts of nitrogen dioxide (NO2) in the operating room of University of Benin Teaching Hospital (UBTH) where nitrous oxide (N2O) a potential source of NO is used as an anaesthetic agent Measurements were made using palmes diffusion tubes, a device which is capable of taking samples of NO2 gas from the atmosphere thr...

The purpose of this study is to describe negative pressure pulmonary oedema due to undetected tracheal tube obstruction in a paediatric patient. A healthy 6 week-old scheduled for release of tongue-tie under general anaesthesia was noticed to be diagnosed at the preparation of the surgical site. The patient was quickly assessed, and ventilation wit...

Nowadays, microsurgical discectomy is being performed as an outpatient procedure. A retrospective chart review was done to document factors that delayed discharge or led to unanticipated admission. After Institutional Review Board approval, the hospital medical records of 106 patients who underwent microsurgical discectomy on an ambulatory basis we...

The ability of patients to walk without assistance after spinal anesthesia is a determining factor in the time to discharge following ambulatory surgery. The authors compared clinical markers of gross motor recovery with objective data of functional balance after spinal anesthesia. Twenty-two male patients with American Society of Anesthesiology ph...

To compare the insertion characteristics and rate of complications between 25-gauge Quincke and 24-gauge Gertie Marx needles. Prospective, randomized study. University of Benin Teaching Hospital; a university-affiliated tertiary centre. Parturients (ASA 1 and 2) scheduled for elective caesarean section. They were randomly assigned to receive spinal...

Sleep disordered breathing is increasingly being recognized in the surgical population. This morbidity modifies the anesthetic care of affected patients. It is therefore imperative for the anesthesiologist to demonstrate a firm understanding of the patients at risk and the pathogenesis of this disorder. This will enable the anesthesiologist to prov...

To illustrate the anesthetic management of a term parturient with a large brain tumour scheduled for Cesarean section. A 26-yr-old woman presented at 33 weeks gestation with a generalized grand mal seizure. Magnetic resonance imaging demonstrated a 5-cm multi-lobulated extra axial mass compatible with an epidermoid cyst, arising from the left tempo...

To determine the anaesthesia-related complications after caesarean section in a tertiary hospital, the hospital records of parturients admitted to the Intensive Care Unit (ICU) after caesarean section were studied. In a ten-year period, 2,686 women were delivered by caesarean section at the University of Benin Teaching Hospital, Benin City. Two tho...

Ambulatory surgical care is becoming a common feature in Nigeria. Reports on the role of anaesthesia on outcome of surgery in ambulatory setting are rather scanty. In a 24-month period all patients who had gynaecological operations on ambulatory setting were identified and their hospital records reviewed. Sociodemographic characteristics, intraoper...