A drop in serum progesterone from oocyte pick-up +3 days to +5 days in fresh blastocyst transfer, using hCG-trigger and standard luteal support, is associated with lower ongoing pregnancy rates.

Study Question: Do early- and mid-luteal serum progesterone (P4) levels impact ongoing pregnancy rates (OPRs) in fresh blastocyst transfer cycles using standard luteal phase support (LPS)?

Summary Answer: A drop in serum P4 level from oocyte pick-up (OPU) + 3 days to OPU + 5 days (negative ΔP4) is associated with a ∼2-fold decrease in OPRs.

What Is Known Already: In fresh embryo transfer cycles, significant inter-individual variation occurs in serum P4 levels during the luteal phase, possibly due to differences in endogenous P4 production after hCG trigger and/or differences in bioavailability of exogenously administered progesterone (P) via different routes. Although exogenous P may alleviate this drop in serum P4 in fresh transfer cycles, there is a paucity of data exploring the possible impact on reproductive outcomes of a reduction in serum P4 levels.

Indices of asthma among atopic and non-atopic woodworkers.

Aims: To investigate the relation between wood dust exposure and different indices of asthma among woodworkers and non-exposed subjects.

Methods: A total of 302 woodworkers and 71 non-exposed subjects answered a respiratory health questionnaire, underwent a non-specific bronchial provocation test using the Yan method, and received a skin prick test with 12 common inhalant allergens. Subgroups performed repeated peak flow monitoring and underwent a reversibility test.

Day 3 versus day 5 embryo transfer: a prospective randomized study.

Transfer of embryos at the blastocyst stage has been associated with exceptionally high implantation rates. There are, however, only a few prospective randomized studies comparing day 3 versus day 5 embryo transfer. Furthermore, the number of embryos replaced in the day 3 group transfer is often higher than the number of blastocysts replaced, thereby affecting implantation rates.

Musculoskeletal disorders among floor layers: is prevention possible?

The purpose of this study was to describe possibilities for the prevention of work-related musculoskeletal disorders among floor layers and to analyze the factors that promote or constrain innovation in prevention. A questionnaire study included 102 floor layers and 180 apprentice floor layers. Questionnaires were used to register musculoskeletal complaints, psychosocial factors, and proposals for prevention.

Determinants of wood dust exposure in the Danish furniture industry.

This paper investigates the relation between wood dust exposure in the furniture industry and occupational hygiene variables. During the winter 1997-98 54 factories were visited and 2362 personal, passive inhalable dust samples were obtained; the geometric mean was 0.95 mg/m(3) and the geometric standard deviation was 2.

Nasal patency is related to dust exposure in woodworkers.

Objectives: A cross sectional study of 54 furniture factories and three control factories was conducted to investigate the relation between subjective and objective nasal obstruction and exposure to wood dust.

Methods: Acoustic rhinometry was performed on 161 woodworkers and 19 controls. For each person, four measuring rounds were performed: before work, after 4 hours of work, and after 7 hours of work before and after decongestion.

Respiratory symptoms and lung function among Danish woodworkers.

A cross-sectional study including 54 furniture factories and three control factories was conducted to survey lung function and prevalence of respiratory symptoms among woodworkers. Spirometry was performed on 2423 persons. Questionnaires regarding respiratory symptoms and wood dust exposure were completed by 2033 woodworkers and 474 controls.

Health evaluation of volatile organic compound (VOC) emissions from wood and wood-based materials.

In this study, the authors describe a method for evaluation of material emissions. The study was based on chemical analysis of emissions from 23 materials representing solid wood and wood-based materials commonly used in furniture, interior furnishings, and building products in Denmark in the 1990s. The authors used the emission chamber testing method to examine the selected materials with a qualitative screening and quantitative determination of volatile organic compounds.

Wood dust exposure in the Danish furniture industry using conventional and passive monitors.

A study of wood dust exposure at furniture factories in one county in Denmark was performed as a cross sectional study. Dust exposure was measured with personal passive dust monitors and calibrated against active sampling on filters. Measurements of 1685 workers were included in the exposure assessment.

Nonspermatozoal cells in semen: relationship to other semen parameters and fertility status of the couple.

In semen samples from 94 men from infertile couples and 42 control patients proven to be fertile the occurrence of different kinds of nonspermatozoal cells (NSC) was examined. The findings were evaluated in relation to other seminal parameters and to the fertility status of the couple. The ratios of NSC to sperm and primary spermatocytes to spermatids revealed increasing values with decreasing sperm counts.

Flexible fibreoptic bronchoscopy via the laryngeal mask.

The efficacy of flexible fibreoptic bronchoscopy through the laryngeal mask was investigated in 20 patients under total intravenous anaesthesia with propofol, fentanyl, atropine and suxamethonium. Mask size 4 was used for men and size 3 for women. Ventilation was performed with oxygen in air, FIO2 0.

Recovery following thiopentone or propofol anaesthesia assessed by computerized coordination measurements.

Quantitative measurements of coordination ability and performance speed were carried out on 76 female day-case patients undergoing minor gynaecological operations. The women were assigned at random to the anaesthetic agent used, propofol 2.5 mg/kg or thiopentone 4 mg/kg.

Amelanotic malignant melanoma arising in an ovarian dermoid cyst.

Malignant transformation occurs in about 2% only of ovarian dermoid cysts. The clinical and histopathological findings in a rare case of primary ovarian malignant melanoma of amelanotic type are presented.

Acute periappendicitis after an elective section.

The diagnosis periappendicitis is well known. The causes to periappendicitis are manifold. In the literature, we have not yet found a case, where periappendicitis developed because amnion fluid passed to the peritoneum during an elective section.

Prepregnancy low body mass index is not a predictor of labor complications.

The course of delivery and fetal outcome in 149 women with forecoming normal pregnancy and a prepregnancy body mass index (BMI) less than 20.0 were compared to a similar group of women with BMI between 20.0 and 24.

Perforation of a pyometra mimicking a perforated peptic ulcer.

We report on a patient with a pyometra which leaked into the peritoneal cavity and was mistaken for a perforated peptic ulcer. There was no associated stenosis of the cervical canal.

Isolated torsion of the fallopian tube as differential diagnosis to acute abdominal pain in a thirteen years old girl.

The authors report a case of isolated torsion of the Fallopian tube in a thirteen years old girl. Only because of laparoscopy, the diagnosis was determined. Torsion of the fallopian tube as a differential diagnosis to acute abdomen is discussed.

Intramuscular (subfascial) vascular spindle cell lipoma. A case report.

Spindle cell lipoma is a distinct type of lipoma characterized by replacement of mature fat by collagen forming spindle cells. It is a benign lesion occurring chiefly in males older than 45 years and affects the subcutaneous tissues in the regions of the shoulder and posterior neck. Deep-seated (intramuscular) spindle cell lipomas are probably uncommon tumors and to date only two cases have been reported in the literature.

Isolated torsion of the fallopian tube as differential diagnosis to acute abdominal pain in a thirteen year old girl.

The Authors illustrate a case of torsion of the Fallopian tube in a young girl not yet sexually active. Even though this pathology is very rare in childhood and early puberty, torsion of the fallopian tube should be considered as a possible differential diagnosis in intermittent abdominal pain.

Extraocular sebaceous carcinoma of the skin with visceral metastases: case report.

Extraocular sebaceous gland carcinomas of the skin are uncommon neoplasms that may recur locally, but in contrast to their ocular counterparts infrequently metastasize. A case is reported in which a 62-year-old woman had a 1 cm scalp tumor incompletely excised. Microscopic examination revealed a sebaceous carcinoma.

Familial spontaneous pneumothorax.

In a three generation family with 27 members we examined a relationship could be found between spontaneous pneumothorax and HLA-haplotypes, alpha 1-antitrypsin phenotypes or concentration or lung volumes and ventilatory capacity. Eight individuals in the family suffered from spontaneous pneumothorax. No relationship with the investigated markers could be found in this informative family.

Uterus didelphys associated with duplex kidneys and ureters.

In a patient with uterus didelphys, four kidneys and four ureters were detected. The sister too has a didelphic uterus.

Multifocal adenomatous oncocytic hyperplasia in parotid glands with metastatic deposits or primary malignant transformation?

Rare tumorous lesions involving both parotid glands were found in a 90-year-old man at autopsy. The clinical course held together with the histopathological features of the parotid alterations, make it likely that they present a multifocal adenomatous oncocytic hyperplasia. Areas of clear cells and occurrence of papillary malignant foci lead to various differential diagnostic considerations.