The rise in caesarean birth rate in Sagamu, Nigeria: reflection of changes in obstetric practice.

A retrospective and comparative study of women delivered by caesarean section over two different 3-year periods was conducted at Olabisi Onabanjo University Teaching Hospital, Sagamu, Nigeria. The caesarean section rate (CSR) increased from 10.3% in 1989-1991 to 23.1% in 2000-2003. The most frequent indication in both periods was different: prolonged/obstructed labour (20.0%) in 1989-1991 and antepartum haemorrhage (14.9%) in 2000-2003. Malpresentation, antepartum haemorrhage and pre-eclampsia/eclampsia were responsible for 51.7% of the difference in the CSR recorded between both periods. The CSR rose from 13.3% to 25.0% while the instrumental vaginal delivery (IVD) rate decreased significantly by 11.4% among the nulliparous women between the periods. Increase in CSR can be attributed mainly to reduction in IVD rate and alteration in the management of labour complications and induction policy. Strategies to reduce the CSR should cut across all indications and focus on encouraging instrumental vaginal deliveries, especially among nulliparous women.     

Proximaler Humerusnagel bei körpernahen Oberarmbrüchen

Zusammenfassung Frakturen des proximalen Humerus stellen beim älteren Patienten, bedingt durch Osteopenie und Verletzungsschwere, eine Herausforderung für die operative Versorgung dar. Seit wenigen Jahren stehen intramedulläre Implantate zur Verfügung, mit denen auch Mehrfragmentfrakturen mit hoher Primärstabilität versorgt werden können. Bei limitierten Weichteilschäden kann durch frühe Physiotherapie ein gutes funktionelles Ergebnis erreicht werden. Seit 2003 verwenden wir den T2-PHN (Fa. Stryker) und konnten bisher 15 Patienten nach 1-jähriger Beobachtung auswerten. Bei einem Durchschnittsalter von 64,6 Jahren lag der durchschnittliche Constant-Score nach 1 Jahr bei 68,3 (±17,3) auf der betroffenen Seite, seitenadaptiert wurden 79% erreicht. Der Anteil der 4-Segment-Frakturen lag bei 60%. Bei 4 Patienten beobachteten wir eine partielle Humeruskopfnekrose ohne Therapiekonsequenz. Implantatentfernungen waren in 5 Fällen wegen überstehender Schrauben oder vorstehendem proximalem Nagelende nötig. Mit den modernen Verriegelungsmarknägeln ist eine Gewebe schonende und sehr stabile Versorgung der proximalen Humerusfrakturen möglich.     

Chronic GVHD in minor salivary glands and oral mucosa: histopathological and immunohistochemical evaluation of 25 patients

BACKGROUND: Graft-vs.-host disease (GVHD) is the major cause of morbidity and mortality in patients undergoing allogeneic Bone Marrow Transplantation (BMT). The aim of our study was to identify the most relevant histological features for diagnosis of chronic Graft-vs.-Host Disease (cGVHD) in oral mucosa and minor salivary glands of 25 patients, as well as to evaluate the immunophenotype of the inflammatory cells. METHODS: Sixteen patients that were submitted to allogeneic BMT but did not present cGVHD were selected as a control group. The sections were studied on H & E and CD68, CD45, CD4, CD8, CD20 staining. RESULTS: The most frequent histologic findings in oral mucosa at the day of diagnosis of cGVHD were: hydropic degeneration of the basal layer of the epithelium, apoptotic bodies, lymphocytic infiltration, and focal or total cleavage between the epithelial and connective tissue. In the labial salivary glands (LSG), lymphocytic infiltration, acinar loss and fibrosis were the main alterations. Cytotoxic CD8-T cells and macrophages were predominant both in the epithelium and connective tissue, as well as in minor salivary glands. CONCLUSIONS: Histological features were useful in the diagnosis of oral cGVHD. It is suggested that CD8-T cells and macrophages play important role in the pathogenesis of the disease.     

Urachal pathology

Reviewing 5 recent cases, different anatomical and clinical forms of partial or complete urachal persistency are described: patent urachus, urachal cyst, urachal sinus and urachal diverticulum. The risk of late malignant evolution of this embryonic vestige justifies radical surgical removal at time of diagnosis.     

Isolation from the serum of cancer patients and molecular structure determination of a ketone derivative of D3 vitamin

In a previous article we have reported our finding of an unknown vitamin derivative in the serum of cancer patients and in rats transplanted by a malignant tumor. Analysis of this compound extracted from serum of cancer patients, was carried out by I.R., U.V., mass spectrography and nuclear magnetic resonance (N.M.R.) determination. This analysis led us to the conclusion that the compound was a ketone derivative of D3 vitamin: 1-ceto-24-methyl-25-hydroxycholecalciferol, provisionally designated D3C. Enzymatic pathways involved in the biosynthesis of this substance and its possible role in normal and pathological cell division are discussed.