COVID19

Coronavirus Infection

Pregnancy Disease

Severe Acute Respiratory Syndrome

Instituto Materno Infantil Prof. Fernando Figueira

Northeast COVID-19 and Pregnancy Study Group

Clinical and Laboratory Predictors of COVID-19 Progression and Maternal and Perinatal Outcomes in Infected Pregnant and Postpartum Women in Six Reference Centers in the Northeast of Brazil

Refers to a woman who almost died, but survived a serious complication that occurred during pregnancy, childbirth or within 42 days after termination of the pregnancy, depending on the presence of at least one of the criteria adopted by the World Health Organization ( WHO). Variable, categorical and dichotomous yes / no type.

It is the death of a woman during pregnancy or within 42 days after the end of the pregnancy or due to measures taken in relation to the pregnancy, but not due to accidental or incidental causes. Variable, categorical and dichotomous yes / no type.

It refers to the newborn classified with severe morbidity by pragmatic criteria (Apgar <7 in the 5th minute, birth weight <1,750 grams or gestational age <33 weeks) or conduct (parenteral antibiotic therapy - up to 7 days and before the 28th day of life, nasal CPAP, intubation, up to 7 days and before the 28th day of life, phototherapy within 24 hours of life, cardiopulmonary resuscitation, use of vasoactive drugs, use of anticonvulsants, use of blood products, use of corticosteroids to treat refractory hypoglycemia and surgery) but who survived the 27th day of life, included. Yes / no categorical and dichotomous variable.

Death occurred in the first 27 days, included, after delivery. Yes / no categorical and dichotomous variable.

Death occurred in the first 7 days of life. Yes / no dichotomous categorical variable

Intrauterine death, corresponding to the birth of a fetus without signs of life, weighing 500 grams or more. Dichotomous categorical variable of the yes / no type.

Corresponds to cases of fetal death added to those of early neonatal death. Dichotomous categorical variable of the yes / no type.

Calculated based on the date of birth recorded in the medical record, hospital identification data, or according to the patient's information, in full years. Numerical and discrete variable.

maternal weight before pregnancy, in kilogram (kg), according to information collected from the patient and / or made available on the prenatal card or medical record. Numeric and continuous variable.

expressed, in meters, according to information collected from the patient and / or made available on the prenatal card or medical record. Numeric and continuous variable.

classified according to pre-gestational BMI: low weight grade III (≤ 16.00), low weight grade II (≥ 16.00 to <16.99), low weight grade I (≥ 17 , 00 to <18.49), ideal weight (≥ 18.50 to <24.99), overweight (≥ 25.00 to <29.99), grade I obesity (≥ 30.00 to <34.99) , grade II obesity (≥35.00 to <39.99) and grade III obesity (≥ 40.00).

expressed in Kg / m2, calculated by weight (kg) divided by height (m) squared. Numeric and continuous variable.

according to the patient's self-declaration and collected according to information and / or recorded in the medical record or prenatal card in black, white, brown, yellow and indigenous.

defined as the number of people, regardless of age, living in the same household, collected according to the patient's information. Numerical and discrete variable.

collected according to the patient's information as the sum of the monthly income of all members living in the household, including benefits from social programs and informal income. Categorized in: up to 1 minimum wage; 1 to 2 minimum wages; 3 to 5 minimum wages; more than 5 minimum wages. Numerical and discrete variable.

as informed by the patient, recorded in medical records or prenatal card and categorized as illiterate (zero), elementary school (one to nine years), high school (10 to 12 years) and higher education (> 12 years) ). Numerical and discrete variable.

as declared by the patient and noted on the medical record or prenatal card, later categorized as: health, education, general services, home, domestic, student, merchant or commerce, security, self-employed, economy, tourism, music, nutrition, computers, journalism, engineering and others.

as declared by the patient, as being a formal job or not, which presents any monthly financial income. Yes / no categorical and dichotomous variable.

declared by the patient and recorded in medical records or prenatal card in: single, married, stable, separated and widowed.

as informed by the patient and recorded in medical records, related to the city where she lives, defined as Recife, metropolitan region (Jaboatão dos Guararapes, Olinda, Paulista, Moreno, Igarassu, Abreu e Lima, Camaragibe, Cabo de Santo Agostinho, São Lourenço da Mata, Araçoiaba, Itamaracá Island, Ipojuca and Itapissuma), interior and other states.

according to the belief declared by the patient and categorized into: atheist, catholic, evangelical, spiritist, Anglican charismatic and others.

smoking, regardless of quantity, during pregnancy, as stated by the patient. Yes / no categorical and dichotomous variable.

habit of drinking alcoholic beverages, regardless of quantity, during pregnancy, as stated by the patient. Yes / no categorical and dichotomous variable.

use of non-legal drugs, such as marijuana, cocaine, crack and the like, regardless of the amount, during pregnancy, as stated by the patient. Yes / no categorical and dichotomous variable.

number of previous pregnancies, including the current one, regardless of the gestational outcome (abortion, delivery, number of fetuses, ectopic pregnancy or fetal death), as reported by the patient and noted in the medical record or prenatal card. Numerical and discrete variable.

number of previous deliveries with fetuses over 500g and / or gestational age greater than 22 weeks, regardless of multiple gestation, perinatal death or delivery, as reported by the patient and noted in the medical record or prenatal card. Numerical and discrete variable.

number of previous deliveries with fetuses over 500g and / or gestational age greater than the 22nd week, by cesarean section, as informed by the patient and noted in the medical record or prenatal card. Numerical and discrete variable.

number of previous births with fetuses above 500g and / or gestational age greater than 22 weeks, vaginally, regardless of whether instrumental, as informed by the patient and noted in the medical record or prenatal card. Numerical and discrete variable.

number of interruptions of pregnancy with fetuses below 500g and / or gestational age below 22 weeks, regardless of being spontaneous, as informed by the patient and noted in the medical record or prenatal card. Numerical and discrete variable.

number of children who remain alive, regardless of the cause of death, as informed by the patient and noted in medical records or prenatal card. Numerical and discrete variable.

as informed by the patient or noted on the prenatal card and medical record, the number of consultations performed during prenatal care. Numerical and discrete variable.

gestational age, in weeks, calculated by the day of the last menstruation and confirmed by the first ultrasound scan of the onset of flu-like signs and symptoms. Numerical and discrete variable.

number of days after birth of the onset of flu-like signs and symptoms. Numerical and discrete variable.

number of days the patient had signs and symptoms of flu-like syndrome and its complications. Numerical and discrete variable.

when the patient declared that at the beginning of the signs and symptoms she was separated / isolated at home without any contact with healthy people, including not even going out for essential purchases, for a period of 14 days. Yes / No categorical and dichotomous variable.

it is a measure of community restraint, adopted in some cases, to prevent the spread of a certain contagious disease. Considered when the patient declared that she was at home, leaving only what was necessary for essential purchases, before the onset of signs and symptoms. Yes / No categorical and dichotomous variable.

when the patient declared that she had contact with people infected with COVID-19 and / or traveled to places considered to be the epicenter of the disease, but even asymptomatic, she stayed home without contact with other people, including not even going out for essential purchases, for a period of seven to 14 days. Yes / No categorical and dichotomous variable.

when there is a need for hospitalization due to flu-like syndrome and / or its complications, excluding hospitalizations due to obstetric complications and includes all participants, especially pregnant women monitored during prenatal care. Yes / No categorical and dichotomous variable.

day of hospitalization due to flu syndrome and / or complications. Numerical and discrete variable.

length of stay, in days, as described in the medical record. Numerical and discrete variable.

As reported by the patient (dry cough, day of onset of dry cough, productive cough, day of onset of productive cough, coryza, day of onset of runny nose, body pain, day of onset of body pain, abdominal pain, day of onset of abdominal pain, chest pain, day of onset of chest pain, headache, day of onset of headache, dyspnoea, day of onset of dyspnoea, subfebrile state, day of onset of subfebrile state, fever, day of onset of fever, diarrhea , day of onset of diarrhea, sore throat, day of onset of sore throat, taste change, day of onset of taste change, smell change, day of onset of smell change, asthenia, day of onset of asthenia , axillary temperature, oxygen saturation).

result of RT-PCR in the diagnosis of COVID-19, by means of blood or nasopharyngeal secretion, according to the usual technique, being categorized as positive, negative and indeterminate.

result of RT-PCR in the differential diagnosis of respiratory syndrome, through blood or nasopharyngeal secretion, according to the technique and kit used, being categorized as positive (any virus found), negative and indeterminate.

result of the RT-PCR of the viral panel in the differential diagnosis of flu syndrome, through blood or nasopharyngeal secretion, according to the technique and kit used, categorized according to the virus found.

result in the diagnosis of COVID-19, by means of blood, according to the usual technique, being categorized as positive, negative and indeterminate.

result of IgM COVID-19 serology, through blood, according to the Enzyme-Linked Immunosorbent Assay (ELISA) technique or immunochromatography or chemiluminescent immunoassay, being categorized as positive, negative and indeterminate, according to the reference values of each serological kit, performed after the 5th day of signs and symptoms. Numeric and continuous variable.

result of IgA COVID-19 serology, through blood, according to the ELISA technique, being categorized as positive, negative and indeterminate, according to the reference values of each serological kit, performed after 5th day of signs and symptoms. Numeric and continuous variable.

result of IgG COVID-19 serology, by means of blood, according to the ELISA technique, being categorized as positive, negative and indeterminate, according to the reference values of each serological kit, performed after 14th day of signs and symptoms. Numeric and continuous variable.

rom the first exam (day zero). Describe the subsequent days. Numerical and discrete variable.

after diagnostic confirmation of COVID-19 and 14 days after the cure criteria, the RT-PCR test returns positive. Yes / No categorical and dichotomous variable.

substances capable of modulating the cellular response of several cells, such as interleukins - IL-1ra, IL-6, IL-2, IL-5, IL-10, IL-12, IL-13, IL17A, IL-4, IL-1β, IL-9, IL-15, Interferon - IFN-γ and Tumor necrosis factor - TNF-α, in maternal blood, in pg / ml, from the beginning of the flu syndrome or COVID- 19 and in the period of the syndrome. Numeric and continuous variable (for each cytokine).

day of the first cytokine dosage from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

day of the first blood count from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first hemoglobin measured in maternal blood, in g / dL, from the flu syndrome and in the period of the syndrome, being normal ≥ 11.0g / dL and ≤ 16.0g / dL. Numeric and continuous variable.

value of the first leukocyte measured in maternal blood, / mm3, from the flu syndrome and in the period of the syndrome, being normal ≥ 4,000 / mm3 and ≤ 11,000 / mm3. Numerical and discrete variable.

when the rod / segment ratio is greater than 1/16 and / or the presence of young cells (promyelocytes, myelocytes, metamyelocytes) occurs, starting with the flu syndrome and in the period of the syndrome. Yes / No categorical and dichotomous variable.

value of the first platelet measured in maternal blood, / mm3, from the flu syndrome and in the period of the syndrome, being normal ≥ 150,000 / mm3 and ≤ 400,000 / mm3. Numerical and discrete variable.

value of the first typical lymphocyte measured in maternal blood, / mm3, from the flu syndrome and in the period of the syndrome, being normal ≥ 1,050 / mm3 and ≤ 3,850 / mm3. Numerical and discrete variable.

value of the first atypical lymphocyte measured in maternal blood, / mm3, from the flu syndrome and in the period of the syndrome, being normal ≥ 0 / mm3 and ≤ 220 / mm3. Numerical and discrete variable.

day of the first coagulogram from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first TB measured in maternal blood, in seconds (s), from the flu syndrome and the period of the syndrome, being normal from 60s to 180s. Numerical and discrete variable.

value of the first CT measured in maternal blood, in seconds (s), from the flu syndrome and the period of the syndrome. Numerical and discrete variable.

value of the first TD measured in maternal blood, in seconds (s), from the flu syndrome and in the period of the syndrome, with a value of up to 11.3s being normal. Numerical and discrete variable.

value of the first APTT measured in maternal blood, in seconds (s), from the flu syndrome and the period of the syndrome, with a value of up to 30.5s being normal.

value of the first INR measured in maternal blood, from the flu syndrome and the period of the syndrome, being normal between 2 and 3. Numerical and discrete variable.

day of the first urea from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first urea measured in maternal blood, in mg / dL, from the flu syndrome and in the period of the syndrome, being normal ≥ 19.2mg / dL and ≤ 49.2mg / dL. Numerical and discrete variable.

day of the first creatinine from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first creatinine measured in maternal blood, in mg / dL, from the flu syndrome and in the period of the syndrome, being normal ≥ 0.5mg / dL and ≤ 1.1mg / dl. Numerical and discrete variable.

defined as aspartate aminotransferase (AST) or glutamic-oxalacetic transaminase (TGO) and alanine aminotransferase (ALT) or glutamic-pyruvic transaminase (TGP), from the beginning of the flu syndrome or COVID-19 on syndrome period.

day of the first VSH from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first VSH measured in maternal blood, in mm / h, from the flu syndrome and in the period of the syndrome, being normal <20mm / h. Numerical and discrete variable.

day of the first CRP from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first CRP measured in maternal blood, in mg / L, from the flu syndrome and in the period of the syndrome, being normal <5mg / L. Numerical and discrete variable.

day of the first D-dimer from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first D-dimer dosed in maternal blood, in mg / dL, from the flu syndrome and the period of the syndrome. Numerical and discrete variable.

day of the first DHL from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first DHL measured in maternal blood, in mg / dL, from the flu syndrome and the period of the syndrome, being normal ≥ 125U / L and ≤ 243U / L. Numerical and discrete variable.

day of the first alkaline phosphatase from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first alkaline phosphatase measured in maternal blood, in U / L, from the flu syndrome and in the period of the syndrome, being normal ≥ 46U / L and ≤ 116U / L. Numerical and discrete variable.

day of the first troponin from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the first troponin measured in maternal blood, in ng / mL, from the flu syndrome and in the period of the syndrome, being normal <0.4 ng / mL. Numerical and discrete variable.

day of the first ferritin from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

alue of the first ferritin measured in maternal blood, in ng / mL, from the flu syndrome and the period of the syndrome. Numerical and discrete variable.

defined as total (BT), direct (BD) and indirect (BI) bilirubins from the beginning of the flu syndrome or COVID-19 and in the period of the syndrome.

day of the first blood culture from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

result of the first blood culture from the flu syndrome and in the period of the syndrome, categorized as negative and positive (growth of the microorganism). Categorical and dichotomous variable.

name of the microorganism, which grew on examination, from the flu syndrome and the period of the syndrome, according to its taxonomic classification.

day of the first uroculture from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

result of the first uroculture from the flu syndrome and in the period of the syndrome, categorized as negative and positive (growth of the microorganism). Categorical and dichotomous variable.

worst result of IgM COVID-19 serology, through blood, according to the Enzyme-Linked Immunosorbent Assay (ELISA) technique or immunochromatography or chemiluminescent immunoassay, being categorized as positive, negative and indeterminate, of according to the reference values of each serological kit, performed after the 5th day of signs and symptoms. Numeric and continuous variable.

Result of the worst result of IgA COVID-19 serology, through blood, according to the ELISA technique, being categorized as positive, negative and indeterminate, according to the reference values of each serological kit , performed after the 5th day of signs and symptoms. Numeric and continuous variable.

worst result of IgG COVID-19 serology, performed using blood, according to the ELISA technique, being categorized as positive, negative and indeterminate, according to the reference values of each kit serological test, performed after the 14th day of signs and symptoms. Numeric and continuous variable.

substances capable of modulating the cellular response of several cells, such as interleukins - IL-1ra, IL-6, IL-2, IL-5, IL-10, IL-12, IL-13, IL17A , IL-4, IL-1β, IL-9, IL-15, Interferon - IFN-γ and Tumor necrosis factor - TNF-α, in maternal blood, in pg / ml, being the worst maternal result, from the beginning of the flu syndrome or COVID-19 and in the period of the syndrome. Numeric and continuous variable (for each cytokine).

day of the performance of the worst urea result from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the worst result of urea measured in maternal blood, in mg / dL, from the flu syndrome and in the period of the syndrome being normal ≥ 19.2mg / dL and ≤ 49.2mg / dL. Numerical and discrete variable.

day of the worst creatinine result from the flu syndrome and in the period of the syndrome. Numerical and discrete variable.

value of the worst result of creatinine measured in maternal blood, in mg / dL, from the flu syndrome and in the period of the syndrome, being normal ≥ 0.5mg / dL and ≤ 1.1mg / dl. Numeric and discrete variable.

defined as the worst outcome of aspartate aminotransferase (AST) or glutamic-oxalacetic transaminase (TGO) and alanine aminotransferase (ALT) or glutamic-pyruvic transaminase (TGP) from the onset of the flu syndrome or COVID- 19 and in the period of the syndrome.

Leila Katz

Principal Investigator

Patients will receive preoperative oral supplementation of 8mg of dexamethasone (Dexamethasone Krka tablets (8mg), Warsaw, Poland) in a single dose taken once one hour before surgery. At 6 and 24 hour after surgery, clinical and laboratory parameters will be measured and evaluated.

Patients will receive preoperative oral supplementation of sweetener (Clio tablets, sweetener with a dispenser, Instantina GES, Vienna, Austria) taken once in a single dose one hour before surgery. At 6 and 24 hour after surgery, clinical and laboratory parameters will be measured and evaluated.

Hypocalcemia

Vitamin D Deficiency

Postoperative Complications

Postoperative Nausea

Postoperative Pain

Voice Hoarseness

Hypoparathyroidism Postprocedural

Preoperative oral dexamathasone supplementation in a single dose of 8mg.

Dexamethasone oral tablet 8mg (Dexamethasone Krka tablets(8mg), Warsaw, Poland).

Preoperative oral supplementation of sweetener in a single dose.

Placebo oral sweetener (Clio tablets, sweetener with a dispenser, Instantina GES, Vienna, Austria).

Preoperative parameters such as blood count, calcium, inorganic phosphates, albumin, alkaline phosphatase, C reactive protein, procalcitonin, 25-hydroxyvitamin D, fibrinogen, parathormone, magnesium, interleukin 1β, interleukin 6, interleukin 10, thyroid stimulating hormone, free thyroxine, free triiodothyronin will be measured in serum.

Preoparative blood laboratory tests

At 6 hour after surgery such parameters as blood count, calcium, inorganic phosphates, albumin, alkaline phosphatase, C reactive protein, procalcitonin, 25-hydroxyvitamin D, fibrinogen, parathormone, magnesium will be measured in serum.

Postoperative laboratory blood tests at 6 hour

At 24 hour after surgery such parameters as blood count, calcium, inorganic phosphates, albumin, alkaline phosphatase, C reactive protein, procalcitonin, 25-hydroxyvitamin D, fibrinogen, parathormone, magnesium, interleukin 1β, interleukin 6, interleukin 10 will be measured in serum.

Postoperative laboratory blood tests at 24 hour

At 24 hour after surgery such parameters as interleukin 1β, interleukin 6, interleukin 10 will be measured in drainage fluid.

Postoperative laboratory drainage fluid tests at 24 hour

Patients will undergo total thyroidectomy under general anesthesia.

Total thyroidectomy

At 6 hour after surgery patients will be assessed for signs of hypocalcaemia.

Symptomatic hypocalcaemia at 6 hour

At 24 hour after surgery patients will be assessed for signs of hypocalcaemia.

Symptomatic hypocalcaemia at 24 hour

At 6 hour after surgery the incidence and intensity of postoperative pain will be evaluated according to Visual Analogue Scale (VAS).

Postoperative pain at 6 hour

At 24 hour after surgery the incidence and intensity of postoperative pain will be evaluated according to Visual Analogue Scale (VAS).

Postoperative pain at 24 hour

At 6 hour after surgery the incidence and intensity of postoperative nausea and vomiting will be evaluated.

Postoperative nausea and vomiting at 6 hour

At 24 hour after surgery the incidence and intensity of postoperative nausea and vomiting will be evaluated.

Postoperative nausea and vomiting at 24 hour

At 6 hour after surgery the incidence and intensity of postoperative sore throat and hoarseness will be evaluated.

Postoperative sore throat and hoarseness at 6 hour

At 24 hour after surgery the incidence and intensity of postoperative sore throat and hoarseness will be evaluated.

Postoperative sore throat and hoarseness at 24 hour

The Effect of Preoperative Oral Dexamethasone Supplementation on the Outcome of Thyroidectomised Patients.

The Impact of Preoperative Oral Dexamethasone Supplementation on the Biochemical Parameters and Results of Surgical Treatment in Patients With Nontoxic Multinodular Goiter Undergoing Total Thyroidectomy.

To evaluate the incidence of laboratory hypocalcaemia (corrected calcium serum level <2.0 mmol/l), the change in calcium levels and symptomatic hypocalcaemia in the postoperative period in the supplementation group and in the placebo group.

To evaluate the incidence of hypoparathyroidism (parathormone serum level <1.6 pmol/l) and the change in parathormone levels in the postoperative period in the supplementation group and in the placebo group.

To evaluate the intensity of postoperative pain according to Visual Analogue Scale (VAS scale) in the postoperative period in the supplementation group and in the placebo group. Minimum value is 0 (no pain) and maximum value is 10 (the worst possible pain). Higher scores mean a worse outcome.

To evaluate the incidence and the intensity of postoperative nausea in the postoperative period in the supplementation group and in the placebo group. The intensity of nausea will be rated on a verbal rating scale based on verbal responses of the patient to questions: 0 - no nausea; 1 - mild nausea (1 episode of nausea); 2 - moderate nausea (2 or 3 episodes of nausea ); and 3 - severe nausea (>3 episodes of nausea ). Higher scores mean a worse outcome.

To evaluate the incidence and the intensity of postoperative vomiting in the postoperative period in the supplementation group and in the placebo group.The intensity of vomiting will be rated on a verbal rating scale based on verbal responses of the patient to questions: 0 - no episodes of vomiting; 1 - mild vomiting (1 episode of vomiting); 2 - moderate vomiting (2 or 3 episodes of vomiting); and 3 - severe vomiting (>3 episodes of vomiting).Higher scores mean a worse outcome.

To evaluate the incidence and the intensity of postoperative sore throat in the postoperative period in the supplementation group and in the placebo group. Postoperative sore throat will be defined as discomfort at larynx or pharynx at rest and during swallowing after surgery. The intensity of sore throat will be rated on a verbal rating scale based on verbal responses of the patient to questions: 0 - none; 1 - mild sore throat (less severe than with a cold); 2 - moderate sore throat (similar with a cold); and 3 - severe sore throat (more severe than with a cold). Higher scores mean a worse outcome.

To evaluate the incidence and the intensity of postoperative hoarseness in the postoperative period in the supplementation group and in the placebo group. The intensity of hoarseness will be rated on a verbal rating scale based on verbal responses of the patient to questions: 0 - none; 1 - mild hoarseness (noticed by the patient only); 2 - severe hoarseness (obvious to observer); 3 - aphonia (silence of voice). Higher scores mean a worse outcome.

To evaluate the serum levels of cytokines such as interleukin 1β, interleukin 6, interleukin 10 and the change in cytokines levels in the postoperative period in the supplementation group and in the placebo group.

To evaluate the levels of cytokines such as interleukin 1β, interleukin 6, interleukin 10 in the drain fluid in the postoperative period in the supplementation group and in the placebo group.

To evaluate the serum levels of alkaline phosphatase,inorganic phosphates and magnesium and the change in their levels in the postoperative period in the supplementation group and in the placebo group.

To evaluate the levels of 25-hydroxyvitamin D in the preoperative and postoperative period and the change in its levels in the supplementation group and in the placebo group. To evaluate the incidence of vitamin D deficiency in the group of operated patients.

To evaluate the serum levels of albumin, C reactive protein, procalcitonin and fibrinogen and the change in their levels in the postoperative period in the supplementation group and in the placebo group.

All IPD will be included in planned publication.

Anna Grzegory

Medical Universtity of Lodz

Patients will be randomly assigned (coin toss) to the supplementation group (preoperative oral supplementation of dexamethasone (8mg in one dose) taken one hour before surgery) and to the placebo group (preoperative oral supplementation of sweetener taken one hour before surgery).

Myelodysplastic Syndrome With Low-grade Lesions

Iron Overload Due to Repeated Red Blood Cell Transfusions

This is a single-arm, open-label, multi-center study in 20 patients with MDS. All participants will be treated with deferiprone for up to 4 months.

Deferiprone

ApoPharma Inc. Ferriprox® (deferiprone) - Summary of Product Characteristics (EU), 2012

Chim Sheba Medical Center

Effect of Deferiprone on Oxidative-Stress and Iron-Overload in Low Risk Transfusion-Dependent MDS Patients

The Effect of Treatment With the Oral Iron Chelator Deferiprone on the Oxidative Stress of Blood Cells and on Iron Overload Status in Transfusion Dependent, Iron-overloaded Patients With Low Risk Myelodysplastic Syndrome

The change from baseline to end of study in ROS

The change from baseline to end of study in Reduced glutathione

The change from baseline to end of study in lipid peroxidation

The change from baseline to end of study in External phosphatidylserine

The change from baseline to end of study in serum ferritin levels

The change from baseline to end of study in serum LIP levels

The change from baseline to end of study in serum LPI levels

The change from baseline to end of study in serum hepcidin levels

Frequency, severity, time to onset, duration, and relatedness to study product and number of discontinuations due to AEs

Dr. Drorit Merkel

Senior physician in the Hematology wing

Sheba Medical Center

Hadassah Medical Organization

Tel Aviv Medical Center

Kaplan Medical Center

Ziv Medical Center

flecainide x 6 months, then crossover to sotalol x 6 months

sotalol x 6 months, then crossover to flecainide x 6 months

Atrial Fibrillation

flecainide up to 150mg twice daily for the control of atrial fibrillation

Flecainide

sotalol up to 120mg twice daily for the control of atrial fibrillation

Sotalol

Jesse Brown VA Medical Center

Rush University Medical Center

University of Illinois at Chicago

Advocate Christ Medical Center

Pharmacogenetic Study of Antiarrhythmic Drugs for Atrial Fibrillation

A Prospective, Multi-Center, Randomized, Open Label Trial to Determine if a Common Atrial Fibrillation Risk Locus Modulates Differential Response to Antiarrhythmic Drugs

pharyngitis/phosphatase

Northeast COVID-19 and Pregnancy Study Group

The Effect of Preoperative Oral Dexamethasone Supplementation on the Outcome of Thyroidectomised Patients.

Effect of Deferiprone on Oxidative-Stress and Iron-Overload in Low Risk Transfusion-Dependent MDS Patients

Pharmacogenetic Study of Antiarrhythmic Drugs for Atrial Fibrillation

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