1.Postoperative Spine Infections.
Abhijit Yuvaraj PAWAR ; Samar Kumar BISWAS
Asian Spine Journal 2016;10(1):176-183
Postoperative spinal wound infection increases the morbidity of the patient and the cost of healthcare. Despite the development of prophylactic antibiotics and advances in surgical technique and postoperative care, wound infection continues to compromise patient outcome after spinal surgery. Spinal instrumentation also has an important role in the development of postoperative infections. This review analyses the risk factors that influence the development of postoperative infection. Classification and diagnosis of postoperative spinal infection is also discussed to facilitate the choice of treatment on the basis of infection severity. Preventive measures to avoid surgical site (SS) infection in spine surgery and methods for reduction of all the changeable risk factors are discussed in brief. Management protocols to manage SS infections in spine surgery are also reviewed.
Anti-Bacterial Agents
;
Classification
;
Delivery of Health Care
;
Diagnosis
;
Humans
;
Postoperative Care
;
Risk Factors
;
Spine*
;
Wound Infection
2.Comeback of ketamine: resurfacing facts and dispelling myths
Korean Journal of Anesthesiology 2021;74(2):103-114
Initially known as CI-581, ketamine was first synthesized in 1962 as a replacement from phencyclidine. It has since been used as an anesthetic and analgesic. In addition, it has bronchodilating, sedative, and amnestic properties, preserving airway reflexes and sympathetic nervous system tone. Since the discovery of ketamine, it has been a major topic of discussion due to controversies regarding its usage in particular sets of patients. In the past 50 years, despite its potential benefits, it is not commonly used because of concerns of “emergence phenomenon,” its use as a substance of abuse, and its systemic side effects. Since 2012, three World Health Organization reviews on ketamine have addressed its international control.Researchers have been studying this wonder drug for a decade worldwide. Many myths of ketamine regarding emergence phenomenon and its use in traumatic brain injury and open eye injury have been disproved in recent times. It is becoming popular in pre-hospital settings, critical care, emergency medicine, low-dose acute pain services, and adjuvant in regional anesthesia techniques. This review highlights the current consensus on the various applications of ketamine in the literature.
3.Comeback of ketamine: resurfacing facts and dispelling myths
Korean Journal of Anesthesiology 2021;74(2):103-114
Initially known as CI-581, ketamine was first synthesized in 1962 as a replacement from phencyclidine. It has since been used as an anesthetic and analgesic. In addition, it has bronchodilating, sedative, and amnestic properties, preserving airway reflexes and sympathetic nervous system tone. Since the discovery of ketamine, it has been a major topic of discussion due to controversies regarding its usage in particular sets of patients. In the past 50 years, despite its potential benefits, it is not commonly used because of concerns of “emergence phenomenon,” its use as a substance of abuse, and its systemic side effects. Since 2012, three World Health Organization reviews on ketamine have addressed its international control.Researchers have been studying this wonder drug for a decade worldwide. Many myths of ketamine regarding emergence phenomenon and its use in traumatic brain injury and open eye injury have been disproved in recent times. It is becoming popular in pre-hospital settings, critical care, emergency medicine, low-dose acute pain services, and adjuvant in regional anesthesia techniques. This review highlights the current consensus on the various applications of ketamine in the literature.
4.Complex Obstetric Perineal Injury Reconstruction Using Antropyloric Valve Transposition
Saket KUMAR ; Noushif MEDAPPIL ; Sunil Kumar SINGH ; Abhijit CHANDRA
Annals of Coloproctology 2020;36(1):58-61
Despite significant advancements in the field of medicine, management of complex obstetric perineal injuries remains a challenge. Although several surgical techniques have been described, no techniques have provided satisfactory long-term results. Recently, a perineal transposed antropyloric valve has been used for anorectal reconstruction in patients with damaged or excised anal sphincters. We describe this technique in the case of complex obstetric perineal trauma with extensive tissue loss, presenting with end stage fecal incontinence. The functional outcome after this procedure was evaluated. The patient tolerated the surgery well, and there were no procedure-related upper gastrointestinal disturbances. Short-term functional outcomes were encouraging. At the 36-month follow-up, the patient’s neoanal resting and squeeze pressures were 50 and 70 mmHg, respectively. The postoperative St. Mark’s incontinence score was 7. Perineal antropyloric valve transposition is feasible and can be successfully applied in the management of end-stage fecal incontinence associated with complex obstetric perineal injury.
6.Ultrasound Guided Transversus Abdominis Plane Block for Anterior Cutaneous Nerve Entrapment Syndrome.
Rajendra Kumar SAHOO ; Abhijit S NAIR
The Korean Journal of Pain 2015;28(4):284-286
Anterior cutaneous nerve entrapment syndrome (ACNES) is one the most common cause of chronic abdominal wall pain. The syndrome is mostly misdiagnosed, treated wrongly and inadequately. If diagnosed correctly by history, examination and a positive carnett test, the suffering of the patient can be relieved by addressing the cause i.e. local anaesthetic with steroid injection at the entrapment site. Conventionally, the injection is done by landmark technique. In this report, we have described 2 patients who were diagnosed with ACNES who were offered ultrasound guided transverses abdominis plane (TAP) injection who got significant pain relief for a long duration of time.
Abdominal Muscles
;
Abdominal Pain
;
Abdominal Wall
;
Anatomic Landmarks
;
Chronic Pain
;
Diagnosis
;
Humans
;
Nerve Block
;
Nerve Compression Syndromes*
;
Ultrasonography*
7. HPTLC detection of altitudinal variation of the potential antivenin stigmasterol in different populations of the tropical ethnic antidote Rauvolfia serpentina
Abhijit DEY ; Devendra Kumar PANDEY
Asian Pacific Journal of Tropical Medicine 2014;7(S1):S540-S545
Objective: To determine the altitudinal variation of stigmasterol, a potential antivenin, in roots from seven populations of Rauvolfia serpentina (L). Benth. ex Kurz. (Apocynaceae) (R. serpentina), an important herb found in Indian subcontinent which has long been used in the treatment of snakebite, blood pressure and schizophrenia. Methods: Altitudinal variation of stigmasterol content in R. serpentina roots was analyzed by high performance thin layer chromatography. Chromatography was performed on silica gel 60 F
8.Physiological and Functional Evaluation of the Transposed Human Pylorus as a Distal Sphincter.
Abhijit CHANDRA ; Uday C GHOSHAL ; Vishal GUPTA ; Ramendra JAUHARI ; Rajendra N SRIVASTAVA ; Asha MISRA ; Ashok KUMAR ; Manoj KUMAR
Journal of Neurogastroenterology and Motility 2012;18(3):269-277
BACKGROUND/AIMS: Studies evaluating the human pylorus as a sphincter are scanty and contradictory. Recently, we have shown technical feasibility of transposing the human pylorus for end-stage fecal incontinence. This unique cohort of patients provided us an opportunity to study the sphincter properties of the pylorus in its ectopic position. METHODS: Antro-pylorus transposition on end sigmoid colostomies (n = 3) and in the perineum (n = 15) was performed for various indications. Antro-pylorus was assessed functionally (digital examination, high resolution spatiotemporal manometry, barium retention studies and colonoscopy) and by imaging (doppler ultrasound, MRI and CT angiography) in its ectopic position. RESULTS: The median resting pressure of pylorus on colostomy was 30 mmHg (range 28-38). In benign group, median resting pressure in perineum was 12.5 mmHg (range 6-44) that increased to 21.5 mmHg (range 12-29) (P = 0.481) and 31 mmHg (range 16-77) (P = 0.034) on first and second follow-up, respectively. In malignant group, median post-operative pressures were 20 mmHg (range 14-36) and 21 mmHg (range 18-44) on first and second follow-up, respectively. A definite tone and gripping sensation were felt in all the patients on digital examination. On distal loopogram, performed through the diverting colostomies, barium was retained proximal to the neo-pyloric valve. Both perineal ultrasound and MRI showed viable transposed graft. CT angiography and color doppler studies confirmed vascular flow in the transposed position. CONCLUSIONS: The human pyloric valve can function as a tonic sphincter when removed from the gastroduodenal continuity.
Angiography
;
Barium
;
Cohort Studies
;
Colon, Sigmoid
;
Colostomy
;
Fecal Incontinence
;
Follow-Up Studies
;
Gastroepiploic Artery
;
Hand Strength
;
Humans
;
Manometry
;
Perineum
;
Pylorus
;
Retention (Psychology)
;
Sensation
;
Transplants
9.Feasibility of Neurovascular Antropylorus Perineal Transposition With Pudendal Nerve Anastomosis Following Anorectal Excision: A Cadaveric Study for Neoanal Reconstruction.
Abhijit CHANDRA ; Ashok KUMAR ; M NOUSHIF ; Nitish GUPTA ; Vijay KUMAR ; Navneet Kumar CHAUHAN ; Vishal GUPTA
Annals of Coloproctology 2013;29(1):7-11
PURPOSE: Perineal transposition of the antropyloric valve following an anorectal excision as a substitute for a permanent colostomy has recently been reported in humans. However, the problem of neural control still remains in these patients. Our aim herein was to study the anatomical feasibility of an anastomosis between the pudendal nerve branches (inferior rectal nerve) innervating the external anal sphincter and the anterior vagal branches of the perineally-transposed antropyloric segment in cadavers. METHODS: The antropyloric segment, along with its carefully dissected branch of the anterior vagus, was mobilized based on the left gastroepiploic pedicle in six fresh human cadavers. The antropyloric valve was then transposed in the perineum after the pudendal nerve branches had been dissected out, and an approximation of these two nerves was performed to ascertain the technical feasibility of their neural anastomosis. RESULTS: The anterior vagus innervating the antropylorus could be harvested in all cadavers below the hepatic division of the main vagus trunk. The inferior rectal nerve or its branches were found consistently around the 3 or the 9 o'clock position in the ischioanal fossa. An anatomical tension-free approximation of the anterior vagus branch (of the transposed antropyloric segment) to the inferior rectal nerve in the perineum was feasible in all the cadavers studied. CONCLUSION: An inferior rectal nerve anastomosis with the anterior vagal branch of the perineally-transposed antropyloric segment can be achieved anatomically. This preliminary step can be the basis for future animal studies and subsequent clinical application of the procedure for possible neural control of the transposed antropyloric segment in the perineum.
Anal Canal
;
Animals
;
Cadaver
;
Colostomy
;
Humans
;
Perineum
;
Pudendal Nerve
;
Pylorus
;
Vagus Nerve
10.Sphenopalatine ganglion block for relieving postdural puncture headache: technique and mechanism of action of block with a narrative review of efficacy.
Abhijit S NAIR ; Basanth Kumar RAYANI
The Korean Journal of Pain 2017;30(2):93-97
The sphenopalatine ganglion (SPG) is a parasympathetic ganglion, located in the pterygopalatine fossa. The SPG block has been used for a long time for treating headaches of varying etiologies. For anesthesiologists, treating postdural puncture headaches (PDPH) has always been challenging. The epidural block patch (EBP) was the only option until researchers explored the role of the SPG block as a relatively simple and effective way to treat PDPH. Also, since the existing evidence proving the efficacy of the SPG block in PDPH is scarce, the block cannot be offered to all patients. EBP can be still considered if an SPG block is not able to alleviate pain due to PDPH.
Blood Patch, Epidural
;
Ganglia, Parasympathetic
;
Ganglion Cysts
;
Headache
;
Humans
;
Pain Management
;
Post-Dural Puncture Headache*
;
Pterygopalatine Fossa
;
Sphenopalatine Ganglion Block*