Dr Ari G Chacko

Research and Publication

• Rajan RR, Shyamasunder H, Chacko G, SD, Jeyachandran R, Chacko AG, Prabhu K, Rajaratnam S, Kapoor N, Thomas N, Pai R.
  Dopamine receptor expression predicts cabergoline response in persistent somatotroph adenoma.
  Pituitary. 2025 Jul 23;28(4):87.
• Goyal-Honavar A, Abraham AP, Asha HS, Chacko G, Chacko AG.
  Functional transformation of a corticotroph pituitary neuroendocrine tumor 128 months following primary excision: a case report.
  Turk Neurosurg. 2025;35(2):355-9.
• Goyal-Honavar A, Gandham EJ, Chacko AG.
  Pial laceration from a dural suture causing devastating neurological deficits.
  Acta Neurochir Suppl. 2025;133:21-5.
• Vupputuri H, D’Souza WP, Ralte Z, Malleshappa V, Chacko AG, Rupa V, Rajshekhar V.
  Comparison of sinonasal outcomes in patients undergoing uni-nostril and bi-nostril endoscopic trans-sphenoidal excision of pituitary adenomas: a prospective study.
  J Neurol Surg B Skull Base. 2023 Sep 25;85(5):489-500.
• Goyal-Honavar A, Markose AP, Gupta A, Manesh A, Varghese GM, Rose W, Jonathan GE, Prabhu K, Chacko AG.
  Distinct patterns of postoperative fever in paediatric neurosurgery patients.
  Childs Nerv Syst. 2024 Jun;40(6):1849-58.
• Sathya A, Goyal-Honavar A, Chacko AG, Jasper A, Chacko G, Devakumar D, Seelam JA, Sasidharan BK, Pavamani SP, Thomas HMT.
  Is radiomics a useful addition to magnetic resonance imaging in the preoperative classification of PitNETs?
  Acta Neurochir (Wien). 2024 Feb 20;166(1):91.
• Rajan R, Chacko AG, Verma S, Kapoor N, Paul T, Thomas N, Jebasingh F, Cherian KE, Sahu S, Shyamasunder AH.
  Predictors of delayed hyponatraemia after surgery for pituitary tumour.
  Horm Metab Res. 2023 Jun;55(6):395-401.
• Gandham EJ, Goyal-Honavar A, Johnson LR, Gupta A, Thomas R, Devasahayam S, Prabhu K, Chacko AG.
  A negative-pressure face-mounted system reduces aerosol spread during endonasal endoscopic surgery.
  J Neurol Surg B Skull Base. 2022 May 17;84(3):217-24.
• Cossu G, Jouanneau E, Cavallo LM, Froelich S, Starnoni D, Giammattei L, Harel E, Mazzatenta D, Bruneau M, Meling TR, Berhouma M, Chacko AG, Cornelius JF, Paraskevopoulos D, Schroeder HWS, Zazpe I, Manet R, Gardner PA, Dufour H, Cappabianca P, Daniel RT, Messerer M.
  Surgical management of giant pituitary neuroendocrine tumors: meta-analysis and consensus statement on behalf of the EANS skull base section.
  Brain Spine. 2022 Mar 28;2:100878.
• Kurian DE, VR, Horo S, Chacko AG, Prabhu K, Mahasampath G, Korah S.
  Predictive value of retinal nerve fibre layer thickness for postoperative visual improvement in patients with pituitary macroadenoma.
  BMJ Open Ophthalmol. 2022 Jul;7(1):e000964.
• Sarkar S, Korula S, Mathai S, Simon A, Balakrishnan R, Backianathan S, Chacko AG.
  Upfront adjuvant irradiation versus postoperative surveillance following incomplete surgical resection of craniopharyngiomas in children and young adults.
  Childs Nerv Syst. 2022 Oct;38(10):1877-83.
• Balakumar S, Pai R, Chacko AG, Patel B, Nancy R, Balakrishnan R, Sarkar S, Sampath G, Chacko G.
  Telomerase reverse transcriptase promoter mutations in a cohort of adult gliomas: clinicopathological correlates.
  Neurol India. 2022 May-Jun;70(3):953-9.
• Goyal-Honavar A, Gupta A, Manesh A, Varghese GM, Jonathan GE, Prabhu K, Chacko AG.
  A prospective evaluation of postoperative fever in adult neurosurgery patients in the COVID-19 era.
  J Clin Neurosci. 2022 Sep;103:26-33.
• Gandham EJ, Goyal-Honavar A, Beno D, Pai R, Balakrishnan R, Jasper A, Gowri M, Moorthy RK, Chacko AG, Chacko G.
  Impact of grade on survival in pleomorphic xanthoastrocytoma and low prevalence of BRAF V600E mutation.
  World Neurosurg. 2022 Aug;164:e922-8.
• Goyal-Honavar A, Balasundaram A, Thayakaran IP, Babu M, Pai R, Joseph J, Jayachandran R, Chacko AG, Mathew LG, Balakrishnan R, Rajshekhar V, Jeyaseelan L, Sudarsanam TD, Chacko G.
  ZFTA (zinc finger translocation associated) fusion in supratentorial ependymomas: low prevalence in South Asians and no correlation with survival.
  World Neurosurg. 2022 Aug;164:e82-90.
• Sarkar S, Chacko SR, Korula S, Hesarghatta A, Balakrishnan R, Mathai S, Simon A, Chacko G, Prabhu K, Chacko AG.
  A comparison of long-term treatment outcomes between giant and nongiant craniopharyngiomas.
  World Neurosurg. 2022 Jun;162:e587-96.
• Goyal-Honavar A, Balakrishnan R, Chacko G, Chacko AG.
  Radiation-induced intravascular papillary endothelial hyperplasia in a cavernous sinus hemangioma.
  Neurol India. 2022 Jan-Feb;70(1):359-62.
• Gupta A, Chacko G, Chacko AG.
  Prevalence and pattern of leptomeningeal pigmentation in the human brain and its role in the safe surgical excision of extra-axial brain tumors.
  Neurol India. 2021 Sep-Oct;69(5):1204-9.
• Abraham AP, Pai R, Beno DL, Chacko G, Asha HS, Rajaratnam S, Kapoor N, Thomas N, Chacko AG.
  USP8, USP48, and BRAF mutations differ in their genotype-phenotype correlation in Asian Indian patients with Cushing’s disease.
  Endocrine. 2022 Feb;75(2):549-59.
• Ajith A, Mondal S, Chattopadhyay S, Kumar A, Sthanikam Y, Chacko AG, Prabhu K, Chacko G, Vanjare HA, Rajesh RV, Banerjee S.
  Mass spectrometry imaging deciphers dysregulated lipid metabolism in the human hippocampus affected by temporal lobe epilepsy.
  ACS Chem Neurosci. 2021 Nov 3;12(21):4187-94.
• Goyal-Honavar A, Sarkar S, Chacko G, Balakrishnan R, Asha HS, Chacko AG.
  Growth hormone storm following infarction of a residual growth hormone secreting pituitary macroadenoma.
  Br J Neurosurg. 2024 Aug;38(4):983-6.
• Starnoni D, Tuleasca C, Giammattei L, Cossu G, Bruneau M, Berhouma M, Cornelius JF, Cavallo L, Froelich S, Jouanneau E, Meling TR, Paraskevopoulos D, Schroeder H, Tatagiba M, Zazpe I, Sufianov A, Sughrue ME, Chacko AG, Benes V, González-Lopez P, Roche PH, Levivier M, Messerer M, Daniel RT.
  Surgical management of anterior clinoidal meningiomas: consensus statement on behalf of the EANS skull base section.
  Acta Neurochir (Wien). 2021 Dec;163(12):3387-400.
• Goyal-Honavar A, Sarkar S, Asha HS, Kapoor N, Balakrishnan R, Vanjare H, Chacko G, Chacko AG.
  A clinicoradiological analysis of silent corticotroph adenomas after the introduction of pituitary-specific transcription factors.
  Acta Neurochir (Wien). 2021 Nov;163(11):3143-54.
• Salunke P, Sahoo SK, Chacko AG, Baishya BK, Tripathi M, Chabbra R, Karthigeyan M, Aggarwal A, Singh A, Gupta SK.
  Feasibility of conducting a virtual exit exam in neurosurgery during the SARS-CoV-19 pandemic.
  Neurol India. 2021 May-Jun;69(3):698-702.
• Goyal-Honavar A, Gupta A, Chacko G, Chacko AG.
  Trigeminal hybrid nerve sheath tumor: a case report and literature review.
  Br J Neurosurg. 2023 Oct;37(5):1326-9.
• Gupta A, Goyal-Honavar A, Jonathan GE, Prabhu K, Varghese GM, Rupali P, Chacko AG.
  Adapting management strategies for sellar-suprasellar lesions during the COVID-19 pandemic: a pragmatic approach from the frontline.
  Br J Neurosurg. 2024 Jun;38(3):596-603.
• Goyal-Honavar A, Sarkar S, Asha HS, Kapoor N, Thomas R, Balakrishnan R, Chacko G, Chacko AG.
  Impact of experience on outcomes after endoscopic transsphenoidal surgery for acromegaly.
  World Neurosurg. 2021 Jul;151:e1007-15.
• Shyamasunder AH, Pai R, Ramamoorthy H, Sakhti D, Manipadam MT, Kapoor N, Paul TV, Jebasingh F, Thomas N, Abraham DT, Paul MJ, Chacko AG, Prabhu K, Rajaratnam S.
  Clinical profile and mutations associated with multiple endocrine neoplasia type 1 (MEN1) and their first-degree relatives at risk of developing MEN1: a prospective study.
  Horm Metab Res. 2021 Apr;53(4):245-56.
• Goyal-Honavar A, Chacko G, Chacko AG.
  Supratentorial primary paraganglioma with good long-term outcome following radical excision.
  Br J Neurosurg. 2023 Dec;37(6):1766-9.
• Pramila PJ, Mannam P, Chacko AG, Benjamin RN.
  Progressive midbrain clefts after head trauma and decompressive surgery: a report of two patients.
  BMJ Case Rep. 2021 Feb 1;14(2):e238893.
• Sarkar S, Chacko SR, Korula S, Simon A, Mathai S, Chacko G, Chacko AG.
  Long-term outcomes following maximal safe resection in a contemporary series of childhood craniopharyngiomas.
  Acta Neurochir (Wien). 2021 Feb;163(2):499-509.
• Benjamin RN, Thomas M, Muthusamy K, Yoganathan S, Mathew V, Chacko AG, Prabhu K, Chacko G.
  Age-dependent reduction in severity and discrete topographical patterns in Rasmussen encephalitis: a link to cortical maturation?
  Pediatr Neurol. 2020 Nov;112:25-33.
• Chacko SR, Abraham AP, Asha HS, Kapoor N, Rajaratnam S, Chacko AG.
  Selective perioperative steroid supplementation protocol in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas.
  Acta Neurochir (Wien). 2020 Oct;162(10):2381-8.
• Starnoni D, Giammattei L, Cossu G, Link MJ, Roche PH, Chacko AG, Ohata K, Samii M, Suri A, Bruneau M, Cornelius JF, Cavallo L, Meling TR, Froelich S, Tatagiba M, Sufianov A, Paraskevopoulos D, Zazpe I, Berhouma M, Jouanneau E, Verheul JB, Tuleasca C, George M, Levivier M, Messerer M, Daniel RT.
  Surgical management for large vestibular schwannomas: a systematic review, meta-analysis, and consensus statement on behalf of the EANS skull base section.
  Acta Neurochir (Wien). 2020 Nov;162(11):2595-617.
• Abraham AP, Bindra MS, Chacko AG.
  Secondary bacterial infection of a solitary cysticercus granuloma.
  Neurol India. 2020 May-Jun;68(3):684-7.
• Sarkar S, Chacko AG.
  Surgery for acromegaly.
  Neurol India. 2020 May-Jun;68(Suppl):S44-51.
• Sathyakumar K, Mani S, Pathak GH, Prabhu K, Chacko AG, Chacko G.
  Neuroimaging of pediatric infratentorial tumors and the value of diffusion-weighted imaging (DWI) in determining tumor grade.
  Acta Radiol. 2021 Apr;62(4):533-40.
• Cossu G, Jouanneau E, Cavallo LM, Elbabaa SK, Giammattei L, Starnoni D, Barges-Coll J, Cappabianca P, Benes V, Baskaya MK, Bruneau M, Meling T, Schaller K, Chacko AG, Youssef AS, Mazzatenta D, Ammirati M, Dufour H, Laws E, Berhouma M, Daniel RT, Messerer M.
  Surgical management of craniopharyngiomas in adult patients: a systematic review and consensus statement on behalf of the EANS skull base section.
  Acta Neurochir (Wien). 2020 May;162(5):1159-77.
• Vupputuri H, Gandham EJ, Mani SA, Raju KP, Aaron S, Chacko AG.
  Dynamic imaging of the craniovertebral junction is mandatory in patients with posterior circulation strokes.
  Eur Spine J. 2020 May;29(5):1078-86.
• Valmiki RR, Venkatesalu S, Chacko AG, Prabhu K, Thomas MM, Mathew V, Yoganathan S, Muthusamy K, Chacko G, Vanjare HA, Krothapalli SB.
  Phosphoproteomic analysis reveals Akt isoform-specific regulation of cytoskeleton proteins in human temporal lobe epilepsy with hippocampal sclerosis.
  Neurochem Int. 2020 Mar;134:104654.
• Abraham AP, Sarkar S, Mannam P, Chacko G, Chacko AG.
  A rare case of a giant tentorial bicompartmental cystic schwannoma unrelated to the cranial nerves.
  Neurol India. 2019 May-Jun;67(3):932-3.
• Chacko SR, Chacko AG.
  Antiprogesterone therapy in recurrent meningiomas: a disappointing end to four decades of research?
  Neurol India. 2019 May-Jun;67(3):706-7.
• Konay AS, Williams A, Chacko AG, Singh G.
  A prospective randomized trial comparing topical intranasal lidocaine and levobupivacaine in patients undergoing endoscopic binostril transnasal transsphenoidal resection of pituitary tumors.
  J Neurosurg Anesthesiol. 2021 Jan;33(1):51-7.
• Abraham AP, Thomas MM, Mathew V, Muthusamy K, Yoganathan S, Jonathan GE, Prabhu K, Daniel RT, Chacko AG.
  EEG lateralization and seizure outcome following peri-insular hemispherotomy for pediatric hemispheric epilepsy.
  Childs Nerv Syst. 2019 Jul;35(7):1189-95.
• Geevar T, Pai R, Chacko G, Malepathi K, Patel B, John J, Chacko AG, Balakrishnan R, John S.
  Molecular profile of tumors with oligodendroglial morphology: clinical relevance.
  Neurol India. 2018 Nov-Dec;66(6):1726-31.
• Tobin G, Chacko AG, Simon R.
  Evaluation of NT-ProBNP as a marker of the volume status of neurosurgical patients developing hyponatremia and natriuresis: a pilot study.
  Neurol India. 2018 Sep-Oct;66(5):1383-8.
• Turel MK, Chacko AG.
  Endoscopic partial cervical corpectomy - opening a new door to create a wider window.
  Neurol India. 2018 Mar-Apr;66(2):452-3.
• Abraham AP, Gandham EJ, Prabhu K, Chacko AG.
  Authors' reply: in defence of subgaleoatrial shunt!
  Neurol India. 2018 Jan-Feb;66(1):286-7.
• Jonathan GE, Sarkar S, Singh G, Mani S, Thomas R, Chacko AG.
  A randomized controlled trial to determine the role of intraoperative lumbar cerebrospinal fluid drainage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas.
  Neurol India. 2018 Jan-Feb;66(1):133-8.
• Subramanian D, Pralong E, Daniel RT, Chacko AG, Stoop R, Babu KS.
  Gamma oscillatory activity in vitro: a model system to assess pathophysiological mechanisms of comorbidity between autism and epilepsy.
  Transl Psychiatry. 2018 Jan 10;8(1):16.
• Abraham AP, Gandham EJ, Prabhu K, Chacko AG.
  Subgaleoatrial shunt: further progress in the management of iatrogenic cranial pseudomeningoceles.
  Neurol India. 2017 Sep-Oct;65(5):1178-80.
• Paul AP, Vedantam A, Korula G, Chacko AG.
  A comparison of the recovery profiles of desflurane and isoflurane anesthesia in patients undergoing elective supratentorial craniotomy: a randomized controlled trial.
  Neurol India. 2017 Sep-Oct;65(5):1053-8.
• Sarkar S, Philip VJ, Cherukuri SK, Chacko AG, Chacko G.
  Implications of the World Health Organization definition of atypia on surgically treated functional and non-functional pituitary adenomas.
  Acta Neurochir (Wien). 2017 Nov;159(11):2179-86.
• Gandham EJ, Sundaresan R, Thomas R, Chacko AG.
  A novel nasoseptal flap harvesting technique in revision expanded endoscopic transsphenoidal approaches.
  Neurol India. 2017 Jan-Feb;65(1):129-33.
• Thomas R, Girishan S, Chacko AG.
  Endoscopic transmaxillary transposition of temporalis flap for recurrent cerebrospinal fluid leak closure.
  J Neurol Surg B Skull Base. 2016 Dec;77(6):445-8.
• Gupta N, Chacko G, Chacko AG, Rajshekhar V, Jayprakash M.
  Fluorescence in situ hybridization for chromosome 14q deletion in subsets of meningioma segregated by MIB-1 labelling index.
  Neurol India. 2016 Nov-Dec;64(6):1256-63.
• Thomas R, Chacko AG.
  Principles in skull base reconstruction following expanded endoscopic approaches.
  J Neurol Surg B Skull Base. 2016 Aug;77(4):358-63.
• Velayutham P, Rajshekhar V, Chacko AG, Krothapalli Babu S.
  Influence of tumor location and other variables on predictive value of intraoperative myogenic motor-evoked potentials in spinal cord tumor surgery.
  World Neurosurg. 2016 Aug;92:264-72.
• Turel MK, D'Souza WP, Chacko AG, Rajshekhar V.
  Giant vestibular schwannomas: surgical nuances influencing outcome in 179 patients.
  Neurol India. 2016 May-Jun;64(3):478-84.
• Sivaraju L, Mani S, Prabhu K, Daniel RT, Chacko AG.
  Three-dimensional computed tomography angiographic study of the vertebral artery in patients with congenital craniovertebral junction anomalies.
  Eur Spine J. 2017 Apr;26(4):1028-38.
• Abraham AP, Srinivas SB, Murthy M, Babu KS, Chacko AG.
  Surface electromyography activity in the upper limbs of patients following surgery for compressive cervical myelopathy.
  Neurol India. 2015 Nov-Dec;63(6):903-10.
• Sarkar S, Rajaratnam S, Chacko G, Mani S, Hesargatta AS, Chacko AG.
  Pure endoscopic transsphenoidal surgery for functional pituitary adenomas: outcomes with Cushing's disease.
  Acta Neurochir (Wien). 2016 Jan;158(1):77-86; discussion 86.
• Abraham AP, Sarkar S, Mannam P, Chacko G, Chacko AG.
  A rare case of a giant tentorial bicompartmental cystic schwannoma unrelated to the cranial nerves.
  Neurol India. 2019 May-Jun;67(3):932-3.
• Chacko SR, Chacko AG.
  Antiprogesterone therapy in recurrent meningiomas: a disappointing end to four decades of research?
  Neurol India. 2019 May-Jun;67(3):706-7.
• Konay AS, Williams A, Chacko AG, Singh G.
  A prospective randomized trial comparing topical intranasal lidocaine and levobupivacaine in patients undergoing endoscopic binostril transnasal transsphenoidal resection of pituitary tumors.
  J Neurosurg Anesthesiol. 2021 Jan;33(1):51-7.
• Abraham AP, Thomas MM, Mathew V, Muthusamy K, Yoganathan S, Jonathan GE, Prabhu K, Daniel RT, Chacko AG.
  EEG lateralization and seizure outcome following peri-insular hemispherotomy for pediatric hemispheric epilepsy.
  Childs Nerv Syst. 2019 Jul;35(7):1189-95.
• Geevar T, Pai R, Chacko G, Malepathi K, Patel B, John J, Chacko AG, Balakrishnan R, John S.
  Molecular profile of tumors with oligodendroglial morphology: clinical relevance.
  Neurol India. 2018 Nov-Dec;66(6):1726-31.
• Tobin G, Chacko AG, Simon R.
  Evaluation of NT-ProBNP as a marker of the volume status of neurosurgical patients developing hyponatremia and natriuresis: a pilot study.
  Neurol India. 2018 Sep-Oct;66(5):1383-8.
• Turel MK, Chacko AG.
  Endoscopic partial cervical corpectomy - opening a new door to create a wider window.
  Neurol India. 2018 Mar-Apr;66(2):452-3.
• Abraham AP, Gandham EJ, Prabhu K, Chacko AG.
  Authors' reply: in defence of subgaleoatrial shunt!
  Neurol India. 2018 Jan-Feb;66(1):286-7.
• Jonathan GE, Sarkar S, Singh G, Mani S, Thomas R, Chacko AG.
  A randomized controlled trial to determine the role of intraoperative lumbar cerebrospinal fluid drainage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas.
  Neurol India. 2018 Jan-Feb;66(1):133-8.
• Subramanian D, Pralong E, Daniel RT, Chacko AG, Stoop R, Babu KS.
  Gamma oscillatory activity in vitro: a model system to assess pathophysiological mechanisms of comorbidity between autism and epilepsy.
  Transl Psychiatry. 2018 Jan 10;8(1):16.
• Abraham AP, Gandham EJ, Prabhu K, Chacko AG.
  Subgaleoatrial shunt: further progress in the management of iatrogenic cranial pseudomeningoceles.
  Neurol India. 2017 Sep-Oct;65(5):1178-80.
• Paul AP, Vedantam A, Korula G, Chacko AG.
  A comparison of the recovery profiles of desflurane and isoflurane anesthesia in patients undergoing elective supratentorial craniotomy: a randomized controlled trial.
  Neurol India. 2017 Sep-Oct;65(5):1053-8.
• Sarkar S, Philip VJ, Cherukuri SK, Chacko AG, Chacko G.
  Implications of the World Health Organization definition of atypia on surgically treated functional and non-functional pituitary adenomas.
  Acta Neurochir (Wien). 2017 Nov;159(11):2179-86.
• Gandham EJ, Sundaresan R, Thomas R, Chacko AG.
  A novel nasoseptal flap harvesting technique in revision expanded endoscopic transsphenoidal approaches.
  Neurol India. 2017 Jan-Feb;65(1):129-33.
• Thomas R, Girishan S, Chacko AG.
  Endoscopic transmaxillary transposition of temporalis flap for recurrent cerebrospinal fluid leak closure.
  J Neurol Surg B Skull Base. 2016 Dec;77(6):445-8.
• Gupta N, Chacko G, Chacko AG, Rajshekhar V, Jayprakash M.
  Fluorescence in situ hybridization for chromosome 14q deletion in subsets of meningioma segregated by MIB-1 labelling index.
  Neurol India. 2016 Nov-Dec;64(6):1256-63.
• Thomas R, Chacko AG.
  Principles in skull base reconstruction following expanded endoscopic approaches.
  J Neurol Surg B Skull Base. 2016 Aug;77(4):358-63.
• Velayutham P, Rajshekhar V, Chacko AG, Krothapalli Babu S.
  Influence of tumor location and other variables on predictive value of intraoperative myogenic motor-evoked potentials in spinal cord tumor surgery.
  World Neurosurg. 2016 Aug;92:264-72.
• Turel MK, D'Souza WP, Chacko AG, Rajshekhar V.
  Giant vestibular schwannomas: surgical nuances influencing outcome in 179 patients.
  Neurol India. 2016 May-Jun;64(3):478-84.
• Sivaraju L, Mani S, Prabhu K, Daniel RT, Chacko AG.
  Three-dimensional computed tomography angiographic study of the vertebral artery in patients with congenital craniovertebral junction anomalies.
  Eur Spine J. 2017 Apr;26(4):1028-38.
• Abraham AP, Srinivas SB, Murthy M, Babu KS, Chacko AG.
  Surface electromyography activity in the upper limbs of patients following surgery for compressive cervical myelopathy.
  Neurol India. 2015 Nov-Dec;63(6):903-10.
• Sarkar S, Rajaratnam S, Chacko G, Mani S, Hesargatta AS, Chacko AG.
  Pure endoscopic transsphenoidal surgery for functional pituitary adenomas: outcomes with Cushing's disease.
  Acta Neurochir (Wien). 2016 Jan;158(1):77-86; discussion 86.
• Pratheesh R, Swallow DM, Joseph M, Natesan D, Rajaratnam S, Jacob KS, Chacko AG.
  Evaluation of a protocol-based treatment strategy for postoperative diabetes insipidus in craniopharyngioma.
  Neurol India. 2015 Sep-Oct;63(5):712-7.
• George R, Jeba J, Ramkumar G, Chacko AG, Tharyan P.
  Interventions for the treatment of metastatic extradural spinal cord compression in adults.
  Cochrane Database Syst Rev. 2015 Sep 4;2015(9):CD006716.
• Sarkar S, Chacko AG, Chacko G.
  Clinicopathological correlates of extrasellar growth patterns in pituitary adenomas.
  J Clin Neurosci. 2015 Jul;22(7):1173-7.
• Turel MK, Chacko AG.
  Postoperative arachnoid cyst causing visual deterioration following transsphenoidal excision of a pituitary adenoma.
  Neurol India. 2015 Mar-Apr;63(2):274-6.
• Patel B, Chacko G, Nair S, Anandan J, Chacko AG, Rajshekhar V, Turel M.
  Clinicopathological correlates of primary central nervous system lymphoma: experience from a tertiary care center in South India.
  Neurol India. 2015 Jan-Feb;63(1):77-82.
• Thomas THM, Devadhas D, Heck DK, Chacko AG, Rebekah G, Oommen R, Samuel EJ.
  Adaptive threshold segmentation of pituitary adenomas from FDG PET images for radiosurgery.
  J Appl Clin Med Phys. 2014 Nov 8;15(6):4952.
• Sarkar S, Rajaratnam S, Chacko G, Chacko AG.
  Endocrinological outcomes following endoscopic and microscopic transsphenoidal surgery in 113 patients with acromegaly.
  Clin Neurol Neurosurg. 2014 Nov;126:190-5.
• Sarkar S, Chacko AG, Chacko G.
  An analysis of granulation patterns, MIB-1 proliferation indices and p53 expression in 101 patients with acromegaly.
  Acta Neurochir (Wien). 2014 Dec;156(12):2221-30; discussion 2230.
• Nayak R, Shetty S, Kapoor N, Chacko AG, Paul TV.
  Visual vignette.
  Endocr Pract. 2014 Nov;20(11):1237.
• Sarkar S, Turel MK, Jacob KS, Chacko AG.
  The evolution of T2-weighted intramedullary signal changes following ventral decompressive surgery for cervical spondylotic myelopathy: clinical article.
  J Neurosurg Spine. 2014 Oct;21(4):538-46.
• Turel MK, Babu KS, Singh G, Chacko AG.
  The utility of facial nerve amplitude and latency ratios in predicting postoperative facial nerve function after vestibular schwannoma surgery.
  Neurol India. 2014 Mar-Apr;62(2):178-82.
• Sarkar S, Jacob KS, Pratheesh R, Chacko AG.
  Transsphenoidal surgery for acromegaly: predicting remission with early postoperative growth hormone assays.
  Acta Neurochir (Wien). 2014 Jul;156(7):1379-87; discussion 1387.
• Nair BR, Prabhu K, Chacko G, Chacko AG.
  Calcified cavernous malformation of the lower cranial nerves.
  Neurol India. 2014 Jan-Feb;62(1):104-5.
• Chacko AG, Natarajan MS, Prabhu K, Chacko G.
  Schwannoma of supraorbital nerve presenting as a subfrontal tumor.
  Neurol India. 2014 Jan-Feb;62(1):96-8.
• Singh VY, Chacko G, Chacko AG, Rajshekhar V.
  Fluorescence in situ hybridization for 1p, 19q status in a cohort of glial neoplasms.
  Neurol India. 2014 Jan-Feb;62(1):32-6.
• Turel MK, Chacko G, Chacko AG.
  Interhemispheric neurenteric cyst.
  Neurol India. 2013 Sep-Oct;61(5):563-5.
• Ahmed M, Keshava SN, Mammen S, Chacko AG, Prabhu K.
  An unusual case of reversible cerebral vasoconstriction syndrome presenting with a large intraparenchymal haematoma.
  Neurol India. 2013 Sep-Oct;61(5):535-7.
• Messerer M, Dubourg J, Raverot G, Bervini D, Berhouma M, George I, Chacko AG, Perrin G, Levivier M, Daniel RT, Trouillas J, Jouanneau E.
  Non-functioning pituitary macro-incidentalomas benefit from early surgery before becoming symptomatic.
  Clin Neurol Neurosurg. 2013 Dec;115(12):2514-20.
• Sarkar S, Rajaratnam S, Backianathan S, Chacko G, Chacko AG.
  Radiation-induced opticochiasmatic glioblastoma multiforme following conventional radiotherapy for Cushing's disease.
  Br J Neurosurg. 2014 Aug;28(4):510-2.
• Chacko AG, Joseph M, Turel MK, Prabhu K, Daniel RT, Jacob KS.
  Answer to the letter to the editor of J.M. Duart Clemente et al. concerning multilevel oblique corpectomy for cervical spondylotic myelopathy preserves segmental motion.
  Eur Spine J. 2012;21(7):1360-7. Eur Spine J. 2013 Sep;22(9):2122.
• Chacko AG, Turel MK, Sarkar S, Prabhu K, Daniel RT.
  Clinical and radiological outcomes in 153 patients undergoing oblique corpectomy for cervical spondylotic myelopathy.
  Br J Neurosurg. 2014 Jan;28(1):49-55.
• Asirvatham JR, Pai R, Chacko G, Nehru AG, John J, Chacko AG, Muliyil J.
  Molecular characteristics of meningiomas in a cohort of Indian patients: loss of heterozygosity analysis of chromosomes 22, 17, 14 and 10.
  Neurol India. 2013 Mar-Apr;61(2):138-43.
• Aaron S, Alexander M, Moorthy RK, Mani S, Mathew V, Patil AK, Sivadasan A, Nair S, Joseph M, Thomas M, Prabhu K, Joseph BV, Rajshekhar V, Chacko AG.
  Decompressive craniectomy in cerebral venous thrombosis: a single centre experience.
  J Neurol Neurosurg Psychiatry. 2013 Sep;84(9):995-1000.
• Turel MK, Sarkar S, Prabhu K, Daniel RT, Jacob KS, Chacko AG.
  Reduction in range of cervical motion on serial long-term follow-up in patients undergoing oblique corpectomy for cervical spondylotic myelopathy.
  Eur Spine J. 2013 Jul;22(7):1509-16.
• Pratheesh R, Swallow DM, Rajaratnam S, Jacob KS, Chacko G, Joseph M, Chacko AG.
  Incidence, predictors and early post-operative course of diabetes insipidus in paediatric craniopharygioma: a comparison with adults.
  Childs Nerv Syst. 2013 Jun;29(6):941-9.
• Chacko AG, Thomas SG, Babu KS, Daniel RT, Chacko G, Prabhu K, Cherian V, Korula G.
  Awake craniotomy and electrophysiological mapping for eloquent area tumours.
  Clin Neurol Neurosurg. 2013 Mar;115(3):329-34.
• Nehru GA, Pai R, Samuel P, Chacko AG, Chacko G.
  Status of O-methylguanine-DNA methyltransferase [MGMT] gene promoter methylation among patients with glioblastomas from India.
  Neurol India. 2012 Sep-Oct;60(5):481-6.
• Pratheesh R, Rajaratnam S, Prabhu K, Mani SE, Chacko G, Chacko AG.
  The current role of transcranial surgery in the management of pituitary adenomas.
  Pituitary. 2013 Dec;16(4):419-34.
• Thomas SG, Chacko AG, Thomas MM, Babu KS, Russell PS, Daniel RT.
  Outcomes of disconnective surgery in intractable pediatric hemispheric and subhemispheric epilepsy.
  Int J Pediatr. 2012;2012:527891.
• Mammen S, Keshava SN, Danda S, Raju R, Chacko AG.
  Endovascular management of carotid-cavernous fistula in Ehlers-Danlos syndrome Type IV.
  Neurol India. 2012 Jan-Feb;60(1):119-21.
• Chacko AG, Joseph M, Turel MK, Prabhu K, Daniel RT, Jacob KS.
  Multilevel oblique corpectomy for cervical spondylotic myelopathy preserves segmental motion.
  Eur Spine J. 2012 Jul;21(7):1360-7.
• Turel MK, Asha HS, Rajaratnam S, Chacko G, Chacko AG.
  Thyroid stimulating hormone microadenoma as a rare cause of thyrotoxicosis amenable to surgical cure.
  J Clin Neurosci. 2012 Jun;19(6):887-8.
• Korula PJ, Thomas SG, Sen N, Chacko AG.
  Transient cortical blindness following a Hangman's fracture: a case report and review of literature.
  Br J Neurosurg. 2012 Apr;26(2):272-4.
• Moorthy RK, Sam GA, Kumar SV, Chacko G, Mathews V, Chacko AG, Srivastava A, Rajshekhar V.
  Intralesional mesenchymal stromal cell transplant in a rodent model of cortical cryoinjury.
  Neurol India. 2011 Jul-Aug;59(4):573-8.
• Natarajan MS, Prabhu K, Chacko G, Rajaratnam S, Chacko AG.
  Endoscopic transsphenoidal excision of a GH-PRL-secreting pituitary macroadenoma in a patient with McCune-Albright syndrome.
  Br J Neurosurg. 2012 Feb;26(1):104-6.
• Turel MK, Chacko AG.
  Delayed resolution of extensive T2-weighted intramedullary signal changes after oblique corpectomy for cervical spondylotic myelopathy.
  Br J Neurosurg. 2011 Dec;25(6):772-4.
• Asirvatham JR, Deepti AN, Chyne R, Prasad MS, Chacko AG, Rajshekhar V, Chacko G.
  Pediatric tumors of the central nervous system: a retrospective study of 1,043 cases from a tertiary care center in South India.
  Childs Nerv Syst. 2011 Aug;27(8):1257-63.
• Natarajan MS, Prabhu K, Braganza A, Chacko AG.
  Posttraumatic subgaleal and orbital hematoma due to factor XIII deficiency.
  J Neurosurg Pediatr. 2011 Feb;7(2):213-7.
• Prabhu K, Ramamani, Nair S, Chacko AG.
  Acute submandibular sialadenitis as a cause of unilateral neck swelling after posterior fossa surgery in sitting position.
  Neurol India. 2010 Nov-Dec;58(6):963-4.
• Prabhu K, Kurien M, Chacko AG.
  Endoscopic transsphenoidal approach to petrous apex cholesterol granulomas.
  Br J Neurosurg. 2010 Dec;24(6):688-91.
• Prabhu K, Kumbhar KR, Chacko AG.
  Middle fossa extradural repair of sphenoidal encephaloceles.
  Br J Neurosurg. 2011 Feb;25(1):124-6.
• Moses V, Daniel RT, Chacko AG.
  The value of intraoperative ultrasound in oblique corpectomy for cervical spondylotic myelopathy and ossified posterior longitudinal ligament.
  Br J Neurosurg. 2010 Oct;24(5):518-25.
• Chacko G, Chacko AG, Kovacs K, Scheithauer BW, Mani S, Muliyil JP, Seshadri MS.
  The clinical significance of MIB-1 labeling index in pituitary adenomas.
  Pituitary. 2010 Dec;13(4):337-44.
• Thomas SG, Daniel RT, Chacko AG, Thomas M, Russell PS.
  Cognitive changes following surgery in intractable hemispheric and sub- hemispheric pediatric epilepsy.
  Childs Nerv Syst. 2010 Aug;26(8):1067-73.
• Prabhu K, Daniel RT, Chacko G, Chacko AG.
  Optic nerve haemangioblastoma mimicking a planum sphenoidale meningioma.
  Br J Neurosurg. 2009;23(5):561-3.
• Prabhu K, Daniel RT, Mani S, Chacko AG.
  Dermoid tumor with diastematobulbia.
  Surg Neurol. 2009 Dec;72(6):717-21; discussion 721.
• Sujit Kumar GS, Chacko G, Chacko AG, Haran RP.
  Multiple extracranial metastases from intradiploic meningioma.
  Neurol India. 2009 Jan-Feb;57(1):96-7.
• Chacko G, Chacko AG, Lombardero M, Mani S, Seshadri MS, Kovacs K, Scheithauer BW.
  Clinicopathologic correlates of giant pituitary adenomas.
  J Clin Neurosci. 2009 May;16(5):660-5.
• George R, Jeba J, Ramkumar G, Chacko AG, Leng M, Tharyan P.
  Interventions for the treatment of metastatic extradural spinal cord compression in adults.
  Cochrane Database Syst Rev. 2008 Oct 8;(4):CD006716.
• Bahuleyan B, Daniel RT, Chacko G, Chacko AG.
  Epidermoid cysts of the velum interpositum.
  J Clin Neurosci. 2008 Oct;15(10):1159-61.
• Kumar GS, Raj PM, Chacko G, Lalitha MK, Chacko AG, Rajshekhar V.
  Cranial melioidosis presenting as a mass lesion or osteomyelitis.
  J Neurosurg. 2008 Feb;108(2):243-7.
• Bhaskar IP, Chacko AG, Daniel RT.
  Brainstem compression from a trigeminal schwannoma presenting with pathological crying.
  J Clin Neurosci. 2008 Mar;15(3):322-4.
• Chacko AG, Daniel RT.
  Multilevel cervical oblique corpectomy in the treatment of ossified posterior longitudinal ligament in the presence of ossified anterior longitudinal ligament.
  Spine (Phila Pa 1976). 2007 Sep 15;32(20):E575-80.
• Bahuleyan B, Rao A, Chacko AG, Daniel RT.
  Supracerebellar arachnoid cyst - A rare cause of acquired Chiari I malformation.
  J Clin Neurosci. 2007 Sep;14(9):895-8.
• Venkatesan T, Thomas N, Ponniah M, Khan D, Chacko AG, Rajshekhar V.
  Oral triiodothyronine in the perioperative management of central hypothyroidism.
  Singapore Med J. 2007 Jun;48(6):555-8.
• Chacko AG, Daniel RT, Chacko G, Babu KS.
  Pial and arachnoid welding for restoration of normal cord anatomy after excision of intramedullary spinal cord tumors.
  J Clin Neurosci. 2007 Aug;14(8):764-9.
• Chacko G, Chacko AG, Dunham CP, Judkins AR, Biegel JA, Perry A.
  Atypical teratoid/rhabdoid tumor arising in the setting of a pleomorphic xanthoastrocytoma.
  J Neurooncol. 2007 Sep;84(2):217-22.
• Bahuleyan B, Raghuram L, Rajshekhar V, Chacko AG.
  To assess the ability of MRI to predict consistency of pituitary macroadenomas.
  Br J Neurosurg. 2006 Oct;20(5):324-6.
• Surendrababu NR, Chacko G, Daniel RT, Chacko AG.
  Solitary fibrous tumor of the lateral ventricle: CT appearances and pathologic correlation with follow-up.
  AJNR Am J Neuroradiol. 2006 Nov-Dec;27(10):2135-6.
• Kumar GS, Poonnoose SI, Chacko AG, Rajshekhar V.
  Trigonal cavernous angiomas: report of three cases and review of literature.
  Surg Neurol. 2006 Apr;65(4):367-71; discussion 371.
• Chacko G, Chacko AG, Rajshekhar V, Muliyil JP.
  Intracranial hemangiopericytomas: correlation of topoisomerase IIalpha expression with biologic behavior.
  Surg Neurol. 2006 Jan;65(1):11-7.
• Singh AD, Chacko AG, Chacko G, Rajshekhar V.
  Plasma cell tumors of the skull.
  Surg Neurol. 2005 Nov;64(5):434-8; discussion 438-9.
• Shah KC, Chacko G, John S, Chacko AG.
  Spinal intramedullary metastasis from intracranial germinoma.
  Neurol India. 2005 Sep;53(3):374-5.
• Joseph V, Chacko AG.
  Suprabrow minicraniotomy for suprasellar tumours.
  Br J Neurosurg. 2005 Feb;19(1):33-7.
• Prabhu K, Babu KS, Samuel S, Chacko AG.
  Rapid opening and closing of the hand as a measure of early neurologic recovery in the upper extremity after surgery for cervical spondylotic myelopathy.
  Arch Phys Med Rehabil. 2005 Jan;86(1):105-8.
• Kumar GS, Chacko AG, Rajshekhar V.
  Unusual presentation of the "syndrome of the trephined".
  Neurol India. 2004 Dec;52(4):504-5.
• Chacko AG, Moorthy RK, Chandy MJ.
  The transpedicular approach in the management of thoracic spine tuberculosis: a short-term follow up study.
  Spine (Phila Pa 1976). 2004 Sep 1;29(17):E363-7.
• Shah KC, Chacko AG.
  Extensive vertebral haemangioma with cord compression in two patients: review of the literature.
  Br J Neurosurg. 2004 Jun;18(3):250-2.
• Sujit Kumar GS, Chacko G, Chacko AG, Rajshekhar V.
  Alveolar soft-part sarcoma presenting with multiple intracranial metastases.
  Neurol India. 2004 Jun;52(2):257-8.
• Kumar GS, Chacko AG, Chacko M.
  Superior sagittal sinus and torcula thrombosis in minor head injury.
  Neurol India. 2004 Mar;52(1):123-4.
• Shankar A, Chacko G, Chacko AG.
  Intratumoral abscess: an unusual complication of ventriculoperitoneal shunt infection.
  Childs Nerv Syst. 2004 Mar;20(3):204-6.
• Chacko AG, Chacko G, Seshadri MS, Chandy MJ.
  The 'capsule' of pituitary macroadenomas represents normal pituitary gland: a histopathological study.
  Br J Neurosurg. 2003 Jun;17(3):213-8.
• Chacko AG, Kumar NK, Chacko G, Athyal R, Rajshekhar V.
  Intraoperative ultrasound in determining the extent of resection of parenchymal brain tumours--a comparative study with computed tomography and histopathology.
  Acta Neurochir (Wien). 2003 Sep;145(9):743-8; discussion 748.
• Abraham RG, Kumar NK, Chacko AG.
  A minimally invasive approach to deep-seated brain lesions using balloon dilatation and ultrasound guidance.
  Minim Invasive Neurosurg. 2003 Jun;46(3):138-41.
• Joseph VB, Raghuram L, Korah IP, Chacko AG.
  MR ventriculography for the study of CSF flow.
  AJNR Am J Neuroradiol. 2003 Mar;24(3):373-81.
• Chacko AG, Chacko G, Seshadri MS, Chandy MJ.
  Hemorrhagic necrosis of pituitary adenomas.
  Neurol India. 2002 Dec;50(4):490-3.
• Chacko AG, Chandy MJ.
  Transsphenoidal line of vision on MRI for pituitary tumor surgery.
  Neurol India. 2002 Jun;50(2):136-40.
• Samson SK, Kulkarni V, Chacko AG.
  An unusual presentation of calvarial tuberculosis.
  Postgrad Med J. 2002 Mar;78(917):184, 188-9.
• Sharma P, Sharma A, Chacko AG.
  Syringomyelia in spontaneous intracranial hypotension. Case report.
  J Neurosurg. 2001 Nov;95(5):905-8.
• Chacko AG, Chandy MJ.
  Favorable outcome after radical excision of a 'Holocord' astrocytoma.
  Clin Neurol Neurosurg. 2000 Dec;102(4):240-2.
• Valadka AB, Gopinath SP, Mizutani Y, Chacko AG, Robertson CS.
  Similarities between civilian gunshot wounds to the head and nongunshot head injuries.
  J Trauma. 2000 Feb;48(2):296-302.
• Thomas N, Simon R, Chacko G, Chacko AG, Chandy MJ, Seshadri MS.
  Regression of acromegaly following pituitary apoplexy.
  Neurol India. 1999 Jun;47(2):161-2.
• Chacko AG, Chandy MJ.
  Complications of transsphenoidal pituitary surgery.
  Neurol India. 1997 Oct-Dec;45(4):224-30.
• Chacko AG, Chandy MJ.
  Diagnostic and staged stereotactic aspiration of multiple bihemispheric pyogenic brain abscesses.
  Surg Neurol. 1997 Sep;48(3):278-82; discussion 282-3.
• Chacko AG, Babu KS, Chandy MJ.
  Value of visual evoked potential monitoring during trans-sphenoidal pituitary surgery.
  Br J Neurosurg. 1996 Jun;10(3):275-8.
• Chacko AG, Rajshekhar V, Chacko G.
  Testicular embryonal cell carcinoma metastasizing to the site of a previously excised cerebellar haemangioblastoma.
  Br J Neurosurg. 1996 Apr;10(2):197-200.
• Chacko AG, Chacko G, Chandy MJ.
  Removal of sphenoidal aspergilloma enroute to sellar macroprolactinoma.
  Neurol India. 1995 Jul-Sep;43(3):171-2.
• Chacko AG, Chandy MJ.
  Incidental pituitary macroadenomas.
  Br J Neurosurg. 1992;6(3):233-6.