Immune Responses Following BCG Immunization of Infants in Uganda and United Kingdom Are Similar for Purified Protein Derivative but Differ for Secretory Proteins of Mycobacterium tuberculosis.

Introduction: The immunogenicity of BCG vaccination in infants differs between populations. We hypothesized that prenatal exposure to mycobacterial antigens might explain the differences in immune responses to BCG seen in other studies of infants in Africa and the United Kingdom (UK) and we explored this in birth cohorts in Uganda and the UK. Materials and Methods: Blood samples were obtained from BCG-immunized infants of mothers with (n = 110) and without (n = 121) latent Mycobacterium tuberculosis infection (LTBI) in Uganda and BCG-immunized infants of mothers without LTBI (n = 25) in the UK at 10 and 52 weeks after birth. Cytokine and chemokine responses to PPD were measured to assess responses to BCG immunization, and to ESAT6/CFP10 to assess exposure to or infection with M. tuberculosis or non-tuberculous mycobacteria (NTM) in 6-day whole blood culture supernatants by a 17-plex Luminex assay. Median responses were compared between Ugandan infants (together, and separated by maternal LTBI status) and UK infants. Results: The IFN-γ response to BCG vaccination was similar between Ugandan and UK infants at 10 and 52 weeks. At week 52, TNF production was marginally higher in Ugandan infants, but after adjusting for multiple comparisons this difference was not significant. At weeks 10 and 52, stimulation of blood with ESAT6/CFP10 produced significantly higher IFN-γ, TNF, IL-12p40, IL-1α, IL-1ß, IL-1Ra, IP-10, MIP-1α, MIP-1ß, and GM-CSF in Ugandan compared to UK infants. Stimulation of blood with ESAT6/CFP10 produced significantly higher amounts of IL-8 (p = 0.0001), IL-10 (p = 0.0022), and IL-13 (p = 0.0020) in the UK than in Ugandan infants of mothers without LTBI at week 10, but not at week 52. Conclusions: Immune responses to mycobacterial antigens following BCG immunization are similar for PPD, but differ for ESAT6/CFP10, between infants in Uganda and the UK. Neither maternal LTBI nor infant exposure to or infection with mycobacteria impacts the response to BCG. The observed global differences in immune response to BCG immunization are likely to be due to other causes.

Abdomino-pelvic packing revisited: An often forgotten technique for managing intractable venous obstetric haemorrhage.

BACKGROUND: Surgical packing should not be seen as a 'bail out' for the less skilled obstetrician who is unable to control obstetric haemorrhage using conventional techniques. Rather, this should be considered in cases of coagulopathy or where haemorrhage persists from raw surfaces, venous plexuses and inaccessible areas. MATERIALS AND METHODS: Data from seven women who underwent abdomino-pelvic packing for intractable postpartum bleeding were collected. The primary outcome was success of intra-abdominal packing and secondary outcomes included estimated blood loss, units transfused, length of stay and postoperative complications. RESULTS: All seven women (median age 39 years, interquartile range (IQR) 3.25) had caesarean section deliveries with median estimated blood loss of 5521.4 mL (IQR 4475) and median of 6.9 (IQR 4.75) units transfused. Abdomino-pelvic packing was successful in all cases including in three women who had continued bleeding after peripartum hysterectomy. In the remaining four, bleeding stopped with packing, enabling the uterus to be conserved. The median number of packs inserted was 6.1 (IQR 4.2) and median shock index at time of decision to pack was 0.98 (IQR 0.13). The median pack dwell time was 30.8 h (IQR 24), while median length of stay following removal was 48 h (IQR 2.14). CONCLUSION: Intractable bleeding in these seven cases was successfully controlled by abdomino-pelvic packing, allowing supportive correction of hypothermia, tissue acidosis, coagulopathy and hypovolemia. The technique of packing is an essential skill in managing massive obstetric haemorrhage, in addition to uterine balloon tamponade, compression sutures and peripartum hysterectomy.

CIN III Diagnosed following Surgical Termination of Pregnancy.

We present a case of a 30-year-old mother of four who was incidentally diagnosed with cervical intraepithelial neoplasia (CIN) III following surgical termination of pregnancy. Five years previously a routine smear test had shown mild dyskaryosis but was never repeated. She was referred to colposcopy and, underwent loop excision of the transformation zone (LLETZ) and subsequently vaginal hysterectomy. Without this incidental finding she would have undoubtedly developed cervical cancer. We discuss the deficiencies in current cervical cancer prevention strategies and termination of pregnancy services. We emphasise the importance of ensuring that patients with dyskaryosis are not lost to follow-up and we consider whether there should be clearer guidance on the value of histological examination of products of conception following termination of pregnancy.

Emergency department ultrasound diagnosis of spontaneous iliopsoas haemorrhage in a patient on warfarin.

A 87-year-old man presented to the emergency department (ED) with right-sided abdominal and thigh pain which had been present for the last 3 days and was getting worse. He had been diagnosed with a deep venous thrombosis of the left common femoral and superficial veins 10 days previously and had been discharged on a loading dose of warfarin and low-molecular weight heparin (dalteparin) injections. Despite his international normalised ratio being only 2.4, an ED ultrasound showed an unusual mass in the right iliac fossa, partly cystic and partly solid. A CT scan was performed which showed the lesion was a haematoma in the right iliopsoas muscle mass.

Just another negative DVT?

A 69-year-old woman presented to the emergency department (ED) with a swollen left thigh and leg. D-dimer test was positive, a radiology department ultrasound showed no direct evidence of a deep venous thrombosis but a lack of respiratory modulation was seen. ED ultrasound showed large groin lymph nodes and this, together with low haemoglobin, prompted a CT scan which led to the diagnosis of metastatic carcinoma.

No pain, no pathology?

A 22-year-old girl who had a background of reflux nephropathy and urinary tact infection presented during the night with renal angle pain and vomiting. She was treated on the emergency department (ED) pyelonephritis protocol and admitted to the short stay ward. When reviewed the next morning she was aymptomatic and feeling better. It seemed likely that she would be discharged but an ED ultrasound showed right-sided hydronephrosis and some fluid between the liver and the right kidney. CT examination confirmed the suspicion of renal tract obstruction and ruptured calyx. An 8 mm calculus was found to be the cause of the pathology. Urgent urological review was organised and the system formally decompressed with a J-J stent inserted cystoscopically later that day.

A molar masquerading as an ectopic pregnancy in the early first trimester: a salutary lesson.

The authors report a case in which a molar pregnancy was mistaken for an ectopic pregnancy in the early first trimester. This confusion delayed diagnosis and caused distress; follow-up led to the final diagnosis of complete hydatidiform mole. Correct preoperative diagnosis of molar pregnancy by ultrasound in early pregnancy may be tricky. It is important to obtain histological evidence to make the final diagnosis of gestational trophoblastic disease. While relatively rare, consideration of molar pregnancy in the differential diagnosis of early pregnancy loss may avoid unnecessary distress.

The "catheter bag" sign revisited: a simple way detecting bladder trauma during operative laparoscopic procedures.

Early detection and repair of bladder perforation reduce postoperative morbidity. We describe two cases of bladder perforation sustained during complicated laparoscopic adhesiolysis and discuss a previously reported simple method of detecting bladder trauma during operative laparoscopy.