Horner's syndrome or occulo-sympathetic paralysis is a disorder occurring infrequently as a complication of epidural anaesthesia. The incidence increases when epidural analgesia is used in obstetrics possibly because of physiological and anatomical changes in obstetric patients favouring spread of the local anaesthetic.

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As general anaesthesia administered during the first two trimesters of pregnancy for gynaecological procedures was associated with a high incidence of mis-carriage and exposes the fetus to teratogenic effects of drugs, a case of successful breast tumour extraction under thoracic paravertebral block is reported with review of the literature.

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Cardiac stabilization during “off-pump” coronary revascularization (OPCAB) has been implicated in causing intraoperative hemodynamic disturbances. Stroke volume and cardiac output reductions may alter the ventilation/perfusion ratio in the lungs and compromise the gas exchange. This study was conducted to determine the impact of heart’s stabilization on arterial blood-gas profile in patients undergoing OPCAB surgery.

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Superior vena cava (SVC) lies in the upper mediastinum, laterally to the right in the great vessel area. It serves the venous drainage of the upper part of the body, including the brain, directing the flow to the right atrium. Lung cancer, mediastinal malignancies, benign conditions and a variety of other diseases and clinical conditions in the adult population may lead to surgery involving this large vein.

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This study was undertaken to examine the impact of the variations of cardiac mechanical work in heart’s respiratory quotient (RQ) and venoarterial carbon dioxide difference (ΔPCO2). In twenty-seven patients undergoing coronary artery bypass grafting under extracorporeal circulation, a coronary sinus line was instituted and it’s correct position was verified by the waveform displayed in the monitor. Immediately after cannulae placement, a haemodynamic profile was obtained and simultaneous arterial and coronary sinus (a & cs) sampling for blood gas analysis was done in an ABL 720 (Radiometer Copenhagen) analyzer.

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