Surgical Treatment of an Exuberant Case of Penoscrotal Elephantiasis.

Lymphedema is a manifestation of lymphatic system disturbance and deranged lymph transport, with resultant swelling, a proliferation of parenchymal and stromal elements, and excess deposition of the extracellular matrix. It may occur in any part of the body, most frequently in the limbs. Staging ranges from inconspicuous lymphatic system derangement to lymphatic elephantiasis.

Planning and understanding the intensive care network in the State of Rio de Janeiro (RJ), Brazil: a complex societal problem.

Objectives: To determine the optimal number of adult intensive care unit beds to reduce patient's queue waiting time and to propose policy strategies.

Methods: Multimethodological approach: (a) quantitative time series and queueing theory were used to predict the demand and estimate intensive care unit beds in different scenarios; (b) qualitative focus group and content analysis were used to explore physicians' attitudes and provide insights into their behaviors and belief-driven healthcare delivery changes.

Results: A total of 33,101 requests for 268 regulated intensive care unit beds in one year resulted in 25% admissions, 55% queue abandonment and 20% deaths.

[Schwannoma of the Upper Extremity: Retrospective Analysis of 17 Cases].

Introduction: Schwannoma or neurilemmoma is a benign peripheric nerve tumor that usually presents as a slow growing single lesion; it has origin in Schwann cells proliferation. Although it represents a small percentage of the benign tumors of the upper arm, it is the most frequent of neural origin. We present a retrospective study of upper limb schwannomas; our aim is establish the appropriate preoperative approach, to recognise the efficiency of the treatment and the pos-operative follow-up.

Difficulties in access and estimates of public beds in intensive care units in the state of Rio de Janeiro.

Objective: To estimate the required number of public beds for adults in intensive care units in the state of Rio de Janeiro to meet the existing demand and compare results with recommendations by the Brazilian Ministry of Health.

Methods: The study uses a hybrid model combining time series and queuing theory to predict the demand and estimate the number of required beds. Four patient flow scenarios were considered according to bed requests, percentage of abandonments and average length of stay in intensive care unit beds.

Pituitary thyrotropin (TSH) rebound phenomenon and kinetics of secretion in the goitrous rat: differential effects of thyroxine on synthesis and release of TSH.

The protein metabolism and [3H]-uridine uptake of thyroid and adenohypophysis and the kinetics of pituitary TSH rebound (PTR) were studied in goitrous female rats (fed propylthiouracil, PTU: for 7-12 weeks) following single, iv injections of L-thyroxine (T4: 0.8 to 200 mug). Goitrogenesis was associated with reduced protein concentration and enhanced uptake of [3H] uridine in both glands.

Prostaglandin administration to pregnant rats: effects on pituitary-target gland systems of mother, fetus and neonate (38512).

Acute administration of PGE-1 in graded doses (0.25-1.0 mg) to pregnant rats in late gestation (21st day) induced significant release of TSH, prolactin and LH from the maternal, pituitary.

Effects of acute and chronic administration of TRH on TSH and prolactin secretion in normal and hypothyroid rats.

Intravenous injection of the synthetic tripeptide (PyroGlu-His-Pro-NH2:TRH) effected the prompt release of TSH and prolactin (PRL) from the pituitary of the goitrous rat. Plasma TSH and PRL levels increased 2-3-fold within 1 min after the injection of 0.4 and 2 mug TRH.