A Fixed Flow is More Effective than Titrated Flow during Bubble Nasal CPAP for Respiratory Distress in Preterm Neonates.

Background: The clinical effects of a pre-fixed flow of air-oxygen versus a flow titrated according to visible bubbling are not well understood.

Objective: To compare the effects of a fixed flow (5 L/min) and titrated flow (flow just enough to ensure bubbling) at different set pressures on delivered intra-prong pressure, gas exchange and clinical parameters in preterm infants on bubble CPAP for respiratory distress.

Methods: Preterm infants <35 weeks gestational age on bubble CPAP and <96 h of age were enrolled in this crossover study.

Dexmedetomidine an adjuvant to levobupivacaine in supraclavicular brachial plexus block: a randomized double blind prospective study.

Background: Apha-2 agonists are combined with local anesthetics to extend the duration of regional anesthesia. We evaluated the effect of combining dexmedetomidine with levobupivacine with respect to duration of motor and sensory block and duration of analgesia.

Methods: Sixty patients scheduled for elective forearm and hand surgery were divided into two equal groups in a randomized double blind fashion.

Primary malignant fibrous histiocytoma involving the left pulmonary vein presenting as a left atrial tumor.

A 35-year-old woman presented with 4 months history of progressively increasing intermittent dyspnea and hemoptysis. Transthoracic echocardiography revealed a loculated mass in the left atrium (LA). A provisional diagnosis of LA myxoma was made.

A rare case of a left atrial hemangioma mimicking a myxoma.

A 68-year-old gentleman presented with a recent history of exertional dyspnea associated with anginal chest pain. Transthoracic echocardiography revealed a well-circumscribed mass in the left atrium attached to the inter-atrial septum. A provisional diagnosis of left atrial (LA) myxoma was made.

A transesophageal echocardiography technique to locate the kidney and monitor renal perfusion.

Monitoring the renal arterial Doppler flow velocity indices, the resistive index and pulsatility index, with ultrasound may help predict renal dysfunction. However, such monitoring has been done intermittently by transcutaneous ultrasound in the postoperative intensive care setting. In the operating room, transesophageal echocardiography (TEE) is an alternative to transcutaneous ultrasound for obtaining indices of renal perfusion.