A sensitive and simultaneous liquid chromatography-tandem mass spectrometry method was developed and validated for quantification of ethinyl estradiol and levonorgestrel. The analytes were extracted with methyl-tert-butyl ether: n-hexane (50:50, v/v) solvent mixture, followed by dansyl derivatization. The chromatographic separation was performed on a Kinetex C18 (50 mm × 4.6 mm, 2.6μm) column with a mobile phase of 0.1% (v/v) formic acid in water and acetonitrile in gradient composition. The mass transitions were monitored in electrospray positive ionization mode. The assay exhibited a linear range of 0.100-20.0 ng/mL for levonorgestrel and 4.00-500 pg/mL for ethinyl estradiol in human plasma. A run time of 9.0 min for each sample made it possible to analyze a throughput of more than 100 samples per day. The validated method has been successfully used to analyze human plasma samples for application in pharmacokinetic and bioequivalence studies.

The ideal anesthetic drug choice for local infiltration anesthesia under monitored anesthesia care must provide analgesia and patients’ comfort along with a bloodless surgical field for patients. We hypothesized that dexemedetomidine can provide better visibility of the surgical field at a higher dose of 1 µg/kg than 0.5 µg/kg, along with providing sedation and analgesia. Methods: After institutional ethics committee clearance and written informed consent, this prospective, randomized, triple blind study was conducted on ninety patients, between 18- 65 years who were scheduled for tympanoplasty. The patients were randomly assigned to either the dexmedetomidine (DEX) 0.5 group or the DEX 1.0 group, and received 10 ml solution containing 2% lignocaine with 0.5 µg/kg dexmedetomidine, or the 1 µg/kg dexmedetomidine. The operative surgeon performed local infiltration using standardized 5-point infiltration technique around the auricle. The primary objective was to compare the intraoperative bleeding at the surgical site. The comparison of normally distributed variables was conducted using the Student’s t-test, whereas non-normally distributed variables was compared using the Mann-Whitney U test. The analysis of qualitative data was conducted using the chisquare/Fisher’s exact test. A P value less than 0.05 was considered statistically significant. Results: The overall bleeding score was significantly higher in the DEX 0.5 group (3.21 ± 0.727) than the DEX 1.0 group (1.43 ± 0.661) (P value < 0.001). The time to first analgesic requirement and surgeon satisfaction score were also significantly higher in the DEX 1.0 group. Conclusions: Combining dexmedetomidine at a dose of 1 µg/kg with 2% lignocaine for infiltration provided improved analgesia and improved the surgical field during tympanoplasty performed under monitored anesthesia care.

The ideal anesthetic drug choice for local infiltration anesthesia under monitored anesthesia care must provide analgesia and patients’ comfort along with a bloodless surgical field for patients. We hypothesized that dexemedetomidine can provide better visibility of the surgical field at a higher dose of 1 µg/kg than 0.5 µg/kg, along with providing sedation and analgesia. Methods: After institutional ethics committee clearance and written informed consent, this prospective, randomized, triple blind study was conducted on ninety patients, between 18- 65 years who were scheduled for tympanoplasty. The patients were randomly assigned to either the dexmedetomidine (DEX) 0.5 group or the DEX 1.0 group, and received 10 ml solution containing 2% lignocaine with 0.5 µg/kg dexmedetomidine, or the 1 µg/kg dexmedetomidine. The operative surgeon performed local infiltration using standardized 5-point infiltration technique around the auricle. The primary objective was to compare the intraoperative bleeding at the surgical site. The comparison of normally distributed variables was conducted using the Student’s t-test, whereas non-normally distributed variables was compared using the Mann-Whitney U test. The analysis of qualitative data was conducted using the chisquare/Fisher’s exact test. A P value less than 0.05 was considered statistically significant. Results: The overall bleeding score was significantly higher in the DEX 0.5 group (3.21 ± 0.727) than the DEX 1.0 group (1.43 ± 0.661) (P value < 0.001). The time to first analgesic requirement and surgeon satisfaction score were also significantly higher in the DEX 1.0 group. Conclusions: Combining dexmedetomidine at a dose of 1 µg/kg with 2% lignocaine for infiltration provided improved analgesia and improved the surgical field during tympanoplasty performed under monitored anesthesia care.

The ideal anesthetic drug choice for local infiltration anesthesia under monitored anesthesia care must provide analgesia and patients’ comfort along with a bloodless surgical field for patients. We hypothesized that dexemedetomidine can provide better visibility of the surgical field at a higher dose of 1 µg/kg than 0.5 µg/kg, along with providing sedation and analgesia. Methods: After institutional ethics committee clearance and written informed consent, this prospective, randomized, triple blind study was conducted on ninety patients, between 18- 65 years who were scheduled for tympanoplasty. The patients were randomly assigned to either the dexmedetomidine (DEX) 0.5 group or the DEX 1.0 group, and received 10 ml solution containing 2% lignocaine with 0.5 µg/kg dexmedetomidine, or the 1 µg/kg dexmedetomidine. The operative surgeon performed local infiltration using standardized 5-point infiltration technique around the auricle. The primary objective was to compare the intraoperative bleeding at the surgical site. The comparison of normally distributed variables was conducted using the Student’s t-test, whereas non-normally distributed variables was compared using the Mann-Whitney U test. The analysis of qualitative data was conducted using the chisquare/Fisher’s exact test. A P value less than 0.05 was considered statistically significant. Results: The overall bleeding score was significantly higher in the DEX 0.5 group (3.21 ± 0.727) than the DEX 1.0 group (1.43 ± 0.661) (P value < 0.001). The time to first analgesic requirement and surgeon satisfaction score were also significantly higher in the DEX 1.0 group. Conclusions: Combining dexmedetomidine at a dose of 1 µg/kg with 2% lignocaine for infiltration provided improved analgesia and improved the surgical field during tympanoplasty performed under monitored anesthesia care.

The ideal anesthetic drug choice for local infiltration anesthesia under monitored anesthesia care must provide analgesia and patients’ comfort along with a bloodless surgical field for patients. We hypothesized that dexemedetomidine can provide better visibility of the surgical field at a higher dose of 1 µg/kg than 0.5 µg/kg, along with providing sedation and analgesia. Methods: After institutional ethics committee clearance and written informed consent, this prospective, randomized, triple blind study was conducted on ninety patients, between 18- 65 years who were scheduled for tympanoplasty. The patients were randomly assigned to either the dexmedetomidine (DEX) 0.5 group or the DEX 1.0 group, and received 10 ml solution containing 2% lignocaine with 0.5 µg/kg dexmedetomidine, or the 1 µg/kg dexmedetomidine. The operative surgeon performed local infiltration using standardized 5-point infiltration technique around the auricle. The primary objective was to compare the intraoperative bleeding at the surgical site. The comparison of normally distributed variables was conducted using the Student’s t-test, whereas non-normally distributed variables was compared using the Mann-Whitney U test. The analysis of qualitative data was conducted using the chisquare/Fisher’s exact test. A P value less than 0.05 was considered statistically significant. Results: The overall bleeding score was significantly higher in the DEX 0.5 group (3.21 ± 0.727) than the DEX 1.0 group (1.43 ± 0.661) (P value < 0.001). The time to first analgesic requirement and surgeon satisfaction score were also significantly higher in the DEX 1.0 group. Conclusions: Combining dexmedetomidine at a dose of 1 µg/kg with 2% lignocaine for infiltration provided improved analgesia and improved the surgical field during tympanoplasty performed under monitored anesthesia care.

The ideal anesthetic drug choice for local infiltration anesthesia under monitored anesthesia care must provide analgesia and patients’ comfort along with a bloodless surgical field for patients. We hypothesized that dexemedetomidine can provide better visibility of the surgical field at a higher dose of 1 µg/kg than 0.5 µg/kg, along with providing sedation and analgesia. Methods: After institutional ethics committee clearance and written informed consent, this prospective, randomized, triple blind study was conducted on ninety patients, between 18- 65 years who were scheduled for tympanoplasty. The patients were randomly assigned to either the dexmedetomidine (DEX) 0.5 group or the DEX 1.0 group, and received 10 ml solution containing 2% lignocaine with 0.5 µg/kg dexmedetomidine, or the 1 µg/kg dexmedetomidine. The operative surgeon performed local infiltration using standardized 5-point infiltration technique around the auricle. The primary objective was to compare the intraoperative bleeding at the surgical site. The comparison of normally distributed variables was conducted using the Student’s t-test, whereas non-normally distributed variables was compared using the Mann-Whitney U test. The analysis of qualitative data was conducted using the chisquare/Fisher’s exact test. A P value less than 0.05 was considered statistically significant. Results: The overall bleeding score was significantly higher in the DEX 0.5 group (3.21 ± 0.727) than the DEX 1.0 group (1.43 ± 0.661) (P value < 0.001). The time to first analgesic requirement and surgeon satisfaction score were also significantly higher in the DEX 1.0 group. Conclusions: Combining dexmedetomidine at a dose of 1 µg/kg with 2% lignocaine for infiltration provided improved analgesia and improved the surgical field during tympanoplasty performed under monitored anesthesia care.

Anatomical variations of pancreatic head and uncinate process are rarely encountered in clinical practice. These variations are primarily attributed to the complex development of the pancreas. An unduly enlarged uncinate process of the pancreas overlapping the third part of duodenum was discovered during dissection. This malformation of the pancreatic uncinate process was considered to be due to excessive fusion between the ventral and dorsal buds during embryonic development. On further dissection, an avascular pancreatico-duodenal fold guarding the pancreatico-duodenal recess was observed. The enlarged uncinate process can cause compression of neurovascular structures and also cause compression of adjoining viscera. The pancreatico-duodenal recess becomes a potential site for internal herniation. This case is of particular interest to the gastroenterologists and surgeons performing surgical resections. Precise knowledge of embryogenesis of such pancreatic anomalies is necessary for understanding and thus treating many diseases of the pancreas.
Duodenum ; Embryonic Development ; Female ; Head ; Hypertrophy ; Pancreas* ; Pregnancy ; Viscera