Publications by authors named "Nihal Al-Riyami"

Objectives: To determine the prevalence of hypothermia among preterm infants born before 32 weeks of gestation and whether their temperature at admission is associated with neonatal and maternal risk factors and gestational age. Furthermore, the study evaluates the association between admission temperature, neonatal morbidity, and in-hospital mortality.

Methods: This study involved an eight-year retrospective analysis of preterm neonates born < 32 weeks of gestation and admitted to the neonatal intensive care unit at a tertiary hospital in Oman, from 2010 to 2017.

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Article Synopsis
  • The study investigates relationships between placental histopathological abnormalities and adverse obstetric outcomes, focusing on conditions like poor blood flow and inflammation.
  • Conducted from January 2017 to January 2020, the study analyzed 191 women who experienced adverse outcomes such as preterm labor (25.1%) and fetal growth restriction (19.4%).
  • Findings revealed that 74% of women had abnormal placental results, with specific lesions correlating to conditions like preterm labor and preeclampsia, highlighting the necessity of histopathological exams for better management in future pregnancies.
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Dermoid cysts are common benign ovarian tumours arising from totipotent germ cells. We report a rare case of chemical peritonitis and prolonged fever following laparoscopic salpingo-oophorectomy for torsion of a large ovarian dermoid and discuss the management of this patient with prolonged hospital stay, antibiotics and anti-inflammatory use, repeated drainage of the collection as well as re-laparotomy. The occurrence of this rare condition can be extremely distressing for the patient and treating surgeon alike, as the recommendations for management are limited.

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This review aimed to compare the potential analgesic effect of forced coughing (FC) with that of local anaesthetics (LA) or placebo during cervical biopsy. A total of 5 electronic databases-Scopus, PubMed, Web of Science, Cochrane Library and Google Scholar-were systematically searched from inception till March 2021. Data were extracted from 6 randomised controlled trials and analysed.

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Objectives: To evaluate the effect of COVID-19 severity on maternal, perinatal, and neonatal outcomes in pregnant women infected with SARS-CoV-2. We also aimed to assess the effect of medical comorbidities on the severity of COVID-19.

Methods: A retrospective cohort study was conducted on women who became infected with SARS-CoV-2 during pregnancy and delivered at Sultan Qaboos University Hospital, Oman, from 1 March 2020 to 31 December 2021.

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Background: Peripartum cardiomyopathy (PPCM) is an idiopathic life-threatening condition occurring towards the end of pregnancy or in the first few months following delivery that might affect the maternal and neonatal outcomes.

Objectives: To assess the incidence and to evaluate the antenatal risk factors and the maternal and neonatal outcomes in Omani women diagnosed with PPCM.

Methods: A retrospective cohort study was conducted at two tertiary institutions in Oman between the 1 of January 2010 to the 31 of December 2018.

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Objectives: This study aimed to assess the proportion of women who underwent postpartum evacuation and were histopathologically confirmed to have retained products of conception (RPOC), compare the reliability of histopathology and ultrasound (US) in determining the presence of RPOC, and assess the maternal complications associated with postpartum evacuation.

Methods: A retrospective cross-sectional study was conducted on all women who delivered and had postpartum evacuation at a tertiary teaching hospital in Oman over 11 years from May 2009 to May 2020. The participants were divided into two groups based on their histopathology results.

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A 29-year-old woman (gravida 3, para 2) presented at 28 weeks+2 days of gestation with a two-months history of dyspnea associated with orthopnea and occasional palpitations. On transthoracic echocardiography, she was diagnosed with a 3.2 × 2.

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As of August 11, 2021, approximately 206 million people worldwide had been infected with SARS-CoV-2. However, limited data are available regarding the effects of COVID-19 infection on pregnancy and maternal and perinatal outcomes. This review aimed to resolve this gap in literature.

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Studies on the acceptance of prenatal diagnosis and termination of pregnancy for single gene disorders within Islamic societies in the Middle East are limited. A few have examined the attitudes toward pregnancy termination for fetal indications, but a dearth of published data exists on actual behavior and uptake. This study reports on all prenatal diagnosis requests for single gene disorders, from the Sultanate of Oman, over 9 years.

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Objectives: This study aimed to generate baseline evidence regarding the effectiveness of atosiban in delaying delivery by ≥48 hours among pregnant women presenting with threatened preterm labour (TPL). The secondary objective was to assess the relationship between atosiban success and various perinatal factors and neonatal outcomes.

Methods: This retrospective study was conducted between June 2008 and May 2018 at the Sultan Qaboos University Hospital, Muscat, Oman.

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Objectives: This study was conducted to assess pregnancy outcomes in women with systemic lupus erythematosus (SLE) in Oman.

Methods: A retrospective cohort study of 149 pregnancies in 98 women with SLE was conducted over 10 years to evaluate the impact of clinical and laboratory parameters in predicting adverse pregnancy outcomes.

Results: Mean maternal age was 30.

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Objectives: Our study sought to assess the maternal and neonatal outcomes of operative vaginal deliveries (OVDs) at Sultan Qaboos University Hospital (SQUH). We assessed the proportion of OVDs along with the proportion of maternal and neonatal outcomes of kiwi OmniCup vacuum, metal cup vacuum, and forceps deliveries.

Methods: We conducted a retrospective cohort study in the Obstetrics and Gynecology Department at SQUH from June 2015 to March 2018.

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Introduction And Importance: Histiocytic sarcoma (HS) is a rare, aggressive malignant neoplasm of hematopoietic cell origin. Primary HS of the proximal humerus, without involvement of lymph nodes or bone marrow, or systemic features, is very rare.

Case Presentation: We report a rare case of primary bony HS of the proximal humerus without bone marrow involvement in a healthy 33-year-old pregnant woman.

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The COVID-19 pandemic continues to move at record speed. Health systems and hospitals worldwide face unprecedented challenges to effectively prepare and respond to this extraordinary health crisis and anticipated surge. Hospitals should confront these unparalleled challenges with a comprehensive, multidisciplinary, coordinated, and organized strategy.

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Objectives: We sought to assess the relationship between respiratory distress syndrome (RDS) in neonates delivered by elective cesarean section at term gestation with and without corticosteroids cover. We also aimed to determine other neonatal complications such as sepsis, hypoglycemia, and hyperbilirubinemia.

Methods: We conducted a retrospective descriptive study from January 2010 to December 2015 on all Omani women who delivered by elective cesarean section at Sultan Qaboos University Hospital between 37+0 and 38+6 weeks gestation.

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Objectives: We sought to assess the prevalence of gestational trophoblastic diseases (GTD) among pregnant women at Sultan Qaboos University Hospital (SQUH) and compare our results with the international studies. We also sought to determine the risk factors, histological features, sonographic findings, and outcomes in women with GTD.

Methods: We conducted a retrospective cohort study of all women diagnosed with GTD and followed at SQUH between November 2007 and October 2015.

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Objective: The purpose of this study was to determine the frequency of non-immune hydrops fetalis (NIHF) among all pregnancies referred for prenatal care at Sultan Qaboos University Hospital (SQUH) during the study period and to evaluate the underlying etiologies of NIH.

Study Design: All pregnancies referred to SQUH between February 2014 and December 2015 were identified, and all pregnancies meeting the diagnosis of NIHF were included in this study. All cases of NIHF referred to our center during this period underwent standard systematic diagnostic work-up that included biochemical and molecular studies in addition to the standard investigations for hydrops fetalis.

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Objectives: This study aimed to evaluate rates of success and perinatal complications of labour induction using an intracervical Foley catheter among women with a previous Caesarean delivery at a tertiary centre in Oman.

Methods: This retrospective cohort study included 68 pregnant women with a history of a previous Caesarean section who were admitted for induction via Foley catheter between January 2011 and December 2013 to the Sultan Qaboos University Hospital, Muscat, Oman. Patient data were collected from electronic and delivery ward records.

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Objectives: The detection of maternal alloimmunization against red cell antigens is vital in the management of hemolytic disease of the fetus and newborn. We sought to measure the presence of allosensitization to Rhesus D (RhD) antibodies in antenatal women attending a tertiary care hospital and assess the fetal outcome in sensitized women. 


Methods: We conducted a retrospective review of pregnant Omani women who registered at the Sultan Qaboos University Hospital between June 2011 and June 2013.

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A hydatidiform mole with a coexisting live fetus is a rare occurrence and the optimal management for this condition is not yet known. We report the case of a 32-year-old woman (gravida 3, para 2) who presented to the Sultan Qaboos University Hospital, Muscat, Oman, in March 2012 at 13 gestational weeks with abdominal pain and vaginal bleeding. An ultrasound examination revealed a hydatidiform mole pregnancy coexisting with a live fetus.

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Objectives: Pregnancy in women with homozygous beta thalassaemia (HBT) carries a high risk to both the mother and fetus. The aim of this study was to investigate pregnancy outcomes among this group at a single tertiary centre.

Methods: This retrospective descriptive study was conducted between January 2006 and December 2012 on all women with HBT who received prenatal care and subsequently delivered at Sultan Qaboos University Hospital, Muscat, Oman.

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Objective: To investigate fetal outcomes in pregnant women with sickle cell disease (SCD), and to analyze the impact of baseline variables on those outcomes.

Methods: This is a retrospective cohort study carried out over 5 years (June 2006 to August 2011) investigating fetal outcomes at Sultan Qaboos University Hospital, Muscat, Oman. Sixty-eight consecutive pregnant women with SCD (62 women with hemoglobin sickle cell anemia [SS] genotype) were included and analyzed in the study.

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