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1.
Indian Pediatr ; 60(6): 463-466, 2023 Jun 15.
Article in English | MEDLINE | ID: mdl-37211886

ABSTRACT

OBJECTIVE: To describe the characteristics of gonadotropin-dependent precocious puberty (GDPP) in Indian children. METHODS: Clinical profiles of GDPP (n=78, 61 females) and premature thelarche (n=12) from a single center in Western India were retrospectively studied. RESULTS: Pubertal onset was earlier in boys than girls (29 vs 75 months, respec-tively; P=0.008). The basal luteinizing hormone (LH) was ≥0.3 mIU/mL, except 18% of GDPP girls. At 60 minutes after GnRHa-stimulation, all patients (except one girl) had LH ≥5 mIU/mL. The GnRHa-stimulated LH/FSH ratio was ≥0.34 at 60 minutes in girls with GDPP unlike premature thelarche. Only one girl had an allergic reaction to long-acting GnRH agonist. Among GnRH agonist-treated girls (n=24), the predicted final adult height was -1.67±1.5 SDS, whereas the attained final height was -0.25±1.48 SDS. CONCLUSION: We establish the safety and efficacy of long acting GnRH agonist therapy in Indian children with GDPP. The 60-minute stimulated serum LH/FSH of ≥0.34 differentiated GDPP from premature thelarche.


Subject(s)
Puberty, Precocious , Child , Female , Male , Adult , Humans , Puberty, Precocious/drug therapy , Gonadotropin-Releasing Hormone/therapeutic use , Follicle Stimulating Hormone/therapeutic use , Retrospective Studies , Luteinizing Hormone/therapeutic use , Puberty
2.
Pituitary ; 23(6): 701-715, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32894409

ABSTRACT

CONTEXT: Regional variation in prevalence of genetic mutations in growth hormone deficiency (GHD) is known. AIM: Study phenotype and prevalence of mutations in GH1, GHRHR, POU1F1, PROP1 genes in GHD cohort. METHODS: One hundred and two patients {Isolated GHD (IGHD): 79; combined pituitary hormone deficiency (CPHD): 23} with orthotopic posterior pituitary were included. Auxologic, hormonal and radiological details were studied. All four genes were analysed in IGHD patients. POU1F1 and PROP1 were studied in CPHD patients. RESULTS: Of 102, 19.6% were familial cases. Height SDS, mean (SD) was - 5.14 (1.63). Peak GH, median (range) was 0.47 ng/ml (0-6.59), 72.5% patients had anterior pituitary hypoplasia (APH). Twenty mutations (novel: 11) were found in 43.1% patients (n = 44, IGHD-36, CPHD-8). GHRHR mutations (n = 32, p.Glu72* = 24) were more common than GH1 mutations (n = 4) in IGHD cohort. POU1F1 mutations (n = 6) were more common than PROP1 mutations (n = 2) in CPHD cohort. With few exceptions, this prevalence pattern is contrary to most studies in world-literature. No patients with peak GH > 4 ng/ml had mutations, signifying it as negative predictor. While many parameters were significant on univariate analysis, only positive family history and lower median peak GH levels were significant predictors of mutations on multivariate analysis in IGHD patients. CONCLUSION: At variance with world literature, we found reverse predominance of GHRHR over GH1 mutations, POU1F1 over PROP1 mutations and predominance of GHRHR p.Glu72* mutations thus re-affirming the regional diversity in GHD genetics. We report positive and negative predictors of mutations in GHD.


Subject(s)
Dwarfism, Pituitary/genetics , Mutation/genetics , Adult , Asian People , Biomarkers , Female , Humans , Insulin-Like Growth Factor I/metabolism , Machine Learning , Magnetic Resonance Imaging , Male , Middle Aged
4.
Endocr Connect ; 4(4): 242-8, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26420669

ABSTRACT

Variable prevalence of subclinical Cushing's syndrome (SCS) has been reported in patients with type 2 diabetes mellitus (T2DM), making the need for screening in this population uncertain. It is unknown if this variability is solely due to study-related methodological differences or a reflection of true differences in ethnic predisposition. The objective of this study is to explore the prevalence of SCS in Asian Indian patients with T2DM. In this prospective single center study conducted in a tertiary care referral center, 993 T2DM outpatients without any discriminatory clinical features (easy bruising, facial plethora, proximal muscle weakness, and/or striae) of hypercortisolism underwent an overnight 1 mg dexamethasone suppression test (ODST). ODST serum cortisol ≥1.8 µg/dl was considered positive, and those with positive results were subjected to 48 h, 2 mg/day low dose DST (LDDST). A stepwise evaluation for endogenous hypercortisolism was planned for patients with LDDST serum cortisol ≥1.8 µg/dl. Patients with positive ODST and negative LDDST were followed up clinically and re-evaluated a year later for the development of clinically evident Cushing's syndrome (CS). In this largest single center study reported to date, we found 37 out of 993 (3.72%) patients had ODST serum cortisol ≥1.8 µg/dl. None of them had LDDST cortisol ≥1.8 µg/dl, nor did they develop clinically evident CS over a follow-up period of 1 year. Specificity of ODST for screening of CS was 96.3% in our cohort. None of the T2DM outpatients in our cohort had SCS, hence cautioning against routine biochemical screening for SCS in this cohort. We suggest screening be based on clinical suspicion only.

5.
Endocr Pract ; 21(9): 1010-6, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26121439

ABSTRACT

OBJECTIVE: To describe a case series of HRPT2- (CDC73) related hereditary primary hyperparathyroidism (PHPT) from western India. METHODS: We present a case series of 4 families (7 patients) with PHPT caused by CDC73 gene mutations. RESULTS: The mean age of presentation of the 4 index cases was 27.25 ± 9.8 years. Two family members were identified through biochemical screening (Cases 1b and 2b), while 1 mutation-positive family member did not manifest any features of PHPT or hyperparathyroidism jaw tumor syndrome (HPT-JT) syndrome (Case 2c). Biochemistry showed increased serum calcium (mean: 13.21 ± 1.24 mg/dL), low serum phosphorus (mean: 1.78 ± 0.44 mg/dL), and high parathyroid hormone (PTH, mean: 936 ± 586.9 pg/mL). All patients had a uniglandular presentation and underwent single adenoma excision initially except Cases 2a and 2b, who underwent subtotal parathyroidectomy at baseline. Two cases experienced PHPT recurrence (Cases 3 and 4), while 1 remained uncured due to parathyroid carcinoma (Case 1a). Other associated syndromic features like ossifying jaw fibromas were present in 2 patients, renal cysts in 3 patients, and uterine involvement in 2 patients. Two families had novel germline CDC73 mutations (Families 1 and 3), while the other 2 had reported mutations. Family 2 had familial isolated PHPT without any other features of HPT-JT syndrome. CONCLUSION: Our findings reaffirm the need for genetic analysis of patients with PHPT, especially those with younger age of disease onset; recurrent disease; and associated features like polycystic kidneys, endometrial involvement, ossifying jaw tumors, or parathyroid carcinoma.


Subject(s)
Hyperparathyroidism/genetics , Tumor Suppressor Proteins/genetics , Adolescent , Adult , Calcium/blood , DNA Mutational Analysis , Female , Humans , Hyperparathyroidism/blood , Hyperparathyroidism/surgery , India , Male , Middle Aged , Mutation , Parathyroid Hormone/blood , Parathyroidectomy , Pedigree , Phosphorus/blood
6.
Endocr Pract ; 21(7): 770-6, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25786559

ABSTRACT

OBJECTIVE: Ovotesticular disorder of sex development (OT DSD) is a rare disorder of sex development characterized by the presence in the same individual of both histologically proven testis and ovary. There are scant data from the Indian subcontinent regarding this disorder. The aim of this study was to describe the clinical, biochemical, imaging, cytogenetic, surgical, and histopathologic findings and outcomes of patients with OT DSD from Western India. METHODS: The records of patients referred to our center for disorders of sex development between 2005 and 2013 were reviewed, and 7 patients were found to have histologically proven OT DSD. RESULTS: The median age at presentation was 8 years (range, 2 months to 25 years). Clinical presentation varied from genital ambiguity and inguinal swelling at birth to gynecomastia and cyclical hematuria after puberty. Karyotype was 46, XX in 6 patients and 46, XY in 1 patient. All patients underwent pelvic ultrasonography, laparoscopy, and surgery for removal of gonads not congruous with the chosen sex of rearing. Gender assignment for all the patients was done by the parents at birth, which was mainly influenced by the external genitalia and sociocultural influences, with 5 out of the 7 patients being reared as males. There was no evidence of gonadal tumors in our study. CONCLUSION: OT DSD should be considered as one of the differential diagnoses in cases of ambiguous genitalia with nonpalpable or asymmetrical gonads, pubertal gynecomastia, and cyclical hematuria, irrespective of the karyotype or internal genitalia.


Subject(s)
Ovotesticular Disorders of Sex Development/diagnosis , Adolescent , Adult , Child , Child, Preschool , Female , Humans , India/epidemiology , Infant , Male , Ovotesticular Disorders of Sex Development/epidemiology , Ovotesticular Disorders of Sex Development/genetics , Ovotesticular Disorders of Sex Development/surgery , Young Adult
7.
Endocr Pract ; 21(2): 158-64, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25297662

ABSTRACT

OBJECTIVE: Our study aimed to establish a local reference range for late-night salivary cortisol (LNSC) using enzyme immunoassay (EIA) and to study the intra-individual reproducibility of LNSC. METHODS: Prospective study involving 30 healthy subjects (HS) with body mass index (BMI) <25 kg/m2, 37 obese/overweight subjects (OS) with BMI >25 kg/m2 and 28 patients with Cushing disease (CD). Salivary sampling was performed on 2 consecutive nights and assayed by EIA. The reference range was established using LNSC values of HS, and receiver operating characteristic (ROC) curves were used to determine diagnostic cutoffs. RESULTS: The mean LNSC level of CD was significantly higher than HS and OS (CD: 16.96 ± 9.11 nmol/L, HS: 1.30 ± 0.95 nmol/L, and OS 1.21 ± 0.78 nmol/L). A cutoff of 2.92 nmol/L differentiated CD from HS with 100% sensitivity and 96.7 % specificity, and a cutoff of 5.04 nmol/L yielded a specificity of 100% with a sensitivity of 96.4% to distinguish CD from OS. There was more intra-individual variability in HS (55%) than in CD (49%) and OS (22%). There was no difference in the sensitivity and specificity derived from the ROCs using day 1 values or the higher of the 2 LNSCs. CONCLUSIONS: In our cohort, we found that LNSC assayed by EIA showed good sensitivity and specificity to screen patients suspected to have CD. Although intra-individual variability was significant, it did not hamper the diagnostic performance of the test.


Subject(s)
Hydrocortisone/analysis , Pituitary ACTH Hypersecretion/diagnosis , Saliva/chemistry , Adult , Female , Humans , Immunoenzyme Techniques , Male , Prospective Studies , Reproducibility of Results
8.
Pituitary ; 18(1): 16-22, 2015 Feb.
Article in English | MEDLINE | ID: mdl-24375060

ABSTRACT

BACKGROUND: Autoimmune hypophysitis (AH) is a rare autoimmune inflammatory disorder of pituitary gland. OBJECTIVE: To analyse clinical, hormonal, radiological features and management outcomes of AH. DESIGN: Retrospective analysis of patients with primary hypophysitis (where secondary causes of hypophysitis were ruled out) was carried out from 2006 to 2012. AH emerged as the most plausible aetiology and the diagnosis of exclusion. RESULTS: Twenty-four patients with AH (21 females and 3 males) were evaluated. They presented with symptoms of expanding sellar mass (83.3%), symptoms of anterior pituitary hormone deficiencies (58.3%), and diabetes insipidus (16.7%). The anterior pituitary hormonal axes affected were cortisol (75%), thyroid (58.33%) and gonadotropin (50%). All had sellar mass on magnetic resonance imaging, which was symmetrical (91.7%) and homogenously enhancing (91.7%). Stalk thickening, suprasellar extension, loss of posterior pituitary hyperintensity and parasellar T2 dark sign were seen in 87.5, 87.5, 71.5, and 50% respectively. In addition to hormone replacement, five (20.83%) patients underwent trans-sphenoidal surgery, fifteen (62.5%) were watchfully monitored, while four cases (16.67%) received steroid pulse therapy. On follow up imaging, the sellar mass regressed in all, while, stalk thickening was persistent in 13/19 (68.4%) non-operated patients at median follow up of 1 year. Pituitary hormone axis recovery was seen in 10 (41.67%) and was seen in cortisol 10/18 (55.5%) followed by gonadotropin 5/12 (41.67%) axis. CONCLUSION: Characteristic radiology helps in diagnosis of AH even without tissue diagnosis. Non-operative treatment is the preferred treatment modality. Steroid pulse therapy potentially improves pituitary axis recovery.


Subject(s)
Autoimmune Diseases/metabolism , Pituitary Diseases/metabolism , Autoimmune Diseases/therapy , Female , Gonadotropins/metabolism , Humans , Hydrocortisone/metabolism , Magnetic Resonance Imaging , Male , Pituitary Diseases/therapy , Pituitary Gland/pathology , Retrospective Studies
10.
Growth Horm IGF Res ; 24(6): 227-32, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25153028

ABSTRACT

CONTEXT: Cohort specific mutations in the growth hormone (GH1) and growth hormone-releasing hormone receptor (GHRHR) genes have been reported worldwide in isolated growth hormone deficiency (IGHD) patients. However, limited data is available on ethnically diverse Indian IGHD patients. OBJECTIVE: The aim of the study was to find GH1 and GHRHR gene mutations in Indian IGHD patients from two unrelated non-consanguineous families. DESIGN: The 5' and 3' untranslated regions (UTRs) and coding regions with splice sites of the GH1 and GHRHR genes were sequenced for all patients (n=6). Family members and 20 controls were evaluated for the sequence variants identified in the index patients. Online bioinformatics tools were used to confirm mutations and their pathogenicity. RESULTS: GHRHR gene mutations were observed in all patients. Interestingly, a novel indel g.30999250_31006943delinsAGAGATCCA was observed in both the unrelated families. Three patients were homozygous for the novel indel, two were homozygous for the previously reported p.E72X mutation and one was compound heterozygous with both the mutations (indel and p.E72X) in the GHRHR gene. The novel indel has resulted in the loss of 5' regulatory region and exon 1 of the GHRHR gene impairing the GHRHR expression. All the normal family members were heterozygous either for the indel or p.E72X mutation. None of the patients had GH1 gene mutations. CONCLUSIONS: We describe a novel gross indel in the GHRHR gene resulting in the loss of 5' regulatory region and GHRHR exon 1 in four IGHD IB patients from two unrelated non-consanguineous Indian families.


Subject(s)
Dwarfism, Pituitary/genetics , Human Growth Hormone/deficiency , INDEL Mutation/genetics , Receptors, Neuropeptide/genetics , Receptors, Pituitary Hormone-Regulating Hormone/genetics , Adult , Base Sequence , Child , Child, Preschool , Dwarfism, Pituitary/epidemiology , Exons/genetics , Female , Heterozygote , Humans , India/epidemiology , Male , Molecular Sequence Data , Pedigree
11.
J Clin Endocrinol Metab ; 99(9): 3049-54, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24960541

ABSTRACT

CONTEXT: Tumor-induced osteomalacia is curable if the tumors can be totally excised. However, when the tumors are present in locations that make surgery disproportionately risky, the need for less invasive strategies like radiofrequency ablation (RFA) is realized. PATIENTS AND METHODS: We describe three patients with suspected tumor-induced osteomalacia who were treated in our department between 2006 and 2013 with tumors in surgically difficult locations and were subjected to single or multiple sessions of RFA. The response was documented in terms of symptomatic improvement, phosphorus normalization, and follow-up (99m)Technitium-labelled hydrazinonicotinyl-Tyr3-octreotide ((99m)Tc HYNIC TOC) scan. RESULTS: Two of the three individuals, patient A (with a 1.5 × 1.2-cm lesion in the head of the right femur) and patient B (with a 1.3 × 1.2-cm lesion on the endosteal surface of the shaft of the left femur), achieved complete remission with single sessions of RFA. Three months after the procedure, (99m)Tc HYNIC TOC scans revealed the absence of uptake at the previous sites, corroborating with the clinical improvement and phosphorus normalization. Patient C had a large 5.6 × 6.5-cm complex lesion in the lower end of the left femur with irregular margins, loculations, and bone grafts placed in previous surgery. He failed to achieve remission after multiple sessions of RFA due to the complex nature of the lesion, although the tumor burden was reduced significantly as documented on serial (99m)Tc HYNIC TOC scans. CONCLUSIONS: Although surgery remains the treatment of choice, RFA could be an effective, less invasive, and safe modality of treatment in judiciously selected patients.


Subject(s)
Catheter Ablation/methods , Femoral Neoplasms , Multimodal Imaging , Neoplasms, Connective Tissue , Osteomalacia , Paraneoplastic Syndromes , Adult , Biopsy , Female , Femoral Neoplasms/complications , Femoral Neoplasms/diagnosis , Femoral Neoplasms/surgery , Humans , Male , Middle Aged , Neoplasms, Connective Tissue/diagnosis , Neoplasms, Connective Tissue/etiology , Neoplasms, Connective Tissue/surgery , Osteomalacia/diagnosis , Osteomalacia/etiology , Osteomalacia/surgery , Paraneoplastic Syndromes/diagnosis , Paraneoplastic Syndromes/etiology , Paraneoplastic Syndromes/surgery , Tomography, Emission-Computed, Single-Photon , Tomography, X-Ray Computed
12.
Indian J Pediatr ; 81(11): 1225-7, 2014 Nov.
Article in English | MEDLINE | ID: mdl-24710710

ABSTRACT

A 9-y-old boy was referred to authors' institute for the management of insulin dependent diabetes mellitus. He was the product of third degree consanguineous marriage and was delivered by full term vaginal delivery with a birth weight of 2.75 kg. At 3 mo of age, he had presented with diabetic ketoacidosis and was on insulin regimen. Patient had delayed milestones and short stature. On follow up, child developed limb deformity and was diagnosed to have skeletal dysplasia. At the age of 9 y, patient was diagnosed to have cirrhosis of liver. Genetic analysis revealed homozygous EIF2AK3 nonsense mutation. It confirmed the diagnosis of Wolcott-Rallison syndrome. Patient's mother was heterozygous for the same mutation.


Subject(s)
Diabetes Mellitus, Type 1/diagnosis , Epiphyses/abnormalities , Osteochondrodysplasias/diagnosis , Child , Consanguinity , Diabetes Mellitus, Type 1/genetics , Diagnosis, Differential , Humans , India , Male , Osteochondrodysplasias/genetics
13.
Clin Endocrinol (Oxf) ; 81(3): 336-42, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24576201

ABSTRACT

OBJECTIVE: Cushing's macroadenoma as a cause of Cushing's disease is less common than microadenoma. The data on nature and behaviour of Cushing's macroadenoma are limited to a few case series. We studied clinical, biochemical and imaging characteristics of macroadenoma and their long-term treatment outcomes. METHOD: Retrospective analysis of 40 patients with macroadenoma managed at our centre from 1997 to 2013. RESULTS: Of 40 patients, there were 15 (37·5%) males and 25 (62·5%) females. Mean age at presentation was 26·7 ± 9·3 years. Visual field defects and/or cranial nerve palsies were found in 15 cases at presentation. Mean maximum tumour dimension was 20·83 ± 10·74 mm, and parasellar extension was seen in 25 (62·5%) patients. Plasma ACTH/maximum tumour dimension and 8 am serum cortisol/maximum tumour dimension decreased with increasing tumour size. Sixteen patients (40%) had remission (4: immediate, 12: delayed) after first transsphenoidal surgery (TSS). Larger tumour size and parasellar extension were predictors of failure to achieve remission. Four patients relapsed; noticeably all of them had delayed remission. Among the persistent and relapsed cases, second TSS was successful in two of eight patients, whereas 11 of 16 patients achieved remission after a mean duration of 12·14 ± 8·41 months postradiotherapy. CONCLUSION: Younger age at presentation and larger tumour size compared with previous series were distinctive features of our series. Large tumour size and parasellar extension were negative predictors of surgical remission. Delayed remission was seen in significant proportion of patients, but one-third later relapsed. Radiotherapy was an effective second-line treatment modality.


Subject(s)
Pituitary ACTH Hypersecretion/diagnosis , Pituitary ACTH Hypersecretion/metabolism , Adolescent , Adult , Child , Cushing Syndrome/diagnosis , Cushing Syndrome/metabolism , Female , Humans , Male , Middle Aged , Pituitary ACTH Hypersecretion/radiotherapy , Pituitary ACTH Hypersecretion/surgery , Retrospective Studies , Young Adult
14.
Clin Endocrinol (Oxf) ; 81(1): 31-7, 2014 Jul.
Article in English | MEDLINE | ID: mdl-24528172

ABSTRACT

CONTEXT: Localization of phosphatonin-producing mesenchymal tumours in patients with primary tumour-induced osteomalacia (pTIO) is challenging. Functional imaging plays an important role in the localization of these tumours. OBJECTIVE: We studied the relative performance of different functional imaging modalities ((18) F-FDG PET/CT, (99) Tc-HYNIC-TOC SPECT/CT and (68) Ga-DOTATATE PET/CT) in tumour localization in cases of pTIO. DESIGN AND METHODS: Retrospective chart evaluation of 16 patients with confirmed TIO treated from 2006 to 2013 was conducted in a tertiary care referral centre. RESULTS: Of 16, nine patients had pTIO. In these nine, the positivity rates of different functional imaging modalities were 50% for (18) F-FDG PET/CT (four of eight patients), 100% for (99) Tc-HYNIC-TOC SPECT/CT (six of six patients) and 100% for (68) Ga-DOTATATE PET/CT (seven of seven patients). Of nine patients, six were subjected to both the (99) Tc-HYNIC-TOC SPECT/CT and (68) Ga-DOTATATE PET/CT and all of them showed coregistration on the two scans. CONCLUSIONS: In patients with pTIO, the somatostatin receptor-based functional scans performed better than (18) F-FDG PET/CT in tumour localization. Amongst the somatostatin receptor-based scans, (99) Tc-HYNIC-TOC SPECT/CT and (68) Ga-DOTATATE PET/CT performed equally well for localization of tumours.


Subject(s)
Fluorodeoxyglucose F18 , Neoplasms, Connective Tissue/diagnosis , Neoplasms, Connective Tissue/metabolism , Positron-Emission Tomography/methods , Receptors, Somatostatin/metabolism , Adult , Aged , Female , Humans , Male , Middle Aged , Neoplasms, Connective Tissue/surgery , Osteomalacia , Paraneoplastic Syndromes , Retrospective Studies , Young Adult
15.
Endocr Pract ; 20(5): e80-5, 2014 May.
Article in English | MEDLINE | ID: mdl-24449673

ABSTRACT

OBJECTIVE: To describe a case of pheochromocytoma (PHEO) with tetralogy of Fallot (TOF) and discuss the difficulties encountered during the management of this patient, with a review of the literature. METHODS: We report the clinical course, imaging, and management issues of our patient and review relevant literature. RESULTS: A 14-year-old female who was known to have TOF presented with classical paroxysmal symptoms and worsening dyspnea. She was diagnosed as having epinephrine-secreting PHEO based on biochemical, radiologic, and functional imaging. She was treated with an α-1 blocker for control of paroxysms but developed severe cyanotic spells. She required addition of a calcium-channel blocker for control of the paroxysms and underwent successful cardiac repair. CONCLUSION: Treatment of the combination of cyanotic congenital heart disease (CCHD) and PHEO requires an individualized and multidisciplinary approach with judicious use of available medications. This is the first case of uncorrected TOF and epinephrine-secreting PHEO. Our case also reiterates the need for further studies to better understand the pathophysiologic link between PHEO/paraganglioma and CCHD.

16.
Pituitary ; 17(1): 60-7, 2014 Feb.
Article in English | MEDLINE | ID: mdl-23381232

ABSTRACT

The objective of this study was to assess the efficacy of modern conformal fractionated radiotherapy (RT) in patients with uncured Cushing's disease (CD) after failed transsphenoidal surgery (TSS). In this retrospective analysis, we reviewed records of patients with CD who received modern conformal fractionated RT between 2001 and 2010. Records were evaluated for frequency and interval of remission post RT. The change in the tumour size, endocrine insufficiencies and complications developing post RT were noted. Remission was defined as 2 mg Low dose dexamethasone suppressed cortisol of <50 nmol/l. During the study period of 10 years, a total of 24 patients (mean age: 27.9, range: 21-48 years) underwent pituitary RT for CD. Out of these, long term follow up was available for 22 patients and 20 patients (15F/5M, 12 microadenomas/8 macroadenomas) were included for final analysis. All the patients received modern conformal fractionated external beam RT (45 Gy in 25 fractions) with the median follow up of 37.5 months (range 12-144). Fifteen patients (10 microadenomas/5 macroadenomas) underwent remission after a median follow up period of 20 months. None of the patients had recurrence. Post RT, new onset endocrine deficiencies were seen in 8 (40 %) patients. Modern conformal fractionated external beam radiotherapy is an effective modality for treatment of adult patients with CD after failed TSS.


Subject(s)
Pituitary ACTH Hypersecretion/radiotherapy , Pituitary Neoplasms/radiotherapy , Adult , Dexamethasone , Dose Fractionation, Radiation , Female , Humans , Hypopituitarism/etiology , Male , Middle Aged , Pituitary ACTH Hypersecretion/surgery , Pituitary Neoplasms/surgery , Remission Induction , Retrospective Studies , Treatment Outcome
17.
Endocr Pract ; 19(6): 1007-14, 2013.
Article in English | MEDLINE | ID: mdl-24013993

ABSTRACT

OBJECTIVE: Ectopic adrenocorticotropic hormone (ACTH)-secreting syndrome (EAS) is a rare cause of ACTH-dependent endogenous hypercortisolism. The objective of this study was to analyze clinical, biochemical, and imaging characteristics; management strategies; and outcomes of EAS patients. METHOD: We screened the records (1993-2012) of ACTH-dependent endogenous hypercortisolism cases managed at a tertiary care center. RESULTS: Of the 218 patients, 17 were diagnosed with EAS. The median 8:00 AM serum cortisol was 36 µg/dL (11.4-82.7 µg/dL), and the median basal plasma ACTH was 156 pg/mL (53.5-468 pg/mL). Notably, ACTH levels below 100 pg/mL were found in 4 patients. Suspicious microadenoma was found on magnetic resonance imaging (MRI) of the pituitary in 5 patients, and all of them underwent transsphenoidal surgery (TSS). Inferior petrosal sinus sampling (IPSS) was performed in 8 patients, and the results were suggestive of a peripheral source in all 8. Computed tomography (CT) localized the lesion in 15/17 patients. In 2 patients with negative CTs, gallium DOTATATE positron emission tomography (PET) scans localized the lesion. Despite difficulties localizing bronchial carcinoids, the cure rate was high (72%). In contrast, thymic carcinoids were easily localized but had poor outcomes. CONCLUSION: EAS cannot be ruled out on the basis of marginally elevated ACTH. In cases with an equivocal MRI pituitary finding, prior IPSS can help avoid unnecessary TSS. CT is a useful modality for localization of an ectopic source. Functional imaging may help in cases where anatomical imaging fails.


Subject(s)
ACTH Syndrome, Ectopic/therapy , ACTH Syndrome, Ectopic/diagnosis , ACTH Syndrome, Ectopic/pathology , Adolescent , Adrenocorticotropic Hormone/blood , Adult , Biomarkers/blood , Bronchial Neoplasms/complications , Bronchial Neoplasms/pathology , Bronchial Neoplasms/therapy , Child , Corticotropin-Releasing Hormone/metabolism , Cushing Syndrome/blood , Cushing Syndrome/etiology , Female , Gallium , Humans , Hydrocortisone/blood , Magnetic Resonance Imaging , Male , Middle Aged , Pancreatic Neoplasms/complications , Pancreatic Neoplasms/pathology , Pancreatic Neoplasms/therapy , Pituitary Gland/pathology , Retrospective Studies , Thymus Neoplasms/complications , Thymus Neoplasms/pathology , Thymus Neoplasms/therapy , Thyroid Neoplasms/complications , Thyroid Neoplasms/pathology , Thyroid Neoplasms/therapy , Tomography, X-Ray Computed , Treatment Outcome , Young Adult
18.
Clin Endocrinol (Oxf) ; 78(6): 825-30, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23061773

ABSTRACT

BACKGROUND: Various techniques have been attempted to increase the yield of magnetic resonance imaging (MRI) for localization of pituitary microadenomas in corticotropin (ACTH)-dependent Cushing's syndrome (CS). OBJECTIVE: To compare the performance of dynamic contrast spin echo (DC-SE) and volume interpolated 3D-spoiled gradient echo (VI-SGE) MR sequences in the diagnostic evaluation of ACTH-dependent CS. DESIGN: Data was analysed retrospectively from a series of ACTH-dependent CS patients treated over 2-year period at a tertiary care referral centre (2009-2011). PATIENTS: Thirty-six patients (24 female and 12 male) were diagnosed to have ACTH-dependent CS during the study period. All patients underwent MRI by both sequences during a single examination. Cases with negative and equivocal pituitary MR imaging underwent corticotropin-releasing hormone (CRH) stimulated bilateral inferior petrosal sinus sampling (BIPSS) to confirm pituitary origin of ACTH excess state. Thirty patients were finally diagnosed to have Cushing's disease (CD) [based on histopathology proof of adenoma and/or remission (partial/complete) of hypercortisolism postsurgery]. Six patients were diagnosed to have histopathologically proven ectopic CS. RESULTS: Of 30 patients with CD, 24 patients had microadenomas and 6 patients had macroadenomas. DC-SE MRI sequence was able to identify microadenomas in 16 of 24 patients, whereas postcontrast VI-SGE sequence was able to identify microadenomas in 21 of 24 patients. All six patients of ectopic CS had negative pituitary MR imaging by both techniques (specificity: 100%). CONCLUSION: VI-SGE MR sequence was better for localization of pituitary microadenomas particularly when DC-SE MR sequence is negative or equivocal and should be used in addition to DC-SE MR sequence for the evaluation of ACTH-dependent CS.


Subject(s)
Adenoma/diagnosis , Pituitary ACTH Hypersecretion/diagnosis , Pituitary Neoplasms/diagnosis , Adolescent , Adrenocorticotropic Hormone/metabolism , Adult , Child , Female , Humans , Magnetic Resonance Imaging/methods , Male , Middle Aged , Petrosal Sinus Sampling , Retrospective Studies
19.
Indian J Pediatr ; 80(7): 560-4, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23080267

ABSTRACT

OBJECTIVES: To study blame ascription among parents of children with Down syndrome and to study its correlation with sociodemographic factors, parental perception of dysmorphisms and parents' knowledge about Down syndrome. This is a prospective, observational, non-interventional case control study. METHODS: Interview of biological parents of children with Down syndrome less than 12 y of age was taken. Dysmorphism and parents' feeling of blame was assessed and graded by Likert's scale. Controls were parents of age and gender matched children with non-genetic chronic disorders. RESULTS: During the study period, 50 mothers and 46 fathers of cases and 50 control parents were interviewed. Parents in the study group were older; the mothers were better educated and had more frequent antenatal visits. There was no significant difference in the proportion of parents counseled but genetic counseling was associated with a significantly higher proportion of parents having knowledge about Down syndrome. A higher proportion of parents perceived their child with Down syndrome being dysmorphic. Blame ascription was not significantly different among the two groups and was seen only in a small proportion of parents of cases. When it did occur, it was directed at health professionals. CONCLUSIONS: Blame ascription is not frequent in a cohort of Indian parents of children with Down syndrome even when dysmorphism is perceived by parents. Genetic counseling was associated with better knowledge about Down syndrome in the parents.


Subject(s)
Down Syndrome/psychology , Parents/psychology , Adaptation, Psychological , Adult , Case-Control Studies , Child , Child, Preschool , Denial, Psychological , Female , Genetic Counseling , Humans , India , Infant , Infant, Newborn , Interviews as Topic , Male , Prospective Studies , Social Adjustment , Stress, Psychological/psychology
20.
Indian J Endocrinol Metab ; 16(6): 1043-6, 2012 Nov.
Article in English | MEDLINE | ID: mdl-23226664

ABSTRACT

A patient with microprolactinoma, who had two successful pregnancies, is described for management issues. First pregnancy was uneventful. During the second pregnancy, the tumor enlarged to macroprolactinoma with headache and blurring of vision which was managed successfully with bromocriptine. Post delivery, complete disappearance of the tumor was documented.

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