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Biomedical subjects

T H Bhatti

Publications and source records attributed to T H Bhatti.

8 recordsLinked to original sources
PubMed1996

Modified Laryngeal Mask Airway--a useful aid to fiberoptic intubation.

Modified Laryngeal Mask (MLMA) aided fiberoptic intubation (FOI) using larger than 6 mm ID endotracheal tube was studied in 25 adult patients and compared to unaided FOI in another 25 patients. MLMA aided FOI was successful in 96% cases compared to 56% in the unaided group. Furthermore, the time to successful intubation was increased by 67.1% when FOI was attempted without MLMA aid which was statistically significant (P < 0.001). However, maximum fluctuations in the heart rate and mean arterial pressure in the immediate post-intubation period were statistically insignificant between the groups. We conclude that MLMA not only adds to success rate of FOI but also significantly reduce the FOI time in adult patients.

Adult↗
PubMed1995

CPAP with air and oxygen to non-ventilated lung improves oxygenation during one lung anaesthesia.

Ten adult patients undergoing one lung ventilation for elective thoracotomy were selected. All these patients failed to maintain oxygen saturation (SaO2) > 90% despite administration of 100% oxygen to the non-ventilated lung (NVL). These patients were studied for the efficacy of continuous positive airway pressure (CPAP) of the NVL using air and oxygen combination (FiO20.5) employing a variable FiO2CPAP system. It was observed that application of CPAP (5-10 cm H2O) with a mixture of air and oxygen to the NVL increased the SaO2 > 90% in all these patients. This could be attributed to nitrogen in air which prevented absorption atelectasis in the NVL. This produced a better ventilation/perfusion ratio and hence the increased oxygen saturation.

Adult↗
PubMed1993

Evaluation of patient controlled sedation and analgesia for ESWL.

This study was designed to evaluate the quality of sedation/analgesia and patient cooperation provided by Patient Controlled Sedation & Analgesia (PCSA) using propofol and fentanyl (Group II) when compared with anesthetist administered propofol/fentanyl (Group I) in 32 ASA I & II patients undergoing ESWL of renal or ureteric stones. Demographics of the patients and the duration of ESWL were similar in both groups. Dose of propofol/fentanyl used during the procedure was significantly higher in Group I patients as compared to group II (p less than 0.05). Interpatient variability in propofol requirement was reflected in both groups in the lack of significant correlation between propofol dose and procedure duration. PCSA provided a marginally higher degree of patient and surgeon satisfaction scores as compared to anesthetist administered propofol/fentanyl. Quick recovery was more consistent in the PCSA group as compared to group I patients.

Adult↗
PubMed1991

Minimum induction dose (MID) of thiopentone in Pakistani patients.

The thiopentone dose needed for abolition of eyelash reflex was studied in 505 Pakistani patients who were divided in three subgroups, i.e., age less than 16 years, between 16 and 60 years, and over 60 years. The minimum induction dose for thiopentone was then determined in the three groups and the effect of sex, ASA classification, premedication and advancing age were seen. The minimum induction dose in the adult patients (16-60) was 215.8 +/- 66 mgs (3.48 mgs/kg). Both the adult groups and the elderly showed a statistical difference in the dose required by the males and females, but this difference was not seen in children. Thiopentone dose also showed a steady decline as the age progressed. A statistical correlation existed between ASA I and II patients compared to ASA III who required less thiopentone. The premedicated patients required less thiopentone compared to those who did not receive a premedication. Our patients required a lesser dosage for abolition of eyelash reflex than the figures recommended for British population. We recommend a dose of 3.5 mg/kg for adult Pakistani males and 3.3 mg/kg for adult females.

Adolescent↗