T-cell-mediated drug hypersensitivity: immune mechanisms and their clinical relevance

T-cell-mediated drug hypersensitivity represents a significant proportion of immune mediated drug hypersensitivity reactions. In the recent years, there has been an increase in understanding the immune mechanisms behind T-cell-mediated drug hypersensitivity. According to hapten mechanism, drug specific T-cell response is stimulated by drug-protein conjugate presented on major histocompatibility complex (MHC) as it is presented as a new antigenic determinant. On the other hand, p-i concept suggests that a drug can stimulate T cells via noncovalent direct interaction with T-cell receptor and/or peptide-MHC. The drug binding site is quite variable and this leads to several different mechanisms within p-i concept. Altered peptide repertoire can be regarded as an 'atypical' subset of p-i concept since the mode of the drug binding and the binding site are essentially identical to p-i concept. However, the intracellular binding of abacavir to HLA-B*57:01 additionally results in alteration in peptide repertoire. Furthermore the T-cell response to altered peptide repertoire model is only shown for abacavir and HLA-B*57:01 and therefore it may not be generalised to other drug hypersensitivity. Danger hypothesis has been postulated to play an important role in drug hypersensitivity by providing signal 2 but its experimental data is lacking at this point in time. Furthermore, the recently described allo-immune response suggests that danger signal may be unnecessary. Finally, in view of these new understanding, the classification and the definition of type B adverse drug reaction should be revised.

The Implementation of Guidelines in a South African Population with Type 2 Diabetes

Objective: The aim of this study was to identify the treatment gaps that pertain to risk factors in South African patients with type 2 diabetes mellitus; using national treatment guidelines.Design: Cross-sectional study.Setting and subjects: The study consisted of 666 patients with type 2 diabetes mellitus; attending a diabetes clinic at the Charlotte Maxeke Johannesburg Academic Hospital.Outcome measures: Using a public sector database; retrospective data were obtained on the treatment of type 2 diabetes mellitus participants. Patients were randomly selected on the basis of established type 2 diabetes mellitus diagnosis; and if they were receiving oral hypoglycaemic and/or insulin therapy. Age; gender; race; blood pressure; haemoglobin A1c (HbA1c) and fasting lipids were captured and measured. The history of patients' previous coronary artery disease; strokes; nephropathy; neuropathy and retinopathy was recorded.Results: The mean age of the patients was 63 years [standard deviation (SD) 11.9]; 55of whom were females. The HbA1c was 8.8 (SD 2.5). 26.2 of patients attained HbA1c levels of 7. Of the total patients; 45.8 met a 130/80 mmHg blood pressure target; and 53.8 a low-density lipoprotein (LDL) cholesterol of 2.5 mmol/l. Only 7.5 obtained the combined target for HbA1c ; blood pressure and LDL cholesterol.Conclusion: Traditionally; type 2 diabetes mellitus treatment has centred on correcting blood glucose levels. Yet; as many as 80

Laparoscopic ovarian ligament plication in pregnancy / Plicatura laparoscópica del ligamento ovárico en el embarazo

This 32-year old patient presented at seven weeks gestation with severe left-sided lower abdominal pain. This was against the background of a previous history of left salpingectomy from a ruptured ectopic gestation seven years previously. Transvaginal sonographic evaluation revealed a viable seven week intrauterine embryo, a 2 cm left corpus luteum cyst and Doppler studies revealed reduced internal flow. This led the way for a conservative approach via laparoscopy of untwisting the pedicle to restore blood flow. In this case, the ovarian ligament was shorted using 1/0 vicryl and the pregnancy went to term.

Esta paciente de 32 años se presentó en la séptima semana de gestación con un severo dolor abdominal en el lado inferior izquierdo. Esto ocuría teniendo la paciente por antecedente una historia previa de salpingectomía izquierda a partir de la ruptura de un embarazo ectópico siete años antes. La evaluación sonográfica transvaginal reveló un embrión intrauterino viable de siete semanas, un quiste del 2 cm en el cuerpo lúteo izquierdo, y los estudios de Doppler revelaron un flujo interno reducido. Esto abrió el camino para un abordaje conservador vía laparoscopia encaminada a deshacer la torsión del pedículo y restablecer así el flujo sanguíneo. En este caso, el ligamento ovárico fue acortado usando vicryl 1/0, y el embarazo continuó a término.

Total laparoscopic hysterectomy versus vaginal hysterectomy at the University Hospital of the West Indies: a 5-year retrospective study

OBJECTIVE: To compare the outcomes of total laparoscopic hysterectomy (TLH), a relatively new procedure, with vaginal hysterectomy (VH), a wellestablished procedure, in a university teaching hospital. SUBJECTS AND METHODS: A retrospective chart review of all patients who underwent TLH at the University Hospital of the West Indies between January 2007 and December 2011 was conducted. Chart review was also conducted of a group of patients who underwent VH during this time period. The groups were compared with respect to demographic data and intraoperative and postoperative outcomes. Statistical analysis was undertaken using the SPSS software, version 12.0 (SPSS, Chicago, IL). The Student unpaired ttest was used to analyse continuous variables, and the Chi-square test and Fisher exact test for categorical variables, when appropriate. A p-value of < 0.05 was considered statistically significant. RESULTS: Ten patients underwent TLH, and were compared with 22 women who underwent VH. There was no statistically significant difference between groups in uterine weight, estimated blood loss, postoperative analgesic requirement, or length of hospitalization. Total laparoscopic hysterectomy took significantly longer to perform (209.9 vs 145.6 minutes, p = 0.004). One patient in the TLH group had to be brought back to the operating theatre after three months because of bowel prolapse secondary to vault dehiscence. With the exception of one case of bladder injury in the VH group, there were no significant differences between the groups in terms of intraoperative and postoperative complications. CONCLUSION: Total laparoscopic hysterectomy, notwithstanding its learning curve, is as safe as VH. However, TLH was associated with a significantly longer operative time.

Anticardiolipin antibodies and lupus anticoagulants among women undergoing in vitro fertilization in Jamaica / Anticuerpos anticardiolipinas y anticoagulantes lúpicos entre mujeres a las que se les realiza FIV en Jamaica

OBJECTIVE: The aims of this study were to evaluate the effect of anticardiolipin antibody (aCL) and lupus anticoagulant (LA) on the outcome of the in vitro ferlitization (IVF) cycles and to determine the prevalence of these antibodies in infertile women seeking IVF in Jamaica. METHODS: A retrospective cohort study was performed to determine if screening patients for aCL and LA had any significant impact on the outcome of the IVF process. Each patient's hospital record, between March 2000 and March 2010, was collected and the relevant data extracted. RESULTS: The prevalence of aCL in this cohort of Jamaican women was moderate/high positive 3.88%, low positive 0.68% and those with negative aCL results 95.4%. The prevalence of women who were LA positive was 4.1% and 0.9% of the women were positive for both LA and aCL. Of the patients who were LA and/or aCL positive, eight out of 30 patients (26.7%) had a positive pregnancy test in comparison to 61 out of 181 patients (33.7%) who were LA and/or aCL negative (p = 0.5787). CONCLUSION: The prevalence of positive aCL and/or lA in infertile women seeking IVF in Jamaica is 7.76%. The presence of these antibodies did not affect the pregnancy rate of these women nor did it demonstrate an increased risk for IVF cycle cancellation or ovarian hyperstimulation syndrome. Screening women undergoing IVF for these antibodies is not justified.

OBJETIVO: Los objetivos de este estudio fueron evaluar el efecto del anticuerpo anticardiolipina (aCL) y el anticoagulante lúpico (LA) sobre el resultado de los ciclos de la fertilización en vitro (FIV), así como determinar la prevalencia de estos anticuerpos en mujeres estériles que buscan tratamiento de FIV en Jamaica. MÉTODOS: Se realizó un estudio de cohorte para determinar si el tamizaje de pacientes para detectar el anticuerpo anticardiolipina y el anticoagulante lúpico tenía un impacto significativo en el resultado del proceso de FIV. Se obtuvieron las historias clínicas hospitalarias de cada una de las pacientes, entre marzo de 2000 y marzo de 2010, y se extrajeron los datos pertinentes. RESULTADOS: La prevalencia de aCL en esta cohorte de mujeres jamaicanas fue 3.88% moderada/alta positiva, 0.68% positiva baja, y aquellas con resultados negativos de aCL, 95.4%. La prevalencia de mujeres con resultados de anticoagulante lúpico positivos fue 4.1%, y 0.9% de las mujeres resultaron positivas con respecto tanto al LA como al aCL. De las pacientes que fueron positivas al LA y/o al aCL, ocho de cada 30 pacientes (26.7%) tuvieron una prueba de embarazo positiva, en comparación con 61 de cada 181 pacientes (33.7%) negativas al LA y/o al aCL (p = 0.5787). CONCLUSIÓN: La prevalencia de resultados positivos en relación con anticuerpos anticardiolipinas y/o anticoagulantes lúpicos en mujeres estériles que buscan FIV en Jamaica es 7.76%. La presencia de estos anticuerpos no afectó la tasa de embarazo de estas mujeres, ni mostró un aumento de riesgo de la cancelación del ciclo FIV, o riesgo de síndrome de hiperestimulación ovárica. El tamizaje en busca de estos anticuerpos en mujeres que buscan tratamiento de FIV, no está justificado.

Operative hysteroscopy in a jamaican cohort / Histeroscopia operatoria en una cohorte jamaicana

OBJECTIVE: The objective of this study is to determine the indications, success, and complications of operative hysteroscopy performed at The University of the West Indies (UWI). METHODS: A five-year retrospective cohort study was done of women undergoing operative hysteroscopy at the Hugh Wynter Fertility Management Unit (HWFMU) of the University of the West Indies from January 1, 2001 to December 31, 2005. The demographics of the patients, indications, complications of the procedure and postoperative follow-up were assessed. Patient's post-procedural quality of life was assessed by a questionnaire. RESULTS: During this period, 92 operative hysteroscopies were performed on 87 patients, with repeat procedures being performed in three patients. The mean age of patients undergoing operative hysteros-copy was 36.65 years with a range of 23 to 50 years. The main indications for operative hysteroscopy at the HWFMU were submucosal fibroids (50%), intrauterine synechiae (26%) and removal of an intrauterine contraceptive device (11%). There were four procedure-related complications, all of which occurred during myomectomy and required hospitalization. CONCLUSION: Operative hysteroscopy is a safe and highly effective therapy for carefully selected women. As a consequence of technological advancements, an increasing number of gynaecological conditions, traditionally treated by laparotomy, can now be treated safely and effectively using outpatient operative hysteroscopy.

OBJETIVO: El objetivo de este estudio es determinar las indicaciones, éxito, y complicaciones de las histeroscopías operatorias realizadas en la Universidad de West Indies (UWI). MÉTODOS: Se realizó un estudio de cohorte retrospectivo de cinco años con mujeres sometidas a Histeroscopia operatoria en la Unidad de Fertilidad "Hugo Wynter", en la Universidad de West Indies (HWFMU), del 1ero de enero de 2001 al 31 de diciembre de 2005. Se evaluaron los datos demográficos de los pacientes, así como las indicaciones, las complicaciones del procedimiento y el seguimiento post-operatorio. Se aplicó un cuestionario para evaluar la calidad de vida del paciente luego del procedimiento. RESULTADOS: Durante este período se realizaron 92 histeroscopías operatorias a 87 pacientes, repitiéndose los procedimientos en tres pacientes. La edad promedio de los pacientes sometidos a Histeroscopia operatoria fue 36.65 años, con una rango de 23 a 50 años. Las indicaciones principales para la histeroscopía operatoria en la Unidad HWFMU fueron los miomas submucosos (50%), las sinéquias intrauterinas (26%) y la extracción del dispositivo anticonceptivo intrauterino (11%). Hubo cuatro complicaciones relacionadas con los procedimientos, todas las cuales tuvieron lugar durante la miomectomía y requirieron hospitalización. CONCLUSIÓN: La histeroscopía operatoria es una terapia segura y altamente efectiva para mujeres cuidadosamente seleccionadas. Como consecuencia de los avances tecnológicos, un número creciente de condiciones ginecológicas, tradicionalmente tratadas mediante laparotomía, pueden ahora ser tratadas con seguridad y efectividad mediante histeroscopía operatoria ambulatoria.

Laparoscopic cervicoisthmic cerclage for the treatment of cervical incompetence: case reports / Cerclaje cérvico-ístmico laparoscópico en el tratamiento de la incompetencia cervical: reporte de casos

Cervical insufficiency/incompetence occurs in 0.5-1% of all pregnancies, often resulting in significant pregnancy lost. Three women with a history of second trimester miscarriages after failed transvaginal cervical cerclages were reviewed. A laparoscopic cervicoisthmic cerclage (LCC) was placed before pregnancy without any intra-operative or postoperative complications. Two patients have since delivered live babies at term by Caesarean section. This small case series supports the conclusion that LCC is a safe and cost-effective procedure in properly selected patients. Laparoscopic cervicoisthmic cerclage costs less, is less invasive, has fewer complications and should replace the traditional laparotomy technique.

La insuficiencia/incompetencia cervical ocurre en 0.5-1% de todos los embarazos, trayendo a menudo como consecuencia una pérdida significativa de embarazos. Se revisaron los casos de tres mujeres con una historia de abortos en el segundo trimestre después de cerclajes cervicales transvaginales fallidos. Un cerclaje cérvico-ístmico laparoscópico (CCL) se realizó antes del embarazo sin ninguna complicación intraoperatoria o postoperatoria. Desde entonces, dos pacientes han parido bebés vivos a término por cesárea. Esta pequeña serie de casos sustenta la conclusión de que el CCL es un procedimiento seguro y costo-efectivo en pacientes propiamente seleccionados. El cerclaje cérvico-ístmico laparoscópico cuesta menos, es menos invasivo, tiene menos complicaciones, y debe reemplazar la técnica de laparotomía tradicional.

Successful treatment of severe male factor infertility in Jamaica with intracytoplasmic sperm injection / Tratamiento exitoso de la infertilidad severa por factor masculino en Jamaica mediante inyección de esperma intracitoplasmático

OBJECTIVES: To examine the impact of intracytoplasmic sperm injection (ICSI) on the treatment of subfertile couples in Jamaica. METHOD: A review of the outcome of treatment cycles for infertile couples that underwent in-vitro fertilisation (IVF) and ICSI from 2003-05 at the Hugh Wynter Fertility Management Unit (HWFMU) of the University of the West Indies. Fertilisation and pregnancy rates for the cycles as well as the factors determining the success of the procedure were reviewed. SPSS 11.1 was used to do statistical calculations. RESULTS: Ninety-six ICSI cycles were done from January 1, 2003 to December 31, 2005. For couples with previous poor or no fertilisation in a standard IVF group (n = 12), the fertilisation rate was 72%; for those with substandard semen (n = 73), the fertilisation rate was 77.5%, for those with semen retrieved by surgical sperm method (n = 11), the fertilisation rate was 59%. The resulting live births were 0%, 12.5% and 27.3% respectively. There was a statistically significant impact ofage on pregnancy rates as the mean age ofthe females in the previously poor or no fertilisation in a standard IVF group (39.08 ± 5.14) was greater than those of the substandard semen group (35.93 ± 4.22) ]p = 0.023[ as well as the group with surgical sperm retrieval (32.82 ± 6.65) ]p = 0.019[. CONCLUSION: With ICSI, the fertilisation and pregnancy rates in Jamaica are comparable to international rates regardless of the cause of infertility. However, the age of the female partner does have a significant impact on the pregnancy rate following ICSI.

OBJETIVO: Examinar el impacto de la inyección de esperma intracitoplasmático (IEIC) en el tratamiento de las parejas subfértiles en Jamaica. MÉTODO: Se realizó un examen del resultado de los ciclos de tratamiento para las parejas infértiles que recurrieron a la fertilización in vitro (FIV) y a la IEIC de 2003 a 2005 en la Unidad de Tratamiento de la Fertilidad Hugh Wynter del Hospital Universitario de West Indies (HWFMU). Se examinaron las tasas de fertilización y embarazos en todos los ciclos así como los factores que determinan el éxito del procedimiento. Se usó el programa SPSS para realizar los cálculos estadísticos. RESULTADOS: Se realizaron noventa y seis ciclos de IEIC del 1ero de enero de 2003, al 31 de diciembre de 2005. Para parejas con ninguna o pobre fertilización en un grupo estándar de FIV (n - 12), la tasa de fertilización fue 72%; para aquellos con semen subestándar (n = 73), la tasa de fertilización fue 77.5%; para aquellos con semen recuperado mediante recuperación quirúrgica de esperma (n = 11), la tasa de fertilización fue 59%. Los nacimientos vivos resultantes fueron 0%, 12.5%, y 27.3% respectivamente. Hubo un impacto estadísticamente significativo de la edad sobre las tasas de comembarazo, ya que la edad promedio de las hembras en la fertilización previamente pobre o sin fertilización en un grupo FIV estándar (39.08 ± 5.14) fue mayor para las del grupo de semen subestándar (35.93 ± 4.22) ]p = 0.023[ así como las del grupo con recuperación quirúrgica del esperma (32.82 ± 6.65) ]p = 0.019[. CONCLUSIÓN: Con el uso de IEIC, las tasas de fertilización y embarazo en Jamaica, son comparables a las tasas internacionales, independientemente de cual sea la causa de la infertilidad. Sin embargo, la edad de la pareja hembra no tiene un impacto significativo sobre la tasa de embarazo una vez aplicada la IEIC.

In-vitro fertilization: donor egg sharing for premature ovarian failure / Fertilización in vitro: una donante comparte un óvulo en un caso de fallo ovárico prematuro

Premature ovarian failure may be a consequence of gonadotoxic cytotoxic chemotherapy or radiation therapy for malignant or systemic disease often resulting in major quality of life concerns. This is the first reported case in the English-speaking Caribbean using in-vitro fertilization (IVF) donor egg sharing in a patient who experienced premature ovarian failure following chemotherapy and radiation for Hodgkin's disease. The donor's indication was tubal factor infertility. Both patients delivered healthy infants.

El fallo ovárico prematuro puede ser consecuencia de la quimioterapia citotóxica gonadotóxica o la terapia de radiación para alguna enfermedad maligna o sistémica, que a menudo trae consigo serios problemas para la calidad de vida. Se reporta el primer caso en el Caribe anglófono, en el que un óvulo de fertilización in vitro (FIV) de una donante, es compartido con una paciente que experimentó fallo ovárico prematuro tras ser sometida a quimioterapia y radiación a causa de la enfermedad de Hodgkin. El diagnóstico de la donante fue infertilidad por factor tubario. Ambos pacientes dieron a luz bebés saludables.

Uterus bicornis bicollis, imperforate hemivagina and ipsilateral renal agenesis case report and literature review / Útero bicorne bicollis, hemivagina imperforada, y agenesia renal ipsilateral reporte de caso y revisión de la literatura

We present a case of a patient with Uterus bicornis bicollis, imperforate hemivagina and ipsilateral renal agenesis. This group of congenital malformations is often asymptomatic until puberty, when it presents as cyclic dysmenorrhoea, leucorrhoea or a pelvic mass. Magnetic resonance imaging is becoming the preferred modality for delineation of uterine malformations. When congenital abnormalities ofthe reproductive tract are encountered, a search should also be made for renal anomalies. Patients with Uterus bicornis bicollis and unilateral imperforate vagina are often seen with pain severe enough to mimic an acute abdomen. It is important to keep this unusual congenital malformation in mind in the differential diagnosis of vaginal discharge, pelvic mass and/or abdominopelvic pain in young women so as to avoid inappropriate surgical procedures.

Presentamos el caso de una paciente con útero bicorne bicollis, hemivagina imperforada, y agenesia renal ipsilateral. Este grupo de malformaciones congénitas es a menudo asintomático hasta la pubertad, cuando se presenta en forma de dismenorrea cíclica, leucorrea, o una masa pélvica. La imagen por resonancia magnética se está convirtiendo en la modalidad preferida para delinear las malformaciones uterinas. Cuando se encuentran anormalidades del aparato reproductor, debe realizarse también una investigación en busca de anomalías renales. A los pacientes con útero bicorne bicollis y vagina imperforada se les ve a menudo con dolores suficientemente severos como para parecer un abdomen agudo. Es importante tener en mente esta inusual malformación congénita en el diagnóstico diferencial del flujo vaginal, la masa pélvica y/o el dolor pélvico-abdominal en las mujeres jóvenes, a fin de evitar procedimientos quirúrgicos inadecuados.

Effect of the oral contraceptive pill on patients undergoing controlled ovarian hyperstimulation

This is a retrospective analysis of 89 patients who were undergoing controlled ovarian hyperstimulation for in vitro fertilization and embryo transfer in the Fertility Management Unit of the Department of Obstetrics, Gynaecology and Child Health, The University of the West Indies. Twenty-eight patients (Group A), who did not receive oral contraceptive pills prior to controlled ovarian hyperstimulation (COH) were compared with 61 patients in Group B treated with oral contraceptive pills for two months prior to undergoing COH assisted reproduction using the long protocol. The number of follicles, oocytes, estimated oestradiol levels on the day of administration of human chorionic gonadotrophin (hCG), pregnancy rates, miscarriage rates and the incidence of patients who developed ovarian hyperstimulation syndrome (OHSS) were the main outcome measures. The mean age and haematocrit were the same in each group. The number of follicles retrieved tended to be higher in Group A than in Group B (median 8 versus 6, p = 0.06) with significantly more oocytes being retrieved in Group A than Group B (p < 0.05). There were no statistically significant differences between the two groups in oestradiol levels, the proportion of patients with polycystic ovarian disease, the proportion of women who developed ovarian hyper-stimulation syndrome or pregnancy outcomes. There was no difference between the groups in measures of clinical severity of OHSS. In a logistic regression model the significant predictors of OHSS were haematocrit and oestradiol levels. There appeared to be no significant clinical benefit in administering oral contraceptive pills for two months to patients prior to COH

Who is at high risk? A comparison of the seroprevalence of human immunodeficiency virus in pregnant women and a high risk group

To compare the seroprevalence of HIV in Jamaican pregnant women with that in substance abusers, two groups of antenatal patients were studied, one (A) attending a public hospital clinic and the other (B) attending private clinics. The HIV seroprevalence in the antenatal patients was compared with that in the substance abusers, group C, in 1996 and five years later in 2001. HIV antibody was determined by enzyme immunoassay. The HIV seroprevalence in group A more than doubled (1.6-3.8) in five-years, 1996-2001. There were no seropositives in group B. In group C, the seroprevalence rose from 2.08 in 1996 to 5.76 in 2001. There was indication that group A might no longer be considered [quot ]low risk[quot ], as there was no significant difference from group C in HIV seroprevalence in 1996 and 2001. The trend seen in this study is worthy of further investigation

Endometriosis co-existing with bilateral dermoid cysts of the ovaries treated by laparoscopy

Endometriosis co-existing with bilateral dermoid cysts of the ovaries is a rare occurrence although both benign conditions are said to be common in women in the reproductive age group. We present a case of a young woman with primary infertility associated with incapacitating dysmenorrhoea. Sonographic evaluation revealed bilateral ovarian cysts. Video-assisted laparoscopy was performed which revealed bilateral dermoid cysts and endometriotic deposits in the pelvis. The ovarian cysts were enucleated and the endometriotic deposits were endo-coagulated. The patient was treated with GnRH agonist for three months. There have been only two reports of benign and malignant teratomas co-existing with endometriomas

Successful pregnancy after hysteroscopic metroplasty

Congenital anomalies of the uterus have been estimated to affect 0.06-10 of women. Uterine septae account for approximately 80 to 90 of these anomalies and is also associated with the poorest reproductive outcome. Pregnancy loss in patients with a septate uterus has been reported to be as high as 90 after other causes for miscarriages have been excluded. We present here the first experience in Jamaica, of a successful pregnancy outcome after hysteroscopic metroplasty in a woman with a septate uterus and three previous miscarriages

Cervical pregnancy. Case report and literature review

Cervical pregnancy is an uncommon life threatening form of ectopic pregnancy that is associated with the unexpected occurrence of uncontrollable haemorrhage from the cervix. To avoid hysterectomy and to maintain fertility, several conservative methods of termination have been used. We present herein, one such case which relates to a young woman who had successful conservative management of a cervical pregnancy using vasopressin infiltration of the cervix, a McDonald cerclage and cervical curettage followed by balloon tamponade. Subsequently, she became pregnant again with a normal intra-uterine pregnancy and had a successful vaginal delivery

In vitro fertilization. The Jamaican experience

In June 2000, twenty-eight infertile couples were treated by in vitro fertilization and embryo transfer at our initial assisted reproduction programme carried out in conjunction with Midland Fertility Services, Aldridge, Birmingham, England. A pre-requisite for treatment was that on day 3 of the menstrual cycle the levels of follicle stimulating hormone (FSH) and oestradiol (E2) should be < 10 i mu/l and < 100 pg/ml respectively in the female partner. The ages of the women ranged from 26 to 42 years with a mean age of 35.5 years. Down regulation was carried out by using buserelin acetate 0.5 microgram subcutaneously from day 21 of the cycle for 21 days. This process was completed when the ovaries and pituitary gland were quiescent and the endometrial thickness < 4 mm in diameter. On completion of down regulation the gonadotrophin hormone, pergonal (dosage of 150-450 units) was used for ovarian hyperstimulation. A total of 294 oocytes (mean of 10.5, range 2-45) were retrieved of which 138 were fertilized (mean of 4.9, range of 0-28). Twenty-four patients each received a mean of two embryos. Five patients (20.8) had positive pregnancy tests. Three patients (0.1) developed ovarian hyperstimulation syndrome (OHSS), one had the severe, and two, the mild form of the syndrome. All three cases were treated successfully. The success at the initial IVF controlled ovarian hyperstimulation augers well for the future of infertile couples seeking treatment at the Fertility Management Unit, The University of the West Indies, Jamaica.

Enzyme linked immunosorbent assay for dexamethasone in equine urine

A simple and sensitive competitive Enzyme Linked Immunosorbent Assay [ELISA] with a colorimetric end point has been developed for the measurement of dexamethasone in equine sample. Use of pre-mixed reagent of untreated sheep antiserum and donkey antisheep alkaline phoshatase-labelled second antibody enables analysis of 40 duplicate urine sample within 75 minutes. The assay has good precision [Sr less than 5% for within and between assay runs] and is sensitive [LOD equivalent to 173 ng ml-l of diluted equine sample]. The assay has been used to detect the drug in urine over 20 hours in urine from a race horse following intramuscular [i.m.] injection of 20 mg of dexamethasone sodium phosphate

Fulminant hepatic failure in children

Fulminant hepatic failure is a clinical syndrome resulting from massive necrosis or severe functional impairment of hepatocytes. This paper reviews the etiology, pathogenesis and management of this condition. Orthotopic liver transplantation may achieve very high survival rates [50-70%]

Successful pregnancy after conservative surgery for ovarian papillary serous cystadenocarcinoma of low malignant potential

Conserative surgery was performed on a 28-year-old patient with an ovarian serous cystadenocarcinoma of low malignant potential who became pregnant one year later. The good prognosis of these tumours makes conservative surgical management the treatment of choice when preservation of child-bearing potential is deemed appropriate.